IRIDIUM 146, 43254
Orbit data source: Space-Track
IRIDIUM 146, 43254 is a payload satellite owned by Iridium (US) in LEO that was launched on Fri, 30 Mar 2018 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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43254 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: 11 hours ago
TLE from 11 hours ago
0 IRIDIUM 146
1 43254U 18030F 25258.49485480 .00000129 00000-0 39012-4 0 9995
2 43254 86.3954 45.2334 0002415 87.4400 272.7072 14.34218153390765Epoch: 2025-09-15T11:52Z
TLE epoch observation values (Epoch: 2025-09-15T11:52:35.454Z)
Latitude
-0.00006°
Longitude
-127.61302°
Altitude
780.636 km
Speed
7.464 km/s
True Right ascension
03h 00m 56s
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
15:47:20
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.358 km
Perigee altitude
772.903 km
Semi-major axis
7,152.767 km
Eccentricity
0.00024
Inclination
86.3954°
RAAN
45.2334°
Arg. of periapsis
87.44°
True anomaly
272.67956°
Mean anomaly
272.7072°
Eccentric anomaly
272.69338°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
0.000039012
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Other satellites on launch #30 in the year 2018 (2018-03-30 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 146 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 | 2025-09-16 09:45:10.311Z | 150.877° SSE | 2025-09-16 09:50:10.311Z | 76.514° E | 30.814° | 2025-09-16 09:54:10.311Z | 21.467° NNE |
| 6 mins | 2025-09-16 11:28:10.311Z | 243.982° WSW | 2025-09-16 11:30:10.311Z | 273.48° WNW | 21.593° | 2025-09-16 11:34:10.311Z | 330.083° NNW |
| 8 mins | 2025-09-16 21:57:10.311Z | 358.754° N | 2025-09-16 22:01:10.311Z | 157.543° S | 44.713° | 2025-09-16 22:05:10.311Z | 177.573° S |
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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