IRIDIUM 151, 43074
Orbit data source: Space-Track
IRIDIUM 151, 43074 is a payload satellite owned by Iridium (US) in LEO that was launched on Sat, 23 Dec 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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43074 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, 4.8 m
Radar Cross Section
10.154 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 22 hours ago
TLE from 22 hours ago
0 IRIDIUM 151
1 43074U 17083E 25316.52664750 .00000550 00000-0 18919-3 0 9990
2 43074 86.3983 52.6127 0002045 99.3340 260.8087 14.34216956413087Epoch: 2025-11-12T12:38Z
TLE epoch observation values (Epoch: 2025-11-12T12:38:22.344Z)
Latitude
-0.00001°
Longitude
171.12202°
Altitude
780.955 km
Speed
7.463 km/s
True Right ascension
03h 30m 27s
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
06:40:44
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.097 km
Perigee altitude
773.172 km
Semi-major axis
7,152.771 km
Eccentricity
0.0002
Inclination
86.3983°
RAAN
52.6127°
Arg. of periapsis
99.334°
True anomaly
260.78557°
Mean anomaly
260.8087°
Eccentric anomaly
260.79713°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
0.00018919
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Other satellites on launch #83 in the year 2017 (2017-12-23 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 151 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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2025-11-13 17:41:05.434Z | 26.577° NE | 2025-11-13 17:45:05.434Z | 80.912° E | 22.592° | 2025-11-13 17:49:05.434Z | 132.449° SE |
| 8 mins | 2025-11-13 19:22:05.434Z | 333.556° NNW | 2025-11-13 19:26:05.434Z | 265.831° W | 29.853° | 2025-11-13 19:30:05.434Z | 212.045° SW |
| 8 mins | 2025-11-14 06:38:05.434Z | 154.652° SSE | 2025-11-14 06:41:05.434Z | 91.544° ESE | 38.322° | 2025-11-14 06:46:05.434Z | 12.981° NNE |
| 5 mins | 2025-11-14 08:20:05.434Z | 256.266° W | 2025-11-14 08:22:05.434Z | 282.592° WNW | 16.343° | 2025-11-14 08:25:05.434Z | 320.463° 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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