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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 URL

https://www.satcat.com/sats-embedded/43256?theme=dark&initialShowStats=false

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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: 10 hours ago

TLE from 10 hours ago

0 IRIDIUM 142
1 43256U 18030H   26095.13221460  .00000166  00000-0  52256-4 0  9990
2 43256  86.3960 320.9172 0002385  89.7712 270.3757 14.34218631419660

Epoch: 2026-04-05T03:10Z

TLE epoch observation values (Epoch: 2026-04-05T03:10:23.341Z)

Latitude

-0.00003°

Longitude

79.87792°

Altitude

780.704 km

Speed

7.463 km/s

True Right ascension

21h 23m 40s

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

19:30:24

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

776.335 km

Perigee altitude

772.923 km

Semi-major axis

7,152.766 km

Eccentricity

0.00024

Inclination

86.396°

RAAN

320.9172°

Arg. of periapsis

89.7712°

True anomaly

270.34837°

Mean anomaly

270.3757°

Eccentric anomaly

270.36204°

Mean motion

3.58783 °/min

Orbital period

100.34 mins

BSTAR

0.000052256

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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	2026-04-05 15:00:23.970Z	153.172° SSE	2026-04-05 15:04:23.970Z	98.866° ESE	32.945°	2026-04-05 15:09:23.970Z	18.364° NNE
6 mins	2026-04-05 16:43:23.970Z	248.867° W	2026-04-05 16:45:23.970Z	277.705° WNW	19.901°	2026-04-05 16:49:23.970Z	330.205° NNW
9 mins	2026-04-06 03:11:23.970Z	355.946° N	2026-04-06 03:16:23.970Z	199.996° SSW	43.914°	2026-04-06 03:20:23.970Z	181.726° SSW

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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: 10 hours ago

TLE from 10 hours ago

TLE epoch observation values (Epoch: 2026-04-05T03:10:23.341Z)

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: 10 hours ago