DELTA 1 DEB, 21686
Orbit data source: Space-Track
DELTA 1 DEB, 21686 is space debris in SSO originally from a launch on Thu, 12 Jun 1975 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
Embed this page
Focus sentinelFocus sentinel
21686 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: 1 day ago
TLE from 1 day ago
0 DELTA 1 DEB
1 21686U 75052JN 25288.92383567 .00008714 00000-0 37650-2 0 9993
2 21686 99.9923 276.6274 0144171 260.5955 97.8893 14.19257751720128Epoch: 2025-10-15T22:10Z
TLE epoch observation values (Epoch: 2025-10-15T22:10:19.401Z)
Latitude
-0.00011°
Longitude
-80.64436°
Altitude
846.462 km
Speed
7.421 km/s
True Right ascension
18h 26m 30s
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
21:16:52
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
928.938 km
Perigee altitude
721.239 km
Semi-major axis
7,203.226 km
Eccentricity
0.01442
Inclination
99.9923°
RAAN
276.6274°
Arg. of periapsis
260.5955°
True anomaly
99.52148°
Mean anomaly
97.8893°
Eccentric anomaly
98.70582°
Mean motion
3.5502 °/min
Orbital period
101.4 mins
BSTAR
0.003765
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 #52 in the year 1975 (1975-06-12 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.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. |
|---|---|---|---|---|---|---|---|
| 10 mins | 2025-10-17 11:58:55.052Z | 22.931° NE | 2025-10-17 12:03:55.052Z | 94.981° ESE | 41.488° | 2025-10-17 12:08:55.052Z | 182.526° SSW |
| 6 mins | 2025-10-17 13:40:55.052Z | 333.075° NNW | 2025-10-17 13:43:55.052Z | 295.125° NW | 18.488° | 2025-10-17 13:46:55.052Z | 260.082° W |
| 6 mins | 2025-10-17 21:43:55.052Z | 87.35° E | 2025-10-17 21:45:55.052Z | 64.338° ENE | 16.688° | 2025-10-17 21:49:55.052Z | 20.305° NNE |
| 9 mins | 2025-10-17 23:21:55.052Z | 172.895° S | 2025-10-17 23:25:55.052Z | 273.694° WNW | 43.907° | 2025-10-17 23:30:55.052Z | 340.579° N |
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 ascending 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 ascending order |
|---|