▸Orbital parameters

Orbit class	LEO
Inclination	34.9941°
Eccentricity	0.0008594
Period	95.0 min
Apogee	523 km
Perigee	511 km
Mean motion	15.16467586 rev/day
RAAN	28.6768°
Arg of perigee	138.9491°
Mean anomaly	221.1870°
B*	2.5946e-4
Rev at epoch	15,847

▸Two-line element set (TLE)

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

1 57731U 23130E 26188.00531884 .00005140 00000-0 25946-3 0 9995

2 57731 34.9941 28.6768 0008594 138.9491 221.1870 15.16467586158478

▸ source OMM (JSON)

{
  "OBJECT_NAME": "YAOGAN-39 01C",
  "OBJECT_ID": "2023-130E",
  "EPOCH": "2026-07-07T00:07:39.548+00:00",
  "MEAN_MOTION": 15.16467586,
  "ECCENTRICITY": 0.0008594,
  "INCLINATION": 34.9941,
  "RA_OF_ASC_NODE": 28.6768,
  "ARG_OF_PERICENTER": 138.9491,
  "MEAN_ANOMALY": 221.187,
  "EPHEMERIS_TYPE": 0,
  "CLASSIFICATION_TYPE": "U",
  "NORAD_CAT_ID": 57731,
  "REV_AT_EPOCH": 15847,
  "BSTAR": 0.00025946,
  "MEAN_MOTION_DOT": 0.0000514,
  "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	YAOGAN-39 01C
Operator	General Armaments Dept. of the PLAHIGHvia GCAT — Jonathan McDowell's General Catalog
Country	China
Launch date	Aug 31, 2023HIGHvia GCAT — Jonathan McDowell's General Catalog
Launch mass (kg)	300HIGHvia GCAT — Jonathan McDowell's General Catalog
Mission purpose	—
Object class	PAYLOADHIGH

▸Data quality

Score85 / 100

Claims7

Sources1

TLEavailable

▸Sources

GCAT — Jonathan McDowell's General CatalogCC BY 4.0planet4589.org

▸Actions

GET /api/v1/satellites/57731

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