OAO 3 (COPERNICUS)

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OAO 3 (COPERNICUS) is classified as:

Brightest

NORAD ID: 6153

Int'l Code: 1972-065A

Perigee: 696.8 km

Apogee: 705.5 km

Inclination: 35.0 °

Period: 98.6 minutes

Semi major axis: 7072 km

RCS: 6.8136 m² (large)

Launch date: August 21, 1972
Source: United States (US)
Launch site: AIR FORCE EASTERN TEST RANGE (AFETR)

This mission was the third in the OAO program and its second successful spacecraft to observe the celestial sphere from above the Earth's atmosphere. A UV telescope with a spectrometer measured high-resolution spectra of stars, galaxies, and planets with the main emphasis on the determination of interstellar absorption lines. Three X-ray telescopes and a collimated proportional counter provided measurements of celestial X-ray sources and interstellar absorption between 1 and 100 A.

1 06153U 72065A   25199.44089059  .00000225  00000-0  50724-4 0  9991
2 06153  35.0040 191.6409 0006171  41.0131 120.9433 14.59739266811941

Source of the keplerian elements: AFSPC