CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1978-0052
COSMOS 687
COSMOS 687 (NORAD 7469) re-entered Earth’s atmosphere on 5 February 1978, after 3 years, 3 months in orbit.
Official date
NORAD number
7469
International designator
1974-076A
Object type
Spacecraft
Country
USSR
Launched
11 Oct 1974Plesetsk Cosmodrome
Re-entered (UTC)
5 Feb 1978UTC calendar day
Time in orbit
3 years, 3 months1,213 days
How it ended
Re-entered (natural decay)
Latitude range
74.0°N to 74.0°SFinal inclination 74.0°
Mass
570 kg
Operator
PVO
Built by
Southern SDB
Bus
Vektor
Programme
Vektor3
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 74.0°, allowed a re-entry anywhere between 74.0°N and 74.0°S.
Life in orbit
3 years, 3 monthsCOSMOS 687’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 5 Feb 1978
1 entryFrom the same launch
1974-076
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1978-0052
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1978-0052
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.