CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1980-0023
COSMOS 425
COSMOS 425 (NORAD 5253) re-entered Earth’s atmosphere on 15 January 1980, after 8 years, 7 months in orbit.
Official date
NORAD number
5253
International designator
1971-050A
Object type
Spacecraft
Country
USSR
Launched
29 May 1971Plesetsk Cosmodrome
Re-entered (UTC)
15 Jan 1980UTC calendar day
Time in orbit
8 years, 7 months3,153 days
How it ended
Re-entered (natural decay)
Latitude range
74.0°N to 74.0°SFinal inclination 74.0°
Mass
434 kg
Operator
GRU
Built by
Southern SDB
Bus
Tselina-OM
Programme
Tselina-OM
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
8 years, 7 monthsCOSMOS 425’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 15 Jan 1980
5 entriesFrom the same launch
1971-050
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1980-0023
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1980-0023
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.