1999 XY209

1999XY209, 2001 FO74, 2001FO74, A3144, J99XK9Y, K01F74O

All data for this body: [vot]

MPC data
Name (number) 1999 XY209 (103144)
a 2.73650
e 0.05824
i / sin(i) 12.5592 / 0.21745
q 2.57713
Q 2.89587
ω 61.0167
Node 41.5333
m 206.1111
n 0.2177
Epoch 2460800.5
nobs 1797
nopp 20
Years observed 1999-2025
rms 0.72
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.736
ep 0.074
sin(ip) 0.208
G 0.150
H 14.450
Mass
D 3.26 0.371
pV 0.350 0.0845
Value
Rotational Period
Period quality None
Spectral Class L
Spectral Class Score 8.511
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7363 0.0739 0.2079 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.15 0.448 0.448 Masiero 2011ApJ...741...68M NEATM
3.49 0.662 0.662 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.332 0.0971 0.0971 Masiero 2011ApJ...741...68M NEATM
0.407 0.1718 0.1718 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
14.45 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
L DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
L 0.40 Bus VIS Carvano 2010A&A...510A..43C PHOT
L 0.568 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
L L 0.3838 0.3838 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT