CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Orbital Register seal
Entry no.
1973-0064

SL-4 R/B

SL-4 R/B (NORAD 6379) re-entered Earth’s atmosphere on 13 March 1973, after 7 days in orbit.

Official date
NORAD number
6379
International designator
1973-012B
Object type
Rocket body
Country
USSR
Launched
6 Mar 1973Baikonur Cosmodrome
Re-entered (UTC)
13 Mar 1973UTC calendar day
Time in orbit
7 days7 days
How it ended
Re-entered (natural decay)
Latitude range
65.0°N to 65.0°SFinal inclination 65.0°
Mass
2,350 kg

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

7 days

Also ended on 13 Mar 1973

1 entry
1973-0063SL-6 R/B(1)

From the same launch

1973-012
1973-0071COSMOS 551
Orbital Register seal
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1973-0064
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.