CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1970-0013
OPS 5259
OPS 5259 (NORAD 3297) re-entered Earth’s atmosphere on 11 January 1970, after 1 year, 6 months in orbit.
Official date
NORAD number
3297
International designator
1968-052B
Object type
Spacecraft
Country
United States
Launched
20 Jun 1968Vandenberg
Re-entered (UTC)
11 Jan 1970UTC calendar day
Time in orbit
1 year, 6 months570 days
How it ended
Re-entered (natural decay)
Latitude range
85.1°N to 85.1°SFinal inclination 85.1°
Mass
116 kg
Operator
NRO / SAFSP
Built by
LMSC / Cutler-Hammer/AIL
Bus
P-11 L
Programme
EHH B
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 85.1°, allowed a re-entry anywhere between 85.1°N and 85.1°S.
Life in orbit
1 year, 6 monthsOPS 5259’s lowest and highest points above Earth, week by week, from its tracking history.
From the same launch
1968-052
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1970-0013
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1970-0013
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.