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LEASAT 3, 15643

Orbit data source: Space-Track

LEASAT 3, 15643 is a payload satellite owned by HCI (US) in GEO that was launched on Fri, 12 Apr 1985 UTC via an SPACE SHUTTLE launch vehicle from the Air Force Eastern Test Range (AFETR). 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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https://www.satcat.com/sats-embedded/15643?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

15643, 1985-028C

Orbit

GEO

Last TLE update

15 hours ago

Origin

Echostar Corp (US)

Manufacturer

Hughes

Mission

Commercial Communications

Bus & Motor

HS-381, R-4D-10 X2

Mass

~3,231 kg wet, ~1,230 kg dry

Launch date (UTC)

1985-04-12 (40 years ago)

Launch vehicle

SPACE SHUTTLE

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl + 1 Ant, 6.2 m

Radar Cross Section

21.173 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 15 hours ago

0 LEASAT 3
1 15643U 85028C   25134.44336391 -.00000057  00000-0  00000+0 0  9992
2 15643  12.0914 310.4593 0076217 296.0447  51.8268  0.96961749132803

Epoch: 2025-05-14T10:38Z

Definitive object data (Epoch: 2025-05-14T10:38:26.641Z)

Latitude

-2.36989°

Longitude

-92.77525°

Altitude

36,538.827 km

Speed

3.055 km/s

True Right ascension

19h 57m 03s

True Declination

-2° 22' 03"

Sunlit

Object was in daylight at TLE epoch

Visualization TLE readout

Latitude

-6.14396°

Longitude

128.44137°

Altitude

36,712.089 km

Speed

3.043 km/s

Apparent Right ascension

10h 43m 07s

Apparent Declination

-12° 52' 51"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

10:32:34

Azimuth

176.772° S

Elevation

37.146°

Doppler factor

Orbital elements

Apogee altitude

37,070.445 km

Perigee altitude

36,413.15 km

Semi-major axis

43,119.934 km

Eccentricity

0.0076217

Inclination

12.0914°

RAAN

310.4593°

Arg. of periapsis

296.0447°

True anomaly

52.51746°

Mean anomaly

51.8268°

Eccentric anomaly

52.17172°

Mean motion

0.2424 °/min

BSTAR

Unknown

Orbital period

1485.17 mins

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15643 neighbors

Authenticating...

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Other satellites on launch #28 in the year 1985 (1985-04-12 UTC)

STS 51D, 15641 (Decayed)

NAHUEL I1 (ANIK C1), 15642

ANIK C1 R/B(PAM-D), 15644

LEASAT 3 PKM, 16229

LEASAT 3 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.
1440 mins	2025-05-15 02:00:48.487Z	176.773° S	2025-05-15 18:22:48.487Z	188.29° SSW	40.127°	2025-05-16 02:00:48.487Z	193.403° SSW

Authenticating...

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Check out LEASAT 3, 15643 on other resources

View LEASAT 3, 15643 on NASA - NSSDCA Website

View LEASAT 3, 15643 on Heavens-Above

View LEASAT 3, 15643 on Keep Track

View LEASAT 3, 15643 on Celestrak

View LEASAT 3, 15643 on Gunter's Space Page

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