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, 4.7 m
Radar Cross Section
14.423 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 20 hours ago
TLE from 20 hours ago
0 IRIDIUM 166
1 43570U 18061B 25260.22104763 .00000003 00000-0 -59378-5 0 9996
2 43570 86.4045 170.8266 0002252 79.4421 280.7029 14.34217608374273Epoch: 2025-09-17T05:18Z
TLE epoch observation values (Epoch: 2025-09-17T05:18:18.515Z)
Latitude
0.00005°
Longitude
94.84935°
Altitude
780.42 km
Speed
7.464 km/s
True Right ascension
11h 23m 18s
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
17:43:41
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.243 km
Perigee altitude
773.021 km
Semi-major axis
7,152.769 km
Eccentricity
0.00023
Inclination
86.4045°
RAAN
170.8266°
Arg. of periapsis
79.4421°
True anomaly
280.67754°
Mean anomaly
280.7029°
Eccentric anomaly
280.69022°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
-0.0000059378
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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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2025-09-18 05:19:20.626Z | 23.596° NE | 2025-09-18 05:23:20.626Z | 75.572° E | 23.58° | 2025-09-18 05:27:20.626Z | 131.773° SE |
| 7 mins | 2025-09-18 07:01:20.626Z | 326.402° NNW | 2025-09-18 07:04:20.626Z | 273.191° WNW | 28.943° | 2025-09-18 07:08:20.626Z | 215.34° SW |
| 8 mins | 2025-09-18 18:16:20.626Z | 158.748° S | 2025-09-18 18:19:20.626Z | 105.4° ESE | 39.011° | 2025-09-18 18:24:20.626Z | 12.682° NNE |
| 4 mins | 2025-09-18 19:59:20.626Z | 265.538° W | 2025-09-18 20:00:20.626Z | 278.717° WNW | 15.391° | 2025-09-18 20:03:20.626Z | 316.873° NNW |
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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