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 (50 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: 14 hours ago

TLE from 14 hours ago

0 DELTA 1 DEB
1 12528U 76077DH  26105.90555325 -.00000049  00000-0 -30430-4 0  9992
2 12528 102.5624  91.0846 0078257  43.7837 345.2382 12.27223974163544

Epoch: 2026-04-15T21:43Z

TLE epoch observation values (Epoch: 2026-04-15T21:43:59.800Z)

Latitude

28.08228°

Longitude

-85.77009°

Altitude

1,504.28 km

Speed

7.142 km/s

True Right ascension

05h 37m 09s

True Declination

27° 57' 12"

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

18:06:43

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,620.969 km

Perigee altitude

1,496.744 km

Semi-major axis

7,936.994 km

Eccentricity

0.00783

Inclination

102.5624°

RAAN

91.0846°

Arg. of periapsis

43.7837°

True anomaly

345.00752°

Mean anomaly

345.2382°

Eccentric anomaly

345.12308°

Mean motion

3.06944 °/min

Orbital period

117.29 mins

BSTAR

-0.00003043

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

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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	2026-04-16 11:52:41.525Z	20.222° NNE	2026-04-16 12:01:41.525Z	131.586° SE	44.545°	2026-04-16 12:09:41.525Z	195.488° SSW
11 mins	2026-04-16 13:50:41.525Z	348.309° N	2026-04-16 13:55:41.525Z	305.654° NW	23.306°	2026-04-16 14:01:41.525Z	259.545° W
12 mins	2026-04-16 21:13:41.525Z	104.141° ESE	2026-04-16 21:18:41.525Z	59.152° ENE	26.949°	2026-04-16 21:25:41.525Z	0.492° NNE
15 mins	2026-04-16 23:06:41.525Z	176.568° S	2026-04-16 23:13:41.525Z	263.865° W	41.943°	2026-04-16 23:21:41.525Z	335.637° NNW
5 mins	2026-04-17 11:23:41.525Z	31.075° NE	2026-04-17 11:28:41.525Z	65.497° ENE	36.397°	2026-04-17 11:28:41.525Z	65.497° ENE

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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, 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: 14 hours ago

TLE from 14 hours ago

TLE epoch observation values (Epoch: 2026-04-15T21:43:59.800Z)

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: 14 hours ago