CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Orbital Register seal
Entry no.
1984-0413

SL-4 R/B

SL-4 R/B (NORAD 15258) re-entered Earth’s atmosphere on 15 September 1984, after 11 days in orbit.

Official date
NORAD number
15258
International designator
1984-094B
Object type
Rocket body
Country
USSR
Launched
4 Sep 1984Plesetsk Cosmodrome
Re-entered (UTC)
15 Sep 1984UTC calendar day
Time in orbit
11 days11 days
How it ended
Re-entered (natural decay)
Latitude range
72.9°N to 72.9°SFinal inclination 72.9°
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 72.9°, allowed a re-entry anywhere between 72.9°N and 72.9°S.

Life in orbit

11 days

Also ended on 15 Sep 1984

4 entries
1984-0411SALYUT 7 DEB1984-0412COSMOS 1587 DEB1984-0414COSMOS 1591 DEB1984-0415COSMOS 1591 DEB

From the same launch

1984-094
1984-0417COSMOS 1592
Orbital Register seal
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1984-0413
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.