DELTA 1 DEB, 21268

Orbit data source: Space-Track

DELTA 1 DEB, 21268 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/21268?theme=dark&initialShowStats=false

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Identifier

21268, 1975-052D

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, 0.3 m

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 15 hours ago

TLE from 15 hours ago

0 DELTA 1 DEB
1 21268U 75052D   25360.12623152  .00000410  00000-0  12358-2 0  9992
2 21268  99.8526  47.6915 0198438 336.2497  46.7974 13.06679398651189

Epoch: 2025-12-26T03:01Z

TLE epoch observation values (Epoch: 2025-12-26T03:01:46.403Z)

Latitude

24.37041°

Longitude

-97.1125°

Altitude

1,136.985 km

Speed

7.335 km/s

True Right ascension

02h 52m 48s

True Declination

24° 14' 53"

Sunlit

Object was in full shadow 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

16:54:52

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,384.439 km

Perigee altitude

1,082.355 km

Semi-major axis

7,611.534 km

Eccentricity

0.01984

Inclination

99.8526°

RAAN

47.6915°

Arg. of periapsis

336.2497°

True anomaly

48.48332°

Mean anomaly

46.7974°

Eccentric anomaly

47.6375°

Mean motion

3.2684 °/min

Orbital period

110.15 mins

BSTAR

0.0012358

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

DELTA 1 DEB, 21328 (Decayed)

DELTA 1 DEB, 21318 (Decayed)

DELTA 1 DEB, 21449 (Decayed)

DELTA 1 DEB, 21517 (Decayed)

DELTA 1 DEB, 26828

DELTA 1 DEB, 21510 (Decayed)

DELTA 1 DEB, 21381 (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	2025-12-26 18:11:28.107Z	344.529° N	2025-12-26 18:16:28.107Z	303.928° NW	18.374°	2025-12-26 18:21:28.107Z	264.53° W
4 mins	2025-12-27 01:11:28.107Z	64.663° ENE	2025-12-27 01:13:28.107Z	46.931° ENE	12.659°	2025-12-27 01:15:28.107Z	30.102° NE
12 mins	2025-12-27 02:54:28.107Z	150.851° SSE	2025-12-27 03:00:28.107Z	54.501° ENE	42.929°	2025-12-27 03:06:28.107Z	350.808° N
7 mins	2025-12-27 04:46:28.107Z	238.711° WSW	2025-12-27 04:49:28.107Z	270.2° WNW	18.942°	2025-12-27 04:53:28.107Z	308.338° NW
8 mins	2025-12-27 14:29:28.107Z	59.816° ENE	2025-12-27 14:33:28.107Z	92.754° ESE	16.089°	2025-12-27 14:37:28.107Z	123.815° SE
15 mins	2025-12-27 16:15:28.107Z	15.647° NNE	2025-12-27 16:22:28.107Z	131.403° SE	44.97°	2025-12-27 16:30:28.107Z	196.068° SSW

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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, 21268 on other resources

View DELTA 1 DEB, 21268 on Heavens-Above

View DELTA 1 DEB, 21268 on Keep Track

View DELTA 1 DEB, 21268 on Celestrak

View DELTA 1 DEB, 21268 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, 21268

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 15 hours ago

TLE from 15 hours ago

TLE epoch observation values (Epoch: 2025-12-26T03:01:46.403Z)

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, 21268 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 15 hours ago