DELTA 1 DEB, 12538

Orbit data source: Space-Track

DELTA 1 DEB, 12538 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/12538?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

12538, 1976-077DT

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, 0.2 m

Radar Cross Section

Small (<0.1 m²)

Expand to show TLE details & history
Last TLE update: 7 hours ago

TLE from 7 hours ago

0 DELTA 1 DEB
1 12538U 76077DT  26126.52013500  .00000182  00000-0  24754-2 0  9994
2 12538 102.7736 222.6165 0197078 334.3395  35.2281 12.05743640 27410

Epoch: 2026-05-06T12:28Z

TLE epoch observation values (Epoch: 2026-05-06T12:28:59.664Z)

Latitude

10.58055°

Longitude

168.57325°

Altitude

1,528.697 km

Speed

7.159 km/s

True Right ascension

14h 40m 48s

True Declination

10° 31' 29"

Sunlit

Object was in full shadow 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

03:57:03

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,811.186 km

Perigee altitude

1,494.638 km

Semi-major axis

8,031.049 km

Eccentricity

0.01971

Inclination

102.7736°

RAAN

222.6165°

Arg. of periapsis

334.3395°

True anomaly

36.5574°

Mean anomaly

35.2281°

Eccentric anomaly

35.89006°

Mean motion

3.01568 °/min

Orbital period

119.38 mins

BSTAR

0.0024754

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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 20:58:47.031Z	3.008° NNE	2026-05-06 21:06:47.031Z	306.081° NW	29.285°	2026-05-06 21:14:47.031Z	248.152° W
13 mins	2026-05-07 04:31:47.031Z	101.864° ESE	2026-05-07 04:37:47.031Z	48.774° ENE	26.779°	2026-05-07 04:44:47.031Z	358.33° N
15 mins	2026-05-07 06:26:47.031Z	173.876° S	2026-05-07 06:33:47.031Z	261.656° W	42.917°	2026-05-07 06:41:47.031Z	335.781° NNW
18 mins	2026-05-07 18:55:47.031Z	26.038° NE	2026-05-07 19:04:47.031Z	112.995° SE	41.873°	2026-05-07 19:13:47.031Z	184.902° SSW

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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, 12538 on other resources

View DELTA 1 DEB, 12538 on Heavens-Above

View DELTA 1 DEB, 12538 on Keep Track

View DELTA 1 DEB, 12538 on Celestrak

View DELTA 1 DEB, 12538 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, 12538

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 7 hours ago

TLE from 7 hours ago

TLE epoch observation values (Epoch: 2026-05-06T12:28:59.664Z)

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, 12538 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 7 hours ago