1999 UM1

1999UM1, 42997, J99U01M

All data for this body: [vot]

MPC data
Name (number) 1999 UM1 (42997)
a 2.35672
e 0.15580
i / sin(i) 5.6025 / 0.09763
q 1.98955
Q 2.72390
ω 179.3538
Node 70.2453
m 321.0730
n 0.2724
Epoch 2460200.5
nobs 1527
nopp 21
Years observed 1991-2023
rms 0.68
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.357
ep 0.166
sin(ip) 0.082
Value Standard error
G 0.150
H 15.470
Mass
D 2.77 0.961
pV 0.191 0.0715
Rotational Period
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3571 0.1660 0.0817 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.77 0.961 0.961 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.191 0.0715 0.0715 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
15.47 MPC-2023-12-04 MPC-2023-12-04 Phot