Encyclopedia Astronautica
Microsat


American military communications satellite. 7 launches, 1991.07.17 (Microsat 1) to (Microsat 7). Satellites used in a DARPA test of an LEO quick-reaction network for global communications.

The Microsats were of a one-of-a-kind design by Defense Systems Incorporated (DSI) for DARPA. Ray Crough was the Project Manager at DARPA for these "seven dwarfs". DSI was run by Dr. George Sebastian and Jason O'Neill and was eventually sold to Wireless Communications in 1994 for $6.6 million.

Gross mass: 22 kg (48 lb).
First Launch: 1991.07.17.
Number: 7 .

More... - Chronology...


Associated Countries
See also
  • Pegasus Privately-funded, air-launched winged light satellite launcher. More...

Associated Launch Vehicles
  • Molniya 8K78M Russian orbital launch vehicle. Improved Molniya, in variants with Blocks ML, 2BL, or SO-L third stages according to payload. More...
  • Pegasus American air-launched orbital launch vehicle. Privately-funded, air-launched winged light satellite launcher. More...
  • Pegasus/HAPS American air-launched orbital launch vehicle. Five stage version consisting of 1 x NB-52 + 1 x Orion 50S + 1 x Orion 50 + 1 x Orion 38 + 1 x HAPS More...

Associated Manufacturers and Agencies
  • DARPA American agency overseeing development of rockets and spacecraft. Defense Advanced Research Projects Agency (formerly ARPA), USA. More...

Bibliography
  • McDowell, Jonathan, Jonathan's Space Home Page (launch records), Harvard University, 1997-present. Web Address when accessed: here.
  • JPL Mission and Spacecraft Library, Jet Propulsion Laboratory, 1997. Web Address when accessed: here.

Associated Launch Sites
  • Point Arguello WADZ Air-launched rocket drop zone known to have been used for 28 launches from 1990 to 2007, reaching up to 4539 kilometers altitude. More...

Microsat Chronology


1991 July 17 - . 17:33 GMT - . Launch Site: Point Arguello WADZ. Launch Pad: 36.0 N x 123.0 W. Launch Platform: NB-52 008. LV Family: Pegasus. Launch Vehicle: Pegasus/HAPS. LV Configuration: Pegasus/HAPS 002/F2. Failed Stage: G.
  • Microsat 1 - . Payload: Microsat 1 / ... / Microsat 7. Mass: 22 kg (48 lb). Nation: USA. Agency: DARPA. Class: Technology. Type: Communications technology satellite. Spacecraft: Microsat. Decay Date: 1992-01-23 . USAF Sat Cat: 21580 . COSPAR: 1991-051A. Apogee: 454 km (282 mi). Perigee: 356 km (221 mi). Inclination: 82.0000 deg. Period: 92.70 min. Summary: Test of LEO network for global communications..
  • Microsat 2 - . Mass: 22 kg (48 lb). Nation: USA. Agency: DARPA. Class: Technology. Type: Communications technology satellite. Spacecraft: Microsat. Decay Date: 1992-01-23 . USAF Sat Cat: 21581 . COSPAR: 1991-051B. Apogee: 454 km (282 mi). Perigee: 355 km (220 mi). Inclination: 82.0000 deg. Period: 92.70 min. Summary: Test of LEO network for global communications..
  • Microsat 3 - . Mass: 22 kg (48 lb). Nation: USA. Agency: DARPA. Class: Technology. Type: Communications technology satellite. Spacecraft: Microsat. Decay Date: 1992-01-24 . USAF Sat Cat: 21582 . COSPAR: 1991-051C. Apogee: 454 km (282 mi). Perigee: 355 km (220 mi). Inclination: 82.0000 deg. Period: 92.70 min. Summary: Test of LEO network for global communications..
  • Microsat 4 - . Mass: 22 kg (48 lb). Nation: USA. Agency: DARPA. Class: Technology. Type: Communications technology satellite. Spacecraft: Microsat. Decay Date: 1992-01-23 . USAF Sat Cat: 21583 . COSPAR: 1991-051D. Apogee: 454 km (282 mi). Perigee: 355 km (220 mi). Inclination: 82.0000 deg. Period: 92.70 min. Summary: Test of LEO network for global communications..
  • Microsat 5 - . Mass: 22 kg (48 lb). Nation: USA. Agency: DARPA. Class: Technology. Type: Communications technology satellite. Spacecraft: Microsat. Decay Date: 1992-01-24 . USAF Sat Cat: 21584 . COSPAR: 1991-051E. Apogee: 455 km (282 mi). Perigee: 355 km (220 mi). Inclination: 82.0000 deg. Period: 92.70 min. Summary: Test of LEO network for global communications..
  • Microsat 6 - . Mass: 22 kg (48 lb). Nation: USA. Agency: DARPA. Class: Technology. Type: Communications technology satellite. Spacecraft: Microsat. Decay Date: 1992-01-25 . USAF Sat Cat: 21585 . COSPAR: 1991-051F. Apogee: 454 km (282 mi). Perigee: 355 km (220 mi). Inclination: 82.0000 deg. Period: 92.70 min. Summary: Test of LEO network for global communications..
  • Microsat 7 - . Mass: 22 kg (48 lb). Nation: USA. Agency: DARPA. Class: Technology. Type: Communications technology satellite. Spacecraft: Microsat. Decay Date: 1992-01-23 . USAF Sat Cat: 21586 . COSPAR: 1991-051G. Apogee: 452 km (280 mi). Perigee: 358 km (222 mi). Inclination: 82.0000 deg. Period: 92.70 min. Summary: Test of LEO network for global communications..

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