DELTA 1 DEB, 13531

Orbit data source: Space-Track

DELTA 1 DEB, 13531 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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https://www.satcat.com/sats-embedded/13531?theme=dark&initialShowStats=false

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Identifier

13531, 1976-077ED

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, 0.1 m

Radar Cross Section

Small (<0.1 m²)

Expand to show TLE details & history
Last TLE update: 23 hours ago

TLE from 23 hours ago

0 DELTA 1 DEB
1 13531U 76077ED  25348.88880125  .00000028  00000-0  70430-3 0  9999
2 13531 102.7300 321.8784 0140629 124.1855 295.0122 12.17142373933635

Epoch: 2025-12-14T21:19Z

TLE epoch observation values (Epoch: 2025-12-14T21:19:52.427Z)

Latitude

55.65496°

Longitude

-101.09377°

Altitude

1,567.843 km

Speed

7.11 km/s

True Right ascension

20h 10m 40s

True Declination

55° 30' 39"

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

19:12:04

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,714.894 km

Perigee altitude

1,490.427 km

Semi-major axis

7,980.797 km

Eccentricity

0.01406

Inclination

102.73°

RAAN

321.8784°

Arg. of periapsis

124.1855°

True anomaly

293.54107°

Mean anomaly

295.0122°

Eccentric anomaly

294.27771°

Mean motion

3.0442 °/min

Orbital period

118.26 mins

BSTAR

0.0007043

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

DELTA 1 DEB, 18677 (Decayed)

NOAA 5, 9057

DELTA 1 DEB, 16997 (Decayed)

DELTA 1 DEB, 10651 (Decayed)

DELTA 1 DEB, 16999 (Decayed)

DELTA 1 DEB, 20309

DELTA 1 DEB, 10705 (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.
14 mins	2025-12-15 20:49:32.935Z	118.606° SE	2025-12-15 20:56:32.935Z	60.442° ENE	31.549°	2025-12-15 21:03:32.935Z	358.465° N
16 mins	2025-12-15 22:44:32.935Z	183.017° SSW	2025-12-15 22:52:32.935Z	261.911° W	38.808°	2025-12-15 23:00:32.935Z	331.81° NNW
15 mins	2025-12-16 11:08:32.935Z	25.803° NE	2025-12-16 11:15:32.935Z	126.872° SE	42.967°	2025-12-16 11:23:32.935Z	190.003° SSW
11 mins	2025-12-16 13:05:32.935Z	349.615° N	2025-12-16 13:10:32.935Z	303.581° NW	25.097°	2025-12-16 13:16:32.935Z	254.618° W

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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, 13531 on other resources

View DELTA 1 DEB, 13531 on Heavens-Above

View DELTA 1 DEB, 13531 on Keep Track

View DELTA 1 DEB, 13531 on Celestrak

View DELTA 1 DEB, 13531 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, 13531

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 23 hours ago

TLE from 23 hours ago

TLE epoch observation values (Epoch: 2025-12-14T21:19:52.427Z)

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, 13531 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 23 hours ago