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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<iframe src="https://www.satcat.com/sats-embedded/721?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/721?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

721, 1963-053B

Orbit

LEO

Last TLE update

12 hours ago

Origin

National Aeronautics and Space Administration (NASA) (US)

Manufacturer

ABL

Mission

Spacecraft

Bus & Motor

ALTAIR, Unknown motor

Mass

68 kg wet, 33 kg dry

Launch date (UTC)

1963-12-19 (62 years ago)

Launch vehicle

Unknown

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl, 1.5 m

Radar Cross Section

0.687 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history

TLE from 12 hours ago

0 SCOUT X-4 R/B
1   721U 63053B   25196.36843164  .00000205  00000-0  11908-3 0  9994
2   721  78.6011  83.1325 1088520   3.6077 357.2081 12.54889102808196

Epoch: 2025-07-15T08:50Z

TLE epoch observation values (Epoch: 2025-07-15T08:50:32.493Z)

Latitude

-0.00001°

Longitude

17.03316°

Altitude

596.403 km

Speed

7.962 km/s

True Right ascension

05h 32m 31s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

15.47409°

Longitude

19.74062°

Altitude

612.502 km

Speed

7.946 km/s

Apparent Right ascension

02h 37m 49s

Apparent Declination

-23° 31' 38"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

08:58:34

Azimuth

254.515° W

Elevation

-18.646°

Doppler factor

Orbital elements

Apogee altitude

2,292.779 km

Perigee altitude

590.394 km

Semi-major axis

7,819.724 km

Eccentricity

0.10885

Inclination

78.6011°

RAAN

83.1325°

Arg. of periapsis

3.6077°

True anomaly

Unknown

Mean anomaly

357.2081°

Eccentric anomaly

Unknown

Mean motion

3.13875 °/min

Orbital period

114.7 mins

BSTAR

0.00011908

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Other satellites on launch #53 in the year 1963 (1963-12-19 UTC)

EXPLORER 19 (ADI-1), 714 (Decayed)

SCOUT X-4 DEB, 722 (Decayed)

SCOUT X-4 DEB, 723 (Decayed)

SCOUT X-4 DEB, 724 (Decayed)

SCOUT X-4 DEB, 725 (Decayed)

SCOUT X-4 DEB, 726 (Decayed)

SCOUT X-4 DEB, 732

SCOUT X-4 DEB, 3750

SCOUT X-4 DEB, 17665 (Decayed)

SCOUT X-4 R/B Visibility forecast

Observer location: undefined°, undefined°

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.
18 mins	2025-07-16 02:35:17.843Z	7.71° NNE	2025-07-16 02:43:17.843Z	67.291° ENE	29.801°	2025-07-16 02:53:17.843Z	125.862° SE
21 mins	2025-07-16 04:31:17.843Z	340.816° N	2025-07-16 04:40:17.843Z	256.525° W	43.24°	2025-07-16 04:52:17.843Z	182.931° SSW
10 mins	2025-07-16 06:31:17.843Z	300.644° NW	2025-07-16 06:35:17.843Z	277.495° WNW	15.776°	2025-07-16 06:41:17.843Z	247.332° WSW
9 mins	2025-07-16 17:29:17.843Z	197.053° SSW	2025-07-16 17:32:17.843Z	233.792° WSW	44.082°	2025-07-16 17:38:17.843Z	11.186° NNE

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Check out SCOUT X-4 R/B, 721 on other resources

View SCOUT X-4 R/B, 721 on Heavens-Above

View SCOUT X-4 R/B, 721 on Keep Track

View SCOUT X-4 R/B, 721 on Celestrak

View SCOUT X-4 R/B, 721 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.