IRIDIUM 100, 42956
Orbit data source: Space-Track
IRIDIUM 100, 42956 is a payload satellite owned by Iridium (US) in LEO that was launched on Mon, 09 Oct 2017 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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42956 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
OATK 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, 4.7 m
Radar Cross Section
14.423 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 12 hours ago
TLE from 12 hours ago
0 IRIDIUM 100
1 42956U 17061B 25258.76517050 .00000044 00000-0 87928-5 0 9991
2 42956 86.3999 139.9324 0002258 87.4033 272.7421 14.34217818415447Epoch: 2025-09-15T18:21Z
TLE epoch observation values (Epoch: 2025-09-15T18:21:50.731Z)
Latitude
-0.00003°
Longitude
-130.49411°
Altitude
780.641 km
Speed
7.464 km/s
True Right ascension
09h 19m 43s
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
23:10:38
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.246 km
Perigee altitude
773.016 km
Semi-major axis
7,152.768 km
Eccentricity
0.00023
Inclination
86.3999°
RAAN
139.9324°
Arg. of periapsis
87.4033°
True anomaly
272.71625°
Mean anomaly
272.7421°
Eccentric anomaly
272.72918°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
0.0000087928
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Other satellites on launch #61 in the year 2017 (2017-10-09 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 100 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 | 2025-09-16 16:14:16.047Z | 159.48° S | 2025-09-16 16:19:16.047Z | 79.265° E | 36.439° | 2025-09-16 16:23:16.047Z | 17.085° NNE |
| 5 mins | 2025-09-16 17:58:16.047Z | 258.726° W | 2025-09-16 18:00:16.047Z | 287.178° WNW | 17.585° | 2025-09-16 18:03:16.047Z | 324.568° NNW |
| 9 mins | 2025-09-17 04:26:16.047Z | 351.775° N | 2025-09-17 04:30:16.047Z | 263.42° W | 43.704° | 2025-09-17 04:35:16.047Z | 186.452° SSW |
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 ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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