▸Orbital parameters

Orbit class	LEO
Inclination	69.9999°
Eccentricity	0.0002993
Period	96.1 min
Apogee	574 km
Perigee	570 km
Mean motion	14.98349184 rev/day
RAAN	264.5218°
Arg of perigee	272.3922°
Mean anomaly	87.6894°
B*	1.7457e-4
Rev at epoch	18,611

▸Two-line element set (TLE)

EPOCH Jul 6, 2026SOURCE CelesTrakDERIVED currentUPDATED Jul 7, 2026

1 55631U 23021D 26187.61030911 .00001992 00000-0 17457-3 0 9991

2 55631 69.9999 264.5218 0002993 272.3922 87.6894 14.98349184186111

▸ source OMM (JSON)

{
  "OBJECT_NAME": "STARLINK-5558",
  "OBJECT_ID": "2023-021D",
  "EPOCH": "2026-07-06T14:38:50.707+00:00",
  "MEAN_MOTION": 14.98349184,
  "ECCENTRICITY": 0.0002993,
  "INCLINATION": 69.9999,
  "RA_OF_ASC_NODE": 264.5218,
  "ARG_OF_PERICENTER": 272.3922,
  "MEAN_ANOMALY": 87.6894,
  "EPHEMERIS_TYPE": 0,
  "CLASSIFICATION_TYPE": "U",
  "NORAD_CAT_ID": 55631,
  "REV_AT_EPOCH": 18611,
  "BSTAR": 0.00017457,
  "MEAN_MOTION_DOT": 0.00001992,
  "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-5558
Operator	SpaceX (Seattle)HIGHvia GCAT — Jonathan McDowell's General Catalog
Country	United States
Launch date	Feb 17, 2023HIGHvia GCAT — Jonathan McDowell's General Catalog
Launch mass (kg)	305HIGHvia 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/55631

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