DELTA 1 R/B, 4377

Orbit data source: Space-Track

DELTA 1 R/B, 4377 is space debris in HEO originally from a launch on Thu, 23 Apr 1970 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/4377?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/4377?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

4377, 1970-032B

Orbit

HEO

Last TLE update

18 hours ago

Origin

National Aeronautics and Space Administration (NASA) (US)

Manufacturer

Thiokol/TE

Mission

Spacecraft

Bus & Motor

STAR 37, Unknown motor

Mass

65 kg wet, 65 kg dry

Launch date (UTC)

1970-04-23 (55 years ago)

Launch vehicle

Unknown

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Sphere + Cone, 1 m

Radar Cross Section

0.734 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 18 hours ago

0 DELTA 1 R/B
1  4377U 70032B   25139.88157469  .00015576  00000-0  24527-2 0  9997
2  4377  26.8050  18.5844 5771277  92.1062 331.0566  4.39821229615983

Epoch: 2025-05-19T21:09Z

TLE epoch observation values (Epoch: 2025-05-19T21:09:28.053Z)

Latitude

-0.00002°

Longitude

-176.5652°

Altitude

4,333.118 km

Speed

7.007 km/s

True Right ascension

01h 14m 21s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-22.6711°

Longitude

58.40045°

Altitude

13,622.888 km

Speed

3.812 km/s

Apparent Right ascension

16h 02m 27s

Apparent Declination

-29° 42' 27"

Sunlit

Object is in full shadow

Visualization observer readout

Local Sidereal Time

00:12:19

Azimuth

263.699° W

Elevation

-42.501°

Doppler factor

Orbital elements

Apogee altitude

18,444.624 km

Perigee altitude

277.543 km

Semi-major axis

15,739.22 km

Eccentricity

0.57713

Inclination

26.805°

RAAN

18.5844°

Arg. of periapsis

92.1062°

True anomaly

Unknown

Mean anomaly

331.0566°

Eccentric anomaly

Unknown

Mean motion

1.09918 °/min

Orbital period

327.52 mins

BSTAR

0.0024527

Loading maneuver chart data...

Loading SW <> Apogee altitude chart data...

Loading historical data...

Other satellites on launch #32 in the year 1970 (1970-04-23 UTC)

INTELSAT 3-F7, 4376

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.
6 mins	2025-05-20 19:10:40.278Z	211.836° SW	2025-05-20 19:14:40.278Z	187.951° SSW	13.495°	2025-05-20 19:16:40.278Z	167.083° S

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, 4377 on other resources

View DELTA 1 R/B, 4377 on Heavens-Above

View DELTA 1 R/B, 4377 on Keep Track

View DELTA 1 R/B, 4377 on Celestrak

View DELTA 1 R/B, 4377 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.