VANGUARD R/B, 16

Orbit data source: Space-Track

VANGUARD R/B, 16 is space debris in LEO originally from a launch on Mon, 17 Mar 1958 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 src="https://www.satcat.com/sats-embedded/16?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/16?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

16, 1958-002A

Orbit

LEO

Country

Related business

United States Navy (US)

Manufacturer

GCR/Redlands

Mission

Spacecraft

Bus & Motor

33-KS-2800, Unknown motor

Mass

22 kg wet, 22 kg dry

Launch date (UTC)

1958-03-17 (68 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: 21 hours ago

TLE from 21 hours ago

0 VANGUARD R/B
1 00016U 58002A   26201.66155273  .00000100  00000-0  11276-3 0  9999
2 00016  34.2705 208.2967 2017886 261.8716  74.9550 10.49605227692437

Epoch: 2026-07-20T15:52Z

TLE epoch observation values (Epoch: 2026-07-20T15:52:38.155Z)

Latitude

-0.00005°

Longitude

31.69526°

Altitude

2,323.688 km

Speed

6.812 km/s

True Right ascension

13h 53m 11s

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

02:10:29

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

4,214.816 km

Perigee altitude

657.556 km

Semi-major axis

8,814.323 km

Eccentricity

0.20179

Inclination

34.2705°

RAAN

208.2967°

Arg. of periapsis

261.8716°

True anomaly

98.18732°

Mean anomaly

74.955°

Eccentric anomaly

86.49501°

Mean motion

2.62277 °/min

Orbital period

137.26 mins

BSTAR

0.00011276

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

VANGUARD DEB, 69999

VANGUARD DEB, 1576

VANGUARD 1, 5

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VANGUARD 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.
4 mins	2026-07-22 00:01:41.539Z	123.992° SE	2026-07-22 00:03:41.539Z	117.395° SE	10.418°	2026-07-22 00:05:41.539Z	111.232° ESE
36 mins	2026-07-22 02:14:41.539Z	199.75° SSW	2026-07-22 02:28:41.539Z	138.052° SSE	33.999°	2026-07-22 02:50:41.539Z	79.525° E
45 mins	2026-07-22 04:38:41.539Z	241.429° WSW	2026-07-22 04:58:41.539Z	161.315° S	43.283°	2026-07-22 05:23:41.539Z	87.609° E
45 mins	2026-07-22 07:07:41.539Z	267.556° W	2026-07-22 07:31:41.539Z	189.728° SSW	43.872°	2026-07-22 07:52:41.539Z	110.405° ESE
38 mins	2026-07-22 09:40:41.539Z	278.699° WNW	2026-07-22 10:02:41.539Z	215.29° SW	37.742°	2026-07-22 10:18:41.539Z	145.979° SSE
19 mins	2026-07-22 12:18:41.539Z	266.529° W	2026-07-22 12:28:41.539Z	237.401° WSW	16.86°	2026-07-22 12:37:41.539Z	201.946° SSW

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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 VANGUARD R/B, 16 on other resources

View VANGUARD R/B, 16 on Heavens-Above

View VANGUARD R/B, 16 on Keep Track

View VANGUARD R/B, 16 on Celestrak

View VANGUARD R/B, 16 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 R/B, 16

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 21 hours ago

TLE from 21 hours ago

TLE epoch observation values (Epoch: 2026-07-20T15:52:38.155Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

VANGUARD R/B Visibility forecast

Co-orbital & Co-planar RSOs

Check out VANGUARD R/B, 16 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 21 hours ago