DELTA 1 DEB, 21677

Orbit data source: Space-Track

DELTA 1 DEB, 21677 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/21677?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

21677, 1975-052JD

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)

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Last TLE update: 1 week ago

TLE from 1 week ago

0 DELTA 1 DEB
1 21677U 75052JD  26161.91459437  .00000094  00000-0  40464-3 0  9994
2 21677  99.9186 293.9112 0478610 195.0510 296.6469 12.71939807627218

Epoch: 2026-06-10T21:57Z

TLE epoch observation values (Epoch: 2026-06-10T21:57:00.953Z)

Latitude

52.29326°

Longitude

-101.60315°

Altitude

1,230.604 km

Speed

7.315 km/s

True Right ascension

08h 27m 40s

True Declination

52° 08' 13"

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

18:51:22

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,742.36 km

Perigee altitude

1,000.554 km

Semi-major axis

7,749.594 km

Eccentricity

0.04786

Inclination

99.9186°

RAAN

293.9112°

Arg. of periapsis

195.051°

True anomaly

291.61645°

Mean anomaly

296.6469°

Eccentric anomaly

294.14457°

Mean motion

3.18145 °/min

Orbital period

113.16 mins

BSTAR

0.00040464

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

DELTA 1 DEB, 21390 (Decayed)

DELTA 1 DEB, 21455 (Decayed)

DELTA 1 DEB, 21454 (Decayed)

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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.
17 mins	2026-06-18 08:40:31.109Z	166.237° S	2026-06-18 08:49:31.109Z	235.172° WSW	44.76°	2026-06-18 08:57:31.109Z	342.931° N
9 mins	2026-06-18 10:37:31.109Z	240.048° WSW	2026-06-18 10:41:31.109Z	267.733° W	17.218°	2026-06-18 10:46:31.109Z	303.8° NW
9 mins	2026-06-18 20:36:31.109Z	43.495° NE	2026-06-18 20:40:31.109Z	87.106° E	24.945°	2026-06-18 20:45:31.109Z	147.303° SSE
11 mins	2026-06-18 22:27:31.109Z	359.105° N	2026-06-18 22:32:31.109Z	299.707° NW	34.752°	2026-06-18 22:38:31.109Z	224.879° SW
14 mins	2026-06-19 07:23:31.109Z	121.923° SE	2026-06-19 07:30:31.109Z	65.483° ENE	31.849°	2026-06-19 07:37:31.109Z	3.218° NNE

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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, 21677 on other resources

View DELTA 1 DEB, 21677 on Heavens-Above

View DELTA 1 DEB, 21677 on Keep Track

View DELTA 1 DEB, 21677 on Celestrak

View DELTA 1 DEB, 21677 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, 21677

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 1 week ago

TLE from 1 week ago

TLE epoch observation values (Epoch: 2026-06-10T21:57:00.953Z)

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, 21677 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 1 week ago