TRAAC, 205
Orbit data source: Space-Track
TRAAC, 205 is a payload satellite owned by USN BuWeps (US) in LEO that was launched on Wed, 15 Nov 1961 UTC via a THOR ABLESTAR 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.
Focus sentinelFocus sentinel
Request partner network tasking
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
205 intel report (Beta)
Focus sentinelFocus sentinel
Edit Public Description
Focus sentinelFocus sentinel
Edit Sat Name
Focus sentinelFocus sentinel
Create New Watchlist
Identifier
Orbit
Country
USRelated business
Manufacturer
APL
Mission
Spacecraft
Bus & Motor
TRANSIT 4, Unknown motor
Mass
105 kg wet, 105 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
DISK + ANT, 5.0 m
Radar Cross Section
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 12 hours ago
TLE from 12 hours ago
0 TRAAC
1 00205U 61031B 26208.59968003 .00000060 00000-0 44757-4 0 9993
2 00205 32.4425 316.2771 0102310 279.0003 79.9051 13.62576100224587Epoch: 2026-07-27T14:23Z
TLE epoch observation values (Epoch: 2026-07-27T14:23:32.354Z)
Latitude
0.00001°
Longitude
155.11137°
Altitude
1,012.563 km
Speed
7.354 km/s
True Right ascension
21h 05m 06s
True Declination
0° 00' 00"
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
15:25:44
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,105.521 km
Perigee altitude
953.941 km
Semi-major axis
7,407.868 km
Eccentricity
0.01023
Inclination
32.4425°
RAAN
316.2771°
Arg. of periapsis
279.0003°
True anomaly
81.06185°
Mean anomaly
79.9051°
Eccentric anomaly
80.48323°
Mean motion
3.40411 °/min
Orbital period
105.75 mins
BSTAR
0.000044757
Loading maneuver chart data...
Computing Atmospheric mass density...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Other satellites on launch #31 in the year 1961 (1961-11-15 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.TRAAC Visibility forecast
Loading 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 | 2026-07-28 09:55:10.193Z | 192.82° SSW | 2026-07-28 09:59:10.193Z | 155.816° SSE | 18.686° | 2026-07-28 10:04:10.193Z | 109.723° ESE |
| 11 mins | 2026-07-28 11:46:10.193Z | 226.532° WSW | 2026-07-28 11:51:10.193Z | 166.341° S | 32.367° | 2026-07-28 11:57:10.193Z | 102.887° ESE |
| 11 mins | 2026-07-28 13:38:10.193Z | 247.522° W | 2026-07-28 13:43:10.193Z | 182.729° SSW | 35.993° | 2026-07-28 13:49:10.193Z | 114.83° SE |
| 11 mins | 2026-07-28 15:30:10.193Z | 252.651° W | 2026-07-28 15:35:10.193Z | 197.67° SSW | 28.25° | 2026-07-28 15:41:10.193Z | 139.369° SSE |
| 4 mins | 2026-07-28 17:25:10.193Z | 225.13° WSW | 2026-07-28 17:26:10.193Z | 216.334° SW | 12.958° | 2026-07-28 17:29:10.193Z | 190.374° SSW |
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 |
|---|
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 |
|---|