DELTA 1 R/B(1), 11636

Orbit data source: Space-Track

DELTA 1 R/B(1), 11636 is space debris in LEO originally from a launch on Fri, 07 Dec 1979 UTC launched from the Air Force Eastern Test Range (AFETR). 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/11636?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

11636, 1979-101B

Orbit

LEO

Country

Related business

National Aeronautics and Space Administration (NASA) (US)

Manufacturer

MDAC-HB

Mission

Spacecraft

Bus & Motor

DELTA/TR-201, Unknown motor

Mass

845 kg wet, 845 kg dry

Launch date (UTC)

1979-12-07 (47 years ago)

Launch vehicle

Unknown

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown

Radar Cross Section

Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 1 day ago

TLE from 1 day ago

0 DELTA 1 R/B(1)
1 11636U 79101B   26167.92966822  .00000432  00000-0  22022-3 0  9991
2 11636  28.2136  43.6620 1261239 108.3206 265.8392 12.21255989997134

Epoch: 2026-06-16T22:18Z

TLE epoch observation values (Epoch: 2026-06-16T22:18:43.334Z)

Latitude

0.00002°

Longitude

163.78683°

Altitude

1,781.45 km

Speed

6.906 km/s

True Right ascension

02h 54m 38s

True Declination

0° 00' 00"

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

14:18:31

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

2,595.926 km

Perigee altitude

585.767 km

Semi-major axis

7,968.984 km

Eccentricity

0.12612

Inclination

28.2136°

RAAN

43.662°

Arg. of periapsis

108.3206°

True anomaly

251.73129°

Mean anomaly

265.8392°

Eccentric anomaly

258.75164°

Mean motion

3.05098 °/min

Orbital period

118 mins

BSTAR

0.00022022

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Other satellites on launch #101 in the year 1979 (1979-12-07 UTC)

SATCOM 3 DEB, 32988

SATCOM 3 DEB, 49956

SATCOM 3 DEB *, 32990

SATCOM 3 DEB, 32991

DELTA 1 R/B(2), 11637 (Decayed)

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DELTA 1 R/B(1) 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.
7 mins	2026-06-18 17:38:25.198Z	188.846° SSW	2026-06-18 17:42:25.198Z	161.876° S	13.168°	2026-06-18 17:45:25.198Z	137.134° SSE
8 mins	2026-06-18 19:43:25.198Z	214.874° SW	2026-06-18 19:47:25.198Z	175.025° S	20.133°	2026-06-18 19:51:25.198Z	125.66° SE
5 mins	2026-06-18 21:49:25.198Z	223.957° SW	2026-06-18 21:52:25.198Z	179.595° S	18.931°	2026-06-18 21:54:25.198Z	148.021° SSE

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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 R/B(1), 11636 on other resources

View DELTA 1 R/B(1), 11636 on Heavens-Above

View DELTA 1 R/B(1), 11636 on Keep Track

View DELTA 1 R/B(1), 11636 on Celestrak

View DELTA 1 R/B(1), 11636 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 R/B(1), 11636

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 1 day ago

TLE from 1 day ago

TLE epoch observation values (Epoch: 2026-06-16T22:18:43.334Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #101 in the year 1979 (1979-12-07 UTC)

DELTA 1 R/B(1) Visibility forecast

Co-orbital & Co-planar RSOs

Check out DELTA 1 R/B(1), 11636 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 1 day ago