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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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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: 9 hours ago

TLE from 9 hours ago

0 IRIDIUM 142
1 43256U 18030H   26041.41045572  .00000162  00000-0  50884-4 0  9991
2 43256  86.4012 343.3562 0001838  81.4726 278.6678 14.34217815411968

Epoch: 2026-02-10T09:51Z

TLE epoch observation values (Epoch: 2026-02-10T09:51:03.374Z)

Latitude

-0.00001°

Longitude

55.10082°

Altitude

780.52 km

Speed

7.464 km/s

True Right ascension

22h 53m 25s

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

21:31:42

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

775.946 km

Perigee altitude

773.317 km

Semi-major axis

7,152.768 km

Eccentricity

0.00018

Inclination

86.4012°

RAAN

343.3562°

Arg. of periapsis

81.4726°

True anomaly

278.64698°

Mean anomaly

278.6678°

Eccentric anomaly

278.65739°

Mean motion

3.58783 °/min

Orbital period

100.34 mins

BSTAR

0.000050884

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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	2026-02-10 20:00:41.069Z	151.53° SSE	2026-02-10 20:04:41.069Z	95.817° ESE	32.27°	2026-02-10 20:09:41.069Z	18.692° NNE
6 mins	2026-02-10 21:43:41.069Z	249.141° W	2026-02-10 21:45:41.069Z	279.042° WNW	20.596°	2026-02-10 21:49:41.069Z	331.488° NNW
8 mins	2026-02-11 08:12:41.069Z	356.717° N	2026-02-11 08:15:41.069Z	348.748° N	43.988°	2026-02-11 08:20:41.069Z	180.256° 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: 9 hours ago

TLE from 9 hours ago

TLE epoch observation values (Epoch: 2026-02-10T09:51:03.374Z)

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: 9 hours ago