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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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: 4 days ago
TLE from 4 days ago
0 DELTA 1 DEB
1 10221U 77065AY 26259.18169003 .00005686 00000-0 46095-3 0 9995
2 10221 29.0263 75.2809 0283251 256.1777 100.7146 14.71237996486069Epoch: 2026-09-16T04:21Z
TLE epoch observation values (Epoch: 2026-09-16T04:21:38.018Z)
Latitude
-0.00002°
Longitude
14.7355°
Altitude
697.905 km
Speed
7.487 km/s
True Right ascension
05h 01m 07s
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
02:39:21
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
860.568 km
Perigee altitude
461.79 km
Semi-major axis
7,039.316 km
Eccentricity
0.02833
Inclination
29.0263°
RAAN
75.2809°
Arg. of periapsis
256.1777°
True anomaly
103.88135°
Mean anomaly
100.7146°
Eccentric anomaly
102.30025°
Mean motion
3.67492 °/min
Orbital period
97.96 mins
BSTAR
0.00046095
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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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2026-09-20 14:27:38.322Z | 205.627° SW | 2026-09-20 14:30:38.322Z | 167.609° S | 20.506° | 2026-09-20 14:34:38.322Z | 120.839° SE |
| 8 mins | 2026-09-20 16:10:38.322Z | 227.732° WSW | 2026-09-20 16:14:38.322Z | 171.453° S | 27.26° | 2026-09-20 16:18:38.322Z | 125.897° SE |
| 7 mins | 2026-09-20 17:54:38.322Z | 230.922° WSW | 2026-09-20 17:57:38.322Z | 193.632° SSW | 21.996° | 2026-09-20 18:01:38.322Z | 148.32° SSE |
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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