1998JU

1994BL5, 21489, J94B05L, J98J00U

All data for this body: [vot]

MPC data
Name (number) 1998JU (21489)
Packed designation 21489
a 2.31031
e 0.13303
i / sin(i) 2.0539 / 0.03584
q 2.00296
Q 2.61766
ω 147.9685
Node 3.9009
m 323.2579
n 0.2807
Epoch 2459600.5
nobs 1491
nopp 18
Years observed 1994-2022
rms 0.67
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.311
ep 0.174
sin(ip) 0.035
Value Standard error
G 0.150
H 15.460
Mass
D 5.00 0.224
pV 0.058 0.0056
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3107 0.1738 0.0347 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Jan-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.39 1.450 1.450 Masiero 2021PSJ.....2..162M NEATM
4.82 1.380 1.380 Masiero 2021PSJ.....2..162M NEATM
5.01 0.231 0.231 Masiero 2011ApJ...741...68M NEATM
5.89 2.330 2.330 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.039 0.0580 0.0580 Masiero 2012ApJ...759L...8M NEATM
0.048 0.0190 0.0310 Masiero 2021PSJ.....2..162M NEATM
0.058 0.0250 0.0440 Masiero 2021PSJ.....2..162M NEATM
0.059 0.0058 0.0058 Masiero 2011ApJ...741...68M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2022-01-18 MPC-2022-01-18 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
15.46 MPC-2022-01-18 MPC-2022-01-18 Phot