SCOUT X-4 R/B, 721
Orbit data source: Space-Track
SCOUT X-4 R/B, 721 is space debris in LEO originally from a launch on Thu, 19 Dec 1963 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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721 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
ABL
Mission
Spacecraft
Bus & Motor
ALTAIR, Unknown motor
Mass
68 kg wet, 33 kg dry
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Cyl, 0.8 m
Radar Cross Section
0.687 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 18 hours ago
TLE from 18 hours ago
0 SCOUT X-4 R/B
1 00721U 63053B 25260.78220315 .00000402 00000-0 23936-3 0 9992
2 00721 78.6064 19.5785 1087971 234.0687 115.4648 12.54915028815887Epoch: 2025-09-17T18:46Z
TLE epoch observation values (Epoch: 2025-09-17T18:46:22.352Z)
Latitude
0.00004°
Longitude
101.03216°
Altitude
1,882.651 km
Speed
6.751 km/s
True Right ascension
01h 18m 18s
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
05:58:46
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
2,292.23 km
Perigee altitude
590.727 km
Semi-major axis
7,819.616 km
Eccentricity
0.1088
Inclination
78.6064°
RAAN
19.5785°
Arg. of periapsis
234.0687°
True anomaly
126.03794°
Mean anomaly
115.4648°
Eccentric anomaly
120.81821°
Mean motion
3.13881 °/min
Orbital period
114.69 mins
BSTAR
0.00023936
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Other satellites on launch #53 in the year 1963 (1963-12-19 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.SCOUT X-4 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 | 2025-09-18 18:25:24.617Z | 359.287° N | 2025-09-18 18:34:24.617Z | 67.408° ENE | 30.808° | 2025-09-18 18:40:24.617Z | 125.291° SE |
| 14 mins | 2025-09-18 20:22:24.617Z | 336.56° NNW | 2025-09-18 20:30:24.617Z | 274.527° WNW | 36.197° | 2025-09-18 20:36:24.617Z | 201.813° SSW |
| 19 mins | 2025-09-19 07:14:24.617Z | 136.403° SSE | 2025-09-19 07:23:24.617Z | 80.565° E | 29.546° | 2025-09-19 07:33:24.617Z | 28.655° NE |
| 24 mins | 2025-09-19 09:07:24.617Z | 200.149° SSW | 2025-09-19 09:18:24.617Z | 286.525° WNW | 44.049° | 2025-09-19 09:31:24.617Z | 10.682° NNE |
| 17 mins | 2025-09-19 11:09:24.617Z | 265.095° W | 2025-09-19 11:17:24.617Z | 308.109° NW | 22.011° | 2025-09-19 11:26:24.617Z | 354.279° 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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