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Spacecraft information: ATLAS H R/B
Launch Details
| Launched | 14 May 1987 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 17998 |
| COSPAR ID | 1987-043B |
| Observing |
Current orbital elements
| Inclination | 63.319° |
| Eccentricity | 0.07129 |
| RA ascending node | 0.216 hr |
| Argument perigee | 114.902° |
| Mean anomaly | 252.781° |
| Orbital period | 106.599 min |
| Epoch of osculation | 12 Dec 2025, 06:33 |
Derived Quantities
| Min Altitude | 545.3 km |
| Mean Altitude | 1076.2 km |
| Peak Altitude | 1607.2 km |
Orbital History
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