DELTA 1 DEB, 15540
Orbit data source: Space-Track
DELTA 1 DEB, 15540 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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15540 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: 2 days ago
TLE from 2 days ago
0 DELTA 1 DEB
1 15540U 76077EU 26211.66153661 .00000330 00000-0 44367-2 0 9990
2 15540 102.7139 157.2919 0572670 325.6125 212.2569 11.68262742504123Epoch: 2026-07-30T15:52Z
TLE epoch observation values (Epoch: 2026-07-30T15:52:36.763Z)
Latitude
5.2275°
Longitude
152.01736°
Altitude
2,232.578 km
Speed
6.635 km/s
True Right ascension
22h 33m 52s
True Declination
5° 12' 06"
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
22:11:48
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
2,293.566 km
Perigee altitude
1,354.158 km
Semi-major axis
8,201.999 km
Eccentricity
0.05727
Inclination
102.7139°
RAAN
157.2919°
Arg. of periapsis
325.6125°
True anomaly
208.95663°
Mean anomaly
212.2569°
Eccentric anomaly
210.58728°
Mean motion
2.92189 °/min
Orbital period
123.21 mins
BSTAR
0.0044367
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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. |
|---|---|---|---|---|---|---|---|
| 22 mins | 2026-08-01 08:35:24.304Z | 27.809° NE | 2026-08-01 08:46:24.304Z | 103.646° ESE | 39.425° | 2026-08-01 08:57:24.304Z | 176.82° S |
| 21 mins | 2026-08-01 10:36:24.304Z | 7.72° NNE | 2026-08-01 10:46:24.304Z | 301.03° NW | 37.305° | 2026-08-01 10:57:24.304Z | 233.021° WSW |
| 10 mins | 2026-08-01 12:39:24.304Z | 347.504° N | 2026-08-01 12:43:24.304Z | 326.245° NNW | 14.868° | 2026-08-01 12:49:24.304Z | 295.625° NW |
| 14 mins | 2026-08-01 18:23:24.304Z | 99.277° ESE | 2026-08-01 18:29:24.304Z | 52.673° ENE | 26.015° | 2026-08-01 18:37:24.304Z | 358.523° N |
| 17 mins | 2026-08-01 20:22:24.304Z | 169.648° S | 2026-08-01 20:29:24.304Z | 263.959° W | 44.032° | 2026-08-01 20:39:24.304Z | 339.021° N |
| 6 mins | 2026-08-01 22:29:24.304Z | 257.821° W | 2026-08-01 22:32:24.304Z | 278.459° WNW | 12.843° | 2026-08-01 22:35:24.304Z | 297.551° NW |
| 15 mins | 2026-08-02 07:16:24.304Z | 51.344° ENE | 2026-08-02 07:23:24.304Z | 89.53° E | 19.516° | 2026-08-02 07:31:24.304Z | 132.088° SE |
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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