▸Orbital parameters

Orbit class	LEO
Inclination	53.1562°
Eccentricity	0.0001109
Period	94.0 min
Apogee	472 km
Perigee	470 km
Mean motion	15.31671102 rev/day
RAAN	201.2627°
Arg of perigee	102.4800°
Mean anomaly	257.6326°
B*	1.3587e-4
Rev at epoch	30,168

▸Two-line element set (TLE)

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

1 47399U 21005BC 26188.06859323 .00003850 00000-0 13587-3 0 9994

2 47399 53.1562 201.2627 0001109 102.4800 257.6326 15.31671102301688

▸ source OMM (JSON)

{
  "OBJECT_NAME": "STARLINK-2121",
  "OBJECT_ID": "2021-005BC",
  "EPOCH": "2026-07-07T01:38:46.455+00:00",
  "MEAN_MOTION": 15.31671102,
  "ECCENTRICITY": 0.0001109,
  "INCLINATION": 53.1562,
  "RA_OF_ASC_NODE": 201.2627,
  "ARG_OF_PERICENTER": 102.48,
  "MEAN_ANOMALY": 257.6326,
  "EPHEMERIS_TYPE": 0,
  "CLASSIFICATION_TYPE": "U",
  "NORAD_CAT_ID": 47399,
  "REV_AT_EPOCH": 30168,
  "BSTAR": 0.00013587,
  "MEAN_MOTION_DOT": 0.0000385,
  "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	STARLINK-2121
Operator	SpaceX (Seattle)HIGHvia GCAT — Jonathan McDowell's General Catalog
Country	United States
Launch date	Jan 20, 2021HIGHvia GCAT — Jonathan McDowell's General Catalog
Launch mass (kg)	260HIGHvia 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/47399

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