CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1977-0230
OPS 4915
OPS 4915 (NORAD 9863) came down while still attached to its host on 26 May 1977, after 2 months in orbit.
Official date
NORAD number
9863
International designator
1977-019A
Object type
Spacecraft
Country
United States
Launched
13 Mar 1977Vandenberg
Re-entered (UTC)
26 May 1977UTC calendar day
Time in orbit
2 months74 days
How it ended
Came down attached to its host
Latitude range
83.6°N to 83.6°SFinal inclination 96.4°
Mass
2,400 kg
Operator
NRO / SAFSP
Built by
LMSC
Bus
KH-8
Programme
KH8E
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 96.4°, allowed a re-entry anywhere between 83.6°N and 83.6°S.
Life in orbit
2 monthsOPS 4915’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 26 May 1977
3 entries
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1977-0230
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1977-0230
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.