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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Edit Public Description
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: 8 hours ago
TLE from 8 hours ago
0 IRIDIUM 166
1 43570U 18061B 25299.08211086 .00000187 00000-0 59780-4 0 9997
2 43570 86.3991 154.6137 0001844 86.2912 273.8494 14.34218450379849Epoch: 2025-10-26T01:58Z
TLE epoch observation values (Epoch: 2025-10-26T01:58:14.378Z)
Latitude
-0.00008°
Longitude
90.35037°
Altitude
780.627 km
Speed
7.464 km/s
True Right ascension
10h 18m 27s
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
05:29:42
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
775.948 km
Perigee altitude
773.31 km
Semi-major axis
7,152.766 km
Eccentricity
0.00018
Inclination
86.3991°
RAAN
154.6137°
Arg. of periapsis
86.2912°
True anomaly
273.82832°
Mean anomaly
273.8494°
Eccentric anomaly
273.83886°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
0.00005978
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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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2025-10-26 13:50:01.458Z | 115.323° SE | 2025-10-26 13:53:01.458Z | 78.345° E | 16.101° | 2025-10-26 13:56:01.458Z | 41.994° NE |
| 8 mins | 2025-10-26 15:30:01.458Z | 207.061° SW | 2025-10-26 15:33:01.458Z | 268.44° W | 38.398° | 2025-10-26 15:38:01.458Z | 351.854° N |
| 8 mins | 2025-10-27 02:00:01.458Z | 20.979° NNE | 2025-10-27 02:04:01.458Z | 93.157° ESE | 31.286° | 2025-10-27 02:08:01.458Z | 148.105° SSE |
| 6 mins | 2025-10-27 03:42:01.458Z | 310.149° NW | 2025-10-27 03:44:01.458Z | 279.116° WNW | 21.291° | 2025-10-27 03:48:01.458Z | 228.011° WSW |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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