DELTA 1 DEB, 21364

Orbit data source: Space-Track

DELTA 1 DEB, 21364 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/21364?theme=dark&initialShowStats=false

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Identifier

21364, 1975-052CJ

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: 14 hours ago

TLE from 14 hours ago

0 DELTA 1 DEB
1 21364U 75052CJ  26168.80100868  .00000503  00000-0  16178-2 0  9992
2 21364  99.6763 120.4526 0250826 291.9693 141.6881 12.97365109657460

Epoch: 2026-06-17T19:13Z

TLE epoch observation values (Epoch: 2026-06-17T19:13:27.149Z)

Latitude

72.60568°

Longitude

-106.75728°

Altitude

1,437.246 km

Speed

7.078 km/s

True Right ascension

05h 50m 38s

True Declination

72° 30' 57"

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

20:16:17

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,461.63 km

Perigee altitude

1,077.97 km

Semi-major axis

7,647.937 km

Eccentricity

0.02508

Inclination

99.6763°

RAAN

120.4526°

Arg. of periapsis

291.9693°

True anomaly

143.42688°

Mean anomaly

141.6881°

Eccentric anomaly

142.56174°

Mean motion

3.24509 °/min

Orbital period

110.94 mins

BSTAR

0.0016178

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

DELTA 1 DEB, 35535

DELTA 1 DEB, 42633

DELTA 1 DEB, 42654

DELTA 1 DEB, 21350 (Decayed)

DELTA 1 DEB, 21519 (Decayed)

DELTA 1 DEB, 21685 (Decayed)

DELTA 1 DEB, 21539 (Decayed)

DELTA 1 DEB, 21505 (Decayed)

DELTA 1 DEB, 21440 (Decayed)

DELTA 1 DEB, 21334 (Decayed)

DELTA 1 DEB, 21337 (Decayed)

DELTA 1 DEB, 21390 (Decayed)

DELTA 1 DEB, 21376 (Decayed)

DELTA 1 DEB, 21562 (Decayed)

DELTA 1 DEB, 26835

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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.
15 mins	2026-06-18 10:14:12.453Z	7.017° NNE	2026-06-18 10:22:12.453Z	282.541° WNW	40.957°	2026-06-18 10:29:12.453Z	215.433° SW
5 mins	2026-06-18 12:07:12.453Z	327.968° NNW	2026-06-18 12:09:12.453Z	313.086° NW	13.262°	2026-06-18 12:12:12.453Z	290.749° WNW
10 mins	2026-06-18 19:04:12.453Z	96.659° ESE	2026-06-18 19:08:12.453Z	60.049° ENE	21.896°	2026-06-18 19:14:12.453Z	9.936° NNE
13 mins	2026-06-18 20:51:12.453Z	171.84° S	2026-06-18 20:57:12.453Z	278.991° WNW	44.145°	2026-06-18 21:04:12.453Z	342.011° N
4 mins	2026-06-18 22:46:12.453Z	264.263° W	2026-06-18 22:47:12.453Z	272.386° WNW	12.504°	2026-06-18 22:50:12.453Z	295.839° NW
12 mins	2026-06-19 08:30:12.453Z	40.59° NE	2026-06-19 08:36:12.453Z	97.488° ESE	27.922°	2026-06-19 08:42:12.453Z	150.899° SSE

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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, 21364 on other resources

View DELTA 1 DEB, 21364 on Heavens-Above

View DELTA 1 DEB, 21364 on Keep Track

View DELTA 1 DEB, 21364 on Celestrak

View DELTA 1 DEB, 21364 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, 21364

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 14 hours ago

TLE from 14 hours ago

TLE epoch observation values (Epoch: 2026-06-17T19:13:27.149Z)

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, 21364 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 14 hours ago