1999 WN18

1999WN18, 1998 HB112, 1998HB112, 41210, J98HB2B, J99W18N

All data for this body: [vot]

MPC data
Name (number) 1999 WN18 (41210)
a 2.35128
e 0.25997
i / sin(i) 10.7612 / 0.18672
q 1.74001
Q 2.96255
ω 249.5451
Node 130.9415
m 211.1882
n 0.2734
Epoch 2460200.5
nobs 2039
nopp 20
Years observed 1991-2023
rms 0.68
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.351
ep 0.218
sin(ip) 0.180
Value Standard error
G 0.150
H 14.820
Mass
D 2.95 0.087
pV 0.359 0.0619
Rotational Period 2.232
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3508 0.2181 0.1803 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.65 0.410 0.410 Masiero 2012ApJ...759L...8M NEATM
2.96 0.089 0.089 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.350 0.0687 0.0687 Masiero 2011ApJ...741...68M NEATM
0.397 0.1430 0.1430 Masiero 2012ApJ...759L...8M 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
14.82 MPC-2023-12-04 MPC-2023-12-04 Phot
Period data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.23 Waszczak 2015AJ....150...75W Lightcurve