Helga

00522, 1902 WB, 1902WB, 1904 AF, 1904AF, 1936 QP, 1936QP, J02W00B, J04A00F, J36Q00P

All data for this body: [vot]

MPC data
Name (number) Helga (522)
a 3.62844
e 0.08658
i / sin(i) 4.4188 / 0.07705
q 3.31430
Q 3.94259
ω 249.1074
Node 116.5500
m 208.6914
n 0.1426
Epoch 2460200.5
nobs 4942
nopp 66
Years observed 1904-2023
rms 0.57
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.630
ep 0.038
sin(ip) 0.058
Value Standard error
G 0.150
H 9.080
Mass
D 100.18 1.102
pV 0.039 0.0023
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.6300 0.0385 0.0583 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
100.76 1.230 1.230 Usui 2011PASJ...63.1117U NEATM
101.22 3.500 3.500 Tedesco 2002AJ....123.1056T STM
104.42 7.747 7.747 Ryan&Woodward 2010AJ....140..933R IRAS-STM
105.56 21.110 21.110 Ali-Lagoa 2018A&A...612A..85A NEATM
107.28 9.370 9.370 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
108.37 10.840 10.840 Ali-Lagoa 2018A&A...612A..85A NEATM
83.70 4.850 4.850 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.036 0.0060 0.0060 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.037 0.0055 0.0055 Ryan&Woodward 2010AJ....140..933R IRAS-STM
0.039 0.0030 0.0030 Tedesco 2002AJ....123.1056T STM
0.041 0.0080 0.0080 Ali-Lagoa 2018A&A...612A..85A NEATM
0.043 0.0170 0.0170 Ali-Lagoa 2018A&A...612A..85A NEATM
0.057 0.0133 0.0133 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
9.08 MPC-2023-12-04 MPC-2023-12-04 Phot