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
Unknown
Radar Cross Section
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 12 hours ago
TLE from 12 hours ago
0 SCOUT X-4 R/B
1 721U 63053B 26036.96249190 .00000203 00000-0 12259-3 0 9991
2 721 78.5983 240.3246 1088006 310.2776 40.7969 12.55043290833596Epoch: 2026-02-05T23:05Z
TLE epoch observation values (Epoch: 2026-02-05T23:05:59.300Z)
Latitude
0.00001°
Longitude
117.72033°
Altitude
846.645 km
Speed
7.709 km/s
True Right ascension
16h 01m 17s
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
13:29:04
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
2,291.667 km
Perigee altitude
590.225 km
Semi-major axis
7,819.083 km
Eccentricity
0.1088
Inclination
78.5983°
RAAN
240.3246°
Arg. of periapsis
310.2776°
True anomaly
49.83499°
Mean anomaly
40.7969°
Eccentric anomaly
45.22191°
Mean motion
3.13913 °/min
Orbital period
114.68 mins
BSTAR
0.00012259
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Other satellites on launch #53 in the year 1963 (1963-12-19 UTC)
Did you know?
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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2026-02-06 12:38:06.179Z | 108.919° ESE | 2026-02-06 12:42:06.179Z | 75.123° E | 16.563° | 2026-02-06 12:47:06.179Z | 41.709° NE |
| 15 mins | 2026-02-06 14:31:06.179Z | 194.981° SSW | 2026-02-06 14:36:06.179Z | 254.726° W | 44.833° | 2026-02-06 14:46:06.179Z | 12.327° NNE |
| 10 mins | 2026-02-06 16:31:06.179Z | 280.669° WNW | 2026-02-06 16:35:06.179Z | 313.069° NW | 18.216° | 2026-02-06 16:41:06.179Z | 350.492° N |
| 17 mins | 2026-02-06 22:39:06.179Z | 11.096° NNE | 2026-02-06 22:47:06.179Z | 53.656° ENE | 21.43° | 2026-02-06 22:56:06.179Z | 99.194° ESE |
| 23 mins | 2026-02-07 00:34:06.179Z | 350.932° N | 2026-02-07 00:46:06.179Z | 83.242° E | 43.748° | 2026-02-07 00:57:06.179Z | 158.648° S |
| 19 mins | 2026-02-07 02:32:06.179Z | 328.155° NNW | 2026-02-07 02:41:06.179Z | 277.031° WNW | 30.296° | 2026-02-07 02:51:06.179Z | 218.078° SW |
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 descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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