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 (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

Small (<0.1 m²)

Expand to show TLE details & history
Last TLE update: 1 day ago

TLE from 1 day ago

0 DELTA 1 DEB
1 13531U 76077ED  26125.83546986 -.00000044  00000-0  18782-4 0  9994
2 13531 102.7522 104.0181 0140764 240.2051 188.4122 12.17154506950906

Epoch: 2026-05-05T20:03Z

TLE epoch observation values (Epoch: 2026-05-05T20:03:04.595Z)

Latitude

65.14281°

Longitude

-89.54622°

Altitude

1,727.199 km

Speed

6.971 km/s

True Right ascension

04h 59m 42s

True Declination

65° 01' 38"

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

03:57:04

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,714.949 km

Perigee altitude

1,490.269 km

Semi-major axis

7,980.746 km

Eccentricity

0.01408

Inclination

102.7522°

RAAN

104.0181°

Arg. of periapsis

240.2051°

True anomaly

188.18026°

Mean anomaly

188.4122°

Eccentric anomaly

188.29583°

Mean motion

3.04423 °/min

Orbital period

118.26 mins

BSTAR

0.000018782

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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.
18 mins	2026-05-06 21:24:47.571Z	136.036° SSE	2026-05-06 21:33:47.571Z	59.795° ENE	39.438°	2026-05-06 21:42:47.571Z	349.227° N
15 mins	2026-05-06 23:22:47.571Z	201.524° SSW	2026-05-06 23:29:47.571Z	262.354° W	31.811°	2026-05-06 23:37:47.571Z	324.81° NNW
11 mins	2026-05-07 09:51:47.571Z	54.593° ENE	2026-05-07 09:56:47.571Z	92.797° ESE	20.089°	2026-05-07 10:02:47.571Z	137.316° SSE
16 mins	2026-05-07 11:45:47.571Z	16.612° NNE	2026-05-07 11:53:47.571Z	271.367° WNW	44.728°	2026-05-07 12:01:47.571Z	205.66° SW
11 mins	2026-05-07 13:42:47.571Z	350.9° N	2026-05-07 13:47:47.571Z	314.857° NW	20.043°	2026-05-07 13:53:47.571Z	270.716° 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, 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: 1 day ago

TLE from 1 day ago

TLE epoch observation values (Epoch: 2026-05-05T20:03:04.595Z)

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: 1 day ago