Orbital elements of IUS R/B(1)
| Launched | 23 January 1985 |
| Flight ended | – |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 15544 |
| 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 |
| 2025 Dec 16 18:57 | 2025 Dec 12 06:15:06 | 27.6351 | 0.68390 | 8.3706 | 171.0357 | 214.3933 | 2.82730 | – |
| 2025 Dec 15 18:58 | 2025 Dec 12 06:15:06 | 27.6351 | 0.68390 | 8.3706 | 171.0357 | 214.3933 | 2.82730 | – |
| 2025 Dec 14 18:56 | 2025 Dec 12 06:15:06 | 27.6351 | 0.68390 | 8.3706 | 171.0357 | 214.3933 | 2.82730 | – |
| 2025 Dec 13 18:56 | 2025 Dec 12 06:15:06 | 27.6351 | 0.68390 | 8.3706 | 171.0357 | 214.3933 | 2.82730 | – |
| 2025 Dec 12 18:57 | 2025 Dec 12 06:15:06 | 27.6351 | 0.68390 | 8.3706 | 171.0357 | 214.3933 | 2.82730 | – |
| 2025 Dec 11 18:56 | 2025 Dec 06 23:15:47 | 27.6178 | 0.68410 | 8.5381 | 166.8914 | 214.3933 | 2.82730 | – |
| 2025 Dec 10 18:56 | 2025 Dec 06 23:15:47 | 27.6178 | 0.68410 | 8.5381 | 166.8914 | 214.3933 | 2.82730 | – |
| 2025 Dec 09 18:56 | 2025 Dec 06 23:15:47 | 27.6178 | 0.68410 | 8.5381 | 166.8914 | 214.3933 | 2.82730 | – |
| 2025 Dec 08 18:56 | 2025 Dec 06 23:15:47 | 27.6178 | 0.68410 | 8.5381 | 166.8914 | 214.3933 | 2.82730 | – |
| 2025 Dec 07 18:56 | 2025 Dec 06 23:15:47 | 27.6178 | 0.68410 | 8.5381 | 166.8914 | 214.3933 | 2.82730 | – |
| 2025 Dec 06 18:56 | 2025 Dec 01 16:13:35 | 27.6005 | 0.68425 | 8.7062 | 162.7361 | 214.3933 | 2.82730 | – |
| 2025 Dec 05 18:57 | 2025 Dec 01 16:13:35 | 27.6005 | 0.68425 | 8.7062 | 162.7361 | 214.3933 | 2.82730 | – |
| 2025 Dec 04 18:57 | 2025 Dec 01 16:13:35 | 27.6005 | 0.68425 | 8.7062 | 162.7361 | 214.3933 | 2.82730 | – |
| 2025 Dec 03 18:56 | 2025 Dec 01 16:13:35 | 27.6005 | 0.68425 | 8.7062 | 162.7361 | 214.3933 | 2.82730 | – |
| 2025 Dec 02 18:56 | 2025 Dec 01 16:13:35 | 27.6005 | 0.68425 | 8.7062 | 162.7361 | 214.3933 | 2.82730 | – |
| 2025 Nov 30 18:57 | 2025 Nov 24 23:14:23 | 27.5788 | 0.68445 | 8.9190 | 157.4770 | 214.3933 | 2.82730 | – |
| 2025 Nov 29 18:56 | 2025 Nov 24 23:14:23 | 27.5788 | 0.68445 | 8.9190 | 157.4770 | 214.3933 | 2.82730 | – |
| 2025 Nov 28 18:57 | 2025 Nov 24 23:14:23 | 27.5788 | 0.68445 | 8.9190 | 157.4770 | 214.3933 | 2.82730 | – |
| 2025 Nov 27 18:57 | 2025 Nov 24 23:14:23 | 27.5788 | 0.68445 | 8.9190 | 157.4770 | 214.3933 | 2.82730 | – |
| 2025 Nov 26 18:57 | 2025 Nov 24 23:14:23 | 27.5788 | 0.68445 | 8.9190 | 157.4770 | 214.3933 | 2.82730 | – |
| 2025 Nov 25 18:57 | 2025 Nov 24 23:14:23 | 27.5788 | 0.68445 | 8.9190 | 157.4770 | 214.3933 | 2.82730 | – |
| 2025 Nov 24 18:56 | 2025 Nov 20 00:33:56 | 27.5663 | 0.68457 | 9.0758 | 153.6006 | 214.3933 | 2.82730 | – |
| 2025 Nov 23 18:57 | 2025 Nov 20 00:33:56 | 27.5663 | 0.68457 | 9.0758 | 153.6006 | 214.3933 | 2.82730 | – |
| 2025 Nov 21 18:57 | 2025 Nov 20 00:33:56 | 27.5663 | 0.68457 | 9.0758 | 153.6006 | 214.3933 | 2.82730 | – |
| 2025 Nov 20 18:56 | 2025 Nov 20 00:33:56 | 27.5663 | 0.68457 | 9.0758 | 153.6006 | 214.3933 | 2.82730 | – |