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Spacecraft information: OPS 6157
Launch Details
| Launched | 11 June 1973 |
| Flight ended | – |
| Status | Non-operational |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 6691 |
| COSPAR ID | 1973-040A |
| Alternative names |
DSP 4 |
| Observing |
Current orbital elements
| Inclination | 0.894° |
| Eccentricity | 0.00054 |
| RA ascending node | 14.612 hr |
| Argument perigee | 72.447° |
| Mean anomaly | 131.550° |
| Orbital period | 1442.467 min |
| Epoch of osculation | 29 Jun 2026, 10:38 |
Derived Quantities
| Min Altitude | 35895.6 km |
| Mean Altitude | 35918.3 km |
| Peak Altitude | 35941.0 km |
Launched alongside
TITAN 3C TRANSTAGE R/BOrbital History
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