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IRIDIUM 142, 43256

Orbit data source: Space-Track

IRIDIUM 142, 43256 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/43256?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/43256?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

43256, 2018-030H

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: 8 hours ago

TLE from 8 hours ago

0 IRIDIUM 142
1 43256U 18030H   26131.41185730  .00000055  00000-0  12747-4 0  9999
2 43256  86.3930 305.7362 0002102  84.5568 275.5868 14.34218807424861

Epoch: 2026-05-11T09:53Z

TLE epoch observation values (Epoch: 2026-05-11T09:53:04.470Z)

Latitude

0.00001°

Longitude

-71.73339°

Altitude

780.568 km

Speed

7.464 km/s

True Right ascension

20h 22m 56s

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

02:15:30

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

776.132 km

Perigee altitude

773.125 km

Semi-major axis

7,152.765 km

Eccentricity

0.00021

Inclination

86.393°

RAAN

305.7362°

Arg. of periapsis

84.5568°

True anomaly

275.56283°

Mean anomaly

275.5868°

Eccentric anomaly

275.57481°

Mean motion

3.58783 °/min

Orbital period

100.34 mins

BSTAR

0.000012747

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

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IRIDIUM 142 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	2026-05-11 23:51:51.191Z	354.959° N	2026-05-11 23:55:51.191Z	264.556° W	44.717°	2026-05-12 00:00:51.191Z	182.513° SSW
6 mins	2026-05-12 11:08:51.191Z	119.662° SE	2026-05-12 11:11:51.191Z	73.723° E	21.308°	2026-05-12 11:14:51.191Z	34.978° NE
7 mins	2026-05-12 12:48:51.191Z	222.365° SW	2026-05-12 12:51:51.191Z	278.143° WNW	31.305°	2026-05-12 12:55:51.191Z	341.478° 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 142, 43256 on other resources

View IRIDIUM 142, 43256 on NASA - NSSDCA Website

View IRIDIUM 142, 43256 on Heavens-Above

View IRIDIUM 142, 43256 on Keep Track

View IRIDIUM 142, 43256 on Celestrak

View IRIDIUM 142, 43256 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 142, 43256

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 8 hours ago

TLE from 8 hours ago

TLE epoch observation values (Epoch: 2026-05-11T09:53:04.470Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

IRIDIUM 142 Visibility forecast

Co-orbital & Co-planar RSOs

Check out IRIDIUM 142, 43256 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 8 hours ago