THOR ABLESTAR DEB, 558
Orbit data source: Space-Track
THOR ABLESTAR DEB, 558 is space debris in LEO originally from a launch on Thu, 29 Jun 1961 UTC launched from the Air Force Eastern Test Range (AFETR). Debris objects in space refer to the collection of defunct objects orbiting the Earth. Examples of debris include non-operational satellites, rocket bodies, and fragments generated from explosions, collisions, or faulty payload assembly.
Focus sentinelFocus sentinel
Request partner network tasking
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
558 intel report (Beta)
Focus sentinelFocus sentinel
Edit Public Description
Focus sentinelFocus sentinel
Create New Watchlist
Identifier
Orbit
Country
USRelated business
Manufacturer
Unknown
Mission
Spacecraft
Bus & Motor
Unknown
Mass
Unknown
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Unknown shape, 0.2 m
Radar Cross Section
Small (<0.1 m²)
Expand to show TLE details & historyLast TLE update: 12 hours ago
TLE from 12 hours ago
0 THOR ABLESTAR DEB
1 558U 61015GQ 26129.49761953 -.00000133 00000-0 -17300-3 0 9998
2 558 65.6996 239.9153 0463770 115.2598 325.4926 12.86519851 44589Epoch: 2026-05-09T11:56Z
TLE epoch observation values (Epoch: 2026-05-09T11:56:34.327Z)
Latitude
63.00212°
Longitude
-104.7012°
Altitude
1,036.858 km
Speed
7.476 km/s
True Right ascension
20h 07m 01s
True Declination
62° 52' 05"
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
07:53:22
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,670.696 km
Perigee altitude
957.223 km
Semi-major axis
7,692.096 km
Eccentricity
0.04638
Inclination
65.6996°
RAAN
239.9153°
Arg. of periapsis
115.2598°
True anomaly
322.33281°
Mean anomaly
325.4926°
Eccentric anomaly
323.92803°
Mean motion
3.21719 °/min
Orbital period
111.9 mins
BSTAR
-0.000173
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 #15 in the year 1961 (1961-06-29 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.THOR ABLESTAR DEB 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. |
|---|---|---|---|---|---|---|---|
| 13 mins | 2026-05-10 08:09:39.367Z | 180.677° SSW | 2026-05-10 08:16:39.367Z | 117.622° SE | 34.748° | 2026-05-10 08:22:39.367Z | 46.54° ENE |
| 11 mins | 2026-05-10 10:06:39.367Z | 247.36° WSW | 2026-05-10 10:12:39.367Z | 317.232° NNW | 31.987° | 2026-05-10 10:17:39.367Z | 13.632° NNE |
| 6 mins | 2026-05-10 16:05:39.367Z | 14.257° NNE | 2026-05-10 16:07:39.367Z | 36.836° NE | 16.313° | 2026-05-10 16:11:39.367Z | 77.673° E |
| 10 mins | 2026-05-10 17:59:39.367Z | 330.795° NNW | 2026-05-10 18:03:39.367Z | 355.735° N | 44.749° | 2026-05-10 18:09:39.367Z | 149.464° SSE |
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 |
|---|