Orbit Fit and Astrometric record for 13SL106

The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory. Take special note that while the original Bernstein software works with barycentric coordinates, we convert these results into a heliocentric coordinate system.

# Object: 13SL106   
# Created Mon Dec  6 02:11:59 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     16 observations of     16
# Arc:   7.91y
# First observation: 2013/09/10
#  Last observation: 2021/08/08
# Chi-squared of fit:     4.49 DOF:     26 RMS:  0.09
# Min/Max residuals:    -0.27    0.16
# Exact a, adot, b, bdot, g, gdot:
  1.510412E-05  2.117288E-02  2.071820E-06  2.253024E-03  2.272136E-02 -4.242126E-03
# Covariance matrix:
  3.1606E-13 -1.0350E-13  1.2568E-14 -5.4927E-15  4.1001E-13 -2.5509E-13
 -1.0350E-13  1.8646E-13 -7.3827E-15  1.7525E-14 -7.5025E-14  9.7319E-13
  1.2568E-14 -7.3827E-15  1.5598E-13 -2.3016E-14  3.0985E-14 -2.6394E-14
 -5.4927E-15  1.7525E-14 -2.3016E-14  9.4570E-15  5.7093E-17  9.9070E-14
  4.1001E-13 -7.5025E-14  3.0985E-14  5.7093E-17  1.1686E-12  1.5416E-13
 -2.5509E-13  9.7319E-13 -2.6394E-14  9.9070E-14  1.5416E-13  5.5762E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    8.579600  -20.007353   -0.126530    0.149244   -0.988682  2456545.573368
# Heliocentric elements and errors
Epoch:              2456546.5000  =  2013/09/11
Mean Anomaly:          292.53829 +/-     0.031
Argument of Peri:      144.61737 +/-     0.044
Long of Asc Node:      286.09325 +/-     0.001
Inclination:            10.32343 +/-     0.000
Eccentricity:         0.19886681 +/-    0.0001
Semi-Major Axis:     46.83479248 +/-    0.0098
Time of Perihelion: 2478484.9603 +/-      31.6
Perihelion:          37.52090669 +/-    0.0095
Aphelion:            56.14867826 +/-    0.0129
Period (y)              320.5244 +/-      0.10
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           41.87527454 +/-    0.0019
Ecliptic Y          -15.10971085 +/-    0.0007
Ecliptic Z            6.56586169 +/-    0.0003
Ecliptic XDOT         0.00035372 +/-    0.0000
Ecliptic YDOT         0.00258292 +/-    0.0000
Ecliptic ZDOT         0.00019233 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.99960170 +/-    0.0018
Geocenter to KBO     44.01161608 +/-    0.0021
# Hcoef:  6.93

The following table shows the complete astrometric record for 13SL106. The first three columns show the date of observation. The next six columns are RA and DEC. The next column (when provided) is the observed magnitude and filter. The next column is the object name (13SL106) followed by the observatory code and reference code for the source of the astrometry.

2013 09  10.07259  22 33 12.131  +00 07 54.45  23.9g 13SL106   W84  C~55Nk      
2013 09  29.16983  22 31 57.55   -00 00 23.9   23.4r 13SL106   W84  C~3clG      
2013 09  29.17685  22 31 57.52   -00 00 24.2   23.3i 13SL106   W84  C~3clG      
2013 09  30.07173  22 31 54.34   -00 00 47.6   23.3r 13SL106   W84  C~3clG      
2013 09  30.07475  22 31 54.32   -00 00 47.5   22.8i 13SL106   W84  C~3clG      
2013 10  10.10198  22 31 21.343  -00 05 03.04  23.3r 13SL106   W84  C~55Nk      
2013 10  11.08899  22 31 18.37   -00 05 27.5   22.8z 13SL106   W84  C~3clG      
2013 10  12.036030 22 31 15.61   -00 05 50.6   22.8i 13SL106   W84  C~55Nk      
2013 11  23.05509  22 30 17.07   -00 18 24.9   23.4r 13SL106   W84  C~3clG      
2016 08  25.22778  22 47 22.33   +01 58 31.4   23.3r 13SL106   W84  C~3clG      
2016 08  26.21574  22 47 18.14   +01 58 09.3   24.0r 13SL106   W84  C~3clG      
2020 09  21.144810 23 03 29.238  +04 09 44.43  23.1G 13SL106   G37  C~49wW      
2020 09  21.187990 23 03 29.055  +04 09 43.13        13SL106   G37  C~49wW      
2021 08  08.328910 23 11 09.503  +05 02 25.52  23.8G 13SL106   G37  C~4xRB      
2021 08  08.375630 23 11 09.329  +05 02 24.93        13SL106   G37  C~4xRB      
2021 08  08.423920 23 11 09.156  +05 02 24.28        13SL106   G37  C~4xRB      

