1999 XW99

1999XW99, A3006, J99X99W

All data for this body: [vot]

MPC data
Name (number) 1999 XW99 (103006)
a 2.72812
e 0.16028
i / sin(i) 10.1658 / 0.17650
q 2.29086
Q 3.16538
ω 350.8920
Node 74.6842
m 244.1896
n 0.2187
Epoch 2460800.5
nobs 1391
nopp 19
Years observed 1999-2025
rms 0.78
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.727
ep 0.148
sin(ip) 0.155
G 0.150
H 14.740
Mass
D 4.12 1.091
pV 0.181 0.1460
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 14.030
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7269 0.1484 0.1546 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.12 1.091 1.091 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.181 0.1460 0.1460 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
14.74 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 DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.44 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.8934 0.9310 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9650 0.9310 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT