1981 EH31

1981EH31, 43746, J81E31H

All data for this body: [vot]

MPC data
Name (number) 1981 EH31 (43746)
a 2.47312
e 0.20547
i / sin(i) 8.6212 / 0.14990
q 1.96498
Q 2.98126
ω 251.5585
Node 169.6631
m 224.0841
n 0.2534
Epoch 2460800.5
nobs 2174
nopp 20
Years observed 1979-2024
rms 0.66
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.474
ep 0.189
sin(ip) 0.153
G 0.150
H 15.470
Mass
D 2.34 0.304
pV 0.322 0.1000
Value
Rotational Period
Period quality None
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4742 0.1893 0.1530 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.34 0.304 0.304 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.322 0.1000 0.1000 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
15.47 MPC-2023-12-04 MPC-2023-12-04 Phot