Orbital elements of SZ-21 MODULE
| Launched | 30 October 2025 |
| Flight ended | – |
| Launch site | Jiuquan Space Center, PRC |
| Owner | People's Republic of China |
| NORAD ID | 66515 |
| 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 27 17:57 | 2026 May 26 23:31:29 | 41.4730 | 0.00059 | 5.2813 | 228.3163 | 131.7176 | 15.74434 | – |
| 2026 May 26 17:57 | 2026 May 25 23:09:59 | 41.4729 | 0.00057 | 5.7015 | 222.6143 | 131.7176 | 15.74434 | – |
| 2026 May 25 17:57 | 2026 May 25 04:53:49 | 41.4727 | 0.00055 | 6.0166 | 218.1296 | 131.7176 | 15.74434 | – |
| 2026 May 24 17:57 | 2026 May 23 23:58:07 | 41.4723 | 0.00052 | 6.5154 | 211.1569 | 131.7176 | 15.74434 | – |
| 2026 May 23 17:58 | 2026 May 23 05:41:50 | 41.4726 | 0.00050 | 6.8305 | 206.3010 | 131.7176 | 15.74434 | – |
| 2026 May 22 17:57 | 2026 May 21 23:14:37 | 41.4725 | 0.00046 | 7.3556 | 197.8593 | 131.7176 | 15.74434 | – |
| 2026 May 21 17:57 | 2026 May 20 22:52:46 | 41.4724 | 0.00043 | 7.7756 | 190.9761 | 131.7176 | 15.74434 | – |
| 2026 May 20 17:57 | 2026 May 19 08:48:30 | 41.4720 | 0.00039 | 8.4318 | 179.4092 | 131.7176 | 15.74434 | – |
| 2026 May 19 17:58 | 2026 May 19 08:48:30 | 41.4720 | 0.00039 | 8.4318 | 179.4092 | 131.7176 | 15.74434 | – |
| 2026 May 18 17:57 | 2026 May 18 08:26:29 | 41.4717 | 0.00037 | 8.8519 | 171.8834 | 131.7176 | 15.74434 | – |
| 2026 May 17 17:57 | 2026 May 17 06:33:02 | 41.4712 | 0.00035 | 9.2981 | 162.8580 | 131.7176 | 15.74434 | – |
| 2026 May 16 17:56 | 2026 May 16 07:42:18 | 41.4711 | 0.00032 | 9.6918 | 154.9557 | 131.7176 | 15.74434 | – |
| 2026 May 15 17:57 | 2026 May 14 10:00:39 | 41.4717 | 0.00028 | 10.4791 | 137.0356 | 131.7176 | 15.74434 | – |
| 2026 May 14 17:58 | 2026 May 13 09:38:22 | 41.4720 | 0.00026 | 10.8990 | 125.8691 | 131.7176 | 15.74434 | – |
| 2026 May 13 17:58 | 2026 May 13 09:38:22 | 41.4720 | 0.00026 | 10.8990 | 125.8691 | 131.7176 | 15.74434 | – |
| 2026 May 12 17:58 | 2026 May 12 01:39:02 | 41.4721 | 0.00025 | 11.4499 | 112.9815 | 131.7176 | 15.74434 | – |
| 2026 May 11 17:56 | 2026 May 11 10:25:03 | 41.4722 | 0.00024 | 11.7124 | 104.0595 | 131.7176 | 15.74434 | – |
| 2026 May 10 17:57 | 2026 May 10 10:02:37 | 41.4721 | 0.00024 | 12.1321 | 91.3488 | 131.7176 | 15.74434 | – |
| 2026 May 09 17:57 | 2026 May 09 11:11:32 | 41.4722 | 0.00023 | 12.5257 | 78.3341 | 131.7176 | 15.74434 | – |
| 2026 May 08 17:57 | 2026 May 08 06:14:46 | 41.4721 | 0.00025 | 13.0241 | 65.2433 | 131.7176 | 15.74434 | – |
| 2026 May 07 17:58 | 2026 May 06 22:15:05 | 41.4722 | 0.00026 | 13.5750 | 50.4475 | 131.7176 | 15.74434 | – |
| 2026 May 06 17:57 | 2026 May 06 05:29:29 | 41.4720 | 0.00026 | 13.8636 | 42.5272 | 131.7176 | 15.74434 | – |
| 2026 May 05 17:57 | 2026 May 05 12:43:51 | 41.4720 | 0.00027 | 14.1521 | 34.4670 | 131.7176 | 15.74434 | – |
| 2026 May 04 17:57 | 2026 May 04 07:46:46 | 41.4728 | 0.00029 | 14.6504 | 24.1667 | 131.7176 | 15.74434 | – |
| 2026 May 03 17:57 | 2026 May 03 13:29:36 | 41.4731 | 0.00030 | 14.9652 | 17.9028 | 131.7176 | 15.74434 | – |
| 2026 May 02 17:57 | 2026 May 02 08:32:20 | 41.4736 | 0.00032 | 15.4634 | 8.3344 | 131.7176 | 15.74434 | – |
| 2026 May 01 17:56 | 2026 May 01 09:40:43 | 41.4740 | 0.00034 | 15.8567 | 1.8267 | 131.7176 | 15.74434 | – |
| 2026 Apr 30 17:56 | 2026 Apr 30 09:17:34 | 41.4734 | 0.00035 | 16.2762 | 356.2898 | 131.7176 | 15.74434 | – |