IRIDIUM 158, 43571
Orbit data source: Space-Track
IRIDIUM 158, 43571 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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43571 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: 11 hours ago
TLE from 11 hours ago
0 IRIDIUM 158
1 43571U 18061C 25351.30701862 .00000330 00000-0 11078-3 0 9995
2 43571 86.3979 132.8070 0001858 99.2741 260.8665 14.34216027387291Epoch: 2025-12-17T07:22Z
TLE epoch observation values (Epoch: 2025-12-17T07:22:06.408Z)
Latitude
-0.00004°
Longitude
-63.89846°
Altitude
780.935 km
Speed
7.463 km/s
True Right ascension
08h 51m 13s
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
16:43:34
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
775.966 km
Perigee altitude
773.308 km
Semi-major axis
7,152.774 km
Eccentricity
0.00019
Inclination
86.3979°
RAAN
132.807°
Arg. of periapsis
99.2741°
True anomaly
260.84548°
Mean anomaly
260.8665°
Eccentric anomaly
260.85599°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
0.00011078
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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 158 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 | 2025-12-17 21:20:36.026Z | 11.928° NNE | 2025-12-17 21:24:36.026Z | 77.309° E | 37.175° | 2025-12-17 21:29:36.026Z | 158.644° S |
| 4 mins | 2025-12-17 23:03:36.026Z | 300.45° NW | 2025-12-17 23:04:36.026Z | 286.636° WNW | 16.843° | 2025-12-17 23:07:36.026Z | 246.971° WSW |
| 9 mins | 2025-12-18 10:16:36.026Z | 188.109° SSW | 2025-12-18 10:20:36.026Z | 256.814° W | 44.087° | 2025-12-18 10:25:36.026Z | 358.919° 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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