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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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 26088.12808160 .00000202 00000-0 65140-4 0 9998
2 41918 86.3941 121.9372 0001946 93.8584 266.2834 14.34218293481751Epoch: 2026-03-29T03:04Z
TLE epoch observation values (Epoch: 2026-03-29T03:04:26.250Z)
Latitude
-0.00004°
Longitude
-110.7106°
Altitude
780.807 km
Speed
7.463 km/s
True Right ascension
08h 07m 44s
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
14:30:04
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.022 km
Perigee altitude
773.238 km
Semi-major axis
7,152.767 km
Eccentricity
0.00019
Inclination
86.3941°
RAAN
121.9372°
Arg. of periapsis
93.8584°
True anomaly
266.26115°
Mean anomaly
266.2834°
Eccentric anomaly
266.27227°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
0.00006514
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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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2026-03-30 13:09:28.307Z | 38.505° NE | 2026-03-30 13:12:28.307Z | 79.428° E | 18.803° | 2026-03-30 13:15:28.307Z | 118.395° SE |
| 8 mins | 2026-03-30 14:49:28.307Z | 339.048° N | 2026-03-30 14:53:28.307Z | 265.379° W | 34.781° | 2026-03-30 14:57:28.307Z | 205.276° SW |
| 8 mins | 2026-03-31 02:05:28.307Z | 146.098° SSE | 2026-03-31 02:08:28.307Z | 92.233° ESE | 33.465° | 2026-03-31 02:13:28.307Z | 17.291° NNE |
| 5 mins | 2026-03-31 03:47:28.307Z | 251.738° W | 2026-03-31 03:49:28.307Z | 281.393° WNW | 19.847° | 2026-03-31 03:52:28.307Z | 323.03° 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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