DELTA 1 DEB, 13529

Orbit data source: Space-Track

DELTA 1 DEB, 13529 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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https://www.satcat.com/sats-embedded/13529?theme=dark&initialShowStats=false

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Identifier

13529, 1976-077EB

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 (50 years ago)

Launch vehicle

Unknown

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown shape, 0.1 m

Radar Cross Section

Medium (>0.1 m² and <1 m²)

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Last TLE update: 18 hours ago

TLE from 18 hours ago

0 DELTA 1 DEB
1 13529U 76077EB  26171.09755390 -.00000058  00000-0 -35695-3 0  9998
2 13529 101.8531 233.7956 0378787 359.2419  28.5464 11.66132022942221

Epoch: 2026-06-20T02:20Z

TLE epoch observation values (Epoch: 2026-06-20T02:20:28.656Z)

Latitude

29.29686°

Longitude

-76.3707°

Altitude

1,568.891 km

Speed

7.202 km/s

True Right ascension

15h 08m 15s

True Declination

29° 09' 55"

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

07:38:26

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

2,144.87 km

Perigee altitude

1,522.754 km

Semi-major axis

8,211.949 km

Eccentricity

0.03788

Inclination

101.8531°

RAAN

233.7956°

Arg. of periapsis

359.2419°

True anomaly

30.70997°

Mean anomaly

28.5464°

Eccentric anomaly

29.61902°

Mean motion

2.91658 °/min

Orbital period

123.43 mins

BSTAR

-0.00035695

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

DELTA 1 DEB, 16999 (Decayed)

DELTA 1 DEB, 20309

DELTA 1 DEB, 40760

DELTA 1 DEB, 10651 (Decayed)

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.
15 mins	2026-06-21 03:00:37.308Z	129.233° SE	2026-06-21 03:07:37.308Z	64.051° ENE	36.688°	2026-06-21 03:15:37.308Z	353.978° N
14 mins	2026-06-21 05:02:37.308Z	202.191° SSW	2026-06-21 05:08:37.308Z	257.235° W	31.804°	2026-06-21 05:16:37.308Z	326.12° NNW
18 mins	2026-06-21 15:54:37.308Z	38.172° NE	2026-06-21 16:02:37.308Z	97.405° ESE	32.398°	2026-06-21 16:12:37.308Z	162.005° S
20 mins	2026-06-21 17:54:37.308Z	9.121° NNE	2026-06-21 18:03:37.308Z	298.267° NW	41.082°	2026-06-21 18:14:37.308Z	220.237° SW
9 mins	2026-06-21 19:58:37.308Z	340.591° N	2026-06-21 20:02:37.308Z	315.933° NNW	16.162°	2026-06-21 20:07:37.308Z	287.267° 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, 13529 on other resources

View DELTA 1 DEB, 13529 on Heavens-Above

View DELTA 1 DEB, 13529 on Keep Track

View DELTA 1 DEB, 13529 on Celestrak

View DELTA 1 DEB, 13529 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, 13529

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 18 hours ago

TLE from 18 hours ago

TLE epoch observation values (Epoch: 2026-06-20T02:20:28.656Z)

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, 13529 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 18 hours ago