Orbit Fit and Astrometric record for 609221

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: 609221    
# Created Tue Sep 27 01:09:10 2022
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     90 observations of     90
# Arc:  16.97y
# First observation: 2004/11/09
#  Last observation: 2021/10/28
# Chi-squared of fit:    59.28 DOF:    174 RMS:  0.14
# Min/Max residuals:    -0.53    0.48
# Exact a, adot, b, bdot, g, gdot:
  1.481657E-05  2.570281E-02 -8.762535E-07  1.821855E-05  2.517532E-02 -2.575681E-04
# 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
   -0.500653   39.448116   -0.131209   -0.008495   -0.984090  2453318.881743
# Heliocentric elements and errors
Epoch:              2453318.5000  =  2004/11/09
Mean Anomaly:          353.55952 +/-     0.000
Argument of Peri:      282.51655 +/-     0.000
Long of Asc Node:      124.57176 +/-     0.000
Inclination:             0.49055 +/-     0.000
Eccentricity:         0.07170337 +/-    0.0000
Semi-Major Axis:     43.82211075 +/-    0.0000
Time of Perihelion: 2455214.1321 +/-       0.0
Perihelion:          40.67991781 +/-    0.0000
Aphelion:            46.96430368 +/-    0.0000
Period (y)              290.1003 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           31.34369009 +/-    0.0000
Ecliptic Y           25.96496399 +/-    0.0000
Ecliptic Z           -0.34712321 +/-    0.0000
Ecliptic XDOT        -0.00179881 +/-    0.0000
Ecliptic YDOT         0.00213350 +/-    0.0000
Ecliptic ZDOT         0.00000232 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.70291401 +/-    0.0000
Geocenter to KBO     39.72149620 +/-    0.0000
# Hcoef:  6.14

The following table shows the complete astrometric record for 609221. 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 (609221) followed by the observatory code and reference code for the source of the astrometry.

2004 11  09.38100  02 28 51.31   +14 09 53.5   22.2g 609221    568  C~0VDw      
2004 11  09.40749  02 28 51.17   +14 09 53.1   22.4g 609221    568  C~0VDw      
2004 11  09.43348  02 28 51.04   +14 09 52.3   22.5g 609221    568  C~0VDw      
2004 11  10.29631  02 28 46.86   +14 09 31.9   22.3g 609221    568  C~0VDw      
2005 10  25.50591  02 35 51.70   +14 43 30.8   21.9r 609221    568  C~0VDw      
2005 10  25.53845  02 35 51.54   +14 43 30.1   21.7r 609221    568  C~0VDw      
2005 10  25.57214  02 35 51.37   +14 43 29.3   22.1r 609221    568  C~0VDw      
2005 10  26.54602  02 35 46.61   +14 43 06.9   22.0r 609221    568  C~0VDw      
2006 10  21.97770  02 41 57.45   +15 12 00.2         609221    950  C~0VDw      
2006 10  22.06374  02 41 57.03   +15 11 58.3         609221    950  C~0VDw      
2006 10  22.13981  02 41 56.65   +15 11 56.7         609221    950  C~0VDw      
2006 11  24.24560  02 39 15.02   +14 59 31.7         609221    695  C~0VDw      
2006 11  24.35087  02 39 14.53   +14 59 29.5         609221    695  C~0VDw      
2010 10  09.42104  03 06 19.438  +16 58 23.70  22.2G 609221    F51  C~2r7F      
2010 10  09.42242  03 06 19.442  +16 58 23.68  22.1G 609221    F51  C~2r7F      
2010 10  09.43714  03 06 19.379  +16 58 23.45  22.3G 609221    F51  C~2r7F      
2010 10  09.43851  03 06 19.360  +16 58 23.40  22.1G 609221    F51  C~2r7F      
2010 10  09.45325  03 06 19.317  +16 58 23.06  22.3G 609221    F51  C~2r7F      
2010 10  09.45463  03 06 19.308  +16 58 23.12  22.4G 609221    F51  C~2r7F      
2010 10  09.46935  03 06 19.242  +16 58 22.85  22.0G 609221    F51  C~2r7F      
2010 10  09.47073  03 06 19.247  +16 58 22.80  22.2G 609221    F51  C~2r7F      
2010 10  30.53514  03 04 42.819  +16 51 42.53  21.3G 609221    F51  C~2r7F      
2010 10  30.54705  03 04 42.748  +16 51 42.18  21.5G 609221    F51  C~2r7F      
2011 09  11.56506  03 13 39.141  +17 28 08.09  22.1G 609221    F51  C~2r7F      
2011 10  24.53820  03 11 09.353  +17 17 58.25  22.1G 609221    F51  C~2r7F      
2011 10  24.55348  03 11 09.277  +17 17 58.03  21.8G 609221    F51  C~2r7F      
2011 10  24.56869  03 11 09.209  +17 17 57.71  22.0G 609221    F51  C~2r7F      
2011 10  24.58388  03 11 09.128  +17 17 57.28  21.8G 609221    F51  C~2r7F      
2011 12  25.18791  03 06 22.61   +16 58 56.5   21.9R 609221    688  C~0bd1      
2011 12  25.24494  03 06 22.41   +16 58 56.4         609221    688  C~0bd1      
2012 10  18.39754  03 17 31.743  +17 43 04.95  22.0G 609221    F51  C~2r7F      
2012 10  18.41268  03 17 31.664  +17 43 04.66  21.9G 609221    F51  C~2r7F      
2012 11  07.39473  03 15 55.034  +17 36 49.51  21.9G 609221    F51  C~2r7F      
2013 01  17.32418  03 11 17.104  +17 19 09.66  21.8G 609221    F51  C~2r7F      
2013 08  22.55414  03 25 40.668  +18 14 19.01  22.2G 609221    F51  C~2r7F      
2013 10  25.54285  03 22 58.734  +18 03 50.55  22.6G 609221    F51  C~2r7F      
2014 10  03.61254  03 30 29.428  +18 31 27.33  22.0G 609221    F51  C~2r7F      
2014 10  25.59799  03 28 59.462  +18 25 59.59  22.6G 609221    F51  C~2r7F      
2014 12  10.43903  03 25 10.975  +18 12 16.08  22.1G 609221    F51  C~2r7F      
2015 01  11.33301  03 23 16.677  +18 05 32.52  22.5G 609221    F51  C~2r7F      
2015 01  11.34582  03 23 16.640  +18 05 32.39  22.0G 609221    F51  C~2r7F      
2015 01  11.35856  03 23 16.613  +18 05 32.32  22.4G 609221    F51  C~2r7F      
2015 01  11.37134  03 23 16.574  +18 05 32.11  22.4G 609221    F51  C~2r7F      
2015 01  14.32337  03 23 10.127  +18 05 10.32  22.2G 609221    F51  C~2r7F      
2015 01  14.33618  03 23 10.094  +18 05 10.15  22.2G 609221    F51  C~2r7F      
2015 01  14.34895  03 23 10.065  +18 05 10.10  22.3G 609221    F51  C~2r7F      
2015 01  14.36171  03 23 10.041  +18 05 10.05  22.3G 609221    F51  C~2r7F      
2015 07  26.58694  03 36 33.937  +18 53 31.23  22.7G 609221    F51  C~2r7F      
2015 12  13.26160  03 30 58.642  +18 33 22.07  22.2G 609221    F51  C~2r7F      
2015 12  13.41916  03 30 57.908  +18 33 19.77  21.7G 609221    F51  C~2r7F      
2015 12  13.43330  03 30 57.839  +18 33 19.33  22.0G 609221    F51  C~2r7F      
2015 12  13.44752  03 30 57.768  +18 33 19.13  22.5G 609221    F51  C~2r7F      
2015 12  13.46171  03 30 57.721  +18 33 19.03  22.0G 609221    F51  C~2r7F      
2016 01  08.34154  03 29 20.962  +18 27 49.40  22.9G 609221    F51  C~2r7F      
2016 01  08.35516  03 29 20.927  +18 27 49.13  22.2G 609221    F51  C~2r7F      
2016 01  08.36877  03 29 20.889  +18 27 48.93  22.4G 609221    F51  C~2r7F      
2016 01  08.38245  03 29 20.857  +18 27 49.11  22.4G 609221    F51  C~2r7F      
2016 01  24.34581  03 28 48.673  +18 26 05.33  22.5G 609221    F51  C~2r7F      
2016 10  07.44964  03 42 13.864  +19 11 58.34  21.8G 609221    F51  C~2r7F      
2016 10  07.46266  03 42 13.814  +19 11 58.05  22.1G 609221    F51  C~2r7F      
2016 10  07.47568  03 42 13.777  +19 11 58.08  21.8G 609221    F51  C~2r7F      
2016 10  07.48874  03 42 13.724  +19 11 57.86  21.9G 609221    F51  C~2r7F      
2016 10  25.59009  03 40 59.323  +19 07 46.88  21.6G 609221    F51  C~2r7F      
2016 12  24.37052  03 36 07.563  +18 51 35.73  21.4G 609221    F51  C~2r7F      
2017 08  05.59898  03 48 47.236  +19 33 51.06  22.1G 609221    F51  C~2r7F      
2017 08  05.60308  03 48 47.247  +19 33 51.05  22.0G 609221    F51  C~2r7F      
2017 08  05.60718  03 48 47.270  +19 33 50.98  22.2G 609221    F51  C~2r7F      
2017 08  05.61130  03 48 47.276  +19 33 51.06  22.2G 609221    F51  C~2r7F      
2017 10  17.61089  03 47 37.370  +19 29 31.07  21.9G 609221    F51  C~2r7F      
2017 11  17.49840  03 45 08.810  +19 21 33.75  22.4G 609221    F51  C~2r7F      
2017 11  17.51044  03 45 08.748  +19 21 33.79  22.0G 609221    F51  C~2r7F      
2017 11  17.52251  03 45 08.696  +19 21 33.35  22.3G 609221    F51  C~2r7F      
2017 11  17.53462  03 45 08.634  +19 21 33.26  22.4G 609221    F51  C~2r7F      
2017 12  08.28142  03 43 22.045  +19 15 52.69  21.7G 609221    F51  C~2r7F      
2017 12  08.29609  03 43 21.970  +19 15 52.52  21.8G 609221    F51  C~2r7F      
2017 12  08.31082  03 43 21.905  +19 15 52.28  22.2G 609221    F51  C~2r7F      
2017 12  08.32560  03 43 21.830  +19 15 52.08  22.1G 609221    F51  C~2r7F      
2017 12  09.27293  03 43 17.186  +19 15 37.13  21.9G 609221    F51  C~2r7F      
2017 12  09.28581  03 43 17.152  +19 15 37.13  21.7G 609221    F51  C~2r7F      
2017 12  09.29938  03 43 17.065  +19 15 36.76  21.9G 609221    F51  C~2r7F      
2017 12  09.30014  03 43 17.078  +19 15 36.83  22.0G 609221    F51  C~2r7F      
2017 12  09.31300  03 43 17.007  +19 15 36.59  22.3G 609221    F51  C~2r7F      
2017 12  09.31377  03 43 16.995  +19 15 36.44  21.8G 609221    F51  C~2r7F      
2021 01  16.33409  03 58 53.735  +20 04 44.54  22.3w 609221    F51  C~4Ty3      
2021 01  16.34653  03 58 53.698  +20 04 44.26  22.4w 609221    F51  C~4Ty4      
2021 01  16.35891  03 58 53.659  +20 04 44.23  22.0w 609221    F51  C~4Ty4      
2021 01  16.37136  03 58 53.634  +20 04 44.13  22.3w 609221    F51  C~4Ty4      
2021 10  28.393854 04 11 09.654  +20 38 26.93  22.4w 609221    F52  C~5B8X      
2021 10  28.416662 04 11 09.558  +20 38 26.23  22.0w 609221    F52  C~5B8X      
2021 10  28.428078 04 11 09.517  +20 38 26.38  21.9w 609221    F52  C~5B8X      

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     0.21       0.00     0.26
     2   0.0001      0.00     0.08       0.00     0.48
     3   0.0001      0.00     0.07       0.00     0.30
     4   0.0025      0.00     0.21       0.00     0.20
     5   0.9586      0.00     0.06       0.00     0.02
     6   0.9587      0.00     0.08       0.00     0.08
     7   0.9588      0.00     0.03       0.00     0.06
     8   0.9614      0.00    -0.00       0.00     0.21
     9   1.9482      0.00    -0.38       0.00    -0.31
    10   1.9485      0.00    -0.40       0.00    -0.31
    11   1.9487      0.00    -0.53       0.00    -0.21
    12   2.0393      0.00    -0.05       0.00    -0.13
    13   2.0396      0.00     0.02       0.00    -0.09
    14   5.9139      0.00    -0.10       0.00     0.01
    15   5.9139      0.00     0.05       0.00     0.01
    16   5.9139      0.00     0.03       0.00     0.03
    17   5.9139      0.00    -0.17       0.00    -0.00
    18   5.9140      0.00     0.10       0.00    -0.09
    19   5.9140      0.00     0.05       0.00    -0.01
    20   5.9140      0.00    -0.01       0.00    -0.03
    21   5.9140      0.00     0.15       0.00    -0.06
    22   5.9717      0.00     0.17       0.00    -0.08
    23   5.9717      0.00     0.00       0.00    -0.19
    24   6.8369      0.00     0.18       0.00    -0.37
    25   6.9546      0.00     0.02       0.00    -0.09
    26   6.9546      0.00    -0.01       0.00    -0.02
    27   6.9547      0.00     0.07       0.00    -0.05
    28   6.9547      0.00    -0.05       0.00    -0.18
    29   7.1234      0.00    -0.12       0.00    -0.21
    30   7.1235      0.00    -0.16       0.00     0.45
    31   7.9398      0.00     0.04       0.00     0.02
    32   7.9399      0.00    -0.11       0.00    -0.01
    33   7.9946      0.00    -0.11       0.00     0.08
    34   8.1888      0.00    -0.05       0.00     0.05
    35   8.7835      0.00     0.17       0.00    -0.10
    36   8.9587      0.00     0.04       0.00     0.14
    37   9.8980      0.00     0.25       0.00     0.04
    38   9.9582      0.00    -0.08       0.00     0.11
    39  10.0837      0.00     0.16       0.00    -0.00
    40  10.1710      0.00     0.05       0.00    -0.02
    41  10.1710      0.00    -0.04       0.00    -0.05
    42  10.1711      0.00     0.01       0.00    -0.01
    43  10.1711      0.00    -0.11       0.00    -0.12
    44  10.1792      0.00     0.05       0.00    -0.03
    45  10.1792      0.00    -0.04       0.00    -0.11
    46  10.1792      0.00    -0.07       0.00    -0.06
    47  10.1793      0.00    -0.02       0.00    -0.02
    48  10.7083      0.00    -0.00       0.00    -0.19
    49  11.0907      0.00     0.14       0.00    -0.11
    50  11.0911      0.00     0.12       0.00     0.07
    51  11.0912      0.00     0.07       0.00    -0.15
    52  11.0912      0.00    -0.01       0.00    -0.12
    53  11.0913      0.00     0.27       0.00     0.00
    54  11.1621      0.00     0.01       0.00     0.06
    55  11.1621      0.00     0.07       0.00    -0.09
    56  11.1622      0.00     0.08       0.00    -0.16
    57  11.1622      0.00     0.18       0.00     0.15
    58  11.2059      0.00    -0.15       0.00     0.23
    59  11.9098      0.00    -0.04       0.00    -0.01
    60  11.9099      0.00    -0.09       0.00    -0.15
    61  11.9099      0.00     0.06       0.00     0.04
    62  11.9099      0.00    -0.03       0.00    -0.03
    63  11.9595      0.00     0.06       0.00    -0.21
    64  12.1232      0.00     0.08       0.00    -0.02
    65  12.7371      0.00    -0.10       0.00     0.08
    66  12.7371      0.00    -0.08       0.00     0.04
    67  12.7371      0.00     0.11       0.00    -0.06
    68  12.7371      0.00     0.04       0.00    -0.01
    69  12.9370      0.00    -0.16       0.00     0.20
    70  13.0215      0.00    -0.09       0.00    -0.03
    71  13.0216      0.00    -0.06       0.00     0.22
    72  13.0216      0.00     0.12       0.00    -0.02
    73  13.0216      0.00     0.15       0.00     0.10
    74  13.0784      0.00    -0.09       0.00     0.01
    75  13.0785      0.00    -0.11       0.00     0.07
    76  13.0785      0.00     0.01       0.00     0.05
    77  13.0786      0.00    -0.00       0.00     0.08
    78  13.0812      0.00    -0.16       0.00    -0.09
    79  13.0812      0.00     0.29       0.00     0.11
    80  13.0812      0.00    -0.01       0.00    -0.05
    81  13.0812      0.00     0.24       0.00     0.03
    82  13.0813      0.00     0.13       0.00    -0.01
    83  13.0813      0.00     0.01       0.00    -0.15
    84  16.1860      0.00    -0.14       0.00     0.17
    85  16.1861      0.00    -0.19       0.00    -0.02
    86  16.1861      0.00    -0.26       0.00     0.04
    87  16.1861      0.00    -0.12       0.00     0.03
    88  16.9665      0.00    -0.09       0.00     0.33
    89  16.9666      0.00     0.02       0.00    -0.11
    90  16.9666      0.00     0.19       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.

609221    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.355    44.355    44.355
ecceobj         0.082     0.082     0.082
incobj          0.491     0.491     0.491
qmin           39.514    39.512    39.516
qmax           48.729    48.725    48.732
amean          43.988    43.988    43.989
amin           43.642    43.635    43.639
amax           44.373    44.372    44.371
emean           0.082     0.082     0.082
emin            0.065     0.064     0.065
emax            0.099     0.099     0.099
imean           1.465     1.465     1.465
imin            0.515     0.515     0.515
imax            2.201     2.201     2.201
excite_mean     0.086     0.086     0.086
fracstop        1.000     1.000     1.000
cjmean          3.092     3.092     3.092

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       199.2     199.2     199.2
kozaiamp        180.0     180.0     180.0