Orbit Fit and Astrometric record for 13SF101

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: 13SF101   
# Created Sat Dec 16 02:37:57 2017
# Orbit generated from Bernstein formalism
# Fitting   32 observations of   32
# Arc:   4.07y
# First observation: 2013/08/05
#  Last observation: 2017/08/30
Preliminary a, adot, b, bdot, g, gdot:
  -0.000058   0.020949  -0.000001   0.000433   0.022754   0.000000
# Chi-squared of fit:    13.84 DOF:   58 RMS:  0.12
# Min/Max residuals:    -0.35    0.28
# Exact a, adot, b, bdot, g, gdot:
  1.502606E-05  2.075381E-02  2.314190E-07  4.300693E-04  2.266281E-02  1.708603E-04
# Covariance matrix:
  1.4772E-13  7.7525E-15  1.6553E-16  7.4528E-16  1.2930E-13  4.8052E-13
  7.7525E-15  3.4639E-13 -1.2691E-15  6.9686E-15  1.9623E-13  4.2858E-12
  1.6553E-16 -1.2691E-15  6.3645E-14 -2.4728E-14 -3.9451E-16 -1.7242E-14
  7.4528E-16  6.9686E-15 -2.4728E-14  3.3507E-14  4.3992E-15  9.5419E-14
  1.2930E-13  1.9623E-13 -3.9451E-16  4.3992E-15  2.7008E-13  2.7355E-12
  4.8052E-13  4.2858E-12 -1.7242E-14  9.5419E-14  2.7355E-12  5.8694E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.603479   12.045140    0.871975   -0.005470   -0.522018  2456510.005588
# Heliocentric elements and errors
Epoch:              2456510.5000  =  2013/08/06
Mean Anomaly:          195.95018 +/-     0.365
Argument of Peri:      138.73609 +/-     0.365
Long of Asc Node:       37.79083 +/-     0.010
Inclination:             1.31944 +/-     0.000
Eccentricity:         0.05238159 +/-    0.0001
Semi-Major Axis:     42.50701555 +/-    0.0027
Time of Perihelion: 2502638.2848 +/-     102.6
Perihelion:          40.28043050 +/-    0.0056
Aphelion:            44.73360059 +/-    0.0058
Period (y)              277.1399 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           43.84358947 +/-    0.0010
Ecliptic Y            8.46694505 +/-    0.0002
Ecliptic Z           -0.46469486 +/-    0.0000
Ecliptic XDOT        -0.00050872 +/-    0.0000
Ecliptic YDOT         0.00245560 +/-    0.0000
Ecliptic ZDOT         0.00005188 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.65607951 +/-    0.0010
Geocenter to KBO     44.12515603 +/-    0.0010
# Hcoef:  7.91

The following table shows the complete astrometric record for 13SF101. 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 (13SF101) followed by the observatory code and reference code for the source of the astrometry.

2013 08  05.50481  00 45 15.132  +04 12 21.27  24.2r 13SF101   568  C~2NKO      
2013 08  05.55805  00 45 15.042  +04 12 20.63  24.3r 13SF101   568  C~2NKO      
2013 08  08.48371  00 45 09.415  +04 11 43.66  24.6r 13SF101   568  C~2NKO      
2013 08  08.52252  00 45 09.329  +04 11 43.13  24.1r 13SF101   568  C~2NKO      
2013 08  31.56880  00 44 05.587  +04 04 50.49  24.0r 13SF101   568  C~2NKO      
2013 09  01.45434  00 44 02.549  +04 04 30.65  24.6r 13SF101   568  C~2NKO      
2013 09  01.49328  00 44 02.416  +04 04 29.93  24.4r 13SF101   568  C~2NKO      
2013 09  01.50224  00 44 02.387  +04 04 29.78  24.6r 13SF101   568  C~2NKO      
2013 09  05.43382  00 43 48.420  +04 03 00.43  24.0r 13SF101   568  C~2NKO      
2013 09  05.47268  00 43 48.261  +04 02 59.58  24.3r 13SF101   568  C~2NKO      
2013 09  29.36482  00 42 12.358  +03 52 50.41  24.2r 13SF101   568  C~2NKO      
2013 09  29.40366  00 42 12.184  +03 52 49.43  23.9r 13SF101   568  C~2NKO      
2013 09  29.50581  00 42 11.748  +03 52 46.82  24.4r 13SF101   568  C~2NKO      
2013 09  29.51034  00 42 11.746  +03 52 46.26  24.0r 13SF101   568  C~2NKO      
2013 10  05.36346  00 41 46.748  +03 50 09.07  24.3r 13SF101   568  C~2NKO      
2013 10  06.37195  00 41 42.432  +03 49 41.98  25.0r 13SF101   568  C~2NKO      
2013 10  06.43634  00 41 42.148  +03 49 40.09  24.0r 13SF101   568  C~2NKO      
2013 10  07.35873  00 41 38.213  +03 49 14.94  24.1r 13SF101   568  C~2NKO      
2013 10  09.49639  00 41 29.111  +03 48 18.07  24.0r 13SF101   568  C~2NKO      
2013 11  27.29631  00 38 39.609  +03 30 53.38  24.1r 13SF101   568  C~2NKO      
2013 11  27.34255  00 38 39.526  +03 30 52.85  24.3r 13SF101   568  C~2NKO      
2013 12  05.24487  00 38 24.820  +03 29 27.24        13SF101   568  C~2NKO      
2014 08  24.50155  00 48 51.847  +04 36 40.97  24.2r 13SF101   568  C~2NKO      
2014 08  28.47368  00 48 39.586  +04 35 22.54  24.2r 13SF101   568  C~2NKO      
2014 10  23.30719  00 44 56.101  +04 11 56.00  24.1r 13SF101   568  C~2NKO      
2014 10  27.27389  00 44 40.271  +04 10 18.17  24.4r 13SF101   568  C~2NKO      
2014 11  24.28665  00 43 08.251  +04 00 56.31  24.0r 13SF101   568  C~2NKO      
2014 11  25.31299  00 43 05.736  +04 00 41.34  24.2r 13SF101   568  C~2NKO      
2015 01  17.25897  00 42 51.024  +04 00 05.21  24.3r 13SF101   568  C~2NKO      
2017 08  25.50837  01 01 57.460  +06 03 29.32  24.4w 13SF101   568  C~2NKO      
2017 08  30.45058  01 01 42.637  +06 01 56.46  24.5w 13SF101   568  C~2NKO      
2017 08  30.49734  01 01 42.490  +06 01 55.62  24.5w 13SF101   568  C~2NKO      

