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An Entity of Type : https://gcmdservices.gsfc.nasa.gov/kms/concept/, within Data Space : foodie-cloud.org, foodie-cloud.org associated with source document(s)

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  • DMSP 5D-2/F12 (en)
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  • 2016-06-09 10:35:21.0 [epneff] added altLabel insert AltLabel (id: null text: DMSP-F12 language code: en);
definition
  • [Source: National Space Science Data Center, http://nssdc.gsfc.nasa.gov/nmc/spacecraftDisplay.do?id=1994-057A ] DMSP 5D-2/F12, also known as USA 106, is one of a series of meteorological satellites developed and operated by the Air Force under the Defense Meteorological Satellite Program (DMSP). This program, previously known as DAPP (Data Acquisition and Processing Program), was classified until March 1973. The objective of this program is to provide global visual and infrared cloudcover data and specialized environmental data to support Department of Defense operational weather analysis and forecasting requirements. Operationally, the program consists of two satellites in sun-synchronous polar orbits, with the ascending node of one satellite in early morning and the other at local noon. The 6.4-m-long spacecraft is separated into four sections: (1) a precision mounting platform for sensors and equipment requiring precise alignment; (2) an equipment support module containing the electronics, reaction wheels, and some meteorological sensors; (3) a reaction control equipment support structure containing the third-stage rocket motor and supporting the ascent phase reaction control equipment; and (4) a 9.29-sq-m solar cell panel. The spacecraft stabilization is controlled by a combination flywheel and magnetic control coil system so that sensors are maintained in the desired earth-looking mode. One feature is the precision-pointing accuracy of the primary imager to 0.01 deg provided by a star sensor and an updated ephemeris navigation system. This allows automatic geographical mapping of the digital imagery to the nearest picture element. The operational linescan system is the primary data acquisition system and provides real-time or stored, multi-orbit, day-and-night, visual and infrared imagery of clouds. A supplementary sensor package contains: (1) a microwave imager; (2) a microwave temperature sounder; (3) a microwave water vapor profiler; (4) an ion and electron scintillation monitor; (5) a precipitating electron/ion spectrometer; (6) a gamma/X-ray detector, and (7) a magnetometer. Data are transmitted to ground receiving sites by two redundant S-band transmitters. Real-time data are received at tactical sites world-wide. Recorded data are transmitted to and processed by the Air Force Global Weather Central (AFGWC), Offutt AFB, Nebraska, and the Fleet Numerical Meteorology and Oceanography Center (FNMOC), Monterey, California. Both AFGWC and FNMOC relay the SSM/I, SSM/T, and SSM/T2 data to the National Environmental Satellite Data and Information System (NESDIS). AFGWC also sends the entire data stream to the National Geophysical Data Center, Boulder, Colorado. Additional information concerning can be found in the report by D. A. Nichols, "The Defense Meteorological Satellite Program," Optical Engineering, v. 14, n. 4, p. 273, July-August 1975. Group: Platform_Details Entry_ID: DMSP 5D-2/F12 Group: Platform_Identification Platform_Category: Earth Observation Satellites Platform_Series_or_Entity: DMSP (Defense Meteorological Satellite Program) Short_Name: DMSP 5D-2/F12 Long_Name: Defense Meteorological Satellite Program-F12 End_Group Group: Synonymous_Platform_Names Short_Name: DMSP-F12 Short_Name: USA 106 Short_Name: 23233 End_Group Group: Platform_Associated_Instruments Short_Name: SSM Short_Name: SSM/T-2 Short_Name: SSB/X2 Short_Name: SSM/I Short_Name: SSJ/4 Short_Name: OLS Short_Name: SSM/T Short_Name: SSI/ES2 End_Group Online_Resource: http://nssdc.gsfc.nasa.gov/nmc/spacecraftDisplay.do?id=1994-057A 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: 1994-08-29 Primary_Sponsor: Department of Defense-Department of the Air Force (United States) End_Group End_Group (en)
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  • DMSP-F12 (en)
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