Orbit Fit and Astrometric record for 471237

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: 471237    
# Created Tue Oct 24 01:36:51 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   58 observations of   59
# Arc:   4.23y
# First observation: 2011/01/03
#  Last observation: 2015/03/28
# Chi-squared of fit:   183.44 DOF:  110 RMS:  0.31
# Min/Max residuals:    -0.86    0.96
# Exact a, adot, b, bdot, g, gdot:
  3.467145E-05  2.043219E-01  1.019897E-05  4.994184E-02  9.310237E-02 -3.235913E-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
   -1.098608  116.396914    0.234124   -0.018342   -0.956562  2455564.822956
# Heliocentric elements and errors
Epoch:              2455564.5000  =  2011/01/03
Mean Anomaly:          353.55310 +/-     0.000
Argument of Peri:       23.11152 +/-     0.000
Long of Asc Node:      119.33938 +/-     0.000
Inclination:            13.81484 +/-     0.000
Eccentricity:         0.56505798 +/-    0.0000
Semi-Major Axis:     25.80961935 +/-    0.0000
Time of Perihelion: 2456422.1676 +/-       0.0
Perihelion:          11.22568793 +/-    0.0000
Aphelion:            40.39355077 +/-    0.0000
Period (y)              131.1235 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           -4.98617335 +/-    0.0000
Ecliptic Y           10.57942106 +/-    0.0000
Ecliptic Z           -0.20584463 +/-    0.0000
Ecliptic XDOT        -0.00497238 +/-    0.0000
Ecliptic YDOT        -0.00349211 +/-    0.0000
Ecliptic ZDOT         0.00148662 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   11.69743447 +/-    0.0000
Geocenter to KBO     10.74096049 +/-    0.0000
# Hcoef: 10.96

The following table shows the complete astrometric record for 471237. 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 (471237) followed by the observatory code and reference code for the source of the astrometry.