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    -0.11       0.00     0.01
  2   0.0001     -1.49     0.03      -0.06    -0.05
  3   0.0082    -93.42     0.07      -1.27     0.11
  4   0.0083    -94.81     0.00      -1.25     0.12
  5   0.0714  -1133.88     0.05      -9.02     0.12
  6   0.0738  -1183.47    -0.09      -9.54    -0.16
  7   0.0739  -1185.59     0.03      -9.42    -0.05
  8   0.0739  -1186.04     0.08      -9.39    -0.03
  9   0.0847  -1413.33     0.04     -10.05     0.05
 10   0.0848  -1415.85    -0.14      -9.90     0.19
 11   0.1502  -2975.08    -0.06      -9.94     0.05
 12   0.1503  -2977.86    -0.11      -9.83     0.14
 13   0.1506  -2984.88     0.03      -9.68     0.22
 14   0.1506  -2985.13     0.10     -10.18    -0.28
 15   0.1666  -3391.03     0.05      -8.58     0.08
 16   0.1694  -3461.09     0.01      -8.25     0.13
 17   0.1696  -3465.74    -0.10      -8.33     0.00
 18   0.1721  -3529.80    -0.25      -8.44    -0.35
 19   0.1779  -3677.46     0.23      -7.50    -0.14
 20   0.3115  -6422.95    -0.02      24.56     0.12
 21   0.3117  -6424.30     0.28      24.56     0.05
 22   0.3333  -6660.66    -0.14      32.08     0.01
 23   1.0513   3554.05     0.10      81.94    -0.08
 24   1.0622   3354.60     0.01      81.00    -0.01
 25   1.2151   -272.00    -0.11      87.80    -0.19
 26   1.2259   -528.22     0.05      90.13     0.02
 27   1.3026  -2015.15     0.05     110.45    -0.09
 28   1.3054  -2055.65    -0.11     111.37    -0.08
 29   1.4504  -2272.43     0.03     164.13    -0.05
 30   4.0548  16422.39    -0.02     349.90    -0.01
 31   4.0683  16181.08    -0.03     349.08     0.05
 32   4.0684  16178.72     0.04     349.14     0.10

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.

13SF101    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        42.719    42.727    42.711
ecceobj         0.047     0.046     0.047
incobj          1.316     1.316     1.316
qmin           36.990    36.723    37.125
qmax           48.311    48.619    48.024
amean          42.488    42.497    42.480
amin           42.110    42.106    42.088
amax           42.873    42.902    42.873
emean           0.072     0.074     0.069
emin            0.025     0.026     0.024
emax            0.127     0.133     0.122
imean           2.187     2.202     2.164
imin            0.000     0.000     0.000
imax            4.328     4.555     4.119
excite_mean     0.083     0.085     0.081
fracstop        1.000     1.000     1.000
cjmean          3.074     3.074     3.075

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       182.5     183.3     180.8
kozaiamp        179.9     180.0     180.0