1999 HX4

1999HX4, 91331, J99H04X

All data for this body: [vot]

MPC data
Name (number) 1999 HX4 (91331)
a 2.29473
e 0.12880
i / sin(i) 6.5370 / 0.11385
q 1.99917
Q 2.59028
ω 118.9235
Node 19.9125
m 219.8375
n 0.2835
Epoch 2460800.5
nobs 965
nopp 17
Years observed 1992-2025
rms 0.86
Best values
[raw, vot]

Value Standard error
Parent Flora (8)
 
ap 2.295
ep 0.171
sin(ip) 0.104
G 0.150
H 16.280
Mass
D
pV
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 1.067
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
298 Baptistina 0 Baptistina Novakovic 2019EPSC...13.1671N HCM
8 Flora 402 Flora 0.3100 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2951 0.1708 0.1043 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
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
16.28 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
Q 0.11 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.1779 0.1779 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT