DELTA 1 DEB, 21374

Orbit data source: Space-Track

DELTA 1 DEB, 21374 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/21374?theme=dark&initialShowStats=false

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Identifier

21374, 1975-052CU

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: 2 days ago

TLE from 2 days ago

0 DELTA 1 DEB
1 21374U 75052CU  26171.03934123  .00000572  00000-0  64705-3 0  9997
2 21374  99.8743  16.1640 0254716 282.4188 234.3802 13.62132916734162

Epoch: 2026-06-20T00:56Z

TLE epoch observation values (Epoch: 2026-06-20T00:56:39.082Z)

Latitude

25.15385°

Longitude

-81.59392°

Altitude

1,143.883 km

Speed

7.227 km/s

True Right ascension

13h 23m 18s

True Declination

25° 01' 43"

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

15:45:16

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,213.818 km

Perigee altitude

836.666 km

Semi-major axis

7,403.379 km

Eccentricity

0.02547

Inclination

99.8743°

RAAN

16.164°

Arg. of periapsis

282.4188°

True anomaly

232.05135°

Mean anomaly

234.3802°

Eccentric anomaly

233.21143°

Mean motion

3.4072 °/min

Orbital period

105.66 mins

BSTAR

0.00064705

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

DELTA 1 DEB, 21679 (Decayed)

DELTA 1 DEB, 21673 (Decayed)

DELTA 1 DEB, 21322 (Decayed)

DELTA 1 DEB, 21510 (Decayed)

DELTA 1 DEB, 21569 (Decayed)

DELTA 1 DEB, 21274 (Decayed)

DELTA 1 DEB, 21520 (Decayed)

DELTA 1 DEB, 21454 (Decayed)

DELTA 1 DEB, 21671 (Decayed)

DELTA 1 DEB, 21440 (Decayed)

DELTA 1 DEB, 21343 (Decayed)

DELTA 1 DEB, 21349 (Decayed)

DELTA 1 DEB, 21375 (Decayed)

DELTA 1 DEB, 21378 (Decayed)

DELTA 1 DEB, 21468 (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.
10 mins	2026-06-22 12:15:11.746Z	108.493° ESE	2026-06-22 12:20:11.746Z	55.178° ENE	23.767°	2026-06-22 12:25:11.746Z	8.596° NNE
12 mins	2026-06-22 13:58:11.746Z	181.194° SSW	2026-06-22 14:03:11.746Z	247.646° W	41.142°	2026-06-22 14:10:11.746Z	337.893° N
7 mins	2026-06-23 01:06:11.746Z	58.566° ENE	2026-06-23 01:09:11.746Z	86.908° E	17.151°	2026-06-23 01:13:11.746Z	125.473° SE
12 mins	2026-06-23 02:48:11.746Z	12.113° NNE	2026-06-23 02:54:11.746Z	307.408° NW	44.48°	2026-06-23 03:00:11.746Z	202.743° SW
6 mins	2026-06-23 04:35:11.746Z	326.538° NNW	2026-06-23 04:37:11.746Z	307.89° NW	15.514°	2026-06-23 04:41:11.746Z	272.355° WNW

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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, 21374 on other resources

View DELTA 1 DEB, 21374 on Heavens-Above

View DELTA 1 DEB, 21374 on Keep Track

View DELTA 1 DEB, 21374 on Celestrak

View DELTA 1 DEB, 21374 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, 21374

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: 2026-06-20T00:56:39.082Z)

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, 21374 on other resources

Documentation

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