IRIDIUM 159, 43578
Orbit data source: Space-Track
IRIDIUM 159, 43578 is a payload satellite owned by Iridium (US) in LEO that was launched on Wed, 25 Jul 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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43578 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
NGIS 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 159
1 43578U 18061K 26171.41558407 .00000069 00000-0 17727-4 0 9997
2 43578 86.3958 55.3567 0002265 84.1741 275.9713 14.34218045413845Epoch: 2026-06-20T09:58Z
TLE epoch observation values (Epoch: 2026-06-20T09:58:26.463Z)
Latitude
-0.00003°
Longitude
-2.8841°
Altitude
780.549 km
Speed
7.464 km/s
True Right ascension
03h 41m 25s
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
21:38:08
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.251 km
Perigee altitude
773.011 km
Semi-major axis
7,152.768 km
Eccentricity
0.00023
Inclination
86.3958°
RAAN
55.3567°
Arg. of periapsis
84.1741°
True anomaly
275.94549°
Mean anomaly
275.9713°
Eccentric anomaly
275.95839°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
0.000017727
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Other satellites on launch #61 in the year 2018 (2018-07-25 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 159 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 15:41:06.245Z | 129.147° SE | 2026-06-22 15:45:06.245Z | 74.623° E | 21.051° | 2026-06-22 15:48:06.245Z | 35.661° NE |
| 7 mins | 2026-06-22 17:22:06.245Z | 221.295° SW | 2026-06-22 17:25:06.245Z | 276.826° WNW | 31.675° | 2026-06-22 17:29:06.245Z | 341.551° N |
| 8 mins | 2026-06-23 03:52:06.245Z | 14.083° NNE | 2026-06-23 03:55:06.245Z | 64.359° ENE | 37.726° | 2026-06-23 04:00:06.245Z | 159.486° S |
| 4 mins | 2026-06-23 05:34:06.245Z | 303.558° NW | 2026-06-23 05:36:06.245Z | 276.488° WNW | 16.075° | 2026-06-23 05:38:06.245Z | 251.038° W |
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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