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.

Loading next visibility...

Iframe embed code

<iframe src="https://www.satcat.com/sats-embedded/738?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/738?theme=dark&initialShowStats=false

Optional Secondary NORAD IDs

Max 10 NORAD IDs; Separated by commas

Initial load time (optional)

ISO8601 Format

TLE date request (optional)

ISO8601 Format

Identifier

738, 1964-003B

Orbit

Active

Last TLE update

22 hours ago

Origin

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 (61 years ago)

Launch vehicle

Unknown

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl, 0.8 m

Radar Cross Section

0.687 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history

TLE from 22 hours ago

0 DELTA 1 R/B
1   738U 64003B   25198.50607364 -.00000018  00000-0  00000+0 0  9996
2   738  46.4694  10.6602 2602093 358.5449   0.8598  7.39352219660988

Epoch: 2025-07-17T12:08Z

TLE epoch observation values (Epoch: 2025-07-17T12:08:44.762Z)

Latitude

-0.00001°

Longitude

-107.09723°

Altitude

1,856.666 km

Speed

7.811 km/s

True Right ascension

00h 42m 38s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-40.37096°

Longitude

125.483°

Altitude

5,375.046 km

Speed

5.663 km/s

Apparent Right ascension

14h 27m 21s

Apparent Declination

-46° 59' 44"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

22:49:39

Azimuth

241.096° WSW

Elevation

-50.677°

Doppler factor

Orbital elements

Apogee altitude

7,649.359 km

Perigee altitude

1,856.536 km

Semi-major axis

11,131.084 km

Eccentricity

0.26021

Inclination

46.4694°

RAAN

10.6602°

Arg. of periapsis

358.5449°

True anomaly

1.51682°

Mean anomaly

0.8598°

Eccentric anomaly

1.16219°

Mean motion

1.84815 °/min

Orbital period

194.79 mins

BSTAR

Loading maneuver chart data...

Loading SW <> Apogee altitude chart data...

Loading historical data...

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

RELAY 2, 737

DELTA 1 R/B Visibility forecast

Observer location: undefined°, undefined°

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.
31 mins	2025-07-18 14:13:14.962Z	221.436° SW	2025-07-18 14:24:14.962Z	127.889° SE	43.304°	2025-07-18 14:44:14.962Z	61.616° ENE
52 mins	2025-07-18 17:40:14.962Z	279.31° WNW	2025-07-18 17:54:14.962Z	359.675° N	43.752°	2025-07-18 18:32:14.962Z	92.821° ESE
73 mins	2025-07-18 21:07:14.962Z	297.89° NW	2025-07-18 21:31:14.962Z	224.475° SW	44.007°	2025-07-18 22:20:14.962Z	144.261° SSE
59 mins	2025-07-19 00:41:14.962Z	288.52° WNW	2025-07-19 01:05:14.962Z	247.94° W	23.674°	2025-07-19 01:40:14.962Z	202.851° SW

Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

Click to sort rows by RSO header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Type header in ascending order	Click to sort rows by Inclination Δ header in ascending order	Click to sort rows by RAAN Δ header in ascending order	Click to sort rows by Coplanar Angle header in ascending order	Click to sort rows by SMA Δ header in ascending order	Click to sort rows by Orbital period header in ascending order	Click to sort rows by <5km Md TCA header in ascending order

Authenticating...

Click to sort rows by Secondary header in ascending order	Click to sort rows by Secondary name header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Owner header in ascending order	Click to sort rows by Obj. Type header in ascending order	Click to sort rows by Miss dist. header in ascending order	Click to sort rows by Rel. speed header in ascending order	Click to sort rows by Apr. angle header in ascending order	Click to sort rows by TCA header in ascending order

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.