1998 HC123

1998HC123, 2000 QW194, 2000QW194, 37977, J98HC3C, K00QJ4W

All data for this body: [vot]

MPC data
Name (number) 1998 HC123 (37977)
a 3.13561
e 0.19295
i / sin(i) 20.1766 / 0.34492
q 2.53057
Q 3.74064
ω 181.9418
Node 204.5199
m 156.2045
n 0.1775
Epoch 2460800.5
nobs 3573
nopp 23
Years observed 1998-2025
rms 0.67
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.143
ep 0.194
sin(ip) 0.333
G 0.150
H 13.140
Mass
D 14.66 0.863
pV 0.036 0.0092
Value
Rotational Period 251.240
Period quality 2
Spectral Class D
Spectral Class Score 19.112
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1434 0.1937 0.3332 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
14.42 1.010 1.010 Usui 2011PASJ...63.1117U NEATM
14.62 3.090 3.090 Masiero 2012ApJ...759L...8M NEATM
14.86 2.970 2.970 Ali-Lagoa 2018A&A...612A..85A NEATM
15.38 4.250 4.250 Masiero 2020PSJ.....1....5M NEATM
15.73 5.096 5.096 Masiero 2017AJ....154..168M NEATM
17.47 4.443 4.443 Masiero 2017AJ....154..168M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.020 0.0145 0.0145 Masiero 2017AJ....154..168M NEATM
0.035 0.0196 0.0196 Masiero 2017AJ....154..168M NEATM
0.052 0.0210 0.0210 Masiero 2012ApJ...759L...8M NEATM
0.055 0.0220 0.0220 Ali-Lagoa 2018A&A...612A..85A NEATM
0.073 0.0740 0.0740 Masiero 2020PSJ.....1....5M 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
13.14 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
251.246 2 Synodic Pal 2020ApJS..247...26P Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
D DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
D 0.91 Bus VIS Carvano 2010A&A...510A..43C PHOT
D D 0.1426 0.3880 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D D 0.1526 0.3880 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D D 0.2281 0.3880 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D D 0.4915 0.3880 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D D 0.7341 0.3880 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D D 0.7997 0.3880 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT