CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
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Entry no.
1991-0274

SL-4 R/B

SL-4 R/B (NORAD 21559) re-entered Earth’s atmosphere on 10 July 1991, after 1 day in orbit.

Official date
NORAD number
21559
International designator
1991-048B
Object type
Rocket body
Country
USSR
Launched
9 Jul 1991Plesetsk Cosmodrome
Re-entered (UTC)
10 Jul 1991UTC calendar day
Time in orbit
1 day1 days
How it ended
Re-entered (natural decay)
Latitude range
82.3°N to 82.3°SFinal inclination 82.3°
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 82.3°, allowed a re-entry anywhere between 82.3°N and 82.3°S.

Life in orbit

1 day

Also ended on 10 Jul 1991

5 entries
1991-0270Kosmos-2106 SS 81991-0271Kosmos-2106 SS 91991-0272Kosmos-2106 SS 101991-0269SL-8 DEB1991-0273DELTA 1 DEB

From the same launch

1991-048
1991-0293COSMOS 2152
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Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1991-0274
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