Onken

12868, 1987 QC11, 1987QC11, 1992 KT, 1992KT, 1998 MZ7, 1998MZ7, J87Q11C, J92K00T, J98M07Z

All data for this body: [vot]

MPC data
Name (number) Onken (12868)
a 3.11057
e 0.28546
i / sin(i) 14.1466 / 0.24440
q 2.22262
Q 3.99852
ω 92.1910
Node 246.7734
m 312.7830
n 0.1797
Epoch 2460800.5
nobs 3790
nopp 25
Years observed 1987-2025
rms 0.61
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.106
ep 0.229
sin(ip) 0.288
G 0.150
H 12.940
Mass
D
pV
Value
Rotational Period 115.000
Period quality 2
Spectral Class S
Spectral Class Score 5.790
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1062 0.2294 0.2878 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
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
12.94 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
115.0 2 Synodic Durkee 2010MPBu...37...18D Lightcurve
119.239 2 Synodic Pal 2020ApJS..247...26P Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
D D 0.6583 0.6583 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S 0.965 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT