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Defense Meteorological Satellite Program
Defense Meteorological Satellite Program
Defense Meteorological Satellite Program
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Defense Meteorological Satellite Program
Artist rendition of a DMSP-5D2 satellite in orbit
Program overview
CountryUnited States
OrganizationUnited States Space Force
PurposeEarth monitoring
StatusOngoing
Program history
First flightDMSP-1 F2
23 August 1962
Last flightDMSP 5D-3/F19
3 April 2014
Launch siteVandenberg Space Force Base

The Defense Meteorological Satellite Program (DMSP) monitors meteorological, oceanographic, and solar-terrestrial physics for the United States Department of Defense. The program is managed by the United States Space Force with on-orbit operations provided by the National Oceanic and Atmospheric Administration (NOAA).[1] The (originally classified) mission of the satellites was revealed in March 1973. They provide cloud cover imagery from polar orbits that are Sun-synchronous at nominal altitude of 830 km (520 mi).[2]

All data ingestion, processing, and distribution by Fleet Numerical Meteorology and Oceanography Center (FNMOC) was set to be permanently terminated as of June 30, 2025 due to a "significant cybersecurity risk." However, the Earth Science Division Director at NASA, Dr. Karen St. Germain, requested that the decommission be delayed due to the short notice provided. FNMOC now expects to continue to ingest and disseminate data until July 31, 2025.[3]

History

[edit]
DMSP and POES orbits shown in a GAO diagram.

Early in 1963 The Aerospace Corporation recommended that the U.S. Air Force develop a dedicated military meterological satellite, and the Defense Department agreed.[4] The main emphasis would be on cloud-cover photography, but planners expected to add more sophisticated equipment when it became available. Later, when civilian weather satellites improved their capabilities and could satisfy most military requirements, the Defense Department continued to prefer a separate system responsive to the "dynamic" needs of the military. As a result, the Air Force embarked on the first segment of what became known initially as the Defense Satellite Applications Program (DSAP), or Program 417.

During the 1960s, one of the most important projects that the United States civil space program was involved in dealt with meteorology and weather forecasting. Unbeknownst to many, the U.S. military services were also starting up a weather satellite program. This program, the DMSP, would relay important weather and climate data to the military for more effective operations. From the onset of the DMSP program, knowledge of its existence was limited to "need-to-know" personnel. The United States Congress had assigned a substantial budget towards the civil weather satellite program; if knowledge of a second military program came out, it would have been hard for the military to justify it.[citation needed]

FAIR Operations room ca. 1977

Initial operations of early DMSP systems provided radio return of cloud-cover imagery for planning of U.S. high-resolution photographic reconnaissance and surveillance missions, which utilized film-return systems. DMSP satellites operated in a Sun-synchronous orbit; passing over the north and south poles, the satellite would see different strips of the Earth at the same local time each day. The DMSP satellites had periods of roughly 101.0 minutes, so they would orbit the Earth 14.3 times in 24 hours. This period combined with the Sun-synchronous orbit would have the satellite pass over the whole surface of the planet twice a day.

Comparison of Visible Infrared Imaging Radiometer Suite (VIIRS) and Operational Linescan System (OLS)

The images acquired were relayed to the Earth and received by two command and readout stations [when?] established at retired Nike missile sites located near Fairchild Air Force Base in Washington State and Loring Air Force Base in Maine.[5] From these sites, the images were then sent to Air Force Global Weather Central (AFGWC) located at Offutt Air Force Base, Nebraska. Images would then be processed, forming a mosaic representing the cloud patterns that were observed from the orbiting satellites. Meteorologists could then provide flight crews and other commanders with up-to-date observations for their particular missions. Further advancements enabled data to be collected in the visual spectrum, down to a half-moonlit scene. Infrared processing enabled night viewing. Other enhancements increased on-board processing; this includes multiple on-board computers and expanded power requirements.[citation needed]

Rendering of lights on Earth's surface created using DMSP observations between 1994 and 1995
DMSP images of Auroral bands circling north of Scandinavia in December 2010

Now in its fifth decade of service, the DMSP program has proven itself to be a valuable tool in scheduling and protecting military operations on land, at sea, and in the air. Because the Air Force weather satellite program began with the mission of providing weather data for Strategic Air Command and National Reconnaissance Office (NRO), DSAP remained classified until 17 April 1973, when Secretary of the Air Force Dr. John L. McLucas decided that the Defense Department's decision to use satellite weather data in the Vietnam conflict and to provide it to both the Commerce Department and the general scientific community warranted declassification of the DSAP mission and release of some of its performance data. In December 1973 the Defense Department changed the name to the Defense Meteorological Satellite Program (DMSP). On 1 June 1998, the control and maintenance of the satellites were transferred to National Oceanic and Atmospheric Administration (NOAA) in order to reduce costs.[6]

DMSP was to be replaced by the Defense Weather Satellite System (DWSS) but that was cancelled in 2012. In 2017, the Air Force awarded a contract to build the first of the new defense weather satellites, the Weather System Follow-on Microwave (WSF-M) satellite.[7]

Losses of satellites

[edit]

2004 explosion

[edit]

In 2004 the USAF weather satellite DMSP Block 5D-2 F-11 (S-12) or DMSP-11, launched in 1991 and retired in 1995, exploded in orbit with debris objects generated. It seems likely the fragmentation was due to either a battery explosion or to residual fuel in the attitude control system.[8][9] Later, propulsion was identified as the "assessed cause" of DMSP-11 explosion.[10]

2015 explosion and debris field

[edit]

On 3 February 2015, the 13th DMSP satellite — DMSP-F13 launched in 1995 — exploded while in a Sun-synchronous polar orbit leaving a debris field of at least 43 to 100 large fragments and more than 50,000 pieces smaller than 1 millimeter.[11] The Joint Space Operations Center at Vandenberg Space Force Base, Lompoc, California is monitoring the expanding debris field, and "will issue conjunction warnings if necessary".[12] The cause of the explosion was the rupturing of an onboard battery due to a design flaw (no collision with another object took place).[13]

2016 failure of DMSP 19 without replacement

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On 11 February 2016, a power failure left both the command-and-control subsystem and its backup without the ability to reach the satellite's processor, according to the U.S. Air Force Space Command investigation released in July 2016 that also announced that DMSP 5D-3/F19 was considered to be 'lost'. The satellite's data can still be used, until it ceases pointing the sensors towards the Earth. The satellite was the most recent on-orbit, having been launched on 3 April 2014.[14]

