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Spacecraft information: OPS 6157
Launch Details
| Launched | 11 June 1973 |
| Flight ended | – |
| Status | Unknown |
| 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 | 1.075° |
| Eccentricity | 0.00083 |
| RA ascending node | 15.370 hr |
| Argument perigee | 66.154° |
| Mean anomaly | 216.535° |
| Orbital period | 1442.492 min |
| Epoch of osculation | 26 Mar 2026, 12:34 |
Derived Quantities
| Min Altitude | 35883.7 km |
| Mean Altitude | 35918.8 km |
| Peak Altitude | 35954.0 km |
Launched alongside
TITAN 3C TRANSTAGE R/BOrbital History
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