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VANGUARD 1, 5

Orbit data source: Space-Track

VANGUARD 1, 5 is a payload satellite owned by NRL (US) in LEO that was launched on Mon, 17 Mar 1958 UTC via a VANGUARD launch vehicle from the Air Force Eastern Test Range (AFETR). Payload-class satellites include a variety of spacecraft equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.

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Iframe embed code

<iframe src="https://www.satcat.com/sats-embedded/5?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/5?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

5, 1958-002B

Orbit

LEO

Last TLE update

1 day ago

Origin

United States Navy (US)

Manufacturer

NRL

Mission

Civil Technology

Bus & Motor

NRL 6", Unknown motor

Mass

2 kg wet, 2 kg dry

Launch date (UTC)

1958-03-17 (67 years ago)

Launch vehicle

VANGUARD

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Sphere, 0.1 m

Radar Cross Section

0.020 m², Small (<0.1 m²)

Expand to show TLE details & history

TLE from 1 day ago

0 VANGUARD 1
1 00005U 58002B   25221.29042544 -.00000033  00000-0 -48775-4 0  9995
2 00005  34.2430 196.9647 1841316 172.2582 191.1063 10.85924828409377

Epoch: 2025-08-09T06:58Z

TLE epoch observation values (Epoch: 2025-08-09T06:58:12.758Z)

Latitude

-0°

Longitude

134.38329°

Altitude

3,799.453 km

Speed

5.664 km/s

True Right ascension

13h 07m 51s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-11.67839°

Longitude

113.67654°

Altitude

3,714.695 km

Speed

5.722 km/s

Apparent Right ascension

10h 57m 26s

Apparent Declination

-23° 22' 21"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

21:19:07

Azimuth

301.215° NW

Elevation

-63.484°

Doppler factor

Orbital elements

Apogee altitude

3,825.26 km

Perigee altitude

652.018 km

Semi-major axis

8,616.776 km

Eccentricity

0.18413

Inclination

34.243°

RAAN

196.9647°

Arg. of periapsis

172.2582°

True anomaly

187.7962°

Mean anomaly

191.1063°

Eccentric anomaly

189.3858°

Mean motion

2.71348 °/min

Orbital period

132.67 mins

BSTAR

-0.000048775

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Other satellites on launch #2 in the year 1958 (1958-03-17 UTC)

VANGUARD R/B, 16

VANGUARD DEB, 1576

VANGUARD 1 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.
10 mins	2025-08-10 07:59:32.007Z	265.492° W	2025-08-10 08:05:32.007Z	220.828° SW	20.764°	2025-08-10 08:09:32.007Z	173.447° S
28 mins	2025-08-10 22:41:32.007Z	183.999° SSW	2025-08-10 22:56:32.007Z	140.409° SSE	23.707°	2025-08-10 23:09:32.007Z	94.585° ESE
31 mins	2025-08-11 01:01:32.007Z	223.264° SW	2025-08-11 01:20:32.007Z	156.219° SSE	37.815°	2025-08-11 01:32:32.007Z	89.095° E
25 mins	2025-08-11 03:27:32.007Z	253.064° W	2025-08-11 03:43:32.007Z	184.548° SSW	42.631°	2025-08-11 03:52:32.007Z	98.6° ESE
17 mins	2025-08-11 05:54:32.007Z	269.996° W	2025-08-11 06:05:32.007Z	199.105° SSW	38.364°	2025-08-11 06:11:32.007Z	128.335° SE

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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Authenticating...

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Check out VANGUARD 1, 5 on other resources

View VANGUARD 1, 5 on NASA - NSSDCA Website

View VANGUARD 1, 5 on Heavens-Above

View VANGUARD 1, 5 on Keep Track

View VANGUARD 1, 5 on Celestrak

View VANGUARD 1, 5 on Gunter's Space Page

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