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TDRS 3, 19548

Orbit data source: Space-Track

TDRS 3, 19548 is a payload satellite owned by GSFC (US) in GEO that was launched on Thu, 29 Sep 1988 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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<iframe src="https://www.satcat.com/sats-embedded/19548?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/19548?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

19548, 1988-091B

Orbit

GEO

Last TLE update

19 hours ago

Origin

National Aeronautics and Space Administration (NASA) (US)

Manufacturer

TRW

Mission

Operational Civil Communications

Bus & Motor

TDRS, AOCS

Mass

2,103 kg wet, ~1,673 kg dry

Launch date (UTC)

1988-09-29 (37 years ago)

Launch vehicle

SPACE SHUTTLE

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Hex Cyl + 2 Pan, 17.4 m

Radar Cross Section

13.873 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 19 hours ago

0 TDRS 3
1 19548U 88091B   25134.36188019 -.00000289  00000-0  00000-0 0  9994
2 19548  12.9071 343.6557 0037554 348.3405 341.7945  1.00271661121385

Epoch: 2025-05-14T08:41Z

Definitive object data (Epoch: 2025-05-14T08:41:06.448Z)

Latitude

-6.4106°

Longitude

-48.34196°

Altitude

35,637.798 km

Speed

3.086 km/s

True Right ascension

20h 57m 07s

True Declination

-6° 24' 15"

Sunlit

Object was in daylight at TLE epoch

Visualization TLE readout

Latitude

-12.24546°

Longitude

-127.97296°

Altitude

35,807.353 km

Speed

3.073 km/s

Apparent Right ascension

16h 02m 33s

Apparent Declination

-18° 36' 01"

Sunlit

Object is in full shadow

Visualization observer readout

Local Sidereal Time

11:56:57

Azimuth

122.775° SE

Elevation

8.239°

Doppler factor

Orbital elements

Apogee altitude

35,945.971 km

Perigee altitude

35,629.273 km

Semi-major axis

42,165.759 km

Eccentricity

0.0037554

Inclination

12.9071°

RAAN

343.6557°

Arg. of periapsis

348.3405°

True anomaly

341.65945°

Mean anomaly

341.7945°

Eccentric anomaly

341.72704°

Mean motion

0.25067 °/min

BSTAR

Unknown

Orbital period

1436.15 mins

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19548 neighbors

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Other satellites on launch #91 in the year 1988 (1988-09-29 UTC)

STS 26, 19547 (Decayed)

IUS R/B(1), 19549

IUS R/B(2), 19550

TDRS 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.
1083 mins	2025-05-15 07:53:57.919Z	119.037° SE	2025-05-15 16:05:57.919Z	102.122° ESE	23.585°	2025-05-16 01:56:57.919Z	121.361° SE

Authenticating...

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Check out TDRS 3, 19548 on other resources

View TDRS 3, 19548 on NASA - NSSDCA Website

View TDRS 3, 19548 on Heavens-Above

View TDRS 3, 19548 on Keep Track

View TDRS 3, 19548 on Celestrak

View TDRS 3, 19548 on Gunter's Space Page

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