1998 XB20

1998XB20, A1508, J98X20B

All data for this body: [vot]

MPC data
Name (number) 1998 XB20 (101508)
a 2.98018
e 0.20060
i / sin(i) 2.9845 / 0.05207
q 2.38237
Q 3.57799
ω 22.1218
Node 75.5824
m 23.4749
n 0.1916
Epoch 2460800.5
nobs 658
nopp 16
Years observed 1998-2025
rms 0.85
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.983
ep 0.201
sin(ip) 0.034
G 0.150
H 16.360
Mass
D 2.66 0.560
pV 0.075 0.0464
Value
Rotational Period
Period quality None
Spectral Class B
Spectral Class Score 1.991
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.9830 0.2012 0.0337 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.66 0.560 0.560 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.075 0.0464 0.0464 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
16.36 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
B B 0.3318 0.2120 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C B 0.0959 0.2120 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
V B 0.1599 0.2120 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT