CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1990-0454
DELTA 1 R/B
DELTA 1 R/B (NORAD 717) re-entered Earth’s atmosphere on 5 October 1990, after 26 years, 9 months in orbit.
Official date
NORAD number
717
International designator
1963-054B
Object type
Rocket body
Country
United States
Launched
21 Dec 1963Vandenberg
Re-entered (UTC)
5 Oct 1990UTC calendar day
Time in orbit
26 years, 9 months9,785 days
How it ended
Re-entered (natural decay)
Latitude range
58.4°N to 58.4°SFinal inclination 58.4°
Mass
24 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 58.4°, allowed a re-entry anywhere between 58.4°N and 58.4°S.
Life in orbit
26 years, 9 monthsDELTA 1 R/B’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 5 Oct 1990
2 entries
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1990-0454
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1990-0454
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.