The failure only left F16, F17 and F18 – all significantly past their expected 3–5 year lifespan – operational. F19's planned replacement was not carried out because Congress ordered the destruction of the already constructed F20 probe to save money by not having to pay its storage costs. It is unlikely that a new DMSP satellite would be launched before 2023; by then the three remaining satellites should no longer be operational.[15]

2016 explosion

[edit]

In October 2016, the 12th DMSP satellite - DMSP-F12 launched in 1994 - exploded in orbit. The satellite had similar battery as the one that exploded in the DMSP-13 satellite, thus raising suspicions that DMSP-12 explosion was also caused by battery problems. At the time the cause of DMSP-12's explosion was however unknown, although a collision with another object did not seem to be the cause. Apparently, very little debris (just one trackable piece) was generated in DMSP-12 explosion. DMSP-12 was decommissioned in 2008.[9]

Near collision

[edit]

In January 2017, the Joint Space Operations Center announced that two non-maneuverable satellites would come dangerously close, with a collision probability as high as 44%. DMSP F15 and Meteor 1-26 were considered to be the prime candidates for the encounter.[16] The operations center, which announced the possible collision, didn't identify the satellites involved but third party observers determined the most likely candidates.[16] The two did not collide.

NOAA 16 and 17

[edit]

The NOAA-16 and NOAA-17 weather satellites were based on the same technology as DMSP satellites. NOAA-16 broke up in November 2015, and NOAA-17 disintegrated in orbit on 10 March 2021.[17]

2024 explosion

[edit]

The DMSP 5D-2/F14 (USA-131), launched 4 Apr 1997 and decommissioned in 2020, exploded in orbit in December 2024.[18][19]

Launch history

[edit]
DMSP 4A shroud at SLC-10

DMSP was initially known as Program 35. The first successful launch of a Program 35 spacecraft used a Scout X-2 rocket lifting off from Point Arguello near Vandenberg Space Force Base on 23 August 1962.[20][21] This was P35-2, the earlier P35-1 launch on 24 May 1962 had failed to reach orbit.[22] All five Program 35 launch attempts using Scout launch vehicle, including the two successes, were made from Vandenberg SLC-5. Other early launches were conducted using Thor-Burner launch vehicles, with Altair or Burner II upper stages. Program 35 had by this time been renamed the Data Acquisition and Processing Program, and the DAPP acronym is sometimes used for these satellites.[23] Eight satellites were launched using Atlas E launch vehicles between 1982 and 1995. Three were launched aboard Titan II vehicles between 1997 and 2003. One has been launched on a Delta IV rocket.

The most recent launch of a DMSP satellite, DMSP-F19, occurred on 3 April 2014, from Vandenberg aboard an Atlas V launch vehicle.[24]

Block 1

[edit]
DMSP 1 Satellite

The DSAP-1 (Defense Satellite Application Program Block 1) satellites series, also known as P-35, was the first series of military meteorological satellites of the United States. The project designation P-698BH was used concurrently with P-35 from June 1962 and P-35 became P-417 in October 1962. The designation DMSP-1 (Defense Meteorological Satellite Program Block 1) was retroactively assigned to these satellites.

Block 2

[edit]

The DSAP-2 (Defense Satellite Application Program Block 2) satellites series consisted of three modified DSAP-1 satellites, retaining the shape and dimension of the earlier series, featuring improved infrared radiometers. The designation DMSP-2 (Defense Meteorological Satellite Program Block 2) was retroactively assigned to these satellites.

Block 3

[edit]

The single DSAP-3 (Defense Satellite Application Program Block 3) was a modified DSAP-2 satellite to provide experimental tactical access to weather data, for which a tactical readout station was built near Saigon. The designation DMSP-3 (Defense Meteorological Satellite Program Block 3) was retroactively assigned to this satellite.

Block 4A

[edit]
DMSP 4 Satellite

The DSAP-4A (Defense Satellite Application Program Block 4A) satellites series consisted of ten satellites, launched between 1965 and 1967. The designation DMSP-4A (Defense Meteorological Satellite Program Block 4A) was retroactively assigned to these satellites.

Block 5A

[edit]
DMSP 5 Satellite
DMSP Block-5A Satellite

The DSAP-5A (Defense Satellite Application Program Block 5A) satellites series consisted of six satellites, launched between 1968 and 1971. The designation DMSP-5A (Defense Meteorological Satellite Program Block 5A) was retroactively assigned to these satellites.

Block 5B

[edit]

The DSAP-5B (Defense Satellite Application Program Block 5B) satellites series consisted of five satellites, launched between 1971 and 1974. The designation DMSP-5B (Defense Meteorological Satellite Program Block 5B) was assigned to these satellites.

Block 5C

[edit]

The DSAP-5C (Defense Satellite Application Program Block 5C) satellites series consisted of three satellites, launched between 1974 and 1976. The designation DMSP-5C (Defense Meteorological Satellite Program Block 5C) was assigned to these satellites.

[41]

Block 5D

[edit]
DMSP 5D-1 diagram
DMSP 5D-2 diagram

The DSAP-5D (Defense Satellite Application Program Block 5D) satellites series consisted of nineteen satellites, launched between 1976 and 2014. The designation DMSP-5D (Defense Meteorological Satellite Program Block 5D) was assigned to these satellites.

In 2015, Congress voted to terminate the DMSP program and to scrap the DMSP 5D-3/F20 satellite, ordering the Air Force to move on to a next-generation system. The Air Force had intended to keep DMSP F20 in climate-controlled storage at a Lockheed Martin clean room in Sunnyvale, California, for a time in case it needed to be called up for launch in the coming years,[42] and in the aftermath of the failure of DMSP 5D-3/F19, the USAF was reconsidering the future of DMSP-5D3 F-20. However, in late 2016, the USAF began scrapping DMSP-5D3 F-20.

See also

[edit]
  • NPOESS - the National Polar-orbiting Operational Environmental Satellite System
  • Space debris

References

[edit]
[edit]
Revisions and contributorsEdit on WikipediaRead on Wikipedia

Defense Meteorological Satellite Program

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The Defense Meteorological Satellite Program (DMSP) is a initiative that operates a constellation of polar-orbiting satellites to gather meteorological, oceanographic, and solar-terrestrial environmental data in support of military operations. Launched in the , the program has provided continuous global observations for over five decades, enabling tactical and environmental awareness critical to defense activities. DMSP satellites follow sun-synchronous, near-polar orbits at altitudes of approximately 800 kilometers, completing a full circuit of every 101 minutes and achieving twice-daily global coverage. Key instruments include the Operational Linescan System (OLS), which delivers visible and infrared cloud imagery, alongside sensors for specialized data such as extent, tropospheric winds, and parameters. Managed by the with on-orbit support from the (NOAA), the program has evolved through multiple satellite blocks, from early experimental models to advanced Block 5D configurations incorporating microwave imagers and sounders for enhanced all-weather monitoring. Among its notable contributions, DMSP data has underpinned Department of Defense mission planning by supplying real-time environmental intelligence, while also aiding civilian applications such as NOAA's polar region forecasts and nowcasting. The program's longevity and reliability have facilitated transitions to successor systems like the , ensuring uninterrupted environmental surveillance amid evolving technological and operational demands.

