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

Small (<0.1 m²)

Expand to show TLE details & history
Last TLE update: 19 hours ago

TLE from 19 hours ago

0 DELTA 1 DEB
1 21686U 75052JN  26078.51090047  .00004020  00000-0  16646-2 0  9992
2 21686  99.9947  91.2689 0141083 191.1666 168.6367 14.22023108742074

Epoch: 2026-03-19T12:15Z

TLE epoch observation values (Epoch: 2026-03-19T12:15:41.800Z)

Latitude

0.00002°

Longitude

90.28546°

Altitude

921.009 km

Speed

7.34 km/s

True Right ascension

06h 05m 04s

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

11:56:37

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

917.233 km

Perigee altitude

714.247 km

Semi-major axis

7,193.877 km

Eccentricity

0.01411

Inclination

99.9947°

RAAN

91.2689°

Arg. of periapsis

191.1666°

True anomaly

168.94982°

Mean anomaly

168.6367°

Eccentric anomaly

168.79379°

Mean motion

3.55712 °/min

Orbital period

101.21 mins

BSTAR

0.0016646

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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.
5 mins	2026-03-20 12:31:46.247Z	59.134° ENE	2026-03-20 12:34:46.247Z	98.043° ESE	15.235°	2026-03-20 12:36:46.247Z	124.229° SE
7 mins	2026-03-20 14:11:46.247Z	357.938° N	2026-03-20 14:14:46.247Z	287.084° WNW	39.032°	2026-03-20 14:18:46.247Z	215.789° SW
8 mins	2026-03-20 23:52:46.247Z	118.695° SE	2026-03-20 23:55:46.247Z	72.458° E	30.316°	2026-03-21 00:00:46.247Z	3.961° NNE
9 mins	2026-03-21 01:31:46.247Z	204.99° SW	2026-03-21 01:35:46.247Z	260.058° W	28.533°	2026-03-21 01:40:46.247Z	324.025° 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: 19 hours ago

TLE from 19 hours ago

TLE epoch observation values (Epoch: 2026-03-19T12:15:41.800Z)

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: 19 hours ago