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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 | 1.302° |
| Eccentricity | 0.00095 |
| RA ascending node | 15.961 hr |
| Argument perigee | 39.674° |
| Mean anomaly | 207.760° |
| Orbital period | 1442.557 min |
| Epoch of osculation | 12 Dec 2025, 06:23 |
Derived Quantities
| Min Altitude | 35879.8 km |
| Mean Altitude | 35920.1 km |
| Peak Altitude | 35960.4 km |
Launched alongside
TITAN 3C TRANSTAGE R/BOrbital History
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