1998 XW4

1998XW4, 2000 GZ54, 2000GZ54, 28195, J98X04W, K00G54Z

All data for this body: [vot]

MPC data
Name (number) 1998 XW4 (28195)
a 2.42145
e 0.09295
i / sin(i) 2.7030 / 0.04716
q 2.19638
Q 2.64652
ω 347.0876
Node 23.6546
m 74.5391
n 0.2616
Epoch 2460800.5
nobs 2542
nopp 21
Years observed 1990-2025
rms 0.72
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.420
ep 0.061
sin(ip) 0.042
G 0.150
H 15.030
Mass
D 3.68 0.230
pV 0.172 0.0165
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 11.484
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4203 0.0613 0.0423 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.68 0.230 0.230 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.172 0.0165 0.0165 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
15.03 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
S S 0.5360 0.6810 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.8346 0.6810 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.63 Bus VIS Carvano 2010A&A...510A..43C PHOT