Showing default

IRIDIUM 166, 43570

Orbit data source: Space-Track

IRIDIUM 166, 43570 is a payload satellite owned by Iridium (US) in LEO that was launched on Wed, 25 Jul 2018 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.

Loading next visibility...

Iframe embed code

<iframe src="https://www.satcat.com/sats-embedded/43570?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/43570?theme=dark&initialShowStats=false

Optional Secondary NORAD IDs

Max 10 NORAD IDs; Separated by commas

Initial load time (optional)

ISO8601 Format

TLE date request (optional)

ISO8601 Format

Identifier

43570, 2018-061B

Orbit

LEO

Country

Related business

Iridium Communications Inc. (US)

Manufacturer

NGIS SSG Gilbert

Mission

Operational Commercial Communications

Bus & Motor

ELITEBUS, Unknown motor

Mass

860 kg wet, 700 kg dry

Launch date (UTC)

2018-07-25 (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: 5 hours ago

TLE from 5 hours ago

0 IRIDIUM 166
1 43570U 18061B   26034.26970455  .00000078  00000-0  20873-4 0  9997
2 43570  86.3971 112.7642 0002068  95.8709 264.2722 14.34218153394207

Epoch: 2026-02-03T06:28Z

TLE epoch observation values (Epoch: 2026-02-03T06:28:22.473Z)

Latitude

-0.00006°

Longitude

-117.7825°

Altitude

780.865 km

Speed

7.463 km/s

True Right ascension

07h 31m 03s

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

13:17:03

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

776.109 km

Perigee altitude

773.151 km

Semi-major axis

7,152.767 km

Eccentricity

0.00021

Inclination

86.3971°

RAAN

112.7642°

Arg. of periapsis

95.8709°

True anomaly

264.24862°

Mean anomaly

264.2722°

Eccentric anomaly

264.26041°

Mean motion

3.58783 °/min

Orbital period

100.34 mins

BSTAR

0.000020873

Loading maneuver chart data...

Computing Atmospheric mass density...

Loading historical data...

Other satellites on launch #61 in the year 2018 (2018-07-25 UTC)

Did you know?

You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.

Click here to try in Sandbox

IRIDIUM 166 Visibility forecast

Loading observer location...
Set Observer location

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	2026-02-03 17:05:55.036Z	4.626° NNE	2026-02-03 17:09:55.036Z	66.713° ENE	42.601°	2026-02-03 17:14:55.036Z	168.878° S
5 mins	2026-02-04 04:23:55.036Z	104.565° ESE	2026-02-04 04:25:55.036Z	78.894° E	15.35°	2026-02-04 04:28:55.036Z	42.998° NE
8 mins	2026-02-04 06:02:55.036Z	204.557° SW	2026-02-04 06:05:55.036Z	265.845° W	39.382°	2026-02-04 06:10:55.036Z	352.733° N

Items per page:

1–3 of 3 items

of 1 page

Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

Please sign-in to view Co-orbital & Co-planar RSOs.

Click to sort rows by RSO header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Type header in ascending order	Click to sort rows by Inclination Δ header in ascending order	Click to sort rows by RAAN Δ header in ascending order	Click to sort rows by Coplanar Angle header in ascending order	Click to sort rows by SMA Δ header in ascending order	Click to sort rows by Orbital period header in ascending order	Click to sort rows by <5km Md TCA header in descending order

CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

Authenticating...

Click to sort rows by Secondary header in ascending order	Click to sort rows by Secondary name header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Owner header in ascending order	Click to sort rows by Obj. Type header in ascending order	Click to sort rows by Miss dist. header in ascending order	Click to sort rows by Rel. speed header in ascending order	Click to sort rows by Apr. angle header in ascending order	Click to sort rows by TCA header in descending order

Check out IRIDIUM 166, 43570 on other resources

View IRIDIUM 166, 43570 on NASA - NSSDCA Website

View IRIDIUM 166, 43570 on Heavens-Above

View IRIDIUM 166, 43570 on Keep Track

View IRIDIUM 166, 43570 on Celestrak

View IRIDIUM 166, 43570 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 166, 43570

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 5 hours ago

TLE from 5 hours ago

TLE epoch observation values (Epoch: 2026-02-03T06:28:22.473Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #61 in the year 2018 (2018-07-25 UTC)

IRIDIUM 166 Visibility forecast

Co-orbital & Co-planar RSOs

Check out IRIDIUM 166, 43570 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 5 hours ago