DELTA 1 DEB, 21459

Orbit data source: Space-Track

DELTA 1 DEB, 21459 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/21459?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

21459, 1975-052ET

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, 0.2 m

Radar Cross Section

Small (<0.1 m²)

Expand to show TLE details & history
Last TLE update: 16 hours ago

TLE from 16 hours ago

0 DELTA 1 DEB
1 21459U 75052ET  25350.28212799  .00000180  00000-0  39739-3 0  9998
2 21459  99.6650 170.3639 0052169 195.0635 346.7849 13.41339954692560

Epoch: 2025-12-16T06:46Z

TLE epoch observation values (Epoch: 2025-12-16T06:46:15.858Z)

Latitude

-1.80886°

Longitude

163.32267°

Altitude

1,069.322 km

Speed

7.336 km/s

True Right ascension

23h 20m 13s

True Declination

-1° 47' 55"

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

21:38:31

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,140.624 km

Perigee altitude

1,062.582 km

Semi-major axis

7,479.74 km

Eccentricity

0.00522

Inclination

99.665°

RAAN

170.3639°

Arg. of periapsis

195.0635°

True anomaly

346.64736°

Mean anomaly

346.7849°

Eccentric anomaly

346.71622°

Mean motion

3.35516 °/min

Orbital period

107.3 mins

BSTAR

0.00039739

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

DELTA 1 DEB, 21431 (Decayed)

DELTA 1 DEB, 7965 (Decayed)

DELTA 1 DEB, 35533 (Decayed)

DELTA 1 DEB, 21495 (Decayed)

DELTA 1 DEB, 21539 (Decayed)

DELTA 1 DEB, 37627 (Decayed)

DELTA 1 DEB, 21521 (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	2025-12-17 00:22:40.104Z	30.749° NE	2025-12-17 00:28:40.104Z	105.041° ESE	33.531°	2025-12-17 00:33:40.104Z	164.621° S
10 mins	2025-12-17 02:09:40.104Z	349.494° N	2025-12-17 02:13:40.104Z	302.252° NW	28.836°	2025-12-17 02:19:40.104Z	234.933° WSW
9 mins	2025-12-17 10:40:40.104Z	102.211° ESE	2025-12-17 10:44:40.104Z	59.758° ENE	22.217°	2025-12-17 10:49:40.104Z	11.229° NNE
11 mins	2025-12-17 12:24:40.104Z	179.454° S	2025-12-17 12:29:40.104Z	247.93° W	42.033°	2025-12-17 12:35:40.104Z	337.287° 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, 21459 on other resources

View DELTA 1 DEB, 21459 on Heavens-Above

View DELTA 1 DEB, 21459 on Keep Track

View DELTA 1 DEB, 21459 on Celestrak

View DELTA 1 DEB, 21459 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, 21459

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 16 hours ago

TLE from 16 hours ago

TLE epoch observation values (Epoch: 2025-12-16T06:46:15.858Z)

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, 21459 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 16 hours ago