West

02022, 1938 CK, 1938CK, 1949 TA, 1949TA, 1973 AP, 1973AP, J38C00K, J49T00A, J73A00P

All data for this body: [vot]

MPC data
Name (number) West (2022)
a 2.70594
e 0.11647
i / sin(i) 5.6551 / 0.09854
q 2.39079
Q 3.02109
ω 38.5629
Node 2.2614
m 320.0229
n 0.2214
Epoch 2460800.5
nobs 10081
nopp 33
Years observed 1938-2025
rms 0.44
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.706
ep 0.085
sin(ip) 0.100
G 0.150
H 11.880
Mass
D 12.83 0.122
pV 0.174 0.0182
Value
Rotational Period 14.100
Period quality 3-
Spectral Class S
Spectral Class Score 23.098
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7063 0.0847 0.1003 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
11.04 0.830 0.830 Usui 2011PASJ...63.1117U NEATM
11.68 2.340 2.340 Ali-Lagoa 2018A&A...612A..85A NEATM
12.63 0.340 0.340 Masiero 2014ApJ...791..121M NEATM
12.92 0.133 0.133 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.168 0.0207 0.0207 Masiero 2011ApJ...741...68M NEATM
0.180 0.0400 0.0400 Masiero 2014ApJ...791..121M NEATM
0.305 0.1220 0.1220 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
11.88 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
14.1332 2 Synodic Pal 2020ApJS..247...26P Lightcurve
14.1385 3- Synodic Haro 2018MPBu...45..233H Lightcurve
14.14 3- Synodic Franco 2017MPBu...44...93F Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
A S 0.6436 0.6760 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
K 0.539 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S Bus VIS Bus 2002Icar..158..146B SPEC
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.85 Bus VIS Carvano 2010A&A...510A..43C PHOT
S 0.990000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC
S S 0.7171 0.6760 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.8576 0.6760 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT