DMSP Block 5C

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Other Designations: Defense Meteorological Satellite Program. Class: Earth. Type: Weather. Destination: Sun Synchronous Orbit. Nation: USA. Agency: U.S. Air Force.

Defense Meteorological Satellite Program.

Typical orbit: 624 km circular orbit, 98.8 deg inclination. Mass: 188 kg (414 lb).

DMSP Block 5C Chronology

1974 August 9 - DMSP-Block-5C F1 - Program: DMSP. Launch Site: Vandenberg. Launch Complex: SLC10W. Launch Vehicle: Delta. Mass: 195 kg (429 lb). Perigee: 779 km (484 mi). Apogee: 844 km (524 mi). Inclination: 98.80 deg. Period: 101.10 min.
Defense Meteorological Satellite Program.

1975 May 24 - DMSP-Block-5C F2 - Program: DMSP. Launch Site: Vandenberg. Launch Complex: SLC10W. Launch Vehicle: Delta. Mass: 194 kg (427 lb). Perigee: 794 km (493 mi). Apogee: 880 km (540 mi). Inclination: 98.70 deg. Period: 101.70 min.
Defense Meteorological Satellite Program.

1976 February 19 - DMSP-Block-5C F3 - Program: DMSP. Launch Site: Vandenberg. Launch Complex: SLC10W. Launch Vehicle: Delta. FAILURE: Early booster cut-off due to incorrect calculation of the Thor fuel load. Mass: 175 kg (385 lb). Perigee: 89 km (55 mi). Apogee: 361 km (224 mi). Inclination: 98.90 deg. Period: 88.90 min.
Defense Meteorological Satellite Program; unusable orbit. Last of the Thor Burner missions.

Bibliography:

McDowell, Jonathan, Jonathan's Space Home Page (launch records), Harvard University, 1997-present. Web Address when accessed: http://www.planet4589.org/jsr.html.
JPL Mission and Spacecraft Library, Jet Propulsion Laboratory, 1997. Web Address when accessed: http://msl.jpl.nasa.gov/home.html.
McDowell, Jonathan, Launch Log, October 1998. Web Address when accessed: http://hea-www.harvard.edu/~jcm/space/log/launch.html.

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