Orbital elements of STTW-4
| Launched | 3 February 1990 |
| Flight ended | – |
| Launch site | Xichang Launch Facility, PRC |
| Owner | People's Republic of China |
| NORAD ID | 20473 |
| Alternative names |
SHIYAN TONGBU TONGXING WEIXING 4 DONG FANG HONG-2A 4 DFH-2A 4 CHINASAT 3 ZHONGXING 3 ZX 3 |
| 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 Sep 01 17:56 | 2025 Aug 25 21:32:51 | 14.3024 | 0.00051 | 23.2426 | 166.6889 | 197.3909 | 1.00299 | – |
| 2025 Aug 31 17:56 | 2025 Aug 25 21:32:51 | 14.3024 | 0.00051 | 23.2426 | 166.6889 | 197.3909 | 1.00299 | – |
| 2025 Aug 30 17:56 | 2025 Aug 25 21:32:51 | 14.3024 | 0.00051 | 23.2426 | 166.6889 | 197.3909 | 1.00299 | – |
| 2025 Aug 29 17:56 | 2025 Aug 25 21:32:51 | 14.3024 | 0.00051 | 23.2426 | 166.6889 | 197.3909 | 1.00299 | – |
| 2025 Aug 28 17:57 | 2025 Aug 25 21:32:51 | 14.3024 | 0.00051 | 23.2426 | 166.6889 | 197.3909 | 1.00299 | – |
| 2025 Aug 27 17:56 | 2025 Aug 22 21:35:56 | 14.3037 | 0.00051 | 23.2441 | 165.6885 | 197.3909 | 1.00299 | – |
| 2025 Aug 26 17:56 | 2025 Aug 22 21:35:56 | 14.3037 | 0.00051 | 23.2441 | 165.6885 | 197.3909 | 1.00299 | – |
| 2025 Aug 25 17:56 | 2025 Aug 22 21:35:56 | 14.3037 | 0.00051 | 23.2441 | 165.6885 | 197.3909 | 1.00299 | – |
| 2025 Aug 24 17:56 | 2025 Aug 22 21:35:56 | 14.3037 | 0.00051 | 23.2441 | 165.6885 | 197.3909 | 1.00299 | – |
| 2025 Aug 23 17:56 | 2025 Aug 22 21:35:56 | 14.3037 | 0.00051 | 23.2441 | 165.6885 | 197.3909 | 1.00299 | – |
| 2025 Aug 22 17:56 | 2025 Aug 17 21:48:38 | 14.3057 | 0.00051 | 23.2467 | 163.7749 | 197.3909 | 1.00299 | – |
| 2025 Aug 20 17:56 | 2025 Aug 17 21:48:38 | 14.3057 | 0.00051 | 23.2467 | 163.7749 | 197.3909 | 1.00299 | – |
| 2025 Aug 19 17:56 | 2025 Aug 17 21:48:38 | 14.3057 | 0.00051 | 23.2467 | 163.7749 | 197.3909 | 1.00299 | – |
| 2025 Aug 18 17:56 | 2025 Aug 17 21:48:38 | 14.3057 | 0.00051 | 23.2467 | 163.7749 | 197.3909 | 1.00299 | – |
| 2025 Aug 16 17:56 | 2025 Aug 09 21:49:32 | 14.3095 | 0.00050 | 23.2508 | 162.9459 | 197.3909 | 1.00299 | – |
| 2025 Aug 15 17:57 | 2025 Aug 09 21:49:32 | 14.3095 | 0.00050 | 23.2508 | 162.9459 | 197.3909 | 1.00299 | – |
| 2025 Aug 14 17:56 | 2025 Aug 09 21:49:32 | 14.3095 | 0.00050 | 23.2508 | 162.9459 | 197.3909 | 1.00299 | – |
| 2025 Aug 13 17:58 | 2025 Aug 09 21:49:32 | 14.3095 | 0.00050 | 23.2508 | 162.9459 | 197.3909 | 1.00299 | – |
| 2025 Aug 12 17:56 | 2025 Aug 09 21:49:32 | 14.3095 | 0.00050 | 23.2508 | 162.9459 | 197.3909 | 1.00299 | – |
| 2025 Aug 11 17:56 | 2025 Aug 06 21:52:37 | 14.3108 | 0.00050 | 23.2523 | 162.5646 | 197.3909 | 1.00299 | – |
| 2025 Aug 10 17:57 | 2025 Aug 06 21:52:37 | 14.3108 | 0.00050 | 23.2523 | 162.5646 | 197.3909 | 1.00299 | – |
| 2025 Aug 09 17:56 | 2025 Aug 06 21:52:37 | 14.3108 | 0.00050 | 23.2523 | 162.5646 | 197.3909 | 1.00299 | – |
| 2025 Aug 08 17:56 | 2025 Aug 06 21:52:37 | 14.3108 | 0.00050 | 23.2523 | 162.5646 | 197.3909 | 1.00299 | – |
| 2025 Aug 07 17:56 | 2025 Aug 06 21:52:37 | 14.3108 | 0.00050 | 23.2523 | 162.5646 | 197.3909 | 1.00299 | – |
| 2025 Aug 05 17:56 | 2025 Jul 31 11:41:36 | 14.3137 | 0.00051 | 23.2556 | 160.6469 | 197.3909 | 1.00299 | – |