1999 UG15

1999UG15, 1991 JU4, 1991JU4, 41009, J91J04U, J99U15G

All data for this body: [vot]

MPC data
Name (number) 1999 UG15 (41009)
a 3.14151
e 0.14662
i / sin(i) 17.8209 / 0.30604
q 2.68089
Q 3.60214
ω 333.4568
Node 207.1879
m 69.0853
n 0.1770
Epoch 2460800.5
nobs 1926
nopp 21
Years observed 1991-2025
rms 0.74
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.143
ep 0.188
sin(ip) 0.306
G 0.150
H 13.960
Mass
D 9.25 0.132
pV 0.069 0.0103
Value
Rotational Period 2.000
Period quality
Spectral Class X
Spectral Class Score 8.616
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1432 0.1883 0.3062 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
11.83 3.740 3.740 Masiero 2021PSJ.....2..162M NEATM
12.57 4.760 4.760 Masiero 2021PSJ.....2..162M NEATM
9.25 0.132 0.132 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.031 0.0190 0.0510 Masiero 2021PSJ.....2..162M NEATM
0.035 0.0160 0.0310 Masiero 2021PSJ.....2..162M NEATM
0.082 0.0121 0.0121 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
13.96 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
2.02 Synodic Erasmus 2018ApJS..237...19E Lightcurve
2.02 Synodic Erasmus 2019ApJS..242...15E Lightcurve
9.6229 2 Sidereal Durech 2023A&A...675A..24D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
X C 0.714000 0.177000 Bus-DeMeo VIS Erasmus 2018ApJS..237...19E PHOT
X C 0.722000 0.173000 Bus-DeMeo VIS Erasmus 2019ApJS..242...15E PHOT