CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1991-0504
DELTA 1 R/B(2)
DELTA 1 R/B(2) (NORAD 13990) re-entered Earth’s atmosphere on 14 November 1991, after 8 years, 7 months in orbit.
Official date
NORAD number
13990
International designator
1983-030C
Object type
Rocket body
Country
United States
Launched
11 Apr 1983Cape Canaveral
Re-entered (UTC)
14 Nov 1991UTC calendar dayAlso recorded as 27 Oct 1986
Time in orbit
8 years, 7 months3,139 days
How it ended
Re-entered (natural decay)
Latitude range
23.6°N to 23.6°SFinal inclination 23.6°
Mass
1,123 kg
Where it came down
Latitude band its orbit allowedExact position not recorded
No position was recorded for this re-entry. Its final orbit, inclined at 23.6°, allowed a re-entry anywhere between 23.6°N and 23.6°S.
Life in orbit
8 years, 7 monthsDELTA 1 R/B(2)’s lowest and highest points above Earth, week by week, from its tracking history.
From the same launch
1983-030
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1991-0504
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1991-0504
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.