Orbit Fit and Astrometric record for 13SX100

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: 13SX100   
# Created Sat Dec 16 02:37:57 2017
# Orbit generated from Bernstein formalism
# Fitting   33 observations of   33
# Arc:   4.07y
# First observation: 2013/08/05
#  Last observation: 2017/08/30
Preliminary a, adot, b, bdot, g, gdot:
  -0.000074   0.023309  -0.000001   0.000283   0.023960   0.000000
# Chi-squared of fit:    11.86 DOF:   60 RMS:  0.11
# Min/Max residuals:    -0.38    0.37
# Exact a, adot, b, bdot, g, gdot:
  1.553346E-05  2.308255E-02  1.905769E-07  2.806684E-04  2.384104E-02  1.411213E-04
# Covariance matrix:
  1.1606E-13 -4.7674E-14  3.3504E-16 -2.5158E-16  6.1978E-14 -2.3912E-13
 -4.7674E-14  2.2854E-13 -3.6664E-16  2.4121E-15  1.1654E-13  2.4506E-12
  3.3504E-16 -3.6664E-16  7.1946E-14 -2.7195E-14  3.1145E-16 -4.3807E-15
 -2.5158E-16  2.4121E-15 -2.7195E-14  2.6519E-14  1.3789E-15  2.9254E-14
  6.1978E-14  1.1654E-13  3.1145E-16  1.3789E-15  1.9675E-13  1.4297E-12
 -2.3912E-13  2.4506E-12 -4.3807E-15  2.9254E-14  1.4297E-12  2.9723E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   -1.097726   12.868074    0.879486   -0.009729   -0.509204  2456509.993918
# Heliocentric elements and errors
Epoch:              2456500.5000  =  2013/07/27
Mean Anomaly:          298.67873 +/-     0.359
Argument of Peri:        5.11246 +/-     0.386
Long of Asc Node:       69.79332 +/-     0.015
Inclination:             1.27696 +/-     0.000
Eccentricity:         0.01907570 +/-    0.0002
Semi-Major Axis:     42.84367873 +/-    0.0027
Time of Perihelion: 2473948.1604 +/-     102.0
Perihelion:          42.02640566 +/-    0.0092
Aphelion:            43.66095180 +/-    0.0092
Period (y)              280.4390 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           41.57570941 +/-    0.0008
Ecliptic Y            8.59877781 +/-    0.0002
Ecliptic Z           -0.80350980 +/-    0.0000
Ecliptic XDOT        -0.00058017 +/-    0.0000
Ecliptic YDOT         0.00258707 +/-    0.0000
Ecliptic ZDOT         0.00003206 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.46321020 +/-    0.0007
Geocenter to KBO     41.94447361 +/-    0.0008
# Hcoef:  7.91

The following table shows the complete astrometric record for 13SX100. 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 (13SX100) followed by the observatory code and reference code for the source of the astrometry.

2013 08  05.49314  00 49 03.814  +04 04 16.01  24.2r 13SX100   568  C~2NKN      
2013 08  05.54160  00 49 03.725  +04 04 15.21  24.4r 13SX100   568  C~2NKN      
2013 08  05.54632  00 49 03.727  +04 04 15.42  24.0r 13SX100   568  C~2NKN      
2013 08  08.47205  00 48 58.175  +04 03 36.67  23.8r 13SX100   568  C~2NKN      
2013 08  08.51087  00 48 58.088  +04 03 35.88  24.4r 13SX100   568  C~2NKN      
2013 08  31.55693  00 47 53.556  +03 56 24.01  23.8r 13SX100   568  C~2NKN      
2013 09  01.44270  00 47 50.447  +03 56 03.42  24.3r 13SX100   568  C~2NKN      
2013 09  01.48164  00 47 50.308  +03 56 02.56  24.1r 13SX100   568  C~2NKN      
2013 09  05.42217  00 47 35.941  +03 54 28.91  24.1r 13SX100   568  C~2NKN      
2013 09  05.46104  00 47 35.793  +03 54 27.92  23.9r 13SX100   568  C~2NKN      
2013 09  29.35316  00 45 56.535  +03 43 51.43  24.1r 13SX100   568  C~2NKN      
2013 09  29.39201  00 45 56.361  +03 43 50.24  24.0r 13SX100   568  C~2NKN      
2013 09  29.43584  00 45 56.174  +03 43 49.17  24.3r 13SX100   568  C~2NKN      
2013 10  02.42685  00 45 42.885  +03 42 25.12  23.0r 13SX100   568  C~2NKN      
2013 10  09.48473  00 45 11.467  +03 39 07.12  23.9r 13SX100   568  C~2NKN      
2013 11  27.27905  00 42 13.045  +03 21 04.47  23.8r 13SX100   568  C~2NKN      
2013 11  27.33088  00 42 12.930  +03 21 03.57  24.0r 13SX100   568  C~2NKN      
2014 07  23.57931  00 54 10.812  +04 37 50.09  24.0r 13SX100   568  C~2NKN      
2014 07  27.55990  00 54 07.709  +04 37 24.99  24.2r 13SX100   568  C~2NKN      
2014 08  22.62356  00 53 16.624  +04 31 32.05  25.0r 13SX100   568  C~2NKN      
2014 08  24.48990  00 53 11.127  +04 30 55.56  24.1r 13SX100   568  C~2NKN      
2014 08  28.45816  00 52 58.687  +04 29 33.70  24.0r 13SX100   568  C~2NKN      
2014 08  28.46204  00 52 58.676  +04 29 33.62  24.0r 13SX100   568  C~2NKN      
2014 10  27.27001  00 48 50.199  +04 03 24.81  23.5r 13SX100   568  C~2NKN      
2014 10  29.31783  00 48 41.813  +04 02 33.62  24.0r 13SX100   568  C~2NKN      
2014 11  24.26724  00 47 12.909  +03 53 43.49  24.0r 13SX100   568  C~2NKN      
2015 01  18.24571  00 46 54.140  +03 53 22.87  24.4r 13SX100   568  C~2NKN      
2015 08  20.52724  00 58 16.537  +05 03 56.99  24.1r 13SX100   568  C~2NKN      
2015 12  07.36547  00 51 36.266  +04 22 48.94  24.2w 13SX100   568  C~2NKN      
2017 08  25.54688  01 07 49.523  +06 05 15.02  24.2w 13SX100   568  C~2NKN      
2017 08  25.62549  01 07 49.287  +06 05 13.49  24.2w 13SX100   568  C~2NKN      
2017 08  30.48798  01 07 34.608  +06 03 38.81  24.3w 13SX100   568  C~2NKN      
2017 08  30.54049  01 07 34.435  +06 03 37.84  24.7w 13SX100   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    -0.05       0.00    -0.00
  2   0.0001     -1.54    -0.11      -0.22    -0.18
  3   0.0001     -1.43     0.15      -0.04     0.00
  4   0.0082    -93.03     0.24      -3.44     0.12
  5   0.0083    -94.54     0.06      -3.66    -0.07
  6   0.0714  -1152.11    -0.04     -25.95     0.09
  7   0.0738  -1202.98    -0.07     -26.82    -0.07
  8   0.0739  -1205.23    -0.03     -26.80    -0.04
  9   0.0847  -1439.74    -0.04     -29.40     0.07
 10   0.0848  -1442.17    -0.06     -29.45     0.02
 11   0.1502  -3058.52    -0.09     -37.22     0.07
 12   0.1503  -3061.38    -0.12     -37.31    -0.03
 13   0.1504  -3064.38     0.09     -37.20     0.06
 14   0.1586  -3280.37    -0.05     -37.10     0.03
 15   0.1779  -3790.80     0.37     -36.14    -0.38
 16   0.3115  -6674.73    -0.06       9.35     0.05
 17   0.3117  -6676.67    -0.04       9.20    -0.21
 18   0.9640   5014.42    -0.04      74.71     0.12
 19   0.9749   4961.89     0.08      69.53     0.16
 20   1.0462   4120.57    -0.05      40.02     0.06
 21   1.0513   4030.62     0.00      38.23     0.02
 22   1.0622   3827.33    -0.10      34.87     0.02
 23   1.0622   3827.15    -0.07      34.86     0.01
 24   1.2259   -207.59    -0.08      32.03     0.07
 25   1.2316   -343.10     0.06      33.66     0.05
 26   1.3026  -1774.94    -0.12      62.92     0.20
 27   1.4531  -2041.71     0.04     153.29    -0.06
 28   2.0398   9012.04     0.03     100.31    -0.03
 29   2.3378   2533.91     0.14     139.80    -0.04
 30   4.0549  18365.16    -0.00     212.08     0.01
 31   4.0551  18361.29    -0.09     212.01    -0.03
 32   4.0684  18120.91     0.03     208.15    -0.09
 33   4.0686  18118.14     0.05     208.24     0.01

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.

13SX100    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.065    43.073    43.057
ecceobj         0.020     0.020     0.020
incobj          1.277     1.277     1.277
qmin           40.561    40.582    40.552
qmax           45.241    45.258    45.255
amean          42.822    42.830    42.814
amin           42.495    42.507    42.485
amax           43.161    43.165    43.151
emean           0.030     0.030     0.030
emin            0.008     0.007     0.008
emax            0.049     0.049     0.049
imean           1.193     1.188     1.198
imin            0.385     0.381     0.389
imax            1.688     1.683     1.694
excite_mean     0.037     0.037     0.037
fracstop        1.000     1.000     1.000
cjmean          3.086     3.086     3.086

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       182.4     181.9     183.0
kozaiamp        179.9     179.9     180.0