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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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: 1 day ago
TLE from 1 day ago
0 IRIDIUM 142
1 43256U 18030H 25301.47860358 .00000381 00000-0 12908-3 0 9999
2 43256 86.4006 27.2118 0001679 96.9306 263.2081 14.34218640396927Epoch: 2025-10-28T11:29Z
TLE epoch observation values (Epoch: 2025-10-28T11:29:11.349Z)
Latitude
0°
Longitude
177.849°
Altitude
780.857 km
Speed
7.463 km/s
True Right ascension
01h 48m 50s
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
11:30:13
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
775.83 km
Perigee altitude
773.428 km
Semi-major axis
7,152.766 km
Eccentricity
0.00017
Inclination
86.4006°
RAAN
27.2118°
Arg. of periapsis
96.9306°
True anomaly
263.189°
Mean anomaly
263.2081°
Eccentric anomaly
263.19855°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
0.00012908
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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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2025-10-29 16:33:45.448Z | 53.457° ENE | 2025-10-29 16:35:45.448Z | 78.165° E | 13.32° | 2025-10-29 16:37:45.448Z | 101.611° ESE |
| 8 mins | 2025-10-29 18:12:45.448Z | 348.71° N | 2025-10-29 18:16:45.448Z | 260.762° W | 42.17° | 2025-10-29 18:20:45.448Z | 191.942° SSW |
| 7 mins | 2025-10-30 05:28:45.448Z | 134.26° SE | 2025-10-30 05:31:45.448Z | 90.607° ESE | 25.606° | 2025-10-30 05:35:45.448Z | 30.112° NE |
| 7 mins | 2025-10-30 07:09:45.448Z | 230.826° WSW | 2025-10-30 07:12:45.448Z | 280.629° WNW | 26.615° | 2025-10-30 07:16:45.448Z | 337.723° N |
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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