1998 XX20

1998XX20, 1987 QE8, 1987QE8, 47059, J87Q08E, J98X20X

All data for this body: [vot]

MPC data
Name (number) 1998 XX20 (47059)
a 2.85265
e 0.19326
i / sin(i) 12.1022 / 0.20966
q 2.30135
Q 3.40395
ω 61.9334
Node 282.5151
m 275.5999
n 0.2046
Epoch 2460800.5
nobs 2359
nopp 22
Years observed 1987-2025
rms 0.73
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.852
ep 0.112
sin(ip) 0.232
G 0.150
H 13.790
Mass
D 6.14 0.514
pV 0.158 0.0419
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 1.000
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.8522 0.1117 0.2322 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.81 1.128 1.128 Masiero 2011ApJ...741...68M NEATM
6.49 0.578 0.578 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.139 0.0459 0.0459 Masiero 2011ApJ...741...68M NEATM
0.253 0.1027 0.1027 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
13.79 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 None None Movis NIR Popescu 2018A&A...617A..12P PHOT