ZHANGHENG 1-01 (CSES-1) is a payload in SSO orbit, operated by Chinese Academy of Sciences, launched 2018.
| Orbit class | SSO |
| Inclination | 97.6891° |
| Eccentricity | 0.0018105 |
| Period | 94.7 min |
| Apogee | 515 km |
| Perigee | 490 km |
| Mean motion | 15.21088786 rev/day |
| RAAN | 354.2655° |
| Arg of perigee | 193.2398° |
| Mean anomaly | 166.8364° |
| B* | 2.6101e-4 |
| Rev at epoch | 46,768 |
1 43194U 18015C 26188.20516476 .00005754 00000-0 26101-3 0 99962 43194 97.6891 354.2655 0018105 193.2398 166.8364 15.21088786467684{
"OBJECT_NAME": "ZHANGHENG 1-01 (CSES-1)",
"OBJECT_ID": "2018-015C",
"EPOCH": "2026-07-07T04:55:26.235+00:00",
"MEAN_MOTION": 15.21088786,
"ECCENTRICITY": 0.0018105,
"INCLINATION": 97.6891,
"RA_OF_ASC_NODE": 354.2655,
"ARG_OF_PERICENTER": 193.2398,
"MEAN_ANOMALY": 166.8364,
"EPHEMERIS_TYPE": 0,
"CLASSIFICATION_TYPE": "U",
"NORAD_CAT_ID": 43194,
"REV_AT_EPOCH": 46768,
"BSTAR": 0.00026101,
"MEAN_MOTION_DOT": 0.00005754,
"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 | ZHANGHENG 1-01 (CSES-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 |