▸Orbital parameters

Orbit class	GEO
Inclination	0.0178°
Eccentricity	0.0000463
Period	1436.1 min
Apogee	35,789 km
Perigee	35,785 km
Mean motion	1.00269062 rev/day
RAAN	350.4254°
Arg of perigee	17.7985°
Mean anomaly	351.7769°
B*	0.0000e+0
Rev at epoch	722

▸Two-line element set (TLE)

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

1 50002U 21123B 26186.92555071 .00000000 00000-0 00000-0 0 9993

2 50002 0.0178 350.4254 0000463 17.7985 351.7769 1.00269062 7223

▸ source OMM (JSON)

{
  "OBJECT_NAME": "EXPRESS AMU-3",
  "OBJECT_ID": "2021-123B",
  "EPOCH": "2026-07-05T22:12:47.581+00:00",
  "MEAN_MOTION": 1.00269062,
  "ECCENTRICITY": 0.0000463,
  "INCLINATION": 0.0178,
  "RA_OF_ASC_NODE": 350.4254,
  "ARG_OF_PERICENTER": 17.7985,
  "MEAN_ANOMALY": 351.7769,
  "EPHEMERIS_TYPE": 0,
  "CLASSIFICATION_TYPE": "U",
  "NORAD_CAT_ID": 50002,
  "REV_AT_EPOCH": 722,
  "BSTAR": 0,
  "MEAN_MOTION_DOT": 0,
  "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	EXPRESS AMU-3
Operator	Russian Satellite Communications Co.HIGHvia GCAT — Jonathan McDowell's General Catalog⚠ sources disagree Russian Satellite Communications CompanyMEDIUMvia Wikidata
Country	Russia
Launch date	Dec 13, 2021HIGHvia GCAT — Jonathan McDowell's General Catalog
Launch mass (kg)	2150HIGHvia GCAT — Jonathan McDowell's General Catalog⚠

▸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/50002

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