Orbital elements of IUS R/B(1)
| Launched | 28 September 1988 |
| Flight ended | – |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 19549 |
| 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 Feb 28 18:56 | 2026 Feb 25 22:52:12 | 26.6618 | 0.67825 | 20.8777 | 111.4394 | 329.9090 | 2.89998 | 4.743 |
| 2026 Feb 27 19:05 | 2026 Feb 25 22:52:12 | 26.6618 | 0.67825 | 20.8777 | 111.4394 | 329.9090 | 2.89998 | 4.743 |
| 2026 Feb 26 20:45 | 2026 Feb 25 22:52:12 | 26.6618 | 0.67825 | 20.8777 | 111.4394 | 329.9090 | 2.89998 | 4.743 |
| 2026 Feb 05 18:58 | 2026 Feb 01 19:42:12 | 26.6676 | 0.67837 | 21.6654 | 91.6738 | 329.9090 | 2.89998 | 4.743 |
| 2026 Feb 04 18:57 | 2026 Feb 01 19:42:12 | 26.6676 | 0.67837 | 21.6654 | 91.6738 | 329.9090 | 2.89998 | 4.743 |
| 2026 Feb 03 18:56 | 2026 Feb 01 19:42:12 | 26.6676 | 0.67837 | 21.6654 | 91.6738 | 329.9090 | 2.89998 | 4.743 |
| 2026 Feb 02 18:56 | 2026 Feb 01 19:42:12 | 26.6676 | 0.67837 | 21.6654 | 91.6738 | 329.9090 | 2.89998 | 4.743 |
| 2026 Feb 01 18:56 | 2026 Jan 25 22:10:05 | 26.6714 | 0.67844 | 21.8912 | 86.0074 | 329.9090 | 2.89998 | 4.743 |