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 (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

Small (<0.1 m²)

Expand to show TLE details & history
Last TLE update: 15 hours ago

TLE from 15 hours ago

0 DELTA 1 DEB
1 21317U 75052AK  26082.08909442  .00001760  00000-0  30014-2 0  9991
2 21317 100.1012  20.5699 0210482 170.4155 312.7235 13.38140828668946

Epoch: 2026-03-23T02:08Z

TLE epoch observation values (Epoch: 2026-03-23T02:08:17.757Z)

Latitude

57.33308°

Longitude

3.95566°

Altitude

1,020.52 km

Speed

7.398 km/s

True Right ascension

14h 26m 27s

True Declination

57° 10' 56"

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

21:51:11

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,271.236 km

Perigee altitude

955.863 km

Semi-major axis

7,491.686 km

Eccentricity

0.02105

Inclination

100.1012°

RAAN

20.5699°

Arg. of periapsis

170.4155°

True anomaly

310.91972°

Mean anomaly

312.7235°

Eccentric anomaly

311.82482°

Mean motion

3.34714 °/min

Orbital period

107.55 mins

BSTAR

0.0030014

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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.
7 mins	2026-03-23 17:51:55.299Z	90.287° ESE	2026-03-23 17:55:55.299Z	55.535° ENE	16.086°	2026-03-23 17:58:55.299Z	27.555° NE
13 mins	2026-03-23 19:34:55.299Z	159.148° S	2026-03-23 19:40:55.299Z	78.574° E	44.833°	2026-03-23 19:47:55.299Z	346.327° N
7 mins	2026-03-23 21:24:55.299Z	243.907° WSW	2026-03-23 21:27:55.299Z	272.28° WNW	16.6°	2026-03-23 21:31:55.299Z	307.072° NW
10 mins	2026-03-24 08:38:55.299Z	20° NNE	2026-03-24 08:43:55.299Z	102.567° ESE	44.024°	2026-03-24 08:48:55.299Z	188.93° SSW
5 mins	2026-03-24 10:26:55.299Z	328.952° NNW	2026-03-24 10:28:55.299Z	306.846° NW	16.577°	2026-03-24 10:31:55.299Z	273.203° WNW

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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: 15 hours ago

TLE from 15 hours ago

TLE epoch observation values (Epoch: 2026-03-23T02:08:17.757Z)

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: 15 hours ago