DELTA 1 DEB, 18540
Orbit data source: Space-Track
DELTA 1 DEB, 18540 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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18540 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: 11 hours ago
TLE from 11 hours ago
0 DELTA 1 DEB
1 18540U 76077FC 25338.50026917 .00003776 00000-0 23656-1 0 9992
2 18540 103.9249 81.8340 0393272 336.4168 82.0314 12.34595890591244Epoch: 2025-12-04T12:00Z
TLE epoch observation values (Epoch: 2025-12-04T12:00:23.256Z)
Latitude
59.90005°
Longitude
162.99123°
Altitude
1,508.457 km
Speed
7.13 km/s
True Right ascension
03h 46m 34s
True Declination
59° 45' 53"
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
20:31:46
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,838.193 km
Perigee altitude
1,216.396 km
Semi-major axis
7,905.431 km
Eccentricity
0.03933
Inclination
103.9249°
RAAN
81.834°
Arg. of periapsis
336.4168°
True anomaly
86.52047°
Mean anomaly
82.0314°
Eccentric anomaly
84.27344°
Mean motion
3.08784 °/min
Orbital period
116.59 mins
BSTAR
0.023656
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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. |
|---|---|---|---|---|---|---|---|
| 13 mins | 2025-12-05 05:20:16.743Z | 108.736° ESE | 2025-12-05 05:26:16.743Z | 50.662° ENE | 28.272° | 2025-12-05 05:33:16.743Z | 355.345° N |
| 13 mins | 2025-12-05 07:14:16.743Z | 181.54° SSW | 2025-12-05 07:19:16.743Z | 241.353° WSW | 40.086° | 2025-12-05 07:27:16.743Z | 331.56° NNW |
| 18 mins | 2025-12-05 19:25:16.743Z | 31.351° NE | 2025-12-05 19:34:16.743Z | 111.971° ESE | 38.713° | 2025-12-05 19:43:16.743Z | 178.813° S |
| 16 mins | 2025-12-05 21:20:16.743Z | 4.634° NNE | 2025-12-05 21:27:16.743Z | 306.584° NW | 35.403° | 2025-12-05 21:36:16.743Z | 236.325° WSW |
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 descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in descending order |
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