Orbital elements of KEPLER-21
| Launched | 14 April 2023 |
| Flight ended | – |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | Canada |
| NORAD ID | 56218 |
| 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 Jan 11 18:57 | 2026 Jan 11 15:44:12 | 97.3011 | 0.00024 | 18.8739 | 185.0183 | 175.1053 | 15.65082 | – |
| 2026 Jan 10 18:57 | 2026 Jan 09 16:09:51 | 97.3015 | 0.00021 | 18.7370 | 194.4613 | 175.1053 | 15.65082 | – |
| 2026 Jan 09 18:57 | 2026 Jan 08 17:08:35 | 97.3014 | 0.00018 | 18.6708 | 200.0041 | 175.1053 | 15.65082 | – |
| 2026 Jan 08 18:56 | 2026 Jan 08 06:23:58 | 97.3015 | 0.00018 | 18.6399 | 203.0938 | 175.1053 | 15.65082 | – |
| 2026 Jan 07 18:57 | 2026 Jan 05 06:15:18 | 97.3019 | 0.00014 | 18.4324 | 228.8171 | 175.1053 | 15.65082 | – |
| 2026 Jan 06 18:56 | 2026 Jan 05 06:15:18 | 97.3019 | 0.00014 | 18.4324 | 228.8171 | 175.1053 | 15.65082 | – |
| 2026 Jan 05 18:57 | 2026 Jan 05 06:15:18 | 97.3019 | 0.00014 | 18.4324 | 228.8171 | 175.1053 | 15.65082 | – |
| 2026 Jan 04 18:56 | 2026 Jan 04 07:13:37 | 97.3025 | 0.00013 | 18.3661 | 242.3011 | 175.1053 | 15.65082 | – |
| 2026 Jan 03 18:57 | 2026 Jan 03 06:39:42 | 97.3030 | 0.00013 | 18.2955 | 253.6572 | 175.1053 | 15.65082 | – |
| 2026 Jan 01 18:56 | 2026 Jan 01 13:12:11 | 97.3033 | 0.00013 | 18.1763 | 274.7984 | 175.1053 | 15.65082 | – |
| 2025 Dec 31 18:57 | 2025 Dec 31 15:42:12 | 97.3027 | 0.00014 | 18.1146 | 285.3566 | 175.1053 | 15.65082 | – |
| 2025 Dec 30 18:56 | 2025 Dec 30 05:54:54 | 97.3024 | 0.00016 | 18.0176 | 303.6232 | 175.1053 | 15.65082 | – |
| 2025 Dec 29 18:56 | 2025 Dec 29 05:20:20 | 97.3021 | 0.00018 | 17.9470 | 314.6784 | 175.1053 | 15.65082 | – |
| 2025 Dec 28 18:57 | 2025 Dec 28 15:30:50 | 97.3017 | 0.00018 | 17.9073 | 317.7924 | 175.1053 | 15.65082 | – |
| 2025 Dec 27 18:57 | 2025 Dec 27 11:51:43 | 97.3020 | 0.00021 | 17.8279 | 324.3628 | 175.1053 | 15.65082 | – |
| 2025 Dec 26 18:56 | 2025 Dec 26 06:40:17 | 97.3022 | 0.00024 | 17.7441 | 331.9593 | 175.1053 | 15.65082 | – |
| 2025 Dec 25 18:57 | 2025 Dec 24 23:56:31 | 97.3027 | 0.00026 | 17.6559 | 338.1920 | 175.1053 | 15.65082 | – |
| 2025 Dec 24 18:56 | 2025 Dec 24 05:30:11 | 97.3029 | 0.00028 | 17.6030 | 342.3986 | 175.1053 | 15.65082 | – |
| 2025 Dec 23 18:56 | 2025 Dec 23 04:54:59 | 97.3027 | 0.00030 | 17.5325 | 346.2570 | 175.1053 | 15.65082 | – |
| 2025 Dec 22 18:57 | 2025 Dec 22 04:19:41 | 97.3032 | 0.00032 | 17.4619 | 350.5304 | 175.1053 | 15.65082 | – |
| 2025 Dec 21 18:57 | 2025 Dec 21 11:25:22 | 97.3031 | 0.00033 | 17.4134 | 353.5069 | 175.1053 | 15.65082 | – |
| 2025 Dec 20 18:57 | 2025 Dec 20 12:22:08 | 97.3034 | 0.00035 | 17.3473 | 356.8473 | 175.1053 | 15.65082 | – |
| 2025 Dec 19 18:57 | 2025 Dec 19 05:37:43 | 97.3037 | 0.00037 | 17.2592 | 0.6311 | 175.1053 | 15.65082 | – |
| 2025 Dec 18 18:57 | 2025 Dec 18 06:34:21 | 97.3035 | 0.00039 | 17.1930 | 2.8774 | 175.1053 | 15.65082 | – |
| 2025 Dec 17 18:58 | 2025 Dec 17 07:30:54 | 97.3036 | 0.00041 | 17.1269 | 6.5856 | 175.1053 | 15.65082 | – |
| 2025 Dec 16 18:57 | 2025 Dec 15 17:05:01 | 97.3029 | 0.00044 | 17.0168 | 11.8605 | 175.1053 | 15.65082 | – |