Sichuan

02215, 1942 GO, 1942GO, 1950 XO, 1950XO, 1964 VX2, 1964VX2, 1978 WO12, 1978WO12, J42G00O, J50X00O, J64V02X, J78W12O

All data for this body: [vot]

MPC data
Name (number) Sichuan (2215)
a 2.79237
e 0.26191
i / sin(i) 10.7713 / 0.18689
q 2.06103
Q 3.52371
ω 333.6537
Node 71.0037
m 354.4989
n 0.2112
Epoch 2460800.5
nobs 7115
nopp 31
Years observed 1942-2025
rms 0.51
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.792
ep 0.238
sin(ip) 0.161
G 0.150
H 11.900
Mass
D 12.44 0.148
pV 0.237 0.0065
Value
Rotational Period 3.970
Period quality 3
Spectral Class S
Spectral Class Score 19.973
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7920 0.2376 0.1605 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
11.39 2.280 2.280 Ali-Lagoa 2018A&A...612A..85A NEATM
11.91 0.210 0.210 Usui 2011PASJ...63.1117U NEATM
12.78 1.280 1.280 Ali-Lagoa 2018A&A...612A..85A NEATM
12.92 0.215 0.215 Masiero 2011ApJ...741...68M NEATM
14.82 1.300 1.300 Tedesco 2002AJ....123.1056T STM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.140 0.0280 0.0280 Tedesco 2002AJ....123.1056T STM
0.234 0.0470 0.0470 Ali-Lagoa 2018A&A...612A..85A NEATM
0.242 0.0068 0.0068 Masiero 2011ApJ...741...68M NEATM
0.295 0.1180 0.1180 Ali-Lagoa 2018A&A...612A..85A 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
11.90 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
3.975 3 Synodic Stephens 2007MPBu...34...31S Lightcurve
3.975395 2 Sidereal Durech 2020A&A...643A..59D Model
3.97542 2 Sidereal Durech 2023A&A...675A..24D Model
3.9755 3 Synodic Behrend LCDB Lightcurve
3.97552 2 Synodic Pal 2020ApJS..247...26P Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
K S 0.4929 0.5540 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
LS 0.69 Bus VIS Carvano 2010A&A...510A..43C PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S Tholen VIS Xu 1995Icar..115....1X SPEC
S 0.582 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S 1.000000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC
S S 0.7469 0.5540 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT