DELTA 1 R/B, 738

Orbit data source: Space-Track

DELTA 1 R/B, 738 is space debris originally from a launch on Tue, 21 Jan 1964 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/738?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

738, 1964-003B

Orbit

Active

Country

Related business

National Aeronautics and Space Administration (NASA) (US)

Manufacturer

ABL

Mission

Spacecraft

Bus & Motor

ALTAIR, Unknown motor

Mass

24 kg wet, 24 kg dry

Launch date (UTC)

1964-01-21 (62 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

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 2 days ago

TLE from 2 days ago

0 DELTA 1 R/B
1 00738U 64003B   26048.59519605 -.00000011  00000-0  00000-0 0  9994
2 00738  46.4613 128.5150 2604671 239.7889  91.9626  7.39349389676634

Epoch: 2026-02-17T14:17Z

TLE epoch observation values (Epoch: 2026-02-17T14:17:04.938Z)

Latitude

-0.00003°

Longitude

126.67146°

Altitude

5,564.899 km

Speed

5.563 km/s

True Right ascension

08h 34m 03s

True Declination

0° 00' 00"

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

16:33:32

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

7,652.266 km

Perigee altitude

1,853.688 km

Semi-major axis

11,131.114 km

Eccentricity

0.26047

Inclination

46.4613°

RAAN

128.515°

Arg. of periapsis

239.7889°

True anomaly

120.27148°

Mean anomaly

91.9626°

Eccentric anomaly

106.28734°

Mean motion

1.84814 °/min

Orbital period

194.79 mins

BSTAR

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Other satellites on launch #3 in the year 1964 (1964-01-21 UTC)

RELAY 2, 737

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DELTA 1 R/B 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.
51 mins	2026-02-19 16:09:56.519Z	302.527° NW	2026-02-19 16:43:56.519Z	242.179° WSW	35.774°	2026-02-19 17:00:56.519Z	175.018° S
61 mins	2026-02-20 03:53:56.519Z	151.435° SSE	2026-02-20 04:19:56.519Z	103.765° ESE	24.979°	2026-02-20 04:54:56.519Z	59.598° ENE
87 mins	2026-02-20 07:11:56.519Z	218.434° SW	2026-02-20 07:50:56.519Z	141.233° SSE	44.477°	2026-02-20 08:38:56.519Z	62.801° ENE
85 mins	2026-02-20 10:49:56.519Z	269.799° W	2026-02-20 11:41:56.519Z	6.841° NNE	44.338°	2026-02-20 12:14:56.519Z	94.087° ESE

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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, 738 on other resources

View DELTA 1 R/B, 738 on Heavens-Above

View DELTA 1 R/B, 738 on Keep Track

View DELTA 1 R/B, 738 on Celestrak

View DELTA 1 R/B, 738 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, 738

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 2 days ago

TLE from 2 days ago

TLE epoch observation values (Epoch: 2026-02-17T14:17:04.938Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #3 in the year 1964 (1964-01-21 UTC)

DELTA 1 R/B Visibility forecast

Co-orbital & Co-planar RSOs

Check out DELTA 1 R/B, 738 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 2 days ago