Spacecraft information: SWAS
| Launched | 5 December 1998 |
| Flight ended | – |
| Status | Backup/Standby |
| Categories |
Space & Earth Science
Active satellites |
| Launch site | Western Range Airspace |
| Owner | United States |
| NORAD ID | 25560 |
| COSPAR ID | 1998-071A |
| Alternative names |
SUBMILLIMETER WAVE ASTRONOMY SATELLITE |
| Observing |
Current orbital elements
| Inclination | 69.897° |
| Eccentricity | 0.00055 |
| RA ascending node | 20.695 hr |
| Argument perigee | 195.958° |
| Mean anomaly | 164.141° |
| Orbital period | 95.485 min |
| Epoch of osculation | 27 Dec 2025, 06:10 |
Derived Quantities
| Min Altitude | 545.4 km |
| Mean Altitude | 549.2 km |
| Peak Altitude | 553.0 km |
Orbital History
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