DELTA 1 DEB, 21473
Orbit data source: Space-Track
DELTA 1 DEB, 21473 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
Request partner network tasking
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
21473 intel report (Beta)
Focus sentinelFocus sentinel
Create New Watchlist
Focus sentinelFocus sentinel
Edit Public Description
Expand to show TLE details & historyLast TLE update: 2 days ago
TLE from 2 days ago
0 DELTA 1 DEB
1 21473U 75052FH 26020.07238760 .00000795 00000-0 91764-3 0 9990
2 21473 99.9200 208.4501 0239437 339.1338 139.6083 13.61089236713118Epoch: 2026-01-20T01:44Z
TLE epoch observation values (Epoch: 2026-01-20T01:44:14.288Z)
Latitude
58.18914°
Longitude
-100.77765°
Altitude
1,178.346 km
Speed
7.202 km/s
True Right ascension
02h 58m 57s
True Declination
58° 02' 36"
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
06:40:44
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,206.387 km
Perigee altitude
851.677 km
Semi-major axis
7,407.169 km
Eccentricity
0.02394
Inclination
99.92°
RAAN
208.4501°
Arg. of periapsis
339.1338°
True anomaly
141.34635°
Mean anomaly
139.6083°
Eccentric anomaly
140.48126°
Mean motion
3.40459 °/min
Orbital period
105.74 mins
BSTAR
0.00091764
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 | 2026-01-22 11:29:51.906Z | 128.004° SE | 2026-01-22 11:34:51.906Z | 59.22° ENE | 31.377° | 2026-01-22 11:39:51.906Z | 1.774° NNE |
| 8 mins | 2026-01-22 13:15:51.906Z | 216.859° SW | 2026-01-22 13:18:51.906Z | 262.653° W | 27.723° | 2026-01-22 13:23:51.906Z | 323.045° NNW |
| 11 mins | 2026-01-23 00:19:51.906Z | 41.07° NE | 2026-01-23 00:24:51.906Z | 94.846° ESE | 28.052° | 2026-01-23 00:30:51.906Z | 155.324° SSE |
| 12 mins | 2026-01-23 02:03:51.906Z | 0.489° NNE | 2026-01-23 02:08:51.906Z | 303.426° NW | 37.372° | 2026-01-23 02:15:51.906Z | 220.808° SW |
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 |
|---|