Orbit Fit and Astrometric record for 13SJ102

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: 13SJ102   
# Created Sun Dec  5 02:11:55 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     55 observations of     55
# Arc:   5.03y
# First observation: 2013/09/28
#  Last observation: 2018/10/10
# Chi-squared of fit:     7.12 DOF:    104 RMS:  0.06
# Min/Max residuals:    -0.22    0.18
# Exact a, adot, b, bdot, g, gdot:
  1.924925E-05  3.621878E-02  7.021918E-07  1.972238E-05  3.058203E-02 -5.934059E-03
# Covariance matrix:
  9.6365E-14 -3.3450E-14 -1.4834E-15 -1.6693E-17  5.7490E-14 -6.6792E-14
 -3.3450E-14  1.0482E-13 -1.5309E-15  3.3673E-16  7.6415E-14  6.4167E-13
 -1.4834E-15 -1.5309E-15  6.4360E-14 -1.9245E-14 -5.1627E-15 -1.1991E-14
 -1.6693E-17  3.3673E-16 -1.9245E-14  9.7324E-15  3.4784E-16  2.3048E-15
  5.7490E-14  7.6415E-14 -5.1627E-15  3.4784E-16  2.1968E-13  5.8248E-13
 -6.6792E-14  6.4167E-13 -1.1991E-14  2.3048E-15  5.8248E-13  4.3581E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -7.569626    4.254923   -0.009936   -0.131930   -0.993505  2456563.625358
# Heliocentric elements and errors
Epoch:              2456564.5000  =  2013/09/29
Mean Anomaly:          334.39906 +/-     0.006
Argument of Peri:      315.64886 +/-     0.011
Long of Asc Node:       93.81451 +/-     0.001
Inclination:             7.34538 +/-     0.000
Eccentricity:         0.27897522 +/-    0.0001
Semi-Major Axis:     43.71932093 +/-    0.0040
Time of Perihelion: 2464073.1504 +/-      13.6
Perihelion:          31.52271388 +/-    0.0042
Aphelion:            55.91592798 +/-    0.0060
Period (y)              289.0802 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           33.32292783 +/-    0.0005
Ecliptic Y            2.49227345 +/-    0.0000
Ecliptic Z           -4.30745383 +/-    0.0001
Ecliptic XDOT        -0.00077168 +/-    0.0000
Ecliptic YDOT         0.00319318 +/-    0.0000
Ecliptic ZDOT         0.00007187 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   33.69257930 +/-    0.0005
Geocenter to KBO     32.69907774 +/-    0.0005
# Hcoef:  7.43

The following table shows the complete astrometric record for 13SJ102. 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 (13SJ102) followed by the observatory code and reference code for the source of the astrometry.

2013 09  28.12458  00 27 39.428  -05 15 21.45  23.4g 13SJ102   W84  C~4yR0      
2013 09  28.12458  00 27 39.43   -05 15 21.5   23.6g 13SJ102   W84  C~3clF      
2013 09  28.13265  00 27 39.38   -05 15 21.5   22.0i 13SJ102   W84  C~3clF      
2013 10  03.097396 00 27 12.53   -05 18 10.1   23.5g 13SJ102   W84  C~35bY      
2013 10  03.09792  00 27 12.533  -05 18 10.12  23.2g 13SJ102   W84  C~4yR0      
2013 10  04.18090  00 27 06.671  -05 18 45.89  22.6r 13SJ102   W84  C~4yR0      
2013 10  04.18090  00 27 06.67   -05 18 45.9   22.5r 13SJ102   W84  C~3clF      
2013 10  13.22812  00 26 18.409  -05 23 29.01  22.1i 13SJ102   W84  C~4yR0      
2013 10  13.22812  00 26 18.41   -05 23 29.0   22.4i 13SJ102   W84  C~3clF      
2013 10  13.23093  00 26 18.388  -05 23 29.08  22.0z 13SJ102   W84  C~4yR0      
2013 10  13.23093  00 26 18.39   -05 23 29.1   22.2z 13SJ102   W84  C~3clF      
2013 11  08.07750  00 24 17.597  -05 33 14.92  23.1r 13SJ102   W84  C~4yR0      
2013 11  08.07750  00 24 17.60   -05 33 14.9   22.9r 13SJ102   W84  C~3clF      
2013 11  08.07887  00 24 17.590  -05 33 15.03  22.4i 13SJ102   W84  C~4yR1      
2013 11  08.07887  00 24 17.59   -05 33 15.0   22.6i 13SJ102   W84  C~3clF      
2013 11  08.08025  00 24 17.584  -05 33 14.90  22.1z 13SJ102   W84  C~4yR1      
2013 11  08.08025  00 24 17.58   -05 33 14.9   22.2z 13SJ102   W84  C~3clF      
2014 10  03.27155  00 34 53.274  -04 28 06.58  22.5r 13SJ102   W84  C~4yR1      
2014 11  13.12408  00 31 35.423  -04 44 57.23  22.8r 13SJ102   W84  C~4yR1      
2014 11  13.12408  00 31 35.42   -04 44 57.2   22.9r 13SJ102   W84  C~3clF      
2014 11  14.06166  00 31 31.99   -04 45 08.9   22.7i 13SJ102   W84  C~3clF      
2014 11  15.03684  00 31 28.51   -04 45 20.2   23.0r 13SJ102   W84  C~3clF      
2014 11  15.075301 00 31 28.36   -04 45 20.8   22.3i 13SJ102   W84  C~35bY      
2014 11  15.07583  00 31 28.363  -04 45 20.81  22.1i 13SJ102   W84  C~4yR1      
2014 11  15.07583  00 31 28.36   -04 45 20.8   22.1i 13SJ102   W84  C~3clF      
2014 11  15.11946  00 31 28.205  -04 45 21.24  22.1z 13SJ102   W84  C~4yR1      
2014 11  15.11946  00 31 28.20   -04 45 21.2   22.2z 13SJ102   W84  C~3clF      
2014 11  21.10212  00 31 08.599  -04 46 15.99  22.0z 13SJ102   W84  C~4yR1      
2014 11  21.10212  00 31 08.59   -04 46 15.9   22.6z 13SJ102   W84  C~3clF      
2016 08  26.31312  00 53 28.071  -02 23 28.41  22.5r 13SJ102   W84  C~4yR1      
2016 08  26.31312  00 53 28.07   -02 23 28.4   22.7r 13SJ102   W84  C~3clF      
2016 08  26.31450  00 53 28.062  -02 23 28.51  22.4i 13SJ102   W84  C~4yR1      
2016 08  26.31450  00 53 28.06   -02 23 28.5   22.4i 13SJ102   W84  C~3clF      
2016 11  05.20496  00 47 31.348  -03 01 27.55  22.4i 13SJ102   W84  C~4yR1      
2016 11  05.20496  00 47 31.35   -03 01 27.5   22.5i 13SJ102   W84  C~3clF      
2016 11  06.18839  00 47 26.885  -03 01 47.06  22.6r 13SJ102   W84  C~4yR1      
2016 11  06.18839  00 47 26.88   -03 01 47.1   22.6r 13SJ102   W84  C~3clF      
2016 11  06.18978  00 47 26.878  -03 01 47.10  23.5g 13SJ102   W84  C~4yR1      
2016 11  06.18978  00 47 26.88   -03 01 47.1   23.5g 13SJ102   W84  C~3clF      
2016 11  07.10960  00 47 22.761  -03 02 04.85  21.3z 13SJ102   W84  C~4yR1      
2016 11  07.10960  00 47 22.77   -03 02 04.7   21.8z 13SJ102   W84  C~3clF      
2016 11  25.10179  00 46 14.988  -03 05 55.14  22.6r 13SJ102   W84  C~4yR1      
2016 11  25.10179  00 46 14.99   -03 05 55.1   22.9r 13SJ102   W84  C~3clF      
2016 11  26.09236  00 46 12.078  -03 06 01.07  23.9g 13SJ102   W84  C~4yR1      
2016 11  26.09236  00 46 12.08   -03 06 01.1   23.9g 13SJ102   W84  C~3clF      
2017 08  28.35853  01 01 11.387  -01 32 15.13  22.7r 13SJ102   W84  C~4yR1      
2017 08  28.35991  01 01 11.381  -01 32 15.20  22.3i 13SJ102   W84  C~4yR1      
2017 08  28.36129  01 01 11.376  -01 32 15.27  23.9g 13SJ102   W84  C~4yR1      
2017 09  14.31403  00 59 57.100  -01 42 02.21  22.3z 13SJ102   W84  C~4yR1      
2017 09  24.28696  00 59 06.042  -01 48 01.58  22.4r 13SJ102   W84  C~4yR1      
2017 09  24.32046  00 59 05.863  -01 48 02.84  22.4i 13SJ102   W84  C~4yR1      
2017 09  24.32185  00 59 05.853  -01 48 02.93  23.1g 13SJ102   W84  C~4yR1      
2018 10  10.27473  01 05 37.179  -01 04 05.84  22.1i 13SJ102   W84  C~4yR1      
2018 10  10.27611  01 05 37.171  -01 04 05.82  22.5r 13SJ102   W84  C~4yR1      
2018 10  10.27748  01 05 37.166  -01 04 05.96  23.3g 13SJ102   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    -0.04       0.00    -0.17
     2   0.0000      0.00    -0.01       0.00    -0.22
     3   0.0000      0.00    -0.10       0.00     0.06
     4   0.0136      0.00    -0.08       0.00     0.03
     5   0.0136      0.00     0.00       0.00     0.03
     6   0.0166      0.00    -0.06       0.00     0.08
     7   0.0166      0.00    -0.05       0.00     0.09
     8   0.0414      0.00     0.07       0.00     0.04
     9   0.0414      0.00     0.06       0.00     0.03
    10   0.0414      0.00    -0.00       0.00     0.02
    11   0.0414      0.00    -0.03       0.00     0.04
    12   0.1121      0.00     0.05       0.00     0.02
    13   0.1121      0.00     0.09       0.00     0.04
    14   0.1121      0.00     0.03       0.00    -0.04
    15   0.1121      0.00     0.03       0.00    -0.07
    16   0.1121      0.00    -0.04       0.00     0.08
    17   0.1121      0.00     0.02       0.00     0.08
    18   1.0134      0.00     0.04       0.00    -0.01
    19   1.1253      0.00    -0.01       0.00     0.06
    20   1.1253      0.00     0.03       0.00     0.03
    21   1.1278      0.00    -0.06       0.00    -0.02
    22   1.1305      0.00     0.11       0.00     0.11
    23   1.1306      0.00    -0.04       0.00    -0.05
    24   1.1306      0.00    -0.01       0.00    -0.05
    25   1.1306      0.00     0.04       0.00    -0.06
    26   1.1307      0.00    -0.03       0.00     0.05
    27   1.1307      0.00     0.05       0.00     0.01
    28   1.1471      0.00    -0.06       0.00    -0.04
    29   1.1471      0.00     0.07       0.00    -0.13
    30   2.9109      0.00     0.06       0.00    -0.00
    31   2.9109      0.00     0.08       0.00    -0.01
    32   2.9109      0.00    -0.01       0.00    -0.06
    33   2.9109      0.00     0.02       0.00    -0.07
    34   3.1049      0.00     0.05       0.00     0.09
    35   3.1049      0.00     0.02       0.00     0.04
    36   3.1076      0.00    -0.08       0.00    -0.03
    37   3.1076      0.00    -0.01       0.00     0.01
    38   3.1076      0.00     0.01       0.00     0.00
    39   3.1076      0.00    -0.02       0.00     0.00
    40   3.1102      0.00     0.01       0.00     0.07
    41   3.1102      0.00    -0.13       0.00    -0.08
    42   3.1594      0.00    -0.10       0.00     0.03
    43   3.1594      0.00    -0.13       0.00    -0.01
    44   3.1621      0.00     0.18       0.00    -0.05
    45   3.1621      0.00     0.15       0.00    -0.02
    46   3.9158      0.00     0.02       0.00     0.09
    47   3.9158      0.00     0.01       0.00     0.06
    48   3.9158      0.00     0.01       0.00     0.04
    49   3.9622      0.00     0.05       0.00    -0.03
    50   3.9895      0.00     0.00       0.00     0.05
    51   3.9896      0.00     0.03       0.00    -0.00
    52   3.9896      0.00    -0.01       0.00    -0.04
    53   5.0326      0.00    -0.03       0.00    -0.02
    54   5.0326      0.00    -0.03       0.00     0.05
    55   5.0326      0.00     0.01       0.00    -0.05

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.

13SJ102    quality flag:3

Type:         7:4EEE    7:4EEE    7:4EEE

axisobj        43.985    43.984    43.985
ecceobj         0.282     0.282     0.282
incobj          7.349     7.349     7.349
qmin           31.144    31.147    31.095
qmax           57.029    57.025    57.090
amean          43.726    43.726    43.726
amin           43.211    43.220    43.207
amax           44.333    44.327    44.325
emean           0.273     0.273     0.274
emin            0.257     0.259     0.260
emax            0.288     0.287     0.288
imean           5.885     5.838     5.833
imin            5.065     5.065     5.065
imax            6.852     6.771     6.669
excite_mean     0.292     0.292     0.292
fracstop        1.000     1.000     1.000
cjmean          2.995     2.995     2.995

libcent 0       178.5     178.7     178.4
libamp  0        96.6      99.4      98.0
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       184.9     183.2     183.5
kozaiamp        180.0     180.0     180.0