1999 HG9

1999HG9, 2000 RZ23, 2000RZ23, 96653, J99H09G, K00R23Z

All data for this body: [vot]

MPC data
Name (number) 1999 HG9 (96653)
a 2.37476
e 0.11976
i / sin(i) 5.7775 / 0.10067
q 2.09035
Q 2.65917
ω 35.0389
Node 209.8638
m 9.6570
n 0.2693
Epoch 2460800.5
nobs 2866
nopp 21
Years observed 1996-2025
rms 0.69
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.375
ep 0.134
sin(ip) 0.108
G 0.150
H 14.810
Mass
D 2.66 0.123
pV 0.390 0.1107
Value
Rotational Period
Period quality None
Spectral Class V
Spectral Class Score 11.819
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3748 0.1338 0.1079 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.65 0.126 0.126 Masiero 2011ApJ...741...68M NEATM
2.77 0.570 0.570 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.364 0.2183 0.2183 Masiero 2011ApJ...741...68M NEATM
0.399 0.1285 0.1285 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
14.81 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 V None None Movis NIR Popescu 2018A&A...617A..12P PHOT
U Popescu NIR Mansour 2020MNRAS.491.5966M SPEC+PHOT
V 1.000 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
V V 0.9699 0.9699 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT