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: 10 hours ago
TLE from 10 hours ago
0 IRIDIUM 166
1 43570U 18061B 25351.33873326 .00000211 00000-0 68302-4 0 9993
2 43570 86.3978 132.7837 0002139 92.0445 268.0996 14.34217491387332Epoch: 2025-12-17T08:07Z
TLE epoch observation values (Epoch: 2025-12-17T08:07:46.553Z)
Latitude
-0.00001°
Longitude
-75.37029°
Altitude
780.77 km
Speed
7.463 km/s
True Right ascension
08h 51m 08s
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
16:37:53
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.162 km
Perigee altitude
773.103 km
Semi-major axis
7,152.769 km
Eccentricity
0.00021
Inclination
86.3978°
RAAN
132.7837°
Arg. of periapsis
92.0445°
True anomaly
268.0751°
Mean anomaly
268.0996°
Eccentric anomaly
268.08735°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
0.000068302
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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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2025-12-17 20:26:55.304Z | 44.194° NE | 2025-12-17 20:28:55.304Z | 68.184° E | 14.526° | 2025-12-17 20:31:55.304Z | 105.419° ESE |
| 8 mins | 2025-12-17 22:06:55.304Z | 345.282° N | 2025-12-17 22:10:55.304Z | 250.623° W | 40.072° | 2025-12-17 22:14:55.304Z | 194.847° SSW |
| 7 mins | 2025-12-18 09:22:55.304Z | 135° SSE | 2025-12-18 09:25:55.304Z | 85.89° E | 27.669° | 2025-12-18 09:29:55.304Z | 26.646° NE |
| 7 mins | 2025-12-18 11:03:55.304Z | 235.971° WSW | 2025-12-18 11:06:55.304Z | 285.293° WNW | 24.693° | 2025-12-18 11:10:55.304Z | 337.667° N |
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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