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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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Iframe URL

https://www.satcat.com/sats-embedded/43076?theme=dark&initialShowStats=false

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Identifier

43076, 2017-083G

Orbit

LEO

Country

Related business

Iridium Communications Inc. (US)

Manufacturer

OATK SSG Gilbert

Mission

Operational Commercial Communications

Bus & Motor

ELITEBUS, Unknown motor

Mass

860 kg wet, 700 kg dry

Launch date (UTC)

2017-12-23 (9 years ago)

Launch vehicle

FALCON 9

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Trap Box + 2 Pan, 4.8 m

Radar Cross Section

10.154 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 13 hours ago

TLE from 13 hours ago

0 IRIDIUM 137
1 43076U 17083G   26252.62855462  .00000041  00000-0  75370-5 0  9996
2 43076  86.3930 286.8650 0001898  94.3356 265.8057 14.34217726456276

Epoch: 2026-09-09T15:05Z

TLE epoch observation values (Epoch: 2026-09-09T15:05:07.119Z)

Latitude

0.00003°

Longitude

71.90746°

Altitude

780.818 km

Speed

7.463 km/s

True Right ascension

19h 07m 27s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

19:57:05

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

775.989 km

Perigee altitude

773.274 km

Semi-major axis

7,152.769 km

Eccentricity

0.00019

Inclination

86.393°

RAAN

286.865°

Arg. of periapsis

94.3356°

True anomaly

265.78401°

Mean anomaly

265.8057°

Eccentric anomaly

265.79485°

Mean motion

3.58783 °/min

Orbital period

100.34 mins

BSTAR

0.000007537

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Other satellites on launch #83 in the year 2017 (2017-12-23 UTC)

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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.
5 mins	2026-09-10 13:27:46.732Z	47.162° ENE	2026-09-10 13:29:46.732Z	77.269° E	21.58°	2026-09-10 13:32:46.732Z	118.731° SE
7 mins	2026-09-10 15:07:46.732Z	330.783° NNW	2026-09-10 15:10:46.732Z	270.374° WNW	41.02°	2026-09-10 15:14:46.732Z	208.579° SW
8 mins	2026-09-11 02:22:46.732Z	149.717° SSE	2026-09-11 02:25:46.732Z	95.985° ESE	44.696°	2026-09-11 02:30:46.732Z	16.231° NNE

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Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out IRIDIUM 137, 43076 on other resources

View IRIDIUM 137, 43076 on NASA - NSSDCA Website

View IRIDIUM 137, 43076 on Heavens-Above

View IRIDIUM 137, 43076 on Keep Track

View IRIDIUM 137, 43076 on Celestrak

View IRIDIUM 137, 43076 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

IRIDIUM 137, 43076

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 13 hours ago

TLE from 13 hours ago

TLE epoch observation values (Epoch: 2026-09-09T15:05:07.119Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #83 in the year 2017 (2017-12-23 UTC)

IRIDIUM 137 Visibility forecast

Co-orbital & Co-planar RSOs

Check out IRIDIUM 137, 43076 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 13 hours ago