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IRIDIUM 100, 42956

Orbit data source: Space-Track

IRIDIUM 100, 42956 is a payload satellite owned by Iridium (US) in LEO that was launched on Mon, 09 Oct 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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https://www.satcat.com/sats-embedded/42956?theme=dark&initialShowStats=false

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Identifier

42956, 2017-061B

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)

2017-10-09 (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: 12 hours ago

TLE from 12 hours ago

0 IRIDIUM 100
1 42956U 17061B   26275.88734660 -.00000012  00000-0 -11320-4 0  9991
2 42956  86.4004 340.1882 0002091  95.7734 264.3700 14.34217442470211

Epoch: 2026-10-02T21:17Z

TLE epoch observation values (Epoch: 2026-10-02T21:17:46.746Z)

Latitude

-0.00003°

Longitude

9.14057°

Altitude

780.866 km

Speed

7.463 km/s

True Right ascension

22h 40m 45s

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

03:26:47

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

776.128 km

Perigee altitude

773.137 km

Semi-major axis

7,152.77 km

Eccentricity

0.00021

Inclination

86.4004°

RAAN

340.1882°

Arg. of periapsis

95.7734°

True anomaly

264.34616°

Mean anomaly

264.37°

Eccentric anomaly

264.35808°

Mean motion

3.58783 °/min

Orbital period

100.34 mins

BSTAR

-0.00001132

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Other satellites on launch #61 in the year 2017 (2017-10-09 UTC)

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IRIDIUM 100 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	2026-10-03 16:16:49.591Z	4.331° NNE	2026-10-03 16:21:49.591Z	80.112° E	62.924°	2026-10-03 16:26:49.591Z	166.595° S
9 mins	2026-10-04 05:13:49.591Z	197.685° SSW	2026-10-04 05:17:49.591Z	275.675° WNW	60.162°	2026-10-04 05:22:49.591Z	354.684° 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 100, 42956 on other resources

View IRIDIUM 100, 42956 on NASA - NSSDCA Website

View IRIDIUM 100, 42956 on Heavens-Above

View IRIDIUM 100, 42956 on Keep Track

View IRIDIUM 100, 42956 on Celestrak

View IRIDIUM 100, 42956 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 100, 42956

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 12 hours ago

TLE from 12 hours ago

TLE epoch observation values (Epoch: 2026-10-02T21:17:46.746Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #61 in the year 2017 (2017-10-09 UTC)

IRIDIUM 100 Visibility forecast

Co-orbital & Co-planar RSOs

Check out IRIDIUM 100, 42956 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 12 hours ago