CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1989-0504
DELTA 1 R/B
DELTA 1 R/B (NORAD 11704) re-entered Earth’s atmosphere on 16 May 1989, after 9 years, 3 months in orbit.
Official date
NORAD number
11704
International designator
1980-014B
Object type
Rocket body
Country
United States
Launched
14 Feb 1980Cape Canaveral
Re-entered (UTC)
16 May 1989UTC calendar day
Time in orbit
9 years, 3 months3,379 days
How it ended
Re-entered (natural decay)
Latitude range
28.5°N to 28.5°SFinal inclination 28.5°
Mass
845 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 28.5°, allowed a re-entry anywhere between 28.5°N and 28.5°S.
Life in orbit
9 years, 3 monthsDELTA 1 R/B’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 16 May 1989
1 entryFrom the same launch
1980-014
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1989-0504
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1989-0504
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.