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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 (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: 11 hours ago

TLE from 11 hours ago

0 IRIDIUM 103
1 41918U 17003B   26138.36141580  .00000060  00000-0  14410-4 0  9992
2 41918  86.3944 100.9248 0002562  88.5572 271.5918 14.34217915488957

Epoch: 2026-05-18T08:40Z

TLE epoch observation values (Epoch: 2026-05-18T08:40:26.325Z)

Latitude

0.00007°

Longitude

94.76434°

Altitude

780.667 km

Speed

7.464 km/s

True Right ascension

06h 43m 41s

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

04:39:35

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

776.464 km

Perigee altitude

772.799 km

Semi-major axis

7,152.768 km

Eccentricity

0.00026

Inclination

86.3944°

RAAN

100.9248°

Arg. of periapsis

88.5572°

True anomaly

271.56245°

Mean anomaly

271.5918°

Eccentric anomaly

271.57713°

Mean motion

3.58783 °/min

Orbital period

100.34 mins

BSTAR

0.00001441

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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.
8 mins	2026-05-18 22:12:00.644Z	188.069° SSW	2026-05-18 22:15:00.644Z	231.239° WSW	44.023°	2026-05-18 22:20:00.644Z	359.411° N
6 mins	2026-05-19 08:43:00.644Z	37.041° NE	2026-05-19 08:46:00.644Z	85.858° E	23.611°	2026-05-19 08:49:00.644Z	128.171° SE
7 mins	2026-05-19 10:23:00.644Z	330.27° NNW	2026-05-19 10:26:00.644Z	284.259° WNW	28.539°	2026-05-19 10:30:00.644Z	218.662° SW

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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: 11 hours ago

TLE from 11 hours ago

TLE epoch observation values (Epoch: 2026-05-18T08:40:26.325Z)

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: 11 hours ago