DELTA 1 DEB, 21523
Orbit data source: Space-Track
DELTA 1 DEB, 21523 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.
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21523 intel report (Beta)
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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, 1.1 m
Radar Cross Section
Small (<0.1 m²)
Expand to show TLE details & historyLast TLE update: 2 days ago
TLE from 2 days ago
0 DELTA 1 DEB
1 21523U 75052GU 26080.60520544 -.00000143 00000-0 -58892-3 0 9999
2 21523 99.5730 127.2398 0714321 266.5693 256.3956 12.06094261496450Epoch: 2026-03-21T14:31Z
TLE epoch observation values (Epoch: 2026-03-21T14:31:29.750Z)
Latitude
24.4571°
Longitude
-85.37904°
Altitude
1,828.996 km
Speed
6.897 km/s
True Right ascension
20h 46m 28s
True Declination
24° 20' 41"
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
04:51:08
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
2,224.712 km
Perigee altitude
1,077.612 km
Semi-major axis
8,029.299 km
Eccentricity
0.07143
Inclination
99.573°
RAAN
127.2398°
Arg. of periapsis
266.5693°
True anomaly
248.62733°
Mean anomaly
256.3956°
Eccentric anomaly
252.49243°
Mean motion
3.01666 °/min
Orbital period
119.34 mins
BSTAR
-0.00058892
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Other satellites on launch #52 in the year 1975 (1975-06-12 UTC)
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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
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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. |
|---|---|---|---|---|---|---|---|
| 19 mins | 2026-03-24 01:25:43.084Z | 119.945° SE | 2026-03-24 01:34:43.084Z | 60.308° ENE | 32.436° | 2026-03-24 01:44:43.084Z | 358.424° N |
| 20 mins | 2026-03-24 03:22:43.084Z | 181.347° SSW | 2026-03-24 03:31:43.084Z | 268.509° W | 42.189° | 2026-03-24 03:42:43.084Z | 340.395° N |
| 8 mins | 2026-03-24 05:27:43.084Z | 262.044° W | 2026-03-24 05:30:43.084Z | 279.009° WNW | 13.229° | 2026-03-24 05:35:43.084Z | 305.649° NW |
| 14 mins | 2026-03-24 13:59:43.084Z | 42.042° NE | 2026-03-24 14:06:43.084Z | 84.859° E | 21.079° | 2026-03-24 14:13:43.084Z | 131.645° SE |
| 19 mins | 2026-03-24 15:55:43.084Z | 13.861° NNE | 2026-03-24 16:05:43.084Z | 246.01° WSW | 44.95° | 2026-03-24 16:14:43.084Z | 199.011° SSW |
| 15 mins | 2026-03-24 17:53:43.084Z | 353.305° N | 2026-03-24 18:00:43.084Z | 312.164° NW | 23.525° | 2026-03-24 18:08:43.084Z | 260.548° W |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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