CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1987-0141
DELTA 1 R/B
DELTA 1 R/B (NORAD 17707) re-entered Earth’s atmosphere on 23 April 1987, after 1 month in orbit.
Official date
NORAD number
17707
International designator
1987-029B
Object type
Rocket body
Country
United States
Launched
20 Mar 1987Cape Canaveral
Re-entered (UTC)
23 Apr 1987UTC calendar day
Time in orbit
1 month34 days
How it ended
Re-entered (natural decay)
Latitude range
26.8°N to 26.8°SFinal inclination 26.8°
Mass
6,930 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 26.8°, allowed a re-entry anywhere between 26.8°N and 26.8°S.
Life in orbit
1 monthDELTA 1 R/B’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 23 Apr 1987
2 entriesFrom the same launch
1987-029
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1987-0141
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1987-0141
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.