DELTA 1 DEB, 21547
Orbit data source: Space-Track
DELTA 1 DEB, 21547 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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21547 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: 13 hours ago
TLE from 13 hours ago
0 DELTA 1 DEB
1 21547U 75052HB 25316.19708856 .00001094 00000-0 13015-2 0 9995
2 21547 99.7625 183.4779 0249797 44.2802 71.5376 13.57274925701806Epoch: 2025-11-12T04:43Z
TLE epoch observation values (Epoch: 2025-11-12T04:43:48.451Z)
Latitude
60.04753°
Longitude
-101.76732°
Altitude
1,001.219 km
Speed
7.384 km/s
True Right ascension
01h 23m 01s
True Declination
59° 54' 12"
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
13:46:06
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,228.28 km
Perigee altitude
857.529 km
Semi-major axis
7,421.042 km
Eccentricity
0.02498
Inclination
99.7625°
RAAN
183.4779°
Arg. of periapsis
44.2802°
True anomaly
74.27879°
Mean anomaly
71.5376°
Eccentric anomaly
72.9056°
Mean motion
3.39505 °/min
Orbital period
106.04 mins
BSTAR
0.0013015
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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. |
|---|---|---|---|---|---|---|---|
| 12 mins | 2025-11-13 03:44:13.849Z | 25.03° NE | 2025-11-13 03:50:13.849Z | 99.786° ESE | 38.871° | 2025-11-13 03:56:13.849Z | 176.404° S |
| 8 mins | 2025-11-13 05:31:13.849Z | 338.32° N | 2025-11-13 05:34:13.849Z | 301.386° NW | 23.939° | 2025-11-13 05:39:13.849Z | 246.709° WSW |
| 6 mins | 2025-11-13 13:57:13.849Z | 98.323° ESE | 2025-11-13 14:00:13.849Z | 58.002° ENE | 19.775° | 2025-11-13 14:03:13.849Z | 20.643° NNE |
| 9 mins | 2025-11-13 15:40:13.849Z | 188.618° SSW | 2025-11-13 15:44:13.849Z | 257.87° W | 37.454° | 2025-11-13 15:49:13.849Z | 333.148° NNW |
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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