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: 6 hours ago
TLE from 6 hours ago
0 IRIDIUM 158
1 43571U 18061C 26034.16822447 .00000281 00000-0 93110-4 0 9994
2 43571 86.3971 112.8166 0002363 93.7451 266.4015 14.34217796394154Epoch: 2026-02-03T04:02Z
TLE epoch observation values (Epoch: 2026-02-03T04:02:14.594Z)
Latitude
-0.00001°
Longitude
-81.09724°
Altitude
780.824 km
Speed
7.463 km/s
True Right ascension
07h 31m 15s
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
11:39:39
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.322 km
Perigee altitude
772.941 km
Semi-major axis
7,152.768 km
Eccentricity
0.00024
Inclination
86.3971°
RAAN
112.8166°
Arg. of periapsis
93.7451°
True anomaly
266.37448°
Mean anomaly
266.4015°
Eccentric anomaly
266.38799°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
0.00009311
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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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2026-02-03 16:20:46.208Z | 30.397° NE | 2026-02-03 16:23:46.208Z | 71.343° E | 22.54° | 2026-02-03 16:27:46.208Z | 128.605° SE |
| 7 mins | 2026-02-03 18:01:46.208Z | 329.713° NNW | 2026-02-03 18:04:46.208Z | 279.157° WNW | 29.922° | 2026-02-03 18:08:46.208Z | 215.34° SW |
| 8 mins | 2026-02-04 05:16:46.208Z | 157.936° S | 2026-02-04 05:20:46.208Z | 70.98° E | 37.986° | 2026-02-04 05:24:46.208Z | 14.476° NNE |
| 4 mins | 2026-02-04 06:59:46.208Z | 262.005° W | 2026-02-04 07:01:46.208Z | 289.352° WNW | 16.169° | 2026-02-04 07:03:46.208Z | 314.944° NW |
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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