Josefhlavka

1998 QO4, 1998QO4, 21539, J98Q04O

All data for this body: [vot]

MPC data
Name (number) Josefhlavka (21539)
a 3.17958
e 0.02320
i / sin(i) 13.1801 / 0.22801
q 3.10580
Q 3.25336
ω 44.0256
Node 301.1574
m 251.5310
n 0.1738
Epoch 2460800.5
nobs 1833
nopp 23
Years observed 1995-2025
rms 0.75
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.179
ep 0.002
sin(ip) 0.247
G 0.150
H 13.720
Mass
D 12.05 0.133
pV 0.049 0.0109
Value
Rotational Period
Period quality None
Spectral Class Cgx
Spectral Class Score 1.000
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1789 0.0023 0.2472 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
12.05 0.133 0.133 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.049 0.0109 0.0109 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
13.72 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
Cgx Kl None None Movis NIR Popescu 2018A&A...617A..12P PHOT
X 0.17 Bus VIS Carvano 2010A&A...510A..43C PHOT