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Asteroid Radar Database
Return to list of asteroid radar detections
4 Vesta
Classification:
[]
H:
3.25 mag,
G:
0.15
MPC page for this object
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JPL SBDB page for this object
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ASTDyS page for this object
History of Radar Detections
Year
Month
Transmitter
Receiver
Frequency
Obs
1979
Nov
Arecibo
Arecibo
2380
[A]
1981
Feb
Arecibo
Arecibo
2380
[A]
1988
Jan
Arecibo
Arecibo
2380
[A]
1992
Mar
Arecibo
Arecibo
2380
[A]
1992
Mar
Goldstone
Goldstone
8560
[G]
2001
Nov
Arecibo
Arecibo
2380
[A]
2003
Mar
Arecibo
Arecibo
2380
[A]
Radar-Based Physical Properties
Prograde
Retrograde
[edit]
name
symbol
value
units
uncertainty
reference
notes
morphology
number of components
N
morphological type
spectrum-based or image-based dimensions
maximum range extent
R
max
km
minimum range extent
R
min
km
maximum Doppler bandwidth
B
max
2630
Hz
1980Icar...43..169O
minimum Doppler bandwidth
B
min
1380
Hz
1980Icar...43..169O
effective diameter
D
eff
km
quality code for size
Q
shape-based dimensions
equivalent diameter
D
equ
km
extent along principal axis x
E
x
km
extent along principal axis y
E
y
km
extent along principal axis z
E
z
km
DEEVE extent along x
D
x
km
DEEVE extent along y
D
y
km
DEEVE extent along z
D
z
km
surface area
A
km
2
volume
V
km
3
spin
spin period
P
spin
h
spin rate
ω
deg/day
YORP acceleration
ω̇
deg/day
2
spin axis ecliptic longitude
λ
deg
spin axis ecliptic latitude
β
deg
reflectivity
radar cross-section OC
σ
OC
0.2
km
2
.1
1980Icar...43..169O
Freq: 2380
radar cross-section SC
σ
SC
km
2
radar cross-section
σ
T
km
2
projected area
A
proj
km
2
radar albedo OC
σ̂
OC
0.084
.027
1996Icar..124..113M
Freq: 2380
at 3.5cm .150+/-0.40
radar albedo SC
σ̂
SC
radar albedo
σ̂
T
circular polarization ratio
μ
C
0.24
.04
1996Icar..124..113M
Freq: 2380
at 3.5cm, 0.32+/-0.04
Orbital Elements at Epoch 2024-03-31 00:00 TT from E2024-DA5 (heliocentric ecliptic J2000)
Element
Value
Units
e
0.0898971
a
2.3609571
AU
i
7.14391
deg
om
103.70488
deg
w
151.69316
deg
ma
223.65556
deg
n
0.27168892
deg/d
Link to complete orbital information at Minor Planet Center