1999 AU

1999AU, 18744, 1986 RZ9, 1986RZ9, J86R09Z, J99A00U

All data for this body: [vot]

MPC data
Name (number) 1999 AU (18744)
a 2.35594
e 0.14694
i / sin(i) 12.7976 / 0.22151
q 2.00975
Q 2.70213
ω 281.8528
Node 310.3053
m 195.5703
n 0.2726
Epoch 2460200.5
nobs 3761
nopp 24
Years observed 1954-2023
rms 0.52
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.355
ep 0.169
sin(ip) 0.237
Value Standard error
G 0.150
H 13.910
Mass
D 8.32 0.037
pV 0.122 0.0011
Rotational Period 21.900
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3553 0.1692 0.2368 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
8.09 0.050 0.050 Masiero 2014ApJ...791..121M NEATM
8.43 2.050 2.050 Masiero 2020PSJ.....1....5M NEATM
8.58 0.054 0.054 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.112 0.0610 0.0610 Masiero 2020PSJ.....1....5M NEATM
0.122 0.0011 0.0011 Masiero 2011ApJ...741...68M NEATM
0.210 0.0200 0.0200 Masiero 2014ApJ...791..121M 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
13.91 MPC-2023-12-04 MPC-2023-12-04 Phot
Period data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
21.90 Behrend LCDB Lightcurve