1990 QX4

1990QX4, 19154, 1999 JK1, 1999JK1, J90Q04X, J99J01K

All data for this body: [vot]

MPC data
Name (number) 1990 QX4 (19154)
a 2.18259
e 0.18286
i / sin(i) 5.1974 / 0.09059
q 1.78349
Q 2.58169
ω 289.2377
Node 46.8634
m 89.9877
n 0.3057
Epoch 2460200.5
nobs 1991
nopp 20
Years observed 1990-2023
rms 0.63
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.182
ep 0.117
sin(ip) 0.082
Value Standard error
G 0.150
H 15.140
Mass
D 2.69 0.575
pV 0.245 0.0947
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.1821 0.1174 0.0817 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.69 0.575 0.575 Masiero 2017AJ....154..168M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.245 0.0947 0.0947 Masiero 2017AJ....154..168M 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
15.14 MPC-2023-12-04 MPC-2023-12-04 Phot