DELTA 1 DEB, 21317

Orbit data source: Space-Track

DELTA 1 DEB, 21317 is space debris in SSO originally from a launch on Thu, 12 Jun 1975 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/21317?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/21317?theme=dark&initialShowStats=false

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Identifier

21317, 1975-052AK

Orbit

SSO

Country

Related business

National Aeronautics and Space Administration (NASA) (US)

Manufacturer

Unknown

Mission

Spacecraft

Bus & Motor

Unknown

Mass

Unknown

Launch date (UTC)

1975-06-12 (51 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

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 2 days ago

TLE from 2 days ago

0 DELTA 1 DEB
1 21317U 75052AK  26170.31132535  .00000750  00000-0  13119-2 0  9991
2 21317 100.0998 108.2480 0214311 320.3350 192.9125 13.38415607680746

Epoch: 2026-06-19T07:28Z

TLE epoch observation values (Epoch: 2026-06-19T07:28:18.510Z)

Latitude

26.86604°

Longitude

-86.22007°

Altitude

1,275.048 km

Speed

7.145 km/s

True Right ascension

19h 33m 35s

True Declination

26° 44' 13"

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

05:52:24

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,273.056 km

Perigee altitude

951.99 km

Semi-major axis

7,490.66 km

Eccentricity

0.02143

Inclination

100.0998°

RAAN

108.248°

Arg. of periapsis

320.335°

True anomaly

192.3777°

Mean anomaly

192.9125°

Eccentric anomaly

192.64372°

Mean motion

3.34783 °/min

Orbital period

107.53 mins

BSTAR

0.0013119

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Other satellites on launch #52 in the year 1975 (1975-06-12 UTC)

DELTA 1 DEB, 21390 (Decayed)

DELTA 1 DEB, 35533 (Decayed)

DELTA 1 DEB, 21451 (Decayed)

DELTA 1 DEB, 21681 (Decayed)

DELTA 1 DEB, 21328 (Decayed)

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DELTA 1 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.
12 mins	2026-06-21 19:47:56.915Z	165.955° S	2026-06-21 19:53:56.915Z	297.002° NW	44.734°	2026-06-21 19:59:56.915Z	343.26° N
7 mins	2026-06-22 07:07:56.915Z	63.967° ENE	2026-06-22 07:10:56.915Z	90.475° ESE	15.985°	2026-06-22 07:14:56.915Z	124.138° SE
13 mins	2026-06-22 08:51:56.915Z	15.48° NNE	2026-06-22 08:57:56.915Z	196.612° SSW	44.804°	2026-06-22 09:04:56.915Z	197.477° SSW
8 mins	2026-06-22 10:38:56.915Z	337.33° NNW	2026-06-22 10:42:56.915Z	300.45° NW	18.604°	2026-06-22 10:46:56.915Z	266.105° W

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

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Check out DELTA 1 DEB, 21317 on other resources

View DELTA 1 DEB, 21317 on Heavens-Above

View DELTA 1 DEB, 21317 on Keep Track

View DELTA 1 DEB, 21317 on Celestrak

View DELTA 1 DEB, 21317 on Gunter's Space Page

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

DELTA 1 DEB, 21317

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 2 days ago

TLE from 2 days ago

TLE epoch observation values (Epoch: 2026-06-19T07:28:18.510Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #52 in the year 1975 (1975-06-12 UTC)

DELTA 1 DEB Visibility forecast

Co-orbital & Co-planar RSOs

Check out DELTA 1 DEB, 21317 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 2 days ago