Etsuko

08691, 1931 WB, 1931WB, 1992 UZ1, 1992UZ1, 1996 WT, 1996WT, J31W00B, J92U01Z, J96W00T

All data for this body: [vot]

MPC data
Name (number) Etsuko (8691)
a 2.44384
e 0.15375
i / sin(i) 5.4983 / 0.09582
q 2.06811
Q 2.81958
ω 75.7800
Node 308.0203
m 192.6974
n 0.2580
Epoch 2460800.5
nobs 4014
nopp 24
Years observed 1931-2025
rms 0.65
Best values
[raw, vot]

Value Standard error
Parent Vesta (4)
 
ap 2.444
ep 0.125
sin(ip) 0.111
G 0.150
H 13.810
Mass
D 4.38 0.184
pV 0.273 0.0381
Value
Rotational Period 9.000
Period quality 1
Spectral Class V
Spectral Class Score 12.514
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
4 Vesta 0 Vesta Novakovic 2019EPSC...13.1671N HCM
4 Vesta 401 Vesta Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4441 0.1248 0.1108 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.95 0.320 0.320 Masiero 2012ApJ...759L...8M NEATM
4.59 0.225 0.225 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.231 0.0423 0.0423 Masiero 2011ApJ...741...68M NEATM
0.452 0.0880 0.0880 Masiero 2012ApJ...759L...8M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2023-12-94 MPC-2023-12-94 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
13.81 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
9.6 1 Synodic Behrend LCDB Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
V DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
V 0.795 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
V V 0.9573 0.9573 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT