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 URL

https://www.satcat.com/sats-embedded/21317?theme=dark&initialShowStats=false

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ISO8601 Format

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 (50 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: 3 days ago

TLE from 3 days ago

0 DELTA 1 DEB
1 21317U 75052AK  25339.54286644  .00003847  00000-0  64822-2 0  9990
2 21317 100.0998 273.7585 0215362  67.4855 349.5912 13.37650692654565

Epoch: 2025-12-05T13:01Z

TLE epoch observation values (Epoch: 2025-12-05T13:01:43.660Z)

Latitude

55.39417°

Longitude

-11.13707°

Altitude

968.429 km

Speed

7.451 km/s

True Right ascension

17h 15m 30s

True Declination

55° 14' 16"

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

23:27:22

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,276.762 km

Perigee altitude

953.998 km

Semi-major axis

7,493.517 km

Eccentricity

0.02154

Inclination

100.0998°

RAAN

273.7585°

Arg. of periapsis

67.4855°

True anomaly

349.13322°

Mean anomaly

349.5912°

Eccentric anomaly

349.36344°

Mean motion

3.34591 °/min

Orbital period

107.59 mins

BSTAR

0.0064822

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

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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.
10 mins	2025-12-08 07:46:36.035Z	40.386° NE	2025-12-08 07:51:36.035Z	101.06° ESE	28.257°	2025-12-08 07:56:36.035Z	155.87° SSE
10 mins	2025-12-08 09:33:36.035Z	351.524° N	2025-12-08 09:37:36.035Z	290.892° WNW	33.908°	2025-12-08 09:43:36.035Z	225.683° WSW
5 mins	2025-12-08 18:08:36.035Z	79.487° E	2025-12-08 18:10:36.035Z	55.693° ENE	16.639°	2025-12-08 18:13:36.035Z	23.262° NE
10 mins	2025-12-08 19:51:36.035Z	174.078° S	2025-12-08 19:55:36.035Z	235.822° WSW	43.426°	2025-12-08 20:01:36.035Z	340.352° N

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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: 3 days ago

TLE from 3 days ago

TLE epoch observation values (Epoch: 2025-12-05T13:01:43.660Z)

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: 3 days ago