Orbital elements of BD C21
| Launched | 11 February 2018 |
| Flight ended | – |
| Launch site | Xichang Launch Facility, PRC |
| Owner | People's Republic of China |
| NORAD ID | 43207 |
| Alternative names |
BEIDOU-3 M4 BEIDOU 28 SVN C205 |
| 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 Aug 18 17:56 | 2026 Aug 17 09:56:34 | 56.7069 | 0.00067 | 4.0754 | 39.0864 | 321.0128 | 1.86231 | – |
| 2026 Aug 17 17:56 | 2026 Aug 16 21:03:21 | 56.7063 | 0.00068 | 4.0766 | 38.9656 | 321.0128 | 1.86231 | – |
| 2026 Aug 16 17:56 | 2026 Aug 15 19:16:55 | 56.7054 | 0.00068 | 4.0789 | 38.3181 | 321.0128 | 1.86231 | – |
| 2026 Aug 15 17:57 | 2026 Aug 13 15:44:05 | 56.7028 | 0.00069 | 4.0837 | 37.8313 | 321.0128 | 1.86231 | – |
| 2026 Aug 14 17:56 | 2026 Aug 13 15:44:05 | 56.7028 | 0.00069 | 4.0837 | 37.8313 | 321.0128 | 1.86231 | – |
| 2026 Aug 13 17:57 | 2026 Aug 09 21:31:35 | 56.6994 | 0.00070 | 4.0920 | 36.3766 | 321.0128 | 1.86231 | – |
| 2026 Aug 12 17:56 | 2026 Aug 09 21:31:35 | 56.6994 | 0.00070 | 4.0920 | 36.3766 | 321.0128 | 1.86231 | – |
| 2026 Aug 11 17:56 | 2026 Aug 09 21:31:35 | 56.6994 | 0.00070 | 4.0920 | 36.3766 | 321.0128 | 1.86231 | – |
| 2026 Aug 10 17:56 | 2026 Aug 09 21:31:35 | 56.6994 | 0.00070 | 4.0920 | 36.3766 | 321.0128 | 1.86231 | – |
| 2026 Aug 09 17:57 | 2026 Aug 08 19:45:09 | 56.6982 | 0.00070 | 4.0943 | 37.0349 | 321.0128 | 1.86231 | – |
| 2026 Aug 08 17:57 | 2026 Aug 05 01:32:37 | 56.6944 | 0.00070 | 4.1026 | 36.2525 | 321.0128 | 1.86231 | – |
| 2026 Aug 07 17:57 | 2026 Aug 05 01:32:37 | 56.6944 | 0.00070 | 4.1026 | 36.2525 | 321.0128 | 1.86231 | – |
| 2026 Aug 06 17:57 | 2026 Aug 05 01:32:37 | 56.6944 | 0.00070 | 4.1026 | 36.2525 | 321.0128 | 1.86231 | – |
| 2026 Aug 05 17:56 | 2026 Aug 02 21:59:46 | 56.6924 | 0.00070 | 4.1073 | 35.6578 | 321.0128 | 1.86231 | – |
| 2026 Aug 04 17:57 | 2026 Aug 02 21:59:46 | 56.6924 | 0.00070 | 4.1073 | 35.6578 | 321.0128 | 1.86231 | – |
| 2026 Aug 03 17:56 | 2026 Jul 29 02:00:51 | 56.6879 | 0.00070 | 4.1179 | 34.4284 | 321.0128 | 1.86231 | – |
| 2026 Aug 02 17:57 | 2026 Jul 29 02:00:51 | 56.6879 | 0.00070 | 4.1179 | 34.4284 | 321.0128 | 1.86231 | – |
| 2026 Aug 01 17:57 | 2026 Jul 29 02:00:51 | 56.6879 | 0.00070 | 4.1179 | 34.4284 | 321.0128 | 1.86231 | – |
| 2026 Jul 31 17:56 | 2026 Jul 29 02:00:51 | 56.6879 | 0.00070 | 4.1179 | 34.4284 | 321.0128 | 1.86231 | – |
| 2026 Jul 30 17:57 | 2026 Jul 29 02:00:51 | 56.6879 | 0.00070 | 4.1179 | 34.4284 | 321.0128 | 1.86231 | – |
| 2026 Jul 29 17:57 | 2026 Jul 28 13:07:38 | 56.6874 | 0.00070 | 4.1190 | 34.3969 | 321.0128 | 1.86231 | – |
| 2026 Jul 28 17:57 | 2026 Jul 27 11:21:12 | 56.6864 | 0.00070 | 4.1214 | 34.3706 | 321.0128 | 1.86231 | – |
| 2026 Jul 27 17:57 | 2026 Jul 26 22:27:58 | 56.6860 | 0.00069 | 4.1226 | 33.4820 | 321.0128 | 1.86231 | – |
| 2026 Jul 26 17:56 | 2026 Jul 21 00:42:34 | 56.6812 | 0.00071 | 4.1355 | 31.4150 | 321.0128 | 1.86231 | – |
| 2026 Jul 25 17:57 | 2026 Jul 21 00:42:34 | 56.6812 | 0.00071 | 4.1355 | 31.4150 | 321.0128 | 1.86231 | – |
| 2026 Jul 24 17:56 | 2026 Jul 21 00:42:34 | 56.6812 | 0.00071 | 4.1355 | 31.4150 | 321.0128 | 1.86231 | – |
| 2026 Jul 23 17:57 | 2026 Jul 21 00:42:34 | 56.6812 | 0.00071 | 4.1355 | 31.4150 | 321.0128 | 1.86231 | – |
| 2026 Jul 22 17:57 | 2026 Jul 21 00:42:34 | 56.6812 | 0.00071 | 4.1355 | 31.4150 | 321.0128 | 1.86231 | – |