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 26256.62197062 -.00000021 00000-0 -14645-4 0 9998
2 43570 86.3998 19.7603 0001950 93.5398 266.6021 14.34216499426077Epoch: 2026-09-13T14:55Z
TLE epoch observation values (Epoch: 2026-09-13T14:55:38.261Z)
Latitude
-0.00001°
Longitude
163.2369°
Altitude
780.805 km
Speed
7.463 km/s
True Right ascension
01h 19m 02s
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
14:21:53
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.031 km
Perigee altitude
773.241 km
Semi-major axis
7,152.773 km
Eccentricity
0.0002
Inclination
86.3998°
RAAN
19.7603°
Arg. of periapsis
93.5398°
True anomaly
266.57979°
Mean anomaly
266.6021°
Eccentric anomaly
266.59095°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
-0.000014645
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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 | 2026-09-14 07:48:45.925Z | 120.627° SE | 2026-09-14 07:51:45.925Z | 78.932° E | 21.406° | 2026-09-14 07:54:45.925Z | 39.031° NE |
| 8 mins | 2026-09-14 09:28:45.925Z | 216.543° SW | 2026-09-14 09:31:45.925Z | 269.37° W | 40.848° | 2026-09-14 09:36:45.925Z | 347.013° N |
| 8 mins | 2026-09-14 19:58:45.925Z | 14.481° NNE | 2026-09-14 20:02:45.925Z | 93.391° ESE | 48.303° | 2026-09-14 20:06:45.925Z | 155.696° SSE |
| 5 mins | 2026-09-14 21:40:45.925Z | 307.873° NW | 2026-09-14 21:42:45.925Z | 280.624° WNW | 18.231° | 2026-09-14 21:45:45.925Z | 242.585° 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 descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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