IRIDIUM 142, 43256
Orbit data source: Space-Track
IRIDIUM 142, 43256 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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43256 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: 2 days ago
TLE from 2 days ago
0 IRIDIUM 142
1 43256U 18030H 26171.38920678 .00000075 00000-0 19710-4 0 9996
2 43256 86.3960 289.0103 0002130 99.0648 261.0789 14.34217798430599Epoch: 2026-06-20T09:20Z
TLE epoch observation values (Epoch: 2026-06-20T09:20:27.465Z)
Latitude
-0.00003°
Longitude
-119.70867°
Altitude
780.955 km
Speed
7.463 km/s
True Right ascension
19h 16m 02s
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
21:41:33
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.155 km
Perigee altitude
773.108 km
Semi-major axis
7,152.769 km
Eccentricity
0.00021
Inclination
86.396°
RAAN
289.0103°
Arg. of periapsis
99.0648°
True anomaly
261.05479°
Mean anomaly
261.0789°
Eccentric anomaly
261.06684°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
0.00001971
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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 142 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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2026-06-22 18:51:30.887Z | 30.712° NE | 2026-06-22 18:54:30.887Z | 70.44° E | 21.581° | 2026-06-22 18:58:30.887Z | 126.724° SE |
| 7 mins | 2026-06-22 20:32:30.887Z | 331.521° NNW | 2026-06-22 20:35:30.887Z | 281.198° WNW | 30.972° | 2026-06-22 20:39:30.887Z | 214.092° SW |
| 8 mins | 2026-06-23 07:47:30.887Z | 156.215° SSE | 2026-06-23 07:51:30.887Z | 74.882° E | 37.083° | 2026-06-23 07:55:30.887Z | 15.852° NNE |
| 5 mins | 2026-06-23 09:30:30.887Z | 260.507° W | 2026-06-23 09:32:30.887Z | 288.55° WNW | 16.97° | 2026-06-23 09:35:30.887Z | 324.935° 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 descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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