DELTA 1 DEB, 21279

Orbit data source: Space-Track

DELTA 1 DEB, 21279 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/21279?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

21279, 1975-052Q

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)

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Last TLE update: 2 days ago

TLE from 2 days ago

0 DELTA 1 DEB
1 21279U 75052Q   26134.39698778  .00000054  00000-0  13315-3 0  9998
2 21279  99.4477 295.6209 0056048 160.6030 263.7555 13.57591953734460

Epoch: 2026-05-14T09:31Z

TLE epoch observation values (Epoch: 2026-05-14T09:31:39.744Z)

Latitude

62.27925°

Longitude

-97.80149°

Altitude

1,059.818 km

Speed

7.326 km/s

True Right ascension

18h 29m 01s

True Declination

62° 08' 35"

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

15:59:29

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,083.322 km

Perigee altitude

1,000.148 km

Semi-major axis

7,419.872 km

Eccentricity

0.0056

Inclination

99.4477°

RAAN

295.6209°

Arg. of periapsis

160.603°

True anomaly

263.11755°

Mean anomaly

263.7555°

Eccentric anomaly

263.43647°

Mean motion

3.39585 °/min

Orbital period

106.01 mins

BSTAR

0.00013315

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

DELTA 1 DEB, 21378 (Decayed)

DELTA 1 DEB, 21456 (Decayed)

DELTA 1 DEB, 21506

DELTA 1 DEB, 21675 (Decayed)

DELTA 1 DEB, 21440 (Decayed)

DELTA 1 DEB, 26845

DELTA 1 DEB, 21563 (Decayed)

DELTA 1 DEB, 42656

DELTA 1 DEB, 21438

DELTA 1 DEB, 21391 (Decayed)

DELTA 1 DEB, 21516

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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.
8 mins	2026-05-16 09:07:50.903Z	102.643° ESE	2026-05-16 09:11:50.903Z	63.688° ENE	18.956°	2026-05-16 09:15:50.903Z	21.153° NNE
11 mins	2026-05-16 10:50:50.903Z	173.941° S	2026-05-16 10:55:50.903Z	236.268° WSW	43.402°	2026-05-16 11:01:50.903Z	340.396° N
10 mins	2026-05-16 23:43:50.903Z	13.532° NNE	2026-05-16 23:47:50.903Z	357.059° N	44.637°	2026-05-16 23:53:50.903Z	197.677° SSW
5 mins	2026-05-17 01:29:50.903Z	324.596° NNW	2026-05-17 01:31:50.903Z	304.054° NW	13.919°	2026-05-17 01:34:50.903Z	274.418° 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, 21279 on other resources

View DELTA 1 DEB, 21279 on Heavens-Above

View DELTA 1 DEB, 21279 on Keep Track

View DELTA 1 DEB, 21279 on Celestrak

View DELTA 1 DEB, 21279 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, 21279

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: 2026-05-14T09:31:39.744Z)

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, 21279 on other resources

Documentation

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