DELTA 1 DEB, 21444

Orbit data source: Space-Track

DELTA 1 DEB, 21444 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 src="https://www.satcat.com/sats-embedded/21444?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/21444?theme=dark&initialShowStats=false

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Identifier

21444, 1975-052EC

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: 2 days ago

TLE from 2 days ago

0 DELTA 1 DEB
1 21444U 75052EC  26171.25950263  .00000295  00000-0  10034-2 0  9999
2 21444  99.6978  83.8151 0267295  49.8574  99.2778 12.94938093657287

Epoch: 2026-06-20T06:13Z

TLE epoch observation values (Epoch: 2026-06-20T06:13:41.027Z)

Latitude

27.46602°

Longitude

-93.01154°

Altitude

1,323.493 km

Speed

7.18 km/s

True Right ascension

17h 55m 32s

True Declination

27° 20' 09"

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

07:35:47

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,484.041 km

Perigee altitude

1,074.679 km

Semi-major axis

7,657.497 km

Eccentricity

0.02673

Inclination

99.6978°

RAAN

83.8151°

Arg. of periapsis

49.8574°

True anomaly

102.28313°

Mean anomaly

99.2778°

Eccentric anomaly

100.78225°

Mean motion

3.23901 °/min

Orbital period

111.14 mins

BSTAR

0.0010034

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

DELTA 1 DEB, 21390 (Decayed)

DELTA 1 DEB, 35533 (Decayed)

DELTA 1 DEB, 21681 (Decayed)

DELTA 1 DEB, 21328 (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	2026-06-22 06:17:03.312Z	32.326° NE	2026-06-22 06:23:03.312Z	98.854° ESE	34.194°	2026-06-22 06:30:03.312Z	167.136° S
12 mins	2026-06-22 08:07:03.312Z	354.568° N	2026-06-22 08:12:03.312Z	301.748° NW	31.895°	2026-06-22 08:19:03.312Z	231.499° WSW
9 mins	2026-06-22 16:58:03.312Z	110.255° ESE	2026-06-22 17:02:03.312Z	58.142° ENE	26.707°	2026-06-22 17:07:03.312Z	6.221° NNE
11 mins	2026-06-22 18:46:03.312Z	194.592° SSW	2026-06-22 18:51:03.312Z	259.216° W	34.495°	2026-06-22 18:57:03.312Z	331.05° 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, 21444 on other resources

View DELTA 1 DEB, 21444 on Heavens-Above

View DELTA 1 DEB, 21444 on Keep Track

View DELTA 1 DEB, 21444 on Celestrak

View DELTA 1 DEB, 21444 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, 21444

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: 2026-06-20T06:13:41.027Z)

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, 21444 on other resources

Documentation

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