CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1990-0510
DELTA 1 R/B
DELTA 1 R/B (NORAD 311) re-entered Earth’s atmosphere on 28 November 1990, after 28 years, 5 months in orbit.
Official date
NORAD number
311
International designator
1962-025B
Object type
Rocket body
Country
United States
Launched
19 Jun 1962Cape Canaveral
Re-entered (UTC)
28 Nov 1990UTC calendar day
Time in orbit
28 years, 5 months10,389 days
How it ended
Re-entered (natural decay)
Latitude range
58.0°N to 58.0°SFinal inclination 58.0°
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 58.0°, allowed a re-entry anywhere between 58.0°N and 58.0°S.
Life in orbit
28 years, 5 monthsDELTA 1 R/B’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 28 Nov 1990
2 entries
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1990-0510
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1990-0510
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.