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: 1 day ago
TLE from 1 day ago
0 IRIDIUM 103
1 41918U 17003B 25301.38154915 .00000224 00000-0 73055-4 0 9993
2 41918 86.4030 185.2853 0002402 74.9843 285.1618 14.34215887460005Epoch: 2025-10-28T09:09Z
TLE epoch observation values (Epoch: 2025-10-28T09:09:25.846Z)
Latitude
-0.00008°
Longitude
10.95775°
Altitude
780.275 km
Speed
7.464 km/s
True Right ascension
12h 21m 08s
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
04:28:40
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.356 km
Perigee altitude
772.92 km
Semi-major axis
7,152.775 km
Eccentricity
0.00024
Inclination
86.403°
RAAN
185.2853°
Arg. of periapsis
74.9843°
True anomaly
285.13523°
Mean anomaly
285.1618°
Eccentric anomaly
285.14852°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
0.000073055
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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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2025-10-29 17:05:21.648Z | 190.947° SSW | 2025-10-29 17:09:21.648Z | 264.428° W | 43.349° | 2025-10-29 17:14:21.648Z | 357.56° N |
| 6 mins | 2025-10-30 03:37:21.648Z | 37.429° NE | 2025-10-30 03:39:21.648Z | 70.107° E | 25.407° | 2025-10-30 03:43:21.648Z | 132.841° SE |
| 7 mins | 2025-10-30 05:17:21.648Z | 326.243° NNW | 2025-10-30 05:20:21.648Z | 278.866° WNW | 26.674° | 2025-10-30 05:24:21.648Z | 220.214° 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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