Orbit Fit and Astrometric record for 02GP32

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: 02GP32    
# Created Tue Apr 23 01:08:18 2019
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting  110 observations of  110
# Arc:  13.33y
# First observation: 2002/04/06
#  Last observation: 2015/08/06
# Chi-squared of fit:   120.17 DOF:  214 RMS:  0.18
# Min/Max residuals:    -0.63    0.69
# Exact a, adot, b, bdot, g, gdot:
  2.010570E-05  4.218665E-02 -4.055642E-07 -2.254732E-04  3.196493E-02 -1.572101E-03
# Covariance matrix:
  9.0114E-14 -1.6606E-14 -2.1401E-16  1.0668E-16  5.9319E-14 -2.7340E-14
 -1.6606E-14  1.0563E-14  8.0645E-17 -5.7256E-17  1.0218E-15  1.7526E-14
 -2.1401E-16  8.0645E-17  2.9062E-14 -2.8576E-15 -1.4104E-16  1.4873E-16
  1.0668E-16 -5.7256E-17 -2.8576E-15  4.9185E-16  3.5133E-17 -1.0194E-16
  5.9319E-14  1.0218E-15 -1.4104E-16  3.5133E-17  8.7282E-14 -3.1248E-15
 -2.7340E-14  1.7526E-14  1.4873E-16 -1.0194E-16 -3.1248E-15  3.0773E-14
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.575730 -134.589765    0.484205    0.024099   -0.878050  2452370.765603
# Heliocentric elements and errors
Epoch:              2452370.5000  =  2002/04/06
Mean Anomaly:          356.34536 +/-     0.001
Argument of Peri:      110.33232 +/-     0.002
Long of Asc Node:      124.01969 +/-     0.001
Inclination:             1.55891 +/-     0.000
Eccentricity:         0.41945432 +/-    0.0000
Semi-Major Axis:     55.15936525 +/-    0.0042
Time of Perihelion: 2453889.5407 +/-      16.9
Perihelion:          32.02253123 +/-    0.0032
Aphelion:            78.29619927 +/-    0.0063
Period (y)              409.6728 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -22.91436640 +/-    0.0002
Ecliptic Y          -22.55126863 +/-    0.0002
Ecliptic Z            0.86024206 +/-    0.0000
Ecliptic XDOT         0.00265901 +/-    0.0000
Ecliptic YDOT        -0.00244255 +/-    0.0000
Ecliptic ZDOT        -0.00002279 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   32.16162359 +/-    0.0002
Geocenter to KBO     31.28434274 +/-    0.0003
# Hcoef:  7.09

The following table shows the complete astrometric record for 02GP32. 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 (02GP32) followed by the observatory code and reference code for the source of the astrometry.

2002 04  06.26486  14 53 40.71   -14 56 52.6   20.3R 02GP32    807  Cf5154      
2002 04  06.39645  14 53 40.04   -14 56 49.7         02GP32    807  Cf5154      
2002 04  07.37678  14 53 35.23   -14 56 27.2         02GP32    807  Cf5154      
2002 04  11.57522  14 53 13.93   -14 54 48.4   21.2R 02GP32    568  Cf5154      
2002 04  11.60656  14 53 13.76   -14 54 47.7         02GP32    568  Cf5154      
2002 06  06.37535  14 48 03.48   -14 32 06.5         02GP32    568  Cf8972      
2002 06  06.37824  14 48 03.47   -14 32 06.5         02GP32    568  Cf8972      
2002 06  06.38318  14 48 03.44   -14 32 06.2         02GP32    568  Cf8972      
2002 06  06.38862  14 48 03.42   -14 32 06.3         02GP32    568  Cf8973      
2002 06  06.39237  14 48 03.40   -14 32 06.0         02GP32    568  Cf8973      
2002 06  06.39541  14 48 03.38   -14 32 06.1         02GP32    568  Cf8973      
2002 06  06.39836  14 48 03.36   -14 32 06.0         02GP32    568  Cf8973      
2002 06  06.40331  14 48 03.35   -14 32 06.0         02GP32    568  Cf8973      
2002 06  06.40875  14 48 03.31   -14 32 05.8         02GP32    568  Cf8973      
2002 06  06.41249  14 48 03.30   -14 32 05.8         02GP32    568  Cf8973      
2002 06  06.41626  14 48 03.28   -14 32 05.7         02GP32    568  Cf8973      
2002 06  07.37950  14 47 58.72   -14 31 46.8         02GP32    568  Cf8973      
2002 06  07.38239  14 47 58.70   -14 31 46.8         02GP32    568  Cf8973      
2002 06  07.38734  14 47 58.68   -14 31 46.7         02GP32    568  Cf8973      
2002 06  07.39277  14 47 58.65   -14 31 46.6         02GP32    568  Cf8973      
2002 06  07.39652  14 47 58.63   -14 31 46.6         02GP32    568  Cf8973      
2002 06  12.23791  14 47 36.71   -14 30 16.6   21.5R 02GP32    688  Cf7381      
2002 06  12.32301  14 47 36.35   -14 30 15.8         02GP32    688  Cf7381      
2003 03  30.41985  15 03 48.63   -15 41 13.0   21.2R 02GP32    695  Ch8264      
2003 03  30.47728  15 03 48.38   -15 41 11.7         02GP32    695  Ch8264      
2003 05  03.34189  15 00 50.68   -15 28 11.5         02GP32    290  Ch8265      
2003 05  03.36719  15 00 50.52   -15 28 10.7         02GP32    290  Ch8265      
2004 04  22.56180  15 11 32.42   -16 13 12.7         02GP32    568  C~0X5J      
2004 04  24.43262  15 11 21.93   -16 12 29.6   21.7g 02GP32    568  C~0X5J      
2004 04  25.43836  15 11 16.22   -16 12 05.9   21.8g 02GP32    568  C~0X5J      
2004 04  25.46536  15 11 16.07   -16 12 05.3   21.7g 02GP32    568  C~0X5J      
2004 04  25.48800  15 11 15.92   -16 12 04.6   21.8g 02GP32    568  C~0X5J      
2004 05  20.23514  15 08 50.16   -16 02 19.9   21.7R 02GP32    688  Ck8098      
2004 05  20.31117  15 08 49.71   -16 02 18.2         02GP32    688  Ck8098      
2004 05  25.18874  15 08 21.57   -16 00 27.9   22.0R 02GP32    304  Ck8672      
2004 05  25.18972  15 08 21.57   -16 00 27.8         02GP32    304  Ck8672      
2004 05  25.19098  15 08 21.56   -16 00 27.8         02GP32    304  Ck8672      
2004 05  25.19197  15 08 21.55   -16 00 27.8         02GP32    304  Ck8672      
2004 05  25.19295  15 08 21.55   -16 00 27.8         02GP32    304  Ck8672      
2004 05  25.19394  15 08 21.55   -16 00 27.8         02GP32    304  Ck8672      
2004 05  25.19507  15 08 21.54   -16 00 27.7         02GP32    304  Ck8672      
2004 05  25.19605  15 08 21.53   -16 00 27.7         02GP32    304  Ck8672      
2004 05  25.19704  15 08 21.52   -16 00 27.7         02GP32    304  Ck8672      
2004 05  25.19802  15 08 21.52   -16 00 27.6         02GP32    304  Ck8672      
2004 05  25.19910  15 08 21.52   -16 00 27.6         02GP32    304  Ck8672      
2004 05  25.20009  15 08 21.50   -16 00 27.6         02GP32    304  Ck8672      
2004 05  28.02500  15 08 05.56   -15 59 25.7   21.6R 02GP32    304  Ck8672      
2004 05  28.04704  15 08 05.43   -15 59 25.3         02GP32    304  Ck8672      
2004 05  28.06939  15 08 05.31   -15 59 24.8         02GP32    304  Ck8672      
2004 05  28.09240  15 08 05.17   -15 59 24.4         02GP32    304  Ck8672      
2004 05  28.11539  15 08 05.05   -15 59 23.7         02GP32    304  Ck8672      
2004 05  28.16840  15 08 04.75   -15 59 22.8         02GP32    304  Ck8672      
2004 05  29.04168  15 07 59.90   -15 59 03.9         02GP32    304  Ck8672      
2004 05  29.05672  15 07 59.83   -15 59 03.7         02GP32    304  Ck8672      
2004 05  29.08541  15 07 59.67   -15 59 03.2         02GP32    304  Ck8672      
2004 07  08.26985  15 05 11.94   -15 48 58.7   22.0i 02GP32    568  C~0X5J      
2004 07  08.33281  15 05 11.79   -15 48 58.4   22.3i 02GP32    568  C~0X5J      
2004 07  08.39433  15 05 11.63   -15 48 57.9   22.3i 02GP32    568  C~0X5J      
2005 05  08.43009  15 19 51.22   -16 46 41.7   22.0r 02GP32    568  C~0X5J      
2005 05  08.46189  15 19 51.01   -16 46 41.1   21.9r 02GP32    568  C~0X5J      
2005 05  08.49379  15 19 50.83   -16 46 40.3   21.9r 02GP32    568  C~0X5J      
2005 05  10.48664  15 19 38.88   -16 45 54.6   21.9r 02GP32    568  C~0X5J      
2006 04  27.35745  15 30 51.84   -17 28 38.6   21.2R 02GP32    250  S~06AU      
2006 04  27.36185  15 30 51.81   -17 28 38.5         02GP32    250  S~06AU      
2006 04  27.36625  15 30 51.79   -17 28 38.4         02GP32    250  S~06AU      
2006 04  27.37064  15 30 51.76   -17 28 38.3         02GP32    250  S~06AU      
2007 05  13.31443  15 39 18.19   -17 59 14.2   21.8R 02GP32    688  Cv0116      
2007 05  13.37683  15 39 17.81   -17 59 12.8         02GP32    688  Cv0116      
2010 03  01.61233  16 13 18.466  -19 47 23.04  21.9G 02GP32    F51  C~2r79      
2010 05  11.48725  16 09 39.661  -19 35 56.19  20.9G 02GP32    F51  C~2r79      
2010 06  04.42091  16 07 13.672  -19 29 30.46  22.1G 02GP32    F51  C~2r79      
2010 06  04.43298  16 07 13.613  -19 29 30.30  22.3G 02GP32    F51  C~2r79      
2010 06  07.37694  16 06 55.932  -19 28 45.12  22.4G 02GP32    F51  C~2r79      
2011 05  30.43764  16 17 51.745  -19 58 57.46  22.0G 02GP32    F51  C~2r79      
2011 05  30.45194  16 17 51.654  -19 58 57.05  21.6G 02GP32    F51  C~2r79      
2011 06  06.39389  16 17 09.036  -19 57 16.54  22.1G 02GP32    F51  C~2r79      
2011 06  06.40835  16 17 08.933  -19 57 16.31  21.9G 02GP32    F51  C~2r79      
2011 06  06.42277  16 17 08.859  -19 57 15.93  21.9G 02GP32    F51  C~2r79      
2011 06  06.43721  16 17 08.772  -19 57 15.75  22.0G 02GP32    F51  C~2r79      
2012 05  15.40954  16 29 25.478  -20 27 55.50  22.3G 02GP32    F51  C~2r79      
2013 06  07.41742  16 37 11.252  -20 46 29.71  21.7G 02GP32    F51  C~2r79      
2013 07  01.32489  16 34 53.108  -20 42 17.66  23.2G 02GP32    F51  C~2r79      
2013 07  01.33823  16 34 53.032  -20 42 17.59  22.1G 02GP32    F51  C~2r79      
2013 07  01.35158  16 34 52.956  -20 42 17.42  22.2G 02GP32    F51  C~2r79      
2013 07  01.36490  16 34 52.878  -20 42 17.33  22.4G 02GP32    F51  C~2r79      
2014 05  21.44561  16 49 01.894  -21 10 46.42  21.9G 02GP32    F51  C~2r7A      
2014 05  21.45869  16 49 01.808  -21 10 46.31  21.8G 02GP32    F51  C~2r7A      
2014 05  21.47179  16 49 01.748  -21 10 46.07  22.5G 02GP32    F51  C~2r7A      
2014 05  21.48485  16 49 01.657  -21 10 46.01  22.5G 02GP32    F51  C~2r7A      
2014 05  28.43543  16 48 19.298  -21 09 33.21  21.7G 02GP32    F51  C~2r7A      
2014 05  28.44604  16 48 19.232  -21 09 33.06  21.8G 02GP32    F51  C~2r7A      
2014 06  03.39131  16 47 42.334  -21 08 30.81  21.0G 02GP32    F51  C~2r7A      
2014 06  04.39969  16 47 36.071  -21 08 20.08  21.6G 02GP32    F51  C~2r7A      
2014 06  18.39743  16 46 10.171  -21 05 58.47  22.6G 02GP32    F51  C~2r7A      
2014 06  28.33809  16 45 12.793  -21 04 27.35  22.1G 02GP32    F51  C~2r7A      
2014 06  28.34867  16 45 12.731  -21 04 27.36  22.3G 02GP32    F51  C~2r7A      
2014 06  28.35926  16 45 12.669  -21 04 27.24  21.8G 02GP32    F51  C~2r7A      
2014 06  28.36985  16 45 12.622  -21 04 27.43  22.1G 02GP32    F51  C~2r7A      
2014 07  31.27970  16 42 52.231  -21 01 13.56  23.1G 02GP32    F51  C~2r7A      
2015 05  20.47847  16 59 11.379  -21 29 25.65  21.8G 02GP32    F51  C~2r7A      
2015 05  21.43834  16 59 05.740  -21 29 17.61  22.3G 02GP32    F51  C~2r7A      
2015 05  21.45041  16 59 05.669  -21 29 17.49  22.3G 02GP32    F51  C~2r7A      
2015 05  21.46187  16 59 05.580  -21 29 17.22  21.7G 02GP32    F51  C~2r7A      
2015 05  21.47399  16 59 05.515  -21 29 17.10  22.1G 02GP32    F51  C~2r7A      
2015 05  21.47466  16 59 05.523  -21 29 17.01  21.7G 02GP32    F51  C~2r7A      
2015 07  12.35676  16 54 02.037  -21 22 13.74  22.0G 02GP32    F51  C~2r7A      
2015 07  12.36853  16 54 01.973  -21 22 13.87  22.5G 02GP32    F51  C~2r7A      
2015 07  12.38033  16 54 01.933  -21 22 13.49  22.8G 02GP32    F51  C~2r7A      
2015 07  12.39214  16 54 01.872  -21 22 13.70  22.3G 02GP32    F51  C~2r7A      
2015 08  06.32718  16 52 31.715  -21 20 40.69  21.1G 02GP32    F51  C~2r7A      

