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 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: 10 hours ago

TLE from 10 hours ago

0 VANGUARD R/B
1    16U 58002A   26111.63243060  .00000091  00000-0  98075-4 0  9990
2    16  34.2714 108.5664 2019353 241.7385  96.5036 10.49585498682977

Epoch: 2026-04-21T15:10Z

TLE epoch observation values (Epoch: 2026-04-21T15:10:42.003Z)

Latitude

-0°

Longitude

31.18596°

Altitude

2,968.462 km

Speed

6.331 km/s

True Right ascension

07h 14m 15s

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

08:29:42

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

4,216.242 km

Perigee altitude

656.351 km

Semi-major axis

8,814.433 km

Eccentricity

0.20194

Inclination

34.2714°

RAAN

108.5664°

Arg. of periapsis

241.7385°

True anomaly

118.31877°

Mean anomaly

96.5036°

Eccentric anomaly

107.53596°

Mean motion

2.62272 °/min

Orbital period

137.26 mins

BSTAR

0.000098075

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

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.
45 mins	2026-04-22 02:42:39.748Z	223.472° SW	2026-04-22 03:04:39.748Z	149.174° SSE	40.327°	2026-04-22 03:27:39.748Z	81.928° E
44 mins	2026-04-22 05:12:39.748Z	254.672° W	2026-04-22 05:36:39.748Z	178.464° S	44.034°	2026-04-22 05:56:39.748Z	96.285° ESE
38 mins	2026-04-22 07:44:39.748Z	274.926° WNW	2026-04-22 08:08:39.748Z	199.334° SSW	42.072°	2026-04-22 08:22:39.748Z	125.738° SE
24 mins	2026-04-22 10:20:39.748Z	276.123° WNW	2026-04-22 10:35:39.748Z	225.736° WSW	27.104°	2026-04-22 10:44:39.748Z	174.889° S
17 mins	2026-04-22 23:14:39.748Z	144.81° SSE	2026-04-22 23:21:39.748Z	123.044° SE	14.384°	2026-04-22 23:31:39.748Z	97.359° ESE

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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: 10 hours ago

TLE from 10 hours ago

TLE epoch observation values (Epoch: 2026-04-21T15:10:42.003Z)

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: 10 hours ago