1989 ST9

1989ST9, 18342, 1999 FM14, 1999FM14, J89S09T, J99F14M

All data for this body: [vot]

MPC data
Name (number) 1989 ST9 (18342)
a 2.35003
e 0.23556
i / sin(i) 2.2720 / 0.03964
q 1.79646
Q 2.90359
ω 315.6417
Node 19.2956
m 167.0561
n 0.2736
Epoch 2460200.5
nobs 867
nopp 20
Years observed 1989-2023
rms 0.71
Best values
[raw, vot]

Value Standard error
Parent Nysa (44)
 
ap 2.351
ep 0.197
sin(ip) 0.037
Value Standard error
G 0.150
H 16.060
Mass
D 1.80 0.286
pV 0.261 0.0885
Rotational Period
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
44 Nysa 405 Nysa-Polana -0.5200 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3508 0.1973 0.0367 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
1.80 0.286 0.286 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.261 0.0885 0.0885 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
16.06 MPC-2023-12-04 MPC-2023-12-04 Phot