2011 01  03.32219  07 52 45.94   +19 47 40.0   21.1V 471237    G96  C~0RuP      
2011 01  03.33065  07 52 45.87   +19 47 40.4   21.5V 471237    G96  C~0RuP      
2011 01  03.34077  07 52 45.66   +19 47 42.1   21.1V 471237    G96  C~0RuP      
2011 01  03.35016  07 52 45.51   +19 47 42.5   21.4V 471237    G96  C~0RuP      
2011 01  14.36380  07 50 02.83   +20 00 03.3   21.0V 471237    G96  C~0RuP      
2011 01  14.37120  07 50 02.68   +20 00 03.8   21.8V 471237    G96  C~0RuP      
2011 01  14.37868  07 50 02.58   +20 00 04.2   21.6V 471237    G96  C~0RuP      
2011 01  14.38611  07 50 02.43   +20 00 04.7   21.7V 471237    G96  C~0RuP      
2011 01  16.24646  07 49 34.50   +20 02 12.0   22.0V 471237    G96  C~0RuP      
2011 01  16.25506  07 49 34.35   +20 02 12.6   21.2V 471237    G96  C~0RuP      
2011 01  16.26365  07 49 34.24   +20 02 12.6   21.5V 471237    G96  C~0RuP      
2011 01  16.27223  07 49 34.06   +20 02 13.3   21.3V 471237    G96  C~0RuP      
2011 01  16.30307  07 49 33.63   +20 02 15.3   20.4V 471237    G96  C~0RuP      
2011 01  16.31175  07 49 33.45   +20 02 16.4   22.1V 471237    G96  C~0RuP      
2011 01  16.32938  07 49 33.20   +20 02 17.5   21.2V 471237    G96  C~0RuP      
2011 01  17.32089  07 49 18.27   +20 03 25.9   21.7V 471237    G96  C~0RuP      
2011 01  17.33037  07 49 18.08   +20 03 26.9   21.8V 471237    G96  C~0RuP      
2011 01  17.33999  07 49 17.98   +20 03 26.8   21.2V 471237    G96  C~0RuP      
2011 01  27.22933  07 46 50.41   +20 14 38.9   21.9V 471237    G96  C~0RuP      
2011 01  27.23868  07 46 50.30   +20 14 39.0   21.9V 471237    G96  C~0RuP      
2011 01  27.24808  07 46 50.16   +20 14 40.2   21.5V 471237    G96  C~0RuP      
2011 01  27.25744  07 46 50.01   +20 14 40.9   22.3V 471237    G96  C~0RuP      
2011 02  09.20924  07 43 50.84   +20 28 45.3   21.4V 471237    G96  C~0SWz      
2011 02  09.21619  07 43 50.73   +20 28 44.7   21.3V 471237    G96  C~0SWz      
2011 02  09.22318  07 43 50.59   +20 28 45.6   22.7V 471237    G96  C~0SWz      
2011 02  09.23015  07 43 50.55   +20 28 45.9   21.0V 471237    G96  C~0SWz      
2011 03  10.12124  07 39 24.72   +20 54 22.6   21.6R 471237    688  C~0TsQ      
2011 03  10.18340  07 39 24.39   +20 54 24.9         471237    688  C~0TsQ      
2012 01  02.38055  08 45 43.89   +19 54 17.3   21.1V 471237    691  C~0evL      
2012 01  02.39831  08 45 43.65   +19 54 18.2   21.4V 471237    691  C~0evL      
2012 01  02.41607  08 45 43.44   +19 54 19.7   21.1V 471237    691  C~0evL      
2012 02  13.30661  08 35 50.949  +20 53 21.99  21.5w 471237    F51  C@0612      
2012 02  13.32114  08 35 50.748  +20 53 23.10  21.4w 471237    F51  C@0612      
2012 02  13.33571  08 35 50.532  +20 53 24.26  21.4w 471237    F51  C@0612      
2012 02  13.35030  08 35 50.336  +20 53 25.39  21.5w 471237    F51  C@0612      
2014 02  23.15035  10 23 48.08   +18 42 32.6         471237    I17  C~113k      
2014 02  23.17749  10 23 47.70   +18 42 34.4         471237    I17  C~113k      
2014 05  16.26637  10 14 54.829  +19 25 18.93  21.6i 471237    F51  C~1vWL      
2014 05  16.27927  10 14 54.904  +19 25 18.16  21.2i 471237    F51  C~1vWL      
2014 05  16.29215  10 14 54.960  +19 25 17.31  21.4i 471237    F51  C~1vWL      
2014 05  23.26104  10 15 41.909  +19 18 40.55  22.0w 471237    F51  C~1vWL      
2014 05  23.27387  10 15 42.004  +19 18 39.73  21.9w 471237    F51  C~1vWL      
2014 05  23.28670  10 15 42.110  +19 18 38.88  21.9w 471237    F51  C~1vWL      
2014 05  23.29961  10 15 42.204  +19 18 38.16  22.0w 471237    F51  C~1vWL      
2014 06  15.26955  10 20 04.024  +18 47 40.99  21.7w 471237    F51  C~1vWL      
2014 06  15.27416  10 20 04.081  +18 47 40.20  21.8w 471237    F51  C~1vWL      
2014 06  15.27876  10 20 04.150  +18 47 39.76  21.9w 471237    F51  C~1vWL      
2014 11  30.58832  11 19 26.813  +14 12 37.21  21.7w 471237    F51  C~1vWL      
2014 11  30.60025  11 19 26.934  +14 12 37.27  21.6w 471237    F51  C~1vWL      
2014 11  30.61217  11 19 27.053  +14 12 37.34  21.8w 471237    F51  C~1vWL      
2014 11  30.62410  11 19 27.201  +14 12 37.53  21.5w 471237    F51  C~1vWL      
2015 03  28.21692  11 09 01.95   +16 58 01.1   20.9V 471237    G96  C~1PEz      
2015 03  28.22476  11 09 01.88   +16 58 01.3   21.5V 471237    G96  C~1PEz      
2015 03  28.23257  11 09 01.77   +16 58 02.3   21.9V 471237    G96  C~1PEz      
2015 03  28.24040  11 09 01.72   +16 58 02.7   20.8V 471237    G96  C~1PEz      
2015 03  28.30071  11 09 00.984  +16 58 06.97  21.2i 471237    F51  C~1vWL      
2015 03  28.31333  11 09 00.833  +16 58 07.72  21.2i 471237    F51  C~1vWL      
2015 03  28.32609  11 09 00.677  +16 58 08.59  21.2i 471237    F51  C~1vWL      
2015 03  28.33884  11 09 00.542  +16 58 09.48  21.5i 471237    F51  C~1vWL      

