CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1974-0072
COSMOS 73
COSMOS 73 (NORAD 1443) re-entered Earth’s atmosphere on 20 March 1974, after 8 years, 8 months in orbit.
Official date
NORAD number
1443
International designator
1965-053C
Object type
Spacecraft
Country
USSR
Launched
16 Jul 1965Baikonur Cosmodrome
Re-entered (UTC)
20 Mar 1974UTC calendar day
Time in orbit
8 years, 8 months3,169 days
How it ended
Re-entered (natural decay)
Latitude range
56.0°N to 56.0°SFinal inclination 56.0°
Mass
50 kg
Operator
OKB-10
Built by
OKB-10
Bus
Strela-1 11F610
Programme
Strela-1
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 56.0°, allowed a re-entry anywhere between 56.0°N and 56.0°S.
Life in orbit
8 years, 8 monthsCOSMOS 73’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 20 Mar 1974
1 entryFrom the same launch
1965-053
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1974-0072
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1974-0072
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.