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STTW-4
Launch Details
| Launched | 3 February 1990 |
| Flight ended | – |
| Status | Non-operational |
| Launch site | Xichang Launch Facility, PRC |
| Owner | People's Republic of China |
| NORAD ID | 20473 |
| COSPAR ID | 1990-011A |
| Alternative names |
SHIYAN TONGBU TONGXING WEIXING 4 DONG FANG HONG-2A 4 DFH-2A 4 CHINASAT 3 ZHONGXING 3 ZX 3 |
| Observing |
Current orbital elements
| Inclination | 14.293° |
| Eccentricity | 0.00049 |
| RA ascending node | 23.233 hr |
| Argument perigee | 171.194° |
| Mean anomaly | 183.478° |
| Orbital period | 1435.616 min |
| Epoch of osculation | 14 Sep 2025, 19:27 |