▸Orbital parameters

Orbit class	MEO
Inclination	55.6406°
Eccentricity	0.0011824
Period	773.2 min
Apogee	21,561 km
Perigee	21,495 km
Mean motion	1.86229838 rev/day
RAAN	303.4567°
Arg of perigee	273.7127°
Mean anomaly	86.1743°
B*	0.0000e+0
Rev at epoch	9,629

▸Two-line element set (TLE)

EPOCH Jul 5, 2026SOURCE CelesTrakDERIVED currentUPDATED Jul 7, 2026

1 38251U 12018B 26186.91456640 -.00000061 00000-0 00000-0 0 9997

2 38251 55.6406 303.4567 0011824 273.7127 86.1743 1.86229838 96292

▸ source OMM (JSON)

{
  "OBJECT_NAME": "BEIDOU-2 M4",
  "OBJECT_ID": "2012-018B",
  "EPOCH": "2026-07-05T21:56:58.537+00:00",
  "MEAN_MOTION": 1.86229838,
  "ECCENTRICITY": 0.0011824,
  "INCLINATION": 55.6406,
  "RA_OF_ASC_NODE": 303.4567,
  "ARG_OF_PERICENTER": 273.7127,
  "MEAN_ANOMALY": 86.1743,
  "EPHEMERIS_TYPE": 0,
  "CLASSIFICATION_TYPE": "U",
  "NORAD_CAT_ID": 38251,
  "REV_AT_EPOCH": 9629,
  "BSTAR": 0,
  "MEAN_MOTION_DOT": -6.1e-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	BEIDOU-2 M4
Operator	China National Space AdministrationHIGHvia GCAT — Jonathan McDowell's General Catalog
Country	People's Republic of ChinaMEDIUMvia Wikidata
Launch date	Apr 29, 2012HIGHvia GCAT — Jonathan McDowell's General Catalog
Launch mass (kg)	2300HIGHvia GCAT — Jonathan McDowell's General Catalog
Mission purpose	—

▸Data quality

Score90 / 100

Claims8

Sources2

TLEavailable

▸Sources

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

▸Actions

GET /api/v1/satellites/38251

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