OAO 3 (COPERNICUS)

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OAO 3 (COPERNICUS) is classified as:

• Brightest

NORAD ID: 6153
Int'l Code: 1972-065A
Perigee: 701.6 km
Apogee: 712.3 km
Inclination: 35.0 °
Period: 98.8 minutes
Semi major axis: 7077 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.

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1  6153U 72065A   20156.36041738 +.00000018 +00000-0 +83433-5 0  9996
2  6153 035.0083 020.1356 0007593 262.3308 265.2127 14.57942947539049

Source of the keplerian elements: AFSPC