Orbit Fit and Astrometric record for 13SS102

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: 13SS102   
# Created Thu Dec  9 02:11:55 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     50 observations of     50
# Arc:   7.91y
# First observation: 2013/09/10
#  Last observation: 2021/08/08
# Chi-squared of fit:    16.88 DOF:     94 RMS:  0.10
# Min/Max residuals:    -0.27    0.36
# Exact a, adot, b, bdot, g, gdot:
  1.409516E-05  2.533290E-02  8.568446E-06  1.185496E-02  2.600120E-02 -2.868350E-03
# Covariance matrix:
  1.6522E-13 -3.5326E-14  1.4728E-15 -3.7273E-15  1.1438E-13 -4.8624E-14
 -3.5326E-14  2.6986E-14 -8.8478E-15  1.0076E-14  3.1720E-15  1.2498E-13
  1.4728E-15 -8.8478E-15  7.8413E-14 -2.1074E-14 -1.1604E-14 -5.8081E-14
 -3.7273E-15  1.0076E-14 -2.1074E-14  1.1124E-14  9.9686E-15  6.4379E-14
  1.1438E-13  3.1720E-15 -1.1604E-14  9.9686E-15  1.8612E-13  1.1986E-13
 -4.8624E-14  1.2498E-13 -5.8081E-14  6.4379E-14  1.1986E-13  7.9646E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   -8.749811    4.340505    0.292981   -0.146586   -0.953053  2456545.812358
# Heliocentric elements and errors
Epoch:              2456546.5000  =  2013/09/11
Mean Anomaly:          333.39487 +/-     0.008
Argument of Peri:       20.04852 +/-     0.012
Long of Asc Node:       21.53685 +/-     0.000
Inclination:            26.37081 +/-     0.000
Eccentricity:         0.19883896 +/-    0.0001
Semi-Major Axis:     47.32631069 +/-    0.0041
Time of Perihelion: 2465335.0110 +/-      14.7
Perihelion:          37.91599610 +/-    0.0042
Aphelion:            56.73662529 +/-    0.0056
Period (y)              325.5833 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           38.88652799 +/-    0.0006
Ecliptic Y            2.66075271 +/-    0.0000
Ecliptic Z           -5.85019979 +/-    0.0001
Ecliptic XDOT        -0.00031638 +/-    0.0000
Ecliptic YDOT         0.00265045 +/-    0.0000
Ecliptic ZDOT         0.00127985 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   39.41411094 +/-    0.0006
Geocenter to KBO     38.45986275 +/-    0.0006
# Hcoef:  6.77

The following table shows the complete astrometric record for 13SS102. 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 (13SS102) followed by the observatory code and reference code for the source of the astrometry.

2013 09  10.31158  00 29 51.675  -06 18 16.25  23.2g 13SS102   W84  C~4yR2      
2013 09  30.169595 00 28 15.22   -06 26 48.1   22.5r 13SS102   W84  C~35bY      
2013 09  30.17012  00 28 15.228  -06 26 48.28  22.6r 13SS102   W84  C~4yR2      
2013 09  30.17161  00 28 15.224  -06 26 48.29  22.3i 13SS102   W84  C~4yR2      
2013 09  30.17161  00 28 15.22   -06 26 48.3   22.4i 13SS102   W84  C~3clG      
2013 10  04.18090  00 27 55.235  -06 28 22.38  22.9r 13SS102   W84  C~4yR2      
2013 10  04.18090  00 27 55.24   -06 28 22.4   22.8r 13SS102   W84  C~3clG      
2013 11  08.076968 00 25 17.85   -06 37 26.2   23.2r 13SS102   W84  C~35bY      
2013 11  08.07750  00 25 17.853  -06 37 26.17  22.2r 13SS102   W84  C~4yR2      
2013 11  08.078345 00 25 17.82   -06 37 26.0   22.3i 13SS102   W84  C~35bY      
2013 11  08.07887  00 25 17.837  -06 37 26.17  21.9i 13SS102   W84  C~4yR2      
2013 11  08.079722 00 25 17.83   -06 37 26.1   22.4z 13SS102   W84  C~35bY      
2013 11  08.08025  00 25 17.828  -06 37 26.12  22.3z 13SS102   W84  C~4yR2      
2014 11  13.12099  00 29 14.847  -05 26 10.87  22.4i 13SS102   W84  C~4yR2      
2014 11  13.12099  00 29 14.85   -05 26 10.9   22.5i 13SS102   W84  C~3clG      
2014 11  13.12408  00 29 14.828  -05 26 10.95  22.7r 13SS102   W84  C~4yR2      
2014 11  13.12408  00 29 14.83   -05 26 10.9   22.6r 13SS102   W84  C~3clG      
2014 11  14.12692  00 29 11.382  -05 26 15.67  23.0r 13SS102   W84  C~4yR2      
2014 11  14.12692  00 29 11.38   -05 26 15.7   23.0r 13SS102   W84  C~3clG      
2014 11  15.11946  00 29 08.034  -05 26 19.83  22.4z 13SS102   W84  C~4yR2      
2014 11  15.11946  00 29 08.03   -05 26 19.8   22.5z 13SS102   W84  C~3clG      
2016 09  09.170949 00 42 44.25   -02 39 27.0   23.0z 13SS102   W84  C~35bY      
2016 09  09.17148  00 42 44.245  -02 39 27.04  22.6z 13SS102   W84  C~4yR2      
2016 09  09.17148  00 42 44.25   -02 39 27.0   23.0z 13SS102   W84  C~3clG      
2016 09  09.27364  00 42 43.781  -02 39 29.67  22.8r 13SS102   W84  C~4yR2      
2016 09  09.27364  00 42 43.78   -02 39 29.7   22.7r 13SS102   W84  C~3clG      
2016 09  09.27503  00 42 43.776  -02 39 29.68  22.3i 13SS102   W84  C~4yR2      
2016 09  09.27503  00 42 43.78   -02 39 29.7   22.4i 13SS102   W84  C~3clG      
2016 09  09.27641  00 42 43.770  -02 39 29.78  23.8g 13SS102   W84  C~4yR2      
2016 09  09.27641  00 42 43.77   -02 39 29.8   23.8g 13SS102   W84  C~3clG      
2017 09  18.246505 00 46 20.91   -01 29 26.2   22.2i 13SS102   W84  C~35bY      
2017 09  18.24703  00 46 20.916  -01 29 26.18  22.0i 13SS102   W84  C~4yR2      
2017 09  18.247882 00 46 20.91   -01 29 26.2   22.5r 13SS102   W84  C~35bY      
2017 09  18.24840  00 46 20.908  -01 29 26.21  22.4r 13SS102   W84  C~4yR2      
2017 09  18.249259 00 46 20.89   -01 29 26.2   23.4g 13SS102   W84  C~35bY      
2017 09  18.24978  00 46 20.898  -01 29 26.02  23.0g 13SS102   W84  C~4yR2      
2017 10  20.165787 00 43 42.85   -01 42 00.3   22.3i 13SS102   W84  C~35bY      
2017 10  20.16631  00 43 42.846  -01 42 00.34  22.3i 13SS102   W84  C~4yR2      
2017 10  20.207766 00 43 42.64   -01 42 01.1   22.3z 13SS102   W84  C~35bY      
2017 10  20.20829  00 43 42.637  -01 42 01.11  22.2z 13SS102   W84  C~4yR2      
2017 10  27.144618 00 43 09.87   -01 44 11.2   22.1z 13SS102   W84  C~35bY      
2017 10  27.14514  00 43 09.866  -01 44 11.22  21.9z 13SS102   W84  C~4yR2      
2018 09  14.32489  00 50 59.254  -00 13 30.95  22.3i 13SS102   W84  C~4yR2      
2018 10  19.14929  00 48 07.584  -00 27 24.83  22.0z 13SS102   W84  C~4yR2      
2018 11  08.17949  00 46 36.165  -00 33 14.10  23.0r 13SS102   W84  C~4yR2      
2018 11  08.18087  00 46 36.159  -00 33 14.13  22.5i 13SS102   W84  C~4yR2      
2018 11  27.08311  00 45 30.250  -00 35 49.01  23.5g 13SS102   W84  C~4yR2      
2021 08  08.538780 01 06 08.834  +03 41 11.93  22.9w 13SS102   F51  C~4xRB      
2021 08  08.551133 01 06 08.829  +03 41 11.99  22.8w 13SS102   F51  C~4xRB      
2021 08  08.576079 01 06 08.743  +03 41 11.81  23.0w 13SS102   F51  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     0.36       0.00    -0.15
     2   0.0544      0.00    -0.21       0.00     0.16
     3   0.0544      0.00    -0.05       0.00    -0.00
     4   0.0544      0.00    -0.06       0.00     0.01
     5   0.0544      0.00     0.00       0.00     0.02
     6   0.0654      0.00    -0.06       0.00    -0.01
     7   0.0654      0.00    -0.14       0.00     0.01
     8   0.1609      0.00     0.23       0.00    -0.11
     9   0.1609      0.00     0.31       0.00    -0.08
    10   0.1609      0.00    -0.14       0.00     0.10
    11   0.1609      0.00     0.15       0.00    -0.07
    12   0.1609      0.00     0.09       0.00     0.01
    13   0.1609      0.00     0.09       0.00    -0.01
    14   1.1740      0.00     0.08       0.00     0.01
    15   1.1740      0.00     0.04       0.00     0.04
    16   1.1740      0.00    -0.05       0.00     0.03
    17   1.1740      0.00    -0.08       0.00    -0.02
    18   1.1768      0.00    -0.12       0.00     0.02
    19   1.1768      0.00    -0.09       0.00     0.05
    20   1.1795      0.00    -0.27       0.00     0.06
    21   1.1795      0.00    -0.21       0.00     0.03
    22   2.9976      0.00     0.01       0.00     0.03
    23   2.9976      0.00     0.04       0.00     0.04
    24   2.9976      0.00    -0.03       0.00     0.00
    25   2.9978      0.00    -0.02       0.00    -0.06
    26   2.9978      0.00    -0.00       0.00    -0.03
    27   2.9978      0.00     0.08       0.00    -0.03
    28   2.9978      0.00     0.02       0.00    -0.01
    29   2.9979      0.00     0.02       0.00    -0.09
    30   2.9979      0.00     0.02       0.00    -0.07
    31   4.0217      0.00    -0.09       0.00    -0.06
    32   4.0217      0.00     0.04       0.00    -0.03
    33   4.0217      0.00     0.01       0.00    -0.03
    34   4.0217      0.00     0.02       0.00    -0.02
    35   4.0217      0.00    -0.19       0.00     0.01
    36   4.0217      0.00    -0.03       0.00     0.20
    37   4.1091      0.00     0.07       0.00     0.01
    38   4.1091      0.00     0.05       0.00    -0.02
    39   4.1092      0.00     0.02       0.00     0.05
    40   4.1092      0.00     0.01       0.00     0.05
    41   4.1282      0.00     0.06       0.00     0.02
    42   4.1282      0.00     0.04       0.00     0.01
    43   5.0103      0.00     0.07       0.00     0.09
    44   5.1056      0.00     0.24       0.00     0.06
    45   5.1605      0.00    -0.01       0.00     0.03
    46   5.1605      0.00    -0.02       0.00     0.02
    47   5.2122      0.00    -0.08       0.00    -0.06
    48   7.9103      0.00    -0.05       0.00    -0.16
    49   7.9103      0.00     0.26       0.00     0.01
    50   7.9104      0.00    -0.25       0.00     0.06

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.

13SS102    quality flag:2

Type:       SCATEXTD  SCATNEAR  SCATEXTD

axisobj        47.597    47.597    47.597
ecceobj         0.202     0.202     0.202
incobj         26.316    26.316    26.316
qmin           36.758    36.757    36.760
qmax           58.265    58.252    58.269
amean          47.275    47.276    47.275
amin           46.853    46.851    46.852
amax           47.782    47.806    47.768
emean           0.202     0.202     0.202
emin            0.184     0.185     0.184
emax            0.220     0.220     0.220
imean          26.030    26.030    26.030
imin           25.587    25.574    25.585
imax           26.468    26.454    26.463
excite_mean     0.483     0.483     0.483
fracstop        1.000     1.000     1.000
cjmean          2.843     2.843     2.843

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       166.2     166.4     166.3
kozaiamp        180.0     179.9     180.0