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 May 09 17:57 | 2026 May 05 11:12:19 | 13.7969 | 0.00366 | 22.2204 | 346.8100 | 15.0569 | 1.00357 | – |
| 2026 May 08 17:57 | 2026 May 05 11:12:19 | 13.7969 | 0.00366 | 22.2204 | 346.8100 | 15.0569 | 1.00357 | – |
| 2026 May 07 17:58 | 2026 May 05 11:12:19 | 13.7969 | 0.00366 | 22.2204 | 346.8100 | 15.0569 | 1.00357 | – |
| 2026 May 06 17:57 | 2026 May 05 11:12:19 | 13.7969 | 0.00366 | 22.2204 | 346.8100 | 15.0569 | 1.00357 | – |
| 2026 May 05 17:57 | 2026 May 05 11:12:19 | 13.7969 | 0.00366 | 22.2204 | 346.8100 | 15.0569 | 1.00357 | – |
| 2026 May 04 17:57 | 2026 Apr 30 11:24:38 | 13.8026 | 0.00365 | 22.2231 | 346.6545 | 15.0569 | 1.00357 | – |
| 2026 May 03 17:57 | 2026 Apr 30 11:24:38 | 13.8026 | 0.00365 | 22.2231 | 346.6545 | 15.0569 | 1.00357 | – |
| 2026 May 02 17:57 | 2026 Apr 30 11:24:38 | 13.8026 | 0.00365 | 22.2231 | 346.6545 | 15.0569 | 1.00357 | – |
| 2026 May 01 17:56 | 2026 Apr 30 11:24:38 | 13.8026 | 0.00365 | 22.2231 | 346.6545 | 15.0569 | 1.00357 | – |
| 2026 Apr 30 17:56 | 2026 Apr 30 11:24:38 | 13.8026 | 0.00365 | 22.2231 | 346.6545 | 15.0569 | 1.00357 | – |
| 2026 Apr 29 17:57 | 2026 Apr 24 11:39:34 | 13.8093 | 0.00366 | 22.2263 | 346.5874 | 15.0569 | 1.00357 | – |
| 2026 Apr 28 17:56 | 2026 Apr 24 11:39:34 | 13.8093 | 0.00366 | 22.2263 | 346.5874 | 15.0569 | 1.00357 | – |
| 2026 Apr 27 17:58 | 2026 Apr 24 11:39:34 | 13.8093 | 0.00366 | 22.2263 | 346.5874 | 15.0569 | 1.00357 | – |
| 2026 Apr 26 17:58 | 2026 Apr 24 11:39:34 | 13.8093 | 0.00366 | 22.2263 | 346.5874 | 15.0569 | 1.00357 | – |
| 2026 Apr 25 17:58 | 2026 Apr 24 11:39:34 | 13.8093 | 0.00366 | 22.2263 | 346.5874 | 15.0569 | 1.00357 | – |
| 2026 Apr 24 17:59 | 2026 Apr 24 11:39:34 | 13.8093 | 0.00366 | 22.2263 | 346.5874 | 15.0569 | 1.00357 | – |
| 2026 Apr 23 17:57 | 2026 Apr 19 11:51:54 | 13.8148 | 0.00367 | 22.2290 | 346.4729 | 15.0569 | 1.00357 | – |
| 2026 Apr 22 17:57 | 2026 Apr 19 11:51:54 | 13.8148 | 0.00367 | 22.2290 | 346.4729 | 15.0569 | 1.00357 | – |
| 2026 Apr 21 17:57 | 2026 Apr 19 11:51:54 | 13.8148 | 0.00367 | 22.2290 | 346.4729 | 15.0569 | 1.00357 | – |
| 2026 Apr 20 17:57 | 2026 Apr 19 11:51:54 | 13.8148 | 0.00367 | 22.2290 | 346.4729 | 15.0569 | 1.00357 | – |
| 2026 Apr 19 17:58 | 2026 Apr 19 11:51:54 | 13.8148 | 0.00367 | 22.2290 | 346.4729 | 15.0569 | 1.00357 | – |
| 2026 Apr 18 17:56 | 2026 Apr 13 01:50:21 | 13.8219 | 0.00368 | 22.2325 | 346.1512 | 15.0569 | 1.00357 | – |
| 2026 Apr 16 17:57 | 2026 Apr 13 01:50:21 | 13.8219 | 0.00368 | 22.2325 | 346.1512 | 15.0569 | 1.00357 | – |
| 2026 Apr 14 17:57 | 2026 Apr 13 01:50:21 | 13.8219 | 0.00368 | 22.2325 | 346.1512 | 15.0569 | 1.00357 | – |
| 2026 Apr 13 17:57 | 2026 Apr 13 01:50:21 | 13.8219 | 0.00368 | 22.2325 | 346.1512 | 15.0569 | 1.00357 | – |
| 2026 Apr 12 17:57 | 2026 Apr 08 02:02:31 | 13.8275 | 0.00368 | 22.2352 | 345.8808 | 15.0569 | 1.00357 | – |