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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: 6 hours ago

TLE from 6 hours ago

0 IRIDIUM 151
1 43074U 17083E   26192.78619488  .00000142  00000-0  43820-4 0  9996
2 43074  86.3986 311.7762 0002220  95.4179 264.7270 14.34217357447660

Epoch: 2026-07-11T18:52Z

TLE epoch observation values (Epoch: 2026-07-11T18:52:07.237Z)

Latitude

-0.00004°

Longitude

99.05163°

Altitude

780.866 km

Speed

7.463 km/s

True Right ascension

20h 47m 06s

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

13:23:24

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

776.221 km

Perigee altitude

773.045 km

Semi-major axis

7,152.77 km

Eccentricity

0.00022

Inclination

86.3986°

RAAN

311.7762°

Arg. of periapsis

95.4179°

True anomaly

264.70167°

Mean anomaly

264.727°

Eccentric anomaly

264.71433°

Mean motion

3.58783 °/min

Orbital period

100.34 mins

BSTAR

0.00004382

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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.
10 mins	2026-07-12 08:22:05.170Z	172.751° S	2026-07-12 08:27:05.170Z	79.223° E	43.462°	2026-07-12 08:32:05.170Z	7.003° NNE
5 mins	2026-07-12 18:55:05.170Z	47.943° ENE	2026-07-12 18:57:05.170Z	75.378° E	17.359°	2026-07-12 19:00:05.170Z	114.003° SE
7 mins	2026-07-12 20:35:05.170Z	336.848° NNW	2026-07-12 20:38:05.170Z	274.383° WNW	36.934°	2026-07-12 20:42:05.170Z	203.246° SW

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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: 6 hours ago

TLE from 6 hours ago

TLE epoch observation values (Epoch: 2026-07-11T18:52:07.237Z)

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: 6 hours ago