VANGUARD R/B, 12
Orbit data source: Space-Track
VANGUARD R/B, 12 is space debris in LEO originally from a launch on Tue, 17 Feb 1959 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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12 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
GCR/Redlands
Mission
Spacecraft
Bus & Motor
33-KS-2800, Unknown motor
Mass
22 kg wet, 22 kg dry
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Cyl, 0.8 m
Radar Cross Section
1.017 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 12 hours ago
TLE from 12 hours ago
0 VANGUARD R/B
1 00012U 59001B 25246.08873520 .00003420 00000-0 20380-2 0 9994
2 00012 32.8951 156.8095 1646584 25.1009 342.1245 11.47926831498316Epoch: 2025-09-03T02:07Z
TLE epoch observation values (Epoch: 2025-09-03T02:07:46.721Z)
Latitude
-0.00002°
Longitude
142.39417°
Altitude
648.384 km
Speed
8.091 km/s
True Right ascension
10h 27m 14s
True Declination
0° 00' 00"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
06:22:34
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
3,293.185 km
Perigee altitude
558.539 km
Semi-major axis
8,303.999 km
Eccentricity
0.16466
Inclination
32.8951°
RAAN
156.8095°
Arg. of periapsis
25.1009°
True anomaly
334.95855°
Mean anomaly
342.1245°
Eccentric anomaly
338.69705°
Mean motion
2.86822 °/min
Orbital period
125.51 mins
BSTAR
0.002038
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Other satellites on launch #1 in the year 1959 (1959-02-17 UTC)
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. |
|---|---|---|---|---|---|---|---|
| 10 mins | 2025-09-03 23:18:08.090Z | 221.863° SW | 2025-09-03 23:21:08.090Z | 162.904° S | 32.905° | 2025-09-03 23:28:08.090Z | 99.132° ESE |
| 15 mins | 2025-09-04 01:29:08.090Z | 250.279° W | 2025-09-04 01:34:08.090Z | 177.233° S | 36.988° | 2025-09-04 01:44:08.090Z | 115.955° SE |
| 19 mins | 2025-09-04 03:41:08.090Z | 253.296° W | 2025-09-04 03:48:08.090Z | 196.264° SSW | 29.161° | 2025-09-04 04:00:08.090Z | 144.059° SSE |
| 13 mins | 2025-09-04 05:57:08.090Z | 237.507° WSW | 2025-09-04 06:03:08.090Z | 210.444° SW | 14.901° | 2025-09-04 06:10:08.090Z | 185.44° SSW |
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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Event ID | Pc | Md | Secondary | Secondary name | Country | Click to unsort rows by TCA header |
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Authenticating...
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