1999 HX9

1999HX9, J2617, J99H09X

All data for this body: [vot]

MPC data
Name (number) 1999 HX9 (192617)
a 2.38540
e 0.12951
i / sin(i) 7.3922 / 0.12866
q 2.07647
Q 2.69432
ω 8.7122
Node 213.9436
m 12.3313
n 0.2675
Epoch 2460800.5
nobs 1025
nopp 17
Years observed 1999-2025
rms 0.78
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.385
ep 0.159
sin(ip) 0.136
G 0.150
H 16.340
Mass
D 3.20 0.085
pV 0.069 0.0054
Value
Rotational Period
Period quality None
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3850 0.1586 0.1358 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.03 0.123 0.123 Masiero 2011ApJ...741...68M NEATM
3.35 0.118 0.118 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.063 0.0074 0.0074 Masiero 2011ApJ...741...68M NEATM
0.076 0.0079 0.0079 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
16.34 MPC-2023-12-04 MPC-2023-12-04 Phot