Helewalda

01845, 1931VC1, 1954GG, 1971OR, 1971QX2, 1972UC, J31V01C, J54G00G, J71O00R, J71Q02X, J72U00C

All data for this body: [vot]

MPC data
Name (number) Helewalda (1845)
Packed designation 01845
a 2.96764
e 0.05630
i / sin(i) 10.7204 / 0.18602
q 2.80056
Q 3.13473
ω 323.7570
Node 142.5901
m 159.7672
n 0.1928
Epoch 2459600.5
nobs 3515
nopp 34
Years observed 1931-2021
rms 0.51
Best values
[raw, vot]

Value Standard error
Parent Eos (221)
 
ap 2.970
ep 0.073
sin(ip) 0.173
Value Standard error
G 0.150
H 11.310
Mass
D 20.36 0.137
pV 0.130 0.0088
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
221 Eos 606 Eos -2.1800 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.9702 0.0734 0.1729 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Jan-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
19.93 0.380 0.380 Masiero 2014ApJ...791..121M NEATM
20.43 0.147 0.147 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.129 0.0185 0.0185 Masiero 2011ApJ...741...68M NEATM
0.130 0.0100 0.0100 Masiero 2014ApJ...791..121M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2022-01-18 MPC-2022-01-18 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
11.31 MPC-2022-01-18 MPC-2022-01-18 Phot