CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1972-0158
OPS 5640
OPS 5640 (NORAD 6003) came down while still attached to its host on 12 May 1972, after 23 days in orbit.
Official date
NORAD number
6003
International designator
1972-032A
Object type
Spacecraft
Country
United States
Launched
19 Apr 1972Vandenberg
Re-entered (UTC)
12 May 1972UTC calendar day
Time in orbit
23 days23 days
How it ended
Came down attached to its host
Latitude range
81.5°N to 81.5°SFinal inclination 81.5°
Mass
345 kg
Operator
NRO / CIA
Built by
LMSC
Bus
CORONA KH-4B
Programme
CORONA CR
Where it came down
Latitude band its orbit allowedExact position not recorded
No position was recorded for this re-entry. Its final orbit, inclined at 81.5°, allowed a re-entry anywhere between 81.5°N and 81.5°S.
Life in orbit
23 daysOPS 5640’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 12 May 1972
1 entry
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1972-0158
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1972-0158
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.