DELTA 1 DEB, 21493

Orbit data source: Space-Track

DELTA 1 DEB, 21493 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/21493?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

21493, 1975-052FN

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: 3 months ago

TLE from 3 months ago

0 DELTA 1 DEB
1 21493U 75052FN  25344.86209041 -.00006174  00000-0 -24110-1 0  9995
2 21493  99.6936 121.2352 0740536  51.0063  94.5783 12.21704990529400

Epoch: 2025-12-10T20:41Z

TLE epoch observation values (Epoch: 2025-12-10T20:41:24.611Z)

Latitude

25.67797°

Longitude

-84.25532°

Altitude

1,677.942 km

Speed

6.998 km/s

True Right ascension

20h 23m 41s

True Declination

25° 33' 33"

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

10:07:28

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

2,172.098 km

Perigee altitude

993.059 km

Semi-major axis

7,960.715 km

Eccentricity

0.07405

Inclination

99.6936°

RAAN

121.2352°

Arg. of periapsis

51.0063°

True anomaly

102.94528°

Mean anomaly

94.5783°

Eccentric anomaly

98.77163°

Mean motion

3.05573 °/min

Orbital period

117.81 mins

BSTAR

-0.02411

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

DELTA 1 DEB, 21520 (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.
20 mins	2026-03-06 06:42:57.471Z	126.667° SE	2026-03-06 06:52:57.471Z	56.789° ENE	35.696°	2026-03-06 07:02:57.471Z	356.114° N
20 mins	2026-03-06 08:38:57.471Z	187.529° SSW	2026-03-06 08:47:57.471Z	261.346° W	40.258°	2026-03-06 08:58:57.471Z	337.56° N
4 mins	2026-03-06 10:44:57.471Z	274.468° WNW	2026-03-06 10:45:57.471Z	279.713° WNW	11.346°	2026-03-06 10:48:57.471Z	295.138° NW
11 mins	2026-03-06 19:09:57.471Z	46.964° ENE	2026-03-06 19:14:57.471Z	80.882° E	19.255°	2026-03-06 19:20:57.471Z	126.814° SE
17 mins	2026-03-06 21:03:57.471Z	13.46° NNE	2026-03-06 21:12:57.471Z	273.8° WNW	44.892°	2026-03-06 21:20:57.471Z	200.124° SSW
12 mins	2026-03-06 23:00:57.471Z	350.191° N	2026-03-06 23:06:57.471Z	311.628° NW	21.028°	2026-03-06 23:12:57.471Z	268.076° W

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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, 21493 on other resources

View DELTA 1 DEB, 21493 on Heavens-Above

View DELTA 1 DEB, 21493 on Keep Track

View DELTA 1 DEB, 21493 on Celestrak

View DELTA 1 DEB, 21493 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, 21493

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 3 months ago

TLE from 3 months ago

TLE epoch observation values (Epoch: 2025-12-10T20:41:24.611Z)

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, 21493 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 3 months ago