CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
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Entry no.
1975-0150

OPS 8452

OPS 8452 (NORAD 7499) re-entered Earth’s atmosphere on 26 May 1975, after 6 months in orbit.

Official date
NORAD number
7499
International designator
1974-085C
Object type
Spacecraft
Country
United States
Launched
29 Oct 1974Vandenberg
Re-entered (UTC)
26 May 1975UTC calendar day
Time in orbit
6 months209 days
How it ended
Re-entered (natural decay)
Latitude range
83.3°N to 83.3°SFinal inclination 96.7°
Mass
193 kg
Operator
SAMSO
Built by
Boeing/Kent
Bus
S3
Programme
STP1

Where it came down

Latitude band its orbit allowed
Exact position not recorded

No position was recorded for this re-entry. Its final orbit, inclined at 96.7°, allowed a re-entry anywhere between 83.3°N and 83.3°S.

Life in orbit

6 months

OPS 8452’s lowest and highest points above Earth, week by week, from its tracking history.

Also ended on 26 May 1975

3 entries
1975-0151OPS 9435 (DSCS 2-5)1975-0152OPS 9436 (DSCS 2-6)1975-0153SL-4 DEB

From the same launch

1974-085
1974-0282TITAN 3D R/B1975-0067OPS 71221980-0037OPS 6239
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Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1975-0150
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