|Mission type||Optical reconnaissance|
|Operator||US Air Force/NRO|
|Mission duration||Failed to orbit|
|Spacecraft type||KH-3 Corona'''|
|Launch mass||1,150 kilograms (2,540 lb)|
|Start of mission|
|Launch date||23 October 1961, 19:23UTC|
|Rocket||Thor DM-21 Agena-B 329|
|Launch site||Vandenberg LC-75-3-5|
The launch of Discoverer 33 occurred at 19:23 UTC on 23 October 1961. A Thor DM-21 Agena-B rocket was used, flying from Launch Complex 75-3-5 at the Vandenberg Air Force Base. The launch ended in failure after the Agena suffered a hydraulics system malfunction that led to premature main engine shutdown.
Discoverer 33 was intended to have operated in a low Earth orbit. It had a mass of 1,150 kilograms (2,540 lb), and was equipped with a panoramic camera with a focal length of 61 centimetres (24 in), which had a maximum resolution of 7.6 metres (25 ft). It would have recorded images onto 70-millimeter (2.8 in) film, and returned this in a Satellite Recovery Vehicle at the end of its mission. The Satellite Recovery Vehicle carried by Discoverer 33 was SRV-553.
- Krebs, Gunter. "KH-3 Corona". Gunter's Space Page. Retrieved 30 June 2010.
- McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 30 June 2010.
- Lindborg, Christina; Pike, John (9 September 2000). "KH-3 Corona". Federation of American Scientists. Retrieved 30 June 2010.
- Wade, Mark. "KH-3". Encyclopedia Astronautica. Retrieved 30 June 2010.
- "Corona". Mission and Spacecraft Library. NASA. Retrieved 30 June 2010.
|This article about one or more spacecraft of the United States is a stub. You can help Wikipedia by expanding it.|