IRIDIUM 138, 43071
Orbit data source: Space-Track
IRIDIUM 138, 43071 is a payload satellite owned by Iridium (US) in LEO that was launched on Sat, 23 Dec 2017 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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43071 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: 13 hours ago
TLE from 13 hours ago
0 IRIDIUM 138
1 43071U 17083B 26252.59684228 .00000064 00000-0 15949-4 0 9997
2 43071 86.3938 286.4380 0002382 93.8553 266.2915 14.34218075456239Epoch: 2026-09-09T14:19Z
TLE epoch observation values (Epoch: 2026-09-09T14:19:27.172Z)
Latitude
-0.00001°
Longitude
82.92815°
Altitude
780.828 km
Speed
7.463 km/s
True Right ascension
19h 05m 45s
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
19:59:11
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.334 km
Perigee altitude
772.927 km
Semi-major axis
7,152.768 km
Eccentricity
0.00024
Inclination
86.3938°
RAAN
286.438°
Arg. of periapsis
93.8553°
True anomaly
266.26426°
Mean anomaly
266.2915°
Eccentric anomaly
266.27788°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
0.000015949
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Other satellites on launch #83 in the year 2017 (2017-12-23 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 138 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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2026-09-10 03:50:53.049Z | 227.149° WSW | 2026-09-10 03:54:53.049Z | 286.128° WNW | 27.499° | 2026-09-10 03:58:53.049Z | 337.926° N |
| 9 mins | 2026-09-10 14:20:53.049Z | 2.714° NNE | 2026-09-10 14:24:53.049Z | 72.271° E | 74.119° | 2026-09-10 14:29:53.049Z | 172.176° S |
| 5 mins | 2026-09-11 01:38:53.049Z | 103.751° ESE | 2026-09-11 01:40:53.049Z | 76.392° E | 17.487° | 2026-09-11 01:43:53.049Z | 40.335° NE |
| 9 mins | 2026-09-11 03:16:53.049Z | 203.818° SW | 2026-09-11 03:20:53.049Z | 274.462° WNW | 50.742° | 2026-09-11 03:25:53.049Z | 351.56° 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 descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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