Orbit Fit and Astrometric record for 13SH102

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: 13SH102   
# Created Sat Dec  4 02:12:00 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     35 observations of     35
# Arc:   5.05y
# First observation: 2013/09/30
#  Last observation: 2018/10/18
# Chi-squared of fit:    13.14 DOF:     64 RMS:  0.11
# Min/Max residuals:    -0.39    0.26
# Exact a, adot, b, bdot, g, gdot:
  1.484777E-05  2.576596E-02 -5.123940E-06 -9.055342E-03  2.693497E-02  1.387861E-03
# Covariance matrix:
  1.8514E-13 -8.5455E-14 -8.7816E-15  1.5551E-14  7.9827E-14 -3.6286E-13
 -8.5455E-14  1.2069E-13  2.0443E-14 -3.8264E-14  3.6836E-14  8.9549E-13
 -8.7816E-15  2.0443E-14  1.3122E-13 -4.1741E-14  9.9760E-15  1.7337E-13
  1.5551E-14 -3.8264E-14 -4.1741E-14  2.7812E-14 -2.1257E-14 -3.2623E-13
  7.9827E-14  3.6836E-14  9.9760E-15 -2.1257E-14  2.9709E-13  5.0061E-13
 -3.6286E-13  8.9549E-13  1.7337E-13 -3.2623E-13  5.0061E-13  7.6369E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.843534    2.448616   -0.076425   -0.014603   -0.998608  2456565.663198
# Heliocentric elements and errors
Epoch:              2456566.5000  =  2013/10/01
Mean Anomaly:           93.34058 +/-     0.081
Argument of Peri:       83.37339 +/-     0.071
Long of Asc Node:      180.23215 +/-     0.000
Inclination:            19.38818 +/-     0.000
Eccentricity:         0.05067188 +/-    0.0001
Semi-Major Axis:     37.91656189 +/-    0.0030
Time of Perihelion: 2434455.4267 +/-      19.5
Perihelion:          35.99525853 +/-    0.0047
Aphelion:            39.83786525 +/-    0.0049
Period (y)              233.4810 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           38.08263101 +/-    0.0008
Ecliptic Y            1.70801655 +/-    0.0000
Ecliptic Z           -0.54678308 +/-    0.0000
Ecliptic XDOT         0.00000933 +/-    0.0000
Ecliptic YDOT         0.00262075 +/-    0.0000
Ecliptic ZDOT        -0.00092228 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   38.12480554 +/-    0.0007
Geocenter to KBO     37.12646241 +/-    0.0008
# Hcoef:  7.26

The following table shows the complete astrometric record for 13SH102. 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 (13SH102) followed by the observatory code and reference code for the source of the astrometry.

2013 09  30.16242  00 10 19.692  +00 11 58.93  22.9r 13SH102   W84  C~4yR0      
2013 09  30.16242  00 10 19.69   +00 11 58.9   23.2r 13SH102   W84  C~3clF      
2013 11  22.06982  00 06 59.888  -00 13 49.19  22.8r 13SH102   W84  C~4yR0      
2013 11  22.06982  00 06 59.89   -00 13 49.2   22.8r 13SH102   W84  C~3clF      
2013 11  22.07119  00 06 59.875  -00 13 49.09  22.7i 13SH102   W84  C~4yR0      
2013 11  22.07119  00 06 59.88   -00 13 49.1   22.8i 13SH102   W84  C~3clF      
2013 11  23.09553  00 06 57.823  -00 14 06.66  23.4i 13SH102   W84  C~4yR0      
2013 11  23.09553  00 06 57.82   -00 14 06.7   23.4i 13SH102   W84  C~3clF      
2014 08  18.30786  00 19 41.201  +00 43 19.41  23.3i 13SH102   W84  C~4yR0      
2014 08  18.30786  00 19 41.20   +00 43 19.4   23.5i 13SH102   W84  C~3clF      
2014 10  02.25127  00 16 24.59   +00 17 27.0   24.3g 13SH102   W84  C~3clF      
2014 10  02.25263  00 16 24.617  +00 17 27.14  22.1i 13SH102   W84  C~4yR0      
2014 10  02.25263  00 16 24.62   +00 17 27.1   22.3i 13SH102   W84  C~3clF      
2014 11  14.09392  00 13 29.989  -00 04 34.40  22.9z 13SH102   W84  C~4yR0      
2016 09  10.26940  00 30 28.984  +00 43 24.98  22.8z 13SH102   W84  C~4yR0      
2016 10  02.18440  00 28 46.204  +00 30 10.12  22.3i 13SH102   W84  C~4yR0      
2016 10  02.18440  00 28 46.21   +00 30 10.2   23.0i 13SH102   W84  C~3clF      
2016 10  23.13956  00 27 08.893  +00 18 09.13  23.1r 13SH102   W84  C~4yR0      
2016 10  23.13956  00 27 08.89   +00 18 09.1   23.3r 13SH102   W84  C~3clF      
2016 10  23.14093  00 27 08.900  +00 18 09.32  24.0g 13SH102   W84  C~4yR0      
2016 11  08.13786  00 26 05.588  +00 10 30.43  22.4i 13SH102   W84  C~4yR0      
2016 11  08.13786  00 26 05.59   +00 10 30.5   22.8i 13SH102   W84  C~3clF      
2016 11  08.13923  00 26 05.576  +00 10 30.56  22.5z 13SH102   W84  C~4yR0      
2016 11  08.13923  00 26 05.58   +00 10 30.6   22.5z 13SH102   W84  C~3clF      
2017 09  27.209722 00 35 21.44   +00 39 45.1   23.0r 13SH102   W84  C~352C      
2017 09  27.21025  00 35 21.439  +00 39 45.13  22.9r 13SH102   W84  C~4yR0      
2017 09  27.211088 00 35 21.44   +00 39 44.9   22.5i 13SH102   W84  C~352C      
2017 09  27.21161  00 35 21.436  +00 39 44.96  22.5i 13SH102   W84  C~4yR0      
2017 09  27.21299  00 35 21.447  +00 39 44.76  23.6g 13SH102   W84  C~4yR0      
2017 10  29.13070  00 32 53.666  +00 21 37.71  23.0z 13SH102   W84  C~4yR0      
2018 09  09.33831  00 42 53.230  +00 56 59.18  22.8r 13SH102   W84  C~4yR0      
2018 09  09.33970  00 42 53.228  +00 56 59.06  22.7i 13SH102   W84  C~4yR0      
2018 09  09.34107  00 42 53.222  +00 56 59.19  24.1g 13SH102   W84  C~4yR0      
2018 09  17.31579  00 42 18.094  +00 52 16.17  22.5i 13SH102   W84  C~4yR0      
2018 10  18.18643  00 39 51.951  +00 33 57.00  22.8z 13SH102   W84  C~4yR0      

