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, 4.8 m
Radar Cross Section
10.154 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 9 hours ago
TLE from 9 hours ago
0 IRIDIUM 100
1 42956U 17061B 25307.74266877 -.00000001 00000-0 -72607-5 0 9995
2 42956 86.3938 119.4602 0001902 85.4744 274.6669 14.34217366422467Epoch: 2025-11-03T17:49Z
TLE epoch observation values (Epoch: 2025-11-03T17:49:26.581Z)
Latitude
-0.00004°
Longitude
168.85977°
Altitude
780.609 km
Speed
7.464 km/s
True Right ascension
07h 57m 50s
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
22:44:45
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
775.993 km
Perigee altitude
773.273 km
Semi-major axis
7,152.77 km
Eccentricity
0.00019
Inclination
86.3938°
RAAN
119.4602°
Arg. of periapsis
85.4744°
True anomaly
274.64518°
Mean anomaly
274.6669°
Eccentric anomaly
274.65604°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
-0.0000072607
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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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2025-11-04 10:43:47.839Z | 99.609° ESE | 2025-11-04 10:45:47.839Z | 76.009° E | 12.552° | 2025-11-04 10:47:47.839Z | 52.803° ENE |
| 9 mins | 2025-11-04 12:21:47.839Z | 192.663° SSW | 2025-11-04 12:25:47.839Z | 278.581° WNW | 42.939° | 2025-11-04 12:30:47.839Z | 357.19° N |
| 7 mins | 2025-11-04 22:52:47.839Z | 27.999° NE | 2025-11-04 22:55:47.839Z | 73.063° E | 26.236° | 2025-11-04 22:59:47.839Z | 135.069° SSE |
| 7 mins | 2025-11-05 00:33:47.839Z | 324.066° NNW | 2025-11-05 00:36:47.839Z | 275.529° WNW | 26.001° | 2025-11-05 00:40:47.839Z | 220.139° 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 ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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