Program Overview

Objectives and Strategic Role

The Defense Meteorological Satellite Program (DMSP) was established to deliver global environmental data via polar-orbiting satellites, focusing on , , atmospheric parameters, and surface conditions essential for Department of Defense (DoD) tactical and strategic operations. This includes supporting routing, ground force maneuvers in varied terrains, and broader military planning where timely directly influences mission success in austere or adversary-controlled regions. Originating as a highly classified initiative in the early 1960s under the —initially tied to reconnaissance support—DMSP transitioned toward partial openness with data declassification in 1972, enabling sharing with civilian entities like the (NOAA) as the empirical utility of its observations extended to non-military forecasting needs, such as polar region coverage. DMSP's strategic role lies in furnishing resilient, space-based independent of vulnerable ground infrastructure, thereby enabling precise decision-making in denied environments; for instance, during the 1991 , its imagery provided the principal data over , informing operations amid sparse terrestrial observations. Sustained since the program's inaugural launch in , DMSP has delivered over five decades of continuous service through successive deployments, affirming its causal contribution to operational superiority.

Orbital Characteristics and Coverage

The Defense Meteorological Satellite Program (DMSP) satellites are deployed in sun-synchronous, near-polar orbits at a nominal altitude of 833 km, with an inclination of 98.9 degrees and an of approximately 101.6 minutes. This orbital regime leverages the precession of the Earth's orbit around the Sun to maintain a consistent local for each pass, optimizing observations under stable lighting conditions derived from the geometry of the satellite's matching the Earth's orbital angular rate. The sun-synchronous configuration, combined with the polar inclination near 99 degrees, enables each satellite to achieve full global coverage twice daily, as the orbital plane's alignment with the results in swaths that collectively image the entire over successive passes. Operational DMSP constellations typically include two satellites: one in a dawn-dusk (equatorial crossings around 6:00 and 18:00 ) and another in a day-night (around 10:00 and 22:00), providing complementary temporal sampling for meteorological phenomena varying diurnally. In contrast to geostationary systems fixed above the , which offer continuous equatorial views but limited polar access due to viewing geometry constraints, DMSP's low-altitude polar orbits ensure reliable over high-latitude regions, polar caps, and open oceans—areas vital for tactical where line-of-sight limitations preclude effective geostationary observation. The 101-minute period facilitates revisit times of roughly 12 hours per location, sufficient for tracking dynamic weather fronts via and payloads that penetrate clouds, yielding all-weather coverage unattainable by purely optical polar satellites like NOAA's with coarser resolution or restricted data access.

Historical Development

Origins in the Cold War Era (1960s)

The Defense Meteorological Satellite Program (DMSP) emerged from Department of Defense requirements to address meteorological limitations in high-resolution photographic reconnaissance during the , particularly after the first successful CORONA imagery in August 1960 revealed the impact of unpredictable on mission efficacy over denied areas like the . Initiated on June 21, 1961, by Director Joseph V. Charyk as an interim effort under Program 417, the program aimed to provide timely data to maximize the return on film-return reconnaissance investments. Early conceptual work drew from studies dating to 1951 and technical evaluations by the Air Force Cambridge Research Laboratories, including Technical Report 154 issued in May 1961, which underscored the feasibility of satellite-based weather reconnaissance for and tactical operations. Block 1 satellites, designated DSAP-1 or P-35, featured a compact 100-pound, 10-sided polyhedron design equipped with a vidicon camera for visible-light cloud imaging across an 800-mile swath at 3-4 nautical mile resolution, enabling assessment of cloud patterns in sun-synchronous polar orbits at approximately 450 nautical miles altitude for near-100% Northern Hemisphere coverage above 60° latitude. The initial launch attempt occurred on May 23, 1962, from Vandenberg Air Force Base using a Scout rocket, but failed due to booster malfunction; the first successful orbit was achieved on August 23, 1962, followed by another on February 19, 1963, yielding the program's initial radio-transmitted imagery for reconnaissance planning. These early missions provided critical support during the Cuban Missile Crisis in October 1962 and nascent Southeast Asia operations, validating the satellites' utility in forecasting clear conditions for strategic bombing runs where ground-based radar proved inadequate due to limited range and resolution. By the February 1963 launch, an infrared radiometer was incorporated for nighttime cloud detection and thermal mapping, enhancing all-weather capabilities. Development faced significant hurdles, including a 40% success rate across five Scout launches between 1962 and 1963, with three failures attributed to vehicle reliability issues, alongside initial ground tracking deficiencies that were mitigated by July 1963 through dedicated Air Force stations in Maine and Washington state. Despite these setbacks, the operational successes generated foundational datasets that empirically demonstrated DMSP's superiority over terrestrial alternatives, offering global synoptic views that informed DoD weather models and improved tactical decision-making in reconnaissance-dependent scenarios. Program management transitioned to Air Force Systems Command on July 1, 1965, solidifying its role in military meteorological support amid escalating Cold War demands.

