1997 XA9

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

All data for this body: [vot]

MPC data
Name (number) 1997 XA9 (16845)
a 2.90008
e 0.06502
i / sin(i) 2.9986 / 0.05231
q 2.71151
Q 3.08865
ω 310.5614
Node 128.5115
m 271.3159
n 0.1996
Epoch 2460800.5
nobs 2763
nopp 25
Years observed 1986-2025
rms 0.69
Best values
[raw, vot]

Value Standard error
Parent Koronis (158)
 
ap 2.901
ep 0.063
sin(ip) 0.037
G 0.150
H 13.590
Mass
D 5.69 0.286
pV 0.261 0.0297
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 4.200
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
158 Koronis 0 Koronis Novakovic 2019EPSC...13.1671N HCM
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-Nov-2024
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
13.59 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S 0.700 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT