DELTA 1 DEB, 21497
Orbit data source: Space-Track
DELTA 1 DEB, 21497 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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21497 intel report (Beta)
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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 21497U 75052FS 26006.25823483 .00000040 00000-0 16911-3 0 9996
2 21497 100.0220 299.0455 0059353 32.0182 134.3328 13.32973959686426Epoch: 2026-01-06T06:11Z
TLE epoch observation values (Epoch: 2026-01-06T06:11:51.489Z)
Latitude
12.92604°
Longitude
-77.44994°
Altitude
1,168.876 km
Speed
7.255 km/s
True Right ascension
08h 05m 25s
True Declination
12° 51' 19"
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
07:26:56
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,177.488 km
Perigee altitude
1,088.327 km
Semi-major axis
7,511.044 km
Eccentricity
0.00594
Inclination
100.022°
RAAN
299.0455°
Arg. of periapsis
32.0182°
True anomaly
134.81678°
Mean anomaly
134.3328°
Eccentric anomaly
134.57504°
Mean motion
3.33421 °/min
Orbital period
107.97 mins
BSTAR
0.00016911
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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. |
|---|---|---|---|---|---|---|---|
| 11 mins | 2026-01-07 08:58:54.594Z | 0.773° NNE | 2026-01-07 09:03:54.594Z | 297.463° NW | 37.739° | 2026-01-07 09:09:54.594Z | 221.462° SW |
| 6 mins | 2026-01-07 17:35:54.594Z | 79.984° E | 2026-01-07 17:37:54.594Z | 59.175° ENE | 16.741° | 2026-01-07 17:41:54.594Z | 20.343° NNE |
| 11 mins | 2026-01-07 19:18:54.594Z | 166.592° S | 2026-01-07 19:23:54.594Z | 288.103° WNW | 44.796° | 2026-01-07 19:29:54.594Z | 343.411° N |
| 5 mins | 2026-01-08 06:40:54.594Z | 73.105° E | 2026-01-08 06:42:54.594Z | 92.429° ESE | 14.79° | 2026-01-08 06:45:54.594Z | 119.598° SE |
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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