IRIDIUM 143, 43258
Orbit data source: Space-Track
IRIDIUM 143, 43258 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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43258 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: 10 hours ago
TLE from 10 hours ago
0 IRIDIUM 143
1 43258U 18030K 26256.03744249 -.00000016 00000-0 -12812-4 0 9995
2 43258 86.3916 253.8148 0002128 86.8642 273.2797 14.34217200442680Epoch: 2026-09-13T00:53Z
TLE epoch observation values (Epoch: 2026-09-13T00:53:55.031Z)
Latitude
-0.00003°
Longitude
-111.70234°
Altitude
780.633 km
Speed
7.464 km/s
True Right ascension
16h 55m 15s
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
03:32:38
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.156 km
Perigee altitude
773.111 km
Semi-major axis
7,152.771 km
Eccentricity
0.00021
Inclination
86.3916°
RAAN
253.8148°
Arg. of periapsis
86.8642°
True anomaly
273.25535°
Mean anomaly
273.2797°
Eccentric anomaly
273.26753°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
-0.000012812
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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 143 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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2026-09-13 11:31:17.445Z | 15.945° NNE | 2026-09-13 11:35:17.445Z | 73.513° E | 38.927° | 2026-09-13 11:40:17.445Z | 150.5° SSE |
| 6 mins | 2026-09-13 13:13:17.445Z | 317.652° NNW | 2026-09-13 13:16:17.445Z | 274.073° WNW | 22.3° | 2026-09-13 13:19:17.445Z | 234.399° WSW |
| 8 mins | 2026-09-14 00:28:17.445Z | 178.387° S | 2026-09-14 00:31:17.445Z | 154.026° SSE | 80.355° | 2026-09-14 00:36:17.445Z | 3.654° NNE |
| 4 mins | 2026-09-14 10:59:17.445Z | 40.469° NE | 2026-09-14 11:02:17.445Z | 84.664° E | 21.559° | 2026-09-14 11:03:17.445Z | 100.169° ESE |
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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