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: 2 days ago
TLE from 2 days ago
0 IRIDIUM 166
1 43570U 18061B 26171.43461166 .00000046 00000-0 91983-5 0 9998
2 43570 86.3959 55.3901 0002138 87.2648 272.8793 14.34217963413863Epoch: 2026-06-20T10:25Z
TLE epoch observation values (Epoch: 2026-06-20T10:25:50.447Z)
Latitude
0.00003°
Longitude
-9.71938°
Altitude
780.641 km
Speed
7.464 km/s
True Right ascension
03h 41m 33s
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
21:37:28
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.16 km
Perigee altitude
773.102 km
Semi-major axis
7,152.768 km
Eccentricity
0.00021
Inclination
86.3959°
RAAN
55.3901°
Arg. of periapsis
87.2648°
True anomaly
272.85483°
Mean anomaly
272.8793°
Eccentric anomaly
272.86707°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
0.0000091983
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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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2026-06-22 16:07:26.090Z | 153.442° SSE | 2026-06-22 16:12:26.090Z | 71.276° E | 32.73° | 2026-06-22 16:16:26.090Z | 18.788° NNE |
| 6 mins | 2026-06-22 17:50:26.090Z | 247.843° W | 2026-06-22 17:52:26.090Z | 276.352° WNW | 19.903° | 2026-06-22 17:56:26.090Z | 329.577° NNW |
| 9 mins | 2026-06-23 04:18:26.090Z | 356.043° N | 2026-06-23 04:23:26.090Z | 203.157° SW | 44.237° | 2026-06-23 04:27:26.090Z | 181.634° SSW |
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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