1999 HK9

1999HK9, 2001 QZ173, 2001QZ173, 49638, J99H09K, K01QH3Z

All data for this body: [vot]

MPC data
Name (number) 1999 HK9 (49638)
a 3.03873
e 0.08736
i / sin(i) 9.1072 / 0.15828
q 2.77328
Q 3.30419
ω 262.7332
Node 210.0185
m 53.9871
n 0.1861
Epoch 2460800.5
nobs 3268
nopp 22
Years observed 1994-2025
rms 0.67
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.038
ep 0.104
sin(ip) 0.170
G 0.150
H 13.800
Mass
D 11.24 0.220
pV 0.046 0.0045
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 4.008
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0381 0.1036 0.1701 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
11.24 0.222 0.222 Masiero 2011ApJ...741...68M NEATM
11.52 1.660 1.660 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.046 0.0046 0.0046 Masiero 2011ApJ...741...68M NEATM
0.048 0.0180 0.0180 Masiero 2012ApJ...759L...8M 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
13.80 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 0.668 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
U DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT