Orbital elements of ATLAS 55E R/B
| Launched | 8 October 1985 |
| Flight ended | – |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 16137 |
| 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 13 18:57 | 2026 Mar 08 02:49:07 | 64.1234 | 0.54545 | 6.8782 | 329.6700 | 7.7691 | 3.90970 | 7.743 |
| 2026 Mar 12 18:57 | 2026 Mar 08 02:49:07 | 64.1234 | 0.54545 | 6.8782 | 329.6700 | 7.7691 | 3.90970 | 7.743 |
| 2026 Mar 11 18:56 | 2026 Mar 08 02:49:07 | 64.1234 | 0.54545 | 6.8782 | 329.6700 | 7.7691 | 3.90970 | 7.743 |
| 2026 Mar 10 18:56 | 2026 Mar 08 02:49:07 | 64.1234 | 0.54545 | 6.8782 | 329.6700 | 7.7691 | 3.90970 | 7.743 |
| 2026 Mar 09 18:56 | 2026 Mar 04 00:36:05 | 64.1195 | 0.54556 | 6.9558 | 329.7378 | 7.7691 | 3.90970 | 7.743 |
| 2026 Mar 08 18:57 | 2026 Mar 04 00:36:05 | 64.1195 | 0.54556 | 6.9558 | 329.7378 | 7.7691 | 3.90970 | 7.743 |
| 2026 Mar 07 18:57 | 2026 Mar 04 00:36:05 | 64.1195 | 0.54556 | 6.9558 | 329.7378 | 7.7691 | 3.90970 | 7.743 |
| 2026 Mar 06 18:56 | 2026 Mar 04 00:36:05 | 64.1195 | 0.54556 | 6.9558 | 329.7378 | 7.7691 | 3.90970 | 7.743 |
| 2026 Mar 05 18:56 | 2026 Mar 04 00:36:05 | 64.1195 | 0.54556 | 6.9558 | 329.7378 | 7.7691 | 3.90970 | 7.743 |
| 2026 Mar 04 18:57 | 2026 Mar 04 00:36:05 | 64.1195 | 0.54556 | 6.9558 | 329.7378 | 7.7691 | 3.90970 | 7.743 |
| 2026 Mar 03 18:56 | 2026 Feb 26 03:24:50 | 64.1136 | 0.54571 | 7.0674 | 329.8354 | 7.7691 | 3.90970 | 7.743 |
| 2026 Mar 02 18:57 | 2026 Feb 26 03:24:50 | 64.1136 | 0.54571 | 7.0674 | 329.8354 | 7.7691 | 3.90970 | 7.743 |
| 2026 Mar 01 18:57 | 2026 Feb 26 03:24:50 | 64.1136 | 0.54571 | 7.0674 | 329.8354 | 7.7691 | 3.90970 | 7.743 |
| 2026 Feb 28 18:56 | 2026 Feb 26 03:24:50 | 64.1136 | 0.54571 | 7.0674 | 329.8354 | 7.7691 | 3.90970 | 7.743 |
| 2026 Feb 27 19:05 | 2026 Feb 26 03:24:50 | 64.1136 | 0.54571 | 7.0674 | 329.8354 | 7.7691 | 3.90970 | 7.743 |
| 2026 Feb 26 20:45 | 2026 Feb 26 03:24:50 | 64.1136 | 0.54571 | 7.0674 | 329.8354 | 7.7691 | 3.90970 | 7.743 |