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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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: 8 hours ago
TLE from 8 hours ago
0 IRIDIUM 158
1 43571U 18061C 26304.10262128 .00000072 00000-0 18624-4 0 9997
2 43571 86.4001 359.9452 0002145 94.8386 265.3055 14.34217543432849Epoch: 2026-10-31T02:27Z
TLE epoch observation values (Epoch: 2026-10-31T02:27:46.478Z)
Latitude
-0.00001°
Longitude
-76.41162°
Altitude
780.845 km
Speed
7.463 km/s
True Right ascension
23h 59m 46s
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
05:44:10
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.167 km
Perigee altitude
773.098 km
Semi-major axis
7,152.769 km
Eccentricity
0.00021
Inclination
86.4001°
RAAN
359.9452°
Arg. of periapsis
94.8386°
True anomaly
265.281°
Mean anomaly
265.3055°
Eccentric anomaly
265.29325°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
0.000018624
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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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2026-10-31 14:46:44.301Z | 40.97° NE | 2026-10-31 14:49:44.301Z | 78.891° E | 16.698° | 2026-10-31 14:52:44.301Z | 114.549° SE |
| 8 mins | 2026-10-31 16:26:44.301Z | 343.705° N | 2026-10-31 16:30:44.301Z | 263.432° W | 53.452° | 2026-10-31 16:34:44.301Z | 198.88° SSW |
| 7 mins | 2026-11-01 03:42:44.301Z | 139.363° SSE | 2026-11-01 03:45:44.301Z | 90.158° ESE | 34.601° | 2026-11-01 03:49:44.301Z | 25.937° NE |
| 7 mins | 2026-11-01 05:23:44.301Z | 236.716° WSW | 2026-11-01 05:26:44.301Z | 281.89° WNW | 25.305° | 2026-11-01 05:30:44.301Z | 334.915° NNW |
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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