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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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Iframe URL

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 (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: 7 hours ago

TLE from 7 hours ago

0 IRIDIUM 100
1 42956U 17061B   25356.72016983  .00000138  00000-0  42111-4 0  9993
2 42956  86.3968  98.9849 0002102  98.8873 261.2561 14.34218205429483

Epoch: 2025-12-22T17:17Z

TLE epoch observation values (Epoch: 2025-12-22T17:17:02.673Z)

Latitude

0°

Longitude

108.20954°

Altitude

780.946 km

Speed

7.463 km/s

True Right ascension

06h 35m 56s

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

23:14:48

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

776.134 km

Perigee altitude

773.127 km

Semi-major axis

7,152.767 km

Eccentricity

0.00021

Inclination

86.3968°

RAAN

98.9849°

Arg. of periapsis

98.8873°

True anomaly

261.23229°

Mean anomaly

261.2561°

Eccentric anomaly

261.2442°

Mean motion

3.58783 °/min

Orbital period

100.34 mins

BSTAR

0.000042111

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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.
8 mins	2025-12-23 06:48:05.418Z	141.331° SSE	2025-12-23 06:52:05.418Z	82.096° E	27.523°	2025-12-23 06:56:05.418Z	25.71° NE
6 mins	2025-12-23 08:30:05.418Z	237.615° WSW	2025-12-23 08:33:05.418Z	288.643° WNW	24.687°	2025-12-23 08:36:05.418Z	331.425° NNW
9 mins	2025-12-23 18:59:05.418Z	3.176° NNE	2025-12-23 19:03:05.418Z	92.063° ESE	43.875°	2025-12-23 19:08:05.418Z	172.197° S

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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: 7 hours ago

TLE from 7 hours ago

TLE epoch observation values (Epoch: 2025-12-22T17:17:02.673Z)

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: 7 hours ago