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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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  26079.89983164 -.00000033  00000-0  76496-4 0  9994
2 12531 101.7771 233.1257 0135575 268.6601 259.2629 12.18511463 36484

Epoch: 2026-03-20T21:35Z

TLE epoch observation values (Epoch: 2026-03-20T21:35:45.453Z)

Latitude

13.27713°

Longitude

-86.43559°

Altitude

1,622.389 km

Speed

7.051 km/s

True Right ascension

03h 43m 43s

True Declination

13° 12' 32"

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

19:10:59

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,704.739 km

Perigee altitude

1,488.503 km

Semi-major axis

7,974.758 km

Eccentricity

0.01356

Inclination

101.7771°

RAAN

233.1257°

Arg. of periapsis

268.6601°

True anomaly

257.74151°

Mean anomaly

259.2629°

Eccentric anomaly

258.5017°

Mean motion

3.04766 °/min

Orbital period

118.12 mins

BSTAR

0.000076496

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

DELTA 1 DEB, 18677 (Decayed)

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.
17 mins	2026-03-22 22:34:04.703Z	24.75° NE	2026-03-22 22:43:04.703Z	106.134° ESE	40.754°	2026-03-22 22:51:04.703Z	180.115° SSW
14 mins	2026-03-23 00:32:04.703Z	356.198° N	2026-03-23 00:38:04.703Z	305.766° NW	30.434°	2026-03-23 00:46:04.703Z	242.216° WSW
11 mins	2026-03-23 07:59:04.703Z	89.299° E	2026-03-23 08:04:04.703Z	50.722° ENE	22.066°	2026-03-23 08:10:04.703Z	7.477° NNE
17 mins	2026-03-23 09:51:04.703Z	160.142° S	2026-03-23 09:59:04.703Z	340.213° N	44.867°	2026-03-23 10:08:04.703Z	342.84° N
10 mins	2026-03-23 11:51:04.703Z	235.913° WSW	2026-03-23 11:56:04.703Z	272.883° WNW	18.307°	2026-03-23 12:01:04.703Z	307.666° 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: 2026-03-20T21:35:45.453Z)

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