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IRIDIUM 103, 41918

Orbit data source: Space-Track

IRIDIUM 103, 41918 is a payload satellite owned by Iridium (US) in LEO that was launched on Sat, 14 Jan 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 src="https://www.satcat.com/sats-embedded/41918?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/41918?theme=dark&initialShowStats=false

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Identifier

41918, 2017-003B

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)

2017-01-14 (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: 4 hours ago

TLE from 4 hours ago

0 IRIDIUM 103
1 41918U 17003B   25363.82437602  .00000418  00000-0  14219-3 0  9998
2 41918  86.3999 159.2215 0001942 105.6131 254.5279 14.34219763468953

Epoch: 2025-12-29T19:47Z

TLE epoch observation values (Epoch: 2025-12-29T19:47:06.088Z)

Latitude

-0.00003°

Longitude

123.92967°

Altitude

781.082 km

Speed

7.463 km/s

True Right ascension

10h 36m 53s

True Declination

0° 00' 00"

Sunlit

Object was in partial 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

23:45:38

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

776.014 km

Perigee altitude

773.236 km

Semi-major axis

7,152.762 km

Eccentricity

0.00019

Inclination

86.3999°

RAAN

159.2215°

Arg. of periapsis

105.6131°

True anomaly

254.50645°

Mean anomaly

254.5279°

Eccentric anomaly

254.51718°

Mean motion

3.58784 °/min

Orbital period

100.34 mins

BSTAR

0.00014219

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Other satellites on launch #3 in the year 2017 (2017-01-14 UTC)

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IRIDIUM 103 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	2025-12-30 10:57:19.197Z	173.999° S	2025-12-30 11:02:19.197Z	101.963° ESE	43.806°	2025-12-30 11:07:19.197Z	6.651° NNE
5 mins	2025-12-30 21:30:19.197Z	45.052° ENE	2025-12-30 21:32:19.197Z	72.111° E	17.752°	2025-12-30 21:35:19.197Z	112.409° ESE
8 mins	2025-12-30 23:10:19.197Z	337.489° NNW	2025-12-30 23:13:19.197Z	282.241° WNW	36.125°	2025-12-30 23:18:19.197Z	201.067° 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 103, 41918 on other resources

View IRIDIUM 103, 41918 on NASA - NSSDCA Website

View IRIDIUM 103, 41918 on Heavens-Above

View IRIDIUM 103, 41918 on Keep Track

View IRIDIUM 103, 41918 on Celestrak

View IRIDIUM 103, 41918 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 103, 41918

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 4 hours ago

TLE from 4 hours ago

TLE epoch observation values (Epoch: 2025-12-29T19:47:06.088Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #3 in the year 2017 (2017-01-14 UTC)

IRIDIUM 103 Visibility forecast

Co-orbital & Co-planar RSOs

Check out IRIDIUM 103, 41918 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 4 hours ago