Discoverer 19

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Discoverer 19
Mission type Technology
Operator US Air Force/ARPA
Harvard designation 1960 Tau 1
Spacecraft properties
Bus Agena-B
Manufacturer Lockheed
Launch mass 1,060 kilograms (2,340 lb)
Start of mission
Launch date 20 December 1960, 20:32 (1960-12-20UTC20:32Z) UTC
Rocket Thor DM-21 Agena-B 258
Launch site Vandenberg LC-75-3-5
End of mission
Decay date 23 January 1961 (1961-01-24)
Orbital parameters
Reference system Geocentric
Regime Low Earth
Perigee 206 kilometers (128 mi)
Apogee 578 kilometers (359 mi)
Inclination 83.4 degrees
Period 92.4 minutes
The launch of Discoverer 19

Discoverer 19, also known as RM-1, was an American satellite which was launched in 1960. It was a technology demonstration spacecraft, based around an Agena-B.[1]

The launch of Discoverer 19 occurred at 20:32 UTC on 20 December 1960. A Thor DM-21 Agena-B rocket was used, flying from Launch Complex 75-3-5 at the Vandenberg Air Force Base.[2] Upon successfully reaching orbit, it was assigned the Harvard designation 1960 Tau 1.

Discoverer 19 was operated in a low Earth orbit, with a perigee of 206 kilometres (128 mi), an apogee of 578 kilometres (359 mi), 83.4 degrees of inclination, and a period of 92.4 minutes.[3] The satellite had a mass of 1,060 kilograms (2,340 lb),[4] and was used to demonstrate technology for the Midas programme,[5] including infrared sensors.[4] It remained in orbit until 23 January 1961,[3] when it decayed and reentered the atmosphere.


References[edit]

  1. ^ Krebs, Gunter. "RM 1, 2 (Discoverer 19, 21)". Gunter's Space Page. Retrieved 30 June 2010. 
  2. ^ McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 30 June 2010. 
  3. ^ a b McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 30 June 2010. 
  4. ^ a b Wade, Mark. "Midas". Encyclopedia Astronautica. Retrieved 30 June 2010. 
  5. ^ "Discoverer 19". NSSDC Master Catalog. NASA. Retrieved 30 June 2010.