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: 16 hours ago
TLE from 16 hours ago
0 IRIDIUM 151
1 43074U 17083E 25347.22480530 .00000137 00000-0 41966-4 0 9993
2 43074 86.3971 39.7834 0002214 94.8133 265.3316 14.34218227417489Epoch: 2025-12-13T05:23Z
TLE epoch observation values (Epoch: 2025-12-13T05:23:43.177Z)
Latitude
-0.00001°
Longitude
-123.30164°
Altitude
780.846 km
Speed
7.463 km/s
True Right ascension
02h 39m 08s
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
20:21:45
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.214 km
Perigee altitude
773.046 km
Semi-major axis
7,152.767 km
Eccentricity
0.00022
Inclination
86.3971°
RAAN
39.7834°
Arg. of periapsis
94.8133°
True anomaly
265.30631°
Mean anomaly
265.3316°
Eccentric anomaly
265.31896°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
0.000041966
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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 | 2025-12-14 03:16:54.862Z | 136.599° SSE | 2025-12-14 03:20:54.862Z | 85.468° E | 23.34° | 2025-12-14 03:24:54.862Z | 30.626° NE |
| 7 mins | 2025-12-14 04:58:54.862Z | 229.299° WSW | 2025-12-14 05:01:54.862Z | 286.49° WNW | 28.997° | 2025-12-14 05:05:54.862Z | 341.566° N |
| 9 mins | 2025-12-14 15:27:54.862Z | 8.183° NNE | 2025-12-14 15:31:54.862Z | 79.51° E | 40.687° | 2025-12-14 15:36:54.862Z | 164.696° S |
| 4 mins | 2025-12-14 17:10:54.862Z | 297.75° NW | 2025-12-14 17:11:54.862Z | 284.898° WNW | 14.387° | 2025-12-14 17:14:54.862Z | 248.976° W |
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 descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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