1998 WW18

1998WW18, 1998 WG4, 1998WG4, 2000 EW19, 2000EW19, 47048, J98W04G, J98W18W, K00E19W

All data for this body: [vot]

MPC data
Name (number) 1998 WW18 (47048)
a 2.73147
e 0.06470
i / sin(i) 6.3894 / 0.11128
q 2.55474
Q 2.90820
ω 79.7351
Node 241.7177
m 40.2688
n 0.2183
Epoch 2460800.5
nobs 3022
nopp 22
Years observed 1998-2025
rms 0.69
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.732
ep 0.046
sin(ip) 0.128
G 0.150
H 13.880
Mass
D 5.12 0.335
pV 0.244 0.0360
Value
Rotational Period 17.200
Period quality 2
Spectral Class D
Spectral Class Score 1.032
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7323 0.0464 0.1279 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.12 0.335 0.335 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.244 0.0360 0.0360 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
13.88 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
12.82438 2 Sidereal Durech 2018A&A...617A..57D Model
17.29 2 Synodic Warner 2019MPBu...46..166W Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
D 0.172 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT