▸Orbital parameters

Orbit class	LEO
Inclination	86.3964°
Eccentricity	0.0002242
Period	100.4 min
Apogee	779 km
Perigee	776 km
Mean motion	14.34220152 rev/day
RAAN	16.9506°
Arg of perigee	83.5960°
Mean anomaly	276.5491°
B*	6.1386e-5
Rev at epoch	45,764

▸Two-line element set (TLE)

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

1 42958U 17061D 26188.04243310 .00000192 00000-0 61386-4 0 9995

2 42958 86.3964 16.9506 0002242 83.5960 276.5491 14.34220152457648

▸ source OMM (JSON)

{
  "OBJECT_NAME": "IRIDIUM 129",
  "OBJECT_ID": "2017-061D",
  "EPOCH": "2026-07-07T01:01:06.22+00:00",
  "MEAN_MOTION": 14.34220152,
  "ECCENTRICITY": 0.0002242,
  "INCLINATION": 86.3964,
  "RA_OF_ASC_NODE": 16.9506,
  "ARG_OF_PERICENTER": 83.596,
  "MEAN_ANOMALY": 276.5491,
  "EPHEMERIS_TYPE": 0,
  "CLASSIFICATION_TYPE": "U",
  "NORAD_CAT_ID": 42958,
  "REV_AT_EPOCH": 45764,
  "BSTAR": 0.000061386,
  "MEAN_MOTION_DOT": 0.00000192,
  "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	IRIDIUM 129
Operator	Iridium Satellite LLCHIGHvia GCAT — Jonathan McDowell's General Catalog
Country	United States
Launch date	Oct 9, 2017HIGHvia GCAT — Jonathan McDowell's General Catalog
Launch mass (kg)	860HIGHvia 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/42958

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