CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1991-0230
COSMOS 673
COSMOS 673 (NORAD 7417) re-entered Earth’s atmosphere on 1 June 1991, after 16 years, 9 months in orbit.
Official date
NORAD number
7417
International designator
1974-066A
Object type
Spacecraft
Country
USSR
Launched
16 Aug 1974Plesetsk Cosmodrome
Re-entered (UTC)
1 Jun 1991UTC calendar day
Time in orbit
16 years, 9 months6,133 days
How it ended
Re-entered (natural decay)
Latitude range
81.1°N to 81.1°SFinal inclination 81.1°
Mass
1,750 kg
Operator
TsNII-108
Built by
Southern SDB
Bus
Tselina-D
Programme
Tselina-D
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 81.1°, allowed a re-entry anywhere between 81.1°N and 81.1°S.
Life in orbit
16 years, 9 monthsCOSMOS 673’s lowest and highest points above Earth, week by week, from its tracking history.
From the same launch
1974-066
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1991-0230
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1991-0230
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.