Orbit Fit and Astrometric record for 13JX14

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: 13JX14    
# Created Mon Oct 23 01:38:17 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   69 observations of   69
# Arc:  10.61y
# First observation: 2003/12/16
#  Last observation: 2014/07/25
# Chi-squared of fit:   151.24 DOF:  132 RMS:  0.26
# Min/Max residuals:    -0.71    1.44
# Exact a, adot, b, bdot, g, gdot:
  2.942843E-05  1.937949E-01 -1.960015E-06 -3.576094E-02  1.050889E-01 -8.030559E-02
# Covariance matrix:
  4.9411E-13  5.5988E-11  1.3987E-16 -1.5808E-11  1.1541E-11 -2.1757E-10
  5.5988E-11  7.2793E-07  1.7557E-12 -2.0532E-07  1.4772E-07 -2.8255E-06
  1.3987E-16  1.7557E-12  4.8969E-13 -5.4777E-13  3.6335E-13 -6.8169E-12
 -1.5808E-11 -2.0532E-07 -5.4777E-13  5.7915E-08 -4.1667E-08  7.9697E-07
  1.1541E-11  1.4772E-07  3.6335E-13 -4.1667E-08  3.0228E-08 -5.7344E-07
 -2.1757E-10 -2.8255E-06 -6.8169E-12  7.9697E-07 -5.7344E-07  1.0967E-05
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.382398   62.697411   -0.351003    0.006186   -0.916741  2452989.812383
# Heliocentric elements and errors
Epoch:              2452990.5000  =  2003/12/17
Mean Anomaly:          303.76794 +/-     0.132
Argument of Peri:      275.32257 +/-     0.006
Long of Asc Node:      246.55853 +/-     0.003
Inclination:            10.34510 +/-     0.052
Eccentricity:         0.35636374 +/-    0.0000
Semi-Major Axis:     11.41951232 +/-    0.0011
Time of Perihelion: 2455192.1651 +/-       5.5
Perihelion:           7.35001219 +/-    0.0007
Aphelion:            15.48901245 +/-    0.0015
Period (y)               38.5904 +/-      0.01
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X            4.46968506 +/-    0.0017
Ecliptic Y            9.43418106 +/-    0.0015
Ecliptic Z            0.06348093 +/-    0.0003
Ecliptic XDOT        -0.00544752 +/-    0.0000
Ecliptic YDOT         0.00045606 +/-    0.0000
Ecliptic ZDOT        -0.00094546 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   10.43973499 +/-    0.0016
Geocenter to KBO      9.51591633 +/-    0.0020
# Hcoef: 11.92

The following table shows the complete astrometric record for 13JX14. 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 (13JX14) followed by the observatory code and reference code for the source of the astrometry.

2003 12  16.31164  04 02 13.68   +21 04 27.6   22.6g 13JX14    568  C~0uf7      
2003 12  16.33806  04 02 13.22   +21 04 25.8   22.7g 13JX14    568  C~0uf7      
2003 12  16.36435  04 02 12.77   +21 04 24.0   22.7g 13JX14    568  C~0uf7      
2011 03  25.36176  12 15 12.767  -12 44 41.62  20.6r 13JX14    F51  C~1vWy      
2011 03  25.37237  12 15 12.559  -12 44 40.11  20.4r 13JX14    F51  C~1vWy      
2011 03  25.38523  12 15 12.302  -12 44 38.39  20.2i 13JX14    F51  C~1vWy      
2011 03  25.39686  12 15 12.065  -12 44 36.76  20.1i 13JX14    F51  C~1vWy      
2012 03  15.52459  13 44 07.939  -18 43 28.01  21.1r 13JX14    F51  C~1vWy      
2012 03  15.53457  13 44 07.792  -18 43 27.29  20.9r 13JX14    F51  C~1vWy      
2012 03  15.54542  13 44 07.631  -18 43 26.68  20.7i 13JX14    F51  C~1vWy      
2012 03  15.55602  13 44 07.492  -18 43 25.97  20.7i 13JX14    F51  C~1vWz      
2012 04  16.39954  13 34 46.026  -17 46 44.84  20.6w 13JX14    F51  C@0614      
2012 04  16.41277  13 34 45.764  -17 46 42.95  20.7w 13JX14    F51  C@0614      
2012 04  16.42596  13 34 45.502  -17 46 41.22  20.7w 13JX14    F51  C@0614      
2012 04  16.43920  13 34 45.239  -17 46 39.34  20.8w 13JX14    F51  C@0614      
2012 05  10.27410  13 27 37.40   -16 49 11.3   19.6Y 13JX14    W91  C~1k3c      
2012 05  10.27640  13 27 37.37   -16 49 11.1   19.8Y 13JX14    W91  C~1k3c      
2013 04  12.52871  14 54 41.937  -21 10 15.51  21.2w 13JX14    F51  C~0xS0      
2013 04  12.54256  14 54 41.699  -21 10 14.40  21.0w 13JX14    F51  C~0xS0      
2013 05  05.39241  14 47 35.888  -20 31 10.04  20.8w 13JX14    F51  C~0s0A      
2013 05  05.40723  14 47 35.605  -20 31 08.35  21.0w 13JX14    F51  C~0s0A      
2013 05  05.42201  14 47 35.309  -20 31 06.75  20.8w 13JX14    F51  C~0s0A      
2013 05  05.43680  14 47 35.023  -20 31 05.01  20.8w 13JX14    F51  C~0s0A      
2013 05  07.078620 14 47 03.09   -20 27 54.3   21.1V 13JX14    K93  C~0s0A      
2013 05  07.089508 14 47 02.89   -20 27 53.0   21.1V 13JX14    K93  C~0s0A      
2013 05  07.100395 14 47 02.66   -20 27 51.8   21.5V 13JX14    K93  C~0s0A      
2013 05  07.417971 14 46 56.584  -20 27 16.15  20.4R 13JX14    568  C~0s0A      
2013 05  07.419235 14 46 56.558  -20 27 16.00  20.4R 13JX14    568  C~0s0A      
2013 05  07.420501 14 46 56.533  -20 27 15.84  20.4R 13JX14    568  C~0s0A      
2013 05  08.786709 14 46 30.19   -20 24 36.0   21.0V 13JX14    K93  C~0s0A      
2013 05  08.790362 14 46 30.12   -20 24 35.5   21.0V 13JX14    K93  C~0s0A      
2013 05  08.793992 14 46 30.03   -20 24 35.1   20.9V 13JX14    K93  C~0s0A      
2013 05  08.797620 14 46 29.97   -20 24 34.6   21.3V 13JX14    K93  C~0s0A      
2013 05  08.801250 14 46 29.90   -20 24 34.3         13JX14    K93  C~0s0A      
2013 06  05.38418  14 38 36.62   -19 31 03.9   21.1R 13JX14    474  C~0sR4      