The following table shows the residuals to the orbit fit. The first coumn is the point number. The second column is the time, in years, measured from the first observation. The third and fifth columns are the regularized positions used in the orbit fit. The fourth and sixth columns are the residuals, in arc seconds, for RA and Dec respectively.

     1   0.0000      0.00    -0.03       0.00    -0.12
     2   0.0523      0.00     0.16       0.00     0.08
     3   0.0523      0.00     0.09       0.00    -0.03
     4   0.0548      0.00     0.02       0.00    -0.12
     5   0.0548      0.00    -0.12       0.00     0.06
     6   0.0822      0.00     0.05       0.00     0.05
     7   0.0849      0.00    -0.27       0.00    -0.04
     8   0.0875      0.00    -0.04       0.00     0.07
     9   0.2026      0.00     0.15       0.00     0.14
    10   2.9573      0.00     0.15       0.00    -0.11
    11   2.9600      0.00    -0.09       0.00    -0.02
    12   7.0310      0.00    -0.03       0.00     0.07
    13   7.0311      0.00    -0.03       0.00    -0.01
    14   7.9104      0.00     0.01       0.00    -0.04
    15   7.9105      0.00    -0.04       0.00     0.01
    16   7.9106      0.00     0.02       0.00     0.02

The following table comes from a 10My integration of the orbit of the object. Three columns are shown. The first column is the result of integrating the nominal orbit. The other two columns are based on clones of the nominal orbit that are +/- 3 sigma from the nominal orbit. If all three types agree then the classificiation is deemed secure. The basis for these calculations is described in more detail in AJ, 129, 1117 (2005). Any use made of these calculations should refer to and credit this publication and the Deep Ecliptic Survey Team.

13SL106    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        47.091    47.091    47.091
ecceobj         0.199     0.199     0.199
incobj         10.318    10.318    10.318
qmin           36.766    36.767    36.767
qmax           57.617    57.692    57.542
amean          46.922    46.921    46.922
amin           46.501    46.506    46.513
amax           47.433    47.440    47.378
emean           0.199     0.199     0.199
emin            0.185     0.184     0.185
emax            0.216     0.216     0.215
imean          11.823    11.823    11.823
imin           11.215    11.212    11.214
imax           12.463    12.463    12.464
excite_mean     0.286     0.286     0.286
fracstop        1.000     1.000     1.000
cjmean          3.036     3.036     3.036

libcent 0      -180.0    -180.0    -180.0
libamp  0      -180.0    -180.0    -180.0
libcent 1      -180.0    -180.0    -180.0
libamp  1      -180.0    -180.0    -180.0
libcent 2      -180.0    -180.0    -180.0
libamp  2      -180.0    -180.0    -180.0
libcent 3      -180.0    -180.0    -180.0
libamp  3      -180.0    -180.0    -180.0
libcent 4      -180.0    -180.0    -180.0
libamp  4      -180.0    -180.0    -180.0

kozaimean       188.1     188.2     188.0
kozaiamp        180.0     180.0     180.0