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IRIDIUM 151, 43074

Orbit data source: Space-Track

IRIDIUM 151, 43074 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 src="https://www.satcat.com/sats-embedded/43074?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/43074?theme=dark&initialShowStats=false

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Identifier

43074, 2017-083E

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: 12 hours ago

TLE from 12 hours ago

0 IRIDIUM 151
1 43074U 17083E   26252.64758247  .00000008  00000-0 -41188-5 0  9993
2 43074  86.3924 286.7527 0002059  91.2974 268.8457 14.34217644456244

Epoch: 2026-09-09T15:32Z

TLE epoch observation values (Epoch: 2026-09-09T15:32:31.125Z)

Latitude

-0.00009°

Longitude

64.92637°

Altitude

780.748 km

Speed

7.463 km/s

True Right ascension

19h 07m 00s

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

19:48:40

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

776.105 km

Perigee altitude

773.159 km

Semi-major axis

7,152.769 km

Eccentricity

0.00021

Inclination

86.3924°

RAAN

286.7527°

Arg. of periapsis

91.2974°

True anomaly

268.82211°

Mean anomaly

268.8457°

Eccentric anomaly

268.83391°

Mean motion

3.58783 °/min

Orbital period

100.34 mins

BSTAR

-0.0000041188

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

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IRIDIUM 151 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.
8 mins	2026-09-10 13:53:23.252Z	17.481° NNE	2026-09-10 13:57:23.252Z	80.067° E	38.837°	2026-09-10 14:01:23.252Z	145.956° SSE
6 mins	2026-09-10 15:35:23.252Z	315.396° NNW	2026-09-10 15:37:23.252Z	287.141° WNW	22.312°	2026-09-10 15:41:23.252Z	232.169° WSW
9 mins	2026-09-11 02:49:23.252Z	178.291° S	2026-09-11 02:53:23.252Z	103.289° ESE	84.573°	2026-09-11 02:58:23.252Z	3.842° 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 151, 43074 on other resources

View IRIDIUM 151, 43074 on NASA - NSSDCA Website

View IRIDIUM 151, 43074 on Heavens-Above

View IRIDIUM 151, 43074 on Keep Track

View IRIDIUM 151, 43074 on Celestrak

View IRIDIUM 151, 43074 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 151, 43074

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 12 hours ago

TLE from 12 hours ago

TLE epoch observation values (Epoch: 2026-09-09T15:32:31.125Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

IRIDIUM 151 Visibility forecast

Co-orbital & Co-planar RSOs

Check out IRIDIUM 151, 43074 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 12 hours ago