Orbital elements of ATLAS H R/B
| Launched | 14 May 1987 |
| Flight ended | – |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 17998 |
| 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 Aug 13 17:57 | 2026 Aug 12 23:34:46 | 63.3186 | 0.06997 | 5.5225 | 118.2149 | 249.1340 | 13.51492 | – |
| 2026 Aug 12 17:56 | 2026 Aug 07 01:30:52 | 63.3189 | 0.06999 | 6.5598 | 118.1395 | 249.1340 | 13.51492 | – |
| 2026 Aug 11 17:56 | 2026 Aug 07 01:30:52 | 63.3189 | 0.06999 | 6.5598 | 118.1395 | 249.1340 | 13.51492 | – |
| 2026 Aug 10 17:56 | 2026 Aug 07 01:30:52 | 63.3189 | 0.06999 | 6.5598 | 118.1395 | 249.1340 | 13.51492 | – |
| 2026 Aug 09 17:57 | 2026 Aug 07 01:30:52 | 63.3189 | 0.06999 | 6.5598 | 118.1395 | 249.1340 | 13.51492 | – |
| 2026 Aug 08 17:57 | 2026 Aug 07 01:30:52 | 63.3189 | 0.06999 | 6.5598 | 118.1395 | 249.1340 | 13.51492 | – |
| 2026 Aug 07 17:57 | 2026 Aug 07 01:30:52 | 63.3189 | 0.06999 | 6.5598 | 118.1395 | 249.1340 | 13.51492 | – |
| 2026 Aug 06 17:57 | 2026 Aug 01 03:26:55 | 63.3193 | 0.07001 | 7.5971 | 118.0653 | 249.1340 | 13.51492 | – |
| 2026 Aug 05 17:56 | 2026 Aug 01 03:26:55 | 63.3193 | 0.07001 | 7.5971 | 118.0653 | 249.1340 | 13.51492 | – |
| 2026 Aug 04 17:57 | 2026 Aug 01 03:26:55 | 63.3193 | 0.07001 | 7.5971 | 118.0653 | 249.1340 | 13.51492 | – |
| 2026 Aug 03 17:56 | 2026 Aug 01 03:26:55 | 63.3193 | 0.07001 | 7.5971 | 118.0653 | 249.1340 | 13.51492 | – |
| 2026 Aug 02 17:57 | 2026 Aug 01 03:26:55 | 63.3193 | 0.07001 | 7.5971 | 118.0653 | 249.1340 | 13.51492 | – |
| 2026 Aug 01 17:57 | 2026 Aug 01 03:26:55 | 63.3193 | 0.07001 | 7.5971 | 118.0653 | 249.1340 | 13.51492 | – |
| 2026 Jul 31 17:56 | 2026 Jul 27 04:28:02 | 63.3192 | 0.07003 | 8.4658 | 118.0044 | 249.1340 | 13.51492 | – |
| 2026 Jul 30 17:57 | 2026 Jul 27 04:28:02 | 63.3192 | 0.07003 | 8.4658 | 118.0044 | 249.1340 | 13.51492 | – |
| 2026 Jul 29 17:57 | 2026 Jul 27 04:28:02 | 63.3192 | 0.07003 | 8.4658 | 118.0044 | 249.1340 | 13.51492 | – |
| 2026 Jul 28 17:57 | 2026 Jul 27 04:28:02 | 63.3192 | 0.07003 | 8.4658 | 118.0044 | 249.1340 | 13.51492 | – |
| 2026 Jul 27 17:57 | 2026 Jul 27 04:28:02 | 63.3192 | 0.07003 | 8.4658 | 118.0044 | 249.1340 | 13.51492 | – |
| 2026 Jul 26 17:56 | 2026 Jul 21 06:23:54 | 63.3188 | 0.07005 | 9.5030 | 117.9287 | 249.1340 | 13.51492 | – |
| 2026 Jul 25 17:57 | 2026 Jul 21 06:23:54 | 63.3188 | 0.07005 | 9.5030 | 117.9287 | 249.1340 | 13.51492 | – |
| 2026 Jul 24 17:56 | 2026 Jul 21 06:23:54 | 63.3188 | 0.07005 | 9.5030 | 117.9287 | 249.1340 | 13.51492 | – |
| 2026 Jul 23 17:57 | 2026 Jul 21 06:23:54 | 63.3188 | 0.07005 | 9.5030 | 117.9287 | 249.1340 | 13.51492 | – |
| 2026 Jul 22 17:57 | 2026 Jul 21 06:23:54 | 63.3188 | 0.07005 | 9.5030 | 117.9287 | 249.1340 | 13.51492 | – |
| 2026 Jul 21 17:57 | 2026 Jul 21 06:23:54 | 63.3188 | 0.07005 | 9.5030 | 117.9287 | 249.1340 | 13.51492 | – |
| 2026 Jul 20 17:57 | 2026 Jul 16 03:51:47 | 63.3179 | 0.07008 | 10.3976 | 117.8655 | 249.1340 | 13.51492 | – |
| 2026 Jul 19 19:06 | 2026 Jul 16 03:51:47 | 63.3179 | 0.07008 | 10.3976 | 117.8655 | 249.1340 | 13.51492 | – |
| 2026 Jul 19 17:57 | 2026 Jul 16 03:51:47 | 63.3179 | 0.07008 | 10.3976 | 117.8655 | 249.1340 | 13.51492 | – |
| 2026 Jul 18 17:57 | 2026 Jul 16 03:51:47 | 63.3179 | 0.07008 | 10.3976 | 117.8655 | 249.1340 | 13.51492 | – |
| 2026 Jul 17 17:57 | 2026 Jul 16 03:51:47 | 63.3179 | 0.07008 | 10.3976 | 117.8655 | 249.1340 | 13.51492 | – |