DELTA 1 DEB, 12540

Orbit data source: Space-Track

DELTA 1 DEB, 12540 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/12540?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

12540, 1976-077DV

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: 13 hours ago

TLE from 13 hours ago

0 DELTA 1 DEB
1 12540U 76077DV  26062.78861607 -.00000250  00000-0 -13758-2 0  9993
2 12540 102.4305 181.0655 0048026 186.6347 329.6825 12.47144706 87602

Epoch: 2026-03-03T18:55Z

TLE epoch observation values (Epoch: 2026-03-03T18:55:36.428Z)

Latitude

23.38843°

Longitude

-78.9555°

Altitude

1,446.437 km

Speed

7.155 km/s

True Right ascension

00h 26m 02s

True Declination

23° 16' 28"

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

11:35:10

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,511.763 km

Perigee altitude

1,436.341 km

Semi-major axis

7,852.189 km

Eccentricity

0.0048

Inclination

102.4305°

RAAN

181.0655°

Arg. of periapsis

186.6347°

True anomaly

329.40325°

Mean anomaly

329.6825°

Eccentric anomaly

329.54302°

Mean motion

3.1193 °/min

Orbital period

115.41 mins

BSTAR

-0.0013758

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

DELTA 1 DEB, 10651 (Decayed)

DELTA 1 DEB, 16997 (Decayed)

DELTA 1 DEB, 40770

DELTA 1 DEB, 40753

DELTA 1 DEB, 20088

DELTA 1 DEB, 10753 (Decayed)

DELTA 1 DEB, 16999 (Decayed)

DELTA 1 DEB, 10705 (Decayed)

DELTA 1 DEB, 10657

DELTA 1 DEB, 10656

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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.
8 mins	2026-03-04 07:47:17.220Z	268.936° W	2026-03-04 07:47:17.220Z	268.936° W	44.473°	2026-03-04 07:55:17.220Z	339.415° N
7 mins	2026-03-04 09:38:17.220Z	246.086° WSW	2026-03-04 09:41:17.220Z	268.413° W	14.281°	2026-03-04 09:45:17.220Z	297.772° NW
12 mins	2026-03-04 19:47:17.220Z	43.311° NE	2026-03-04 19:53:17.220Z	105.461° ESE	30.147°	2026-03-04 19:59:17.220Z	159.133° S
13 mins	2026-03-04 21:40:17.220Z	3.545° NNE	2026-03-04 21:46:17.220Z	295.486° NW	37.884°	2026-03-04 21:53:17.220Z	226.596° WSW
4 mins	2026-03-05 05:01:17.220Z	56.217° ENE	2026-03-05 05:03:17.220Z	41.673° NE	12.204°	2026-03-05 05:05:17.220Z	27.221° NE
15 mins	2026-03-05 06:47:17.220Z	135.102° SSE	2026-03-05 06:54:17.220Z	67.864° E	38.994°	2026-03-05 07:02:17.220Z	350.98° N

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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, 12540 on other resources

View DELTA 1 DEB, 12540 on Heavens-Above

View DELTA 1 DEB, 12540 on Keep Track

View DELTA 1 DEB, 12540 on Celestrak

View DELTA 1 DEB, 12540 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, 12540

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 13 hours ago

TLE from 13 hours ago

TLE epoch observation values (Epoch: 2026-03-03T18:55:36.428Z)

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, 12540 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 13 hours ago