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: 15 hours ago
TLE from 15 hours ago
0 IRIDIUM 137
1 43076U 17083G 25357.18267284 .00000233 00000-0 76118-4 0 9994
2 43076 86.3962 35.7145 0002578 83.3888 276.7602 14.34220148418946Epoch: 2025-12-23T04:23Z
TLE epoch observation values (Epoch: 2025-12-23T04:23:02.933Z)
Latitude
0.00006°
Longitude
-122.0178°
Altitude
780.493 km
Speed
7.464 km/s
True Right ascension
02h 22m 51s
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
18:08:02
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.468 km
Perigee altitude
772.78 km
Semi-major axis
7,152.761 km
Eccentricity
0.00026
Inclination
86.3962°
RAAN
35.7145°
Arg. of periapsis
83.3888°
True anomaly
276.73086°
Mean anomaly
276.7602°
Eccentric anomaly
276.74553°
Mean motion
3.58784 °/min
Orbital period
100.34 mins
BSTAR
0.000076118
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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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2025-12-24 02:17:13.810Z | 125.974° SE | 2025-12-24 02:20:13.810Z | 85.225° E | 21.265° | 2025-12-24 02:24:13.810Z | 32.491° NE |
| 8 mins | 2025-12-24 03:57:13.810Z | 216.554° SW | 2025-12-24 04:01:13.810Z | 287.465° WNW | 31.318° | 2025-12-24 04:05:13.810Z | 343.722° N |
| 8 mins | 2025-12-24 14:28:13.810Z | 16.377° NNE | 2025-12-24 14:31:13.810Z | 80.668° E | 38.507° | 2025-12-24 14:36:13.810Z | 160.944° S |
| 4 mins | 2025-12-24 16:10:13.810Z | 298.661° NW | 2025-12-24 16:11:13.810Z | 285.114° WNW | 15.998° | 2025-12-24 16:14:13.810Z | 247.091° 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 descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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