2009 WD44

2009WD44, K09W44D, W8835

All data for this body: [vot]

MPC data
Name (number) 2009 WD44 (328835)
a 3.11079
e 0.09947
i / sin(i) 15.3818 / 0.26525
q 2.80138
Q 3.42021
ω 143.3119
Node 246.4184
m 308.5073
n 0.1796
Epoch 2460800.5
nobs 495
nopp 14
Years observed 2003-2025
rms 0.80
Best values
[raw, vot]

Value Standard error
Parent Ursula (375)
 
ap 3.108
ep 0.085
sin(ip) 0.281
G 0.150
H 15.180
Mass
D 3.14 0.326
pV 0.197 0.0338
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 5.850
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
375 Ursula 0 Ursula Novakovic 2019EPSC...13.1671N HCM
375 Ursula 631 Ursula Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1076 0.0848 0.2814 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.14 0.326 0.326 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.197 0.0338 0.0338 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
15.18 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
S 0.975 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT