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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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ISO8601 Format

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 (10 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: 15 hours ago

TLE from 15 hours ago

0 IRIDIUM 103
1 41918U 17003B   26230.03724689  .00000015  00000-0 -16618-5 0  9990
2 41918  86.3915  62.5798 0002231  93.4532 266.6919 14.34217237502097

Epoch: 2026-08-18T00:53Z

TLE epoch observation values (Epoch: 2026-08-18T00:53:38.131Z)

Latitude

-0.00001°

Longitude

82.7601°

Altitude

780.812 km

Speed

7.463 km/s

True Right ascension

04h 10m 19s

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

07:06:17

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

776.229 km

Perigee altitude

773.038 km

Semi-major axis

7,152.77 km

Eccentricity

0.00022

Inclination

86.3915°

RAAN

62.5798°

Arg. of periapsis

93.4532°

True anomaly

266.66638°

Mean anomaly

266.6919°

Eccentric anomaly

266.67914°

Mean motion

3.58783 °/min

Orbital period

100.34 mins

BSTAR

-0.0000016618

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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.
9 mins	2026-08-19 00:54:35.686Z	1.597° NNE	2026-08-19 00:59:35.686Z	130.763° SE	43.317°	2026-08-19 01:03:35.686Z	172.106° S
5 mins	2026-08-19 12:12:35.686Z	109.747° ESE	2026-08-19 12:14:35.686Z	83.606° E	16.825°	2026-08-19 12:17:35.686Z	44.77° NE
8 mins	2026-08-19 13:51:35.686Z	206.976° SW	2026-08-19 13:55:35.686Z	294.186° NW	36.754°	2026-08-19 13:59:35.686Z	349.497° 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 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: 15 hours ago

TLE from 15 hours ago

TLE epoch observation values (Epoch: 2026-08-18T00:53:38.131Z)

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: 15 hours ago