DELTA 1 DEB, 7138

Orbit data source: Space-Track

DELTA 1 DEB, 7138 is space debris in SSO originally from a launch on Tue, 06 Nov 1973 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/7138?theme=dark&initialShowStats=false

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ISO8601 Format

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ISO8601 Format

Identifier

7138, 1973-086DC

Orbit

SSO

Country

Related business

National Aeronautics and Space Administration (NASA) (US)

Manufacturer

Unknown

Mission

Spacecraft

Bus & Motor

Unknown

Mass

Unknown

Launch date (UTC)

1973-11-06 (53 years ago)

Launch vehicle

Unknown

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown shape, 0.6 m

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 17 hours ago

TLE from 17 hours ago

0 DELTA 1 DEB
1 07138U 73086DC  26287.13181291 -.00000003  00000-0  33983-3 0  9997
2 07138 102.0832 227.9312 0053908  95.0564 278.0168 12.31902104380519

Epoch: 2026-10-14T03:09Z

TLE epoch observation values (Epoch: 2026-10-14T03:09:48.635Z)

Latitude

12.1448°

Longitude

155.16502°

Altitude

1,537.178 km

Speed

7.101 km/s

True Right ascension

15h 01m 12s

True Declination

12° 04' 52"

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

14:42:52

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,581.387 km

Perigee altitude

1,496.031 km

Semi-major axis

7,916.846 km

Eccentricity

0.00539

Inclination

102.0832°

RAAN

227.9312°

Arg. of periapsis

95.0564°

True anomaly

277.40453°

Mean anomaly

278.0168°

Eccentric anomaly

277.71072°

Mean motion

3.08116 °/min

Orbital period

116.84 mins

BSTAR

0.00033983

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Other satellites on launch #86 in the year 1973 (1973-11-06 UTC)

DELTA 1 DEB, 7487 (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	2026-10-14 20:42:48.354Z	187.345° SSW	2026-10-14 20:50:48.354Z	261.473° W	47.405°	2026-10-14 20:58:48.354Z	331.062° NNW
5 mins	2026-10-15 07:06:48.354Z	72.241° E	2026-10-15 07:08:48.354Z	86.629° E	12.542°	2026-10-15 07:11:48.354Z	108.103° ESE
15 mins	2026-10-15 08:57:48.354Z	22.816° NE	2026-10-15 09:04:48.354Z	93.963° ESE	73.059°	2026-10-15 09:12:48.354Z	190.371° SSW
11 mins	2026-10-15 10:53:48.354Z	349.937° N	2026-10-15 10:58:48.354Z	306.658° NW	27.122°	2026-10-15 11:04:48.354Z	256.838° W
11 mins	2026-10-15 18:15:48.354Z	96.107° ESE	2026-10-15 18:20:48.354Z	52.529° ENE	26.065°	2026-10-15 18:26:48.354Z	4.953° NNE

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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, 7138 on other resources

View DELTA 1 DEB, 7138 on Heavens-Above

View DELTA 1 DEB, 7138 on Keep Track

View DELTA 1 DEB, 7138 on Celestrak

View DELTA 1 DEB, 7138 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, 7138

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 17 hours ago

TLE from 17 hours ago

TLE epoch observation values (Epoch: 2026-10-14T03:09:48.635Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #86 in the year 1973 (1973-11-06 UTC)

DELTA 1 DEB Visibility forecast

Co-orbital & Co-planar RSOs

Check out DELTA 1 DEB, 7138 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 17 hours ago