Orbit Fit and Astrometric record for 02GV32

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: 02GV32    
# Created Sun Dec  5 02:09:18 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     79 observations of     79
# Arc:  14.36y
# First observation: 2002/04/08
#  Last observation: 2016/08/18
# Chi-squared of fit:   199.66 DOF:    152 RMS:  0.28
# Min/Max residuals:    -0.82    0.93
# Exact a, adot, b, bdot, g, gdot:
  1.780541E-05  3.774383E-02 -2.026000E-06 -3.007453E-03  3.166731E-02 -2.187166E-03
# Covariance matrix:
  1.4630E-13 -1.5627E-14 -1.5677E-15  1.1324E-15  8.5227E-14 -2.4657E-14
 -1.5627E-14  8.8488E-15  9.7777E-16 -7.0117E-16  2.0423E-15  1.5436E-14
 -1.5677E-15  9.7777E-16  6.3974E-14 -5.6124E-15 -2.1295E-16  1.8689E-15
  1.1324E-15 -7.0117E-16 -5.6124E-15  7.0485E-16  1.6303E-16 -1.3409E-15
  8.5227E-14  2.0423E-15 -2.1295E-16  1.6303E-16  1.1047E-13 -3.2471E-15
 -2.4657E-14  1.5436E-14  1.8689E-15 -1.3409E-15 -3.2471E-15  2.9497E-14
#      lat0       lon0       xBary       yBary       zBary        JD0
    3.002194 -132.827524    0.480804    0.046089   -0.879897  2452372.810473
# Heliocentric elements and errors
Epoch:              2452372.5000  =  2002/04/08
Mean Anomaly:          342.39686 +/-     0.003
Argument of Peri:      173.11137 +/-     0.005
Long of Asc Node:       79.06082 +/-     0.000
Inclination:             5.38873 +/-     0.000
Eccentricity:         0.18855689 +/-    0.0000
Semi-Major Axis:     39.35873772 +/-    0.0022
Time of Perihelion: 2456782.5941 +/-       7.1
Perihelion:          31.93737661 +/-    0.0022
Aphelion:            46.78009882 +/-    0.0029
Period (y)              246.9278 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -22.38773954 +/-    0.0002
Ecliptic Y          -23.44208196 +/-    0.0002
Ecliptic Z            1.65382202 +/-    0.0000
Ecliptic XDOT         0.00250400 +/-    0.0000
Ecliptic YDOT        -0.00209118 +/-    0.0000
Ecliptic ZDOT        -0.00026934 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   32.45735562 +/-    0.0002
Geocenter to KBO     31.57837525 +/-    0.0003
# Hcoef:  7.38

The following table shows the complete astrometric record for 02GV32. 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 (02GV32) followed by the observatory code and reference code for the source of the astrometry.

2002 04  08.30973  15 02 19.68   -14 04 48.4   21.3R 02GV32    807  Cf5154      
2002 04  09.27375  15 02 14.82   -14 04 27.6         02GV32    807  Cf5154      
2002 04  09.33708  15 02 14.50   -14 04 25.9         02GV32    807  Cf5154      
2002 06  07.40052  14 56 39.93   -13 42 19.7         02GV32    568  Cf8973      
2002 06  07.40410  14 56 39.89   -13 42 19.8         02GV32    568  Cf8973      
2002 06  07.41079  14 56 39.86   -13 42 19.8         02GV32    568  Cf8973      
2002 06  07.41865  14 56 39.82   -13 42 19.6         02GV32    568  Cf8973      
2002 06  07.42379  14 56 39.80   -13 42 19.5         02GV32    568  Cf8973      
2002 06  07.42757  14 56 39.77   -13 42 19.5         02GV32    568  Cf8973      
2002 06  07.43121  14 56 39.76   -13 42 19.5         02GV32    568  Cf8973      
2002 06  07.43791  14 56 39.73   -13 42 19.4         02GV32    568  Cf8973      
2002 06  07.44578  14 56 39.68   -13 42 19.3         02GV32    568  Cf8973      
2002 06  18.16894  14 55 50.37   -13 39 40.3   22.0R 02GV32    695  Ck7379      
2002 06  18.21021  14 55 50.21   -13 39 39.7   22.0R 02GV32    695  Ck7379      
2002 06  19.17359  14 55 46.23   -13 39 27.9         02GV32    695  Ck7379      
2002 06  19.23787  14 55 45.96   -13 39 26.8         02GV32    695  Ck7379      
2003 06  03.03922  15 05 26.33   -14 30 02.8         02GV32    309  Ck7379      
2003 06  03.08677  15 05 26.06   -14 30 01.8         02GV32    309  Ck7379      
2004 04  16.45950  15 18 30.81   -15 32 11.0         02GV32    675  Ck7379      
2004 04  16.48162  15 18 30.68   -15 32 10.6         02GV32    675  Ck7379      
2004 05  11.39352  15 16 05.34   -15 23 02.2   22.0R 02GV32    568  Ck9583      
2004 05  11.48510  15 16 04.79   -15 23 00.4         02GV32    568  Ck9583      
2004 06  19.19102  15 12 30.40   -15 11 09.2   22.2R 02GV32    688  Ck9821      
2004 06  19.25970  15 12 30.14   -15 11 08.4         02GV32    688  Ck9821      
2007 05  13.33082  15 42 11.86   -17 32 10.9   22.6R 02GV32    688  Cv0116      
2007 05  13.39172  15 42 11.52   -17 32 09.9         02GV32    688  Cv0116      
2008 05  19.21421  15 50 26.90   -18 10 50.2   22.9R 02GV32    250  S~06AU      
2008 05  19.22115  15 50 26.86   -18 10 50.1         02GV32    250  S~06AU      
2008 05  19.22740  15 50 26.82   -18 10 50.0         02GV32    250  S~06AU      
2008 05  19.23365  15 50 26.78   -18 10 49.8         02GV32    250  S~06AU      
2010 05  11.49886  16 09 26.271  -19 29 52.85  22.1G 02GV32    F51  C~2rXf      
2010 06  07.38841  16 06 37.416  -19 23 12.29  22.0G 02GV32    F51  C~2rXf      
2010 08  08.24515  16 02 33.946  -19 15 57.16  22.6G 02GV32    F51  C~2rXf      
2011 05  30.45194  16 16 39.349  -20 01 24.69  22.1G 02GV32    F51  C~2rXf      
2011 06  06.39389  16 15 55.262  -19 59 50.42  22.9G 02GV32    F51  C~2rXf      
2011 06  06.40835  16 15 55.184  -19 59 50.12  23.1G 02GV32    F51  C~2rXf      
2011 06  06.42277  16 15 55.089  -19 59 50.03  22.0G 02GV32    F51  C~2rXf      
2011 06  06.43721  16 15 55.000  -19 59 49.83  22.1G 02GV32    F51  C~2rXf      
2011 06  08.36816  16 15 42.909  -19 59 24.23  22.9G 02GV32    F51  C~2rXf      
2011 06  08.38535  16 15 42.827  -19 59 23.94  22.2G 02GV32    F51  C~2rXf      
2011 06  08.40046  16 15 42.720  -19 59 23.83  20.8G 02GV32    F51  C~2rXf      
2012 05  10.48927  16 27 55.625  -20 39 49.33  22.5G 02GV32    F51  C~2rXf      
2012 08  16.24975  16 20 26.001  -20 27 21.35  20.9G 02GV32    F51  C~2rXf      
2012 08  17.25921  16 20 25.876  -20 27 24.80  22.7G 02GV32    F51  C~2rXf      
2013 06  07.41676  16 34 20.070  -21 06 56.73  22.2G 02GV32    F51  C~2rXf      
2013 06  07.43067  16 34 19.976  -21 06 56.58  22.1G 02GV32    F51  C~2rXf      
2013 06  07.44724  16 34 19.867  -21 06 56.20  22.0G 02GV32    F51  C~2rXf      
2013 06  07.46133  16 34 19.769  -21 06 56.64  22.5G 02GV32    F51  C~2rXf      
2014 05  21.44071  16 45 35.130  -21 40 37.53  22.2G 02GV32    F51  C~2rXf      
2014 05  21.45382  16 45 35.031  -21 40 37.54  22.5G 02GV32    F51  C~2rXf      
2014 05  21.46689  16 45 34.954  -21 40 37.40  22.6G 02GV32    F51  C~2rXf      
2014 05  21.47998  16 45 34.866  -21 40 37.17  22.2G 02GV32    F51  C~2rXf      
2014 05  28.43609  16 44 50.431  -21 39 30.44  21.5G 02GV32    F51  C~2rXf      
2014 05  28.44670  16 44 50.377  -21 39 30.71  22.3G 02GV32    F51  C~2rXf      
2014 05  28.46794  16 44 50.214  -21 39 30.36  21.8G 02GV32    F51  C~2rXf      
2014 06  03.36123  16 44 12.019  -21 38 32.82  20.8G 02GV32    F51  C~2rXf      
2014 06  08.43073  16 43 39.113  -21 37 43.67  22.5G 02GV32    F51  C~2rXf      
2014 06  18.42259  16 42 35.573  -21 36 09.67  22.7G 02GV32    F51  C~2rXf      
