1998 HW122

1998HW122, 19486, 1982 YE4, 1982YE4, 2000 UB26, 2000UB26, J82Y04E, J98HC2W, K00U26B

All data for this body: [vot]

MPC data
Name (number) 1998 HW122 (19486)
a 2.76363
e 0.04193
i / sin(i) 9.6123 / 0.16698
q 2.64775
Q 2.87952
ω 35.4265
Node 89.5502
m 48.0804
n 0.2145
Epoch 2460800.5
nobs 5059
nopp 24
Years observed 1982-2025
rms 0.60
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.764
ep 0.072
sin(ip) 0.148
G 0.150
H 13.400
Mass
D 6.61 0.140
pV 0.159 0.0367
Value
Rotational Period 184.430
Period quality 2
Spectral Class S
Spectral Class Score 8.518
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7642 0.0723 0.1485 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.61 0.140 0.140 Masiero 2011ApJ...741...68M NEATM
8.79 3.400 3.400 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.132 0.1520 0.1520 Masiero 2012ApJ...759L...8M NEATM
0.161 0.0378 0.0378 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
13.40 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
184.437 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
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.47 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.9296 0.9296 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT