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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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: 7 hours ago
TLE from 7 hours ago
0 IRIDIUM 151
1 43074U 17083E 26108.92443459 .00000081 00000-0 21878-4 0 9993
2 43074 86.3998 346.8391 0002203 83.7024 276.4423 14.34218168435646Epoch: 2026-04-18T22:11Z
TLE epoch observation values (Epoch: 2026-04-18T22:11:11.148Z)
Latitude
0°
Longitude
167.00636°
Altitude
780.54 km
Speed
7.464 km/s
True Right ascension
23h 07m 21s
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
11:30:38
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.206 km
Perigee altitude
773.054 km
Semi-major axis
7,152.767 km
Eccentricity
0.00022
Inclination
86.3998°
RAAN
346.8391°
Arg. of periapsis
83.7024°
True anomaly
276.41721°
Mean anomaly
276.4423°
Eccentric anomaly
276.42976°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
0.000021878
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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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2026-04-19 05:29:54.254Z | 303.424° NW | 2026-04-19 05:31:54.254Z | 279.082° WNW | 13.124° | 2026-04-19 05:33:54.254Z | 255.76° W |
| 4 mins | 2026-04-19 15:05:54.254Z | 97.331° ESE | 2026-04-19 15:06:54.254Z | 84.528° E | 14.658° | 2026-04-19 15:09:54.254Z | 47.483° ENE |
| 8 mins | 2026-04-19 16:43:54.254Z | 200.696° SSW | 2026-04-19 16:47:54.254Z | 295.009° NW | 39.688° | 2026-04-19 16:51:54.254Z | 352.199° N |
| 7 mins | 2026-04-20 03:14:54.254Z | 27.618° NE | 2026-04-20 03:17:54.254Z | 80.665° E | 29.724° | 2026-04-20 03:21:54.254Z | 142.579° SSE |
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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