Orbit Fit and Astrometric record for 13SL102

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: 13SL102   
# Created Thu Dec  9 02:11:55 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     68 observations of     68
# Arc:   5.11y
# First observation: 2013/09/09
#  Last observation: 2018/10/18
# Chi-squared of fit:    32.90 DOF:    130 RMS:  0.12
# Min/Max residuals:    -0.56    0.45
# Exact a, adot, b, bdot, g, gdot:
  2.263132E-05  3.723523E-02 -7.993218E-07  2.323836E-04  2.678967E-02  2.490870E-03
# Covariance matrix:
  1.0537E-13 -3.1354E-14 -4.6418E-16 -1.0113E-16  6.7633E-14 -6.2249E-14
 -3.1354E-14  7.7732E-14 -3.2536E-16  4.6620E-16  3.8563E-14  4.7664E-13
 -4.6418E-16 -3.2536E-16  5.5709E-14 -1.7384E-14 -1.0373E-15 -2.6485E-15
 -1.0113E-16  4.6620E-16 -1.7384E-14  9.0007E-15  2.5129E-16  3.2281E-15
  6.7633E-14  3.8563E-14 -1.0373E-15  2.5129E-16  1.4328E-13  3.2323E-13
 -6.2249E-14  4.7664E-13 -2.6485E-15  3.2281E-15  3.2323E-13  3.3308E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -6.661880    7.792456    0.368181   -0.108786   -0.932159  2456544.713858
# Heliocentric elements and errors
Epoch:              2456544.5000  =  2013/09/09
Mean Anomaly:            0.20547 +/-     0.000
Argument of Peri:      265.60869 +/-     0.006
Long of Asc Node:       94.80860 +/-     0.001
Inclination:             6.50441 +/-     0.000
Eccentricity:         0.88053124 +/-    0.0001
Semi-Major Axis:    319.20921822 +/-    0.1978
Time of Perihelion: 2455355.5756 +/-       1.9
Perihelion:          38.13553062 +/-    0.0331
Aphelion:           600.28290583 +/-    0.3727
Period (y)             5703.2359 +/-      5.30
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           37.71274918 +/-    0.0005
Ecliptic Y            4.79269644 +/-    0.0001
Ecliptic Z           -4.33043876 +/-    0.0001
Ecliptic XDOT        -0.00026889 +/-    0.0000
Ecliptic YDOT         0.00380373 +/-    0.0000
Ecliptic ZDOT        -0.00000580 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   38.26186879 +/-    0.0005
Geocenter to KBO     37.32779746 +/-    0.0005
# Hcoef:  7.02

The following table shows the complete astrometric record for 13SL102. 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 (13SL102) followed by the observatory code and reference code for the source of the astrometry.

2013 09  09.21308  00 39 08.255  -03 01 49.96  23.7g 13SL102   W84  C~4yR1      
2013 09  09.21308  00 39 08.25   -03 01 50.0   24.0g 13SL102   W84  C~3clF      
2013 09  28.120926 00 37 46.33   -03 11 17.6   23.4g 13SL102   W84  C~35bY      
2013 09  28.12146  00 37 46.332  -03 11 17.91  23.8g 13SL102   W84  C~4yR1      
2013 10  03.11401  00 37 23.627  -03 13 42.42  23.7g 13SL102   W84  C~4yR1      
2013 10  03.11401  00 37 23.62   -03 13 42.4   24.3g 13SL102   W84  C~3clF      
2013 10  04.158218 00 37 18.87   -03 14 12.4   23.6g 13SL102   W84  C~35bY      
2013 10  04.15874  00 37 18.868  -03 14 12.36  23.9g 13SL102   W84  C~4yR1      
2013 10  13.161146 00 36 38.16   -03 18 16.1   22.4i 13SL102   W84  C~35bY      
2013 10  13.16167  00 36 38.156  -03 18 16.17  21.9i 13SL102   W84  C~4yR1      
2013 10  13.16167  00 36 38.16   -03 18 16.1   21.9i 13SL102   W84  C~3clF      
2013 10  13.165718 00 36 38.14   -03 18 16.3   22.5z 13SL102   W84  C~35bY      
2013 10  13.16624  00 36 38.138  -03 18 16.22  22.2z 13SL102   W84  C~4yR1      
2013 10  13.16624  00 36 38.14   -03 18 16.3   22.5z 13SL102   W84  C~3clF      
2013 10  13.22535  00 36 37.872  -03 18 17.87  22.3i 13SL102   W84  C~4yR1      
2013 10  13.22535  00 36 37.87   -03 18 17.9   22.5i 13SL102   W84  C~3clF      
2013 10  13.22672  00 36 37.858  -03 18 18.12  22.2z 13SL102   W84  C~4yR1      
2013 10  13.22672  00 36 37.86   -03 18 18.1   22.4z 13SL102   W84  C~3clF      
2013 11  08.15030  00 34 53.496  -03 27 09.22  23.1r 13SL102   W84  C~4yR1      
2013 11  08.15030  00 34 53.50   -03 27 09.2   23.1r 13SL102   W84  C~3clF      
2014 10  28.20281  00 43 23.285  -02 32 54.11  22.9r 13SL102   W84  C~4yR1      
2014 10  28.20281  00 43 23.28   -02 32 54.1   22.9r 13SL102   W84  C~3clF      
2014 11  13.12689  00 42 24.502  -02 37 20.88  22.9r 13SL102   W84  C~4yR1      
2014 11  13.12689  00 42 24.50   -02 37 20.9   22.9r 13SL102   W84  C~3clF      
2014 11  14.083866 00 42 21.45   -02 37 32.6   22.6i 13SL102   W84  C~35bY      
2014 11  14.08439  00 42 21.453  -02 37 32.64  23.0i 13SL102   W84  C~4yR1      
2014 11  15.08792  00 42 18.296  -02 37 44.27  22.7i 13SL102   W84  C~4yR1      
2014 11  15.08792  00 42 18.30   -02 37 44.3   22.7i 13SL102   W84  C~3clF      
2014 11  17.053877 00 42 12.33   -02 38 05.6   22.0z 13SL102   W84  C~35bY      
2014 11  17.05440  00 42 12.326  -02 38 05.59  22.1z 13SL102   W84  C~4yR1      
2014 11  21.10071  00 42 00.925  -02 38 41.98  22.1z 13SL102   W84  C~4yR1      
2014 11  21.10071  00 42 00.92   -02 38 42.0   22.3z 13SL102   W84  C~3clF      
2014 11  27.06404  00 41 46.438  -02 39 16.97  22.7z 13SL102   W84  C~4yR1      
2015 09  04.29719  00 55 00.941  -01 17 06.53  22.2z 13SL102   W84  C~4yR1      
2015 09  04.29719  00 55 00.94   -01 17 06.5   22.3z 13SL102   W84  C~3clF      
2015 09  04.29857  00 55 00.937  -01 17 06.48  22.4i 13SL102   W84  C~4yR1      
2015 09  04.29857  00 55 00.94   -01 17 06.5   22.5i 13SL102   W84  C~3clF      
2016 08  25.40130  01 03 09.805  -00 22 29.62  22.7i 13SL102   W84  C~4yR1      
2016 08  25.40130  01 03 09.80   -00 22 29.6   22.8i 13SL102   W84  C~3clF      
2016 08  25.40266  01 03 09.803  -00 22 29.58  22.2z 13SL102   W84  C~4yR1      
2016 08  25.40266  01 03 09.80   -00 22 29.6   22.3z 13SL102   W84  C~3clF      
2016 08  26.32548  01 03 07.141  -00 22 52.84  22.9r 13SL102   W84  C~4yR1      
2016 08  26.32548  01 03 07.14   -00 22 52.9   23.2r 13SL102   W84  C~3clF      
2016 08  30.35266  01 02 54.845  -00 24 37.20  23.8g 13SL102   W84  C~4yR1      
2016 08  30.41875  01 02 54.60   -00 24 38.8   22.5z 13SL102   W84  C~3clF      
2016 10  23.12854  00 59 09.386  -00 49 30.21  23.2r 13SL102   W84  C~4yR1      
2016 10  23.12854  00 59 09.38   -00 49 30.2   23.1r 13SL102   W84  C~3clF      
2016 10  23.12990  00 59 09.376  -00 49 30.25  24.0g 13SL102   W84  C~4yR1      
2016 11  05.17136  00 58 15.109  -00 54 04.49  22.4i 13SL102   W84  C~4yR1      
2016 11  05.17136  00 58 15.11   -00 54 04.5   22.4i 13SL102   W84  C~3clF      
2016 11  05.17275  00 58 15.095  -00 54 04.57  22.7r 13SL102   W84  C~4yR1      
2016 11  05.17275  00 58 15.09   -00 54 04.6   22.7r 13SL102   W84  C~3clF      
2016 11  06.19836  00 58 11.126  -00 54 22.96  22.5i 13SL102   W84  C~4yR1      
2016 11  06.19836  00 58 11.13   -00 54 23.0   22.7i 13SL102   W84  C~3clF      
2016 11  06.19973  00 58 11.126  -00 54 22.90  23.8g 13SL102   W84  C~4yR1      
2016 11  06.19973  00 58 11.12   -00 54 22.9   24.0g 13SL102   W84  C~3clF      
2016 11  07.19846  00 58 07.306  -00 54 40.26  22.5z 13SL102   W84  C~4yR1      
2016 11  18.133333 00 57 29.23   -00 57 16.7   22.3z 13SL102   W84  C~35bY      
2016 11  18.13386  00 57 29.241  -00 57 16.89  22.2z 13SL102   W84  C~4yR1      
2017 08  27.39862  01 10 39.457  +00 26 50.76  22.4r 13SL102   W84  C~4yR1      
2017 09  18.26215  01 09 22.798  +00 17 00.09  22.7i 13SL102   W84  C~4yR1      
2017 09  18.26352  01 09 22.799  +00 17 00.07  22.9r 13SL102   W84  C~4yR1      
2017 09  18.26490  01 09 22.794  +00 17 00.16  23.4g 13SL102   W84  C~4yR1      
2017 09  27.24187  01 08 44.817  +00 12 41.51  22.1z 13SL102   W84  C~4yR1      
2018 09  14.34976  01 17 12.061  +01 08 48.87  23.1r 13SL102   W84  C~4yR1      
2018 09  14.35112  01 17 12.055  +01 08 48.80  22.7i 13SL102   W84  C~4yR1      
2018 09  14.35249  01 17 12.048  +01 08 48.80  24.3g 13SL102   W84  C~4yR1      
2018 10  18.20600  01 14 45.714  +00 53 10.43  22.6z 13SL102   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    -0.20       0.00     0.12
     2   0.0000      0.00    -0.13       0.00     0.16
     3   0.0518      0.00     0.04       0.00     0.30
     4   0.0518      0.00     0.10       0.00     0.00
     5   0.0654      0.00    -0.13       0.00     0.06
     6   0.0654      0.00    -0.02       0.00     0.04
     7   0.0683      0.00     0.03       0.00    -0.31
     8   0.0683      0.00     0.04       0.00    -0.25
     9   0.0929      0.00     0.01       0.00     0.10
    10   0.0929      0.00     0.04       0.00     0.12
    11   0.0929      0.00    -0.02       0.00     0.05
    12   0.0930      0.00     0.02       0.00     0.02
    13   0.0930      0.00     0.06       0.00     0.03
    14   0.0930      0.00     0.03       0.00     0.11
    15   0.0931      0.00     0.06       0.00    -0.01
    16   0.0931      0.00     0.03       0.00    -0.04
    17   0.0931      0.00    -0.02       0.00    -0.21
    18   0.0931      0.00    -0.05       0.00    -0.23
    19   0.1641      0.00     0.16       0.00     0.03
    20   0.1641      0.00     0.10       0.00     0.01
    21   1.1334      0.00    -0.19       0.00     0.00
    22   1.1334      0.00    -0.11       0.00    -0.01
    23   1.1770      0.00    -0.04       0.00    -0.02
    24   1.1770      0.00    -0.01       0.00    -0.00
    25   1.1797      0.00     0.11       0.00    -0.02
    26   1.1797      0.00     0.18       0.00    -0.05
    27   1.1824      0.00     0.10       0.00    -0.00
    28   1.1824      0.00     0.04       0.00     0.03
