Shikoku

04223, 1948 VA, 1948VA, 1953 TG, 1953TG, 1958 TO, 1958TO, 1961 FA, 1961FA, 1969 XE, 1969XE, 1980 XF3, 1980XF3, 1988 JM, 1988JM, J48V00A, J53T00G, J58T00O, J61F00A, J69X00E, J80X03F, J88J00M

All data for this body: [vot]

MPC data
Name (number) Shikoku (4223)
a 3.00910
e 0.10552
i / sin(i) 9.2385 / 0.16054
q 2.69157
Q 3.32663
ω 83.2152
Node 269.1349
m 279.7140
n 0.1888
Epoch 2460800.5
nobs 6079
nopp 31
Years observed 1953-2025
rms 0.58
Best values
[raw, vot]

Value Standard error
Parent Eos (221)
 
ap 3.008
ep 0.070
sin(ip) 0.183
G 0.150
H 10.980
Mass
D 23.32 0.129
pV 0.173 0.0191
Value
Rotational Period 9.130
Period quality 3
Spectral Class L
Spectral Class Score 6.922
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
221 Eos 606 Eos -0.7400 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0080 0.0702 0.1830 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
22.25 0.730 0.730 Usui 2011PASJ...63.1117U NEATM
22.38 4.480 4.480 Ali-Lagoa 2018A&A...612A..85A NEATM
22.87 0.240 0.240 Masiero 2014ApJ...791..121M NEATM
22.99 0.610 0.610 Masiero 2012ApJ...759L...8M NEATM
23.61 0.162 0.162 Masiero 2011ApJ...741...68M NEATM
23.71 4.740 4.740 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.159 0.0640 0.0640 Ali-Lagoa 2018A&A...612A..85A NEATM
0.168 0.0333 0.0333 Masiero 2011ApJ...741...68M NEATM
0.175 0.0360 0.0360 Masiero 2012ApJ...759L...8M NEATM
0.178 0.0710 0.0710 Ali-Lagoa 2018A&A...612A..85A NEATM
0.180 0.0400 0.0400 Masiero 2014ApJ...791..121M 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
10.98 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
9.13294 2 Synodic Pal 2020ApJS..247...26P Lightcurve
9.134 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
9.137 3 Synodic Durkee 2011MPBu...38...40D Lightcurve
9.138 2+ Synodic Carbognani 2011MPBu...38...57C Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
Kl Xt None None Movis NIR Popescu 2018A&A...617A..12P PHOT
L 0.128 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
L 0.95 Bus VIS Carvano 2010A&A...510A..43C PHOT
L L 0.7090 0.7090 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT