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IRIDIUM 146, 43254

Orbit data source: Space-Track

IRIDIUM 146, 43254 is a payload satellite owned by Iridium (US) in LEO that was launched on Fri, 30 Mar 2018 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/43254?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/43254?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

43254, 2018-030F

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)

2018-03-30 (8 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: 9 hours ago

TLE from 9 hours ago

0 IRIDIUM 146
1 43254U 18030F   26256.08184077  .00000046  00000-0  93469-5 0  9992
2 43254  86.3907 253.6506 0002192  88.1975 271.9472 14.34217507442738

Epoch: 2026-09-13T01:57Z

TLE epoch observation values (Epoch: 2026-09-13T01:57:51.042Z)

Latitude

-0.00001°

Longitude

-127.89368°

Altitude

780.666 km

Speed

7.464 km/s

True Right ascension

16h 54m 36s

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

03:33:01

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

776.2 km

Perigee altitude

773.065 km

Semi-major axis

7,152.77 km

Eccentricity

0.00022

Inclination

86.3907°

RAAN

253.6506°

Arg. of periapsis

88.1975°

True anomaly

271.9221°

Mean anomaly

271.9472°

Eccentric anomaly

271.93465°

Mean motion

3.58783 °/min

Orbital period

100.34 mins

BSTAR

0.0000093469

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Other satellites on launch #30 in the year 2018 (2018-03-30 UTC)

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IRIDIUM 146 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	2026-09-13 12:34:40.659Z	346.04° N	2026-09-13 12:39:40.659Z	272.887° WNW	48.808°	2026-09-13 12:43:40.659Z	203.143° SW
8 mins	2026-09-13 23:51:40.659Z	144.155° SSE	2026-09-13 23:54:40.659Z	96.389° ESE	37.446°	2026-09-13 23:59:40.659Z	19.726° NNE
6 mins	2026-09-14 01:33:40.659Z	247.732° W	2026-09-14 01:35:40.659Z	278.222° WNW	23.131°	2026-09-14 01:39:40.659Z	331.822° NNW

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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 146, 43254 on other resources

View IRIDIUM 146, 43254 on NASA - NSSDCA Website

View IRIDIUM 146, 43254 on Heavens-Above

View IRIDIUM 146, 43254 on Keep Track

View IRIDIUM 146, 43254 on Celestrak

View IRIDIUM 146, 43254 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 146, 43254

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 9 hours ago

TLE from 9 hours ago

TLE epoch observation values (Epoch: 2026-09-13T01:57:51.042Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #30 in the year 2018 (2018-03-30 UTC)

IRIDIUM 146 Visibility forecast

Co-orbital & Co-planar RSOs

Check out IRIDIUM 146, 43254 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 9 hours ago