DELTA 1 DEB, 12581
Orbit data source: Space-Track
DELTA 1 DEB, 12581 is space debris in LEO originally from a launch on Thu, 29 Jul 1976 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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12581 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: 2 days ago
TLE from 2 days ago
0 DELTA 1 DEB
1 12581U 76077DZ 25287.45572123 -.00000026 00000-0 17899-3 0 9993
2 12581 102.4798 183.6138 0380740 186.0426 355.7294 11.70235570 36644Epoch: 2025-10-14T10:56Z
TLE epoch observation values (Epoch: 2025-10-14T10:56:14.314Z)
Latitude
-1.50777°
Longitude
175.97812°
Altitude
1,508.459 km
Speed
7.244 km/s
True Right ascension
00h 13m 07s
True Declination
-1° 29' 59"
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
09:08:39
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
2,126.56 km
Perigee altitude
1,502.697 km
Semi-major axis
8,192.766 km
Eccentricity
0.03807
Inclination
102.4798°
RAAN
183.6138°
Arg. of periapsis
186.0426°
True anomaly
355.38835°
Mean anomaly
355.7294°
Eccentric anomaly
355.56054°
Mean motion
2.92683 °/min
Orbital period
123 mins
BSTAR
0.00017899
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Other satellites on launch #77 in the year 1976 (1976-07-29 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. |
|---|---|---|---|---|---|---|---|
| 18 mins | 2025-10-16 15:22:41.657Z | 117.348° SE | 2025-10-16 15:32:41.657Z | 52.043° ENE | 31.75° | 2025-10-16 15:40:41.657Z | 357.245° N |
| 21 mins | 2025-10-16 17:21:41.657Z | 174.976° S | 2025-10-16 17:31:41.657Z | 246.089° WSW | 42.233° | 2025-10-16 17:42:41.657Z | 336.501° NNW |
| 7 mins | 2025-10-16 19:30:41.657Z | 254.267° W | 2025-10-16 19:33:41.657Z | 270.697° WNW | 12.669° | 2025-10-16 19:37:41.657Z | 293.013° NW |
| 9 mins | 2025-10-17 04:18:41.657Z | 58.492° ENE | 2025-10-17 04:22:41.657Z | 87.779° E | 16.282° | 2025-10-17 04:27:41.657Z | 125.159° SE |
| 16 mins | 2025-10-17 06:16:41.657Z | 17.933° NNE | 2025-10-17 06:24:41.657Z | 346.301° N | 44.981° | 2025-10-17 06:32:41.657Z | 201.411° SSW |
| 11 mins | 2025-10-17 08:18:41.657Z | 351.155° N | 2025-10-17 08:23:41.657Z | 314.866° NW | 20.243° | 2025-10-17 08:29:41.657Z | 269.403° W |
| 8 mins | 2025-10-17 14:06:41.657Z | 61.398° ENE | 2025-10-17 14:09:41.657Z | 43.703° NE | 14.828° | 2025-10-17 14:14:41.657Z | 13.669° NNE |
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 ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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