    29   1.1878      0.00    -0.02       0.00    -0.07
    30   1.1878      0.00    -0.06       0.00    -0.06
    31   1.1989      0.00    -0.02       0.00    -0.07
    32   1.1989      0.00    -0.10       0.00    -0.09
    33   1.2152      0.00    -0.04       0.00    -0.01
    34   1.9852      0.00    -0.04       0.00     0.02
    35   1.9852      0.00    -0.02       0.00    -0.01
    36   1.9852      0.00     0.04       0.00     0.06
    37   1.9852      0.00    -0.01       0.00     0.08
    38   2.9601      0.00    -0.03       0.00     0.00
    39   2.9601      0.00     0.04       0.00    -0.02
    40   2.9601      0.00     0.03       0.00     0.04
    41   2.9601      0.00     0.07       0.00     0.06
    42   2.9627      0.00     0.04       0.00    -0.03
    43   2.9627      0.00     0.05       0.00     0.03
    44   2.9737      0.00     0.45       0.00    -0.12
    45   2.9739      0.00     0.02       0.00     0.03
    46   3.1209      0.00    -0.01       0.00    -0.04
    47   3.1209      0.00     0.08       0.00    -0.05
    48   3.1209      0.00     0.02       0.00    -0.05
    49   3.1566      0.00     0.13       0.00     0.05
    50   3.1566      0.00     0.11       0.00     0.06
    51   3.1566      0.00    -0.09       0.00    -0.02
    52   3.1566      0.00    -0.01       0.00     0.01
    53   3.1594      0.00     0.07       0.00    -0.04
    54   3.1594      0.00     0.01       0.00    -0.00
    55   3.1594      0.00    -0.00       0.00     0.08
    56   3.1594      0.00     0.09       0.00     0.08
    57   3.1622      0.00    -0.01       0.00     0.13
    58   3.1921      0.00    -0.38       0.00     0.38
    59   3.1921      0.00    -0.19       0.00     0.19
    60   3.9649      0.00    -0.49       0.00    -0.56
    61   4.0248      0.00    -0.02       0.00    -0.08
    62   4.0248      0.00     0.08       0.00    -0.06
    63   4.0248      0.00     0.09       0.00     0.07
    64   4.0494      0.00     0.12       0.00     0.07
    65   5.0134      0.00     0.03       0.00     0.05
    66   5.0134      0.00     0.02       0.00     0.01
    67   5.0134      0.00    -0.00       0.00     0.05
    68   5.1061      0.00     0.07       0.00    -0.04

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.

13SL102    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj       339.293   339.283   339.303
ecceobj         0.888     0.888     0.888
incobj          6.507     6.507     6.507
qmin           34.749    35.273    35.240
qmax          843.763   651.090   685.806
amean         352.122   311.429   310.168
amin          304.789   292.547   277.358
amax          440.951   344.612   361.989
emean           0.891     0.877     0.877
emin            0.870     0.865     0.858
emax            0.914     0.889     0.895
imean           5.006     5.068     5.059
imin            4.908     4.927     4.924
imax            5.212     5.305     5.323
excite_mean     0.895     0.882     0.881
fracstop        1.000     1.000     1.000
cjmean          3.171     3.171     3.171

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       277.9     283.3     283.6
kozaiamp         14.3      17.6      18.7