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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19548 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
TRW
Mission
Operational Civil Communications
Bus & Motor
TDRS, AOCS
Mass
2,103 kg wet, ~1,673 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Hex Cyl + 2 Pan, 8.9 m
Radar Cross Section
13.873 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 14 hours ago
TLE from 14 hours ago
0 TDRS 3
1 19548U 88091B 25334.42435336 -.00000287 00000-0 00000-0 0 9998
2 19548 12.7546 342.3099 0041185 342.8380 208.2667 1.00277013123391Epoch: 2025-11-30T10:11Z
TLE epoch observation values (Epoch: 2025-11-30T10:11:04.130Z)
Latitude
-2.39848°
Longitude
-49.39285°
Altitude
35,937.388 km
Speed
3.064 km/s
True Right ascension
11h 31m 39s
True Declination
-2° 23' 46"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
21:32:46
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
35,959.777 km
Perigee altitude
35,612.47 km
Semi-major axis
42,164.26 km
Eccentricity
0.00412
Inclination
12.7546°
RAAN
342.3099°
Arg. of periapsis
342.838°
True anomaly
208.04421°
Mean anomaly
208.2667°
Eccentric anomaly
208.15535°
Mean motion
0.25068 °/min
Orbital period
1,436.07 mins
BSTAR
0
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Other satellites on launch #91 in the year 1988 (1988-09-29 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.TDRS 3 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. |
|---|---|---|---|---|---|---|---|
| 778 mins | 2025-11-30 23:52:50.638Z | 107.135° ESE | 2025-12-01 02:57:50.638Z | 102.24° ESE | 23.522° | 2025-12-01 12:50:50.638Z | 121.477° SE |
| 317 mins | 2025-12-01 18:35:50.638Z | 119.085° SE | 2025-12-01 23:52:50.638Z | 106.97° ESE | 21.271° | 2025-12-01 23:52:50.638Z | 106.97° ESE |
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19548 neighbors
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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
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 |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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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 |
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