Spacecraft information: OPS 3811
| Launched | 4 May 1971 |
| Flight ended | – |
| Status | Non-operational |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 5204 |
| COSPAR ID | 1971-039A |
| Alternative names |
DSP 2 |
| Observing |
Current orbital elements
| Inclination | 0.325° |
| Eccentricity | 0.00213 |
| RA ascending node | 2.673 hr |
| Argument perigee | 253.484° |
| Mean anomaly | 279.749° |
| Orbital period | 1466.978 min |
| Epoch of osculation | 26 May 2026, 07:27 |
Derived Quantities
| Min Altitude | 36304.8 km |
| Mean Altitude | 36396.1 km |
| Peak Altitude | 36487.3 km |
Orbital History
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