Orbit Fit and Astrometric record for 13SD101

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: 13SD101   
# Created Fri Dec 15 02:37:53 2017
# Orbit generated from Bernstein formalism
# Fitting   38 observations of   38
# Arc:   4.07y
# First observation: 2013/08/05
#  Last observation: 2017/08/30
Preliminary a, adot, b, bdot, g, gdot:
  -0.000162   0.023325  -0.000002   0.000542   0.023787   0.000000
# Chi-squared of fit:    11.17 DOF:   70 RMS:  0.10
# Min/Max residuals:    -0.35    0.36
# Exact a, adot, b, bdot, g, gdot:
  1.500420E-05  2.322601E-02  3.129766E-07  5.412230E-04  2.384910E-02  6.313933E-04
# Covariance matrix:
  1.1884E-13 -1.7415E-14  2.0522E-16  1.7406E-16  8.2955E-14  1.2252E-13
 -1.7415E-14  2.6251E-13 -1.3685E-15  5.9001E-15  1.4110E-13  2.8204E-12
  2.0522E-16 -1.3685E-15  5.9022E-14 -2.1857E-14 -4.9658E-16 -1.5848E-14
  1.7406E-16  5.9001E-15 -2.1857E-14  2.3214E-14  3.5650E-15  6.9577E-14
  8.2955E-14  1.4110E-13 -4.9658E-16  3.5650E-15  1.9123E-13  1.7570E-12
  1.2252E-13  2.8204E-12 -1.5848E-14  6.9577E-14  1.7570E-12  3.3306E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.899853   11.742401    0.869205   -0.008242   -0.526582  2456510.005588
# Heliocentric elements and errors
Epoch:              2456510.5000  =  2013/08/06
Mean Anomaly:           11.25466 +/-     0.603
Argument of Peri:      314.22468 +/-     0.632
Long of Asc Node:       44.57528 +/-     0.007
Inclination:             1.58841 +/-     0.000
Eccentricity:         0.02220887 +/-    0.0001
Semi-Major Axis:     43.41089030 +/-    0.0025
Time of Perihelion: 2453244.4241 +/-     175.0
Perihelion:          42.44678365 +/-    0.0042
Aphelion:            44.37499696 +/-    0.0043
Period (y)              286.0265 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           41.74006505 +/-    0.0008
Ecliptic Y            7.79155058 +/-    0.0001
Ecliptic Z           -0.65844843 +/-    0.0000
Ecliptic XDOT        -0.00047694 +/-    0.0000
Ecliptic YDOT         0.00262462 +/-    0.0000
Ecliptic ZDOT         0.00006113 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.46616117 +/-    0.0007
Geocenter to KBO     41.93030644 +/-    0.0008
# Hcoef:  7.41

The following table shows the complete astrometric record for 13SD101. 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 (13SD101) followed by the observatory code and reference code for the source of the astrometry.

