Showing default

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.

Loading next visibility...

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

Optional Secondary NORAD IDs

Max 10 NORAD IDs; Separated by commas

Initial load time (optional)

ISO8601 Format

TLE date request (optional)

ISO8601 Format

Identifier

5, 1958-002B

Orbit

LEO

Country

Related business

United States Navy (US)

Manufacturer

NRL

Mission

Spacecraft

Bus & Motor

NRL 6", Unknown motor

Mass

2 kg wet, 2 kg dry

Launch date (UTC)

1958-03-17 (68 years ago)

Launch vehicle

VANGUARD

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: 5 days ago

TLE from 5 days ago

0 VANGUARD 1
1 00005U 58002B   26151.91669476  .00000340  00000-0  46761-3 0  9997
2 00005  34.2470   4.5373 1835528  65.1288 312.8705 10.85988988441516

Epoch: 2026-05-31T22:00Z

TLE epoch observation values (Epoch: 2026-05-31T22:00:02.427Z)

Latitude

0.00003°

Longitude

145.11573°

Altitude

1,346.561 km

Speed

7.547 km/s

True Right ascension

00h 18m 08s

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

12:03:32

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

3,819.869 km

Perigee altitude

656.728 km

Semi-major axis

8,616.435 km

Eccentricity

0.18355

Inclination

34.247°

RAAN

4.5373°

Arg. of periapsis

65.1288°

True anomaly

294.93189°

Mean anomaly

312.8705°

Eccentric anomaly

304.16907°

Mean motion

2.71364 °/min

Orbital period

132.66 mins

BSTAR

0.00046761

Loading maneuver chart data...

Computing Atmospheric mass density...

Loading historical data...

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

VANGUARD DEB, 1576

VANGUARD R/B, 16

Did you know?

You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.

Click here to try in Sandbox

VANGUARD 1 Visibility forecast

Loading observer location...
Set Observer location

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.
7 mins	2026-06-06 15:01:58.485Z	189.746° SSW	2026-06-06 15:05:58.485Z	156.985° SSE	14.747°	2026-06-06 15:08:58.485Z	125.078° SE
7 mins	2026-06-06 17:21:58.485Z	226.671° WSW	2026-06-06 17:25:58.485Z	164.05° S	28.937°	2026-06-06 17:28:58.485Z	109.922° ESE
6 mins	2026-06-06 19:42:58.485Z	240.138° WSW	2026-06-06 19:44:58.485Z	192.356° SSW	32.713°	2026-06-06 19:48:58.485Z	118.535° SE
6 mins	2026-06-06 22:02:58.485Z	225.366° WSW	2026-06-06 22:04:58.485Z	194.11° SSW	20.102°	2026-06-06 22:08:58.485Z	153.017° SSE

Items per page:

1–4 of 4 items

of 1 page

Co-orbital & Co-planar RSOs

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

Please sign-in to view Co-orbital & Co-planar RSOs.

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 descending order

CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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 descending order

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.

VANGUARD 1, 5

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 5 days ago

TLE from 5 days ago

TLE epoch observation values (Epoch: 2026-05-31T22:00:02.427Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

VANGUARD 1 Visibility forecast

Co-orbital & Co-planar RSOs

Check out VANGUARD 1, 5 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 5 days ago