DELTA 1 DEB, 10221
Orbit data source: Space-Track
DELTA 1 DEB, 10221 is space debris in LEO originally from a launch on Thu, 14 Jul 1977 UTC launched from the Air Force Eastern Test Range (AFETR). 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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10221 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: 15 hours ago
TLE from 15 hours ago
0 DELTA 1 DEB
1 10221U 77065AY 25297.67467678 .00020124 00000-0 18508-2 0 9990
2 10221 29.0296 291.4414 0311236 243.5769 113.2564 14.63281787438041Epoch: 2025-10-24T16:11Z
TLE epoch observation values (Epoch: 2025-10-24T16:11:32.073Z)
Latitude
-0.00004°
Longitude
15.24151°
Altitude
773.357 km
Speed
7.421 km/s
True Right ascension
19h 25m 45s
True Declination
0° 00' 00"
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
02:03:26
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
906.525 km
Perigee altitude
466.762 km
Semi-major axis
7,064.78 km
Eccentricity
0.03112
Inclination
29.0296°
RAAN
291.4414°
Arg. of periapsis
243.5769°
True anomaly
116.48181°
Mean anomaly
113.2564°
Eccentric anomaly
114.87422°
Mean motion
3.65507 °/min
Orbital period
98.49 mins
BSTAR
0.0018508
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Other satellites on launch #65 in the year 1977 (1977-07-14 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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2025-10-25 07:22:14.951Z | 239.397° WSW | 2025-10-25 07:26:14.951Z | 193.907° SSW | 21.65° | 2025-10-25 07:30:14.951Z | 145.937° SSE |
| 5 mins | 2025-10-26 02:49:14.951Z | 178.874° S | 2025-10-26 02:51:14.951Z | 156.074° SSE | 16.082° | 2025-10-26 02:54:14.951Z | 125.442° SE |
| 8 mins | 2025-10-26 04:31:14.951Z | 219.607° SW | 2025-10-26 04:35:14.951Z | 168.28° S | 24.775° | 2025-10-26 04:39:14.951Z | 122.029° SE |
| 8 mins | 2025-10-26 06:15:14.951Z | 234.936° WSW | 2025-10-26 06:19:14.951Z | 184.773° SSW | 24.681° | 2025-10-26 06:23:14.951Z | 136.596° SSE |
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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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 ascending order |
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