Orbital elements of GEOS-1
| Launched | 19 April 1977 |
| Flight ended | – |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | European Space Agency |
| NORAD ID | 9931 |
| Alternative names |
GEOSTATIONARY SCIENTIFIC SATELLITE-1 |
| Date fetched |
Epoch osculation |
Inc. [°] |
Ecc. | RA asc node [hr] |
Arg Peri. [°] |
Mean anom [°] |
Mean motion [rev/day] |
Abs. mag |
| Date fetched |
Epoch osculation |
Inc. [°] |
Ecc. | RA asc node [hr] |
Arg Peri. [°] |
Mean anom [°] |
Mean motion [rev/day] |
Abs. mag |
| 2026 May 11 17:56 | 2026 May 09 20:18:48 | 27.3361 | 0.65977 | 3.0829 | 303.2470 | 10.1741 | 1.96174 | 5.743 |
| 2026 May 10 17:57 | 2026 May 09 20:18:48 | 27.3361 | 0.65977 | 3.0829 | 303.2470 | 10.1741 | 1.96174 | 5.743 |
| 2026 May 09 17:57 | 2026 May 04 05:45:11 | 27.3251 | 0.65976 | 3.1517 | 301.5538 | 10.1741 | 1.96174 | 5.743 |
| 2026 May 08 17:57 | 2026 May 04 05:45:11 | 27.3251 | 0.65976 | 3.1517 | 301.5538 | 10.1741 | 1.96174 | 5.743 |
| 2026 May 07 17:58 | 2026 May 04 05:45:11 | 27.3251 | 0.65976 | 3.1517 | 301.5538 | 10.1741 | 1.96174 | 5.743 |
| 2026 May 06 17:57 | 2026 May 04 05:45:11 | 27.3251 | 0.65976 | 3.1517 | 301.5538 | 10.1741 | 1.96174 | 5.743 |
| 2026 May 05 17:57 | 2026 May 04 05:45:11 | 27.3251 | 0.65976 | 3.1517 | 301.5538 | 10.1741 | 1.96174 | 5.743 |
| 2026 May 04 17:57 | 2026 Apr 27 02:29:54 | 27.3108 | 0.65972 | 3.2396 | 299.3927 | 10.1741 | 1.96174 | 5.743 |
| 2026 May 03 17:57 | 2026 Apr 27 02:29:54 | 27.3108 | 0.65972 | 3.2396 | 299.3927 | 10.1741 | 1.96174 | 5.743 |
| 2026 May 02 17:57 | 2026 Apr 27 02:29:54 | 27.3108 | 0.65972 | 3.2396 | 299.3927 | 10.1741 | 1.96174 | 5.743 |
| 2026 May 01 17:56 | 2026 Apr 27 02:29:54 | 27.3108 | 0.65972 | 3.2396 | 299.3927 | 10.1741 | 1.96174 | 5.743 |
| 2026 Apr 30 17:56 | 2026 Apr 27 02:29:54 | 27.3108 | 0.65972 | 3.2396 | 299.3927 | 10.1741 | 1.96174 | 5.743 |
| 2026 Apr 29 17:57 | 2026 Apr 23 00:38:16 | 27.3034 | 0.65970 | 3.2899 | 298.1568 | 10.1741 | 1.96174 | 5.743 |
| 2026 Apr 28 17:56 | 2026 Apr 23 00:38:16 | 27.3034 | 0.65970 | 3.2899 | 298.1568 | 10.1741 | 1.96174 | 5.743 |
| 2026 Apr 27 17:58 | 2026 Apr 23 00:38:16 | 27.3034 | 0.65970 | 3.2899 | 298.1568 | 10.1741 | 1.96174 | 5.743 |
| 2026 Apr 26 17:58 | 2026 Apr 23 00:38:16 | 27.3034 | 0.65970 | 3.2899 | 298.1568 | 10.1741 | 1.96174 | 5.743 |
| 2026 Apr 25 17:58 | 2026 Apr 23 00:38:16 | 27.3034 | 0.65970 | 3.2899 | 298.1568 | 10.1741 | 1.96174 | 5.743 |
| 2026 Apr 24 17:59 | 2026 Apr 23 00:38:16 | 27.3034 | 0.65970 | 3.2899 | 298.1568 | 10.1741 | 1.96174 | 5.743 |
| 2026 Apr 23 17:57 | 2026 Apr 18 22:46:39 | 27.2960 | 0.65970 | 3.3402 | 296.9184 | 10.1741 | 1.96174 | 5.743 |
| 2026 Apr 22 17:57 | 2026 Apr 18 22:46:39 | 27.2960 | 0.65970 | 3.3402 | 296.9184 | 10.1741 | 1.96174 | 5.743 |
| 2026 Apr 21 17:57 | 2026 Apr 18 22:46:39 | 27.2960 | 0.65970 | 3.3402 | 296.9184 | 10.1741 | 1.96174 | 5.743 |
| 2026 Apr 20 17:57 | 2026 Apr 18 22:46:39 | 27.2960 | 0.65970 | 3.3402 | 296.9184 | 10.1741 | 1.96174 | 5.743 |
| 2026 Apr 19 17:58 | 2026 Apr 18 22:46:39 | 27.2960 | 0.65970 | 3.3402 | 296.9184 | 10.1741 | 1.96174 | 5.743 |
| 2026 Apr 18 17:56 | 2026 Apr 12 07:45:00 | 27.2844 | 0.65966 | 3.4219 | 294.9052 | 10.1741 | 1.96174 | 5.743 |
| 2026 Apr 16 17:57 | 2026 Apr 12 07:45:00 | 27.2844 | 0.65966 | 3.4219 | 294.9052 | 10.1741 | 1.96174 | 5.743 |
| 2026 Apr 14 17:57 | 2026 Apr 12 07:45:00 | 27.2844 | 0.65966 | 3.4219 | 294.9052 | 10.1741 | 1.96174 | 5.743 |