1998 WJ18

1998WJ18, 1994 PP35, 1994PP35, 28185, J94P35P, J98W18J

All data for this body: [vot]

MPC data
Name (number) 1998 WJ18 (28185)
a 2.24793
e 0.09939
i / sin(i) 4.5007 / 0.07847
q 2.02450
Q 2.47136
ω 345.0564
Node 292.9177
m 81.3633
n 0.2924
Epoch 2460800.5
nobs 3082
nopp 21
Years observed 1994-2025
rms 0.71
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.248
ep 0.083
sin(ip) 0.085
G 0.150
H 14.460
Mass
D 3.75 0.055
pV 0.287 0.0415
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 5.682
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2484 0.0828 0.0850 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.75 0.055 0.055 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.287 0.0415 0.0415 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
14.46 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
Ds Ad None None Movis NIR Popescu 2018A&A...617A..12P PHOT
S 0.947 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT