Orbit Fit and Astrometric record for 12DQ106

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: 12DQ106   
# Created Fri Dec  3 02:11:23 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting    106 observations of    106
# Arc:   7.02y
# First observation: 2011/03/10
#  Last observation: 2018/03/18
# Chi-squared of fit:    98.16 DOF:    206 RMS:  0.17
# Min/Max residuals:    -0.44    0.59
# Exact a, adot, b, bdot, g, gdot:
  1.737715E-05  3.148393E-02  3.678861E-07 -6.722970E-05  2.808348E-02  1.054279E-03
# Covariance matrix:
  2.2763E-13 -1.1492E-13 -2.0804E-16  1.8371E-16 -3.9775E-14 -4.1702E-13
 -1.1492E-13  7.3611E-14  1.0285E-16 -1.2852E-16  3.5999E-14  3.0157E-13
 -2.0804E-16  1.0285E-16  9.4614E-14 -2.0108E-14 -2.8560E-16  4.5579E-16
  1.8371E-16 -1.2852E-16 -2.0108E-14  5.0276E-15 -3.6359E-17 -5.6544E-16
 -3.9775E-14  3.5999E-14 -2.8560E-16 -3.6359E-17  7.0426E-14  1.5775E-13
 -4.1702E-13  3.0157E-13  4.5579E-16 -5.6544E-16  1.5775E-13  1.3260E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -1.148383  177.338945    0.137744   -0.019818   -0.987431  2455630.962396
# Heliocentric elements and errors
Epoch:              2455630.5000  =  2011/03/10
Mean Anomaly:            8.76647 +/-     0.010
Argument of Peri:      251.16324 +/-     0.016
Long of Asc Node:      273.59831 +/-     0.007
Inclination:             1.12465 +/-     0.000
Eccentricity:         0.16456137 +/-    0.0000
Semi-Major Axis:     43.65584939 +/-    0.0018
Time of Perihelion: 2453064.9264 +/-       2.9
Perihelion:          36.47178304 +/-    0.0020
Aphelion:            50.83991574 +/-    0.0025
Period (y)              288.4509 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -36.53867950 +/-    0.0003
Ecliptic Y            1.83540056 +/-    0.0000
Ecliptic Z           -0.71362575 +/-    0.0000
Ecliptic XDOT        -0.00024644 +/-    0.0000
Ecliptic YDOT        -0.00305526 +/-    0.0000
Ecliptic ZDOT        -0.00000859 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   36.59168843 +/-    0.0003
Geocenter to KBO     35.60813683 +/-    0.0003
# Hcoef:  7.24

The following table shows the complete astrometric record for 12DQ106. 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 (12DQ106) followed by the observatory code and reference code for the source of the astrometry.

2011 03  10.46163  11 48 24.454  +00 00 15.71  21.9G 12DQ106   F51  C~345o      
2011 04  01.34444  11 46 35.249  +00 12 06.22  23.7G 12DQ106   F51  C~345p      
2011 04  01.35948  11 46 35.163  +00 12 06.45  22.8G 12DQ106   F51  C~345p      
2011 12  04.60163  11 57 47.814  -00 58 20.12  21.1G 12DQ106   F51  C~345p      
2012 02  16.57775  11 56 42.129  -00 53 33.17  22.3G 12DQ106   F51  C~345p      
2012 02  16.58838  11 56 42.086  -00 53 32.70  23.0G 12DQ106   F51  C~345p      
2012 03  20.37009  11 54 06.963  -00 37 05.49  23.1G 12DQ106   F51  C~345p      
2012 03  20.38471  11 54 06.902  -00 37 04.76  23.4G 12DQ106   F51  C~345p      
2012 03  20.39934  11 54 06.829  -00 37 04.23  22.8G 12DQ106   F51  C~345p      
2012 03  20.41396  11 54 06.744  -00 37 04.05  22.8G 12DQ106   F51  C~345p      
2013 01  10.60664  12 04 48.691  -01 45 21.69  22.1G 12DQ106   F51  C~345p      
2013 04  05.33730  11 59 24.920  -01 11 38.01  22.9G 12DQ106   F51  C~345p      
2013 04  05.35164  11 59 24.825  -01 11 37.36  22.3G 12DQ106   F51  C~345p      
2013 04  05.36601  11 59 24.771  -01 11 37.04  23.0G 12DQ106   F51  C~345p      
2013 04  05.38044  11 59 24.700  -01 11 36.68  22.6G 12DQ106   F51  C~345p      
2013 04  05.43550  11 59 24.435  -01 11 35.05  23.2G 12DQ106   F51  C~345p      
2013 04  05.44655  11 59 24.358  -01 11 34.32  23.0G 12DQ106   F51  C~345p      
2013 04  17.29719  11 58 30.138  -01 05 33.15  22.3G 12DQ106   F51  C~345p      
2013 04  17.30905  11 58 30.140  -01 05 33.28  22.0G 12DQ106   F51  C~345p      
2013 12  14.63727  12 10 57.721  -02 24 23.54  22.8G 12DQ106   F51  C~345p      
2013 12  14.64127  12 10 57.721  -02 24 23.43  22.7G 12DQ106   F51  C~345p      
2013 12  14.64527  12 10 57.745  -02 24 23.81  23.4G 12DQ106   F51  C~345p      
2013 12  14.64928  12 10 57.748  -02 24 23.81  23.1G 12DQ106   F51  C~345p      
2014 02  26.50851  12 09 05.607  -02 14 27.36  22.7G 12DQ106   F51  C~345p      
2014 02  26.52088  12 09 05.525  -02 14 27.18  23.3G 12DQ106   F51  C~345p      
2014 02  26.53324  12 09 05.488  -02 14 27.11  22.9G 12DQ106   F51  C~345p      
2014 02  26.54562  12 09 05.431  -02 14 26.36  22.5G 12DQ106   F51  C~345p      
2014 03  06.45336  12 08 28.940  -02 10 35.96  22.3G 12DQ106   F51  C~345p      
2014 03  06.46528  12 08 28.921  -02 10 36.02  22.9G 12DQ106   F51  C~345p      
2014 04  04.39651  12 06 05.829  -01 55 10.47  22.6G 12DQ106   F51  C~345p      
2014 04  04.42189  12 06 05.679  -01 55 09.59  22.3G 12DQ106   F51  C~345p      
2014 04  04.43324  12 06 05.625  -01 55 08.80  22.7G 12DQ106   F51  C~345p      
2014 04  23.35720  12 04 39.871  -01 45 37.40  22.6G 12DQ106   F51  C~345p      
2014 04  23.36968  12 04 39.863  -01 45 37.19  23.2G 12DQ106   F51  C~345p      
2014 04  29.30046  12 04 16.527  -01 42 58.82  22.5G 12DQ106   F51  C~345p      
2014 04  29.31242  12 04 16.510  -01 42 58.39  22.7G 12DQ106   F51  C~345p      
2014 04  29.32438  12 04 16.483  -01 42 58.05  23.3G 12DQ106   F51  C~345p      
2014 04  29.33637  12 04 16.425  -01 42 58.09  22.9G 12DQ106   F51  C~345p      
2014 05  24.26873  12 03 06.457  -01 34 44.25  23.5G 12DQ106   F51  C~345p      
2014 05  24.28202  12 03 06.453  -01 34 44.09  23.1G 12DQ106   F51  C~345p      
2014 05  24.29528  12 03 06.429  -01 34 43.84  22.7G 12DQ106   F51  C~345p      
2014 05  24.30856  12 03 06.379  -01 34 43.84  22.6G 12DQ106   F51  C~345p      
2014 05  25.32905  12 03 04.630  -01 34 30.48  23.0G 12DQ106   F51  C~345p      
2014 05  25.34047  12 03 04.622  -01 34 30.00  22.9G 12DQ106   F51  C~345p      
2014 05  25.35191  12 03 04.611  -01 34 29.77  22.9G 12DQ106   F51  C~345p      
2014 05  25.36338  12 03 04.568  -01 34 29.78  22.8G 12DQ106   F51  C~345p      
2015 01  25.53017  12 17 25.190  -03 07 37.95  22.9G 12DQ106   F51  C~345p      
2015 01  25.54551  12 17 25.161  -03 07 37.61  22.9G 12DQ106   F51  C~345p      
2015 01  25.56081  12 17 25.119  -03 07 37.23  23.0G 12DQ106   F51  C~345p      
2015 01  25.57613  12 17 25.091  -03 07 37.28  22.7G 12DQ106   F51  C~345p      
2015 03  30.41579  12 13 06.582  -02 40 44.26  22.8G 12DQ106   F51  C~345p      
2015 04  13.38114  12 11 58.950  -02 33 19.70  22.3G 12DQ106   F51  C~345p      
2015 04  13.39200  12 11 58.886  -02 33 19.08  22.2G 12DQ106   F51  C~345p      
2015 04  13.40283  12 11 58.833  -02 33 18.64  22.8G 12DQ106   F51  C~345p      
2015 04  15.38060  12 11 49.687  -02 32 17.79  22.6G 12DQ106   F51  C~345p      
2015 04  15.40954  12 11 49.567  -02 32 16.95  22.0G 12DQ106   F51  C~345p      
2015 04  15.42017  12 11 49.516  -02 32 16.73  21.9G 12DQ106   F51  C~345p      
2016 01  08.62196  12 24 10.617  -03 50 36.86  22.8G 12DQ106   F51  C~345p      
2016 01  08.63039  12 24 10.606  -03 50 36.76  22.5G 12DQ106   F51  C~345p      
2016 01  08.63882  12 24 10.600  -03 50 36.86  22.8G 12DQ106   F51  C~345p      
2016 01  08.64728  12 24 10.613  -03 50 36.63  22.6G 12DQ106   F51  C~345p      
2016 01  18.60788  12 24 04.599  -03 50 18.28  22.1G 12DQ106   F51  C~345p      
2016 01  18.61976  12 24 04.613  -03 50 18.25  23.3G 12DQ106   F51  C~345p      
2016 01  18.63164  12 24 04.578  -03 50 18.16  22.5G 12DQ106   F51  C~345p      
2016 01  18.64353  12 24 04.578  -03 50 18.30  23.0G 12DQ106   F51  C~345p      
2016 02  18.59251  12 22 46.524  -03 42 47.49  22.2G 12DQ106   F51  C~345p      
2016 03  01.48392  12 21 57.639  -03 37 45.04  22.7G 12DQ106   F51  C~345p      
2016 03  10.40937  12 21 16.380  -03 33 25.97  22.7G 12DQ106   F51  C~345p      
2016 03  10.42167  12 21 16.333  -03 33 25.97  24.1G 12DQ106   F51  C~345p      
2016 03  10.43390  12 21 16.299  -03 33 25.36  22.7G 12DQ106   F51  C~345p      
2016 03  10.44610  12 21 16.216  -03 33 25.16  22.5G 12DQ106   F51  C~345p      
2016 03  13.42790  12 21 01.874  -03 31 54.10  22.8G 12DQ106   F51  C~345p      
2016 03  13.44295  12 21 01.793  -03 31 53.36  23.1G 12DQ106   F51  C~345p      
2016 03  13.45802  12 21 01.714  -03 31 52.99  22.6G 12DQ106   F51  C~345p      
2016 03  13.47306  12 21 01.641  -03 31 52.41  22.9G 12DQ106   F51  C~345p      
2016 04  01.39016  12 19 27.648  -03 21 47.94  22.7G 12DQ106   F51  C~345p      
2016 04  01.40249  12 19 27.601  -03 21 47.52  22.6G 12DQ106   F51  C~345p      
2016 04  02.37969  12 19 22.747  -03 21 16.10  22.8G 12DQ106   F51  C~345p      
2016 04  02.39137  12 19 22.681  -03 21 15.69  22.0G 12DQ106   F51  C~345p      
2016 04  10.34830  12 18 43.868  -03 17 01.44  22.5G 12DQ106   F51  C~345p      
2016 04  10.36121  12 18 43.801  -03 17 01.00  22.5G 12DQ106   F51  C~345p      
2016 04  10.37418  12 18 43.750  -03 17 00.64  22.9G 12DQ106   F51  C~345p      
2016 04  10.38733  12 18 43.698  -03 17 00.28  22.4G 12DQ106   F51  C~345p      
2016 04  10.44822  12 18 43.398  -03 16 58.31  22.1G 12DQ106   F51  C~345p      
2016 04  10.46161  12 18 43.334  -03 16 57.79  22.7G 12DQ106   F51  C~345p      
2016 04  10.47464  12 18 43.269  -03 16 57.70  22.3G 12DQ106   F51  C~345p      
2016 04  10.48795  12 18 43.206  -03 16 57.14  22.9G 12DQ106   F51  C~345p      
2016 05  04.35773  12 17 01.463  -03 05 36.06  22.7G 12DQ106   F51  C~345p      
2017 01  26.59058  12 30 19.693  -04 30 37.93  23.5G 12DQ106   F51  C~345p      
2017 02  21.52617  12 29 04.351  -04 23 15.43  23.0G 12DQ106   F51  C~345p      
2017 03  19.37219  12 27 07.824  -04 11 07.54  22.3G 12DQ106   F51  C~345p      
2017 03  19.38432  12 27 07.761  -04 11 07.05  22.5G 12DQ106   F51  C~345p      
2017 03  19.39641  12 27 07.704  -04 11 06.67  23.0G 12DQ106   F51  C~345p      
2017 03  19.40847  12 27 07.659  -04 11 06.47  22.4G 12DQ106   F51  C~345p      
2017 03  27.45326  12 26 27.556  -04 06 49.74  22.4G 12DQ106   F51  C~345p      
2017 03  27.46567  12 26 27.526  -04 06 50.15  22.6G 12DQ106   F51  C~345p      
2017 03  27.47811  12 26 27.459  -04 06 49.46  22.8G 12DQ106   F51  C~345p      
2017 03  27.49050  12 26 27.384  -04 06 49.14  23.2G 12DQ106   F51  C~345p      
2017 04  20.31748  12 24 32.248  -03 54 17.94  22.4G 12DQ106   F51  C~345p      
2017 04  20.32986  12 24 32.194  -03 54 17.41  21.4G 12DQ106   F51  C~345p      
2017 04  20.34227  12 24 32.125  -03 54 17.20  22.5G 12DQ106   F51  C~345p      
2017 04  20.35468  12 24 32.068  -03 54 16.87  22.0G 12DQ106   F51  C~345p      
2018 03  18.41174  12 33 46.860  -04 53 35.43  22.3G 12DQ106   F51  C~345p      
2018 03  18.42356  12 33 46.786  -04 53 35.12  22.5G 12DQ106   F51  C~345p      
2018 03  18.43543  12 33 46.738  -04 53 34.76  22.6G 12DQ106   F51  C~345p      
2018 03  18.44729  12 33 46.663  -04 53 34.12  22.5G 12DQ106   F51  C~345p      

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     0.03       0.00    -0.11
     2   0.0599      0.00     0.17       0.00     0.35
     3   0.0600      0.00    -0.01       0.00     0.10
     4   0.7369      0.00    -0.06       0.00     0.08
     5   0.9394      0.00     0.06       0.00    -0.05
     6   0.9394      0.00     0.09       0.00     0.15
     7   1.0292      0.00    -0.24       0.00    -0.20
     8   1.0292      0.00    -0.03       0.00     0.05
     9   1.0293      0.00    -0.00       0.00     0.10
    10   1.0293      0.00    -0.15       0.00    -0.20
    11   1.8402      0.00    -0.07       0.00    -0.06
    12   2.0722      0.00     0.20       0.00    -0.03
    13   2.0723      0.00    -0.17       0.00     0.17
    14   2.0723      0.00     0.07       0.00     0.03
    15   2.0723      0.00     0.07       0.00    -0.06
    16   2.0725      0.00     0.13       0.00    -0.18
    17   2.0725      0.00    -0.21       0.00     0.20
    18   2.1050      0.00    -0.22       0.00     0.09
    19   2.1050      0.00     0.59       0.00    -0.38
    20   2.7657      0.00    -0.05       0.00    -0.01
    21   2.7657      0.00    -0.17       0.00     0.17
    22   2.7657      0.00     0.07       0.00    -0.15
    23   2.7657      0.00    -0.01       0.00    -0.09
    24   2.9680      0.00     0.13       0.00     0.10
    25   2.9680      0.00    -0.25       0.00    -0.06
    26   2.9680      0.00     0.03       0.00    -0.34
    27   2.9681      0.00     0.02       0.00     0.07
    28   2.9897      0.00    -0.43       0.00     0.22
    29   2.9897      0.00     0.15       0.00    -0.20
    30   3.0690      0.00     0.29       0.00    -0.34
    31   3.0690      0.00    -0.07       0.00    -0.27
    32   3.0691      0.00    -0.03       0.00     0.15
    33   3.1209      0.00    -0.10       0.00    -0.05
    34   3.1209      0.00     0.56       0.00    -0.18
    35   3.1371      0.00    -0.44       0.00     0.01
    36   3.1372      0.00    -0.01       0.00     0.14
    37   3.1372      0.00     0.28       0.00     0.17
    38   3.1372      0.00     0.10       0.00    -0.18
    39   3.2055      0.00    -0.20       0.00    -0.05
    40   3.2055      0.00     0.11       0.00    -0.06
    41   3.2056      0.00     0.12       0.00     0.01
    42   3.2056      0.00    -0.26       0.00    -0.17
    43   3.2084      0.00    -0.10       0.00    -0.09
    44   3.2084      0.00     0.08       0.00     0.25
    45   3.2085      0.00     0.22       0.00     0.33
    46   3.2085      0.00    -0.13       0.00     0.17
    47   3.8797      0.00     0.01       0.00    -0.20
    48   3.8798      0.00     0.05       0.00    -0.03
    49   3.8798      0.00    -0.11       0.00     0.18
    50   3.8798      0.00    -0.05       0.00    -0.03
    51   4.0546      0.00    -0.20       0.00    -0.05
    52   4.0929      0.00     0.20       0.00    -0.26
    53   4.0929      0.00     0.02       0.00     0.02
    54   4.0929      0.00    -0.01       0.00     0.13
    55   4.0983      0.00    -0.32       0.00     0.37
    56   4.0984      0.00    -0.10       0.00     0.33
    57   4.0984      0.00    -0.12       0.00     0.22
    58   4.8327      0.00     0.08       0.00    -0.12
    59   4.8328      0.00    -0.06       0.00    -0.01
    60   4.8328      0.00    -0.13       0.00    -0.10
    61   4.8328      0.00     0.09       0.00     0.15
    62   4.8601      0.00    -0.23       0.00     0.04
    63   4.8601      0.00     0.20       0.00     0.01
    64   4.8602      0.00    -0.11       0.00     0.04
    65   4.8602      0.00     0.10       0.00    -0.17
    66   4.9449      0.00     0.06       0.00    -0.18
    67   4.9775      0.00     0.47       0.00     0.05
    68   5.0019      0.00    -0.40       0.00     0.10
    69   5.0019      0.00    -0.21       0.00    -0.28
    70   5.0020      0.00     0.17       0.00    -0.04
    71   5.0020      0.00    -0.18       0.00    -0.20
    72   5.0102      0.00     0.22       0.00    -0.25
    73   5.0102      0.00     0.13       0.00     0.02
    74   5.0103      0.00     0.06       0.00    -0.07
    75   5.0103      0.00     0.08       0.00     0.04
    76   5.0621      0.00    -0.11       0.00     0.02
    77   5.0621      0.00     0.12       0.00     0.05
    78   5.0648      0.00    -0.01       0.00    -0.09
    79   5.0648      0.00    -0.11       0.00    -0.06
    80   5.0866      0.00    -0.16       0.00     0.10
    81   5.0867      0.00    -0.22       0.00     0.13
    82   5.0867      0.00    -0.04       0.00     0.08
    83   5.0867      0.00     0.14       0.00     0.03
    84   5.0869      0.00     0.09       0.00     0.09
    85   5.0869      0.00     0.11       0.00     0.18
    86   5.0870      0.00     0.09       0.00    -0.14
    87   5.0870      0.00     0.11       0.00     0.00
    88   5.1524      0.00    -0.01       0.00     0.00
    89   5.8840      0.00    -0.04       0.00     0.04
    90   5.9550      0.00    -0.07       0.00     0.08
    91   6.0258      0.00    -0.09       0.00     0.03
    92   6.0258      0.00    -0.12       0.00     0.14
    93   6.0258      0.00    -0.06       0.00     0.14
    94   6.0259      0.00     0.17       0.00    -0.04
    95   6.0479      0.00    -0.34       0.00     0.55
    96   6.0479      0.00     0.16       0.00    -0.26
    97   6.0480      0.00     0.11       0.00     0.03
    98   6.0480      0.00    -0.07       0.00    -0.05
    99   6.1132      0.00     0.04       0.00    -0.05
   100   6.1133      0.00     0.08       0.00     0.11
   101   6.1133      0.00    -0.10       0.00    -0.05
   102   6.1133      0.00    -0.10       0.00    -0.09
   103   7.0225      0.00     0.17       0.00    -0.05
   104   7.0225      0.00    -0.06       0.00    -0.10
   105   7.0225      0.00     0.11       0.00    -0.11
   106   7.0225      0.00    -0.13       0.00     0.17

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.

12DQ106    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        43.691    43.691    43.691
ecceobj         0.165     0.165     0.165
incobj          1.124     1.124     1.124
qmin           35.239    35.483    35.569
qmax           52.961    52.634    52.673
amean          43.688    43.744    43.630
amin           43.228    43.203    43.184
amax           44.307    44.294    44.301
emean           0.160     0.163     0.152
emin            0.122     0.136     0.130
emax            0.195     0.190     0.189
imean           4.684     4.337     5.914
imin            2.588     0.779     2.682
imax            6.786     6.647     7.539
excite_mean     0.180     0.182     0.185
fracstop        1.000     1.000     1.000
cjmean          3.057     3.057     3.056

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       181.4     184.3     181.2
kozaiamp        180.0     180.0     179.9