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

21 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 21 hours ago

0 SCOUT X-4 R/B
1 00721U 63053B   25181.85989816  .00000310  00000-0  17790-3 0  9999
2 00721  78.6018  97.4396 1088822  32.7473 333.6542 12.54880752805983

Epoch: 2025-06-30T20:38Z

TLE epoch observation values (Epoch: 2025-06-30T20:38:15.201Z)

Latitude

-0.00005°

Longitude

-131.2874°

Altitude

704.658 km

Speed

7.851 km/s

True Right ascension

06h 29m 45s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-2.24425°

Longitude

-132.60176°

Altitude

708.425 km

Speed

7.847 km/s

Apparent Right ascension

08h 23m 41s

Apparent Declination

-57° 48' 13"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

05:20:01

Azimuth

156.658° SSE

Elevation

-14.991°

Doppler factor

Orbital elements

Apogee altitude

2,293.054 km

Perigee altitude

590.189 km

Semi-major axis

7,819.758 km

Eccentricity

0.10888

Inclination

78.6018°

RAAN

97.4396°

Arg. of periapsis

32.7473°

True anomaly

Unknown

Mean anomaly

333.6542°

Eccentric anomaly

Unknown

Mean motion

3.13872 °/min

Orbital period

114.7 mins

BSTAR

0.0001779

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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.
7 mins	2025-07-01 19:43:23.367Z	213.422° SW	2025-07-01 19:46:23.367Z	279.696° WNW	37.513°	2025-07-01 19:50:23.367Z	1.692° NNE
8 mins	2025-07-02 03:48:23.367Z	40.835° NE	2025-07-02 03:51:23.367Z	64.078° ENE	15.391°	2025-07-02 03:56:23.367Z	95.158° ESE
18 mins	2025-07-02 05:41:23.367Z	352.447° N	2025-07-02 05:48:23.367Z	89.815° E	44.082°	2025-07-02 05:59:23.367Z	162.991° S
13 mins	2025-07-02 07:39:23.367Z	308.496° NW	2025-07-02 07:44:23.367Z	267.338° W	22.966°	2025-07-02 07:52:23.367Z	221.101° SW

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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.