Orbit Fit and Astrometric record for 471339

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: 471339    
# Created Fri Oct 20 01:36:53 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting  107 observations of  107
# Arc:   6.16y
# First observation: 2011/07/27
#  Last observation: 2017/09/21
# Chi-squared of fit:   253.14 DOF:  208 RMS:  0.27
# Min/Max residuals:    -1.67    1.38
# Exact a, adot, b, bdot, g, gdot:
  2.919938E-05  1.806823E-01  4.638786E-06  2.554320E-02  9.688780E-02 -2.365864E-02
# Covariance matrix:
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
#      lat0       lon0       xBary       yBary       zBary        JD0
   -1.660388  -38.674998    0.306227   -0.028064   -0.966203  2455769.969166
# Heliocentric elements and errors
Epoch:              2455770.5000  =  2011/07/28
Mean Anomaly:          290.97204 +/-     0.000
Argument of Peri:       76.33875 +/-     0.000
Long of Asc Node:      330.38714 +/-     0.000
Inclination:             8.19097 +/-     0.000
Eccentricity:         0.15896925 +/-    0.0000
Semi-Major Axis:     11.68190063 +/-    0.0000
Time of Perihelion: 2458566.8480 +/-       0.0
Perihelion:           9.82483762 +/-    0.0000
Aphelion:            13.53896363 +/-    0.0000
Period (y)               39.9281 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X            8.62168844 +/-    0.0000
Ecliptic Y           -7.28939560 +/-    0.0000
Ecliptic Z           -0.29896452 +/-    0.0000
Ecliptic XDOT         0.00268234 +/-    0.0000
Ecliptic YDOT         0.00439616 +/-    0.0000
Ecliptic ZDOT         0.00074092 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   11.29421336 +/-    0.0000
Geocenter to KBO     10.32128708 +/-    0.0000
# Hcoef: 11.54

The following table shows the complete astrometric record for 471339. 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 (471339) followed by the observatory code and reference code for the source of the astrometry.

2011 07  27.46840  21 37 02.552  -15 57 54.32  22.2w 471339    F51  C~0XQ2      
2011 07  27.48308  21 37 02.327  -15 57 55.23  22.2w 471339    F51  C~0XQ2      
2011 07  27.49779  21 37 02.107  -15 57 56.10  22.0w 471339    F51  C~0XQ2      
2011 07  29.460895 21 36 32.788  -15 59 55.71  21.6R 471339    568  C~0XQ2      
2011 07  29.462311 21 36 32.766  -15 59 55.77  21.5R 471339    568  C~0XQ2      
2011 07  29.463792 21 36 32.745  -15 59 55.88  21.5R 471339    568  C~0XQ2      
2011 07  29.465177 21 36 32.721  -15 59 55.97  21.5R 471339    568  C~0XQ2      
2011 08  05.486080 21 34 44.421  -16 07 13.35  21.5R 471339    568  C~0XQ2      
2011 08  05.488584 21 34 44.384  -16 07 13.41  21.1R 471339    568  C~0XQ2      
2011 08  07.378674 21 34 14.574  -16 09 12.14  21.2R 471339    568  C~0XQ2      
2011 08  07.382402 21 34 14.512  -16 09 12.39  21.1R 471339    568  C~0XQ2      
2011 08  07.386125 21 34 14.452  -16 09 12.62  21.3R 471339    568  C~0XQ2      
2011 08  19.523699 21 31 00.459  -16 21 44.27  21.7R 471339    568  C~0XTg      
2011 08  19.525115 21 31 00.432  -16 21 44.41  21.3R 471339    568  C~0XTg      
2011 08  30.40961  21 28 10.866  -16 32 07.20  21.9w 471339    F51  C~1vWR      
2011 08  30.42436  21 28 10.663  -16 32 07.91  21.9w 471339    F51  C~1vWR      
2011 08  30.45388  21 28 10.175  -16 32 09.51  21.8w 471339    F51  C~1vWR      
2011 09  04.21496  21 27 00.02   -16 36 14.2         471339    291  C~0Y0E      
2011 09  04.22953  21 26 59.88   -16 36 14.6         471339    291  C~0Y0E      
2011 09  04.24336  21 26 59.60   -16 36 14.8         471339    291  C~0Y0E      
2012 08  17.43952  22 10 41.515  -11 18 45.24  21.9w 471339    F51  C~1vWR      
2012 08  17.45379  22 10 41.299  -11 18 46.31  22.1w 471339    F51  C~1vWR      
2012 08  17.46806  22 10 41.070  -11 18 47.40  21.8w 471339    F51  C~1vWR      
2012 08  17.48234  22 10 40.833  -11 18 48.40  21.7w 471339    F51  C~1vWR      
2013 09  27.30365  22 40 24.985  -06 31 28.76  21.7w 471339    F51  C~1vWR      
2013 09  27.31786  22 40 24.801  -06 31 30.03  21.7w 471339    F51  C~1vWR      
2013 09  27.33209  22 40 24.591  -06 31 30.86  21.9w 471339    F51  C~1vWR      
2013 09  27.34634  22 40 24.391  -06 31 32.11  21.8w 471339    F51  C~1vWR      
2014 06  03.58863  23 34 41.639  +00 03 28.61  22.0w 471339    F51  C~1vWR      
2014 06  03.59283  23 34 41.668  +00 03 28.97  22.0w 471339    F51  C~1vWR      
2014 06  03.59703  23 34 41.709  +00 03 29.47  22.1w 471339    F51  C~1vWR      
2014 06  03.60125  23 34 41.748  +00 03 29.85  21.9w 471339    F51  C~1vWR      
2014 08  05.52271  23 34 23.314  +00 35 49.96  21.9w 471339    F51  C~1vWR      
2014 08  05.53412  23 34 23.216  +00 35 49.56  21.9w 471339    F51  C~1vWR      
2014 08  05.54550  23 34 23.092  +00 35 49.22  21.7w 471339    F51  C~1vWR      
2014 08  06.52495  23 34 12.948  +00 35 13.49  21.8w 471339    F51  C~1vWR      
2014 08  06.53655  23 34 12.822  +00 35 13.25  21.9w 471339    F51  C~1vWR      
2014 08  06.54819  23 34 12.697  +00 35 12.66  21.8w 471339    F51  C~1vWR      
2014 08  06.55997  23 34 12.549  +00 35 11.90  21.8w 471339    F51  C~1vWR      
2014 08  20.47726  23 31 23.512  +00 23 42.01  21.6w 471339    F51  C@0612      
2014 08  20.48943  23 31 23.340  +00 23 41.34  21.8w 471339    F51  C@0612      
2014 08  20.50159  23 31 23.169  +00 23 40.62  21.7w 471339    F51  C@0612      
2014 08  20.51378  23 31 23.000  +00 23 39.83  21.6w 471339    F51  C~1vWR      
2014 08  22.47447  23 30 55.918  +00 21 37.25  21.7w 471339    F51  C~1vWR      
2014 08  22.48673  23 30 55.742  +00 21 36.40  21.6w 471339    F51  C~1vWR      
2014 08  22.49901  23 30 55.565  +00 21 35.73  21.6w 471339    F51  C~1vWR      
2014 08  22.51128  23 30 55.383  +00 21 34.91  21.6w 471339    F51  C~1vWR      
2014 08  24.45061  23 30 27.90   +00 19 28.3   21.0R 471339    291  C~17ll      
2014 08  24.46570  23 30 27.68   +00 19 26.8   21.0R 471339    291  C~17ll      
2014 08  24.48316  23 30 27.42   +00 19 26.0   21.1R 471339    291  C~17ll      
2014 08  31.40863  23 28 44.880  +00 11 13.91  21.6w 471339    F51  C~1vWR      
2014 08  31.42032  23 28 44.697  +00 11 13.03  21.6w 471339    F51  C~1vWR      
2014 08  31.43203  23 28 44.511  +00 11 12.12  21.6w 471339    F51  C~1vWR      
2014 08  31.44382  23 28 44.334  +00 11 11.32  21.5w 471339    F51  C~1vWR      
2014 09  12.47421  23 25 35.502  -00 04 53.63  21.1i 471339    F51  C~1vWR      
2014 09  12.48567  23 25 35.306  -00 04 54.64  21.5i 471339    F51  C~1vWR      
2014 09  12.49717  23 25 35.132  -00 04 55.76  21.0i 471339    F51  C~1vWR      
2014 09  12.50866  23 25 34.924  -00 04 56.45  21.1i 471339    F51  C~1vWR      
2014 09  19.33076  23 23 46.215  -00 14 40.25  21.4w 471339    F51  C~1vWR      
2014 09  19.34220  23 23 46.024  -00 14 41.19  21.2w 471339    F51  C~1vWR      
2014 09  19.35363  23 23 45.839  -00 14 42.22  21.2w 471339    F51  C~1vWR      
2014 09  19.36508  23 23 45.663  -00 14 43.13  21.4w 471339    F51  C~1vWR      
2014 10  25.31113  23 15 43.899  -01 01 18.75  21.5w 471339    F51  C~1vWR      
2014 10  25.32425  23 15 43.775  -01 01 19.41  21.8w 471339    F51  C~1vWR      
2014 10  25.33735  23 15 43.654  -01 01 20.47  22.1w 471339    F51  C~1vWR      
2014 10  25.35049  23 15 43.538  -01 01 21.49  21.8w 471339    F51  C~1vWR      
2014 11  11.25471  23 13 49.331  -01 13 49.46  21.9w 471339    F51  C~1vWR      
2014 11  11.26547  23 13 49.295  -01 13 50.22  21.9w 471339    F51  C~1vWR      
2014 11  11.27624  23 13 49.277  -01 13 50.41  22.0w 471339    F51  C~1vWR      
2014 11  11.28701  23 13 49.204  -01 13 50.37  21.8w 471339    F51  C~1vWR      
2014 12  18.21271  23 15 30.290  -01 06 22.14  22.0w 471339    F51  C~1vWR      
2014 12  18.22479  23 15 30.407  -01 06 21.50  22.1w 471339    F51  C~1vWR      
2014 12  18.23688  23 15 30.502  -01 06 20.98  21.9w 471339    F51  C~1vWR      
2014 12  18.24892  23 15 30.616  -01 06 20.46  22.0w 471339    F51  C~1vWR      
2015 07  29.58242  00 17 25.605  +06 48 55.06  21.2i 471339    F51  C~1vWR      
2015 07  29.59136  00 17 25.560  +06 48 55.25  21.4i 471339    F51  C~1vWR      
2015 07  29.59952  00 17 25.526  +06 48 55.46  21.5i 471339    F51  C~1vWR      
2015 07  29.60770  00 17 25.478  +06 48 55.55  21.3i 471339    F51  C~1vWR      
2015 07  30.52388  00 17 21.153  +06 49 06.30  21.4i 471339    F51  C~1vWR      
2015 07  30.53618  00 17 21.095  +06 49 06.02  21.1i 471339    F51  C~1vWR      
2015 07  30.54853  00 17 21.025  +06 49 06.30  21.3i 471339    F51  C~1vWR      
2015 07  30.56093  00 17 20.961  +06 49 06.28  21.3i 471339    F51  C~1vWR      
2015 07  31.48182  00 17 16.318  +06 49 14.73  21.2i 471339    F51  C~1vWR      
2015 07  31.49395  00 17 16.266  +06 49 14.72  21.4i 471339    F51  C~1vWR      
2015 07  31.50714  00 17 16.186  +06 49 15.02  21.1i 471339    F51  C~1vWR      
2015 07  31.51943  00 17 16.115  +06 49 15.18  21.3i 471339    F51  C~1vWR      
2015 09  11.45837  00 09 29.784  +06 23 46.07  21.5w 471339    F51  C~1XQx      
2015 09  11.48240  00 09 29.402  +06 23 44.25  21.3w 471339    F51  C~1XQx      
2015 09  11.49604  00 09 29.182  +06 23 43.29  21.4w 471339    F51  C~1XQx      
2015 09  18.29126  00 07 41.78   +06 14 49.3   21.0V 471339    G96  C~1XvO      
2015 09  18.29858  00 07 41.63   +06 14 48.1   21.5V 471339    G96  C~1XvO      
2015 09  18.30592  00 07 41.56   +06 14 48.4   22.1V 471339    G96  C~1XvO      
2015 09  18.31324  00 07 41.37   +06 14 47.8   22.3V 471339    G96  C~1XvO      
2015 10  10.35002  00 01 47.656  +05 41 54.09  21.4w 471339    F51  C~1YdS      
2015 10  10.36199  00 01 47.452  +05 41 52.88  21.5w 471339    F51  C~1YdS      
2015 10  10.37399  00 01 47.274  +05 41 51.80  21.4w 471339    F51  C~1YdS      
2016 10  06.46293  00 49 00.123  +12 19 35.17  21.1w 471339    F51  C~1zNP      
2016 10  06.47593  00 48 59.898  +12 19 34.04  21.1w 471339    F51  C~1zNP      
2016 10  06.48891  00 48 59.670  +12 19 32.87  21.1w 471339    F51  C~1zNP      
2016 10  19.42765  00 45 25.281  +11 59 25.37  20.7i 471339    F51  C~20CN      
2016 10  19.43919  00 45 25.095  +11 59 24.62  21.0i 471339    F51  C~20CN      
2016 10  19.45082  00 45 24.893  +11 59 23.32  20.7i 471339    F51  C~20CN      
2016 10  19.46247  00 45 24.719  +11 59 22.06  21.1i 471339    F51  C~20CN      
2017 09  21.57311  01 43 12.488  +18 47 48.25  21.5w 471339    F51  C~2LPT      
2017 09  21.58700  01 43 12.292  +18 47 47.70  21.3w 471339    F51  C~2LPT      
2017 09  21.60088  01 43 12.089  +18 47 47.17  21.4w 471339    F51  C~2LPT      
2017 09  21.61477  01 43 11.884  +18 47 46.72  21.5w 471339    F51  C~2LPT      

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    -0.60       0.00    -1.67
  2   0.0000      0.00     0.23       0.00    -0.04
  3   0.0001      0.00     0.27       0.00    -0.02
  4   0.0055      0.00     0.07       0.00     0.20
  5   0.0055      0.00     0.07       0.00     0.23
  6   0.0055      0.00     0.10       0.00     0.21
  7   0.0055      0.00     0.06       0.00     0.20
  8   0.0247      0.00     0.06       0.00    -0.04
  9   0.0247      0.00     0.11       0.00     0.06
 10   0.0299      0.00    -0.09       0.00     0.06
 11   0.0299      0.00    -0.12       0.00     0.05
 12   0.0299      0.00    -0.12       0.00     0.05
 13   0.0631      0.00    -0.03       0.00     0.20
 14   0.0631      0.00    -0.09       0.00     0.14
 15   0.0929      0.00     0.18       0.00    -0.16
 16   0.0930      0.00     0.55       0.00    -0.08
 17   0.0930      0.00     0.05       0.00    -0.12
 18   0.1061      0.00     0.04       0.00     0.00
 19   0.1061      0.00     1.15       0.00     0.32
 20   0.1062      0.00    -0.00       0.00     0.80
 21   1.0595      0.00     0.08       0.00     0.08
 22   1.0595      0.00     0.29       0.00     0.02
 23   1.0595      0.00     0.30       0.00    -0.06
 24   1.0596      0.00     0.19       0.00    -0.05
 25   2.1707      0.00     0.26       0.00     0.24
 26   2.1707      0.00     0.46       0.00    -0.04
 27   2.1707      0.00     0.28       0.00     0.11
 28   2.1708      0.00     0.25       0.00    -0.15
 29   2.8532      0.00     0.05       0.00    -0.09
 30   2.8532      0.00    -0.13       0.00    -0.13
 31   2.8532      0.00    -0.13       0.00    -0.03
 32   2.8532      0.00    -0.16       0.00    -0.05
 33   3.0255      0.00     0.01       0.00    -0.02
 34   3.0255      0.00     0.35       0.00    -0.01
 35   3.0255      0.00     0.30       0.00     0.05
 36   3.0282      0.00     0.28       0.00    -0.14
 37   3.0282      0.00     0.27       0.00     0.05
 38   3.0283      0.00     0.29       0.00    -0.11
 39   3.0283      0.00    -0.01       0.00    -0.43
 40   3.0664      0.00     0.24       0.00    -0.07
 41   3.0665      0.00     0.22       0.00     0.01
 42   3.0665      0.00     0.20       0.00     0.03
 43   3.0665      0.00     0.23       0.00    -0.02
 44   3.0719      0.00     0.18       0.00     0.02
 45   3.0719      0.00     0.18       0.00    -0.05
 46   3.0720      0.00     0.17       0.00     0.07
 47   3.0720      0.00     0.09       0.00     0.03
 48   3.0773      0.00     0.09       0.00     0.35
 49   3.0773      0.00     0.09       0.00    -0.15
 50   3.0774      0.00     0.01       0.00     0.22
 51   3.0963      0.00     0.03       0.00     0.06
 52   3.0964      0.00     0.02       0.00     0.06
 53   3.0964      0.00    -0.03       0.00     0.02
 54   3.0964      0.00     0.07       0.00     0.11
 55   3.1294      0.00     0.19       0.00     0.05
 56   3.1294      0.00     0.05       0.00     0.01
 57   3.1294      0.00     0.25       0.00    -0.14
 58   3.1295      0.00    -0.06       0.00     0.14
 59   3.1482      0.00     0.15       0.00    -0.20
 60   3.1482      0.00     0.07       0.00    -0.15
 61   3.1482      0.00     0.07       0.00    -0.19
 62   3.1482      0.00     0.21       0.00    -0.11
 63   3.2467      0.00     0.00       0.00     0.31
 64   3.2467      0.00     0.07       0.00     0.43
 65   3.2467      0.00     0.18       0.00     0.14
 66   3.2468      0.00     0.37       0.00    -0.11
 67   3.2930      0.00     0.19       0.00     0.06
 68   3.2931      0.00     0.34       0.00    -0.39
 69   3.2931      0.00     0.76       0.00    -0.28
 70   3.2931      0.00     0.36       0.00     0.07
 71   3.3942      0.00    -0.26       0.00     0.02
 72   3.3943      0.00    -0.14       0.00     0.02
 73   3.3943      0.00    -0.35       0.00    -0.11
 74   3.3943      0.00    -0.27       0.00    -0.24
 75   4.0058      0.00     0.03       0.00    -0.19
 76   4.0058      0.00     0.02       0.00    -0.11
 77   4.0058      0.00     0.11       0.00    -0.01
 78   4.0059      0.00     0.00       0.00    -0.02
 79   4.0084      0.00    -0.03       0.00     0.32
 80   4.0084      0.00     0.06       0.00    -0.09
 81   4.0084      0.00    -0.01       0.00     0.06
 82   4.0085      0.00     0.01       0.00    -0.08
 83   4.0110      0.00    -0.03       0.00    -0.08
 84   4.0110      0.00     0.19       0.00    -0.19
 85   4.0111      0.00     0.09       0.00     0.00
 86   4.0111      0.00     0.04       0.00     0.06
 87   4.1259      0.00    -0.02       0.00     0.12
 88   4.1260      0.00    -0.03       0.00     0.08
 89   4.1260      0.00    -0.09       0.00     0.14
 90   4.1446      0.00     1.07       0.00     0.60
 91   4.1446      0.00     0.63       0.00    -0.00
 92   4.1447      0.00     1.38       0.00     0.90
 93   4.1447      0.00     0.34       0.00     0.91
 94   4.2050      0.00     0.20       0.00    -0.01
 95   4.2050      0.00    -0.04       0.00    -0.11
 96   4.2051      0.00     0.12       0.00    -0.09
 97   5.1964      0.00     0.10       0.00     0.07
 98   5.1965      0.00     0.08       0.00     0.10
 99   5.1965      0.00     0.01       0.00     0.09
100   5.2319      0.00    -0.11       0.00    -0.22
101   5.2320      0.00    -0.05       0.00     0.14
102   5.2320      0.00    -0.22       0.00    -0.04
103   5.2320      0.00     0.04       0.00    -0.18
104   6.1550      0.00     0.22       0.00     0.18
105   6.1550      0.00     0.30       0.00     0.18
106   6.1551      0.00     0.27       0.00     0.21
107   6.1551      0.00     0.21       0.00     0.31

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.

471339    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        11.610    11.610    11.610
ecceobj         0.160     0.160     0.160
incobj          8.199     8.199     8.199
qmin            9.399     9.581     9.662
qmax           18.431    18.761    16.328
amean          12.737    13.185    12.270
amin           11.610    10.771    11.365
amax           13.939    14.459    13.340
emean           0.246     0.243     0.194
emin            0.160     0.054     0.145
emax            0.322     0.307     0.234
imean           8.637     9.459    10.500
imin            7.492     8.472     9.369
imax            9.473    11.562    12.068
excite_mean     0.291     0.298     0.267
fracstop        0.001     0.002     0.003
cjmean          3.615     3.566     3.691

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       231.3     255.5     166.6
kozaiamp        135.6     138.9     172.8