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Spacecraft information: OPS 7869
Launch Details
| Launched | 22 May 1968 |
| Flight ended | – |
| Status | Non-operational |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 3266 |
| COSPAR ID | 1968-042A |
| Alternative names |
DMSP 4B F1 |
| Observing |
Current orbital elements
| Inclination | 98.559° |
| Eccentricity | 0.00531 |
| RA ascending node | 13.899 hr |
| Argument perigee | 33.815° |
| Mean anomaly | 326.639° |
| Orbital period | 101.705 min |
| Epoch of osculation | 11 Jan 2026, 12:19 |
Derived Quantities
| Min Altitude | 808.2 km |
| Mean Altitude | 846.5 km |
| Peak Altitude | 884.9 km |
Launched alongside
THOR BURNER 2 R/BOrbital History
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