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: 9 hours ago
TLE from 9 hours ago
0 IRIDIUM 142
1 43256U 18030H 26256.08818436 .00000024 00000-0 14079-5 0 9993
2 43256 86.3905 253.5782 0002131 88.2780 271.8660 14.34217537442732Epoch: 2026-09-13T02:06Z
TLE epoch observation values (Epoch: 2026-09-13T02:06:59.128Z)
Latitude
-0.00002°
Longitude
-130.25603°
Altitude
780.669 km
Speed
7.464 km/s
True Right ascension
16h 54m 18s
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
03:32:47
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.157 km
Perigee altitude
773.108 km
Semi-major axis
7,152.769 km
Eccentricity
0.00021
Inclination
86.3905°
RAAN
253.5782°
Arg. of periapsis
88.278°
True anomaly
271.84159°
Mean anomaly
271.866°
Eccentric anomaly
271.8538°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
0.0000014079
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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 | 2026-09-13 11:04:26.607Z | 31.002° NE | 2026-09-13 11:07:26.607Z | 69.342° E | 22.098° | 2026-09-13 11:11:26.607Z | 124.527° SE |
| 8 mins | 2026-09-13 12:45:26.607Z | 333.607° NNW | 2026-09-13 12:48:26.607Z | 284.077° WNW | 39.028° | 2026-09-13 12:53:26.607Z | 207.272° SW |
| 8 mins | 2026-09-14 00:00:26.607Z | 154.141° SSE | 2026-09-14 00:04:26.607Z | 77.356° E | 46.535° | 2026-09-14 00:08:26.607Z | 17.319° NNE |
| 5 mins | 2026-09-14 01:43:26.607Z | 259.207° W | 2026-09-14 01:45:26.607Z | 288.124° WNW | 18.946° | 2026-09-14 01:48:26.607Z | 325.375° 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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