Iterative Improvements and Block Transitions (1970s-1990s)

The Defense Meteorological Satellite Program underwent significant engineering refinements in the 1970s, transitioning from Block 4 platforms to the more advanced Block 5 series, which incorporated lessons from early operational deployments to enhance sensor performance and data reliability. Block 5 satellites introduced upgraded visible and infrared imagers with improved resolution and stability, addressing limitations in earlier blocks such as inconsistent coverage during high-latitude passes. These iterations prioritized feedback from tactical users, emphasizing durability against radiation and thermal stresses encountered in polar orbits. The declassification of DMSP data in March 1973 enabled broader interagency analysis, including by civilian meteorologists, which validated the need for expanded sensor suites beyond primary cloud imaging. By the late , Block 5D variants integrated initial sounders, such as the SSM/T series, providing all-weather vertical temperature profiles that supported estimation even under persistent —a capability absent in prior optical-only systems. These sounders operated in the 50-60 GHz oxygen absorption band, yielding synoptic-scale data for tropospheric analysis with resolutions sufficient for military forecasting in obscured conditions. Operational evaluations confirmed their utility in mitigating gaps exposed by visible limitations, driving iterative calibrations for accuracy in humid environments. Launch success rates for DMSP missions climbed to 22 out of 25 attempts between and , reflecting matured integration processes and component hardening that elevated on-orbit reliability from earlier blocks' approximate 50-70% benchmarks. In the and , Block 5D evolutions further embedded specialized sensors like the SSJ/4 precipitating and detectors, which measured fluxes from 30 eV to 30 keV across 20 spectral points per second, enabling precise auroral precipitation mapping and ionospheric dynamics tracking. These additions stemmed from demonstrated needs for integration into meteorological datasets, as plasma measurements correlated with disturbances affecting and over-the-horizon targeting. Enhanced operational linescan system (OLS) imagers on these blocks delivered finer spatial detail for cloud type discrimination, informed by combat-zone feedback loops that highlighted causal links between sensor fidelity and mission outcomes, such as in operations requiring robust all-weather inputs. By the , these transitions had solidified Block 5D as the operational standard, with reliability exceeding 90% for sustained missions, underscoring engineering responses to empirical performance data rather than routine upgrades.

Operational Maturity and Phasing (2000s-Present)

By the early , the DMSP constellation had achieved operational maturity, sustaining a fleet of up to five satellites providing near-real-time meteorological data critical for U.S. military operations, including storm tracking and tactical weather support during Operations Iraqi Freedom and Enduring Freedom. These assets delivered visible and from sun-synchronous polar orbits, enabling persistent global coverage that informed mission planning amid dynamic weather conditions in theater. The program's final launch occurred on April 3, 2014, with DMSP F-19 deployed from Vandenberg Air Force Base aboard an rocket, marking the end of new satellite additions as fiscal constraints and transition planning prioritized successor systems. Designed for approximately five-year service lives, many DMSP satellites operated well beyond this threshold, with primary units like F-16 and F-17 exceeding two decades in orbit by the mid-2010s, though progressive degradation in sensor performance and data quality became evident in Department of Defense assessments during the . Phasing out commenced amid these reliability challenges, with initial plans to suspend DMSP data dissemination by July 31, 2025, reflecting the constellation's unsustainable age and the military's shift toward integrated multi-source capabilities. However, pragmatic considerations for and allied needs prompted a reversal in July 2025, extending data sharing through September 2026 to mitigate gaps during hurricane season and ensure continuity until full transition. This adjustment balanced operational imperatives with broader data utility, underscoring the program's enduring role despite its wind-down.

Technical Design and Capabilities

Evolution of Satellite Blocks

The initial blocks of the Defense Meteorological Satellite Program, spanning Blocks 1 through 4 from the early 1960s to late 1960s, employed lightweight cylindrical structures with masses ranging from 100 to 175 pounds, at approximately 12 rpm using magnetic torquing, and lacked redundant systems, yielding empirical operational durations of about 10 months to 2 years. Block 5, developed in the mid-1960s and launched between 1970 and 1976, marked a shift to three-axis stabilization via momentum wheels and magnetic coils, with masses increasing to 230 pounds for Block 5A and 425 pounds for Blocks 5B and 5C; these variants incorporated progressive enhancements such as additional recorders and structural reinforcements, though average lifespans remained around 10 months due to limited redundancy. The Block 5D series, initiated in the early 1970s with launches commencing in 1976, introduced significantly larger platforms weighing 1,150 pounds for 5D-1, escalating to 1,792 pounds in 5D-2 and up to 2,278 pounds in 5D-3, featuring three-axis control with momentum wheels and gyroscopes, deployable solar arrays for power generation, and hydrazine thrusters for orbit maintenance, alongside added redundancy to target extended design lives of 18 months initially, progressing to 5 years by 5D-3.
BlockLaunch PeriodMass (lbs)StabilizationKey Hardware AdvancementsDesign Life Target
1–31962–1966100–160Spin (12 rpm)Basic spin-stabilized bus, no ~1 year
41966–1969175SpinDual vidicon support1–2 years
5A–C1970–1976230–4253-axis (momentum wheel, magnetic coils)Increased mass, structural additions for recorders~10 months avg.
5D-11976–19801,1503-axis addition, precise pointing (0.01°)18 months
5D-21982–19951,7923-axis (wheels, )Enhanced bus size, thruster Extended
5D-3 onward2,2783-axis (wheels, )Further mass increase, improved control systems5 years
These progressions reflected iterative scaling for durability, with consistent solar power reliance and command capabilities across later blocks enabling sustained orbit adjustments via propulsion differences, such as axial hydrazine systems in 5D variants.

Sensors, Payloads, and Data Products

The Operational Linescan System (OLS) serves as the primary visible and imaging sensor across DMSP satellites, capturing global , cloud-top temperatures, and surface features such as snow and ice with a swath width of 3,000 km and twice-daily coverage. Operating in both daytime visible and nighttime low-light modes, OLS detects phenomena like auroras and urban lights through photon-counting techniques, with fine-resolution at approximately 0.56 km and smoothed products at 2.7 km. Infrared channels map temperatures from 190 to 310 K in 256 steps, enabling cloud height estimation via thermal contrasts, though resolution degrades off-nadir. Microwave payloads, including the Special Sensor Microwave Imager (SSM/I) on earlier Block 5D satellites and the upgraded Special Sensor Microwave Imager Sounder (SSMIS) on later units, provide all-weather measurements insensitive to clouds by sensing emission and scattering at frequencies from 19 to 91 GHz. These instruments derive data products such as rain rates (via differential polarization at 19-37 GHz), sea ice concentration (from 19-85 GHz brightness contrasts), cloud liquid water, and total precipitable water, with channel resolutions ranging from 12.5 km (high-frequency) to 69 km (low-frequency). SSMIS's 24 channels, compared to SSM/I's seven, enhance vertical atmospheric profiling of and through layered weighting functions, supporting indirect estimates from low-frequency emissivity variations. The Special Sensor J (SSJ/4) magnetometer and particle detector measures precipitating electron and ion fluxes in the 30 eV to 30 keV range, quantifying auroral particle energies, densities, and velocities for ionospheric specification. Raw sensor data undergo onboard processing and ground segmentation into level-1 brightness temperatures or fluxes, aggregated into 25 km gridded composites for environmental parameters like rainfall accumulation and ice boundaries, feeding numerical models with accuracies tied to radiative transfer inversions (e.g., SSM/I rain retrievals validated against gauges at ~1-2 mm/h RMSE in tropics). DMSP lacks hyperspectral capabilities, relying on broadband filters that preclude detailed trace gas spectroscopy but prioritize robust, low-latency cloud-penetrating observations.

Launch and Mission History

Key Launches by Block

The early phases of the DMSP involved launches of Blocks 1 through 3 from 1962 to 1965, utilizing Scout and vehicles from Vandenberg Air Force Base, with mixed outcomes including multiple initial failures before achieving partial operational successes. Block 1 saw five Scout attempts, yielding two successes at a 40% rate, starting with the first successful launch on , 1962. Subsequent D launches in 1964—on and —deployed two satellites each with 100% success. Thor-Burner I vehicles in 1965 handled six attempts for Blocks 2 and 3, achieving four successes at 66.7%.
BlockKey Launch DatesVehicleSiteSatellites per LaunchOutcome
1Aug 23, 1962 (first success); multiple prior attemptsScoutVandenberg AFB (SLC-5)12 successes from 5 attempts (40%)
1Jan 19, 1964; Jun 17, 1964Thor-Agena DVandenberg AFB2100% success (4 satellites)
2-31965 (6 attempts)Thor-Burner IVandenberg AFB14 successes (66.7%)
Block 5D satellites, designated F-1 through , were launched from 1982 to 2014 primarily on Atlas E (early F series), Titan II, and later vehicles from Vandenberg AFB, marking the program's operational maturity with consistently high reliability. Block 5D-1 had two attempts with one success (95.7% adjusted rate, due to a fourth-stage failure). Block 5D-2 achieved eight successes from eight Atlas E launches (100%). Later variants shifted to Titan II for SLC-4W and , including F-16 on December 12, 1999 (first Block 5D-3), and on April 3, 2014. Across the full program, 44 spacecraft reached orbit successfully out of approximately 50 attempts, yielding about 90% orbital insertion success.
Block VariantKey Launch ExamplesVehicleSiteOutcome
5D-1Jul 15, 1980 (noted ); Aug 29, 1980Thor-Burner II / otherVandenberg AFB (SLC-10W)1 from 2 attempts
5D-2Dec 21, 1982; Nov 18, 1983; up to 8 totalAtlas EVandenberg AFB (SLC-3W)100% (8/8)
5D-3Dec 12, 1999 (F-16); Oct 18, 2009 (F-18); Apr 3, 2014 (F-19)Titan II / Vandenberg AFB (SLC-4W)Successful insertions

Operational Successes and Military Utility

The Defense Meteorological Satellite Program (DMSP) demonstrated significant operational value during the 1991 , where its satellites delivered real-time visual and infrared imagery of sandstorms and precipitation patterns across the , enabling commanders to adjust air operations and mitigate visibility hazards. Over 2,550 DMSP images were analyzed to support tactical forecasting in data-sparse areas, with the program's high-resolution sensors serving as the principal source for weather intelligence over , directly informing mission planning for coalition forces. This capability proved essential for maintaining sortie rates amid dynamic conditions, where timely updates on storm development reduced risks to low-level flights and precision strikes. The DMSP constellation's architecture, featuring multiple polar-orbiting satellites in sun-synchronous paths, achieved four complete global scans daily, ensuring persistent monitoring that minimized temporal gaps in coverage compared to single-satellite systems. Each satellite orbited approximately every 101 minutes, yielding twice-daily global passes per platform, which the coordinated fleet aggregated into higher-frequency updates for operational users. This redundancy provided an empirical advantage over adversaries' weather reconnaissance, which lacked equivalent global, near-real-time resolution during conflicts like the , allowing U.S. forces to sustain decision superiority in austere environments. Beyond tropospheric data, DMSP's space weather sensors delivered auroral precipitation and ionospheric measurements critical for , quantifying charged particle fluxes and electromagnetic disturbances that could degrade early warning radars and over-the-horizon communications. These observations, collected since the 1970s, informed assessments of auroral impacts on high-latitude operations, enhancing reliability of strategic systems by alerting to propagation anomalies in real time. The program's sustained dual-satellite operations thus underpinned layered utility, from tactical weather support to strategic , without reliance on ground-based alternatives vulnerable to denial.

Incidents and Technical Failures

Satellite Explosions and Anomalous Events

The first recorded explosion in the DMSP series occurred with DMSP-F11 on April 21, 2004, when the retired satellite, launched in 1991, underwent a catastrophic breakup in its sun-synchronous orbit at approximately 830 km altitude, generating 56 trackable debris pieces. The assessed cause was a propulsion system anomaly, distinct from later battery-related failures, though exact mechanisms remain tied to post-mission disposal challenges where the satellite was not successfully deorbited. Debris from this event was cataloged and tracked by U.S. space surveillance assets, with no immediate high-risk conjunctions reported, contrasting with controlled deorbits of other DMSP units that avoided fragmentation. A similar post-mission failure struck DMSP-F13 on February 3, 2015, after 20 years of operation; the , intended for safe disposal, exploded due to a fault in its nickel-cadmium battery charging system, producing 43 trackable fragments that persist in orbit for decades. Forensic analysis by investigators identified overcharging leading to and rupture, a vulnerability shared across Block 5D-2 models. The U.S. Space Surveillance Network (later under U.S. ) monitored the field, implementing conjunction assessments that revealed minimal collision risks following orbital maneuvers on operational assets. In October 2016, DMSP-F12, decommissioned since 2008, experienced an analogous battery overcharge , yielding limited including at least one trackable piece, underscoring persistent design flaws in the series' power systems despite prior awareness from the F11 and F13 events. This incident prompted heightened scrutiny but no widespread operational disruptions, as tracked fragments posed low conjunction probabilities compared to intentional atmospheric reentries of other DMSP satellites. More recently, on December 20, 2024, another decommissioned DMSP satellite fragmented in , releasing over 50 pieces in a manner akin to prior battery-induced ruptures, continuing the pattern of unintended kinetic events during end-of-life phases. U.S. tracking confirmed the event's scale but emphasized ongoing mitigation, with decay timelines extending years and negligible immediate threats to active missions after predictive modeling and avoidance actions. These explosions highlight causal links to aging power subsystems rather than external impacts, differentiated from successful deorbits that prevent such outcomes through precise depletion and atmospheric decay.

