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 Apr 14 17:57 | 2026 Apr 14 05:30:03 | 97.2925 | 0.00029 | 1.3268 | 152.4722 | 207.6697 | 15.79913 | – |
| 2026 Apr 13 17:57 | 2026 Apr 13 05:10:42 | 97.2923 | 0.00027 | 1.2554 | 154.0230 | 207.6697 | 15.79913 | – |
| 2026 Apr 12 17:57 | 2026 Apr 12 06:22:26 | 97.2927 | 0.00024 | 1.1884 | 156.0237 | 207.6697 | 15.79913 | – |
| 2026 Apr 11 17:57 | 2026 Apr 11 12:07:44 | 97.2926 | 0.00023 | 1.1348 | 158.2127 | 207.6697 | 15.79913 | – |
| 2026 Apr 10 17:58 | 2026 Apr 10 07:14:15 | 97.2918 | 0.00020 | 1.0500 | 154.7357 | 207.6697 | 15.79913 | – |
| 2026 Apr 09 18:01 | 2026 Apr 09 06:54:16 | 97.2915 | 0.00019 | 0.9786 | 152.6430 | 207.6697 | 15.79913 | – |
| 2026 Apr 08 17:57 | 2026 Apr 08 05:02:51 | 97.2920 | 0.00016 | 0.9028 | 153.4248 | 207.6697 | 15.79913 | – |
| 2026 Apr 07 17:57 | 2026 Apr 07 04:42:29 | 97.2932 | 0.00014 | 0.8314 | 153.2424 | 207.6697 | 15.79913 | – |
| 2026 Apr 06 17:57 | 2026 Apr 05 17:42:53 | 97.2933 | 0.00011 | 0.7288 | 149.0404 | 207.6697 | 15.79913 | – |
| 2026 Apr 05 17:56 | 2026 Apr 05 11:37:41 | 97.2932 | 0.00011 | 0.7109 | 147.4215 | 207.6697 | 15.79913 | – |
| 2026 Apr 04 17:57 | 2026 Apr 04 06:42:51 | 97.2933 | 0.00009 | 0.6262 | 135.2088 | 207.6697 | 15.79913 | – |
| 2026 Apr 03 17:56 | 2026 Apr 03 06:21:39 | 97.2941 | 0.00007 | 0.5549 | 119.9607 | 207.6697 | 15.79913 | – |
| 2026 Apr 02 18:03 | 2026 Apr 02 07:31:32 | 97.2949 | 0.00005 | 0.4880 | 102.8842 | 207.6697 | 15.79913 | – |
| 2026 Mar 31 17:57 | 2026 Mar 31 05:16:34 | 97.2943 | 0.00008 | 0.3409 | 62.4877 | 207.6697 | 15.79913 | – |
| 2026 Mar 30 17:58 | 2026 Mar 30 06:25:50 | 97.2946 | 0.00009 | 0.2741 | 49.8509 | 207.6697 | 15.79913 | – |
| 2026 Mar 29 17:57 | 2026 Mar 28 17:52:16 | 97.2947 | 0.00012 | 0.1671 | 42.2366 | 207.6697 | 15.79913 | – |
| 2026 Mar 28 18:57 | 2026 Mar 28 11:46:38 | 97.2945 | 0.00013 | 0.1493 | 40.8967 | 207.6697 | 15.79913 | – |
| 2026 Mar 27 18:57 | 2026 Mar 27 06:49:40 | 97.2931 | 0.00017 | 0.0647 | 39.3355 | 207.6697 | 15.79913 | – |
| 2026 Mar 26 18:57 | 2026 Mar 26 04:55:19 | 97.2935 | 0.00019 | 23.9891 | 38.0656 | 207.6697 | 15.79913 | – |
| 2026 Mar 25 18:56 | 2026 Mar 24 17:52:06 | 97.2944 | 0.00022 | 23.8867 | 37.1303 | 207.6697 | 15.79913 | – |
| 2026 Mar 24 18:56 | 2026 Mar 24 11:46:17 | 97.2943 | 0.00022 | 23.8689 | 37.0288 | 207.6697 | 15.79913 | – |
| 2026 Mar 23 18:56 | 2026 Mar 23 12:54:23 | 97.2942 | 0.00025 | 23.8021 | 38.8187 | 207.6697 | 15.79913 | – |
| 2026 Mar 22 18:56 | 2026 Mar 21 16:41:35 | 97.2955 | 0.00028 | 23.6731 | 39.7098 | 207.6697 | 15.79913 | – |
| 2026 Mar 21 19:05 | 2026 Mar 21 12:07:08 | 97.2957 | 0.00029 | 23.6598 | 39.2142 | 207.6697 | 15.79913 | – |
| 2026 Mar 20 18:57 | 2026 Mar 20 11:43:11 | 97.2959 | 0.00031 | 23.5886 | 41.2137 | 207.6697 | 15.79913 | – |
| 2026 Mar 19 18:56 | 2026 Mar 19 06:44:34 | 97.2955 | 0.00034 | 23.5041 | 43.7622 | 207.6697 | 15.79913 | – |