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, 4.8 m
Radar Cross Section
10.154 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 12 hours ago
TLE from 12 hours ago
0 IRIDIUM 137
1 43076U 17083G 25293.62355268 .00000106 00000-0 30887-4 0 9994
2 43076 86.3960 62.2782 0001546 105.0873 255.0494 14.34218630409836Epoch: 2025-10-20T14:57Z
TLE epoch observation values (Epoch: 2025-10-20T14:57:54.951Z)
Latitude
-0.00002°
Longitude
168.47603°
Altitude
781.001 km
Speed
7.463 km/s
True Right ascension
04h 09m 06s
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
22:01:14
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
775.735 km
Perigee altitude
773.523 km
Semi-major axis
7,152.766 km
Eccentricity
0.00015
Inclination
86.396°
RAAN
62.2782°
Arg. of periapsis
105.0873°
True anomaly
255.03228°
Mean anomaly
255.0494°
Eccentric anomaly
255.04084°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
0.000030887
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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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2025-10-21 07:52:26.392Z | 98.155° ESE | 2025-10-21 07:54:26.392Z | 73.895° E | 12.969° | 2025-10-21 07:56:26.392Z | 50.773° ENE |
| 8 mins | 2025-10-21 09:30:26.392Z | 194.546° SSW | 2025-10-21 09:34:26.392Z | 290.203° WNW | 42.263° | 2025-10-21 09:38:26.392Z | 354.667° N |
| 7 mins | 2025-10-21 20:01:26.392Z | 28.787° NE | 2025-10-21 20:04:26.392Z | 76.487° E | 27.019° | 2025-10-21 20:08:26.392Z | 137.314° SSE |
| 7 mins | 2025-10-21 21:42:26.392Z | 321.708° NNW | 2025-10-21 21:45:26.392Z | 272.164° WNW | 25.266° | 2025-10-21 21:49:26.392Z | 219.996° SW |
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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