Failures, Deorbits, and Unreplaced Losses

The DMSP satellite, launched on November 3, 2014, experienced a critical power subsystem failure on February 11, , rendering it uncontrollable as both redundant units lost power, preventing any further commands or data transmission. Unlike prior incidents, no on-orbit spare existed for , forcing operators to reassign the aging F-17 satellite (launched 2006) to primary coverage duties and highlighting DoD's shift in procurement priorities away from DMSP redundancies toward next-generation systems like the Weather System Follow-On. DMSP Block 5D satellites, designed for a nominal operational life of three to five years, routinely operated far beyond specifications due to robust and deferred replacements, with attrition accelerating from cumulative wear on components like batteries and solar arrays. For instance, F-13 functioned over 20 years past its 1995 launch before anomaly-related loss, while F-14 was intentionally deorbited in February 2020 after 22 years of service, its propulsion and attitude control systems degraded from prolonged exposure to orbital and cycling. Since 2000, over ten DMSP platforms have been lost to such non-catastrophic failures or deorbits without direct successors, exacerbating orbital coverage sparsity in the 2020s as the fleet dwindled below sustainable levels. To mitigate unreplaced gaps, the DoD integrated data from NOAA's polar-orbiting satellites, such as NOAA-16 and NOAA-17, as interim measures, though these civilian assets lacked DMSP's specialized microwave imagers and introduced compatibility challenges from differing orbital inclinations and sensor calibrations. This reliance underscored opportunity costs: budgetary emphasis on Electro-Optical/ Weather Systems and other modern constellations over DMSP spares, leaving the program vulnerable to single-point failures without engineered margins for extended lifespans.

Data Applications and Policy Issues

DoD Operational Use and Achievements

The Defense Meteorological Satellite Program (DMSP) furnishes U.S. Department of Defense forces with real-time visible, , and imagery to support tactical , including storm avoidance for naval vessels such as aircraft carriers and delineation of cloud-depleted areas for and targeting. Direct broadcasts to tactical ground stations and ships enable , , , and Marine Corps units to receive data within the satellite's field of view, covering approximately 1,600 nautical miles swath width. Stored imagery is relayed to central processing at or Indo-Pacific sites for dissemination, ensuring secure access in operational theaters. Integration of DMSP products into military command systems facilitates joint operations by providing global weather and data every 14 hours, aiding early warning, long-range communications resilience, and satellite maneuver planning. Post-Cold War adaptations, including advanced sensors like the Special Sensor Microwave Imager/Sounder, extended support to counter-insurgency campaigns through all-weather depictions of cloud patterns, precipitation rates, sea surface winds, and atmospheric profiles in contested environments. Key achievements encompass five decades of continuous operational service since 1963, establishing DMSP as the longest-running U.S. constellation and delivering environmental intelligence that has underpinned strategic superiority across diverse conflicts. The program's capabilities, operational on satellites like F-16 through F-18, have provided persistent denied-area observations, with after-action analyses crediting enhanced forecasting for minimized disruptions in high-stakes missions. Transition continuity is evidenced by the May 2025 operational acceptance of the ML-1A Weather System Follow-on – Microwave satellite, which augments legacy DMSP functions for sustained DoD meteorological dominance.

Civilian Data Sharing and Scientific Impact

In December 1972, the U.S. Department of Defense declassified DMSP visible and imagery, enabling dissemination to civilian meteorological agencies and scientific researchers while maintaining military data as primary for operational forecasting. This partial release facilitated integration into non-defense models, though access remained limited to declassified subsets, with full datasets prioritized for DoD users. By the 1990s, NOAA gained routine access to DMSP microwave imagery from the Special Sensor Microwave Imager (SSM/I) on Block 5D satellites, launched starting in , which penetrated to reveal hurricane eyewall structures and precipitation patterns invisible to conventional infrared sensors. This data incrementally improved civilian intensity forecasts, contributing to products like the Hurricane Satellite (HURSAT) archive, where SSM/I scans formed a key component of historical analyses from 1987 onward. However, such enhancements were supplementary, as DMSP's core design emphasized real-time requirements over civilian optimization. DMSP ionospheric measurements from the Special Sensor J (SSJ/4) and Ionospheric Plasma Scintillation (SSIES) instruments supported civilian research, including studies of irregularities affecting GPS signal reliability and scintillation events. Global datasets, spanning plasma drifts, auroral precipitation, and geomagnetic disturbances, have been archived at NOAA's National Centers for Environmental (NCEI) since declassification, enabling peer-reviewed analyses of solar-terrestrial interactions with over 40 years of polar-orbiting observations. These contributions aided modeling of ionospheric variations, but remained secondary to DoD applications in and resilience.

Controversies Over Access and Reliability

In June 2025, the U.S. Navy announced plans to suspend dissemination of Defense Meteorological Satellite Program (DMSP) data to civilian entities, including the National Oceanic and Atmospheric Administration (NOAA), effective June 30, 2025, citing the program's obsolescence, cybersecurity vulnerabilities, and incompatibility with modern information technology standards. This decision stemmed from the aging DMSP constellation's inability to meet DoD's operational security requirements, as the satellites, operational since the 1980s and 1990s, lacked robust protections against potential exploitation by adversaries. The initial cutoff raised alarms among meteorologists, who warned of degraded hurricane forecasting accuracy during the active 2025 Atlantic season, particularly for microwave imagery essential for tracking storm structures over oceans where ground observations are sparse. Facing pushback from communities dependent on DMSP for supplementary products like special microwave imager (SSMI) outputs, the reversed course on July 31, 2025, extending sharing through fall 2026 to mitigate risks during peak hurricane activity. This delay acknowledged short-term civilian reliance but underscored DoD's primary authority over the system, funded exclusively through military budgets without mandated public access obligations. Critics, including operational meteorologists, argued that abrupt termination could exacerbate existing intermittency from DMSP dropouts and degradation, potentially inflating forecast errors by 10-20% in intensity estimates during data voids. However, DoD officials countered that such gaps, while empirically verifiable from orbital anomalies, were often overstated relative to redundant capabilities from NOAA's polar-orbiting satellites and the newly operational System Follow-on Microwave (WSF-M) platform. The WSF-M1 satellite, launched April 11, 2024, and achieving operational acceptance in April 2025, delivers enhanced microwave resolution for atmospheric profiling, surpassing DMSP's capabilities in monitoring and mapping, thereby justifying the transition without compromising military priorities. DoD emphasized that remains a discretionary , not an entitlement, as DMSP was designed for tactical weather support in defense operations, such as and , where favors warfighter needs over public dissemination. This friction highlights broader tensions: while intermittent DMSP reliability—evidenced by increasing data voids reported by in 2025—poses verifiable challenges, claims of existential forecasting crises overlook the voluntary nature of interagency partnerships and the DoD's fiscal rationale for prioritizing secure, successor systems like WSF-M over indefinite maintenance of legacy assets.

Legacy and Transition

Long-Term Contributions to Weather Forecasting

The Defense Meteorological Satellite Program (DMSP) established polar-orbiting microwave remote sensing as a cornerstone of operational , with the Special Sensor Microwave Imager (SSM/I) introduced on Block 5D satellites in July 1987 providing cloud-penetrating observations of atmospheric , , and surface conditions. This capability enabled consistent global coverage twice daily, independent of solar illumination or cloud cover, which addressed limitations in earlier visible and systems and informed the development of techniques in models. Over five decades from its inception in the early , DMSP's datasets have served as empirical benchmarks for establishing climate variability baselines, particularly in polar regions and oceanic patterns where ground validation is sparse. DMSP's SSM/I-derived products advanced global precipitation mapping by delivering quantitative estimates of rainfall rates and totals, enhancing forecast accuracy for tropical cyclones and monsoons through integration with sparse gauge networks. This military-civilian data hybrid—initially prioritized for tactical but declassified for broader use—contributed to verifiable improvements in detection over land and sea, with studies showing reduced systematic biases in derived hydrological variables when calibrated against SSM/I brightness temperatures. The program's longevity, spanning multiple blocks with overlapping orbits, ensured data continuity that underpinned long-term trend analyses, despite initial classification delays limiting peer-reviewed validation until the 1990s. Cost-effective design and operational resilience allowed DMSP to maintain high uptime across 20+ launches, yielding terabytes of archived data that remain referenced in baseline climatologies for extent and storm tracking. While secrecy constrained early academic scrutiny, the empirical utility of these records—evidenced by their incorporation into global reanalysis products—demonstrated causal efficacy in refining rates, with microwave-derived inputs correlating to multi-decadal reductions in model uncertainties for mid-latitude weather systems.

Challenges, Criticisms, and Successor Systems

The aging DMSP constellation, comprising primarily Block 5D satellites launched between 1982 and 2009, encountered mounting reliability issues in the 2010s and 2020s, including multiple on-orbit explosions and failures that reduced operational redundancy. This dependence on decades-old technology, exacerbated by the 2010 cancellation of the joint National Polar-orbiting Operational Environmental Satellite System (NPOESS)—which redirected budgets toward separate civilian and military paths—delayed the development of dedicated DoD replacements and heightened risks of observational gaps in critical microwave and infrared data for tactical weather support. Critics, including meteorologists and scientists, highlighted potential disruptions from DoD's planned termination of DMSP data processing and dissemination in mid-2025, arguing it could impair hurricane intensity tracking and forecasts during peak seasons, given the program's unique contributions to microwave-derived all-weather imagery. These concerns prompted congressional and interagency pressure, leading to a reversal where the Navy extended data sharing with NOAA until at least 2026, averting immediate shortfalls while underscoring acquisition inertia in transitioning from legacy systems. The primary successor, the Weather System Follow-on Microwave (WSF-M) program, aims to restore and enhance DMSP's microwave capabilities, with the first satellite (ML-1A) launching on April 11, 2024, via and achieving operational acceptance by the U.S. in April 2025. WSF-M satellites feature advanced microwave imagers (MWI) superior to DMSP's Special Sensor Microwave Imager/Sounder (SSMIS) for sea surface conditions, tropical cyclone intensity, and all-weather analysis, though full constellation coverage lags due to the second satellite's planned 2028 launch and ongoing calibration challenges in replicating DMSP's historical data continuity. DoD's phased DMSP decommissioning, targeted for completion by late 2026, incorporates pragmatic mitigations such as leveraging remaining operational DMSP assets (e.g., F17 and F18) for overlap and exploring commercial satellite data to bridge gaps, prioritizing resilient upgrades over exaggerated narratives of . A complementary Electro-Optical on other platforms is under evaluation to fully supplant DMSP's visible/ sensors by 2027, ensuring sustained environmental amid fiscal constraints.

References

  1. https://www.spaceforce.mil/About-Us/Fact-Sheets/Article/2197779/defense-meteorological-satellite-program/
  2. https://www.ncei.noaa.gov/products/satellite/defense-meteorological-satellite-program
  3. https://ghrc.nsstc.nasa.gov/uso/source_docs/dmsp_f12.html
  4. https://heasarc.gsfc.nasa.gov/docs/heasarc/missions/dmsp.html
  5. https://catalog.data.gov/dataset/defense-meteorological-satellite-program-dmsp
  6. https://www.nesdis.noaa.gov/our-satellites/currently-flying/defense-meteorological-satellite-program
  7. https://www.ospo.noaa.gov/operations/dmsp/index.html
  8. https://www.eoportal.org/satellite-missions/dmsp-block-5d
  9. https://www.military.com/equipment/defense-meteorological-satellite-program
  10. https://www.gulflink.osd.mil/declassdocs/af/19961205/120596_aacxh_03.html
  11. https://www.americansecurityproject.org/maintaining-a-functional-meteorological-satellite-program-for-national-defense/
  12. https://apps.dtic.mil/sti/tr/pdf/ADA350587.pdf
  13. https://www.airweaassn.org/reports/prog-hist-02.pdf
  14. https://spacenews.com/climate-monitoring-1962-present-dmsp-satellites-still-aiding-us-military/
  15. https://www.class.noaa.gov/data_available/dmsp/index.htm
  16. https://www.forecastinternational.com/archive/disp_pdf.cfm?DACH_RECNO=572
  17. https://apps.dtic.mil/sti/tr/pdf/ADA157080.pdf
  18. https://www.af.mil/News/Article-Display/Article/475221/defense-meteorological-satellite-program-flight-19-launch/
  19. https://spaceflightnow.com/2016/03/07/engineers-lose-control-of-us-military-weather-satellite/
  20. https://spacenews.com/as-military-weather-satellites-near-end-of-life-dod-turns-to-partners-for-data/
  21. https://www.ospo.noaa.gov/data/messages/2025/07/MSG_20250701_1815.html
  22. https://www.defensenews.com/news/your-military/2025/07/31/in-reversal-navy-will-share-satellite-data-with-noaa-until-fall-2026/
  23. https://abcnews.go.com/US/defense-department-continue-providing-critical-weather-satellite-data/story?id=124211197
  24. https://www.thespacereview.com/article/4412/1
  25. https://space.skyrocket.de/doc_sdat/dmsp-5d1.htm
  26. https://ghrc.nsstc.nasa.gov/uso/source_docs/dmsp_f8.html
  27. https://catalog.data.gov/dataset/dmsp-ols-operational-linescan-system
  28. https://www.earthdata.nasa.gov/data/instruments/ssmis
  29. https://www.ncei.noaa.gov/products/ssmi-hydrological
  30. https://catalog.data.gov/dataset/defense-meteorological-satellite-program-dmsp-special-sensor-microwave-imager-ssm-i-level-3-map1
  31. https://rain.atmos.colostate.edu/FCDR/doc_other/SSMI_general/DMSP_Processing_Guide_Mar92.pdf
  32. https://investors.lockheedmartin.com/news-releases/news-release-details/lockheed-martin-built-titan-ii-successfully-launches-military
  33. https://spacenews.com/atlas-5-lofts-dmsp-satellite-orbit/
  34. https://apps.dtic.mil/sti/tr/pdf/ADA248571.pdf
  35. https://www.newscientist.com/article/mg13117794-900/
  36. https://nsarchive2.gwu.edu/NSAEBB/NSAEBB39/document10.pdf
  37. https://www.airandspaceforces.com/weapons/dmsp/
  38. http://weebau.com/satellite/D/dmsp_39.htm
  39. https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2016JA023339
  40. https://pmc.ncbi.nlm.nih.gov/articles/PMC5619259/
  41. https://spacenews.com/20-year-old-military-weather-satellite-wasnt-first-of-its-kind-to-explode/
  42. https://www.ap7am.com/en/8912/us-military-satellite-explodes-in-space
  43. https://www.space.com/29996-us-military-satellite-explosion-dmspf13-cause.html
  44. https://spaceflightnow.com/2015/07/24/dmsp-satellites-break-up-linked-to-battery-failure/
  45. https://spacenews.com/dmsp-f13-debris-to-stay-on-orbit-for-decades/
  46. https://spacenews.com/retired-military-weather-satellite-breaks-up/
  47. https://forum.nasaspaceflight.com/index.php?topic=41508.0
  48. https://spacenews.com/u-s-air-force-blames-power-failure-for-loss-of-dmsp-f19-weather-satellite/
  49. https://www.petersonschriever.spaceforce.mil/Newsroom/Press-Releases/Display/Article/2901067/satellite-transmissions-cease-no-impact-to-weather-mission/
  50. https://spaceflightnow.com/2016/03/30/air-force-ends-effort-to-recover-dmsp-weather-satellite/
  51. https://spacenews.com/a-race-against-time-to-replace-aging-military-weather-satellites/
  52. https://news.lockheedmartin.com/2008-11-06-Military-Weather-Satellite-Built-by-Lockheed-Martin-Achieves-Five-Years-on-Orbit-Exceeding-Design-Life
  53. https://www.losangeles.spaceforce.mil/News/Article-Display/Article/2089853/dmsp-satellite-decommissioned-after-22-years-of-service-weather-systems-follow/
  54. https://www.americaspace.com/2015/03/09/air-force-weather-satellite-space-debris-hazard-a-concern/
  55. https://www.lockheedmartin.com/en-us/news/features/history/dmsp.html
  56. https://www.losangeles.spaceforce.mil/News/Article-Display/Article/343833/50-years-of-space-based-military-weather-satellite-systems-marked/
  57. https://www.doncio.navy.mil/chips/ArticleDetails.aspx?ID=19254
  58. https://www.spaceforce.mil/News/Article-Display/Article/4165122/first-ussf-wsf-m-satellite-reaches-operational-acceptance-advances-space-based/
  59. https://pubs.usgs.gov/publication/cir1552/full
  60. https://www.ncei.noaa.gov/products/hurricane-satellite-data
  61. https://www.ncei.noaa.gov/products/dmsp-ion-electron-scintillation
  62. https://www.sciencedirect.com/topics/earth-and-planetary-sciences/dmsp-satellite
  63. https://www.ospo.noaa.gov/data/messages/2025/06/MSG_20250625_1735.html
  64. https://michaelrlowry.substack.com/p/navy-set-to-unplug-critical-hurricane
  65. https://www.facebook.com/MeteorologistSteveBrowne/posts/there-is-a-misleading-media-story-circulating-that-the-government-is-shutting-do/1283461639836712/
  66. https://san.com/cc/hurricane-experts-express-concern-over-satellite-data-loss-impacting-forecasts/
  67. https://www.youtube.com/watch?v=nOKeQT8MPX8
  68. https://www.militarytimes.com/news/your-military/2025/07/31/in-reversal-navy-will-share-satellite-data-with-noaa-until-fall-2026/
  69. https://subscriber.politicopro.com/article/eenews/2025/07/30/pentagon-will-keep-sharing-hurricane-forecasting-data-00484868
  70. https://subscriber.politicopro.com/article/eenews/2025/10/15/scientists-report-growing-problems-with-defense-department-weather-data-00603057
  71. https://balancedweather.substack.com/p/update-critical-satellite-data-abruptly
  72. https://www.americaspace.com/2024/04/11/spacex-launches-next-generation-environmental-monitoring-satellite-to-orbit/
  73. https://www.ssc.spaceforce.mil/Newsroom/Article/4165711/ussf-advances-weather-monitoring-with-operational-acceptance-and-initial-operat
  74. https://www.spoc.spaceforce.mil/News/Article-Display/Article/4165122/first-ussf-wsf-m-satellite-reaches-operational-acceptance-advances-space-based
  75. https://gpm.nasa.gov/resources/documents/impacts-transition-dmsp-ssmis-wsf-m-mwi-imerg
  76. https://www.ncei.noaa.gov/products/dmsp-microwave-imager
  77. https://journals.ametsoc.org/view/journals/apme/49/3/2009jamc2314.1.xml
  78. https://www.dvidshub.net/video/917412/functions-wsf-m-replacing-legacy-dmsp-constellation
  79. https://www.eenews.net/articles/scientists-report-growing-problems-with-pentagon-weather-data/
  80. https://www.pbs.org/newshour/science/why-forecasters-are-concerned-about-losing-3-key-satellites-ahead-of-peak-hurricane-season
  81. https://www.dvidshub.net/video/918801/ussf-wsf-m-launches-vsfb-april-11-2024
  82. https://www.meritalk.com/articles/dod-cutting-off-weather-satellite-data-by-end-of-july/
  83. https://www.earthdata.nasa.gov/data/alerts-outages/status-update-dmsp-data-products
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