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 (  -0.51)      0.00 (   2.88)
  2   0.0000      0.00     0.91       0.00    -0.56
  3   0.0001      0.00    -0.02       0.00     0.47
  4   0.0001      0.00    -0.21       0.00     0.26
  5   0.0302      0.00     0.33       0.00    -0.00
  6   0.0303      0.00    -0.21       0.00    -0.00
  7   0.0303      0.00     0.01       0.00    -0.11
  8   0.0303      0.00    -0.53       0.00    -0.11
  9   0.0354      0.00     0.46       0.00     0.15
 10   0.0354      0.00     0.19       0.00     0.16
 11   0.0354      0.00     0.52       0.00    -0.44
 12   0.0355      0.00    -0.20       0.00    -0.33
 13   0.0355      0.00     0.47       0.00    -0.44
 14   0.0356      0.00    -0.23       0.00     0.07
 15   0.0356      0.00     0.09       0.00    -0.04
 16   0.0383      0.00     0.39       0.00     0.60
 17   0.0384      0.00    -0.28       0.00     0.96
 18   0.0384      0.00     0.44       0.00     0.20
 19   0.0655      0.00     0.09       0.00    -0.15
 20   0.0655      0.00     0.53       0.00    -0.69
 21   0.0655      0.00     0.54       0.00    -0.12
 22   0.0655      0.00     0.39       0.00    -0.05
 23   0.1010      0.00     0.66       0.00     0.18
 24   0.1010      0.00     0.38       0.00    -0.86
 25   0.1010      0.00    -0.35       0.00    -0.40
 26   0.1010      0.00     0.43       0.00    -0.53
 27   0.1801      0.00     0.03       0.00     0.45
 28   0.1803      0.00    -0.11       0.00     0.12
 29   0.9967      0.00     0.07       0.00     0.36
 30   0.9968      0.00    -0.26       0.00    -0.19
 31   0.9968      0.00    -0.14       0.00    -0.14
 32   1.1115      0.00     0.22       0.00    -0.03
 33   1.1116      0.00     0.30       0.00    -0.06
 34   1.1116      0.00     0.17       0.00    -0.03
 35   1.1116      0.00     0.34       0.00    -0.03
 36   3.1398      0.00     0.48       0.00     0.44
 37   3.1399      0.00     0.56       0.00    -0.58
 38   3.3647      0.00    -0.30       0.00     0.19
 39   3.3647      0.00    -0.20       0.00     0.08
 40   3.3647      0.00    -0.38       0.00    -0.11
 41   3.3838      0.00    -0.09       0.00     0.06
 42   3.3839      0.00    -0.12       0.00     0.06
 43   3.3839      0.00     0.00       0.00     0.03
 44   3.3839      0.00    -0.06       0.00     0.13
 45   3.4468      0.00    -0.02       0.00     0.20
 46   3.4468      0.00    -0.17       0.00    -0.14
 47   3.4468      0.00    -0.13       0.00    -0.13
 48   3.9076      0.00     0.08       0.00    -0.01
 49   3.9077      0.00    -0.03       0.00    -0.02
 50   3.9077      0.00    -0.17       0.00    -0.01
 51   3.9077      0.00     0.13       0.00     0.11
 52   4.2297      0.00    -0.31       0.00     0.05
 53   4.2297      0.00     0.08       0.00    -0.29
 54   4.2297      0.00    -0.14       0.00     0.17
 55   4.2298      0.00     0.54       0.00     0.03
 56   4.2299      0.00    -0.06       0.00     0.01
 57   4.2300      0.00    -0.01       0.00    -0.11
 58   4.2300      0.00    -0.01       0.00    -0.13
 59   4.2300      0.00     0.30       0.00    -0.12

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.

471237    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        25.983    25.983    25.983
ecceobj         0.565     0.565     0.565
incobj         13.805    13.805    13.805
qmin           10.814    10.921    10.959
qmax           42.689    42.113    41.645
amean          25.771    26.055    26.064
amin           24.813    25.699    25.719
amax           26.876    26.533    26.464
emean           0.570     0.572     0.571
emin            0.559     0.565     0.561
emax            0.588     0.587     0.577
imean          11.966    12.406    12.564
imin           11.194    12.263    12.263
imax           12.459    12.639    12.836
excite_mean     0.607     0.611     0.611
fracstop        0.003     0.002     0.002
cjmean          2.655     2.646     2.647

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        46.1      32.9      30.0
kozaiamp         29.0       7.8       6.6