1998 XJ64

1998XJ64, 1991 SK4, 1991SK4, 2000 EK83, 2000EK83, 28211, J91S04K, J98X64J, K00E83K

All data for this body: [vot]

MPC data
Name (number) 1998 XJ64 (28211)
a 2.23896
e 0.25005
i / sin(i) 6.4195 / 0.11181
q 1.67912
Q 2.79880
ω 273.6231
Node 70.5904
m 12.9086
n 0.2942
Epoch 2460800.5
nobs 3191
nopp 21
Years observed 1991-2025
rms 0.64
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.239
ep 0.192
sin(ip) 0.101
G 0.150
H 15.060
Mass
D 2.88 0.383
pV 0.369 0.1162
Value
Rotational Period 2.600
Period quality 2
Spectral Class S
Spectral Class Score 1.290
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2388 0.1921 0.1009 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.88 0.383 0.383 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.369 0.1162 0.1162 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
15.06 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
2.59999 2 Synodic Pal 2020ApJS..247...26P Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S 0.215 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT