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 Dec 19 18:57 | 2025 Dec 12 01:49:53 | 14.2498 | 0.00033 | 23.1886 | 196.4944 | 355.2687 | 1.00324 | – |
| 2025 Dec 18 18:57 | 2025 Dec 12 01:49:53 | 14.2498 | 0.00033 | 23.1886 | 196.4944 | 355.2687 | 1.00324 | – |
| 2025 Dec 17 18:58 | 2025 Dec 12 01:49:53 | 14.2498 | 0.00033 | 23.1886 | 196.4944 | 355.2687 | 1.00324 | – |
| 2025 Dec 16 18:57 | 2025 Dec 12 01:49:53 | 14.2498 | 0.00033 | 23.1886 | 196.4944 | 355.2687 | 1.00324 | – |
| 2025 Dec 15 18:58 | 2025 Dec 12 01:49:53 | 14.2498 | 0.00033 | 23.1886 | 196.4944 | 355.2687 | 1.00324 | – |
| 2025 Dec 14 18:56 | 2025 Dec 12 01:49:53 | 14.2498 | 0.00033 | 23.1886 | 196.4944 | 355.2687 | 1.00324 | – |
| 2025 Dec 13 18:56 | 2025 Dec 12 01:49:53 | 14.2498 | 0.00033 | 23.1886 | 196.4944 | 355.2687 | 1.00324 | – |
| 2025 Dec 12 18:57 | 2025 Dec 12 01:49:53 | 14.2498 | 0.00033 | 23.1886 | 196.4944 | 355.2687 | 1.00324 | – |
| 2025 Dec 11 18:56 | 2025 Dec 07 01:59:00 | 14.2523 | 0.00034 | 23.1911 | 194.6383 | 355.2687 | 1.00324 | – |
| 2025 Dec 10 18:56 | 2025 Dec 07 01:59:00 | 14.2523 | 0.00034 | 23.1911 | 194.6383 | 355.2687 | 1.00324 | – |
| 2025 Dec 09 18:56 | 2025 Dec 07 01:59:00 | 14.2523 | 0.00034 | 23.1911 | 194.6383 | 355.2687 | 1.00324 | – |
| 2025 Dec 08 18:56 | 2025 Dec 07 01:59:00 | 14.2523 | 0.00034 | 23.1911 | 194.6383 | 355.2687 | 1.00324 | – |
| 2025 Dec 07 18:56 | 2025 Dec 07 01:59:00 | 14.2523 | 0.00034 | 23.1911 | 194.6383 | 355.2687 | 1.00324 | – |
| 2025 Dec 06 18:56 | 2025 Dec 02 02:07:45 | 14.2548 | 0.00035 | 23.1936 | 194.2340 | 355.2687 | 1.00324 | – |
| 2025 Dec 05 18:57 | 2025 Dec 02 02:07:45 | 14.2548 | 0.00035 | 23.1936 | 194.2340 | 355.2687 | 1.00324 | – |
| 2025 Dec 04 18:57 | 2025 Dec 02 02:07:45 | 14.2548 | 0.00035 | 23.1936 | 194.2340 | 355.2687 | 1.00324 | – |
| 2025 Dec 03 18:56 | 2025 Dec 02 02:07:45 | 14.2548 | 0.00035 | 23.1936 | 194.2340 | 355.2687 | 1.00324 | – |
| 2025 Dec 02 18:56 | 2025 Dec 02 02:07:45 | 14.2548 | 0.00035 | 23.1936 | 194.2340 | 355.2687 | 1.00324 | – |
| 2025 Nov 30 18:57 | 2025 Nov 25 02:19:37 | 14.2584 | 0.00037 | 23.1971 | 194.1965 | 355.2687 | 1.00324 | – |
| 2025 Nov 29 18:56 | 2025 Nov 25 02:19:37 | 14.2584 | 0.00037 | 23.1971 | 194.1965 | 355.2687 | 1.00324 | – |
| 2025 Nov 28 18:57 | 2025 Nov 25 02:19:37 | 14.2584 | 0.00037 | 23.1971 | 194.1965 | 355.2687 | 1.00324 | – |
| 2025 Nov 27 18:57 | 2025 Nov 25 02:19:37 | 14.2584 | 0.00037 | 23.1971 | 194.1965 | 355.2687 | 1.00324 | – |
| 2025 Nov 26 18:57 | 2025 Nov 25 02:19:37 | 14.2584 | 0.00037 | 23.1971 | 194.1965 | 355.2687 | 1.00324 | – |
| 2025 Nov 25 18:57 | 2025 Nov 25 02:19:37 | 14.2584 | 0.00037 | 23.1971 | 194.1965 | 355.2687 | 1.00324 | – |
| 2025 Nov 24 18:56 | 2025 Nov 20 02:28:10 | 14.2610 | 0.00039 | 23.1996 | 192.6593 | 355.2687 | 1.00324 | – |
| 2025 Nov 23 18:57 | 2025 Nov 20 02:28:10 | 14.2610 | 0.00039 | 23.1996 | 192.6593 | 355.2687 | 1.00324 | – |