1999 XW123

1999XW123, 1998 QQ66, 1998QQ66, 43161, J98Q66Q, J99XC3W

All data for this body: [vot]

MPC data
Name (number) 1999 XW123 (43161)
a 2.68848
e 0.11109
i / sin(i) 11.3642 / 0.19705
q 2.38983
Q 2.98713
ω 259.7929
Node 271.1454
m 172.6631
n 0.2236
Epoch 2460800.5
nobs 3092
nopp 22
Years observed 1998-2025
rms 0.61
Best values
[raw, vot]

Value Standard error
Parent Eunomia (15)
 
ap 2.689
ep 0.142
sin(ip) 0.220
G 0.150
H 14.130
Mass
D 4.46 0.165
pV 0.323 0.0391
Value
Rotational Period 122.700
Period quality 2
Spectral Class S
Spectral Class Score 9.013
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
15 Eunomia 0 Eunomia Novakovic 2019EPSC...13.1671N HCM
15 Eunomia 502 Eunomia 0.4300 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6895 0.1416 0.2195 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.42 0.203 0.203 Masiero 2011ApJ...741...68M NEATM
4.54 0.282 0.282 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.311 0.0655 0.0655 Masiero 2011ApJ...741...68M NEATM
0.329 0.0487 0.0487 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
14.13 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
122.72 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 DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.51 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.9989 0.9989 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT