CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Orbital Register seal
Entry no.
1991-0258

SL-6 R/B(1)

SL-6 R/B(1) (NORAD 21427) re-entered Earth’s atmosphere on 2 July 1991, after 14 days in orbit.

Official date
NORAD number
21427
International designator
1991-043B
Object type
Rocket body
Country
USSR
Launched
18 Jun 1991Plesetsk Cosmodrome
Re-entered (UTC)
2 Jul 1991UTC calendar day
Time in orbit
14 days14 days
How it ended
Re-entered (natural decay)
Latitude range
62.8°N to 62.8°SFinal inclination 62.8°
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 62.8°, allowed a re-entry anywhere between 62.8°N and 62.8°S.

Life in orbit

14 days

Also ended on 2 Jul 1991

1 entry
1991-0259SL-12 PLAT
Orbital Register seal
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1991-0258
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.