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: 1 day ago

TLE from 1 day ago

0 DELTA 1 R/B
1 00738U 64003B   25354.25576173 -.00000018  00000-0  00000-0 0  9996
2 00738  46.4415 195.3055 2599719 173.1977 191.2537  7.39346163672240

Epoch: 2025-12-20T06:08Z

TLE epoch observation values (Epoch: 2025-12-20T06:08:17.813Z)

Latitude

0.00001°

Longitude

14.14611°

Altitude

7,610.508 km

Speed

4.603 km/s

True Right ascension

13h 01m 13s

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

12:05:23

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

7,646.797 km

Perigee altitude

1,859.225 km

Semi-major axis

11,131.148 km

Eccentricity

0.25997

Inclination

46.4415°

RAAN

195.3055°

Arg. of periapsis

173.1977°

True anomaly

186.85654°

Mean anomaly

191.2537°

Eccentric anomaly

188.93918°

Mean motion

1.84813 °/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.
73 mins	2025-12-21 14:21:26.746Z	201.353° SSW	2025-12-21 15:08:26.746Z	134.085° SE	40.943°	2025-12-21 15:34:26.746Z	61.726° ENE
57 mins	2025-12-21 18:05:26.746Z	253.436° W	2025-12-21 18:45:26.746Z	349.608° N	44.288°	2025-12-21 19:02:26.746Z	72.763° E
32 mins	2025-12-21 21:56:26.746Z	294.191° NW	2025-12-21 22:17:26.746Z	317.141° NNW	44.969°	2025-12-21 22:28:26.746Z	118.464° SE
13 mins	2025-12-22 01:34:26.746Z	280.291° WNW	2025-12-22 01:41:26.746Z	244.07° WSW	18.768°	2025-12-22 01:47:26.746Z	204.874° SW

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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: 1 day ago

TLE from 1 day ago

TLE epoch observation values (Epoch: 2025-12-20T06:08:17.813Z)

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: 1 day ago