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.

Loading next visibility...

Iframe embed code

<iframe src="https://www.satcat.com/sats-embedded/21364?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/21364?theme=dark&initialShowStats=false

Optional Secondary NORAD IDs

Max 10 NORAD IDs; Separated by commas

Initial load time (optional)

ISO8601 Format

TLE date request (optional)

ISO8601 Format

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

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 21364U 75052CJ  26082.11854492  .00000925  00000-0  28634-2 0  9998
2 21364  99.6708  43.6402 0252243 127.7029 296.3748 12.97313056646228

Epoch: 2026-03-23T02:50Z

TLE epoch observation values (Epoch: 2026-03-23T02:50:42.281Z)

Latitude

60.08257°

Longitude

163.21302°

Altitude

1,200.983 km

Speed

7.298 km/s

True Right ascension

01h 46m 01s

True Declination

59° 56' 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

23:33:13

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,462.923 km

Perigee altitude

1,077.085 km

Semi-major axis

7,648.141 km

Eccentricity

0.02522

Inclination

99.6708°

RAAN

43.6402°

Arg. of periapsis

127.7029°

True anomaly

293.74934°

Mean anomaly

296.3748°

Eccentric anomaly

295.06566°

Mean motion

3.24496 °/min

Orbital period

110.94 mins

BSTAR

0.0028634

Loading maneuver chart data...

Computing Atmospheric mass density...

Loading historical data...

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

Did you know?

You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.

Click here to try in Sandbox

DELTA 1 DEB Visibility forecast

Loading observer location...
Set Observer location

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.
7 mins	2026-03-23 19:22:39.746Z	89.143° E	2026-03-23 19:26:39.746Z	54.829° ENE	15.796°	2026-03-23 19:29:39.746Z	27.542° NE
13 mins	2026-03-23 21:08:39.746Z	160.201° S	2026-03-23 21:14:39.746Z	121.489° SE	44.733°	2026-03-23 21:21:39.746Z	346.74° N
7 mins	2026-03-23 23:01:39.746Z	240.486° WSW	2026-03-23 23:04:39.746Z	266.536° W	16.102°	2026-03-23 23:08:39.746Z	302.095° NW
6 mins	2026-03-24 08:48:39.746Z	63.055° ENE	2026-03-24 08:51:39.746Z	94.783° ESE	16.89°	2026-03-24 08:54:39.746Z	124.789° SE
11 mins	2026-03-24 10:36:39.746Z	7.026° NNE	2026-03-24 10:41:39.746Z	268.146° W	42.882°	2026-03-24 10:47:39.746Z	206.943° SW

Items per page:

1–5 of 5 items

of 1 page

Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

Please sign-in to view Co-orbital & Co-planar RSOs.

Click to sort rows by RSO header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Type header in ascending order	Click to sort rows by Inclination Δ header in ascending order	Click to sort rows by RAAN Δ header in ascending order	Click to sort rows by Coplanar Angle header in ascending order	Click to sort rows by SMA Δ header in ascending order	Click to sort rows by Orbital period header in ascending order	Click to sort rows by <5km Md TCA header in descending order

CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

Authenticating...

Click to sort rows by Secondary header in ascending order	Click to sort rows by Secondary name header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Owner header in ascending order	Click to sort rows by Obj. Type header in ascending order	Click to sort rows by Miss dist. header in ascending order	Click to sort rows by Rel. speed header in ascending order	Click to sort rows by Apr. angle header in ascending order	Click to sort rows by TCA header in descending order

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: 16 hours ago

TLE from 16 hours ago

TLE epoch observation values (Epoch: 2026-03-23T02:50:42.281Z)

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: 16 hours ago