DELTA 1 DEB, 12529

Orbit data source: Space-Track

DELTA 1 DEB, 12529 is space debris in LEO 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/12529?theme=dark&initialShowStats=false

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Identifier

12529, 1976-077DJ

Orbit

LEO

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)

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Last TLE update: 2 days ago

TLE from 2 days ago

0 DELTA 1 DEB
1 12529U 76077DJ  26020.88596671  .00000739  00000-0  14358-1 0  9997
2 12529 103.5468 156.5592 0659834 350.1902   8.6728 11.25919640815391

Epoch: 2026-01-20T21:15Z

TLE epoch observation values (Epoch: 2026-01-20T21:15:47.523Z)

Latitude

-0.00007°

Longitude

77.3498°

Altitude

1,485.292 km

Speed

7.349 km/s

True Right ascension

10h 26m 14s

True Declination

0° 00' 00"

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

11:38:24

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

2,583.085 km

Perigee altitude

1,473.702 km

Semi-major axis

8,406.53 km

Eccentricity

0.06598

Inclination

103.5468°

RAAN

156.5592°

Arg. of periapsis

350.1902°

True anomaly

9.91367°

Mean anomaly

8.6728°

Eccentric anomaly

9.28262°

Mean motion

2.8159 °/min

Orbital period

127.85 mins

BSTAR

0.014358

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

DELTA 1 DEB, 19858 (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.
24 mins	2026-01-22 20:48:43.197Z	30.656° NE	2026-01-22 21:00:43.197Z	105.147° ESE	36.638°	2026-01-22 21:12:43.197Z	171.702° S
23 mins	2026-01-22 22:54:43.197Z	10.662° NNE	2026-01-22 23:04:43.197Z	304.056° NW	40.317°	2026-01-22 23:17:43.197Z	226.705° WSW
13 mins	2026-01-23 01:01:43.197Z	350.774° N	2026-01-23 01:06:43.197Z	323.682° NNW	17.745°	2026-01-23 01:14:43.197Z	285.058° WNW
15 mins	2026-01-23 06:59:43.197Z	104.573° ESE	2026-01-23 07:05:43.197Z	55.526° ENE	28.339°	2026-01-23 07:14:43.197Z	353.612° N
16 mins	2026-01-23 09:03:43.197Z	177.994° S	2026-01-23 09:10:43.197Z	263.642° W	41.606°	2026-01-23 09:19:43.197Z	334.542° NNW

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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, 12529 on other resources

View DELTA 1 DEB, 12529 on Heavens-Above

View DELTA 1 DEB, 12529 on Keep Track

View DELTA 1 DEB, 12529 on Celestrak

View DELTA 1 DEB, 12529 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, 12529

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: 2026-01-20T21:15:47.523Z)

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, 12529 on other resources

Documentation

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