Spacecraft information: NTS 2
| Launched | 22 June 1977 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 10091 |
| COSPAR ID | 1977-053A |
| Observing |
Current orbital elements
| Inclination | 63.196° |
| Eccentricity | 0.00725 |
| RA ascending node | 19.097 hr |
| Argument perigee | 222.414° |
| Mean anomaly | 251.713° |
| Orbital period | 718.386 min |
| Epoch of osculation | 30 Dec 2025, 04:31 |
Derived Quantities
| Min Altitude | 20006.8 km |
| Mean Altitude | 20199.4 km |
| Peak Altitude | 20392.1 km |
Orbital History
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