1998 HC120

1998HC120, 11186, 1977 DO, 1977DO, 1987 QS2, 1987QS2, J77D00O, J87Q02S, J98HC0C

All data for this body: [vot]

MPC data
Name (number) 1998 HC120 (11186)
a 2.54759
e 0.15900
i / sin(i) 13.7897 / 0.23836
q 2.14252
Q 2.95266
ω 289.5959
Node 146.1304
m 0.4872
n 0.2424
Epoch 2460800.5
nobs 8079
nopp 24
Years observed 1977-2025
rms 0.43
Best values
[raw, vot]

Value Standard error
Parent Eunomia (15)
 
ap 2.548
ep 0.156
sin(ip) 0.234
G 0.150
H 13.640
Mass
D 5.50 0.136
pV 0.308 0.0281
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 20.091
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
15 Eunomia 0 Eunomia Novakovic 2019EPSC...13.1671N HCM
15 Eunomia 502 Eunomia -1.1400 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5480 0.1558 0.2339 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.46 0.164 0.164 Masiero 2011ApJ...741...68M NEATM
5.57 0.242 0.242 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.298 0.0633 0.0633 Masiero 2011ApJ...741...68M NEATM
0.310 0.0314 0.0314 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
13.64 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 0.814 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S 0.90 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.9354 0.9500 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9657 0.9500 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT