Orbit Fit and Astrometric record for 44594

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: 44594     
# Created Thu Nov 27 02:36:47 2014
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting  108 observations of  109
# Arc:  15.12y
# First observation: 1999/07/21
#  Last observation: 2014/09/04
# Chi-squared of fit:   546.54 DOF:  210 RMS:  0.40
# Min/Max residuals:    -2.16    0.99
# Exact a, adot, b, bdot, g, gdot:
  1.629224E-05  4.205124E-02  1.140245E-06  1.431354E-03  3.702425E-02 -2.041411E-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
    1.863403  -57.305740    0.087502    0.032599   -1.009446  2451380.853533
# Heliocentric elements and errors
Epoch:              2451380.5000  =  1999/07/21
Mean Anomaly:          312.33499 +/-     0.000
Argument of Peri:      143.64818 +/-     0.000
Long of Asc Node:      259.59909 +/-     0.000
Inclination:             2.63602 +/-     0.000
Eccentricity:         0.45762095 +/-    0.0000
Semi-Major Axis:     32.43703962 +/-    0.0000
Time of Perihelion: 2460314.7358 +/-       0.0
Perihelion:          17.59317061 +/-    0.0000
Aphelion:            47.28090862 +/-    0.0000
Period (y)              184.7439 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           15.06167936 +/-    0.0000
Ecliptic Y          -23.61358704 +/-    0.0000
Ecliptic Z            0.87831090 +/-    0.0000
Ecliptic XDOT         0.00179663 +/-    0.0000
Ecliptic YDOT         0.00296079 +/-    0.0000
Ecliptic ZDOT         0.00005675 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   28.02214124 +/-    0.0000
Geocenter to KBO     27.00958425 +/-    0.0000
# Hcoef:  6.83

The following table shows the complete astrometric record for 44594. 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 (44594) followed by the observatory code and reference code for the source of the astrometry.

1999 07  21.35279  20 18 07.11   -17 44 34.1   21.6R 44594     568  Ca5927      
1999 07  21.38015  20 18 06.91   -17 44 34.8         44594     568  Ca5927      
1999 07  21.40764  20 18 06.72   -17 44 35.5         44594     568  Ca5927      
1999 08  07.14967  20 16 06.76   -17 51 01.0   21.7R 44594     705  Ca5927      
1999 08  07.16981  20 16 06.61   -17 51 01.7         44594     705  Ca5927      
1999 08  07.18959  20 16 06.48   -17 51 02.1         44594     705  Ca5927      
1999 08  08.17432  20 15 59.53   -17 51 23.3         44594     675  Ca5927      
1999 08  08.18225  20 15 59.45   -17 51 23.4         44594     675  Ca5927      
1999 08  08.20089  20 15 59.33   -17 51 24.1         44594     675  Ca5927      
1999 08  08.20578  20 15 59.30   -17 51 24.1         44594     675  Ca5927      
1999 08  08.21066  20 15 59.25   -17 51 24.3         44594     675  Ca5927      
1999 08  08.21569  20 15 59.22   -17 51 24.3   21.8R 44594     675  Ca5927      
1999 08  08.25700  20 15 58.93   -17 51 25.4   21.6R 44594     675  Ca5927      
1999 08  08.32438  20 15 58.46   -17 51 26.9   21.6R 44594     675  Ca5927      
1999 08  09.17179  20 15 52.61   -17 51 47.1         44594     675  Ca5927      
1999 08  09.18215  20 15 52.56   -17 51 47.4         44594     675  Ca5927      
1999 09  23.35025  20 11 55.26   -18 05 44.9   21.6R 44594     568  C40735      
1999 09  23.38478  20 11 55.15   -18 05 45.4   21.6R 44594     568  C40735      
2000 03  29.61639  20 31 38.36   -17 00 20.2         44594     568  Cb5150      
2000 03  29.62541  20 31 38.42   -17 00 20.4   22.0R 44594     568  Cb5150      
2000 03  29.63593  20 31 38.48   -17 00 20.0   21.6R 44594     568  Cb5150      
2000 05  30.51745  20 32 52.381  -16 50 50.52  21.9R 44594     568  Cb5150      
2000 05  30.57322  20 32 52.188  -16 50 50.94  21.8R 44594     568  Cb5150      
2000 05  31.50973  20 32 49.199  -16 50 57.68  21.8R 44594     568  Cb5150      
2000 05  31.57617  20 32 48.981  -16 50 58.10  21.9R 44594     568  Cb5150      
2000 08  07.05879  20 25 57.47   -17 12 39.1   21.6R 44594     809  Cb9102      
2000 08  07.09518  20 25 57.20   -17 12 40.1         44594     809  Cb9102      
2000 09  04.98463  20 22 53.41   -17 23 47.1   21.2R 44594     309  Cc7493      
2000 09  04.99175  20 22 53.35   -17 23 47.2   20.8I 44594     309  Cc7493      
2000 09  30.02345  20 21 18.75   -17 30 17.2   16.4R 44594     829  Cf4389      
2000 09  30.02986  20 21 18.73   -17 30 17.6   16.4V 44594     829  Cf4389      
2000 09  30.05050  20 21 18.70   -17 30 17.8         44594     829  Cf4389      
2000 09  30.11343  20 21 18.50   -17 30 18.6         44594     829  Cf4389      
2000 09  30.12256  20 21 18.50   -17 30 18.7         44594     829  Cf4389      
2001 06  27.28664  20 40 58.80   -16 13 45.4         44594     304  Cd2244      
2001 06  27.39600  20 40 58.14   -16 13 47.4         44594     304  Cd2244      
2002 06  05.50801  20 53 14.95   -15 21 47.0         44594     568  Cf8736      
2002 06  05.51090  20 53 14.94   -15 21 47.1         44594     568  Cf8736      
2002 06  05.51585  20 53 14.91   -15 21 47.2         44594     568  Cf8736      
2002 06  05.52127  20 53 14.92   -15 21 47.2         44594     568  Cf8736      
2002 06  05.52501  20 53 14.89   -15 21 47.3         44594     568  Cf8736      
2002 06  06.51232  20 53 11.69   -15 21 55.4         44594     568  Cf8736      
2002 06  06.51520  20 53 11.68   -15 21 55.5         44594     568  Cf8736      
2002 06  06.52015  20 53 11.67   -15 21 55.4         44594     568  Cf8736      
2002 06  06.52558  20 53 11.65   -15 21 55.5         44594     568  Cf8736      
2002 06  06.52932  20 53 11.64   -15 21 55.6         44594     568  Cf8736      
2002 06  07.54530  20 53 08.19   -15 22 04.8         44594     568  Cf8736      
2002 06  07.54818  20 53 08.18   -15 22 04.8         44594     568  Cf8736      
2002 06  07.55313  20 53 08.16   -15 22 04.9         44594     568  Cf8736      
2002 06  07.55865  20 53 08.14   -15 22 04.9         44594     568  Cf8736      
2002 06  07.56232  20 53 08.13   -15 22 05.0         44594     568  Cf8736      
2002 06  18.35346  20 52 23.66   -15 24 16.4   21.2R 44594     695  Cf8736      
2002 06  18.37655  20 52 23.54   -15 24 16.7   21.1R 44594     695  Cf8736      
2002 07  12.33259  20 50 02.45   -15 32 24.2   20.8R 44594     695  Cf8736      
2002 07  13.39372  20 49 55.17   -15 32 50.8         44594     695  Cf8736      
2002 07  13.44164  20 49 54.84   -15 32 51.7   20.9R 44594     695  Cf8736      
2002 07  17.34554  20 49 27.57   -15 34 32.7   21.   44594     644  Cj0267      
2003 06  01.31097  21 04 18.98   -14 30 42.5   20.0R 44594     807   i2201      
2003 06  01.40885  21 04 18.75   -14 30 43.0         44594     807   i2201      
2003 08  24.13053  20 55 54.22   -15 02 41.4   19.5R 44594     807  Ci3850      
2003 08  25.02878  20 55 47.92   -15 03 08.4         44594     807  Ci3850      
2003 08  25.13748  20 55 47.16   -15 03 11.6         44594     807  Ci3850      
2003 10  23.09850  20 51 54.93   -15 22 18.9   20.7R 44594     695  Cj4204      
2003 10  24.09034  20 51 55.10   -15 22 22.7         44594     695  Cj4204      
2003 11  22.07617  20 53 08.82   -15 19 31.5   21.1R 44594     695  C~07CF      
2003 11  23.08471  20 53 13.71   -15 19 15.7         44594     695  Cj9547      
2003 11  24.09590  20 53 18.78   -15 18 59.2         44594     695  Cj9547      
2004 05  26.26769  21 15 40.65   -13 35 55.4   21.1R 44594     304  Ck8868      
2004 05  26.29069  21 15 40.63   -13 35 55.3         44594     304  Ck8868      
2005 08  05.97163  21 21 26.39   -12 59 28.6   20.6R 44594     J86  Cz7153      
2005 08  05.97513  21 21 26.38   -12 59 29.0   20.3R 44594     J86  Cz7153      
2005 08  05.98211  21 21 26.32   -12 59 29.1   20.6R 44594     J86  Cz7153      
2005 08  05.98560  21 21 26.29   -12 59 29.3   20.9R 44594     J86  Cz7153      
2005 08  06.07896  21 21 25.58   -12 59 32.6   20.5R 44594     J86  Cz7153      
2005 08  06.08244  21 21 25.54   -12 59 32.7   20.3R 44594     J86  Cz7153      
2005 08  06.08593  21 21 25.51   -12 59 33.0   20.3R 44594     J86  Cz7153      
2006 06  07.27622  21 39 09.28   -11 32 52.8   20.5R 44594     250  S~06Ey      
2006 06  07.28062  21 39 09.27   -11 32 52.8         44594     250  S~06Ey      
2006 06  07.34101  21 39 09.16   -11 32 52.9         44594     250  S~06Ey      
2006 06  07.34541  21 39 09.15   -11 32 52.9         44594     250  S~06Ey      
2006 09  26.82050  21 27 52.19   -12 25 19.2   19. R 44594     461  Cs3288      
2006 10  14.77588  21 26 44.94   -12 32 01.8         44594     461  Cs3476      
2006 10  14.78178  21 26 44.92   -12 32 02.0         44594     461  Cs3476      
2006 10  14.78744  21 26 44.90   -12 32 02.2         44594     461  Cs3476      
2006 10  14.79321  21 26 44.83   -12 32 02.3         44594     461  Cs3476      
2009 10  02.04118  22 07 12.525  -08 48 00.70        44594     809  C~0X45      
2009 10  02.05171  22 07 12.404  -08 48 00.51        44594     809  C~0BRN      
2009 10  02.12832  22 07 11.970  -08 48 03.59        44594     809  C~0BRN      
2009 10  02.14120  22 07 11.914  -08 48 05.24        44594     809  C~0BRN      
2012 08  25.34350  22 57 35.64   -03 41 02.1   19.7V 44594     G96  C~0iLG      
2012 08  25.35473  22 57 35.56   -03 41 02.9   19.9V 44594     G96  C~0iLG      
2012 08  25.36590  22 57 35.46   -03 41 03.7   20.0V 44594     G96  C~0iLG      
2012 08  25.37713  22 57 35.35   -03 41 04.1   19.8V 44594     G96  C~0iLG      
2012 09  17.20361  22 54 28.11   -04 00 21.8   20.0V 44594     G96  C~0iqz      
2012 09  17.21289  22 54 28.04   -04 00 21.9   20.0V 44594     G96  C~0iqz      
2012 09  17.22230  22 54 27.97   -04 00 22.4   20.1V 44594     G96  C~0iqz      
2012 09  17.23160  22 54 27.90   -04 00 22.7   19.9V 44594     G96  C~0iqz      
2013 09  29.19868  23 09 32.84   -02 25 20.7   19.8V 44594     G96  C~0uzy      
2013 09  29.20766  23 09 32.76   -02 25 20.9   19.7V 44594     G96  C~0uzy      
2013 09  29.21669  23 09 32.70   -02 25 21.5   19.7V 44594     G96  C~0uzy      
2013 09  29.22574  23 09 32.63   -02 25 22.1   19.7V 44594     G96  C~0uzy      
2014 08  24.16833  23 31 55.82   -00 02 25.5   19.8R 44594     J04  C~19O6      
2014 08  24.18002  23 31 55.73   -00 02 25.7   20.0R 44594     J04  C~19O6      
2014 08  24.19171  23 31 55.65   -00 02 26.2   19.7R 44594     J04  C~19O6      
2014 08  24.20340  23 31 55.54   -00 02 26.1   19.8R 44594     J04  C~19O6      
2014 09  04.03356  23 30 28.81   -00 11 18.8   20.5  44594     J43  C~18nJ      
2014 09  04.04518  23 30 28.66   -00 11 19.0   20.5  44594     J43  C~18nJ      
2014 09  04.05678  23 30 28.55   -00 11 19.6   20.9  44594     J43  C~18nJ      
2014 09  04.06843  23 30 28.48   -00 11 19.8   20.4  44594     J43  C~18nJ      

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    -0.35       0.00    -2.16
  2   0.0001      0.00     0.46       0.00    -0.08
  3   0.0002      0.00     0.62       0.00    -0.16
  4   0.0460      0.00     0.34       0.00    -0.33
  5   0.0460      0.00     0.24       0.00    -0.56
  6   0.0461      0.00     0.40       0.00    -0.50
  7   0.0488      0.00    -0.48       0.00     0.90
  8   0.0488      0.00    -0.84       0.00     0.99
  9   0.0489      0.00    -0.66       0.00     0.72
 10   0.0489      0.00    -0.59       0.00     0.84
 11   0.0489      0.00    -0.82       0.00     0.75
 12   0.0489      0.00    -0.74       0.00     0.87
 13   0.0490      0.00    -0.69       0.00     0.72
 14   0.0492      0.00    -0.57       0.00     0.76
 15   0.0515      0.00    -0.04       0.00    -0.05
 16   0.0516      0.00     0.30       0.00    -0.11
 17   0.1752      0.00    -0.29       0.00     0.14
 18   0.1753      0.00    -0.42       0.00     0.03
 19   0.6907      0.00    -0.27       0.00     0.11
 20   0.6907      0.00    -0.11       0.00    -0.30
 21   0.6907      0.00    -0.06       0.00    -0.16
 22   0.8601      0.00     0.58       0.00     0.20
 23   0.8603      0.00     0.41       0.00     0.17
 24   0.8629      0.00     0.38       0.00     0.10
 25   0.8630      0.00     0.49       0.00     0.19
 26   1.0478      0.00     0.26       0.00    -0.36
 27   1.0479      0.00     0.17       0.00    -0.45
 28   1.1270      0.00     0.30       0.00    -0.47
 29   1.1270      0.00    -0.03       0.00    -0.43
 30   1.1955      0.00     0.51       0.00     0.02
 31   1.1956      0.00     0.42       0.00    -0.31
 32   1.1956      0.00     0.68       0.00    -0.30
 33   1.1958      0.00    -0.18       0.00    -0.44
 34   1.1958      0.00     0.12       0.00    -0.45
 35   1.9355      0.00     0.63       0.00     0.65
 36   1.9358      0.00     0.58       0.00     0.72
 37   2.8752      0.00     0.14       0.00     0.25
 38   2.8752      0.00     0.13       0.00     0.17
 39   2.8752      0.00    -0.07       0.00     0.11
 40   2.8752      0.00     0.35       0.00     0.16
 41   2.8752      0.00     0.08       0.00     0.09
 42   2.8779      0.00     0.24       0.00     0.21
 43   2.8779      0.00     0.24       0.00     0.13
 44   2.8779      0.00     0.35       0.00     0.28
 45   2.8780      0.00     0.33       0.00     0.22
 46   2.8780      0.00     0.37       0.00     0.16
 47   2.8807      0.00     0.26       0.00     0.01
 48   2.8808      0.00     0.26       0.00     0.04
 49   2.8808      0.00     0.23       0.00    -0.01
 50   2.8808      0.00     0.23       0.00     0.04
 51   2.8808      0.00     0.28       0.00    -0.03
 52   2.9103      0.00    -0.04       0.00    -0.01
 53   2.9104      0.00    -0.15       0.00     0.04
 54   2.9760      0.00     0.14       0.00    -0.25
 55   2.9789      0.00     0.12       0.00    -0.30
 56   2.9790      0.00     0.21       0.00     0.00
 57   2.9897      0.00    -0.02       0.00    -0.57
 58   3.8630      0.00     0.04       0.00    -0.36
 59   3.8633      0.00     0.03       0.00    -0.45
 60   4.0925      0.00     0.15       0.00    -0.14
 61   4.0949      0.00    -0.32       0.00    -0.06
