DELTA 1 DEB, 21276
Orbit data source: Space-Track
DELTA 1 DEB, 21276 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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21276 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, 1.2 m
Radar Cross Section
Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 10 hours ago
TLE from 10 hours ago
0 DELTA 1 DEB
1 21276U 75052M 25300.47147874 .00000038 00000-0 16156-3 0 9992
2 21276 100.0220 199.3316 0045752 305.7441 227.6899 13.35548423680661Epoch: 2025-10-27T11:18Z
TLE epoch observation values (Epoch: 2025-10-27T11:18:55.763Z)
Latitude
6.77508°
Longitude
174.7233°
Altitude
1,151.24 km
Speed
7.267 km/s
True Right ascension
01h 22m 06s
True Declination
6° 44' 13"
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
16:44:55
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,157.565 km
Perigee altitude
1,088.925 km
Semi-major axis
7,501.382 km
Eccentricity
0.00458
Inclination
100.022°
RAAN
199.3316°
Arg. of periapsis
305.7441°
True anomaly
227.30368°
Mean anomaly
227.6899°
Eccentric anomaly
227.49664°
Mean motion
3.34065 °/min
Orbital period
107.76 mins
BSTAR
0.00016156
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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. |
|---|---|---|---|---|---|---|---|
| 10 mins | 2025-10-28 05:03:27.833Z | 45.212° ENE | 2025-10-28 05:08:27.833Z | 95.902° ESE | 22.655° | 2025-10-28 05:13:27.833Z | 144.563° SSE |
| 12 mins | 2025-10-28 06:49:27.833Z | 4.639° NNE | 2025-10-28 06:54:27.833Z | 305.745° NW | 40.45° | 2025-10-28 07:01:27.833Z | 213.854° SW |
| 5 mins | 2025-10-28 15:25:27.833Z | 76.622° E | 2025-10-28 15:27:27.833Z | 57.687° ENE | 14.77° | 2025-10-28 15:30:27.833Z | 29.326° NE |
| 12 mins | 2025-10-28 17:07:27.833Z | 158.28° S | 2025-10-28 17:13:27.833Z | 18.813° NNE | 44.18° | 2025-10-28 17:19:27.833Z | 346.923° N |
| 6 mins | 2025-10-28 18:57:27.833Z | 245.716° WSW | 2025-10-28 18:59:27.833Z | 265.184° W | 15.502° | 2025-10-28 19:03:27.833Z | 302.831° NW |
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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