CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Orbital Register seal
Entry no.
1973-0024

COSMOS 543

COSMOS 543 (NORAD 6339) landed on 25 January 1973, after 14 days in orbit.

Official date
NORAD number
6339
International designator
1973-002A
Object type
Spacecraft
Country
USSR
Launched
11 Jan 1973Baikonur Cosmodrome
Landed (UTC)
25 Jan 1973UTC calendar day
Time in orbit
14 days14 days
How it ended
Landed
Latitude range
65.0°N to 65.0°SFinal inclination 65.0°
Mass
2,200 kg
Operator
GUKOS RVSN
Built by
TsKBEM Fil. 3
Bus
Zenit-4M
Programme
Zenit-4M

Where it came down

Latitude band its orbit allowed
Exact position not recorded

No position was recorded for this re-entry. Its final orbit, inclined at 65.0°, allowed a re-entry anywhere between 65.0°N and 65.0°S.

Life in orbit

14 days

Also ended on 25 Jan 1973

1 entry
1973-0025COSMOS 543 DEB

From the same launch

1973-002
1973-0022SL-4 R/B
Orbital Register seal
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1973-0024
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.