Orbital elements of IUS R/B(2)
| Launched | 1 August 1991 |
| Flight ended | – |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 21641 |
| 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 30 18:57 | 2026 Jan 27 09:34:29 | 13.9060 | 0.00370 | 22.2736 | 342.8731 | 221.0889 | 1.00388 | – |
| 2026 Jan 29 18:56 | 2026 Jan 27 09:34:29 | 13.9060 | 0.00370 | 22.2736 | 342.8731 | 221.0889 | 1.00388 | – |
| 2026 Jan 28 18:56 | 2026 Jan 27 09:34:29 | 13.9060 | 0.00370 | 22.2736 | 342.8731 | 221.0889 | 1.00388 | – |
| 2026 Jan 27 18:56 | 2026 Jan 22 08:15:15 | 13.9118 | 0.00370 | 22.2764 | 342.5408 | 221.0889 | 1.00388 | – |
| 2026 Jan 26 18:57 | 2026 Jan 22 08:15:15 | 13.9118 | 0.00370 | 22.2764 | 342.5408 | 221.0889 | 1.00388 | – |
| 2026 Jan 25 18:57 | 2026 Jan 22 08:15:15 | 13.9118 | 0.00370 | 22.2764 | 342.5408 | 221.0889 | 1.00388 | – |
| 2026 Jan 24 18:58 | 2026 Jan 22 08:15:15 | 13.9118 | 0.00370 | 22.2764 | 342.5408 | 221.0889 | 1.00388 | – |
| 2026 Jan 22 18:56 | 2026 Jan 22 08:15:15 | 13.9118 | 0.00370 | 22.2764 | 342.5408 | 221.0889 | 1.00388 | – |
| 2026 Jan 21 18:56 | 2026 Jan 16 10:20:11 | 13.9186 | 0.00370 | 22.2796 | 342.1500 | 221.0889 | 1.00388 | – |
| 2026 Jan 20 19:06 | 2026 Jan 16 10:20:11 | 13.9186 | 0.00370 | 22.2796 | 342.1500 | 221.0889 | 1.00388 | – |
| 2026 Jan 19 18:57 | 2026 Jan 16 10:20:11 | 13.9186 | 0.00370 | 22.2796 | 342.1500 | 221.0889 | 1.00388 | – |
| 2026 Jan 18 18:57 | 2026 Jan 16 10:20:11 | 13.9186 | 0.00370 | 22.2796 | 342.1500 | 221.0889 | 1.00388 | – |
| 2026 Jan 17 18:56 | 2026 Jan 16 10:20:11 | 13.9186 | 0.00370 | 22.2796 | 342.1500 | 221.0889 | 1.00388 | – |
| 2026 Jan 16 18:57 | 2026 Jan 16 10:20:11 | 13.9186 | 0.00370 | 22.2796 | 342.1500 | 221.0889 | 1.00388 | – |
| 2026 Jan 15 18:56 | 2026 Jan 11 11:08:56 | 13.9244 | 0.00369 | 22.2823 | 341.8915 | 221.0889 | 1.00388 | – |
| 2026 Jan 13 18:56 | 2026 Jan 11 11:08:56 | 13.9244 | 0.00369 | 22.2823 | 341.8915 | 221.0889 | 1.00388 | – |
| 2026 Jan 11 18:57 | 2026 Jan 11 11:08:56 | 13.9244 | 0.00369 | 22.2823 | 341.8915 | 221.0889 | 1.00388 | – |
| 2026 Jan 10 18:57 | 2026 Jan 05 22:29:52 | 13.9307 | 0.00368 | 22.2853 | 341.7139 | 221.0889 | 1.00388 | – |
| 2026 Jan 09 18:57 | 2026 Jan 05 22:29:52 | 13.9307 | 0.00368 | 22.2853 | 341.7139 | 221.0889 | 1.00388 | – |
| 2026 Jan 08 18:56 | 2026 Jan 05 22:29:52 | 13.9307 | 0.00368 | 22.2853 | 341.7139 | 221.0889 | 1.00388 | – |
| 2026 Jan 07 18:57 | 2026 Jan 05 22:29:52 | 13.9307 | 0.00368 | 22.2853 | 341.7139 | 221.0889 | 1.00388 | – |
| 2026 Jan 06 18:56 | 2026 Jan 05 22:29:52 | 13.9307 | 0.00368 | 22.2853 | 341.7139 | 221.0889 | 1.00388 | – |
| 2026 Jan 05 18:57 | 2025 Dec 31 11:08:47 | 13.9369 | 0.00367 | 22.2883 | 341.5623 | 221.0889 | 1.00388 | – |
| 2026 Jan 04 18:56 | 2025 Dec 31 11:08:47 | 13.9369 | 0.00367 | 22.2883 | 341.5623 | 221.0889 | 1.00388 | – |
| 2026 Jan 03 18:57 | 2025 Dec 31 11:08:47 | 13.9369 | 0.00367 | 22.2883 | 341.5623 | 221.0889 | 1.00388 | – |