1999 XS4

1999XS4, 92075, J99X04S

All data for this body: [vot]

MPC data
Name (number) 1999 XS4 (92075)
a 3.20617
e 0.11442
i / sin(i) 4.9641 / 0.08653
q 2.83933
Q 3.57300
ω 203.0360
Node 211.8021
m 163.2868
n 0.1717
Epoch 2460800.5
nobs 1165
nopp 20
Years observed 1999-2025
rms 0.80
Best values
[raw, vot]

Value Standard error
Parent Hygiea (10)
 
ap 3.201
ep 0.107
sin(ip) 0.096
G 0.150
H 14.980
Mass
D 5.69 0.091
pV 0.066 0.0081
Value
Rotational Period 1.000
Period quality
Spectral Class C
Spectral Class Score 12.336
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
10 Hygiea 0 Hygiea Novakovic 2019EPSC...13.1671N HCM
10 Hygiea 601 Hygiea Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.2009 0.1066 0.0959 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.69 0.091 0.091 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.066 0.0081 0.0081 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
14.98 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
1.0 Synodic Erasmus 2018ApJS..237...19E Lightcurve
1.0 Synodic Erasmus 2019ApJS..242...15E Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
B DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C 0.19 Bus VIS Carvano 2010A&A...510A..43C PHOT
C C 0.2837 0.2770 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C X 0.854000 0.145000 Bus-DeMeo VIS Erasmus 2019ApJS..242...15E PHOT
C X 0.855000 0.144000 Bus-DeMeo VIS Erasmus 2018ApJS..237...19E PHOT