Satellites/IRIDIUM 181
IRIDIUM 181
Satellite · United StatesActive
NORAD Number
56726
COSPAR ID
2023-068S
Launched
2023-05-20
site code AFWTR
Orbit
LEO
Constellation
Who
Owner / operatorIridium Satellite LLC
ManufacturerNorthrop Grumman Civil Sats. and Nat. Security Systems
CountryUnited States
Catalogue owner codeUS
Orbit
OrbitingEarth
Orbit classLEO
Perigee746 km
Apogee749 km
Inclination86.45°
Period99.8 min
Radar cross-section—
Latest Orbital Elements
Epoch (UTC)2026-11-09 10:06:02
Mean motion14.43312236 rev/day
Eccentricity0.0002269
Inclination86.4527°
Right ascension of node356.1019°
Argument of perigee90.346°
Mean anomaly269.8001°
B* drag term9.0770e-5
Element set999
Revolutions at epoch18,338
Mean elements (OMM) for the SGP4 model, refreshed every 6 hours. They describe the orbit at the epoch shown and drift as time passes, fastest for low orbits.
Source: CelesTrak satellite catalogue and GP data (celestrak.org); owner and manufacturer from GCAT (J. McDowell, CC BY 4.0).