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 2.44375
e 0.15425
i / sin(i) 5.4983 / 0.09582
q 2.06679
Q 2.82070
ω 75.7991
Node 308.0328
m 37.8141
n 0.2580
Epoch 2460200.5
nobs 3328
nopp 23
Years observed 1931-2023
rms 0.55
Best values
[raw, vot]

Value Standard error
Parent Vesta (4)
 
ap 2.444
ep 0.125
sin(ip) 0.111
Value Standard error
G 0.150
H 13.870
Mass
D 4.38 0.184
pV 0.273 0.0381
Rotational Period 9.600
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
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-Oct-2022
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
13.87 MPC-2023-12-04 MPC-2023-12-04 Phot
Period data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
9.60 Behrend LCDB Lightcurve