CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1978-0394
SL-6 R/B(2)
SL-6 R/B(2) (NORAD 6741) re-entered Earth’s atmosphere on 19 September 1978, after 5 years, 2 months in orbit.
Official date
NORAD number
6741
International designator
1973-045D
Object type
Rocket body
Country
USSR
Launched
11 Jul 1973Plesetsk Cosmodrome
Re-entered (UTC)
19 Sep 1978UTC calendar day
Time in orbit
5 years, 2 months1,896 days
How it ended
Re-entered (natural decay)
Latitude range
—
Mass
4,500 kg
Where it came down
Not on recordNo position was recorded for this re-entry. Its final orbit is not on record.
Life in orbit
5 years, 2 monthsSL-6 R/B(2)’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 19 Sep 1978
2 entriesFrom the same launch
1973-045
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1978-0394
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1978-0394
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.