 62   4.0952      0.00    -0.17       0.00     0.03
 63   4.2567      0.00     0.27       0.00    -0.09
 64   4.2594      0.00     0.23       0.00    -0.08
 65   4.3387      0.00     0.01       0.00     0.02
 66   4.3415      0.00     0.00       0.00     0.00
 67   4.3443      0.00     0.24       0.00    -0.01
 68   4.8485      0.00     0.01       0.00    -0.14
 69   4.8486      0.00     0.09       0.00    -0.06
 70   6.0441      0.00    -0.25       0.00     0.08
 71   6.0441      0.00     0.01       0.00    -0.20
 72   6.0442      0.00    -0.08       0.00    -0.05
 73   6.0442      0.00    -0.12       0.00    -0.13
 74   6.0444      0.00     0.10       0.00    -0.20
 75   6.0444      0.00    -0.10       0.00    -0.18
 76   6.0444      0.00    -0.14       0.00    -0.36
 77   6.8800      0.00    -0.05       0.00    -0.92
 78   6.8800      0.00    -0.09       0.00    -0.91
 79   6.8802      0.00    -0.16       0.00    -0.88
 80   6.8802      0.00    -0.19       0.00    -0.87
 81   7.1854      0.00 (  -1.58)      0.00 (  -4.09)
 82   7.2346      0.00     0.20       0.00     0.28
 83   7.2346      0.00     0.13       0.00     0.18
 84   7.2346      0.00     0.05       0.00     0.08
 85   7.2346      0.00    -0.78       0.00     0.07
 86  10.2004      0.00     0.96       0.00     0.22
 87  10.2004      0.00     0.06       0.00     0.79
 88  10.2006      0.00     0.18       0.00     0.44
 89  10.2007      0.00     0.45       0.00    -0.75
 90  13.0979      0.00     0.30       0.00     0.37
 91  13.0979      0.00     0.48       0.00     0.11
 92  13.0979      0.00     0.36       0.00    -0.16
 93  13.0979      0.00     0.10       0.00    -0.02
 94  13.1604      0.00    -0.11       0.00    -0.32
 95  13.1605      0.00    -0.02       0.00     0.06
 96  13.1605      0.00     0.08       0.00     0.04
 97  13.1605      0.00     0.17       0.00     0.22
 98  14.1926      0.00     0.29       0.00     0.02
 99  14.1926      0.00     0.15       0.00     0.28
100  14.1926      0.00     0.32       0.00     0.15
101  14.1927      0.00     0.34       0.00     0.02
102  15.0933      0.00    -0.10       0.00    -0.11
103  15.0933      0.00    -0.08       0.00     0.23
104  15.0933      0.00     0.09       0.00     0.27
105  15.0934      0.00    -0.19       0.00     0.91
106  15.1230      0.00     0.46       0.00    -0.40
107  15.1230      0.00    -0.31       0.00     0.00
108  15.1231      0.00    -0.49       0.00     0.00
109  15.1231      0.00    -0.06       0.00     0.41

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.

44594    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        32.387    32.387    32.387
ecceobj         0.457     0.457     0.457
incobj          2.636     2.636     2.636
qmin           17.277    15.730    17.104
qmax           49.014    47.203    47.992
amean          32.110    30.627    31.946
amin           30.699    28.690    31.139
amax           33.693    32.387    32.772
emean           0.445     0.448     0.455
emin            0.428     0.434     0.442
emax            0.457     0.460     0.466
imean           2.784     3.579     3.173
imin            1.416     2.786     2.735
imax            4.097     4.253     4.097
excite_mean     0.448     0.452     0.458
fracstop        0.011     0.005     0.004
cjmean          2.786     2.785     2.775

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       242.9     220.2     194.4
kozaiamp         95.1      54.0      47.9