DELTA 1 DEB, 12581

Orbit data source: Space-Track

DELTA 1 DEB, 12581 is space debris in LEO 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/12581?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

12581, 1976-077DZ

Orbit

LEO

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: 5 hours ago

TLE from 5 hours ago

0 DELTA 1 DEB
1 12581U 76077DZ  25343.67047094  .00000038  00000-0  10969-2 0  9996
2 12581 102.4788 234.0657 0380977  96.4360 300.3321 11.70240194 43220

Epoch: 2025-12-09T16:05Z

TLE epoch observation values (Epoch: 2025-12-09T16:05:28.689Z)

Latitude

32.09474°

Longitude

-93.89524°

Altitude

1,672.07 km

Speed

7.104 km/s

True Right ascension

15h 04m 30s

True Declination

31° 57' 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

19:07:18

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

2,126.732 km

Perigee altitude

1,502.482 km

Semi-major axis

8,192.744 km

Eccentricity

0.0381

Inclination

102.4788°

RAAN

234.0657°

Arg. of periapsis

96.436°

True anomaly

296.4742°

Mean anomaly

300.3321°

Eccentric anomaly

298.41219°

Mean motion

2.92684 °/min

Orbital period

123 mins

BSTAR

0.0010969

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

DELTA 1 DEB, 18677 (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.
16 mins	2025-12-10 04:51:23.620Z	33.922° NE	2025-12-10 04:59:23.620Z	104.968° ESE	32.514°	2025-12-10 05:07:23.620Z	166.871° S
14 mins	2025-12-10 06:53:23.620Z	2.52° NNE	2025-12-10 06:59:23.620Z	304.19° NW	35.983°	2025-12-10 07:07:23.620Z	230.706° WSW
11 mins	2025-12-10 14:40:23.620Z	92.008° ESE	2025-12-10 14:45:23.620Z	53.459° ENE	21.356°	2025-12-10 14:51:23.620Z	6.779° NNE
16 mins	2025-12-10 16:37:23.620Z	162.62° S	2025-12-10 16:45:23.620Z	280.963° WNW	44.827°	2025-12-10 16:53:23.620Z	340.485° N
8 mins	2025-12-10 18:43:23.620Z	244.24° WSW	2025-12-10 18:46:23.620Z	265.358° W	15.211°	2025-12-10 18:51:23.620Z	300.867° 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, 12581 on other resources

View DELTA 1 DEB, 12581 on Heavens-Above

View DELTA 1 DEB, 12581 on Keep Track

View DELTA 1 DEB, 12581 on Celestrak

View DELTA 1 DEB, 12581 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, 12581

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 5 hours ago

TLE from 5 hours ago

TLE epoch observation values (Epoch: 2025-12-09T16:05:28.689Z)

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, 12581 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 5 hours ago