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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: 17 hours ago

TLE from 17 hours ago

0 IRIDIUM 137
1 43076U 17083G   26304.60610191  .00000048  00000-0  99038-5 0  9994
2 43076  86.3936 265.1076 0002511  87.1784 272.9699 14.34217581463720

Epoch: 2026-10-31T14:32Z

TLE epoch observation values (Epoch: 2026-10-31T14:32:47.205Z)

Latitude

-0.00001°

Longitude

7.0015°

Altitude

780.626 km

Speed

7.464 km/s

True Right ascension

17h 40m 25s

True Declination

0° 00' 00"

Sunlit

Object was in daylight 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

03:11:18

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

776.428 km

Perigee altitude

772.836 km

Semi-major axis

7,152.769 km

Eccentricity

0.00025

Inclination

86.3936°

RAAN

265.1076°

Arg. of periapsis

87.1784°

True anomaly

272.94116°

Mean anomaly

272.9699°

Eccentric anomaly

272.95553°

Mean motion

3.58783 °/min

Orbital period

100.34 mins

BSTAR

0.0000099038

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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.
9 mins	2026-11-01 09:32:21.100Z	1.384° NNE	2026-11-01 09:37:21.100Z	131.204° SE	71.482°	2026-11-01 09:41:21.100Z	172.452° S
5 mins	2026-11-01 20:50:21.100Z	109.565° ESE	2026-11-01 20:52:21.100Z	83.197° E	17.898°	2026-11-01 20:55:21.100Z	44.368° NE
8 mins	2026-11-01 22:29:21.100Z	207.582° SW	2026-11-01 22:33:21.100Z	294.938° NW	47.782°	2026-11-01 22:37:21.100Z	349.362° N

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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: 17 hours ago

TLE from 17 hours ago

TLE epoch observation values (Epoch: 2026-10-31T14:32:47.205Z)

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: 17 hours ago