Orbit Fit and Astrometric record for 13SO102

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: 13SO102   
# Created Tue Nov 30 02:12:01 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     52 observations of     52
# Arc:   5.06y
# First observation: 2013/09/29
#  Last observation: 2018/10/21
# Chi-squared of fit:     6.01 DOF:     98 RMS:  0.06
# Min/Max residuals:    -0.15    0.18
# Exact a, adot, b, bdot, g, gdot:
  1.967967E-05  4.094943E-02 -1.733608E-06 -3.826190E-03  3.319687E-02 -2.277543E-03
# Covariance matrix:
  1.9742E-13 -1.4886E-13 -9.9289E-15  1.1504E-14 -2.3590E-14 -5.9784E-13
 -1.4886E-13  1.9037E-13  1.3907E-14 -1.7266E-14  1.1395E-13  8.8200E-13
 -9.9289E-15  1.3907E-14  9.8356E-14 -3.2458E-14  7.4102E-15  6.9795E-14
  1.1504E-14 -1.7266E-14 -3.2458E-14  1.5638E-14 -1.1204E-14 -8.6308E-14
 -2.3590E-14  1.1395E-13  7.4102E-15 -1.1204E-14  2.0125E-13  5.4751E-13
 -5.9784E-13  8.8200E-13  6.9795E-14 -8.6308E-14  5.4751E-13  4.4131E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -8.513400   22.370546    0.282217   -0.142202   -0.950739  2456564.831848
# Heliocentric elements and errors
Epoch:              2456564.5000  =  2013/09/29
Mean Anomaly:          346.77459 +/-     0.009
Argument of Peri:      258.12123 +/-     0.015
Long of Asc Node:      145.28273 +/-     0.001
Inclination:             9.85703 +/-     0.000
Eccentricity:         0.22273140 +/-    0.0000
Semi-Major Axis:     39.49007989 +/-    0.0025
Time of Perihelion: 2459894.4440 +/-       8.7
Perihelion:          30.69439905 +/-    0.0027
Aphelion:            48.28576074 +/-    0.0036
Period (y)              248.1648 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           28.54509220 +/-    0.0004
Ecliptic Y           11.44634645 +/-    0.0002
Ecliptic Z           -4.45956356 +/-    0.0001
Ecliptic XDOT        -0.00150651 +/-    0.0000
Ecliptic YDOT         0.00303326 +/-    0.0000
Ecliptic ZDOT        -0.00028413 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   31.07621717 +/-    0.0003
Geocenter to KBO     30.12338570 +/-    0.0004
# Hcoef:  7.58

The following table shows the complete astrometric record for 13SO102. 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 (13SO102) followed by the observatory code and reference code for the source of the astrometry.

