SHIJIAN-31 (SJ-31) is a payload in HEO orbit, operated by General Armaments Dept. of the PLA / Shanghai Academy of Space Technology (CASC 8th Acad), launched 2026.
| Orbit class | HEO |
| Inclination | 63.4839° |
| Eccentricity | 0.6940542 |
| Period | 749.1 min |
| Apogee | 39,909 km |
| Perigee | 1,981 km |
| Mean motion | 1.92222044 rev/day |
| RAAN | 354.0648° |
| Arg of perigee | 171.8102° |
| Mean anomaly | 212.3631° |
| B* | 0.0000e+0 |
| Rev at epoch | 46 |
1 69570U 26136A 26187.74292627 .00000243 00000-0 00000-0 0 99972 69570 63.4839 354.0648 6940542 171.8102 212.3631 1.92222044 466{
"OBJECT_NAME": "SHIJIAN-31 (SJ-31)",
"OBJECT_ID": "2026-136A",
"EPOCH": "2026-07-06T17:49:48.83+00:00",
"MEAN_MOTION": 1.92222044,
"ECCENTRICITY": 0.6940542,
"INCLINATION": 63.4839,
"RA_OF_ASC_NODE": 354.0648,
"ARG_OF_PERICENTER": 171.8102,
"MEAN_ANOMALY": 212.3631,
"EPHEMERIS_TYPE": 0,
"CLASSIFICATION_TYPE": "U",
"NORAD_CAT_ID": 69570,
"REV_AT_EPOCH": 46,
"BSTAR": 0,
"MEAN_MOTION_DOT": 0.00000243,
"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 | SHIJIAN-31 (SJ-31) |
| Operator | General Armaments Dept. of the PLA / Shanghai Academy of Space Technology (CASC 8th Acad)HIGHvia GCAT — Jonathan McDowell's General Catalog |
| Country | China |
| Launch date | |
| Launch mass (kg) | |
| Mission purpose | — |
| Object class | PAYLOADHIGH |
//Orbital data is approximate and not for operational use. Last ingested from CelesTrak on Jul 7, 2026.
| Orbital regime |
| Status |