DELTA 1 DEB, 12531

Orbit data source: Space-Track

DELTA 1 DEB, 12531 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/12531?theme=dark&initialShowStats=false

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Identifier

12531, 1976-077DL

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)

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Last TLE update: 2 days ago

TLE from 2 days ago

0 DELTA 1 DEB
1 12531U 76077DL  26124.88831303 -.00000018  00000-0  21486-3 0  9992
2 12531 101.7869 274.9421 0136806 187.6569 327.7095 12.18514412 41963

Epoch: 2026-05-04T21:19Z

TLE epoch observation values (Epoch: 2026-05-04T21:19:10.245Z)

Latitude

24.93732°

Longitude

-82.08095°

Altitude

1,509.865 km

Speed

7.153 km/s

True Right ascension

06h 41m 55s

True Declination

24° 49' 07"

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

03:57:15

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,705.708 km

Perigee altitude

1,487.509 km

Semi-major axis

7,974.745 km

Eccentricity

0.01368

Inclination

101.7869°

RAAN

274.9421°

Arg. of periapsis

187.6569°

True anomaly

326.85978°

Mean anomaly

327.7095°

Eccentric anomaly

327.28588°

Mean motion

3.04767 °/min

Orbital period

118.12 mins

BSTAR

0.00021486

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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.
16 mins	2026-05-06 22:21:58.993Z	25.433° NE	2026-05-06 22:29:58.993Z	91.14° ESE	39.407°	2026-05-06 22:37:58.993Z	177.946° S
13 mins	2026-05-07 00:19:58.993Z	356.161° N	2026-05-07 00:25:58.993Z	301.868° NW	29.709°	2026-05-07 00:32:58.993Z	242.73° WSW
11 mins	2026-05-07 07:46:58.993Z	90.649° ESE	2026-05-07 07:51:58.993Z	53.569° ENE	21.479°	2026-05-07 07:57:58.993Z	8.986° NNE
17 mins	2026-05-07 09:38:58.993Z	159.124° S	2026-05-07 09:46:58.993Z	41.776° NE	44.99°	2026-05-07 09:55:58.993Z	343.103° N
11 mins	2026-05-07 11:38:58.993Z	233.745° WSW	2026-05-07 11:43:58.993Z	270.295° WNW	18.97°	2026-05-07 11:49:58.993Z	311.609° NW

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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, 12531 on other resources

View DELTA 1 DEB, 12531 on Heavens-Above

View DELTA 1 DEB, 12531 on Keep Track

View DELTA 1 DEB, 12531 on Celestrak

View DELTA 1 DEB, 12531 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, 12531

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: 2026-05-04T21:19:10.245Z)

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, 12531 on other resources

Documentation

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