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: 13 hours ago

TLE from 13 hours ago

0 SCOUT X-4 R/B
1 01739U 65093B   26067.85249618  .00001207  00000-0  30276-3 0  9998
2 01739  59.7026 204.0398 0082129 160.1928 200.2337 14.55123081155723

Epoch: 2026-03-08T20:27Z

TLE epoch observation values (Epoch: 2026-03-08T20:27:35.669Z)

Latitude

-0.00008°

Longitude

90.58729°

Altitude

765.161 km

Speed

7.444 km/s

True Right ascension

13h 36m 09s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow 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

13:25:25

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

766.434 km

Perigee altitude

650.035 km

Semi-major axis

7,086.372 km

Eccentricity

0.00821

Inclination

59.7026°

RAAN

204.0398°

Arg. of periapsis

160.1928°

True anomaly

199.91132°

Mean anomaly

200.2337°

Eccentric anomaly

200.0722°

Mean motion

3.63837 °/min

Orbital period

98.95 mins

BSTAR

0.00030276

Loading maneuver chart data...

Computing Atmospheric mass density...

Loading historical data...

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

EXPLORER 30, 1738

SCOUT X-4 DEB, 2088

SCOUT X-4 DEB, 2013 (Decayed)

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.
5 mins	2026-03-09 09:47:34.088Z	147.155° SSE	2026-03-09 09:49:34.088Z	121.512° SE	16.597°	2026-03-09 09:52:34.088Z	81.852° E
8 mins	2026-03-09 11:28:34.088Z	231.632° WSW	2026-03-09 11:31:34.088Z	282.044° WNW	42.412°	2026-03-09 11:36:34.088Z	34.492° NE
4 mins	2026-03-09 13:13:34.088Z	308.63° NW	2026-03-09 13:15:34.088Z	335.891° NNW	15.11°	2026-03-09 13:17:34.088Z	1.62° NNE
8 mins	2026-03-09 18:24:34.088Z	337.476° NNW	2026-03-09 18:28:34.088Z	47.591° ENE	31.056°	2026-03-09 18:32:34.088Z	109.812° ESE
6 mins	2026-03-09 20:08:34.088Z	282.141° WNW	2026-03-09 20:10:34.088Z	242.992° WSW	26.161°	2026-03-09 20:14:34.088Z	180.874° SSW

Items per page:

1–5 of 5 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: 13 hours ago

TLE from 13 hours ago

TLE epoch observation values (Epoch: 2026-03-08T20:27:35.669Z)

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: 13 hours ago