1999 UA1

1999UA1, 40991, J99U01A

All data for this body: [vot]

MPC data
Name (number) 1999 UA1 (40991)
a 2.42763
e 0.24951
i / sin(i) 7.5312 / 0.13107
q 1.82192
Q 3.03335
ω 298.8549
Node 34.0051
m 150.1077
n 0.2606
Epoch 2460200.5
nobs 1399
nopp 18
Years observed 1998-2023
rms 0.69
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.428
ep 0.209
sin(ip) 0.125
Value Standard error
G 0.150
H 15.280
Mass
D 2.10 0.358
pV 0.440 0.1750
Rotational Period
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4283 0.2095 0.1249 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.10 0.358 0.358 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.440 0.1750 0.1750 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
15.28 MPC-2023-12-04 MPC-2023-12-04 Phot