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     0.17       0.00     0.01
  2   0.0004      0.00    -0.05       0.00    -0.11
  3   0.0030      0.00     0.08       0.00    -0.14
  4   0.0145      0.00     0.32       0.00    -0.13
  5   0.0146      0.00     0.26       0.00    -0.19
  6   0.1673      0.00    -0.08       0.00     0.05
  7   0.1673      0.00    -0.02       0.00    -0.00
  8   0.1673      0.00    -0.11       0.00     0.20
  9   0.1673      0.00    -0.01       0.00    -0.01
 10   0.1674      0.00    -0.04       0.00     0.22
 11   0.1674      0.00    -0.11       0.00     0.06
 12   0.1674      0.00    -0.20       0.00     0.10
 13   0.1674      0.00     0.01       0.00     0.00
 14   0.1674      0.00    -0.19       0.00     0.09
 15   0.1674      0.00    -0.06       0.00     0.02
 16   0.1674      0.00    -0.09       0.00     0.04
 17   0.1701      0.00    -0.06       0.00     0.16
 18   0.1701      0.00    -0.16       0.00     0.10
 19   0.1701      0.00    -0.10       0.00     0.10
 20   0.1701      0.00    -0.16       0.00     0.10
 21   0.1701      0.00    -0.19       0.00     0.03
 22   0.1834      0.00     0.06       0.00     0.69
 23   0.1836      0.00     0.32       0.00    -0.02
 24   0.9806      0.00     0.15       0.00    -0.10
 25   0.9807      0.00     0.10       0.00     0.08
 26   1.0734      0.00     0.06       0.00    -0.17
 27   1.0735      0.00    -0.07       0.00    -0.01
 28   2.0460      0.00    -0.34       0.00     0.47
 29   2.0511      0.00     0.19       0.00     0.11
 30   2.0539      0.00     0.34       0.00     0.29
 31   2.0539      0.00     0.45       0.00     0.26
 32   2.0540      0.00     0.17       0.00     0.43
 33   2.1218      0.00    -0.13       0.00    -0.12
 34   2.1220      0.00    -0.11       0.00    -0.17
 35   2.1353      0.00     0.04       0.00    -0.13
 36   2.1353      0.00     0.13       0.00    -0.05
 37   2.1353      0.00     0.09       0.00    -0.08
 38   2.1353      0.00     0.02       0.00    -0.10
 39   2.1353      0.00     0.11       0.00    -0.13
 40   2.1353      0.00     0.19       0.00    -0.15
 41   2.1353      0.00     0.14       0.00    -0.07
 42   2.1353      0.00     0.08       0.00    -0.10
 43   2.1353      0.00     0.01       0.00    -0.12
 44   2.1353      0.00     0.10       0.00    -0.04
 45   2.1353      0.00     0.19       0.00    -0.06
 46   2.1353      0.00    -0.02       0.00    -0.09
 47   2.1431      0.00    -0.30       0.00     0.04
 48   2.1431      0.00    -0.37       0.00    -0.03
 49   2.1432      0.00    -0.27       0.00    -0.01
 50   2.1433      0.00    -0.41       0.00    -0.10
 51   2.1433      0.00    -0.24       0.00     0.10
 52   2.1435      0.00    -0.22       0.00    -0.14
 53   2.1459      0.00    -0.29       0.00     0.01
 54   2.1459      0.00    -0.07       0.00    -0.11
 55   2.1460      0.00    -0.05       0.00    -0.21
 56   2.2560      0.00     0.33       0.00     0.18
 57   2.2562      0.00     0.42       0.00     0.03
 58   2.2563      0.00     0.28       0.00     0.09
 59   3.0887      0.00     0.49       0.00    -0.10
 60   3.0888      0.00     0.25       0.00    -0.23
 61   3.0889      0.00     0.46       0.00    -0.16
 62   3.0944      0.00     0.10       0.00     0.15
 63   4.0577      0.00     0.00       0.00    -0.31
 64   4.0578      0.00    -0.08       0.00    -0.30
 65   4.0578      0.00    -0.00       0.00    -0.29
 66   4.0578      0.00    -0.08       0.00    -0.28
 67   5.1008      0.00    -0.14       0.00     0.11
 68   5.1009      0.00    -0.09       0.00     0.23
 69   7.9024      0.00    -0.31       0.00    -0.63
 70   8.0964      0.00    -0.05       0.00     0.01
 71   8.1620      0.00    -0.14       0.00    -0.03
 72   8.1620      0.00     0.09       0.00    -0.06
 73   8.1701      0.00    -0.10       0.00    -0.25
 74   9.1476      0.00    -0.15       0.00    -0.13
 75   9.1477      0.00    -0.17       0.00     0.07
 76   9.1667      0.00    -0.02       0.00    -0.20
 77   9.1667      0.00    -0.22       0.00    -0.17
 78   9.1668      0.00     0.01       0.00     0.00
 79   9.1668      0.00     0.05       0.00    -0.03
 80  10.1085      0.00     0.00       0.00    -0.09
 81  11.1708      0.00    -0.07       0.00     0.02
 82  11.2363      0.00     0.19       0.00    -0.03
 83  11.2363      0.00     0.10       0.00    -0.08
 84  11.2364      0.00     0.02       0.00    -0.03
 85  11.2364      0.00    -0.09       0.00    -0.06
 86  12.1237      0.00    -0.09       0.00     0.12
 87  12.1237      0.00    -0.18       0.00     0.09
 88  12.1238      0.00     0.12       0.00     0.20
 89  12.1238      0.00    -0.05       0.00     0.12
 90  12.1428      0.00     0.03       0.00    -0.05
 91  12.1429      0.00     0.04       0.00    -0.02
 92  12.1591      0.00    -0.18       0.00    -0.29
 93  12.1619      0.00     0.01       0.00    -0.10
 94  12.2002      0.00    -0.21       0.00     0.05
 95  12.2274      0.00    -0.01       0.00     0.26
 96  12.2275      0.00    -0.04       0.00     0.16
 97  12.2275      0.00    -0.07       0.00     0.19
 98  12.2275      0.00     0.12       0.00    -0.09
 99  12.3176      0.00     0.01       0.00    -0.14
100  13.1204      0.00    -0.15       0.00     0.39
101  13.1230      0.00     0.00       0.00    -0.11
102  13.1230      0.00     0.03       0.00    -0.10
103  13.1231      0.00    -0.27       0.00     0.07
104  13.1231      0.00    -0.15       0.00     0.08
105  13.1231      0.00     0.03       0.00     0.17
106  13.2651      0.00     0.19       0.00     0.22
107  13.2652      0.00     0.09       0.00     0.02
108  13.2652      0.00     0.36       0.00     0.33
109  13.2652      0.00     0.31       0.00     0.05
110  13.3335      0.00     0.55       0.00    -0.18

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.

02GP32    quality flag:3

Type:         5:2EEE    5:2EEE    5:2EEE

axisobj        54.862    54.862    54.862
ecceobj         0.417     0.417     0.417
incobj          1.559     1.559     1.559
qmin           31.361    31.361    31.361
qmax           80.919    80.906    80.925
amean          55.462    55.462    55.462
amin           54.763    54.761    54.766
amax           56.417    56.413    56.419
emean           0.424     0.424     0.424
emin            0.413     0.413     0.413
emax            0.434     0.434     0.434
imean           0.473     0.473     0.473
imin            0.414     0.413     0.414
imax            0.532     0.532     0.532
excite_mean     0.424     0.424     0.424
fracstop        1.000     1.000     1.000
cjmean          3.001     3.001     3.001

libcent 0       180.1     179.8     180.3
libamp  0        67.7      67.8      67.4
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       124.5     124.5     124.6
kozaiamp        179.9     179.9     180.0