1990 QJ9

1990QJ9, 16484, 1981 XN1, 1981XN1, 1994 LG3, 1994LG3, 1998 FL17, 1998FL17, 1999 LG23, 1999LG23, J81X01N, J90Q09J, J94L03G, J98F17L, J99L23G

All data for this body: [vot]

MPC data
Name (number) 1990 QJ9 (16484)
a 2.90805
e 0.01924
i / sin(i) 2.8835 / 0.05031
q 2.85210
Q 2.96400
ω 238.0103
Node 47.7824
m 47.9046
n 0.1987
Epoch 2460800.5
nobs 2257
nopp 25
Years observed 1981-2025
rms 0.72
Best values
[raw, vot]

Value Standard error
Parent Koronis (158)
 
ap 2.909
ep 0.037
sin(ip) 0.040
G 0.150
H 13.900
Mass
D 5.25 0.281
pV 0.232 0.0394
Value
Rotational Period 7.100
Period quality 2
Spectral Class S
Spectral Class Score 13.432
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 0.3400 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.9088 0.0366 0.0401 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.25 0.281 0.281 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.232 0.0394 0.0394 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
13.90 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
24.0 Synodic Molnar 2018ApJS..234...37M Lightcurve
7.16 2 Synodic Yeh 2020AJ....160...73Y Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.62 Bus VIS Carvano 2010A&A...510A..43C PHOT
S 0.766 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S 0.9327 0.9327 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT