▸Orbital parameters

Orbit class	SSO
Inclination	97.2821°
Eccentricity	0.0002403
Period	94.6 min
Apogee	503 km
Perigee	500 km
Mean motion	15.21421815 rev/day
RAAN	255.2570°
Arg of perigee	227.7887°
Mean anomaly	132.3145°
B*	9.5302e-5
Rev at epoch	33,038

▸Two-line element set (TLE)

EPOCH Jul 7, 2026SOURCE CelesTrakDERIVED currentUPDATED Jul 7, 2026

1 45939U 20051A 26188.17947434 .00002072 00000-0 95302-4 0 9996

2 45939 97.2821 255.2570 0002403 227.7887 132.3145 15.21421815330383

▸ source OMM (JSON)

{
  "OBJECT_NAME": "ZIYUAN 3-03 (ZY 3-03)",
  "OBJECT_ID": "2020-051A",
  "EPOCH": "2026-07-07T04:18:26.583+00:00",
  "MEAN_MOTION": 15.21421815,
  "ECCENTRICITY": 0.0002403,
  "INCLINATION": 97.2821,
  "RA_OF_ASC_NODE": 255.257,
  "ARG_OF_PERICENTER": 227.7887,
  "MEAN_ANOMALY": 132.3145,
  "EPHEMERIS_TYPE": 0,
  "CLASSIFICATION_TYPE": "U",
  "NORAD_CAT_ID": 45939,
  "REV_AT_EPOCH": 33038,
  "BSTAR": 0.000095302,
  "MEAN_MOTION_DOT": 0.00002072,
  "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.

▸Satellite metadata

Name	ZIYUAN 3-03 (ZY 3-03)
Operator	State Surveying and Mapping Geographic Information Bureau / China Resources Satellite Applications Center (CRESDA)HIGHvia GCAT — Jonathan McDowell's General Catalog⚠ sources disagree Ministry of Land and Resources of the People's Republic of ChinaMEDIUMvia Wikidata
Country	People's Republic of ChinaMEDIUMvia Wikidata
Launch date	Jul 25, 2020HIGHvia GCAT — Jonathan McDowell's General Catalog
Launch mass (kg)

▸Data quality

Score90 / 100

Claims9

Sources2

TLEavailable

▸Sources

GCAT — Jonathan McDowell's General CatalogCC BY 4.0planet4589.org
WikidataCC0 1.0query.wikidata.org

▸Actions

GET /api/v1/satellites/45939

//Orbital data is approximate and not for operational use. Last ingested from CelesTrak on Jul 7, 2026.