1999 WX8

1999WX8, 1990 HD3, 1990HD3, 41204, J90H03D, J99W08X

All data for this body: [vot]

MPC data
Name (number) 1999 WX8 (41204)
a 3.18310
e 0.08722
i / sin(i) 17.1171 / 0.29433
q 2.90548
Q 3.46072
ω 66.2245
Node 82.9014
m 95.6161
n 0.1736
Epoch 2460800.5
nobs 2974
nopp 23
Years observed 1990-2025
rms 0.66
Best values
[raw, vot]

Value Standard error
Parent Ursula (375)
 
ap 3.179
ep 0.103
sin(ip) 0.279
G 0.150
H 12.870
Mass
D
pV
Value
Rotational Period 38.220
Period quality 2
Spectral Class None
Spectral Class Score
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
3.1787 0.1030 0.2794 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
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
12.87 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
38.227 2 Synodic Waszczak 2015AJ....150...75W Lightcurve