DELTA 1 DEB, 21686

Orbit data source: Space-Track

DELTA 1 DEB, 21686 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/21686?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

21686, 1975-052JN

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: 12 hours ago

TLE from 12 hours ago

0 DELTA 1 DEB
1 21686U 75052JN  26191.03550015  .00003263  00000-0  13325-2 0  9990
2 21686  99.9908 218.7966 0136004 238.2849 120.5008 14.23262108758070

Epoch: 2026-07-10T00:51Z

TLE epoch observation values (Epoch: 2026-07-10T00:51:07.212Z)

Latitude

-0.00005°

Longitude

-81.95229°

Altitude

867.853 km

Speed

7.392 km/s

True Right ascension

14h 35m 11s

True Declination

0° 00' 00"

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

01:14:52

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

909.344 km

Perigee altitude

713.778 km

Semi-major axis

7,189.698 km

Eccentricity

0.0136

Inclination

99.9908°

RAAN

218.7966°

Arg. of periapsis

238.2849°

True anomaly

121.83202°

Mean anomaly

120.5008°

Eccentric anomaly

121.16757°

Mean motion

3.56022 °/min

Orbital period

101.12 mins

BSTAR

0.0013325

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

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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.
9 mins	2026-07-10 14:56:27.983Z	13.805° NNE	2026-07-10 15:00:27.983Z	356.322° N	44.184°	2026-07-10 15:05:27.983Z	198.99° SSW
7 mins	2026-07-11 00:38:27.983Z	102.498° ESE	2026-07-11 00:41:27.983Z	61.883° ENE	22.891°	2026-07-11 00:45:27.983Z	13.604° NNE
9 mins	2026-07-11 02:16:27.983Z	187.93° SSW	2026-07-11 02:20:27.983Z	245.531° WSW	37.243°	2026-07-11 02:25:27.983Z	330.461° 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, 21686 on other resources

View DELTA 1 DEB, 21686 on Heavens-Above

View DELTA 1 DEB, 21686 on Keep Track

View DELTA 1 DEB, 21686 on Celestrak

View DELTA 1 DEB, 21686 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, 21686

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 12 hours ago

TLE from 12 hours ago

TLE epoch observation values (Epoch: 2026-07-10T00:51:07.212Z)

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, 21686 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 12 hours ago