Orbital elements of IUS R/B(1)
| Launched | 5 October 1990 |
| Flight ended | – |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 20843 |
| 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 13 18:56 | 2026 Jan 11 12:14:17 | 28.1440 | 0.66658 | 9.2379 | 37.3193 | 353.9909 | 3.03358 | 4.743 |
| 2026 Jan 11 18:57 | 2026 Jan 11 12:14:17 | 28.1440 | 0.66658 | 9.2379 | 37.3193 | 353.9909 | 3.03358 | 4.743 |
| 2026 Jan 10 18:57 | 2026 Jan 05 21:45:34 | 28.1502 | 0.66649 | 9.4284 | 32.6496 | 353.9909 | 3.03358 | 4.743 |
| 2026 Jan 09 18:57 | 2026 Jan 05 21:45:34 | 28.1502 | 0.66649 | 9.4284 | 32.6496 | 353.9909 | 3.03358 | 4.743 |
| 2026 Jan 08 18:56 | 2026 Jan 05 21:45:34 | 28.1502 | 0.66649 | 9.4284 | 32.6496 | 353.9909 | 3.03358 | 4.743 |
| 2026 Jan 07 18:57 | 2026 Jan 05 21:45:34 | 28.1502 | 0.66649 | 9.4284 | 32.6496 | 353.9909 | 3.03358 | 4.743 |
| 2026 Jan 06 18:56 | 2026 Jan 05 21:45:34 | 28.1502 | 0.66649 | 9.4284 | 32.6496 | 353.9909 | 3.03358 | 4.743 |
| 2026 Jan 05 18:57 | 2025 Dec 30 23:22:07 | 28.1553 | 0.66639 | 9.6299 | 27.7103 | 353.9909 | 3.03358 | 4.743 |
| 2026 Jan 04 18:56 | 2025 Dec 30 23:22:07 | 28.1553 | 0.66639 | 9.6299 | 27.7103 | 353.9909 | 3.03358 | 4.743 |
| 2026 Jan 03 18:57 | 2025 Dec 30 23:22:07 | 28.1553 | 0.66639 | 9.6299 | 27.7103 | 353.9909 | 3.03358 | 4.743 |
| 2026 Jan 01 18:56 | 2025 Dec 30 23:22:07 | 28.1553 | 0.66639 | 9.6299 | 27.7103 | 353.9909 | 3.03358 | 4.743 |
| 2025 Dec 31 18:57 | 2025 Dec 30 23:22:07 | 28.1553 | 0.66639 | 9.6299 | 27.7103 | 353.9909 | 3.03358 | 4.743 |
| 2025 Dec 30 18:56 | 2025 Dec 25 16:47:32 | 28.1569 | 0.66634 | 9.8085 | 23.3216 | 353.9909 | 3.03358 | 4.743 |
| 2025 Dec 29 18:56 | 2025 Dec 25 16:47:32 | 28.1569 | 0.66634 | 9.8085 | 23.3216 | 353.9909 | 3.03358 | 4.743 |
| 2025 Dec 28 18:57 | 2025 Dec 25 16:47:32 | 28.1569 | 0.66634 | 9.8085 | 23.3216 | 353.9909 | 3.03358 | 4.743 |
| 2025 Dec 27 18:57 | 2025 Dec 25 16:47:32 | 28.1569 | 0.66634 | 9.8085 | 23.3216 | 353.9909 | 3.03358 | 4.743 |
| 2025 Dec 26 18:56 | 2025 Dec 25 16:47:32 | 28.1569 | 0.66634 | 9.8085 | 23.3216 | 353.9909 | 3.03358 | 4.743 |
| 2025 Dec 25 18:57 | 2025 Dec 20 02:17:52 | 28.1573 | 0.66630 | 9.9979 | 18.6642 | 353.9909 | 3.03358 | 4.743 |
| 2025 Dec 24 18:56 | 2025 Dec 20 02:17:52 | 28.1573 | 0.66630 | 9.9979 | 18.6642 | 353.9909 | 3.03358 | 4.743 |
| 2025 Dec 23 18:56 | 2025 Dec 20 02:17:52 | 28.1573 | 0.66630 | 9.9979 | 18.6642 | 353.9909 | 3.03358 | 4.743 |
| 2025 Dec 22 18:57 | 2025 Dec 20 02:17:52 | 28.1573 | 0.66630 | 9.9979 | 18.6642 | 353.9909 | 3.03358 | 4.743 |
| 2025 Dec 21 18:57 | 2025 Dec 20 02:17:52 | 28.1573 | 0.66630 | 9.9979 | 18.6642 | 353.9909 | 3.03358 | 4.743 |
| 2025 Dec 20 18:57 | 2025 Dec 20 02:17:52 | 28.1573 | 0.66630 | 9.9979 | 18.6642 | 353.9909 | 3.03358 | 4.743 |
| 2025 Dec 19 18:57 | 2025 Dec 11 20:30:09 | 28.1542 | 0.66629 | 10.2757 | 11.8223 | 353.9909 | 3.03358 | 4.743 |
| 2025 Dec 18 18:57 | 2025 Dec 11 20:30:09 | 28.1542 | 0.66629 | 10.2757 | 11.8223 | 353.9909 | 3.03358 | 4.743 |
| 2025 Dec 17 18:58 | 2025 Dec 11 20:30:09 | 28.1542 | 0.66629 | 10.2757 | 11.8223 | 353.9909 | 3.03358 | 4.743 |