IRIDIUM 137, 43076
Orbit data source: Space-Track
IRIDIUM 137, 43076 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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43076 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, 4.7 m
Radar Cross Section
14.423 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 8 hours ago
TLE from 8 hours ago
0 IRIDIUM 137
1 43076U 17083G 25260.90211955 .00000077 00000-0 20591-4 0 9991
2 43076 86.3910 75.9693 0002148 72.7243 287.4188 14.34217902405143Epoch: 2025-09-17T21:39Z
TLE epoch observation values (Epoch: 2025-09-17T21:39:03.129Z)
Latitude
0.00003°
Longitude
114.13486°
Altitude
780.258 km
Speed
7.464 km/s
True Right ascension
05h 03m 52s
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
22:28:59
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.168 km
Perigee altitude
773.095 km
Semi-major axis
7,152.768 km
Eccentricity
0.00021
Inclination
86.391°
RAAN
75.9693°
Arg. of periapsis
72.7243°
True anomaly
287.39531°
Mean anomaly
287.4188°
Eccentric anomaly
287.40706°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
0.000020591
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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 137 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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2025-09-18 11:10:52.191Z | 121.768° SE | 2025-09-18 11:13:52.191Z | 84.964° E | 17.94° | 2025-09-18 11:16:52.191Z | 44.541° NE |
| 8 mins | 2025-09-18 12:50:52.191Z | 209.367° SW | 2025-09-18 12:54:52.191Z | 289.706° WNW | 35.448° | 2025-09-18 12:58:52.191Z | 347.619° N |
| 7 mins | 2025-09-18 23:21:52.191Z | 22.091° NNE | 2025-09-18 23:24:52.191Z | 80.764° E | 34.364° | 2025-09-18 23:28:52.191Z | 149.872° SSE |
| 6 mins | 2025-09-19 01:02:52.191Z | 313.366° NW | 2025-09-19 01:04:52.191Z | 286.079° WNW | 18.972° | 2025-09-19 01:08:52.191Z | 234.34° WSW |
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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