1999 GD18

1999GD18, 16038, 1960 WD1, 1960WD1, 1981 UO18, 1981UO18, 1994 EH3, 1994EH3, J60W01D, J81U18O, J94E03H, J99G18D

All data for this body: [vot]

MPC data
Name (number) 1999 GD18 (16038)
a 3.02386
e 0.08315
i / sin(i) 11.5314 / 0.19991
q 2.77243
Q 3.27528
ω 21.4678
Node 49.4932
m 337.7293
n 0.1874
Epoch 2460200.5
nobs 3208
nopp 24
Years observed 1960-2023
rms 0.49
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.021
ep 0.072
sin(ip) 0.186
Value Standard error
G 0.150
H 12.410
Mass
D 12.40 0.166
pV 0.166 0.0201
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0209 0.0723 0.1863 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
12.06 0.231 0.231 Masiero 2011ApJ...741...68M NEATM
12.75 0.238 0.238 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.157 0.0273 0.0273 Masiero 2011ApJ...741...68M NEATM
0.176 0.0297 0.0297 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
12.41 MPC-2023-12-04 MPC-2023-12-04 Phot