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 Jun 23 17:56 | 2026 Jun 22 00:11:51 | 64.2208 | 0.54285 | 4.8801 | 327.7625 | 8.3801 | 3.90968 | 7.743 |
| 2026 Jun 22 17:56 | 2026 Jun 16 09:08:54 | 64.2140 | 0.54294 | 4.9857 | 327.8713 | 8.3801 | 3.90968 | 7.743 |
| 2026 Jun 21 17:57 | 2026 Jun 16 09:08:54 | 64.2140 | 0.54294 | 4.9857 | 327.8713 | 8.3801 | 3.90968 | 7.743 |
| 2026 Jun 20 17:56 | 2026 Jun 16 09:08:54 | 64.2140 | 0.54294 | 4.9857 | 327.8713 | 8.3801 | 3.90968 | 7.743 |
| 2026 Jun 19 17:57 | 2026 Jun 16 09:08:54 | 64.2140 | 0.54294 | 4.9857 | 327.8713 | 8.3801 | 3.90968 | 7.743 |
| 2026 Jun 18 17:56 | 2026 Jun 16 09:08:54 | 64.2140 | 0.54294 | 4.9857 | 327.8713 | 8.3801 | 3.90968 | 7.743 |
| 2026 Jun 17 17:57 | 2026 Jun 16 09:08:54 | 64.2140 | 0.54294 | 4.9857 | 327.8713 | 8.3801 | 3.90968 | 7.743 |
| 2026 Jun 16 17:55 | 2026 Jun 11 06:22:33 | 64.2079 | 0.54304 | 5.0817 | 327.9697 | 8.3801 | 3.90968 | 7.743 |
| 2026 Jun 15 17:56 | 2026 Jun 11 06:22:33 | 64.2079 | 0.54304 | 5.0817 | 327.9697 | 8.3801 | 3.90968 | 7.743 |
| 2026 Jun 14 17:57 | 2026 Jun 11 06:22:33 | 64.2079 | 0.54304 | 5.0817 | 327.9697 | 8.3801 | 3.90968 | 7.743 |
| 2026 Jun 13 17:56 | 2026 Jun 11 06:22:33 | 64.2079 | 0.54304 | 5.0817 | 327.9697 | 8.3801 | 3.90968 | 7.743 |
| 2026 Jun 12 17:56 | 2026 Jun 11 06:22:33 | 64.2079 | 0.54304 | 5.0817 | 327.9697 | 8.3801 | 3.90968 | 7.743 |
| 2026 Jun 11 17:57 | 2026 Jun 06 03:36:13 | 64.2022 | 0.54313 | 5.1778 | 328.0674 | 8.3801 | 3.90968 | 7.743 |
| 2026 Jun 10 17:56 | 2026 Jun 06 03:36:13 | 64.2022 | 0.54313 | 5.1778 | 328.0674 | 8.3801 | 3.90968 | 7.743 |
| 2026 Jun 09 17:57 | 2026 Jun 06 03:36:13 | 64.2022 | 0.54313 | 5.1778 | 328.0674 | 8.3801 | 3.90968 | 7.743 |
| 2026 Jun 08 17:56 | 2026 Jun 06 03:36:13 | 64.2022 | 0.54313 | 5.1778 | 328.0674 | 8.3801 | 3.90968 | 7.743 |
| 2026 Jun 07 17:56 | 2026 Jun 06 03:36:13 | 64.2022 | 0.54313 | 5.1778 | 328.0674 | 8.3801 | 3.90968 | 7.743 |
| 2026 Jun 06 17:56 | 2026 May 31 06:24:55 | 64.1965 | 0.54324 | 5.2884 | 328.1808 | 8.3801 | 3.90968 | 7.743 |
| 2026 Jun 05 17:56 | 2026 May 31 06:24:55 | 64.1965 | 0.54324 | 5.2884 | 328.1808 | 8.3801 | 3.90968 | 7.743 |
| 2026 Jun 04 17:57 | 2026 May 31 06:24:55 | 64.1965 | 0.54324 | 5.2884 | 328.1808 | 8.3801 | 3.90968 | 7.743 |
| 2026 Jun 02 17:56 | 2026 May 31 06:24:55 | 64.1965 | 0.54324 | 5.2884 | 328.1808 | 8.3801 | 3.90968 | 7.743 |
| 2026 Jun 01 17:57 | 2026 May 31 06:24:55 | 64.1965 | 0.54324 | 5.2884 | 328.1808 | 8.3801 | 3.90968 | 7.743 |
| 2026 May 31 17:58 | 2026 May 31 06:24:55 | 64.1965 | 0.54324 | 5.2884 | 328.1808 | 8.3801 | 3.90968 | 7.743 |
| 2026 May 30 17:57 | 2026 May 25 09:13:39 | 64.1906 | 0.54335 | 5.3991 | 328.2920 | 8.3801 | 3.90968 | 7.743 |
| 2026 May 29 17:57 | 2026 May 25 09:13:39 | 64.1906 | 0.54335 | 5.3991 | 328.2920 | 8.3801 | 3.90968 | 7.743 |
| 2026 May 28 17:56 | 2026 May 25 09:13:39 | 64.1906 | 0.54335 | 5.3991 | 328.2920 | 8.3801 | 3.90968 | 7.743 |
| 2026 May 27 17:57 | 2026 May 25 09:13:39 | 64.1906 | 0.54335 | 5.3991 | 328.2920 | 8.3801 | 3.90968 | 7.743 |