1989 WG4

1989WG4, 09031, 1994 EM3, 1994EM3, J89W04G, J94E03M

All data for this body: [vot]

MPC data
Name (number) 1989 WG4 (9031)
a 2.19428
e 0.08963
i / sin(i) 5.8597 / 0.10209
q 1.99761
Q 2.39096
ω 321.6360
Node 103.5161
m 314.0501
n 0.3032
Epoch 2460800.5
nobs 3495
nopp 24
Years observed 1989-2025
rms 0.69
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.195
ep 0.124
sin(ip) 0.100
G 0.150
H 14.340
Mass
D 3.12 0.143
pV 0.499 0.0359
Value
Rotational Period
Period quality None
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.1946 0.1238 0.1003 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.12 0.143 0.143 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.499 0.0359 0.0359 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
14.34 MPC-2023-12-04 MPC-2023-12-04 Phot