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 |
| 2025 Aug 20 17:56 | 2025 Aug 20 06:00:27 | 97.3101 | 0.00077 | 9.0038 | 62.7202 | 297.4832 | 15.51840 | – |
| 2025 Aug 19 17:56 | 2025 Aug 18 15:19:02 | 97.3099 | 0.00078 | 8.8945 | 66.4742 | 297.4832 | 15.51840 | – |
| 2025 Aug 18 17:56 | 2025 Aug 17 17:39:00 | 97.3096 | 0.00079 | 8.8333 | 68.9098 | 297.4832 | 15.51840 | – |
| 2025 Aug 16 17:56 | 2025 Aug 16 06:03:09 | 97.3096 | 0.00079 | 8.7327 | 72.9296 | 297.4832 | 15.51840 | – |
| 2025 Aug 15 17:57 | 2025 Aug 14 16:54:22 | 97.3101 | 0.00080 | 8.6278 | 76.3889 | 297.4832 | 15.51840 | – |
| 2025 Aug 14 17:56 | 2025 Aug 13 16:08:26 | 97.3103 | 0.00080 | 8.5578 | 78.9947 | 297.4832 | 15.51840 | – |
| 2025 Aug 13 17:58 | 2025 Aug 12 16:55:21 | 97.3108 | 0.00081 | 8.4923 | 81.3063 | 297.4832 | 15.51840 | – |
| 2025 Aug 12 17:56 | 2025 Aug 11 16:09:20 | 97.3113 | 0.00081 | 8.4223 | 83.8800 | 297.4832 | 15.51840 | – |
| 2025 Aug 11 17:56 | 2025 Aug 11 03:46:19 | 97.3116 | 0.00081 | 8.3873 | 85.5127 | 297.4832 | 15.51840 | – |
| 2025 Aug 10 17:57 | 2025 Aug 09 11:31:25 | 97.3124 | 0.00081 | 8.2737 | 89.5735 | 297.4832 | 15.51840 | – |
| 2025 Aug 09 17:56 | 2025 Aug 09 11:31:25 | 97.3124 | 0.00081 | 8.2737 | 89.5735 | 297.4832 | 15.51840 | – |
| 2025 Aug 08 17:56 | 2025 Aug 08 04:33:42 | 97.3132 | 0.00081 | 8.1863 | 92.3936 | 297.4832 | 15.51840 | – |
| 2025 Aug 07 17:56 | 2025 Aug 06 16:57:15 | 97.3133 | 0.00081 | 8.0858 | 96.2937 | 297.4832 | 15.51840 | – |
| 2025 Aug 05 17:56 | 2025 Aug 04 16:57:33 | 97.3131 | 0.00080 | 7.9502 | 100.9691 | 297.4832 | 15.51840 | – |
| 2025 Aug 04 17:56 | 2025 Aug 03 05:20:55 | 97.3133 | 0.00080 | 7.8497 | 105.2178 | 297.4832 | 15.51840 | – |
| 2025 Aug 03 17:56 | 2025 Aug 03 05:20:55 | 97.3133 | 0.00080 | 7.8497 | 105.2178 | 297.4832 | 15.51840 | – |
| 2025 Aug 02 17:56 | 2025 Aug 02 04:34:30 | 97.3132 | 0.00079 | 7.7797 | 108.2340 | 297.4832 | 15.51840 | – |
| 2025 Aug 01 17:56 | 2025 Jul 31 16:57:42 | 97.3132 | 0.00079 | 7.6792 | 111.7034 | 297.4832 | 15.51840 | – |
| 2025 Jul 31 17:56 | 2025 Jul 30 16:11:10 | 97.3137 | 0.00078 | 7.6093 | 114.7491 | 297.4832 | 15.51840 | – |
| 2025 Jul 29 17:56 | 2025 Jul 29 04:34:12 | 97.3142 | 0.00077 | 7.5087 | 118.7311 | 297.4832 | 15.51840 | – |
| 2025 Jul 28 17:58 | 2025 Jul 27 16:57:09 | 97.3145 | 0.00076 | 7.4082 | 122.2031 | 297.4832 | 15.51840 | – |
| 2025 Jul 26 17:56 | 2025 Jul 26 11:31:41 | 97.3150 | 0.00075 | 7.3252 | 125.9501 | 297.4832 | 15.51840 | – |
| 2025 Jul 25 17:56 | 2025 Jul 25 10:44:56 | 97.3156 | 0.00074 | 7.2552 | 128.5519 | 297.4832 | 15.51840 | – |