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 Mar 31 17:57 | 2026 Mar 26 10:01:22 | 63.3166 | 0.07068 | 5.9752 | 116.3073 | 251.2313 | 13.51149 | – |
| 2026 Mar 30 17:58 | 2026 Mar 26 10:01:22 | 63.3166 | 0.07068 | 5.9752 | 116.3073 | 251.2313 | 13.51149 | – |
| 2026 Mar 29 17:57 | 2026 Mar 26 10:01:22 | 63.3166 | 0.07068 | 5.9752 | 116.3073 | 251.2313 | 13.51149 | – |
| 2026 Mar 28 18:57 | 2026 Mar 26 10:01:22 | 63.3166 | 0.07068 | 5.9752 | 116.3073 | 251.2313 | 13.51149 | – |
| 2026 Mar 27 18:57 | 2026 Mar 26 10:01:22 | 63.3166 | 0.07068 | 5.9752 | 116.3073 | 251.2313 | 13.51149 | – |
| 2026 Mar 26 18:57 | 2026 Mar 26 10:01:22 | 63.3166 | 0.07068 | 5.9752 | 116.3073 | 251.2313 | 13.51149 | – |
| 2026 Mar 25 18:56 | 2026 Mar 20 11:55:17 | 63.3166 | 0.07071 | 7.0124 | 116.2302 | 251.2313 | 13.51149 | – |
| 2026 Mar 24 18:56 | 2026 Mar 20 11:55:17 | 63.3166 | 0.07071 | 7.0124 | 116.2302 | 251.2313 | 13.51149 | – |
| 2026 Mar 23 18:56 | 2026 Mar 20 11:55:17 | 63.3166 | 0.07071 | 7.0124 | 116.2302 | 251.2313 | 13.51149 | – |
| 2026 Mar 22 18:56 | 2026 Mar 20 11:55:17 | 63.3166 | 0.07071 | 7.0124 | 116.2302 | 251.2313 | 13.51149 | – |
| 2026 Mar 21 19:05 | 2026 Mar 20 11:55:17 | 63.3166 | 0.07071 | 7.0124 | 116.2302 | 251.2313 | 13.51149 | – |
| 2026 Mar 20 18:57 | 2026 Mar 20 11:55:17 | 63.3166 | 0.07071 | 7.0124 | 116.2302 | 251.2313 | 13.51149 | – |
| 2026 Mar 19 18:56 | 2026 Mar 15 12:54:38 | 63.3168 | 0.07074 | 7.8811 | 116.1680 | 251.2313 | 13.51149 | – |
| 2026 Mar 18 18:56 | 2026 Mar 15 12:54:38 | 63.3168 | 0.07074 | 7.8811 | 116.1680 | 251.2313 | 13.51149 | – |
| 2026 Mar 17 18:56 | 2026 Mar 15 12:54:38 | 63.3168 | 0.07074 | 7.8811 | 116.1680 | 251.2313 | 13.51149 | – |
| 2026 Mar 16 18:57 | 2026 Mar 15 12:54:38 | 63.3168 | 0.07074 | 7.8811 | 116.1680 | 251.2313 | 13.51149 | – |
| 2026 Mar 15 18:56 | 2026 Mar 15 12:54:38 | 63.3168 | 0.07074 | 7.8811 | 116.1680 | 251.2313 | 13.51149 | – |
| 2026 Mar 14 18:56 | 2026 Mar 10 12:07:21 | 63.3176 | 0.07077 | 8.7627 | 116.1048 | 251.2313 | 13.51149 | – |
| 2026 Mar 13 18:57 | 2026 Mar 10 12:07:21 | 63.3176 | 0.07077 | 8.7627 | 116.1048 | 251.2313 | 13.51149 | – |
| 2026 Mar 12 18:57 | 2026 Mar 10 12:07:21 | 63.3176 | 0.07077 | 8.7627 | 116.1048 | 251.2313 | 13.51149 | – |
| 2026 Mar 11 18:56 | 2026 Mar 10 12:07:21 | 63.3176 | 0.07077 | 8.7627 | 116.1048 | 251.2313 | 13.51149 | – |
| 2026 Mar 10 18:56 | 2026 Mar 10 12:07:21 | 63.3176 | 0.07077 | 8.7627 | 116.1048 | 251.2313 | 13.51149 | – |
| 2026 Mar 09 18:56 | 2026 Mar 04 12:14:29 | 63.3180 | 0.07081 | 9.8128 | 116.0267 | 251.2313 | 13.51149 | – |
| 2026 Mar 08 18:57 | 2026 Mar 04 12:14:29 | 63.3180 | 0.07081 | 9.8128 | 116.0267 | 251.2313 | 13.51149 | – |
| 2026 Mar 07 18:57 | 2026 Mar 04 12:14:29 | 63.3180 | 0.07081 | 9.8128 | 116.0267 | 251.2313 | 13.51149 | – |
| 2026 Mar 06 18:56 | 2026 Mar 04 12:14:29 | 63.3180 | 0.07081 | 9.8128 | 116.0267 | 251.2313 | 13.51149 | – |
| 2026 Mar 05 18:56 | 2026 Mar 04 12:14:29 | 63.3180 | 0.07081 | 9.8128 | 116.0267 | 251.2313 | 13.51149 | – |
| 2026 Mar 04 18:57 | 2026 Mar 04 12:14:29 | 63.3180 | 0.07081 | 9.8128 | 116.0267 | 251.2313 | 13.51149 | – |