1999 XK129

1999XK129, 71088, J99XC9K

All data for this body: [vot]

MPC data
Name (number) 1999 XK129 (71088)
a 2.69031
e 0.01540
i / sin(i) 7.2338 / 0.12592
q 2.64888
Q 2.73174
ω 75.7621
Node 357.6264
m 269.1661
n 0.2234
Epoch 2460800.5
nobs 1371
nopp 21
Years observed 1998-2025
rms 0.82
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.691
ep 0.041
sin(ip) 0.129
G 0.150
H 15.010
Mass
D 3.07 0.605
pV 0.171 0.0805
Value
Rotational Period
Period quality None
Spectral Class X
Spectral Class Score 0.935
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6909 0.0410 0.1291 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.07 0.605 0.605 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.171 0.0805 0.0805 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
15.01 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 X 0.1113 0.0970 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X X 0.1559 0.0970 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT