Orbit Fit and Astrometric record for 554856

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: 554856    
# Created Wed Dec  8 02:08:11 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting    102 observations of    102
# Arc:  11.12y
# First observation: 2010/02/04
#  Last observation: 2021/03/20
# Chi-squared of fit:    88.74 DOF:    198 RMS:  0.16
# Min/Max residuals:    -0.62    0.74
# Exact a, adot, b, bdot, g, gdot:
  1.587258E-05  2.329785E-02  3.182154E-06  3.180802E-03  2.359682E-02 -1.617460E-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
   -3.807141  124.794923   -0.183059   -0.064638   -0.971300  2455231.984306
# Heliocentric elements and errors
Epoch:              2455232.5000  =  2010/02/05
Mean Anomaly:          328.92185 +/-     0.000
Argument of Peri:       12.90630 +/-     0.000
Long of Asc Node:      150.35654 +/-     0.000
Inclination:             8.64850 +/-     0.000
Eccentricity:         0.11068247 +/-    0.0000
Semi-Major Axis:     47.68573001 +/-    0.0000
Time of Perihelion: 2465615.7600 +/-       0.0
Perihelion:          42.40775571 +/-    0.0000
Aphelion:            52.96370432 +/-    0.0000
Period (y)              329.2993 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -24.83211368 +/-    0.0000
Ecliptic Y           35.41631259 +/-    0.0000
Ecliptic Z           -2.81373414 +/-    0.0000
Ecliptic XDOT        -0.00212430 +/-    0.0000
Ecliptic YDOT        -0.00167049 +/-    0.0000
Ecliptic ZDOT         0.00038064 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.34593197 +/-    0.0000
Geocenter to KBO     42.37867298 +/-    0.0000
# Hcoef:  6.17

The following table shows the complete astrometric record for 554856. 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 (554856) followed by the observatory code and reference code for the source of the astrometry.

2010 02  04.48354  08 24 46.114  +15 22 04.12  21.8G 554856    F51  C~346C      
2010 02  04.49295  08 24 46.076  +15 22 04.76  22.0G 554856    F51  C~346C      
2011 01  25.36997  08 31 08.927  +15 10 14.04  22.6G 554856    F51  C~346C      
2013 01  21.52155  08 42 34.340  +14 50 21.07  22.8G 554856    F51  C~346C      
2013 02  03.33603  08 41 33.401  +14 54 41.40  22.5G 554856    F51  C~346C      
2013 02  03.35068  08 41 33.331  +14 54 41.60  22.3G 554856    F51  C~346C      
2013 02  03.36532  08 41 33.257  +14 54 42.02  22.4G 554856    F51  C~346C      
2013 02  03.38003  08 41 33.188  +14 54 42.30  22.2G 554856    F51  C~346C      
2013 03  03.25342  08 39 31.953  +15 04 08.17  22.3G 554856    F51  C~346C      
2013 03  03.26775  08 39 31.939  +15 04 08.28  22.5G 554856    F51  C~346C      
2013 05  10.25639  08 38 20.480  +15 15 29.25  22.0G 554856    F51  C~346C      
2013 05  10.26055  08 38 20.489  +15 15 29.12  21.7G 554856    F51  C~346C      
2013 05  10.26472  08 38 20.496  +15 15 29.13  21.5G 554856    F51  C~346C      
2013 05  10.26888  08 38 20.515  +15 15 29.13  21.8G 554856    F51  C~346C      
2013 10  22.62405  08 51 13.833  +14 29 57.06  23.0G 554856    F51  C~346C      
2013 10  22.64923  08 51 13.883  +14 29 56.43  22.2G 554856    F51  C~346C      
2014 01  05.42714  08 49 23.709  +14 35 00.93  22.9G 554856    F51  C~346C      
2014 01  05.44230  08 49 23.625  +14 35 01.32  22.3G 554856    F51  C~346C      
2014 01  05.45742  08 49 23.579  +14 35 01.73  22.0G 554856    F51  C~346C      
2014 01  05.47256  08 49 23.508  +14 35 01.88  22.2G 554856    F51  C~346C      
2014 11  29.50845  08 56 49.385  +14 17 09.02  22.8G 554856    F51  C~346C      
2014 11  29.52104  08 56 49.392  +14 17 08.86  22.6G 554856    F51  C~346C      
2014 11  29.53363  08 56 49.358  +14 17 09.49  22.4G 554856    F51  C~346C      
2014 11  29.54626  08 56 49.328  +14 17 09.71  22.4G 554856    F51  C~346C      
2015 01  24.52981  08 53 34.732  +14 30 09.63  22.3G 554856    F51  C~346C      
2015 01  24.54359  08 53 34.685  +14 30 09.89  22.1G 554856    F51  C~346C      
2015 01  26.50730  08 53 25.406  +14 30 51.02  22.5G 554856    F51  C~346C      
2015 01  26.52104  08 53 25.351  +14 30 51.29  22.4G 554856    F51  C~346C      
2015 01  26.53489  08 53 25.269  +14 30 51.39  22.2G 554856    F51  C~346C      
2015 01  26.54862  08 53 25.193  +14 30 51.89  22.3G 554856    F51  C~346C      
2015 02  18.29016  08 51 38.967  +14 39 02.96  22.3G 554856    F51  C~346C      
2015 02  18.30312  08 51 38.906  +14 39 03.28  22.4G 554856    F51  C~346C      
2015 02  18.31589  08 51 38.874  +14 39 03.73  22.4G 554856    F51  C~346C      
2015 02  18.32865  08 51 38.829  +14 39 04.66  22.6G 554856    F51  C~346C      
2015 02  19.29197  08 51 34.526  +14 39 24.67  22.7G 554856    F51  C~346C      
2015 02  19.30490  08 51 34.472  +14 39 24.77  21.7G 554856    F51  C~346C      
2015 02  19.31765  08 51 34.409  +14 39 25.15  22.7G 554856    F51  C~346C      
2015 02  19.33052  08 51 34.353  +14 39 25.53  22.2G 554856    F51  C~346C      
2016 01  15.55174  08 59 53.543  +14 15 41.83  22.0G 554856    F51  C~346C      
2016 01  15.56378  08 59 53.496  +14 15 41.87  21.8G 554856    F51  C~346C      
2016 01  15.57584  08 59 53.441  +14 15 42.10  22.2G 554856    F51  C~346C      
2016 01  15.58789  08 59 53.419  +14 15 41.89  21.9G 554856    F51  C~346C      
2016 01  21.37487  08 59 27.108  +14 17 39.45  21.9G 554856    F51  C~346C      
2016 01  21.38493  08 59 27.091  +14 17 39.43  22.0G 554856    F51  C~346C      
2016 02  02.37246  08 58 30.771  +14 21 56.68  22.5G 554856    F51  C~346C      
2016 02  02.38406  08 58 30.709  +14 21 56.77  22.3G 554856    F51  C~346C      
2016 02  02.39567  08 58 30.651  +14 21 57.22  22.1G 554856    F51  C~346C      
2016 02  02.40729  08 58 30.600  +14 21 57.54  21.7G 554856    F51  C~346C      
2016 02  14.31645  08 57 34.701  +14 26 22.02  21.9G 554856    F51  C~346C      
2016 02  15.38056  08 57 29.820  +14 26 45.78  21.9G 554856    F51  C~346C      
2016 02  28.26633  08 56 33.490  +14 31 25.47  21.8G 554856    F51  C~346C      
2016 02  28.27994  08 56 33.441  +14 31 25.80  22.2G 554856    F51  C~346C      
2016 02  28.29347  08 56 33.381  +14 31 26.12  22.5G 554856    F51  C~346C      
2016 02  28.30698  08 56 33.327  +14 31 26.28  22.5G 554856    F51  C~346C      
2016 02  28.31217  08 56 33.318  +14 31 26.54  22.1G 554856    F51  C~346C      
2016 02  28.32338  08 56 33.261  +14 31 26.86  22.6G 554856    F51  C~346C      
2016 02  28.33460  08 56 33.214  +14 31 26.88  22.0G 554856    F51  C~346C      
2016 03  07.27202  08 56 02.075  +14 34 09.10  22.4G 554856    F51  C~346C      
2016 03  25.40280  08 55 05.680  +14 39 29.69  22.4G 554856    F51  C~346C      
2016 04  04.34311  08 54 45.259  +14 41 47.06  22.6G 554856    F51  C~346C      
2016 04  20.28064  08 54 30.513  +14 44 17.90  22.2G 554856    F51  C~346C      
2016 12  22.49696  09 06 59.678  +13 57 13.81  22.6G 554856    F51  C~346C      
2016 12  22.50859  09 06 59.643  +13 57 14.19  22.6G 554856    F51  C~346C      
2016 12  22.52022  09 06 59.610  +13 57 14.57  22.0G 554856    F51  C~346C      
2016 12  22.53185  09 06 59.572  +13 57 14.44  22.4G 554856    F51  C~346C      
2017 01  26.38108  09 04 36.929  +14 07 51.97  22.3G 554856    F51  C~346C      
2017 01  26.39185  09 04 36.891  +14 07 52.11  21.7G 554856    F51  C~346C      
2017 01  26.40264  09 04 36.835  +14 07 52.28  21.8G 554856    F51  C~346C      
2017 01  26.41356  09 04 36.776  +14 07 52.66  22.4G 554856    F51  C~346C      
2017 01  27.52455  09 04 31.561  +14 08 16.97  22.3G 554856    F51  C~346C      
2017 01  27.53669  09 04 31.504  +14 08 17.38  22.7G 554856    F51  C~346C      
2017 01  27.54888  09 04 31.449  +14 08 17.49  22.3G 554856    F51  C~346C      
2017 01  27.56112  09 04 31.390  +14 08 17.69  22.3G 554856    F51  C~346C      
2017 02  03.50394  09 03 58.596  +14 10 52.81  22.1G 554856    F51  C~346C      
2017 02  03.51665  09 03 58.552  +14 10 53.02  22.0G 554856    F51  C~346C      
2017 02  03.52938  09 03 58.494  +14 10 53.79  22.7G 554856    F51  C~346C      
2017 02  03.54209  09 03 58.434  +14 10 53.74  22.0G 554856    F51  C~346C      
2017 02  21.33150  09 02 36.300  +14 17 36.15  22.2G 554856    F51  C~346C      
2017 02  21.34313  09 02 36.242  +14 17 36.52  22.0G 554856    F51  C~346C      
2017 02  21.35486  09 02 36.213  +14 17 36.66  23.3G 554856    F51  C~346C      
2017 02  21.36663  09 02 36.168  +14 17 37.16  22.3G 554856    F51  C~346C      
2017 03  27.35041  09 00 35.594  +14 28 36.11  23.1G 554856    F51  C~346C      
2017 03  27.36184  09 00 35.559  +14 28 35.97  22.8G 554856    F51  C~346C      
2018 01  16.41455  09 10 59.790  +13 51 53.94  22.4G 554856    F51  C~346C      
2018 01  16.42639  09 10 59.740  +13 51 54.12  22.5G 554856    F51  C~346C      
2018 01  16.43823  09 10 59.688  +13 51 54.35  22.4G 554856    F51  C~346C      
2018 01  16.45007  09 10 59.635  +13 51 54.56  22.1G 554856    F51  C~346C      
2018 02  20.28906  09 08 18.502  +14 04 59.93  22.1G 554856    F51  C~346C      
2018 02  20.30068  09 08 18.444  +14 05 00.08  22.5G 554856    F51  C~346C      
2018 02  20.31231  09 08 18.389  +14 05 00.40  21.7G 554856    F51  C~346C      
2018 02  20.32397  09 08 18.345  +14 05 00.53  22.4G 554856    F51  C~346C      
2018 03  07.23774  09 07 15.610  +14 10 28.97  22.2G 554856    F51  C~346C      
2018 03  07.24937  09 07 15.567  +14 10 29.20  22.2G 554856    F51  C~346C      
2018 03  07.26099  09 07 15.520  +14 10 29.39  22.7G 554856    F51  C~346C      
2018 03  07.27263  09 07 15.475  +14 10 29.66  22.3G 554856    F51  C~346C      
2018 03  17.27651  09 06 39.653  +14 13 48.16  22.6G 554856    F51  C~346C      
2021 02  07.36521  09 26 05.763  +13 20 32.92  22.4w 554856    F51  C~4Z7V      
2021 02  07.37685  09 26 05.707  +13 20 33.04  22.3w 554856    F51  C~4Z7V      
2021 02  07.40017  09 26 05.610  +13 20 33.69  22.4w 554856    F51  C~4Z7V      
2021 03  20.144850 09 23 13.374  +13 36 11.99  22.4G 554856    G37  C~4hye      
2021 03  20.185930 09 23 13.242  +13 36 12.81        554856    G37  C~4hye      
2021 03  20.225080 09 23 13.102  +13 36 13.61        554856    G37  C~4hye      

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    -0.11       0.00    -0.20
     2   0.0000      0.00    -0.00       0.00     0.26
     3   0.9716      0.00    -0.17       0.00     0.02
     4   2.9625      0.00     0.00       0.00    -0.18
     5   2.9975      0.00     0.08       0.00     0.10
     6   2.9976      0.00     0.09       0.00    -0.01
     7   2.9976      0.00     0.03       0.00     0.11
     8   2.9977      0.00     0.06       0.00     0.08
     9   3.0740      0.00    -0.62       0.00     0.28
    10   3.0740      0.00    -0.01       0.00     0.11
    11   3.2602      0.00     0.27       0.00     0.06
    12   3.2602      0.00     0.29       0.00    -0.06
    13   3.2602      0.00     0.27       0.00    -0.05
    14   3.2602      0.00     0.44       0.00    -0.04
    15   3.7129      0.00     0.04       0.00     0.10
    16   3.7130      0.00     0.11       0.00    -0.27
    17   3.9177      0.00     0.06       0.00    -0.12
    18   3.9178      0.00    -0.23       0.00     0.01
    19   3.9178      0.00     0.06       0.00     0.16
    20   3.9178      0.00    -0.03       0.00     0.05
    21   4.8159      0.00    -0.16       0.00    -0.37
    22   4.8160      0.00     0.24       0.00    -0.58
    23   4.8160      0.00     0.03       0.00    -0.01
    24   4.8161      0.00    -0.11       0.00     0.15
    25   4.9693      0.00    -0.04       0.00     0.03
    26   4.9694      0.00     0.24       0.00     0.00
    27   4.9747      0.00     0.01       0.00     0.04
    28   4.9748      0.00     0.18       0.00     0.02
    29   4.9748      0.00    -0.05       0.00    -0.17
    30   4.9749      0.00    -0.21       0.00     0.05
    31   5.0371      0.00    -0.25       0.00    -0.13
    32   5.0372      0.00    -0.28       0.00    -0.09
    33   5.0372      0.00     0.10       0.00     0.08
    34   5.0372      0.00     0.30       0.00     0.74
    35   5.0399      0.00    -0.07       0.00     0.06
    36   5.0399      0.00    -0.01       0.00    -0.12
    37   5.0399      0.00    -0.09       0.00    -0.02
    38   5.0400      0.00    -0.06       0.00     0.09
    39   5.9441      0.00    -0.28       0.00     0.19
    40   5.9441      0.00    -0.17       0.00    -0.01
    41   5.9441      0.00    -0.17       0.00    -0.01
    42   5.9442      0.00     0.32       0.00    -0.46
    43   5.9600      0.00    -0.35       0.00     0.13
    44   5.9600      0.00     0.11       0.00    -0.10
    45   5.9929      0.00     0.02       0.00    -0.07
    46   5.9929      0.00    -0.07       0.00    -0.24
    47   5.9929      0.00    -0.10       0.00    -0.05
    48   5.9929      0.00    -0.02       0.00     0.01
    49   6.0256      0.00    -0.06       0.00    -0.14
    50   6.0285      0.00     0.05       0.00    -0.01
    51   6.0637      0.00    -0.21       0.00    -0.05
    52   6.0638      0.00    -0.09       0.00    -0.01
    53   6.0638      0.00    -0.14       0.00     0.02
    54   6.0639      0.00    -0.10       0.00    -0.11
    55   6.0639      0.00     0.09       0.00     0.04
    56   6.0639      0.00    -0.06       0.00     0.13
    57   6.0639      0.00    -0.05       0.00    -0.09
    58   6.0857      0.00    -0.31       0.00    -0.01
    59   6.1353      0.00     0.24       0.00    -0.09
    60   6.1625      0.00    -0.10       0.00    -0.11
    61   6.2062      0.00    -0.10       0.00     0.02
    62   6.8803      0.00     0.13       0.00     0.09
    63   6.8803      0.00     0.17       0.00     0.31
    64   6.8803      0.00     0.24       0.00     0.53
    65   6.8804      0.00     0.24       0.00     0.25
    66   6.9758      0.00    -0.14       0.00     0.04
    67   6.9758      0.00     0.06       0.00    -0.05
    68   6.9758      0.00    -0.01       0.00    -0.12
    69   6.9759      0.00    -0.11       0.00     0.02
    70   6.9789      0.00    -0.03       0.00    -0.06
    71   6.9789      0.00    -0.02       0.00     0.09
    72   6.9790      0.00     0.03       0.00    -0.07
    73   6.9790      0.00     0.02       0.00    -0.14
    74   6.9980      0.00    -0.24       0.00    -0.08
    75   6.9980      0.00     0.02       0.00    -0.15
    76   6.9981      0.00     0.06       0.00     0.33
    77   6.9981      0.00     0.08       0.00    -0.00
    78   7.0468      0.00    -0.12       0.00    -0.10
    79   7.0468      0.00    -0.20       0.00     0.01
    80   7.0469      0.00     0.15       0.00    -0.11
    81   7.0469      0.00     0.27       0.00     0.13
    82   7.1400      0.00     0.06       0.00     0.30
    83   7.1400      0.00    -0.04       0.00    -0.01
    84   7.9478      0.00    -0.03       0.00     0.07
    85   7.9478      0.00     0.02       0.00     0.01
    86   7.9479      0.00     0.03       0.00    -0.01
    87   7.9479      0.00     0.03       0.00    -0.04
    88   8.0433      0.00     0.06       0.00    -0.00
    89   8.0433      0.00    -0.01       0.00    -0.12
    90   8.0433      0.00    -0.04       0.00    -0.07
    91   8.0434      0.00     0.09       0.00    -0.21
    92   8.0842      0.00    -0.09       0.00    -0.00
    93   8.0842      0.00    -0.05       0.00    -0.02
    94   8.0843      0.00    -0.07       0.00    -0.07
    95   8.0843      0.00    -0.06       0.00    -0.05
    96   8.1117      0.00     0.24       0.00     0.08
    97  11.0086      0.00    -0.08       0.00     0.18
    98  11.0086      0.00    -0.09       0.00     0.02
    99  11.0087      0.00     0.12       0.00     0.09
   100  11.1202      0.00     0.02       0.00    -0.07
   101  11.1203      0.00     0.12       0.00    -0.05
   102  11.1204      0.00     0.01       0.00    -0.01

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.

554856    quality flag:3

Type:           2:1E      2:1E      2:1E

axisobj        47.994    47.994    47.994
ecceobj         0.113     0.113     0.113
incobj          8.642     8.642     8.642
qmin           40.319    40.199    40.433
qmax           56.018    56.050    55.866
amean          47.797    47.797    47.797
amin           47.276    47.277    47.276
amax           48.375    48.395    48.379
emean           0.121     0.122     0.120
emin            0.071     0.071     0.071
emax            0.158     0.159     0.155
imean           6.952     6.875     7.037
imin            5.884     5.663     6.009
imax            8.830     8.836     8.825
excite_mean     0.173     0.173     0.173
fracstop        1.000     1.000     1.000
cjmean          3.112     3.112     3.112

libcent 0       177.8     177.8     177.9
libamp  0       165.3     165.1     165.4
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       134.0     131.8     136.0
kozaiamp        109.7     109.4     110.3