DELTA 1 DEB, 21441
Orbit data source: Space-Track
DELTA 1 DEB, 21441 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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21441 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, 0.1 m
Radar Cross Section
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 13 hours ago
TLE from 13 hours ago
0 DELTA 1 DEB
1 21441U 75052DZ 26182.11890641 -.00000023 00000-0 36710-4 0 9997
2 21441 99.7180 299.2430 0304562 115.9860 60.9472 12.84266241647367Epoch: 2026-07-01T02:51Z
TLE epoch observation values (Epoch: 2026-07-01T02:51:13.513Z)
Latitude
-0.14941°
Longitude
157.23101°
Altitude
1,218.721 km
Speed
7.296 km/s
True Right ascension
07h 56m 52s
True Declination
0° 08' 55"
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
03:45:22
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,556.261 km
Perigee altitude
1,087.242 km
Semi-major axis
7,699.889 km
Eccentricity
0.03046
Inclination
99.718°
RAAN
299.243°
Arg. of periapsis
115.986°
True anomaly
64.05398°
Mean anomaly
60.9472°
Eccentric anomaly
62.49497°
Mean motion
3.2123 °/min
Orbital period
112.07 mins
BSTAR
0.00003671
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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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2026-07-01 19:24:57.295Z | 47.059° ENE | 2026-07-01 19:29:57.295Z | 98.814° ESE | 20.31° | 2026-07-01 19:33:57.295Z | 138.027° SSE |
| 11 mins | 2026-07-01 21:15:57.295Z | 1.679° NNE | 2026-07-01 21:19:57.295Z | 307.051° NW | 40.117° | 2026-07-01 21:26:57.295Z | 213.069° SW |
| 8 mins | 2026-07-02 06:10:57.295Z | 95.497° ESE | 2026-07-02 06:14:57.295Z | 54.906° ENE | 20.922° | 2026-07-02 06:18:57.295Z | 16.754° NNE |
| 13 mins | 2026-07-02 07:57:57.295Z | 174.125° S | 2026-07-02 08:03:57.295Z | 231.948° WSW | 43.066° | 2026-07-02 08:10:57.295Z | 339.994° N |
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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