Orbital elements of ESSA 8
| Launched | 14 December 1968 |
| Flight ended | – |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 3615 |
| Alternative names |
TOS-F |
| 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 Jan 11 18:57 | 2026 Jan 11 13:48:42 | 101.6808 | 0.00316 | 21.4991 | 267.0374 | 92.7078 | 12.56247 | 8.400 |
| 2026 Jan 10 18:57 | 2026 Jan 06 07:40:04 | 101.6800 | 0.00317 | 21.1526 | 277.3274 | 92.7078 | 12.56247 | 8.400 |
| 2026 Jan 09 18:57 | 2026 Jan 06 07:40:04 | 101.6800 | 0.00317 | 21.1526 | 277.3274 | 92.7078 | 12.56247 | 8.400 |
| 2026 Jan 08 18:56 | 2026 Jan 06 07:40:04 | 101.6800 | 0.00317 | 21.1526 | 277.3274 | 92.7078 | 12.56247 | 8.400 |
| 2026 Jan 07 18:57 | 2026 Jan 06 07:40:04 | 101.6800 | 0.00317 | 21.1526 | 277.3274 | 92.7078 | 12.56247 | 8.400 |
| 2026 Jan 06 18:56 | 2026 Jan 06 07:40:04 | 101.6800 | 0.00317 | 21.1526 | 277.3274 | 92.7078 | 12.56247 | 8.400 |
| 2026 Jan 05 18:57 | 2025 Dec 31 10:14:00 | 101.6790 | 0.00317 | 20.7640 | 288.9091 | 92.7078 | 12.56247 | 8.400 |
| 2026 Jan 04 18:56 | 2025 Dec 31 10:14:00 | 101.6790 | 0.00317 | 20.7640 | 288.9091 | 92.7078 | 12.56247 | 8.400 |
| 2026 Jan 03 18:57 | 2025 Dec 31 10:14:00 | 101.6790 | 0.00317 | 20.7640 | 288.9091 | 92.7078 | 12.56247 | 8.400 |
| 2026 Jan 01 18:56 | 2025 Dec 31 10:14:00 | 101.6790 | 0.00317 | 20.7640 | 288.9091 | 92.7078 | 12.56247 | 8.400 |
| 2025 Dec 31 18:57 | 2025 Dec 31 10:14:00 | 101.6790 | 0.00317 | 20.7640 | 288.9091 | 92.7078 | 12.56247 | 8.400 |
| 2025 Dec 30 18:56 | 2025 Dec 26 07:54:43 | 101.6785 | 0.00317 | 20.4281 | 298.8919 | 92.7078 | 12.56247 | 8.400 |
| 2025 Dec 29 18:56 | 2025 Dec 26 07:54:43 | 101.6785 | 0.00317 | 20.4281 | 298.8919 | 92.7078 | 12.56247 | 8.400 |
| 2025 Dec 28 18:57 | 2025 Dec 26 07:54:43 | 101.6785 | 0.00317 | 20.4281 | 298.8919 | 92.7078 | 12.56247 | 8.400 |
| 2025 Dec 27 18:57 | 2025 Dec 26 07:54:43 | 101.6785 | 0.00317 | 20.4281 | 298.8919 | 92.7078 | 12.56247 | 8.400 |
| 2025 Dec 26 18:56 | 2025 Dec 26 07:54:43 | 101.6785 | 0.00317 | 20.4281 | 298.8919 | 92.7078 | 12.56247 | 8.400 |
| 2025 Dec 25 18:57 | 2025 Dec 20 14:18:02 | 101.6777 | 0.00318 | 20.0501 | 310.1007 | 92.7078 | 12.56247 | 8.400 |
| 2025 Dec 24 18:56 | 2025 Dec 20 14:18:02 | 101.6777 | 0.00318 | 20.0501 | 310.1007 | 92.7078 | 12.56247 | 8.400 |
| 2025 Dec 23 18:56 | 2025 Dec 20 14:18:02 | 101.6777 | 0.00318 | 20.0501 | 310.1007 | 92.7078 | 12.56247 | 8.400 |
| 2025 Dec 22 18:57 | 2025 Dec 20 14:18:02 | 101.6777 | 0.00318 | 20.0501 | 310.1007 | 92.7078 | 12.56247 | 8.400 |
| 2025 Dec 21 18:57 | 2025 Dec 20 14:18:02 | 101.6777 | 0.00318 | 20.0501 | 310.1007 | 92.7078 | 12.56247 | 8.400 |
| 2025 Dec 20 18:57 | 2025 Dec 20 14:18:02 | 101.6777 | 0.00318 | 20.0501 | 310.1007 | 92.7078 | 12.56247 | 8.400 |
| 2025 Dec 19 18:57 | 2025 Dec 11 20:03:39 | 101.6761 | 0.00319 | 19.4727 | 327.1650 | 92.7078 | 12.56247 | 8.400 |
| 2025 Dec 18 18:57 | 2025 Dec 11 20:03:39 | 101.6761 | 0.00319 | 19.4727 | 327.1650 | 92.7078 | 12.56247 | 8.400 |
| 2025 Dec 17 18:58 | 2025 Dec 11 20:03:39 | 101.6761 | 0.00319 | 19.4727 | 327.1650 | 92.7078 | 12.56247 | 8.400 |
| 2025 Dec 16 18:57 | 2025 Dec 11 20:03:39 | 101.6761 | 0.00319 | 19.4727 | 327.1650 | 92.7078 | 12.56247 | 8.400 |
| 2025 Dec 15 18:58 | 2025 Dec 11 20:03:39 | 101.6761 | 0.00319 | 19.4727 | 327.1650 | 92.7078 | 12.56247 | 8.400 |