Orbit Fit and Astrometric record for 13SY100

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: 13SY100   
# Created Fri Dec 15 02:37:53 2017
# Orbit generated from Bernstein formalism
# Fitting   29 observations of   29
# Arc:   4.06y
# First observation: 2013/08/08
#  Last observation: 2017/08/30
Preliminary a, adot, b, bdot, g, gdot:
  -0.000135   0.020233   0.000050   0.010325   0.023672   0.000000
# Chi-squared of fit:     8.77 DOF:   52 RMS:  0.10
# Min/Max residuals:    -0.21    0.23
# Exact a, adot, b, bdot, g, gdot:
  1.370210E-05  2.042449E-02  7.557668E-06  1.046411E-02  2.390858E-02  4.191701E-03
# Covariance matrix:
  1.8004E-13 -2.6837E-14 -2.3401E-15  8.6700E-15  1.3069E-13  2.0983E-13
 -2.6837E-14  2.7121E-13 -4.3130E-14  1.3862E-13  1.4314E-13  3.2925E-12
 -2.3401E-15 -4.3130E-14  8.8449E-14 -5.2470E-14 -2.7974E-14 -5.8291E-13
  8.6700E-15  1.3862E-13 -5.2470E-14  1.0478E-13  9.1417E-14  1.8758E-12
  1.3069E-13  1.4314E-13 -2.7974E-14  9.1417E-14  2.5397E-13  2.1764E-12
  2.0983E-13  3.2925E-12 -5.8291E-13  1.8758E-12  2.1764E-12  4.4561E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.842568   13.161519    0.855449   -0.008026   -0.547693  2456512.972828
# Heliocentric elements and errors
Epoch:              2456510.5000  =  2013/08/06
Mean Anomaly:           73.10307 +/-     0.035
Argument of Peri:      266.60873 +/-     0.021
Long of Asc Node:       13.63840 +/-     0.000
Inclination:            27.02637 +/-     0.000
Eccentricity:         0.16124300 +/-    0.0003
Semi-Major Axis:     43.32279365 +/-    0.0053
Time of Perihelion: 2435360.7026 +/-       9.5
Perihelion:          36.33729658 +/-    0.0132
Aphelion:            50.30829073 +/-    0.0138
Period (y)              285.1562 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           41.45083648 +/-    0.0009
Ecliptic Y            8.81742673 +/-    0.0002
Ecliptic Z           -0.61469332 +/-    0.0000
Ecliptic XDOT        -0.00005427 +/-    0.0000
Ecliptic YDOT         0.00238986 +/-    0.0000
Ecliptic ZDOT         0.00119123 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.38274067 +/-    0.0008
Geocenter to KBO     41.82599305 +/-    0.0009
# Hcoef:  7.90

The following table shows the complete astrometric record for 13SY100. 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 (13SY100) followed by the observatory code and reference code for the source of the astrometry.

2013 08  08.47205  00 49 45.010  +04 25 12.86  24.5r 13SY100   568  C~2NKN      
2013 08  08.51087  00 49 44.933  +04 25 12.75  24.0r 13SY100   568  C~2NKN      
2013 08  31.55693  00 48 34.892  +04 19 57.77  23.8r 13SY100   568  C~2NKN      
2013 09  01.44270  00 48 31.575  +04 19 41.78  24.0r 13SY100   568  C~2NKN      
2013 09  01.48164  00 48 31.430  +04 19 41.16  24.1r 13SY100   568  C~2NKN      
2013 09  05.42217  00 48 16.118  +04 18 27.04  24.1r 13SY100   568  C~2NKN      
2013 09  05.46104  00 48 15.952  +04 18 26.40  24.2r 13SY100   568  C~2NKN      
2013 09  29.35316  00 46 30.741  +04 09 47.09  23.8r 13SY100   568  C~2NKN      
2013 09  29.39201  00 46 30.565  +04 09 46.10  23.7r 13SY100   568  C~2NKN      
2013 09  29.43584  00 46 30.350  +04 09 45.24  23.9r 13SY100   568  C~2NKN      
2013 10  02.42685  00 46 16.301  +04 08 35.31  23.8r 13SY100   568  C~2NKN      
2013 10  07.34703  00 45 53.135  +04 06 40.37  23.9r 13SY100   568  C~2NKN      
2013 10  09.48473  00 45 43.070  +04 05 50.69  24.8r 13SY100   568  C~2NKN      
2013 11  27.27905  00 42 32.354  +03 51 21.63  23.9r 13SY100   568  C~2NKN      
2013 11  27.33088  00 42 32.206  +03 51 21.03  24.1r 13SY100   568  C~2NKN      
2013 12  05.23686  00 42 14.541  +03 50 26.54  24.4r 13SY100   568  C~2NKN      
2014 08  24.48990  00 52 24.750  +05 22 26.77  23.8r 13SY100   568  C~2NKN      
2014 08  28.45816  00 52 11.296  +05 21 26.83  24.0r 13SY100   568  C~2NKN      
2014 08  28.46204  00 52 11.287  +05 21 26.75  23.9r 13SY100   568  C~2NKN      
2014 10  23.30330  00 48 05.892  +05 01 37.49  23.9r 13SY100   568  C~2NKN      
2014 10  27.27001  00 47 48.352  +05 00 12.38  24.2r 13SY100   568  C~2NKN      
2014 11  24.26724  00 46 04.913  +04 52 20.18        13SY100   568  C~2NKN      
2014 12  17.34724  00 45 19.941  +04 50 03.56  24.3r 13SY100   568  C~2NKN      
2015 01  18.24063  00 45 34.581  +04 54 56.77  23.9r 13SY100   568  C~2NKN      
2017 07  17.61130  01 03 33.684  +08 21 37.45        13SY100   568  C~2NKN      
2017 07  23.61385  01 03 31.205  +08 22 12.75  24.2w 13SY100   568  C~2NKN      
2017 08  25.52260  01 02 26.203  +08 20 03.16  24.3w 13SY100   568  C~2NKN      
2017 08  30.46454  01 02 09.790  +08 19 00.88  24.4w 13SY100   568  C~2NKN      
2017 08  30.51718  01 02 09.604  +08 19 00.22  24.1w 13SY100   568  C~2NKN      

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    -0.13
  2   0.0001     -1.10     0.23       0.35     0.01
  3   0.0632  -1088.73    -0.21     117.28     0.01
  4   0.0656  -1140.66    -0.08     121.84    -0.05
  5   0.0657  -1142.89     0.03     122.11    -0.01
  6   0.0765  -1382.73     0.17     142.89    -0.21
  7   0.0766  -1385.26     0.10     143.27    -0.06
  8   0.1420  -3037.34     0.03     277.47     0.14
  9   0.1421  -3040.15     0.11     277.58     0.01
 10   0.1423  -3043.45     0.09     278.04     0.19
 11   0.1505  -3264.32    -0.18     295.50     0.07
 12   0.1639  -3628.41    -0.16     324.68    -0.05
 13   0.1698  -3786.51    -0.09     337.61    -0.08
 14   0.3034  -6755.27     0.12     651.00     0.07
 15   0.3035  -6757.54    -0.10     651.32     0.02
 16   0.3252  -7022.50     0.02     704.47     0.12
 17   1.0432   3533.24     0.05    2238.76     0.00
 18   1.0540   3324.72    -0.10    2261.37     0.02
 19   1.0540   3324.57    -0.04    2261.35    -0.02
 20   1.2069   -515.92    -0.06    2588.95     0.08
 21   1.2178   -790.50    -0.04    2612.53    -0.03
 22   1.2944  -2398.43     0.14    2779.67    -0.04
 23   1.3576  -3070.88     0.06    2915.96    -0.14
 24   1.4450  -2754.99    -0.05    3100.69     0.07
 25   3.9401  16912.71     0.02    8346.46    -0.16
 26   3.9566  16892.13    -0.02    8393.34     0.04
 27   4.0467  15944.90    -0.09    8642.32     0.03
 28   4.0602  15694.39     0.03    8677.82     0.02
 29   4.0604  15691.57     0.07    8678.27     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.

13SY100    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        43.543    43.559    43.527
ecceobj         0.164     0.164     0.163
incobj         26.957    26.956    26.957
qmin           35.851    35.744    35.772
qmax           51.104    51.266    51.199
amean          43.345    43.345    43.327
amin           42.988    42.991    42.950
amax           43.740    43.754    43.755
emean           0.153     0.159     0.154
emin            0.137     0.146     0.138
emax            0.169     0.173     0.170
imean          27.198    27.093    27.154
imin           26.760    26.700    26.707
imax           27.575    27.435    27.595
excite_mean     0.482     0.483     0.482
fracstop        1.000     1.000     1.000
cjmean          2.803     2.803     2.803

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       176.2     178.7     179.0
kozaiamp        180.0     180.0     180.0