1981 EX31

1981EX31, 43747, J81E31X

All data for this body: [vot]

MPC data
Name (number) 1981 EX31 (43747)
a 2.81623
e 0.12888
i / sin(i) 5.5529 / 0.09677
q 2.45327
Q 3.17919
ω 206.1460
Node 176.5561
m 152.2167
n 0.2085
Epoch 2460200.5
nobs 2511
nopp 21
Years observed 1981-2023
rms 0.59
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.815
ep 0.097
sin(ip) 0.095
Value Standard error
G 0.150
H 13.920
Mass
D 5.58 0.154
pV 0.220 0.0238
Rotational Period
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.8154 0.0965 0.0953 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.55 0.174 0.174 Masiero 2011ApJ...741...68M NEATM
5.67 0.330 0.330 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.219 0.0250 0.0250 Masiero 2011ApJ...741...68M NEATM
0.228 0.0785 0.0785 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
13.92 MPC-2023-12-04 MPC-2023-12-04 Phot