1998 WT40

1998WT40, 1989 RR1, 1989RR1, 1989 TC11, 1989TC11, 2000 EY199, 2000EY199, 44493, J89R01R, J89T11C, J98W40T, K00EJ9Y

All data for this body: [vot]

MPC data
Name (number) 1998 WT40 (44493)
a 2.70161
e 0.16955
i / sin(i) 16.2811 / 0.28035
q 2.24356
Q 3.15966
ω 75.4445
Node 302.7065
m 2.1382
n 0.2220
Epoch 2460800.5
nobs 1836
nopp 21
Years observed 1989-2025
rms 0.73
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.702
ep 0.118
sin(ip) 0.301
G 0.150
H 14.270
Mass
D 6.48 0.119
pV 0.109 0.0171
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 4.722
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
729 Watsonia 0 Watsonia Novakovic 2019EPSC...13.1671N HCM
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7016 0.1180 0.3014 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.80 1.870 1.870 Masiero 2021PSJ.....2..162M NEATM
6.03 1.618 1.618 Masiero 2017AJ....154..168M NEATM
6.18 0.227 0.227 Masiero 2011ApJ...741...68M NEATM
6.60 0.140 0.140 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.087 0.0465 0.0465 Masiero 2017AJ....154..168M NEATM
0.093 0.0290 0.0290 Masiero 2012ApJ...759L...8M NEATM
0.113 0.0490 0.0860 Masiero 2021PSJ.....2..162M NEATM
0.128 0.0254 0.0254 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
14.27 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
D D 0.1030 0.1030 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S 0.787 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT