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: 5 hours ago
TLE from 5 hours ago
0 IRIDIUM 166
1 43570U 18061B 26308.45998190 .00000159 00000-0 49646-4 0 9997
2 43570 86.3996 358.1150 0002266 95.6827 264.4627 14.34219006433504Epoch: 2026-11-04T11:02Z
TLE epoch observation values (Epoch: 2026-11-04T11:02:22.436Z)
Latitude
-0.00003°
Longitude
148.81353°
Altitude
780.871 km
Speed
7.463 km/s
True Right ascension
23h 52m 27s
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
12:17:46
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.248 km
Perigee altitude
773.007 km
Semi-major axis
7,152.764 km
Eccentricity
0.00023
Inclination
86.3996°
RAAN
358.115°
Arg. of periapsis
95.6827°
True anomaly
264.43686°
Mean anomaly
264.4627°
Eccentric anomaly
264.44978°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
0.000049646
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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 | 2026-11-04 16:38:32.033Z | 330.982° NNW | 2026-11-04 16:42:32.033Z | 279.942° WNW | 25.131° | 2026-11-04 16:46:32.033Z | 226.056° WSW |
| 8 mins | 2026-11-05 03:54:32.033Z | 173.127° S | 2026-11-05 03:58:32.033Z | 47.855° ENE | 71.501° | 2026-11-05 04:02:32.033Z | 6.545° NNE |
| 5 mins | 2026-11-05 14:26:32.033Z | 50.114° ENE | 2026-11-05 14:28:32.033Z | 78.966° E | 19.365° | 2026-11-05 14:31:32.033Z | 117.398° SE |
| 8 mins | 2026-11-05 16:05:32.033Z | 340.012° N | 2026-11-05 16:09:32.033Z | 265.916° W | 45.767° | 2026-11-05 16:13:32.033Z | 204.255° SW |
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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