THORAD DELTA 1 DEB, 8157
Orbit data source: Space-Track
THORAD DELTA 1 DEB, 8157 is space debris in SSO originally from a launch on Fri, 15 Nov 1974 UTC launched from the Air Force Western Test Range (AFWTR). 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
8157 intel report (Beta)
Focus sentinelFocus sentinel
Create New Watchlist
Focus sentinelFocus sentinel
Edit Public Description
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, 0.1 m
Radar Cross Section
Small (<0.1 m²)
Expand to show TLE details & historyLast TLE update: 11 hours ago
TLE from 11 hours ago
0 THORAD DELTA 1 DEB
1 8157U 74089X 25345.98495594 .00000033 00000-0 52154-3 0 9997
2 8157 102.1365 344.7264 0132915 178.2407 242.0881 12.47516703324506Epoch: 2025-12-11T23:38Z
TLE epoch observation values (Epoch: 2025-12-11T23:38:20.193Z)
Latitude
57.01763°
Longitude
-110.04476°
Altitude
1,534.182 km
Speed
7.082 km/s
True Right ascension
21h 41m 53s
True Declination
56° 52' 33"
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
09:00:35
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,576.818 km
Perigee altitude
1,368.125 km
Semi-major axis
7,850.609 km
Eccentricity
0.01329
Inclination
102.1365°
RAAN
344.7264°
Arg. of periapsis
178.2407°
True anomaly
240.7527°
Mean anomaly
242.0881°
Eccentric anomaly
241.41935°
Mean motion
3.12024 °/min
Orbital period
115.38 mins
BSTAR
0.00052154
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 #89 in the year 1974 (1974-11-15 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.THORAD DELTA 1 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. |
|---|---|---|---|---|---|---|---|
| 11 mins | 2025-12-12 11:32:31.506Z | 49.068° ENE | 2025-12-12 11:37:31.506Z | 89.713° E | 19.892° | 2025-12-12 11:43:31.506Z | 139.777° SSE |
| 14 mins | 2025-12-12 13:25:31.506Z | 13.163° NNE | 2025-12-12 13:31:31.506Z | 315.452° NNW | 43.83° | 2025-12-12 13:39:31.506Z | 208.403° SW |
| 7 mins | 2025-12-12 15:20:31.506Z | 338.429° N | 2025-12-12 15:23:31.506Z | 314.17° NW | 16.066° | 2025-12-12 15:27:31.506Z | 281.724° WNW |
| 14 mins | 2025-12-12 22:33:31.506Z | 116.689° SE | 2025-12-12 22:40:31.506Z | 54.059° ENE | 30.632° | 2025-12-12 22:47:31.506Z | 357.804° N |
| 15 mins | 2025-12-13 00:25:31.506Z | 182.106° SSW | 2025-12-13 00:32:31.506Z | 244.787° WSW | 39.513° | 2025-12-13 00:40:31.506Z | 331.763° NNW |
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 |
|---|