| definition
| - [Source: National Space Science Data Center, http://nssdc.gsfc.nasa.gov/nmc/spacecraftDisplay.do?id=1972-089A ]
DMSP (72-089A), also known as DMSP 6530, was one of a series of meteorological satellites developed and operated by the Air Force under the Defense Meteorological Satellite Program. The program, previously known as Data Acquisition and Processing Program (DAPP), was classified until March 1973. The objective of this program was to provide global visual and infrared (IR) cloudcover data and specialized environmental data to support Department of Defense requirements. Operationally, the program consisted of two satellites in 830 km sun-synchronous polar orbits, with the ascending node of one satellite near the sunrise terminator and the other near local noon. The satellite, shaped like the frustum of a polyhedron, consisted of four subassemblies -- (1) a solar array hat, (2) a base-plate assembly, (3) a sensor AVE (Aerospace Vehicle Electronics) package (SAP), and (4) a data processing system. The primary sensor (SAP) was a four channel scanning radiometer. Secondary sensors included a vertical temperature profile radiometer (supplementary sensor E -SSE) and an electron spectrograph (supplementary sensor J/2 - SSJ/2), which were mounted, along with the primary sensor, on the base-plate assembly. Spacecraft stabilization was controlled by a combination flywheel and magnetic control coil system so that the sensors were maintained in the desired earth-looking mode. The data processing system included three tape recorders capable of storing a total of 440 min of data, which allowed full global coverage twice daily. Either recorded or real-time data were transmitted to ground receiving sites via an s-band transmitter. Recorded data were read out to tracking sites located at Fairchild AFB, Wa, and Loring AFB, ME, and relayed to Air Force Global Weather Central, Offutt AFB, NE. Real-time data were read out a mobile tactical sites located around the world.
Group: Platform_Details
Entry_ID: DMSP 5B/F3
Group: Platform_Identification
Platform_Category: Earth Observation Satellites
Platform_Series_or_Entity: DMSP (Defense Meteorological Satellite Program)
Short_Name: DMSP 5B/F3
Long_Name: Defense Meteorological Satellite Program-F3
End_Group
Group: Synonymous_Platform_Names
Short_Name: DMSP 6530
Short_Name: 06275
End_Group
Group: Platform_Associated_Instruments
Short_Name: SSJ
Short_Name: VTPR
Short_Name: SR
End_Group
Group: Orbit
Orbit_Inclination: 98.7°
Period: 101.8 minutes
Perigee: 813.0 km
Apogee: 872.0 km
Orbit_Type: LEO > Low Earth Orbit > Polar Sun-Synchronous
End_Group
Online_Resource http://nssdc.gsfc.nasa.gov/nmc/spacecraftDisplay.do?id=1972-089A Online_Resource http://heasarc.gsfc.nasa.gov/docs/heasarc/missions/dmsp.html Online_Resource http://www.ngdc.noaa.gov/dmsp/index.html Group: Platform_Logistics
Launch_Date: 1972-11-09
Launch_Site: Vandenberg Air Force Base, USA
Primary_Sponsor: Department of Defense-Department of the Air Force (United States)
End_Group
End_Group (en)
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