1998 WK18

1998WK18, 1978 NK5, 1978NK5, 1988 TB4, 1988TB4, 2000 EY48, 2000EY48, 28186, J78N05K, J88T04B, J98W18K, K00E48Y

All data for this body: [vot]

MPC data
Name (number) 1998 WK18 (28186)
a 2.19850
e 0.18420
i / sin(i) 3.2342 / 0.05642
q 1.79354
Q 2.60346
ω 22.2074
Node 328.3238
m 94.2818
n 0.3024
Epoch 2460800.5
nobs 2437
nopp 23
Years observed 1988-2025
rms 0.72
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.198
ep 0.130
sin(ip) 0.059
G 0.150
H 15.230
Mass
D 2.67 0.436
pV 0.229 0.0613
Value
Rotational Period 9.650
Period quality 1
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.1979 0.1296 0.0593 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.58 0.561 0.561 Masiero 2011ApJ...741...68M NEATM
2.82 0.693 0.693 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.202 0.1074 0.1074 Masiero 2011ApJ...741...68M NEATM
0.242 0.0746 0.0746 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
15.23 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
9.656 1 Synodic Waszczak 2015AJ....150...75W Lightcurve