Williamcooke

03894, 1978 EM4, 1978EM4, 1980 PQ2, 1980PQ2, 1980 RF3, 1980RF3, 1987 DY6, 1987DY6, 1989 WM6, 1989WM6, J78E04M, J80P02Q, J80R03F, J87D06Y, J89W06M

All data for this body: [vot]

MPC data
Name (number) Williamcooke (3894)
a 2.62698
e 0.17228
i / sin(i) 13.3554 / 0.23099
q 2.17440
Q 3.07957
ω 188.3779
Node 163.0412
m 30.6157
n 0.2315
Epoch 2460200.5
nobs 3871
nopp 27
Years observed 1978-2023
rms 0.50
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.626
ep 0.140
sin(ip) 0.219
Value Standard error
G 0.150
H 12.180
Mass
D 9.06 0.048
pV 0.356 0.0274
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6258 0.1399 0.2192 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]


Value Uncertainty up Uncertainty down Author Reference Method
7.95 0.710 0.710 Usui 2011PASJ...63.1117U NEATM
8.46 1.690 1.690 Ali-Lagoa 2018A&A...612A..85A NEATM
8.78 0.080 0.080 Masiero 2014ApJ...791..121M NEATM
8.86 0.380 0.380 Masiero 2012ApJ...759L...8M NEATM
9.24 0.062 0.062 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]


Value Uncertainty up Uncertainty down Author Reference Method
0.339 0.0698 0.0698 Masiero 2011ApJ...741...68M NEATM
0.357 0.0380 0.0380 Masiero 2012ApJ...759L...8M NEATM
0.360 0.0500 0.0500 Masiero 2014ApJ...791..121M NEATM
0.399 0.1600 0.1600 Ali-Lagoa 2018A&A...612A..85A 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
12.18 MPC-2023-12-04 MPC-2023-12-04 Phot