IRIDIUM 166, 43570
Orbit data source: Space-Track
IRIDIUM 166, 43570 is a payload satellite owned by Iridium (US) in LEO that was launched on Wed, 25 Jul 2018 UTC via an FALCON 9 launch vehicle from the Air Force Western Test Range (AFWTR). Payload-class satellites include a variety of spacecraft equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.
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43570 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
NGIS SSG Gilbert
Mission
Operational Commercial Communications
Bus & Motor
ELITEBUS, Unknown motor
Mass
860 kg wet, 700 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Trap Box + 2 Pan, 4.8 m
Radar Cross Section
10.154 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 7 hours ago
TLE from 7 hours ago
0 IRIDIUM 166
1 43570U 18061B 26304.13433576 .00000175 00000-0 55430-4 0 9996
2 43570 86.4002 359.9220 0002243 96.1685 263.9766 14.34217956432883Epoch: 2026-10-31T03:13Z
TLE epoch observation values (Epoch: 2026-10-31T03:13:26.609Z)
Latitude
-0.00008°
Longitude
-87.8833°
Altitude
780.886 km
Speed
7.463 km/s
True Right ascension
23h 59m 41s
True Declination
0° 00' 00"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
05:45:57
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.235 km
Perigee altitude
773.027 km
Semi-major axis
7,152.768 km
Eccentricity
0.00022
Inclination
86.4002°
RAAN
359.922°
Arg. of periapsis
96.1685°
True anomaly
263.95104°
Mean anomaly
263.9766°
Eccentric anomaly
263.96382°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
0.00005543
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Other satellites on launch #61 in the year 2018 (2018-07-25 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.IRIDIUM 166 Visibility forecast
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Span | Click to sort rows by Start time (UTC) header in descending order | Start Az. | Max El. time (UTC) | Max El. Az. | Max El. | End time (UTC) | End Az. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2026-10-31 15:31:31.372Z | 14.612° NNE | 2026-10-31 15:35:31.372Z | 79.625° E | 44.354° | 2026-10-31 15:40:31.372Z | 155.305° SSE |
| 6 mins | 2026-10-31 17:13:31.372Z | 313.308° NW | 2026-10-31 17:15:31.372Z | 286.45° WNW | 19.704° | 2026-10-31 17:19:31.372Z | 235.19° WSW |
| 10 mins | 2026-11-01 04:26:31.372Z | 183.216° SSW | 2026-11-01 04:31:31.372Z | 260.648° W | 84.493° | 2026-11-01 04:36:31.372Z | 1.151° NNE |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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