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 |
| 2026 Jun 18 17:56 | 2026 Jun 16 15:28:30 | 14.1563 | 0.00028 | 23.0948 | 156.6547 | 91.3713 | 1.00285 | – |
| 2026 Jun 17 17:57 | 2026 Jun 16 15:28:30 | 14.1563 | 0.00028 | 23.0948 | 156.6547 | 91.3713 | 1.00285 | – |
| 2026 Jun 16 17:55 | 2026 Jun 11 23:58:17 | 14.1587 | 0.00027 | 23.0972 | 155.4441 | 91.3713 | 1.00285 | – |
| 2026 Jun 15 17:56 | 2026 Jun 11 23:58:17 | 14.1587 | 0.00027 | 23.0972 | 155.4441 | 91.3713 | 1.00285 | – |
| 2026 Jun 14 17:57 | 2026 Jun 11 23:58:17 | 14.1587 | 0.00027 | 23.0972 | 155.4441 | 91.3713 | 1.00285 | – |
| 2026 Jun 13 17:56 | 2026 Jun 11 23:58:17 | 14.1587 | 0.00027 | 23.0972 | 155.4441 | 91.3713 | 1.00285 | – |
| 2026 Jun 12 17:56 | 2026 Jun 11 23:58:17 | 14.1587 | 0.00027 | 23.0972 | 155.4441 | 91.3713 | 1.00285 | – |
| 2026 Jun 11 17:57 | 2026 Jun 07 00:11:54 | 14.1612 | 0.00026 | 23.0997 | 156.1219 | 91.3713 | 1.00285 | – |
| 2026 Jun 10 17:56 | 2026 Jun 07 00:11:54 | 14.1612 | 0.00026 | 23.0997 | 156.1219 | 91.3713 | 1.00285 | – |
| 2026 Jun 09 17:57 | 2026 Jun 07 00:11:54 | 14.1612 | 0.00026 | 23.0997 | 156.1219 | 91.3713 | 1.00285 | – |
| 2026 Jun 08 17:56 | 2026 Jun 07 00:11:54 | 14.1612 | 0.00026 | 23.0997 | 156.1219 | 91.3713 | 1.00285 | – |
| 2026 Jun 07 17:56 | 2026 Jun 07 00:11:54 | 14.1612 | 0.00026 | 23.0997 | 156.1219 | 91.3713 | 1.00285 | – |
| 2026 Jun 06 17:56 | 2026 May 31 12:29:21 | 14.1647 | 0.00025 | 23.1030 | 156.9048 | 91.3713 | 1.00285 | – |
| 2026 Jun 05 17:56 | 2026 May 31 12:29:21 | 14.1647 | 0.00025 | 23.1030 | 156.9048 | 91.3713 | 1.00285 | – |
| 2026 Jun 04 17:57 | 2026 May 31 12:29:21 | 14.1647 | 0.00025 | 23.1030 | 156.9048 | 91.3713 | 1.00285 | – |
| 2026 Jun 02 17:56 | 2026 May 31 12:29:21 | 14.1647 | 0.00025 | 23.1030 | 156.9048 | 91.3713 | 1.00285 | – |
| 2026 Jun 01 17:57 | 2026 May 31 12:29:21 | 14.1647 | 0.00025 | 23.1030 | 156.9048 | 91.3713 | 1.00285 | – |
| 2026 May 31 17:58 | 2026 May 31 12:29:21 | 14.1647 | 0.00025 | 23.1030 | 156.9048 | 91.3713 | 1.00285 | – |
| 2026 May 30 17:57 | 2026 May 26 00:43:55 | 14.1676 | 0.00025 | 23.1057 | 156.0242 | 91.3713 | 1.00285 | – |
| 2026 May 29 17:57 | 2026 May 26 00:43:55 | 14.1676 | 0.00025 | 23.1057 | 156.0242 | 91.3713 | 1.00285 | – |
| 2026 May 28 17:56 | 2026 May 26 00:43:55 | 14.1676 | 0.00025 | 23.1057 | 156.0242 | 91.3713 | 1.00285 | – |
| 2026 May 27 17:57 | 2026 May 26 00:43:55 | 14.1676 | 0.00025 | 23.1057 | 156.0242 | 91.3713 | 1.00285 | – |
| 2026 May 26 17:57 | 2026 May 26 00:43:55 | 14.1676 | 0.00025 | 23.1057 | 156.0242 | 91.3713 | 1.00285 | – |
| 2026 May 25 17:57 | 2026 May 21 13:11:38 | 14.1699 | 0.00025 | 23.1080 | 153.9740 | 91.3713 | 1.00285 | – |
| 2026 May 24 17:57 | 2026 May 21 13:11:38 | 14.1699 | 0.00025 | 23.1080 | 153.9740 | 91.3713 | 1.00285 | – |
| 2026 May 23 17:58 | 2026 May 21 13:11:38 | 14.1699 | 0.00025 | 23.1080 | 153.9740 | 91.3713 | 1.00285 | – |
| 2026 May 22 17:57 | 2026 May 21 13:11:38 | 14.1699 | 0.00025 | 23.1080 | 153.9740 | 91.3713 | 1.00285 | – |