1998 UM18

1998UM18, 13782, 1989 EP3, 1989EP3, J89E03P, J98U18M

All data for this body: [vot]

MPC data
Name (number) 1998 UM18 (13782)
a 5.18922
e 0.13454
i / sin(i) 28.5873 / 0.47850
q 4.49106
Q 5.88737
ω 233.2281
Node 150.1519
m 77.6445
n 0.0834
Epoch 2460200.5
nobs 1692
nopp 25
Years observed 1989-2023
rms 0.68
Best values
[raw, vot]

Value Standard error
Parent
 
ap
ep
sin(ip)
Value Standard error
G 0.150
H 11.590
Mass
D 25.55 0.253
pV 0.083 0.0094
Rotational Period
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
24.97 0.290 0.290 Grav 2012ApJ...759...49G NEATM
27.41 0.520 0.520 Grav 2011ApJ...742...40G NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.078 0.0150 0.0150 Grav 2011ApJ...742...40G NEATM
0.086 0.0120 0.0120 Grav 2012ApJ...759...49G 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
11.59 MPC-2023-12-04 MPC-2023-12-04 Phot