CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1971-0328
COSMOS 408
COSMOS 408 (NORAD 5177) re-entered Earth’s atmosphere on 29 December 1971, after 8 months in orbit.
Official date
NORAD number
5177
International designator
1971-037A
Object type
Spacecraft
Country
USSR
Launched
24 Apr 1971Plesetsk Cosmodrome
Re-entered (UTC)
29 Dec 1971UTC calendar day
Time in orbit
8 months249 days
How it ended
Re-entered (natural decay)
Latitude range
81.7°N to 81.7°SFinal inclination 81.7°
Mass
200 kg
Operator
PVO
Built by
Southern SDB
Bus
DS-P1
Programme
DS-P1-Yu B
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 81.7°, allowed a re-entry anywhere between 81.7°N and 81.7°S.
Life in orbit
8 monthsCOSMOS 408’s lowest and highest points above Earth, week by week, from its tracking history.
From the same launch
1971-037
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1971-0328
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1971-0328
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.