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: 16 hours ago
TLE from 16 hours ago
0 IRIDIUM 166
1 43570U 18061B 25342.96650498 .00000192 00000-0 61480-4 0 9993
2 43570 86.3974 136.2808 0002172 93.6619 266.4826 14.34215539386134Epoch: 2025-12-08T23:11Z
TLE epoch observation values (Epoch: 2025-12-08T23:11:46.030Z)
Latitude
0.00007°
Longitude
70.38106°
Altitude
780.821 km
Speed
7.463 km/s
True Right ascension
09h 05m 07s
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
13:32:45
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.193 km
Perigee altitude
773.085 km
Semi-major axis
7,152.776 km
Eccentricity
0.00022
Inclination
86.3974°
RAAN
136.2808°
Arg. of periapsis
93.6619°
True anomaly
266.45776°
Mean anomaly
266.4826°
Eccentric anomaly
266.47018°
Mean motion
3.58782 °/min
Orbital period
100.34 mins
BSTAR
0.00006148
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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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2025-12-09 21:32:45.054Z | 27.787° NE | 2025-12-09 21:36:45.054Z | 83.292° E | 22.348° | 2025-12-09 21:39:45.054Z | 125.17° SE |
| 8 mins | 2025-12-09 23:13:45.054Z | 332.834° NNW | 2025-12-09 23:17:45.054Z | 262.414° W | 29.853° | 2025-12-09 23:21:45.054Z | 211.046° SW |
| 8 mins | 2025-12-10 10:28:45.054Z | 158.895° S | 2025-12-10 10:32:45.054Z | 85.867° E | 38.126° | 2025-12-10 10:36:45.054Z | 16.152° NNE |
| 5 mins | 2025-12-10 12:11:45.054Z | 257.617° W | 2025-12-10 12:13:45.054Z | 284.452° WNW | 16.505° | 2025-12-10 12:16:45.054Z | 321.862° NNW |
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 descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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