1998 HD123

1998HD123, 1978 CU, 1978CU, 1999 RP142, 1999RP142, 44155, J78C00U, J98HC3D, J99RE2P

All data for this body: [vot]

MPC data
Name (number) 1998 HD123 (44155)
a 2.19957
e 0.09314
i / sin(i) 4.8407 / 0.08439
q 1.99471
Q 2.40444
ω 9.8933
Node 139.3913
m 163.6798
n 0.3021
Epoch 2460800.5
nobs 2681
nopp 21
Years observed 1978-2025
rms 0.71
Best values
[raw, vot]

Value Standard error
Parent Flora (8)
 
ap 2.200
ep 0.160
sin(ip) 0.084
G 0.150
H 15.270
Mass
D 2.29 0.577
pV 0.369 0.2733
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 12.048
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
8 Flora 402 Flora 0.0000 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.1996 0.1596 0.0842 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.29 0.577 0.577 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.369 0.2733 0.2733 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
15.27 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 DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.61 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.5379 0.7680 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9334 0.7680 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT