SCOUT X-4 R/B, 1739

Orbit data source: Space-Track

SCOUT X-4 R/B, 1739 is space debris in LEO originally from a launch on Fri, 19 Nov 1965 UTC launched from the Wallops Island (WLPIS). 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.

Loading next visibility...

Iframe embed code

<iframe src="https://www.satcat.com/sats-embedded/1739?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/1739?theme=dark&initialShowStats=false

Optional Secondary NORAD IDs

Max 10 NORAD IDs; Separated by commas

Initial load time (optional)

ISO8601 Format

TLE date request (optional)

ISO8601 Format

Identifier

1739, 1965-093B

Orbit

LEO

Country

Related business

National Aeronautics and Space Administration (NASA) (US)

Manufacturer

ABL

Mission

Spacecraft

Bus & Motor

ALTAIR, Unknown motor

Mass

33 kg wet, 33 kg dry

Launch date (UTC)

1965-11-19 (60 years ago)

Launch vehicle

Unknown

Launch site

Wallops Island (WLPIS)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 19 hours ago

TLE from 19 hours ago

0 SCOUT X-4 R/B
1 01739U 65093B   26129.14019234  .00000246  00000-0  91365-4 0  9997
2 01739  59.7048 351.0241 0073212 218.5512 141.0291 14.55199879164647

Epoch: 2026-05-09T03:21Z

TLE epoch observation values (Epoch: 2026-05-09T03:21:52.618Z)

Latitude

-0.00004°

Longitude

73.59293°

Altitude

750.727 km

Speed

7.459 km/s

True Right ascension

23h 24m 05s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

06:43:26

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

759.864 km

Perigee altitude

656.106 km

Semi-major axis

7,086.122 km

Eccentricity

0.00732

Inclination

59.7048°

RAAN

351.0241°

Arg. of periapsis

218.5512°

True anomaly

141.553°

Mean anomaly

141.0291°

Eccentric anomaly

141.29142°

Mean motion

3.63857 °/min

Orbital period

98.94 mins

BSTAR

0.000091365

Loading maneuver chart data...

Computing Atmospheric mass density...

Loading historical data...

Other satellites on launch #93 in the year 1965 (1965-11-19 UTC)

SCOUT X-4 DEB, 2088

SCOUT X-4 DEB, 2013 (Decayed)

EXPLORER 30, 1738

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.

Click here to try in Sandbox

SCOUT X-4 R/B Visibility forecast

Loading observer location...
Set Observer location

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	2026-05-09 23:38:54.748Z	344.366° N	2026-05-09 23:42:54.748Z	42.022° NE	22.577°	2026-05-09 23:45:54.748Z	85.001° E
8 mins	2026-05-10 01:21:54.748Z	309.688° NW	2026-05-10 01:24:54.748Z	262.363° W	39.936°	2026-05-10 01:29:54.748Z	156.613° SSE
7 mins	2026-05-10 15:46:54.748Z	172.406° S	2026-05-10 15:49:54.748Z	125.297° SE	28.052°	2026-05-10 15:53:54.748Z	63.227° ENE
8 mins	2026-05-10 17:28:54.748Z	253.365° W	2026-05-10 17:32:54.748Z	329.336° NNW	33.277°	2026-05-10 17:36:54.748Z	25.351° NE

Items per page:

1–4 of 4 items

of 1 page

Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

Please sign-in to view Co-orbital & Co-planar RSOs.

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

CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

Authenticating...

Click to sort rows by Secondary header in ascending order	Click to sort rows by Secondary name header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Owner header in ascending order	Click to sort rows by Obj. Type header in ascending order	Click to sort rows by Miss dist. header in ascending order	Click to sort rows by Rel. speed header in ascending order	Click to sort rows by Apr. angle header in ascending order	Click to sort rows by TCA header in descending order

Check out SCOUT X-4 R/B, 1739 on other resources

View SCOUT X-4 R/B, 1739 on Heavens-Above

View SCOUT X-4 R/B, 1739 on Keep Track

View SCOUT X-4 R/B, 1739 on Celestrak

View SCOUT X-4 R/B, 1739 on Gunter's Space Page

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

SCOUT X-4 R/B, 1739

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 19 hours ago

TLE from 19 hours ago

TLE epoch observation values (Epoch: 2026-05-09T03:21:52.618Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #93 in the year 1965 (1965-11-19 UTC)

SCOUT X-4 R/B Visibility forecast

Co-orbital & Co-planar RSOs

Check out SCOUT X-4 R/B, 1739 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 19 hours ago