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)

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

TLE from 2 days ago

0 DELTA 1 DEB
1 21677U 75052JD  26240.31911941 -.00000107  00000-0 -22031-3 0  9996
2 21677  99.9281   2.1524 0477853  26.5423  28.1381 12.71925515637189

Epoch: 2026-08-28T07:39Z

TLE epoch observation values (Epoch: 2026-08-28T07:39:31.917Z)

Latitude

56.18484°

Longitude

-104.34312°

Altitude

1,060.827 km

Speed

7.478 km/s

True Right ascension

23h 08m 20s

True Declination

56° 01' 56"

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

11:03:16

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,741.835 km

Perigee altitude

1,001.196 km

Semi-major axis

7,749.652 km

Eccentricity

0.04779

Inclination

99.9281°

RAAN

2.1524°

Arg. of periapsis

26.5423°

True anomaly

30.86268°

Mean anomaly

28.1381°

Eccentric anomaly

29.48571°

Mean motion

3.18141 °/min

Orbital period

113.16 mins

BSTAR

-0.00022031

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

DELTA 1 DEB, 21374

DELTA 1 DEB, 21448

DELTA 1 DEB, 21340 (Decayed)

DELTA 1 DEB, 21464

DELTA 1 DEB, 21508 (Decayed)

DELTA 1 DEB, 37628 (Decayed)

DELTA 1 DEB, 21969

DELTA 1 DEB, 35535

DELTA 1 DEB, 21376 (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.
16 mins	2026-08-30 20:22:44.198Z	28.345° NE	2026-08-30 20:29:44.198Z	97.404° ESE	37.762°	2026-08-30 20:38:44.198Z	174.071° S
13 mins	2026-08-30 22:15:44.198Z	351.409° N	2026-08-30 22:20:44.198Z	300.127° NW	32.317°	2026-08-30 22:28:44.198Z	233.2° WSW
9 mins	2026-08-31 07:15:44.198Z	123.325° SE	2026-08-31 07:19:44.198Z	63.057° ENE	32.485°	2026-08-31 07:24:44.198Z	2.321° NNE
9 mins	2026-08-31 09:07:44.198Z	216.71° SW	2026-08-31 09:11:44.198Z	271.519° WNW	25.771°	2026-08-31 09:16:44.198Z	323.517° NNW
7 mins	2026-08-31 19:06:44.198Z	67.389° ENE	2026-08-31 19:09:44.198Z	89.608° E	14.769°	2026-08-31 19:13:44.198Z	117.187° SE

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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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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: 2 days ago

TLE from 2 days ago

TLE epoch observation values (Epoch: 2026-08-28T07:39:31.917Z)

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: 2 days ago