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IRIDIUM 138, 43071

Orbit data source: Space-Track

IRIDIUM 138, 43071 is a payload satellite owned by Iridium (US) in LEO that was launched on Sat, 23 Dec 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/43071?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

43071, 2017-083B

Orbit

LEO

Last TLE update

14 hours ago

Origin

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)

2017-12-23 (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, 9.4 m

Radar Cross Section

14.423 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 14 hours ago

0 IRIDIUM 138
1 43071U 17083B   25182.17151986  .00000026  00000-0  22677-5 0  9997
2 43071  86.3959 108.4448 0002756  89.6341 270.5171 14.34217651393829

Epoch: 2025-07-01T04:06Z

TLE epoch observation values (Epoch: 2025-07-01T04:06:59.315Z)

Latitude

-0.00001°

Longitude

127.22685°

Altitude

780.701 km

Speed

7.464 km/s

True Right ascension

07h 13m 46s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

63.34187°

Longitude

-60.18487°

Altitude

786.917 km

Speed

7.467 km/s

Apparent Right ascension

18h 07m 09s

Apparent Declination

16° 00' 18"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

05:42:53

Azimuth

352.98° N

Elevation

-33.794°

Doppler factor

Orbital elements

Apogee altitude

776.603 km

Perigee altitude

772.661 km

Semi-major axis

7,152.769 km

Eccentricity

0.00028

Inclination

86.3959°

RAAN

108.4448°

Arg. of periapsis

89.6341°

True anomaly

Unknown

Mean anomaly

270.5171°

Eccentric anomaly

Unknown

Mean motion

3.58783 °/min

Orbital period

100.34 mins

BSTAR

0.0000022677

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Other satellites on launch #83 in the year 2017 (2017-12-23 UTC)

IRIDIUM 138 Visibility forecast

Observer location: undefined°, undefined°

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	2025-07-01 19:18:11.612Z	161.507° S	2025-07-01 19:22:11.612Z	94.135° ESE	39.107°	2025-07-01 19:27:11.612Z	12.348° NNE
4 mins	2025-07-01 21:02:11.612Z	268.404° W	2025-07-01 21:03:11.612Z	281.955° WNW	15.721°	2025-07-01 21:06:11.612Z	319.465° NNW
8 mins	2025-07-02 07:30:11.612Z	346.264° N	2025-07-02 07:33:11.612Z	289.701° WNW	41.65°	2025-07-02 07:38:11.612Z	191.284° SSW

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Check out IRIDIUM 138, 43071 on other resources

View IRIDIUM 138, 43071 on NASA - NSSDCA Website

View IRIDIUM 138, 43071 on Heavens-Above

View IRIDIUM 138, 43071 on Keep Track

View IRIDIUM 138, 43071 on Celestrak

View IRIDIUM 138, 43071 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.