DELTA 1 DEB, 21437

Orbit data source: Space-Track

DELTA 1 DEB, 21437 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/21437?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

21437, 1975-052DV

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: 11 hours ago

TLE from 11 hours ago

0 DELTA 1 DEB
1 21437U 75052DV  26021.47995671  .00000316  00000-0  68488-3 0  9992
2 21437 100.2020 282.7142 0056449  80.2081 103.4070 13.37438960692801

Epoch: 2026-01-21T11:31Z

TLE epoch observation values (Epoch: 2026-01-21T11:31:08.259Z)

Latitude

-4.31155°

Longitude

168.30946°

Altitude

1,132.288 km

Speed

7.282 km/s

True Right ascension

06h 47m 45s

True Declination

-4° 17' 14"

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

23:27:03

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,158.484 km

Perigee altitude

1,073.874 km

Semi-major axis

7,494.316 km

Eccentricity

0.00564

Inclination

100.202°

RAAN

282.7142°

Arg. of periapsis

80.2081°

True anomaly

104.03519°

Mean anomaly

103.407°

Eccentric anomaly

103.7212°

Mean motion

3.34538 °/min

Orbital period

107.61 mins

BSTAR

0.00068488

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

DELTA 1 DEB, 7965 (Decayed)

DELTA 1 DEB, 21340 (Decayed)

DELTA 1 DEB, 21335 (Decayed)

DELTA 1 DEB, 21683 (Decayed)

DELTA 1 DEB, 21430 (Decayed)

DELTA 1 DEB, 21391 (Decayed)

DELTA 1 DEB, 21681 (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.
11 mins	2026-01-22 05:10:22.079Z	39.343° NE	2026-01-22 05:15:22.079Z	91.208° ESE	25.885°	2026-01-22 05:21:22.079Z	154.59° SSE
10 mins	2026-01-22 06:57:22.079Z	357.663° N	2026-01-22 07:02:22.079Z	280.301° WNW	36.189°	2026-01-22 07:07:22.079Z	224.031° SW
7 mins	2026-01-22 15:31:22.079Z	87.725° E	2026-01-22 15:34:22.079Z	57.034° ENE	17.162°	2026-01-22 15:38:22.079Z	18.336° NNE
11 mins	2026-01-22 17:14:22.079Z	167.317° S	2026-01-22 17:19:22.079Z	213.887° SW	44.525°	2026-01-22 17:25:22.079Z	342.268° 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, 21437 on other resources

View DELTA 1 DEB, 21437 on Heavens-Above

View DELTA 1 DEB, 21437 on Keep Track

View DELTA 1 DEB, 21437 on Celestrak

View DELTA 1 DEB, 21437 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, 21437

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 11 hours ago

TLE from 11 hours ago

TLE epoch observation values (Epoch: 2026-01-21T11:31:08.259Z)

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, 21437 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 11 hours ago