DELTA 1 DEB, 12528

Orbit data source: Space-Track

DELTA 1 DEB, 12528 is space debris in SSO originally from a launch on Thu, 29 Jul 1976 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/12528?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

12528, 1976-077DH

Orbit

SSO

Country

Related business

National Aeronautics and Space Administration (NASA) (US)

Manufacturer

Unknown

Mission

Spacecraft

Bus & Motor

Unknown

Mass

Unknown

Launch date (UTC)

1976-07-29 (49 years ago)

Launch vehicle

Unknown

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown shape, 0.4 m

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 11 hours ago

TLE from 11 hours ago

0 DELTA 1 DEB
1 12528U 76077DH  25301.53255792  .00000002  00000-0  41758-3 0  9994
2 12528 102.5395 280.7943 0078293 343.4522 136.9812 12.27214206142767

Epoch: 2025-10-28T12:46Z

TLE epoch observation values (Epoch: 2025-10-28T12:46:53.004Z)

Latitude

56.85041°

Longitude

-108.23526°

Altitude

1,616.233 km

Speed

7.047 km/s

True Right ascension

08h 02m 25s

True Declination

56° 42' 35"

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

19:14:16

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,621.039 km

Perigee altitude

1,496.756 km

Semi-major axis

7,937.034 km

Eccentricity

0.00783

Inclination

102.5395°

RAAN

280.7943°

Arg. of periapsis

343.4522°

True anomaly

137.58892°

Mean anomaly

136.9812°

Eccentric anomaly

137.2855°

Mean motion

3.06942 °/min

Orbital period

117.29 mins

BSTAR

0.00041758

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Other satellites on launch #77 in the year 1976 (1976-07-29 UTC)

DELTA 1 DEB, 20309

DELTA 1 DEB, 10651 (Decayed)

DELTA 1 DEB, 40767

DELTA 1 DEB, 10753 (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.
13 mins	2025-10-28 23:57:28.527Z	212.941° SW	2025-10-29 00:03:28.527Z	260.672° W	23.942°	2025-10-29 00:10:28.527Z	317.099° NNW
13 mins	2025-10-29 10:19:28.527Z	47.783° ENE	2025-10-29 10:25:28.527Z	96.901° ESE	24.693°	2025-10-29 10:32:28.527Z	149.421° SSE
16 mins	2025-10-29 12:13:28.527Z	12.374° NNE	2025-10-29 12:20:28.527Z	310.531° NW	43.06°	2025-10-29 12:29:28.527Z	212.943° SW
9 mins	2025-10-29 14:10:28.527Z	341.907° N	2025-10-29 14:14:28.527Z	312.313° NW	16.807°	2025-10-29 14:19:28.527Z	277.767° WNW
14 mins	2025-10-29 21:31:28.527Z	125.045° SE	2025-10-29 21:37:28.527Z	65.697° ENE	35.884°	2025-10-29 21:45:28.527Z	353.224° N
14 mins	2025-10-29 23:26:28.527Z	197.537° SSW	2025-10-29 23:32:28.527Z	255.511° W	33.486°	2025-10-29 23:40:28.527Z	327.155° NNW

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, 12528 on other resources

View DELTA 1 DEB, 12528 on Heavens-Above

View DELTA 1 DEB, 12528 on Keep Track

View DELTA 1 DEB, 12528 on Celestrak

View DELTA 1 DEB, 12528 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, 12528

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 11 hours ago

TLE from 11 hours ago

TLE epoch observation values (Epoch: 2025-10-28T12:46:53.004Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #77 in the year 1976 (1976-07-29 UTC)

DELTA 1 DEB Visibility forecast

Co-orbital & Co-planar RSOs

Check out DELTA 1 DEB, 12528 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 11 hours ago