DELTA 1 DEB, 21754

Orbit data source: Space-Track

DELTA 1 DEB, 21754 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/21754?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/21754?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

21754, 1975-052JQ

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 21754U 75052JQ  26240.34439632  .00000104  00000-0  28743-3 0  9998
2 21754 100.0467 163.1725 0075574 148.1556 340.1561 13.35342768706928

Epoch: 2026-08-28T08:15Z

TLE epoch observation values (Epoch: 2026-08-28T08:15:55.842Z)

Latitude

50.97257°

Longitude

-104.82115°

Altitude

1,081.432 km

Speed

7.342 km/s

True Right ascension

23h 42m 55s

True Declination

50° 48' 42"

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

06:43:56

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,180.714 km

Perigee altitude

1,067.32 km

Semi-major axis

7,502.154 km

Eccentricity

0.00756

Inclination

100.0467°

RAAN

163.1725°

Arg. of periapsis

148.1556°

True anomaly

339.85949°

Mean anomaly

340.1561°

Eccentric anomaly

340.00806°

Mean motion

3.34014 °/min

Orbital period

107.78 mins

BSTAR

0.00028743

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.
9 mins	2026-08-30 17:20:06.947Z	102.388° ESE	2026-08-30 17:24:06.947Z	63.291° ENE	20.828°	2026-08-30 17:29:06.947Z	13.425° NNE
11 mins	2026-08-30 19:05:06.947Z	176.399° S	2026-08-30 19:10:06.947Z	259.31° W	43.093°	2026-08-30 19:16:06.947Z	338.844° N
6 mins	2026-08-31 06:25:06.947Z	63.327° ENE	2026-08-31 06:28:06.947Z	94.979° ESE	16.725°	2026-08-31 06:31:06.947Z	125.154° SE
11 mins	2026-08-31 08:10:06.947Z	8.535° NNE	2026-08-31 08:15:06.947Z	256.656° W	43.16°	2026-08-31 08:21:06.947Z	205.589° SW

Items per page:

1–4 of 4 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, 21754 on other resources

View DELTA 1 DEB, 21754 on Heavens-Above

View DELTA 1 DEB, 21754 on Keep Track

View DELTA 1 DEB, 21754 on Celestrak

View DELTA 1 DEB, 21754 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, 21754

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: 2026-08-28T08:15:55.842Z)

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, 21754 on other resources

Documentation

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