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

Last TLE update

15 hours ago

Origin

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 (67 years ago)

Launch vehicle

Unknown

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl, 0.8 m

Radar Cross Section

1.017 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history

TLE from 15 hours ago

0 VANGUARD R/B
1 00016U 58002A   25221.38564433 -.00000022  00000-0 -57933-4 0  9997
2 00016  34.2753 126.7675 2024120 243.8932  93.9909 10.49572878656152

Epoch: 2025-08-09T09:15Z

TLE epoch observation values (Epoch: 2025-08-09T09:15:19.67Z)

Latitude

-0.00002°

Longitude

29.81341°

Altitude

2,899.555 km

Speed

6.381 km/s

True Right ascension

08h 27m 04s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

4.06885°

Longitude

-157.96497°

Altitude

1,619.803 km

Speed

7.38 km/s

Apparent Right ascension

22h 11m 57s

Apparent Declination

-22° 05' 39"

Sunlit

Object is in full shadow

Visualization observer readout

Local Sidereal Time

14:34:21

Azimuth

92.909° ESE

Elevation

-32.339°

Doppler factor

Orbital elements

Apogee altitude

4,220.529 km

Perigee altitude

652.206 km

Semi-major axis

8,814.504 km

Eccentricity

0.20241

Inclination

34.2753°

RAAN

126.7675°

Arg. of periapsis

243.8932°

True anomaly

116.16424°

Mean anomaly

93.9909°

Eccentric anomaly

105.18342°

Mean motion

2.62269 °/min

Orbital period

137.26 mins

BSTAR

-0.000057933

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

VANGUARD 1, 5

VANGUARD DEB, 1576

VANGUARD 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.
39 mins	2025-08-10 01:48:51.694Z	275.747° WNW	2025-08-10 02:13:51.694Z	199.073° SSW	41.89°	2025-08-10 02:27:51.694Z	127.152° SE
24 mins	2025-08-10 04:25:51.694Z	275.788° WNW	2025-08-10 04:40:51.694Z	225.746° WSW	26.523°	2025-08-10 04:49:51.694Z	176.375° S
19 mins	2025-08-10 17:18:51.694Z	148.147° SSE	2025-08-10 17:26:51.694Z	122.609° SE	15.113°	2025-08-10 17:37:51.694Z	94.579° ESE
40 mins	2025-08-10 19:36:51.694Z	205.647° SW	2025-08-10 19:53:51.694Z	142.24° SSE	36.176°	2025-08-10 20:16:51.694Z	80.157° E
45 mins	2025-08-10 22:02:51.694Z	243.933° WSW	2025-08-10 22:24:51.694Z	170.069° S	43.537°	2025-08-10 22:47:51.694Z	89.253° E

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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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

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