Orbit Fit and Astrometric record for 612237

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: 612237    
# Created Wed Dec 25 02:07:39 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     58 observations of     58
# Arc:  17.27y
# First observation: 2001/08/19
#  Last observation: 2018/11/26
# Chi-squared of fit:    90.62 DOF:    110 RMS:  0.22
# Min/Max residuals:    -0.73    0.67
# Exact a, adot, b, bdot, g, gdot:
  1.379935E-05  2.285746E-02 -1.897063E-07 -2.793934E-04  2.360175E-02  2.836172E-03
# 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
   -1.265784   -7.598003    0.450377   -0.020134   -0.907017  2452140.780533
# Heliocentric elements and errors
Epoch:              2452140.5000  =  2001/08/19
Mean Anomaly:           62.02089 +/-     0.000
Argument of Peri:      165.28285 +/-     0.000
Long of Asc Node:      111.80203 +/-     0.000
Inclination:             1.43061 +/-     0.000
Eccentricity:         0.11795608 +/-    0.0000
Semi-Major Axis:     45.25461288 +/-    0.0000
Time of Perihelion: 2432983.4699 +/-       0.0
Perihelion:          39.91655604 +/-    0.0000
Aphelion:            50.59266972 +/-    0.0000
Period (y)              304.4405 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           42.83000245 +/-    0.0000
Ecliptic Y           -6.16111689 +/-    0.0000
Ecliptic Z           -0.93598643 +/-    0.0000
Ecliptic XDOT         0.00066728 +/-    0.0000
Ecliptic YDOT         0.00258618 +/-    0.0000
Ecliptic ZDOT        -0.00003946 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.28092367 +/-    0.0000
Geocenter to KBO     42.36969965 +/-    0.0000
# Hcoef:  6.69

The following table shows the complete astrometric record for 612237. 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 (612237) followed by the observatory code and reference code for the source of the astrometry.

2001 08  19.27979  23 34 05.66   -04 10 39.6   21.9R 612237    807  Cd7925      
2001 08  19.36483  23 34 05.33   -04 10 41.9         612237    807  Cd7925      
2001 08  20.31539  23 34 01.69   -04 11 06.0         612237    807  Cd7925      
2001 08  20.40083  23 34 01.35   -04 11 08.3         612237    807  Cd7925      
2001 08  21.31117  23 33 57.92   -04 11 31.7   22.0R 612237    807  Cd7925      
2001 08  21.37861  23 33 57.65   -04 11 33.2         612237    807  Cd7925      
2001 10  20.26721  23 29 53.79   -04 37 38.2   22.8R 612237    695  Ce0366      
2001 10  20.32452  23 29 53.59   -04 37 39.5         612237    695  Ce0366      
2002 11  07.11379  23 33 52.46   -04 12 45.7   22.8R 612237    695  Ci2660      
2002 11  07.21339  23 33 52.21   -04 12 47.2         612237    695  Ci2660      
2003 07  06.56076  23 45 26.56   -02 58 07.0   23.0R 612237    568  Ci2660      
2003 07  07.54055  23 45 25.77   -02 58 14.4         612237    568  Ci2660      
2003 07  08.54994  23 45 24.90   -02 58 22.1         612237    568  Ci2660      
2003 07  09.53490  23 45 23.95   -02 58 30.2         612237    568  Ci2660      
2005 08  30.69362  23 52 29.81   -02 15 32.4   22.4R 612237    250  S~06AP      
2005 08  30.70034  23 52 29.78   -02 15 32.5         612237    250  S~06AP      
2005 08  30.70705  23 52 29.75   -02 15 32.7         612237    250  S~06AP      
2006 09  19.310577 23 55 52.55   -01 54 35.7         612237    645  C~1PqX      
2006 09  19.311406 23 55 52.54   -01 54 35.7         612237    645  C~1PqX      
2006 09  19.313897 23 55 52.54   -01 54 35.7         612237    645  C~1PqX      
2013 10  05.31487  00 27 10.87   +01 23 50.6   22.5R 612237    695  C~0zdD      
2013 10  05.35984  00 27 10.68   +01 23 49.5         612237    695  C~0zdD      
2013 10  06.33591  00 27 06.57   +01 23 23.5         612237    695  C~0zdD      
2013 10  13.10179  00 26 38.433  +01 20 23.42  23.6z 612237    W84  C~4yCS      
2013 10  13.111563 00 26 38.40   +01 20 23.3   22.9i 612237    W84  C~351I      
2013 10  13.11209  00 26 38.400  +01 20 23.35  23.0i 612237    W84  C~4yCS      
2013 10  28.074525 00 25 40.02   +01 14 17.4   23.0r 612237    W84  C~351I      
2013 10  28.07505  00 25 40.024  +01 14 17.39  22.7r 612237    W84  C~4yCS      
2013 11  08.167558 00 25 02.42   +01 10 27.5   23.2r 612237    W84  C~351I      
2013 11  08.16809  00 25 02.420  +01 10 27.50  23.3r 612237    W84  C~4yCS      
2013 11  22.08391  00 24 25.228  +01 06 48.13  23.9g 612237    W84  C~4yCS      
2013 11  22.094803 00 24 25.20   +01 06 48.0   23.4r 612237    W84  C~351I      
2013 11  22.096204 00 24 25.19   +01 06 47.8   22.9i 612237    W84  C~351I      
2013 11  22.09673  00 24 25.192  +01 06 47.84  22.9i 612237    W84  C~4yCS      
2014 08  18.31206  00 34 44.846  +02 12 37.23  22.4z 612237    W84  C~4yCS      
2014 10  28.18822  00 30 12.002  +01 42 59.89  23.6r 612237    W84  C~4yCS      
2016 09  09.280058 00 42 27.72   +03 00 38.5   23.1r 612237    W84  C~351I      
2016 09  09.28058  00 42 27.723  +03 00 38.46  23.6r 612237    W84  C~4yCS      
2016 09  09.281424 00 42 27.71   +03 00 38.5   22.7i 612237    W84  C~351I      
2016 09  09.28332  00 42 27.701  +03 00 38.35  24.4g 612237    W84  C~4yCS      
2016 11  08.14374  00 38 30.115  +02 35 34.27  23.2i 612237    W84  C~4yCS      
2016 11  08.144583 00 38 30.10   +02 35 34.2   22.5z 612237    W84  C~351I      
2016 11  08.14512  00 38 30.110  +02 35 34.12  22.8z 612237    W84  C~4yCS      
2016 11  18.080810 00 38 00.29   +02 32 37.4   23.1r 612237    W84  C~351I      
2016 11  18.08271  00 38 00.287  +02 32 37.40  24.3g 612237    W84  C~4yCS      
2016 11  26.101748 00 37 40.69   +02 30 45.3   23.2r 612237    W84  C~351I      
2016 11  26.10227  00 37 40.690  +02 30 45.23  22.8r 612237    W84  C~4yCS      
2016 11  26.10867  00 37 40.676  +02 30 45.20  23.5i 612237    W84  C~4yCS      
2016 11  26.11004  00 37 40.662  +02 30 44.86  24.3g 612237    W84  C~4yCS      
2016 11  30.09140  00 37 32.616  +02 30 00.71  22.8z 612237    W84  C~4yCS      
2017 08  28.276620 00 47 37.35   +03 33 17.1   23.1i 612237    W84  C~351I      
2017 08  28.27714  00 47 37.349  +03 33 17.04  23.1i 612237    W84  C~4yCS      
2017 08  28.277998 00 47 37.34   +03 33 17.0   22.9r 612237    W84  C~351I      
2017 08  28.27853  00 47 37.344  +03 33 17.00  23.0r 612237    W84  C~4yCS      
2018 10  18.19480  00 48 44.990  +03 39 41.55  22.6i 612237    W84  C~4yCS      
2018 10  18.19616  00 48 44.991  +03 39 41.59  22.9z 612237    W84  C~4yCS      
2018 11  26.07249  00 46 32.561  +03 26 26.44  23.6r 612237    W84  C~4yCS      
2018 11  26.07387  00 46 32.558  +03 26 26.58  24.1g 612237    W84  C~4yCS      

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     0.29       0.00     0.12
     2   0.0002      0.00     0.24       0.00    -0.02
     3   0.0028      0.00    -0.27       0.00     0.07
     4   0.0031      0.00    -0.40       0.00    -0.05
     5   0.0056      0.00     0.45       0.00    -0.08
     6   0.0057      0.00     0.36       0.00     0.16
     7   0.1697      0.00     0.21       0.00     0.09
     8   0.1699      0.00     0.16       0.00    -0.03
     9   1.2179      0.00     0.17       0.00    -0.03
    10   1.2182      0.00     0.02       0.00    -0.17
    11   1.8789      0.00    -0.63       0.00    -0.08
    12   1.8816      0.00    -0.73       0.00    -0.43
    13   1.8844      0.00    -0.45       0.00    -0.35
    14   1.8871      0.00    -0.54       0.00    -0.37
    15   4.0312      0.00     0.42       0.00     0.39
    16   4.0313      0.00     0.37       0.00     0.47
    17   4.0313      0.00     0.32       0.00     0.45
    18   5.0843      0.00    -0.02       0.00    -0.02
    19   5.0843      0.00    -0.12       0.00     0.00
    20   5.0843      0.00     0.04       0.00     0.07
    21  12.1288      0.00    -0.09       0.00     0.24
    22  12.1289      0.00    -0.05       0.00     0.36
    23  12.1316      0.00    -0.12       0.00     0.67
    24  12.1501      0.00    -0.12       0.00    -0.25
    25  12.1501      0.00    -0.00       0.00    -0.11
    26  12.1501      0.00     0.03       0.00    -0.05
    27  12.1911      0.00     0.05       0.00     0.07
    28  12.1911      0.00     0.13       0.00     0.08
    29  12.2215      0.00     0.03       0.00     0.04
    30  12.2215      0.00     0.06       0.00     0.05
    31  12.2596      0.00     0.10       0.00    -0.03
    32  12.2596      0.00     0.05       0.00    -0.02
    33  12.2596      0.00    -0.05       0.00    -0.20
    34  12.2596      0.00    -0.00       0.00    -0.16
    35  12.9967      0.00     0.41       0.00     0.06
    36  13.1907      0.00     0.13       0.00    -0.10
    37  15.0582      0.00     0.22       0.00     0.00
    38  15.0582      0.00     0.29       0.00    -0.02
    39  15.0582      0.00     0.14       0.00     0.04
    40  15.0582      0.00     0.12       0.00    -0.07
    41  15.2221      0.00    -0.03       0.00     0.01
    42  15.2221      0.00    -0.21       0.00    -0.05
    43  15.2221      0.00    -0.03       0.00    -0.12
    44  15.2493      0.00    -0.04       0.00    -0.08
    45  15.2493      0.00    -0.01       0.00    -0.05
    46  15.2712      0.00    -0.13       0.00     0.00
    47  15.2712      0.00    -0.11       0.00    -0.06
    48  15.2713      0.00    -0.10       0.00    -0.01
    49  15.2713      0.00    -0.27       0.00    -0.34
    50  15.2822      0.00    -0.23       0.00    -0.03
    51  16.0246      0.00     0.16       0.00     0.10
    52  16.0246      0.00     0.17       0.00     0.05
    53  16.0246      0.00     0.08       0.00     0.02
    54  16.0246      0.00     0.16       0.00     0.04
    55  17.1634      0.00    -0.07       0.00    -0.00
    56  17.1634      0.00     0.03       0.00     0.07
    57  17.2698      0.00    -0.21       0.00    -0.14
    58  17.2698      0.00    -0.21       0.00     0.02

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.

612237    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        45.505    45.506    45.505
ecceobj         0.121     0.121     0.121
incobj          1.430     1.430     1.430
qmin           39.252    39.233    39.261
qmax           51.590    51.585    51.604
amean          45.274    45.275    45.274
amin           44.901    44.905    44.900
amax           45.680    45.688    45.699
emean           0.116     0.116     0.116
emin            0.101     0.100     0.100
emax            0.130     0.130     0.130
imean           0.910     0.910     0.910
imin            0.183     0.183     0.183
imax            1.511     1.511     1.512
excite_mean     0.117     0.117     0.117
fracstop        1.000     1.000     1.000
cjmean          3.100     3.100     3.100

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       166.1     166.0     166.2
kozaiamp        179.9     180.0     180.0