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: 13 hours ago
TLE from 13 hours ago
0 IRIDIUM 103
1 41918U 17003B 26268.75877482 .00000117 00000-0 34666-4 0 9994
2 41918 86.3960 46.3751 0002234 88.5706 271.5746 14.34218753507640Epoch: 2026-09-25T18:12Z
TLE epoch observation values (Epoch: 2026-09-25T18:12:38.144Z)
Latitude
0.00001°
Longitude
128.63958°
Altitude
780.671 km
Speed
7.464 km/s
True Right ascension
03h 05m 30s
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
00:56:39
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.226 km
Perigee altitude
773.03 km
Semi-major axis
7,152.765 km
Eccentricity
0.00022
Inclination
86.396°
RAAN
46.3751°
Arg. of periapsis
88.5706°
True anomaly
271.54901°
Mean anomaly
271.5746°
Eccentric anomaly
271.5618°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
0.000034666
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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 | 2026-09-26 09:23:37.223Z | 157.79° S | 2026-09-26 09:27:37.223Z | 99.747° ESE | 47.274° | 2026-09-26 09:32:37.223Z | 15.339° NNE |
| 5 mins | 2026-09-26 11:06:37.223Z | 252.248° W | 2026-09-26 11:08:37.223Z | 278.988° WNW | 18.527° | 2026-09-26 11:11:37.223Z | 319.165° NNW |
| 8 mins | 2026-09-26 21:35:37.223Z | 350.939° N | 2026-09-26 21:39:37.223Z | 228.71° WSW | 67.78° | 2026-09-26 21:43:37.223Z | 187.227° SSW |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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