1999 XK31

1999XK31, 43112, J99X31K

All data for this body: [vot]

MPC data
Name (number) 1999 XK31 (43112)
a 2.97777
e 0.07137
i / sin(i) 10.6233 / 0.18435
q 2.76526
Q 3.19029
ω 298.1868
Node 133.2130
m 359.9600
n 0.1918
Epoch 2460800.5
nobs 2852
nopp 21
Years observed 1998-2025
rms 0.70
Best values
[raw, vot]

Value Standard error
Parent Eos (221)
 
ap 2.977
ep 0.063
sin(ip) 0.170
G 0.150
H 13.600
Mass
D 7.20 0.111
pV 0.196 0.0449
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 5.460
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
221 Eos 606 Eos -0.7700 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.9771 0.0626 0.1698 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
7.20 0.111 0.111 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.196 0.0449 0.0449 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
13.60 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 0.910 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT