1999UM20

1999UK56, F9429, J99U20M, J99U56K

All data for this body: [vot]

MPC data
Name (number) 1999UM20 (159429)
Packed designation F9429
a 2.79870
e 0.06532
i / sin(i) 1.7687 / 0.03087
q 2.61587
Q 2.98152
ω 313.4768
Node 101.6045
m 236.8372
n 0.2105
Epoch 2459600.5
nobs 490
nopp 16
Years observed 1999-2021
rms 0.76
Best values
[raw, vot]

Value Standard error
Parent Astrid (1128)
 
ap 2.800
ep 0.048
sin(ip) 0.011
Value Standard error
G 0.150
H 16.010
Mass
D 3.34 0.305
pV 0.069 0.0194
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
1128 Astrid 515 Astrid 0.7100 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.8001 0.0477 0.0114 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Jan-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.34 0.305 0.305 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.069 0.0194 0.0194 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
16.01 MPC-2022-01-18 MPC-2022-01-18 Phot