2013 06  05.38981  14 38 36.53   -19 31 03.5   21.0R 13JX14    474  C~0sR4      
2013 06  05.41311  14 38 36.21   -19 31 00.9   20.9R 13JX14    474  C~0sR4      
2013 06  05.41874  14 38 36.12   -19 31 00.1   20.9R 13JX14    474  C~0sR4      
2013 06  07.38434  14 38 09.56   -19 27 28.3   20.9V 13JX14    474  C~0sfQ      
2013 06  07.39148  14 38 09.48   -19 27 27.4   20.9V 13JX14    474  C~0sfQ      
2013 06  07.42438  14 38 09.04   -19 27 24.0   21.2V 13JX14    474  C~0sfQ      
2013 06  07.43152  14 38 08.95   -19 27 22.9   21.3V 13JX14    474  C~0sfQ      
2013 08  30.31203  14 43 37.11   -18 43 59.4   21.4R 13JX14    474  C~0twB      
2013 08  30.31923  14 43 37.30   -18 43 59.5   21.2R 13JX14    474  C~0twB      
2013 08  30.32765  14 43 37.50   -18 44 01.0   20.7R 13JX14    474  C~0twB      
2013 08  30.33484  14 43 37.58   -18 44 01.1   20.7R 13JX14    474  C~0twB      
2013 08  31.34003  14 43 58.47   -18 44 52.2   22.5R 13JX14    474  C~0twB      
2013 08  31.35441  14 43 58.75   -18 44 52.3   21.9R 13JX14    474  C~0twB      
2013 08  31.36196  14 43 58.89   -18 44 52.7   21.0R 13JX14    474  C~0twB      
2014 05  10.47043  15 54 38.920  -21 37 29.47  21.1i 13JX14    F51  C~1vWz      
2014 05  10.48255  15 54 38.697  -21 37 28.38  21.0i 13JX14    F51  C~1vWz      
2014 05  10.49464  15 54 38.474  -21 37 27.51  21.0i 13JX14    F51  C~1vWz      
2014 05  10.50676  15 54 38.218  -21 37 26.44  21.1i 13JX14    F51  C~1vWz      
2014 05  20.38700  15 51 29.882  -21 23 48.03  21.2w 13JX14    F51  C@0614      
2014 05  20.39830  15 51 29.663  -21 23 47.05  21.4w 13JX14    F51  C@0614      
2014 05  20.40959  15 51 29.441  -21 23 46.19  21.4w 13JX14    F51  C@0614      
2014 05  20.42088  15 51 29.213  -21 23 45.02  21.1w 13JX14    F51  C~14Qi      
2014 06  19.34211  15 42 40.752  -20 41 58.35  21.6w 13JX14    F51  C~1vWz      
2014 06  19.35271  15 42 40.589  -20 41 57.56  21.7w 13JX14    F51  C~1vWz      
2014 06  19.36330  15 42 40.431  -20 41 56.72  21.8w 13JX14    F51  C~1vWz      
2014 06  19.37389  15 42 40.266  -20 41 56.12  21.7w 13JX14    F51  C~1vWz      
2014 07  01.32262  15 40 06.458  -20 27 36.41  21.6w 13JX14    F51  C~1vWz      
2014 07  01.33389  15 40 06.330  -20 27 35.70  21.7w 13JX14    F51  C~1vWz      
2014 07  01.34516  15 40 06.208  -20 27 34.95  21.6w 13JX14    F51  C~1vWz      
2014 07  01.35645  15 40 06.079  -20 27 34.15  21.5w 13JX14    F51  C~1vWz      
2014 07  25.27221  15 37 35.747  -20 07 25.47  21.8w 13JX14    F51  C~1vWz      
2014 07  25.28280  15 37 35.728  -20 07 25.19  21.7w 13JX14    F51  C~1vWz      
2014 07  25.29337  15 37 35.705  -20 07 24.83  21.8w 13JX14    F51  C~1vWz      
2014 07  25.30395  15 37 35.678  -20 07 24.50  21.8w 13JX14    F51  C~1vWz      

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     1.44
  2   0.0001      0.00     0.16       0.00    -0.66
  3   0.0001      0.00     0.16       0.00    -0.67
  4   7.2719      0.00     0.23       0.00     0.00
  5   7.2719      0.00     0.27       0.00     0.04
  6   7.2719      0.00     0.24       0.00    -0.02
  7   7.2720      0.00     0.15       0.00    -0.01
  8   8.2470      0.00     0.32       0.00     0.08
  9   8.2470      0.00     0.29       0.00     0.13
 10   8.2470      0.00     0.23       0.00     0.00
 11   8.2471      0.00     0.46       0.00    -0.01
 12   8.3343      0.00     0.23       0.00    -0.13
 13   8.3343      0.00     0.24       0.00    -0.05
 14   8.3343      0.00     0.24       0.00    -0.12
 15   8.3344      0.00     0.24       0.00    -0.06
 16   8.3996      0.00     0.26       0.00    -0.06
 17   8.3996      0.00     0.36       0.00    -0.19
 18   9.3230      0.00     0.19       0.00     0.03
 19   9.3230      0.00     0.23       0.00    -0.06
 20   9.3856      0.00     0.11       0.00    -0.18
 21   9.3856      0.00     0.29       0.00    -0.19
 22   9.3857      0.00     0.26       0.00    -0.28
 23   9.3857      0.00     0.39       0.00    -0.24
 24   9.3902      0.00    -0.05       0.00     0.01
 25   9.3902      0.00     0.16       0.00     0.03
 26   9.3902      0.00    -0.09       0.00    -0.05
 27   9.3911      0.00     0.10       0.00    -0.06
 28   9.3911      0.00     0.09       0.00    -0.05
 29   9.3911      0.00     0.09       0.00    -0.04
 30   9.3949      0.00     0.29       0.00    -0.34
 31   9.3949      0.00     0.31       0.00    -0.26
 32   9.3949      0.00     0.03       0.00    -0.28
 33   9.3949      0.00     0.20       0.00    -0.20
 34   9.3949      0.00     0.21       0.00    -0.32
 35   9.4704      0.00     0.07       0.00     0.06
 36   9.4704      0.00    -0.08       0.00    -0.16
 37   9.4705      0.00     0.08       0.00    -0.09
 38   9.4705      0.00    -0.07       0.00     0.10
 39   9.4759      0.00    -0.20       0.00    -0.34
 40   9.4759      0.00     0.05       0.00    -0.20
 41   9.4760      0.00     0.14       0.00    -0.31
 42   9.4760      0.00     0.24       0.00     0.02
 43   9.7057      0.00    -0.31       0.00     0.12
 44   9.7057      0.00     0.34       0.00     0.38
 45   9.7057      0.00     0.76       0.00    -0.71
 46   9.7057      0.00    -0.24       0.00    -0.46
 47   9.7085      0.00    -0.02       0.00    -0.53
 48   9.7085      0.00    -0.29       0.00     0.09
 49   9.7086      0.00    -0.55       0.00     0.07
 50  10.3988      0.00     0.22       0.00    -0.19
 51  10.3988      0.00     0.36       0.00    -0.08
 52  10.3989      0.00     0.50       0.00    -0.19
 53  10.3989      0.00     0.14       0.00    -0.10
 54  10.4259      0.00     0.20       0.00    -0.15
 55  10.4260      0.00     0.25       0.00    -0.12
 56  10.4260      0.00     0.25       0.00    -0.21
 57  10.4260      0.00     0.16       0.00     0.00
 58  10.5080      0.00     0.12       0.00     0.03
 59  10.5080      0.00     0.09       0.00    -0.00
 60  10.5080      0.00     0.12       0.00     0.02
 61  10.5080      0.00     0.05       0.00    -0.20
 62  10.5408      0.00     0.15       0.00    -0.03
 63  10.5408      0.00     0.15       0.00    -0.06
 64  10.5408      0.00     0.23       0.00    -0.06
 65  10.5408      0.00     0.21       0.00    -0.01
 66  10.6063      0.00     0.10       0.00     0.01
 67  10.6064      0.00     0.11       0.00    -0.08
 68  10.6064      0.00     0.06       0.00    -0.08
 69  10.6064      0.00    -0.06       0.00    -0.11

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.

13JX14    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        11.422    11.422    11.422
ecceobj         0.353     0.353     0.353
incobj         10.332    10.332    10.332
qmin            7.337     7.336     7.338
qmax           15.643    15.640    15.647
amean          11.456    11.455    11.457
amin           11.422    11.422    11.422
amax           11.490    11.488    11.492
emean           0.357     0.357     0.357
emin            0.353     0.353     0.353
emax            0.361     0.361     0.362
imean          11.566    11.568    11.565
imin           11.564    11.566    11.562
imax           11.569    11.569    11.569
excite_mean     0.410     0.410     0.410
fracstop        0.000     0.000     0.000
cjmean          3.755     3.755     3.755

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       281.7     281.7     281.8
kozaiamp          6.6       6.6       6.6