2009 HE9

2009HE9, a2196, K09H09E

All data for this body: [vot]

MPC data
Name (number) 2009 HE9 (362196)
a 2.75490
e 0.27176
i / sin(i) 11.4351 / 0.19826
q 2.00623
Q 3.50356
ω 191.0937
Node 143.2801
m 99.2845
n 0.2155
Epoch 2460800.5
nobs 399
nopp 14
Years observed 2001-2025
rms 0.91
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.752
ep 0.258
sin(ip) 0.171
G 0.150
H 16.250
Mass
D 2.83 0.156
pV 0.073 0.0113
Value
Rotational Period 5.950
Period quality 2
Spectral Class C
Spectral Class Score 1.313
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7515 0.2582 0.1707 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.83 0.156 0.156 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.073 0.0113 0.0113 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
16.25 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
5.956 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C C 0.2189 0.2160 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D C 0.0180 0.2160 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT