Orbital elements of IRIDIUM 121
| Launched | 24 June 2017 |
| Flight ended | – |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 42812 |
| 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 May 21 17:57 | 2026 May 21 04:00:51 | 86.3988 | 0.00021 | 0.3312 | 85.5626 | 274.5809 | 14.34218 | – |
| 2026 May 20 17:57 | 2026 May 20 07:55:15 | 86.3988 | 0.00021 | 0.3545 | 85.6386 | 274.5809 | 14.34218 | – |
| 2026 May 19 17:58 | 2026 May 19 13:30:07 | 86.3989 | 0.00021 | 0.3759 | 85.5077 | 274.5809 | 14.34218 | – |
| 2026 May 18 17:57 | 2026 May 18 09:02:11 | 86.3990 | 0.00021 | 0.4089 | 85.3217 | 274.5809 | 14.34218 | – |
| 2026 May 17 17:57 | 2026 May 17 07:55:11 | 86.3992 | 0.00021 | 0.4381 | 84.9785 | 274.5809 | 14.34218 | – |
| 2026 May 16 17:56 | 2026 May 16 03:27:15 | 86.3992 | 0.00021 | 0.4711 | 85.2789 | 274.5809 | 14.34218 | – |
| 2026 May 15 17:57 | 2026 May 15 04:00:43 | 86.3994 | 0.00021 | 0.4983 | 85.0827 | 274.5809 | 14.34218 | – |
| 2026 May 14 17:58 | 2026 May 14 04:34:11 | 86.3993 | 0.00021 | 0.5255 | 85.2343 | 274.5809 | 14.34218 | – |
| 2026 May 13 17:58 | 2026 May 13 08:28:34 | 86.3994 | 0.00019 | 0.5487 | 76.9210 | 274.5809 | 14.34218 | – |
| 2026 May 12 17:58 | 2026 May 12 04:00:38 | 86.4000 | 0.00021 | 0.5819 | 83.7105 | 274.5809 | 14.34218 | – |
| 2026 May 11 17:56 | 2026 May 11 09:35:30 | 86.4001 | 0.00021 | 0.6032 | 83.7962 | 274.5809 | 14.34218 | – |
| 2026 May 10 17:57 | 2026 May 10 10:08:58 | 86.4001 | 0.00022 | 0.6304 | 83.8466 | 274.5809 | 14.34218 | – |
| 2026 May 09 17:57 | 2026 May 09 04:00:34 | 86.4001 | 0.00022 | 0.6654 | 83.9469 | 274.5809 | 14.34218 | – |
| 2026 May 08 17:57 | 2026 May 08 04:34:02 | 86.4002 | 0.00022 | 0.6926 | 83.6526 | 274.5809 | 14.34218 | – |
| 2026 May 07 17:58 | 2026 May 07 05:07:30 | 86.4003 | 0.00022 | 0.7198 | 83.5398 | 274.5809 | 14.34218 | – |
| 2026 May 06 17:57 | 2026 May 06 09:01:54 | 86.4005 | 0.00022 | 0.7431 | 84.1165 | 274.5809 | 14.34218 | – |
| 2026 May 05 17:57 | 2026 May 05 09:35:22 | 86.4007 | 0.00022 | 0.7703 | 82.6997 | 274.5809 | 14.34218 | – |
| 2026 May 04 17:57 | 2026 May 03 15:43:43 | 86.4010 | 0.00021 | 0.8189 | 82.1669 | 274.5809 | 14.34218 | – |
| 2026 May 03 17:57 | 2026 May 03 10:42:19 | 86.4011 | 0.00022 | 0.8247 | 82.2001 | 274.5809 | 14.34218 | – |
| 2026 May 02 17:57 | 2026 May 02 04:33:55 | 86.4013 | 0.00022 | 0.8597 | 82.2550 | 274.5809 | 14.34218 | – |
| 2026 May 01 17:56 | 2026 May 01 10:08:47 | 86.4013 | 0.00022 | 0.8810 | 82.4017 | 274.5809 | 14.34218 | – |
| 2026 Apr 30 17:56 | 2026 Apr 30 10:42:16 | 86.4014 | 0.00022 | 0.9082 | 82.3196 | 274.5809 | 14.34218 | – |
| 2026 Apr 29 17:57 | 2026 Apr 29 11:15:44 | 86.4014 | 0.00022 | 0.9354 | 82.2276 | 274.5809 | 14.34218 | – |
| 2026 Apr 28 17:56 | 2026 Apr 28 05:07:20 | 86.4015 | 0.00022 | 0.9704 | 82.2772 | 274.5809 | 14.34218 | – |
| 2026 Apr 27 17:58 | 2026 Apr 27 10:42:12 | 86.4015 | 0.00022 | 0.9917 | 82.3744 | 274.5809 | 14.34218 | – |
| 2026 Apr 26 17:58 | 2026 Apr 26 11:15:40 | 86.4016 | 0.00022 | 1.0189 | 82.3682 | 274.5809 | 14.34218 | – |
| 2026 Apr 25 17:58 | 2026 Apr 25 10:08:40 | 86.4016 | 0.00022 | 1.0480 | 82.0557 | 274.5809 | 14.34218 | – |
| 2026 Apr 24 17:59 | 2026 Apr 24 04:00:16 | 86.4015 | 0.00022 | 1.0830 | 82.2390 | 274.5809 | 14.34218 | – |