Orbital elements of USA 61
| Launched | 7 June 1990 |
| Flight ended | – |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 20691 |
| 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 Mar 14 18:56 | 2026 Mar 10 12:51:38 | 63.2939 | 0.08830 | 7.8529 | 83.2526 | 286.8073 | 13.61973 | 5.243 |
| 2026 Mar 13 18:57 | 2026 Mar 10 12:51:38 | 63.2939 | 0.08830 | 7.8529 | 83.2526 | 286.8073 | 13.61973 | 5.243 |
| 2026 Mar 12 18:57 | 2026 Mar 10 12:51:38 | 63.2939 | 0.08830 | 7.8529 | 83.2526 | 286.8073 | 13.61973 | 5.243 |
| 2026 Mar 11 18:56 | 2026 Mar 10 12:51:38 | 63.2939 | 0.08830 | 7.8529 | 83.2526 | 286.8073 | 13.61973 | 5.243 |
| 2026 Mar 10 18:56 | 2026 Mar 10 12:51:38 | 63.2939 | 0.08830 | 7.8529 | 83.2526 | 286.8073 | 13.61973 | 5.243 |
| 2026 Mar 09 18:56 | 2026 Mar 04 12:21:45 | 63.2944 | 0.08830 | 8.9343 | 83.1430 | 286.8073 | 13.61973 | 5.243 |
| 2026 Mar 08 18:57 | 2026 Mar 04 12:21:45 | 63.2944 | 0.08830 | 8.9343 | 83.1430 | 286.8073 | 13.61973 | 5.243 |
| 2026 Mar 07 18:57 | 2026 Mar 04 12:21:45 | 63.2944 | 0.08830 | 8.9343 | 83.1430 | 286.8073 | 13.61973 | 5.243 |
| 2026 Mar 06 18:56 | 2026 Mar 04 12:21:45 | 63.2944 | 0.08830 | 8.9343 | 83.1430 | 286.8073 | 13.61973 | 5.243 |
| 2026 Mar 05 18:56 | 2026 Mar 04 12:21:45 | 63.2944 | 0.08830 | 8.9343 | 83.1430 | 286.8073 | 13.61973 | 5.243 |
| 2026 Mar 04 18:57 | 2026 Mar 04 12:21:45 | 63.2944 | 0.08830 | 8.9343 | 83.1430 | 286.8073 | 13.61973 | 5.243 |
| 2026 Mar 03 18:56 | 2026 Feb 26 11:51:34 | 63.2949 | 0.08831 | 10.0156 | 83.0296 | 286.8073 | 13.61973 | 5.243 |
| 2026 Mar 02 18:57 | 2026 Feb 26 11:51:34 | 63.2949 | 0.08831 | 10.0156 | 83.0296 | 286.8073 | 13.61973 | 5.243 |
| 2026 Mar 01 18:57 | 2026 Feb 26 11:51:34 | 63.2949 | 0.08831 | 10.0156 | 83.0296 | 286.8073 | 13.61973 | 5.243 |
| 2026 Feb 28 18:56 | 2026 Feb 26 11:51:34 | 63.2949 | 0.08831 | 10.0156 | 83.0296 | 286.8073 | 13.61973 | 5.243 |
| 2026 Feb 27 19:05 | 2026 Feb 26 11:51:34 | 63.2949 | 0.08831 | 10.0156 | 83.0296 | 286.8073 | 13.61973 | 5.243 |
| 2026 Feb 26 20:45 | 2026 Feb 26 11:51:34 | 63.2949 | 0.08831 | 10.0156 | 83.0296 | 286.8073 | 13.61973 | 5.243 |