IRIDIUM 105, 41921
Orbit data source: Space-Track
IRIDIUM 105, 41921 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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41921 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: 10 hours ago
TLE from 10 hours ago
0 IRIDIUM 105
1 41921U 17003E 25256.81464368 .00000280 00000-0 92902-4 0 9994
2 41921 86.4049 172.3698 0002191 87.6151 272.5296 14.34204918455527Epoch: 2025-09-13T19:33Z
TLE epoch observation values (Epoch: 2025-09-13T19:33:05.213Z)
Latitude
-0.00002°
Longitude
-113.94452°
Altitude
780.692 km
Speed
7.464 km/s
True Right ascension
11h 29m 28s
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
22:25:39
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.241 km
Perigee altitude
773.107 km
Semi-major axis
7,152.811 km
Eccentricity
0.00022
Inclination
86.4049°
RAAN
172.3698°
Arg. of periapsis
87.6151°
True anomaly
272.50452°
Mean anomaly
272.5296°
Eccentric anomaly
272.51706°
Mean motion
3.5878 °/min
Orbital period
100.34 mins
BSTAR
0.000092902
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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 105 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 | 2025-09-14 06:10:16.150Z | 11.039° NNE | 2025-09-14 06:15:16.150Z | 100.687° ESE | 35.936° | 2025-09-14 06:19:16.150Z | 156.07° SSE |
| 5 mins | 2025-09-14 07:53:16.150Z | 305.604° NW | 2025-09-14 07:55:16.150Z | 277.512° WNW | 17.5° | 2025-09-14 07:58:16.150Z | 240.318° WSW |
| 8 mins | 2025-09-14 19:07:16.150Z | 187.71° SSW | 2025-09-14 19:11:16.150Z | 327.53° NNW | 43.362° | 2025-09-14 19:15:16.150Z | 359.147° N |
| 7 mins | 2025-09-15 05:38:16.150Z | 34.806° NE | 2025-09-15 05:41:16.150Z | 81.849° E | 23.732° | 2025-09-15 05:45:16.150Z | 134.377° SE |
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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