SCOUT X-4 DEB, 977

Orbit data source: Space-Track

SCOUT X-4 DEB, 977 is space debris in LEO originally from a launch on Sat, 10 Oct 1964 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 URL

https://www.satcat.com/sats-embedded/977?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

977, 1964-064D

Orbit

LEO

Country

Related business

National Aeronautics and Space Administration (NASA) (US)

Manufacturer

APL

Mission

Spacecraft

Bus & Motor

Unknown

Mass

Unknown

Launch date (UTC)

1964-10-10 (61 years ago)

Launch vehicle

Unknown

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown shape, 0.1 m

Radar Cross Section

Small (<0.1 m²)

Expand to show TLE details & history
Last TLE update: 14 hours ago

TLE from 14 hours ago

0 SCOUT X-4 DEB
1   977U 64064D   26047.67343985  .00000243  00000-0  21586-3 0  9991
2   977  80.0389 277.8399 0126407 109.5816 251.9032 13.79047395 72827

Epoch: 2026-02-16T16:09Z

TLE epoch observation values (Epoch: 2026-02-16T16:09:45.203Z)

Latitude

0.00001°

Longitude

-111.26286°

Altitude

999.986 km

Speed

7.337 km/s

True Right ascension

18h 31m 21s

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

08:36:06

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,057.36 km

Perigee altitude

871.727 km

Semi-major axis

7,342.68 km

Eccentricity

0.01264

Inclination

80.0389°

RAAN

277.8399°

Arg. of periapsis

109.5816°

True anomaly

250.53319°

Mean anomaly

251.9032°

Eccentric anomaly

251.21751°

Mean motion

3.44954 °/min

Orbital period

104.36 mins

BSTAR

0.00021586

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Other satellites on launch #64 in the year 1964 (1964-10-10 UTC)

SCOUT X-4 DEB, 976

SCOUT X-4 R/B, 907

EXPLORER 22, 899

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SCOUT X-4 DEB 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.
8 mins	2026-02-17 14:55:40.965Z	131.863° SE	2026-02-17 14:59:40.965Z	84.05° E	21.079°	2026-02-17 15:03:40.965Z	40.506° NE
10 mins	2026-02-17 16:39:40.965Z	214.851° SW	2026-02-17 16:44:40.965Z	289.464° WNW	36.521°	2026-02-17 16:49:40.965Z	357.457° N
7 mins	2026-02-18 01:50:40.965Z	28.349° NE	2026-02-18 01:53:40.965Z	70.78° E	23.312°	2026-02-18 01:57:40.965Z	119.876° SE
9 mins	2026-02-18 03:35:40.965Z	325.4° NNW	2026-02-18 03:39:40.965Z	255.681° W	32.966°	2026-02-18 03:44:40.965Z	198.181° SSW

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Co-orbital & Co-planar RSOs

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

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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

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Check out SCOUT X-4 DEB, 977 on other resources

View SCOUT X-4 DEB, 977 on Heavens-Above

View SCOUT X-4 DEB, 977 on Keep Track

View SCOUT X-4 DEB, 977 on Celestrak

View SCOUT X-4 DEB, 977 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 DEB, 977

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 14 hours ago

TLE from 14 hours ago

TLE epoch observation values (Epoch: 2026-02-16T16:09:45.203Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #64 in the year 1964 (1964-10-10 UTC)

SCOUT X-4 DEB Visibility forecast

Co-orbital & Co-planar RSOs

Check out SCOUT X-4 DEB, 977 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 14 hours ago