▸Orbital parameters

Orbit class	LEO
Inclination	63.4039°
Eccentricity	0.0176580
Period	107.0 min
Apogee	1,221 km
Perigee	957 km
Mean motion	13.45449818 rev/day
RAAN	206.7686°
Arg of perigee	0.4012°
Mean anomaly	359.7124°
B*	1.8946e-4
Rev at epoch	26,114

▸Two-line element set (TLE)

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

1 47857U 21020D 26188.15305014 .00000033 00000-0 18946-3 0 9997

2 47857 63.4039 206.7686 0176580 0.4012 359.7124 13.45449818261149

▸ source OMM (JSON)

{
  "OBJECT_NAME": "YAOGAN-31 04C",
  "OBJECT_ID": "2021-020D",
  "EPOCH": "2026-07-07T03:40:23.532+00:00",
  "MEAN_MOTION": 13.45449818,
  "ECCENTRICITY": 0.017658,
  "INCLINATION": 63.4039,
  "RA_OF_ASC_NODE": 206.7686,
  "ARG_OF_PERICENTER": 0.4012,
  "MEAN_ANOMALY": 359.7124,
  "EPHEMERIS_TYPE": 0,
  "CLASSIFICATION_TYPE": "U",
  "NORAD_CAT_ID": 47857,
  "REV_AT_EPOCH": 26114,
  "BSTAR": 0.00018946,
  "MEAN_MOTION_DOT": 3.3e-7,
  "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-31 04C
Operator	Strategic Support TroopsHIGHvia GCAT — Jonathan McDowell's General Catalog
Country	China
Launch date	Mar 13, 2021HIGHvia GCAT — Jonathan McDowell's General Catalog
Launch mass (kg)	500HIGHvia 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/47857

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