DELTA 1 DEB, 21361

Orbit data source: Space-Track

DELTA 1 DEB, 21361 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/21361?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

21361, 1975-052CF

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: 1 week ago

TLE from 1 week ago

0 DELTA 1 DEB
1 21361U 75052CF  26235.61236209  .00001171  00000-0  70516-2 0  9990
2 21361  99.5914  99.6627 0685840  91.9546 299.9031 12.03661046 10728

Epoch: 2026-08-23T14:41Z

TLE epoch observation values (Epoch: 2026-08-23T14:41:48.084Z)

Latitude

24.41602°

Longitude

-97.07124°

Altitude

1,422.036 km

Speed

7.26 km/s

True Right ascension

06h 21m 08s

True Declination

24° 17' 52"

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

11:05:31

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

2,213.412 km

Perigee altitude

1,110.564 km

Semi-major axis

8,040.125 km

Eccentricity

0.06858

Inclination

99.5914°

RAAN

99.6627°

Arg. of periapsis

91.9546°

True anomaly

292.80493°

Mean anomaly

299.9031°

Eccentric anomaly

296.38281°

Mean motion

3.01057 °/min

Orbital period

119.58 mins

BSTAR

0.0070516

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

DELTA 1 DEB, 21374

DELTA 1 DEB, 21448

DELTA 1 DEB, 21340 (Decayed)

DELTA 1 DEB, 21464

DELTA 1 DEB, 21508 (Decayed)

DELTA 1 DEB, 37628 (Decayed)

DELTA 1 DEB, 21969

DELTA 1 DEB, 35535

DELTA 1 DEB, 21376 (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.
13 mins	2026-08-31 02:41:59.651Z	36.774° NE	2026-08-31 02:47:59.651Z	96.313° ESE	29.322°	2026-08-31 02:54:59.651Z	157.273° SSE
12 mins	2026-08-31 04:40:59.651Z	354.695° N	2026-08-31 04:45:59.651Z	290.92° WNW	35.69°	2026-08-31 04:52:59.651Z	225.151° WSW
12 mins	2026-08-31 14:10:59.651Z	140.547° SSE	2026-08-31 14:16:59.651Z	61.93° ENE	38.762°	2026-08-31 14:22:59.651Z	355.62° N
10 mins	2026-08-31 16:09:59.651Z	218.854° SW	2026-08-31 16:14:59.651Z	266.514° W	22.046°	2026-08-31 16:19:59.651Z	315.805° NNW

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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, 21361 on other resources

View DELTA 1 DEB, 21361 on Heavens-Above

View DELTA 1 DEB, 21361 on Keep Track

View DELTA 1 DEB, 21361 on Celestrak

View DELTA 1 DEB, 21361 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, 21361

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 1 week ago

TLE from 1 week ago

TLE epoch observation values (Epoch: 2026-08-23T14:41:48.084Z)

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, 21361 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 1 week ago