IRIDIUM 103, 41918
Orbit data source: Space-Track
IRIDIUM 103, 41918 is a payload satellite owned by Iridium (US) in LEO that was launched on Sat, 14 Jan 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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41918 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: 11 hours ago
TLE from 11 hours ago
0 IRIDIUM 103
1 41918U 17003B 25353.42887350 .00000065 00000-0 16140-4 0 9996
2 41918 86.3988 163.5615 0001712 102.2689 257.8699 14.34214765467463Epoch: 2025-12-19T10:17Z
TLE epoch observation values (Epoch: 2025-12-19T10:17:34.670Z)
Latitude
0.00002°
Longitude
-79.10312°
Altitude
780.986 km
Speed
7.463 km/s
True Right ascension
10h 54m 14s
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
20:09:12
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
775.866 km
Perigee altitude
773.417 km
Semi-major axis
7,152.779 km
Eccentricity
0.00017
Inclination
86.3988°
RAAN
163.5615°
Arg. of periapsis
102.2689°
True anomaly
257.85072°
Mean anomaly
257.8699°
Eccentric anomaly
257.86031°
Mean motion
3.58782 °/min
Orbital period
100.34 mins
BSTAR
0.00001614
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Other satellites on launch #3 in the year 2017 (2017-01-14 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 103 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 | 2025-12-19 22:35:48.538Z | 30.792° NE | 2025-12-19 22:39:48.538Z | 83.625° E | 19.544° | 2025-12-19 22:42:48.538Z | 121.878° SE |
| 8 mins | 2025-12-20 00:16:48.538Z | 336.202° NNW | 2025-12-20 00:19:48.538Z | 289.004° WNW | 33.186° | 2025-12-20 00:24:48.538Z | 205.861° SW |
| 7 mins | 2025-12-20 11:32:48.538Z | 146.107° SSE | 2025-12-20 11:35:48.538Z | 84.228° E | 34.724° | 2025-12-20 11:39:48.538Z | 19.52° NNE |
| 5 mins | 2025-12-20 13:14:48.538Z | 255.866° W | 2025-12-20 13:16:48.538Z | 285.445° WNW | 18.961° | 2025-12-20 13:19:48.538Z | 324.659° 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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