Spacecraft information: ARGOS
| Launched | 22 February 1999 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 25634 |
| COSPAR ID | 1999-008A |
| Observing |
Current orbital elements
| Inclination | 98.507° |
| Eccentricity | 0.00092 |
| RA ascending node | 4.781 hr |
| Argument perigee | 224.415° |
| Mean anomaly | 135.628° |
| Orbital period | 101.410 min |
| Epoch of osculation | 13 Apr 2026, 03:51 |
Derived Quantities
| Min Altitude | 825.9 km |
| Mean Altitude | 832.6 km |
| Peak Altitude | 839.2 km |
Launched alongside
ORSTED SUNSAT DELTA 2 R/B DELTA 2 DEB DELTA 2 DEB DELTA 2 DEB DELTA 2 DEB DELTA 2 DEB DELTA 2 DEB DELTA 2 DEBOrbital History
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