2013 08  05.50481  00 44 35.898  +03 48 53.68  23.6r 13SD101   568  C~2NKO      
2013 08  05.55805  00 44 35.793  +03 48 52.98  23.5r 13SD101   568  C~2NKO      
2013 08  08.48371  00 44 29.989  +03 48 13.77  23.9r 13SD101   568  C~2NKO      
2013 08  08.52252  00 44 29.880  +03 48 12.87  23.6r 13SD101   568  C~2NKO      
2013 08  31.56880  00 43 23.653  +03 40 57.40  23.2r 13SD101   568  C~2NKO      
2013 09  01.45434  00 43 20.489  +03 40 36.80  23.7r 13SD101   568  C~2NKO      
2013 09  01.49328  00 43 20.349  +03 40 35.94  23.3r 13SD101   568  C~2NKO      
2013 09  01.50224  00 43 20.309  +03 40 35.71  23.2r 13SD101   568  C~2NKO      
2013 09  05.43382  00 43 05.790  +03 39 01.71  23.8r 13SD101   568  C~2NKO      
2013 09  05.47268  00 43 05.608  +03 39 00.61  24.4r 13SD101   568  C~2NKO      
2013 09  29.36482  00 41 25.731  +03 28 24.02  24.0r 13SD101   568  C~2NKO      
2013 09  29.40366  00 41 25.562  +03 28 22.80  24.0r 13SD101   568  C~2NKO      
2013 09  29.50581  00 41 25.098  +03 28 20.01  23.1r 13SD101   568  C~2NKO      
2013 09  29.51034  00 41 25.063  +03 28 19.82  23.0r 13SD101   568  C~2NKO      
2013 10  05.36346  00 40 59.055  +03 25 36.22  23.5r 13SD101   568  C~2NKO      
2013 10  06.37195  00 40 54.572  +03 25 07.86  23.1r 13SD101   568  C~2NKO      
2013 10  06.43634  00 40 54.273  +03 25 06.03  23.4r 13SD101   568  C~2NKO      
2013 10  07.35873  00 40 50.180  +03 24 40.40  23.2r 13SD101   568  C~2NKO      
2013 10  09.49639  00 40 40.681  +03 23 41.15  23.2r 13SD101   568  C~2NKO      
2013 11  27.29631  00 37 45.258  +03 05 53.25  23.1r 13SD101   568  C~2NKO      
2013 11  27.34255  00 37 45.147  +03 05 52.73        13SD101   568  C~2NKO      
2013 12  05.24487  00 37 30.246  +03 04 29.66  24.6r 13SD101   568  C~2NKO      
2014 06  25.60449  00 49 31.073  +04 22 42.99        13SD101   568  C~2NKO      
2014 06  26.60333  00 49 32.678  +04 22 52.15  23.9r 13SD101   568  C~2NKO      
2014 08  24.50155  00 48 41.622  +04 16 37.69  23.4r 13SD101   568  C~2NKO      
2014 08  28.47368  00 48 28.915  +04 15 15.37  23.2r 13SD101   568  C~2NKO      
2014 10  23.30719  00 44 36.454  +03 50 50.48  24.1r 13SD101   568  C~2NKO      
2014 10  27.27389  00 44 20.001  +03 49 09.61  23.5r 13SD101   568  C~2NKO      
2014 11  24.28665  00 42 44.724  +03 39 37.25  24.0r 13SD101   568  C~2NKO      
2014 11  25.31299  00 42 42.136  +03 39 22.40  23.7r 13SD101   568  C~2NKO      
2014 12  17.22935  00 42 07.092  +03 36 13.76  23.5r 13SD101   568  C~2NKO      
2014 12  17.28612  00 42 07.064  +03 36 13.67  23.8r 13SD101   568  C~2NKO      
2015 01  17.25897  00 42 29.607  +03 39 28.84  23.5r 13SD101   568  C~2NKO      
2017 07  17.61600  01 04 15.699  +06 00 35.33  23.5w 13SD101   568  C~2NKO      
2017 07  23.61854  01 04 14.799  +06 00 24.76        13SD101   568  C~2NKO      
2017 08  25.50837  01 03 18.105  +05 54 11.99  23.5w 13SD101   568  C~2NKO      
2017 08  30.45058  01 03 02.871  +05 52 35.49  23.6w 13SD101   568  C~2NKO      
2017 08  30.49734  01 03 02.716  +05 52 34.54  23.4w 13SD101   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     0.08       0.00     0.01
  2   0.0001     -1.72     0.06      -0.03    -0.00
  3   0.0082    -97.00     0.36      -2.22     0.14
  4   0.0083    -98.86    -0.12      -2.42    -0.04
  5   0.0714  -1181.50     0.03     -16.23     0.03
  6   0.0738  -1233.15    -0.04     -16.69    -0.02
  7   0.0739  -1235.41     0.03     -16.66     0.00
  8   0.0739  -1236.05    -0.08     -16.64     0.02
  9   0.0847  -1472.85     0.15     -18.26    -0.17
 10   0.0848  -1475.79    -0.35     -18.21    -0.12
 11   0.1502  -3101.13     0.07     -19.61     0.01
 12   0.1503  -3103.94     0.10     -19.74    -0.15
 13   0.1506  -3111.42     0.08     -19.59    -0.07
 14   0.1506  -3111.98    -0.14     -19.56    -0.04
 15   0.1666  -3534.47     0.02     -17.80     0.17
 16   0.1694  -3607.36     0.02     -17.63    -0.03
 17   0.1696  -3612.20    -0.09     -17.57    -0.02
 18   0.1721  -3678.65    -0.03     -17.17     0.06
 19   0.1779  -3832.78     0.00     -16.05     0.23
 20   0.3115  -6670.15    -0.00      30.28     0.03
 21   0.3117  -6671.89    -0.05      30.45     0.12
 22   0.3333  -6910.04    -0.03      41.53    -0.12
 23   0.8873   4858.86    -0.10     148.26     0.01
 24   0.8901   4884.55    -0.11     147.36     0.03
 25   1.0513   4034.98    -0.00      99.46    -0.03
 26   1.0622   3827.77     0.08      97.61     0.02
 27   1.2151     53.25    -0.10     104.29    -0.18
 28   1.2259   -212.83    -0.01     107.54     0.01
 29   1.3026  -1749.26     0.07     137.69    -0.04
 30   1.3054  -1790.73    -0.06     139.16     0.07
 31   1.3654  -2347.39    -0.06     170.59     0.06
 32   1.3656  -2347.81     0.16     170.67     0.03
 33   1.4504  -1960.86     0.04     218.39     0.02
 34   3.9483  19371.79    -0.05     460.29     0.01
 35   3.9647  19355.19    -0.00     455.65    -0.04
 36   4.0548  18423.32     0.01     435.82     0.01
 37   4.0683  18174.44     0.03     433.97     0.00
 38   4.0684  18171.92     0.02     433.99     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.

13SD101    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.646    43.653    43.638
ecceobj         0.028     0.028     0.028
incobj          1.586     1.586     1.586
qmin           41.413    41.428    41.409
qmax           45.548    45.562    45.538
amean          43.397    43.405    43.390
amin           43.067    43.072    43.057
amax           43.737    43.743    43.731
emean           0.026     0.026     0.026
emin            0.007     0.006     0.006
emax            0.042     0.042     0.042
imean           1.218     1.218     1.217
imin            0.280     0.283     0.276
imax            1.916     1.913     1.916
excite_mean     0.035     0.035     0.034
fracstop        1.000     1.000     1.000
cjmean          3.093     3.093     3.093

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       186.6     187.9     186.1
kozaiamp        180.0     180.0     180.0