2013 09  29.33107  01 35 22.86   +00 47 47.0   23.2g 13SO102   W84  C~3coO      
2013 09  29.33107  01 35 22.861  +00 47 47.02  23.0g 13SO102   W84  C~4yR1      
2013 10  04.17911  01 34 56.055  +00 44 36.26  23.0g 13SO102   W84  C~4yR1      
2013 10  04.17911  01 34 56.05   +00 44 36.2   23.0g 13SO102   W84  C~3coO      
2014 10  03.32632  01 44 06.845  +01 24 53.99  22.9g 13SO102   W84  C~4yR1      
2014 10  03.32632  01 44 06.84   +01 24 54.0   23.0g 13SO102   W84  C~3coO      
2014 10  21.27352  01 42 23.24   +01 13 41.8   23.2g 13SO102   W84  C~3coO      
2014 10  21.27352  01 42 23.246  +01 13 41.73  22.8g 13SO102   W84  C~4yR1      
2014 10  21.27489  01 42 23.233  +01 13 41.65  22.2i 13SO102   W84  C~4yR1      
2014 10  21.27489  01 42 23.23   +01 13 41.7   22.5i 13SO102   W84  C~3coO      
2014 10  28.22157  01 41 42.406  +01 09 46.02  22.4r 13SO102   W84  C~4yR1      
2014 10  28.22157  01 41 42.41   +01 09 46.0   22.5r 13SO102   W84  C~3coO      
2014 10  29.25281  01 41 36.392  +01 09 12.67  22.3r 13SO102   W84  C~4yR1      
2014 10  29.25281  01 41 36.39   +01 09 12.7   22.3r 13SO102   W84  C~3coO      
2014 11  16.15607  01 39 57.68   +01 01 00.8   22.3r 13SO102   W84  C~3coO      
2014 11  16.15607  01 39 57.676  +01 01 00.81  22.3r 13SO102   W84  C~4yR1      
2014 11  17.13417  01 39 52.73   +01 00 39.3   22.2i 13SO102   W84  C~3coO      
2014 11  17.13417  01 39 52.725  +01 00 39.27  22.1i 13SO102   W84  C~4yR1      
2014 11  18.08407  01 39 47.981  +01 00 18.93  22.3r 13SO102   W84  C~4yR1      
2014 11  18.08407  01 39 47.98   +01 00 18.9   22.4r 13SO102   W84  C~3coO      
2014 11  27.11774  01 39 05.917  +00 57 36.95  21.9z 13SO102   W84  C~4yR1      
2014 11  27.11774  01 39 05.92   +00 57 36.9   22.3z 13SO102   W84  C~3coO      
2015 08  24.414722 01 55 55.35   +02 28 31.1   22.2i 13SO102   W84  C~35bY      
2015 08  24.41525  01 55 55.360  +02 28 31.05  22.3i 13SO102   W84  C~4yR1      
2015 09  04.31928  01 55 25.502  +02 22 40.52  22.7z 13SO102   W84  C~4yR1      
2015 09  04.31928  01 55 25.50   +02 22 40.5   22.7z 13SO102   W84  C~3coO      
2015 10  17.21895  01 51 55.903  +01 55 52.56  22.1r 13SO102   W84  C~4yR1      
2015 10  17.21895  01 51 55.90   +01 55 52.6   22.2r 13SO102   W84  C~3coO      
2015 11  06.19886  01 49 58.44   +01 44 52.4   22.2i 13SO102   W84  C~3coO      
2015 11  06.19886  01 49 58.440  +01 44 52.35  22.2i 13SO102   W84  C~4yR1      
2015 11  06.20022  01 49 58.43   +01 44 52.3   22.1r 13SO102   W84  C~3coO      
2015 11  06.20022  01 49 58.434  +01 44 52.28  22.1r 13SO102   W84  C~4yR1      
2016 01  10.05490  01 46 26.82   +01 37 46.4   22.5i 13SO102   W84  C~3coO      
2016 01  10.05490  01 46 26.817  +01 37 46.39  22.4i 13SO102   W84  C~4yR1      
2016 09  10.30080  02 04 07.17   +02 57 54.9   23.2g 13SO102   W84  C~3coO      
2016 09  10.30080  02 04 07.172  +02 57 54.84  23.0g 13SO102   W84  C~4yR1      
2016 11  04.21137  01 59 14.27   +02 24 59.5   22.6r 13SO102   W84  C~3coO      
2016 11  04.21137  01 59 14.267  +02 24 59.53  22.0r 13SO102   W84  C~4yR1      
2016 11  30.14518  01 56 57.41   +02 15 20.9   22.0z 13SO102   W84  C~3coO      
2016 11  30.14518  01 56 57.413  +02 15 20.93  21.9z 13SO102   W84  C~4yR1      
2017 10  29.239514 02 09 02.75   +03 07 38.6   22.4z 13SO102   W84  C~35bY      
2017 10  29.24005  02 09 02.753  +03 07 38.57  22.5z 13SO102   W84  C~4yR1      
2017 10  29.242280 02 09 02.73   +03 07 38.5   22.4i 13SO102   W84  C~35bY      
2017 10  29.24281  02 09 02.736  +03 07 38.40  22.3i 13SO102   W84  C~4yR1      
2017 11  16.181725 02 07 17.87   +02 59 08.8   22.4r 13SO102   W84  C~35bY      
2017 11  16.18225  02 07 17.873  +02 59 08.74  22.4r 13SO102   W84  C~4yR1      
2017 11  16.183102 02 07 17.86   +02 59 08.7   23.0g 13SO102   W84  C~35bY      
2017 11  16.18363  02 07 17.858  +02 59 08.66  22.9g 13SO102   W84  C~4yR1      
2017 12  25.09309  02 04 37.448  +02 52 16.83  22.1Y 13SO102   W84  C~4yR1      
2018 09  09.28945  02 22 29.515  +04 16 29.71  22.4z 13SO102   W84  C~4yR1      
2018 09  09.35718  02 22 29.297  +04 16 27.41  23.1g 13SO102   W84  C~4yR1      
2018 10  21.23239  02 19 06.607  +03 51 31.25  21.8z 13SO102   W84  C~4yR1      