2014 06  26.37129  16 41 47.461  -21 34 59.78  22.9G 02GV32    F51  C~2rXf      
2014 06  28.33942  16 41 36.041  -21 34 43.42  22.0G 02GV32    F51  C~2rXf      
2014 06  28.35000  16 41 35.996  -21 34 43.42  22.1G 02GV32    F51  C~2rXf      
2014 07  25.31701  16 39 28.955  -21 31 57.44  22.4G 02GV32    F51  C~2rXf      
2014 07  25.32772  16 39 28.908  -21 31 57.30  22.1G 02GV32    F51  C~2rXf      
2014 07  25.33834  16 39 28.864  -21 31 57.41  22.6G 02GV32    F51  C~2rXf      
2014 07  25.34899  16 39 28.841  -21 31 57.12  22.1G 02GV32    F51  C~2rXf      
2015 05  20.46639  16 55 11.061  -22 09 17.79  23.2G 02GV32    F51  C~2rXf      
2015 06  11.36732  16 52 50.037  -22 06 18.38  21.5G 02GV32    F51  C~2rXf      
2015 07  09.35388  16 50 02.556  -22 02 49.32  21.1G 02GV32    F51  C~2rXf      
2015 07  12.35676  16 49 47.292  -22 02 31.50  22.1G 02GV32    F51  C~2rXf      
2015 07  12.36853  16 49 47.236  -22 02 31.49  22.0G 02GV32    F51  C~2rXf      
2015 07  12.38033  16 49 47.184  -22 02 31.27  22.3G 02GV32    F51  C~2rXf      
2015 07  12.39214  16 49 47.119  -22 02 31.17  22.1G 02GV32    F51  C~2rXf      
2015 08  06.31545  16 48 13.711  -22 00 58.67  22.9G 02GV32    F51  C~2rXf      
2016 06  08.44446  17 02 36.556  -22 33 30.36  22.3G 02GV32    F51  C~2rXf      
2016 06  08.45419  17 02 36.494  -22 33 30.29  22.3G 02GV32    F51  C~2rXf      
2016 06  08.46392  17 02 36.440  -22 33 30.27  22.5G 02GV32    F51  C~2rXf      
2016 06  08.47367  17 02 36.364  -22 33 30.16  22.2G 02GV32    F51  C~2rXf      
2016 06  23.37293  17 01 00.494  -22 31 48.71  21.0G 02GV32    F51  C~2rXf      
2016 08  18.26364  16 57 12.014  -22 28 25.84  22.8G 02GV32    F51  C~2rXf      

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     0.24       0.00     0.04
     2   0.0026      0.00    -0.01       0.00    -0.82
     3   0.0028      0.00     0.10       0.00    -0.55
     4   0.1645      0.00     0.05       0.00     0.29
     5   0.1645      0.00    -0.28       0.00     0.13
     6   0.1645      0.00    -0.22       0.00     0.02
     7   0.1646      0.00    -0.22       0.00     0.08
     8   0.1646      0.00    -0.13       0.00     0.09
     9   0.1646      0.00    -0.29       0.00     0.03
    10   0.1646      0.00    -0.16       0.00    -0.03
    11   0.1646      0.00    -0.10       0.00    -0.05
    12   0.1646      0.00    -0.25       0.00    -0.08
    13   0.1940      0.00    -0.03       0.00     0.06
    14   0.1941      0.00     0.22       0.00     0.14
    15   0.1968      0.00     0.34       0.00    -0.02
    16   0.1969      0.00     0.34       0.00     0.30
    17   1.1519      0.00     0.33       0.00    -0.19
    18   1.1520      0.00     0.21       0.00    -0.05
    19   2.0237      0.00     0.93       0.00    -0.14
    20   2.0237      0.00     0.79       0.00    -0.21
    21   2.0919      0.00    -0.24       0.00    -0.07
    22   2.0922      0.00     0.02       0.00    -0.28
    23   2.1982      0.00    -0.72       0.00     0.07
    24   2.1984      0.00     0.09       0.00    -0.01
    25   5.0952      0.00    -0.46       0.00     0.15
    26   5.0954      0.00     0.18       0.00    -0.01
    27   6.1134      0.00    -0.75       0.00     0.65
    28   6.1134      0.00    -0.70       0.00     0.62
    29   6.1134      0.00    -0.71       0.00     0.61
    30   6.1134      0.00    -0.72       0.00     0.70
    31   8.0909      0.00     0.02       0.00    -0.18
    32   8.1645      0.00     0.09       0.00    -0.21
    33   8.3338      0.00     0.17       0.00    -0.30
    34   9.1421      0.00     0.44       0.00    -0.81
    35   9.1611      0.00    -0.01       0.00    -0.25
    36   9.1611      0.00     0.21       0.00    -0.14
    37   9.1612      0.00     0.17       0.00    -0.24
    38   9.1612      0.00     0.22       0.00    -0.24
    39   9.1665      0.00     0.04       0.00    -0.04
    40   9.1665      0.00     0.45       0.00     0.02
    41   9.1666      0.00     0.28       0.00    -0.06
    42  10.0895      0.00    -0.03       0.00     0.03
    43  10.3571      0.00    -0.27       0.00     0.20
    44  10.3599      0.00     0.28       0.00     0.32
    45  11.1652      0.00     0.13       0.00    -0.06
    46  11.1653      0.00     0.09       0.00    -0.06
    47  11.1653      0.00     0.08       0.00     0.14
    48  11.1654      0.00    -0.01       0.00    -0.46
    49  12.1181      0.00     0.20       0.00     0.09
    50  12.1181      0.00    -0.03       0.00    -0.05
    51  12.1182      0.00     0.08       0.00    -0.03
    52  12.1182      0.00     0.02       0.00     0.08
    53  12.1372      0.00    -0.05       0.00     0.16
    54  12.1373      0.00     0.19       0.00    -0.21
    55  12.1373      0.00    -0.16       0.00    -0.07
    56  12.1535      0.00     0.23       0.00     0.16
    57  12.1673      0.00     0.07       0.00     0.17
    58  12.1947      0.00     0.17       0.00     0.04
    59  12.2165      0.00    -0.01       0.00     0.01
    60  12.2218      0.00    -0.01       0.00     0.02
    61  12.2219      0.00     0.24       0.00    -0.07
    62  12.2957      0.00     0.20       0.00    -0.05
    63  12.2957      0.00     0.07       0.00     0.05
    64  12.2958      0.00    -0.02       0.00    -0.10
    65  12.2958      0.00     0.20       0.00     0.15
    66  13.1147      0.00    -0.20       0.00    -0.36
    67  13.1747      0.00    -0.29       0.00     0.04
    68  13.2513      0.00     0.28       0.00     0.07
    69  13.2595      0.00    -0.09       0.00    -0.05
    70  13.2596      0.00    -0.04       0.00    -0.11
    71  13.2596      0.00     0.08       0.00     0.04
    72  13.2596      0.00     0.00       0.00     0.07
    73  13.3279      0.00    -0.12       0.00    -0.05
    74  14.1687      0.00    -0.23       0.00     0.04
    75  14.1688      0.00    -0.19       0.00     0.04
    76  14.1688      0.00    -0.03       0.00    -0.00
    77  14.1688      0.00    -0.19       0.00     0.04
    78  14.2096      0.00    -0.77       0.00     0.14
    79  14.3626      0.00     0.32       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.

02GV32    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.234    39.234    39.234
ecceobj         0.187     0.187     0.187
incobj          5.389     5.389     5.389
qmin           31.175    31.176    31.174
qmax           48.315    48.313    48.316
amean          39.456    39.456    39.456
amin           39.053    39.053    39.053
amax           39.917    39.917    39.918
emean           0.193     0.193     0.193
emin            0.176     0.176     0.176
emax            0.210     0.210     0.210
imean           4.194     4.194     4.194
imin            3.736     3.736     3.736
imax            4.906     4.906     4.906
excite_mean     0.206     0.206     0.206
fracstop        1.000     1.000     1.000
cjmean          3.003     3.003     3.003

libcent 0       180.5     180.4     180.3
libamp  0        58.0      57.9      57.7
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       175.6     175.5     175.6
kozaiamp        179.9     179.9     180.0