Shimaken

09231, 1976 SX9, 1976SX9, 1981 AZ2, 1981AZ2, 1991 EO8, 1991EO8, 1995 SL9, 1995SL9, 1997 BB2, 1997BB2, J76S09X, J81A02Z, J91E08O, J95S09L, J97B02B

All data for this body: [vot]

MPC data
Name (number) Shimaken (9231)
a 2.15799
e 0.13299
i / sin(i) 3.1315 / 0.05463
q 1.87100
Q 2.44498
ω 295.7405
Node 1.6105
m 170.1844
n 0.3109
Epoch 2460800.5
nobs 3340
nopp 24
Years observed 1976-2025
rms 0.68
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.157
ep 0.085
sin(ip) 0.051
G 0.150
H 14.410
Mass
D 3.77 0.082
pV 0.285 0.0809
Value
Rotational Period 10.910
Period quality 3
Spectral Class S
Spectral Class Score 5.964
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.1574 0.0853 0.0512 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.77 0.082 0.082 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.285 0.0809 0.0809 Masiero 2011ApJ...741...68M 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
14.41 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
10.917 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
10.917 3 Synodic Warner 2013MPBu...40..137W Lightcurve
10.91881 2 Sidereal Durech 2020A&A...643A..59D Model
10.919 2 Sidereal Durech 2023A&A...675A..24D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S 0.994 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT