Hiragagennai

08144, 1982 VY2, 1982VY2, 1986 PU2, 1986PU2, 1989 CQ8, 1989CQ8, J82V02Y, J86P02U, J89C08Q

All data for this body: [vot]

MPC data
Name (number) Hiragagennai (8144)
a 2.93153
e 0.04941
i / sin(i) 3.0173 / 0.05264
q 2.78667
Q 3.07639
ω 353.0257
Node 122.9621
m 107.9094
n 0.1964
Epoch 2460800.5
nobs 4601
nopp 31
Years observed 1982-2025
rms 0.70
Best values
[raw, vot]

Value Standard error
Parent Koronis (158)
 
ap 2.931
ep 0.072
sin(ip) 0.035
G 0.150
H 13.340
Mass
D 6.62 0.118
pV 0.245 0.0221
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 9.906
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
158 Koronis 0 Koronis Novakovic 2019EPSC...13.1671N HCM
158 Koronis 605 Koronis 0.6700 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.9308 0.0716 0.0353 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.61 0.119 0.119 Masiero 2011ApJ...741...68M NEATM
6.91 1.130 1.130 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.194 0.0560 0.0560 Masiero 2012ApJ...759L...8M NEATM
0.255 0.0241 0.0241 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
13.34 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 S 0.7350 0.5930 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9160 0.5930 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
V S 0.9482 0.5930 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT