DELTA 1 R/B, 6921
Orbit data source: Space-Track
DELTA 1 R/B, 6921 is space debris in SSO originally from a launch on Tue, 06 Nov 1973 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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6921 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
Aerojet
Mission
Spacecraft
Bus & Motor
DSV-3E-5, AJ10-118F
Mass
756 kg wet, 756 kg dry
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 20 hours ago
TLE from 20 hours ago
0 DELTA 1 R/B
1 06921U 73086B 25292.27536943 -.00000022 00000-0 19273-3 0 9991
2 06921 102.3684 315.2325 0014642 348.9310 11.1426 12.37061695360543Epoch: 2025-10-19T06:36Z
TLE epoch observation values (Epoch: 2025-10-19T06:36:31.918Z)
Latitude
-0.00008°
Longitude
-171.89484°
Altitude
1,510.268 km
Speed
7.115 km/s
True Right ascension
21h 00m 55s
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
21:38:55
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,528.244 km
Perigee altitude
1,505.125 km
Semi-major axis
7,894.821 km
Eccentricity
0.00146
Inclination
102.3684°
RAAN
315.2325°
Arg. of periapsis
348.931°
True anomaly
11.17508°
Mean anomaly
11.1426°
Eccentric anomaly
11.15884°
Mean motion
3.09407 °/min
Orbital period
116.35 mins
BSTAR
0.00019273
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Other satellites on launch #86 in the year 1973 (1973-11-06 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 R/B 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. |
|---|---|---|---|---|---|---|---|
| 15 mins | 2025-10-20 14:18:07.063Z | 26.218° NE | 2025-10-20 14:25:07.063Z | 103.748° ESE | 42.307° | 2025-10-20 14:33:07.063Z | 185.94° SSW |
| 12 mins | 2025-10-20 16:13:07.063Z | 353.66° N | 2025-10-20 16:19:07.063Z | 298.982° NW | 27.136° | 2025-10-20 16:25:07.063Z | 250.41° W |
| 10 mins | 2025-10-20 23:34:07.063Z | 88.799° E | 2025-10-20 23:38:07.063Z | 55.432° ENE | 21.504° | 2025-10-20 23:44:07.063Z | 7.5° NNE |
| 16 mins | 2025-10-21 01:24:07.063Z | 161.884° S | 2025-10-21 01:31:07.063Z | 187.501° SSW | 44.641° | 2025-10-21 01:40:07.063Z | 341.158° N |
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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