SHIYAN-1 (SY-1) is a payload in SSO orbit, operated by China Aerospace Corp, launched 2004.
| Orbit class | SSO |
| Inclination | 97.8681° |
| Eccentricity | 0.0004151 |
| Period | 93.9 min |
| Apogee | 466 km |
| Perigee | 460 km |
| Mean motion | 15.34307947 rev/day |
| RAAN | 267.5156° |
| Arg of perigee | 313.3427° |
| Mean anomaly | 46.7468° |
| B* | 3.2771e-4 |
| Rev at epoch | 21,415 |
1 28220U 04012A 26188.14405066 .00010804 00000-0 32771-3 0 99982 28220 97.8681 267.5156 0004151 313.3427 46.7468 15.34307947214152{
"OBJECT_NAME": "SHIYAN-1 (SY-1)",
"OBJECT_ID": "2004-012A",
"EPOCH": "2026-07-07T03:27:25.977+00:00",
"MEAN_MOTION": 15.34307947,
"ECCENTRICITY": 0.0004151,
"INCLINATION": 97.8681,
"RA_OF_ASC_NODE": 267.5156,
"ARG_OF_PERICENTER": 313.3427,
"MEAN_ANOMALY": 46.7468,
"EPHEMERIS_TYPE": 0,
"CLASSIFICATION_TYPE": "U",
"NORAD_CAT_ID": 28220,
"REV_AT_EPOCH": 21415,
"BSTAR": 0.00032771,
"MEAN_MOTION_DOT": 0.00010804,
"MEAN_MOTION_DDOT": 0
}Reconstructed from CelesTrak OMM mean-elements (element-set number is a placeholder). TLE/OMM data is approximate. Not for operational use or collision avoidance.
| Name | SHIYAN-1 (SY-1) |
| Operator | |
| Country | China |
| Launch date | |
| Launch mass (kg) | |
| Mission purpose | — |
| Object class |
//Orbital data is approximate and not for operational use. Last ingested from CelesTrak on Jul 7, 2026.
| Orbital regime |
| Status |