CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1985-0255
PDP
PDP (NORAD 15929) was returned to Earth aboard the Space Shuttle on 6 August 1985, after 8 days in orbit.
Official date
NORAD number
15929
International designator
1985-063B
Object type
Spacecraft
Country
United States
Launched
29 Jul 1985Cape Canaveral
Landed (UTC)
6 Aug 1985UTC calendar day
Time in orbit
8 days8 days
How it ended
Returned to Earth aboard the Space Shuttle (retrieved)
Latitude range
49.5°N to 49.5°SFinal inclination 49.5°
Mass
285 kg
Operator
NASA MSFC
Built by
Iowa
Bus
PDP
Programme
PDP
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 49.5°, allowed a re-entry anywhere between 49.5°N and 49.5°S.
Life in orbit
8 daysAlso ended on 6 Aug 1985
2 entriesFrom the same launch
1985-063
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1985-0255
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1985-0255
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.