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     0.07       0.00    -0.01
     2   0.0000      0.00     0.04       0.00    -0.04
     3   0.1449      0.00     0.10       0.00    -0.05
     4   0.1449      0.00     0.13       0.00    -0.06
     5   0.1449      0.00     0.02       0.00     0.06
     6   0.1449      0.00    -0.05       0.00     0.07
     7   0.1477      0.00    -0.08       0.00     0.00
     8   0.1477      0.00    -0.12       0.00    -0.04
     9   0.8820      0.00     0.02       0.00     0.08
    10   0.8820      0.00     0.04       0.00     0.09
    11   1.0050      0.00    -0.39       0.00    -0.00
    12   1.0050      0.00     0.16       0.00     0.15
    13   1.0050      0.00     0.11       0.00     0.19
    14   1.1223      0.00     0.02       0.00    -0.21
    15   2.9462      0.00    -0.12       0.00    -0.11
    16   3.0062      0.00     0.03       0.00     0.05
    17   3.0062      0.00    -0.06       0.00    -0.03
    18   3.0636      0.00    -0.11       0.00    -0.10
    19   3.0636      0.00    -0.07       0.00    -0.07
    20   3.0636      0.00     0.13       0.00     0.17
    21   3.1074      0.00     0.09       0.00    -0.10
    22   3.1074      0.00     0.06       0.00    -0.17
    23   3.1074      0.00     0.01       0.00     0.04
    24   3.1074      0.00    -0.05       0.00    -0.00
    25   3.9919      0.00    -0.08       0.00     0.10
    26   3.9919      0.00    -0.06       0.00     0.15
    27   3.9919      0.00     0.02       0.00    -0.05
    28   3.9919      0.00    -0.01       0.00     0.03
    29   3.9919      0.00     0.26       0.00    -0.12
    30   4.0793      0.00     0.18       0.00    -0.16
    31   4.9423      0.00    -0.09       0.00     0.02
    32   4.9423      0.00    -0.03       0.00    -0.06
    33   4.9423      0.00    -0.03       0.00     0.12
    34   4.9641      0.00    -0.05       0.00    -0.04
    35   5.0487      0.00     0.11       0.00     0.18

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.

13SH102    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        38.096    38.096    38.096
ecceobj         0.052     0.052     0.052
incobj         19.332    19.332    19.332
qmin           35.539    35.538    35.541
qmax           40.681    40.541    40.542
amean          37.965    37.960    37.959
amin           37.684    37.674    37.671
amax           38.292    38.251    38.252
emean           0.044     0.043     0.043
emin            0.029     0.030     0.030
emax            0.062     0.061     0.061
imean          20.186    20.183    20.183
imin           18.760    18.761    18.760
imax           21.886    21.890    21.887
excite_mean     0.348     0.348     0.348
fracstop        1.000     1.000     1.000
cjmean          2.900     2.900     2.900

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       184.2     183.3     182.5
kozaiamp        179.9     179.9     180.0