1997 XA9

1997XA9, 16845, 1990 QU14, 1990QU14, J90Q14U, J97X09A

All data for this body: [vot]

MPC data
Name (number) 1997 XA9 (16845)
a 2.90163
e 0.06466
i / sin(i) 2.9979 / 0.05230
q 2.71402
Q 3.08925
ω 310.1560
Node 128.5185
m 152.0513
n 0.1994
Epoch 2460200.5
nobs 2571
nopp 23
Years observed 1986-2023
rms 0.62
Best values
[raw, vot]

Value Standard error
Parent Koronis (158)
 
ap 2.901
ep 0.063
sin(ip) 0.037
Value Standard error
G 0.150
H 13.610
Mass
D 5.69 0.286
pV 0.261 0.0297
Rotational Period
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
158 Koronis 605 Koronis 0.3000 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.9009 0.0631 0.0367 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.69 0.286 0.286 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.261 0.0297 0.0297 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
13.61 MPC-2023-12-04 MPC-2023-12-04 Phot