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    -0.03
     2   0.0000      0.00    -0.01       0.00    -0.01
     3   0.0133      0.00    -0.07       0.00    -0.12
     4   0.0133      0.00     0.00       0.00    -0.06
     5   1.0103      0.00    -0.07       0.00     0.01
     6   1.0103      0.00     0.00       0.00     0.00
     7   1.0594      0.00    -0.02       0.00     0.05
     8   1.0594      0.00     0.07       0.00    -0.02
     9   1.0594      0.00    -0.05       0.00    -0.00
    10   1.0594      0.00    -0.00       0.00    -0.05
    11   1.0784      0.00     0.08       0.00     0.02
    12   1.0784      0.00     0.02       0.00     0.04
    13   1.0812      0.00    -0.03       0.00     0.04
    14   1.0812      0.00    -0.00       0.00     0.01
    15   1.1303      0.00     0.04       0.00     0.08
    16   1.1303      0.00    -0.02       0.00     0.09
    17   1.1329      0.00    -0.00       0.00     0.05
    18   1.1329      0.00     0.07       0.00     0.08
    19   1.1355      0.00     0.06       0.00    -0.04
    20   1.1355      0.00     0.08       0.00    -0.01
    21   1.1603      0.00     0.02       0.00    -0.04
    22   1.1603      0.00    -0.03       0.00     0.01
    23   1.9003      0.00    -0.15       0.00     0.02
    24   1.9003      0.00     0.02       0.00    -0.01
    25   1.9302      0.00     0.02       0.00    -0.02
    26   1.9302      0.00     0.05       0.00    -0.00
    27   2.0476      0.00    -0.00       0.00     0.02
    28   2.0476      0.00     0.04       0.00    -0.02
    29   2.1023      0.00    -0.05       0.00    -0.01
    30   2.1023      0.00    -0.05       0.00     0.04
    31   2.1023      0.00    -0.08       0.00    -0.02
    32   2.1023      0.00    -0.02       0.00    -0.04
    33   2.2799      0.00     0.03       0.00     0.01
    34   2.2799      0.00     0.08       0.00     0.02
    35   2.9486      0.00     0.18       0.00    -0.08
    36   2.9486      0.00     0.15       0.00    -0.02
    37   3.0989      0.00    -0.06       0.00     0.08
    38   3.0989      0.00    -0.01       0.00     0.05
    39   3.1699      0.00     0.13       0.00    -0.00
    40   3.1699      0.00     0.09       0.00    -0.03
    41   4.0819      0.00    -0.08       0.00     0.04
    42   4.0819      0.00     0.01       0.00     0.03
    43   4.0819      0.00    -0.13       0.00     0.03
    44   4.0819      0.00     0.01       0.00    -0.05
    45   4.1310      0.00    -0.07       0.00     0.09
    46   4.1310      0.00     0.02       0.00     0.05
    47   4.1310      0.00    -0.10       0.00     0.03
    48   4.1310      0.00    -0.09       0.00    -0.00
    49   4.2375      0.00    -0.07       0.00    -0.05
    50   4.9444      0.00     0.02       0.00     0.03
    51   4.9446      0.00     0.09       0.00    -0.05
    52   5.0593      0.00     0.14       0.00    -0.13

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.

13SO102    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.707    39.706    39.707
ecceobj         0.226     0.226     0.226
incobj          9.841     9.841     9.841
qmin           29.849    29.852    29.846
qmax           49.627    49.630    49.624
amean          39.456    39.456    39.456
amin           38.987    38.984    38.990
amax           39.989    39.990    39.987
emean           0.216     0.216     0.216
emin            0.188     0.188     0.188
emax            0.243     0.243     0.242
imean           8.247     8.247     8.247
imin            7.223     7.224     7.223
imax            9.395     9.393     9.395
excite_mean     0.259     0.259     0.259
fracstop        1.000     1.000     1.000
cjmean          2.976     2.976     2.976

libcent 0       180.0     179.2     180.2
libamp  0        93.2      93.8      92.6
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       171.6     171.4     171.6
kozaiamp        180.0     180.0     180.0