Hardersen

08140, 1974 SM4, 1974SM4, 1979 YG5, 1979YG5, 1981 EO15, 1981EO15, J74S04M, J79Y05G, J81E15O

All data for this body: [vot]

MPC data
Name (number) Hardersen (8140)
a 2.73212
e 0.07045
i / sin(i) 6.8053 / 0.11850
q 2.53964
Q 2.92461
ω 194.9689
Node 220.6144
m 265.6968
n 0.2182
Epoch 2460200.5
nobs 4169
nopp 27
Years observed 1974-2023
rms 0.51
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.733
ep 0.053
sin(ip) 0.130
Value Standard error
G 0.150
H 13.550
Mass
D 8.15 0.087
pV 0.080 0.0199
Rotational Period 18.417
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7334 0.0535 0.1303 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
8.15 0.087 0.087 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.080 0.0199 0.0199 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
13.55 MPC-2023-12-04 MPC-2023-12-04 Phot
Period data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
18.42 Durech 2023A&A...675A..24D Model
18.42 Martikainen 2021A&A...649A..98M Model
18.42 Durech 2018A&A...617A..57D Model