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, 4.7 m
Radar Cross Section
14.423 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 7 hours ago
TLE from 7 hours ago
0 IRIDIUM 103
1 41918U 17003B 25256.93900828 .00000230 00000-0 75044-4 0 9992
2 41918 86.4015 203.8215 0002372 97.9107 262.2358 14.34217755453635Epoch: 2025-09-13T22:32Z
TLE epoch observation values (Epoch: 2025-09-13T22:32:10.315Z)
Latitude
-0.00003°
Longitude
-127.38666°
Altitude
780.948 km
Speed
7.463 km/s
True Right ascension
13h 35m 17s
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
22:25:41
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.328 km
Perigee altitude
772.935 km
Semi-major axis
7,152.769 km
Eccentricity
0.00024
Inclination
86.4015°
RAAN
203.8215°
Arg. of periapsis
97.9107°
True anomaly
262.20887°
Mean anomaly
262.2358°
Eccentric anomaly
262.22233°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
0.000075044
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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 | 2025-09-14 07:30:18.109Z | 41.518° NE | 2025-09-14 07:33:18.109Z | 80.71° E | 16.606° | 2025-09-14 07:36:18.109Z | 116.574° SE |
| 8 mins | 2025-09-14 09:10:18.109Z | 341.912° N | 2025-09-14 09:14:18.109Z | 259.282° W | 37.539° | 2025-09-14 09:18:18.109Z | 200.13° SSW |
| 7 mins | 2025-09-14 20:26:18.109Z | 140.385° SSE | 2025-09-14 20:29:18.109Z | 88.532° E | 30.586° | 2025-09-14 20:33:18.109Z | 24.435° NE |
| 7 mins | 2025-09-14 22:07:18.109Z | 238.626° WSW | 2025-09-14 22:10:18.109Z | 283.187° WNW | 22.176° | 2025-09-14 22:14:18.109Z | 334.72° 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 ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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