1998 HK123

1998HK123, 1999 RO247, 1999RO247, 40011, J98HC3K, J99RO7O

All data for this body: [vot]

MPC data
Name (number) 1998 HK123 (40011)
a 2.56786
e 0.06699
i / sin(i) 13.4879 / 0.23324
q 2.39585
Q 2.73987
ω 14.5800
Node 185.7891
m 224.1474
n 0.2395
Epoch 2460800.5
nobs 1355
nopp 21
Years observed 1991-2025
rms 0.80
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.567
ep 0.114
sin(ip) 0.234
G 0.150
H 15.350
Mass
D 5.34 0.022
pV 0.060 0.0174
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 5.784
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5667 0.1143 0.2344 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.34 0.022 0.022 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.060 0.0174 0.0174 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
15.35 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
C 0.964 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT