▸Orbital parameters

Orbit class	LEO
Inclination	69.9990°
Eccentricity	0.0003752
Period	96.1 min
Apogee	575 km
Perigee	570 km
Mean motion	14.98325087 rev/day
RAAN	243.2715°
Arg of perigee	265.7274°
Mean anomaly	94.3456°
B*	-1.3378e-5
Rev at epoch	18,668

▸Two-line element set (TLE)

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

1 55639U 23021M 26188.13600788 -.00000253 00000-0 -13378-4 0 9992

2 55639 69.9990 243.2715 0003752 265.7274 94.3456 14.98325087186683

▸ source OMM (JSON)

{
  "OBJECT_NAME": "STARLINK-5508",
  "OBJECT_ID": "2023-021M",
  "EPOCH": "2026-07-07T03:15:51.081+00:00",
  "MEAN_MOTION": 14.98325087,
  "ECCENTRICITY": 0.0003752,
  "INCLINATION": 69.999,
  "RA_OF_ASC_NODE": 243.2715,
  "ARG_OF_PERICENTER": 265.7274,
  "MEAN_ANOMALY": 94.3456,
  "EPHEMERIS_TYPE": 0,
  "CLASSIFICATION_TYPE": "U",
  "NORAD_CAT_ID": 55639,
  "REV_AT_EPOCH": 18668,
  "BSTAR": -0.000013378,
  "MEAN_MOTION_DOT": -0.00000253,
  "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-5508
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/55639

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