Orbit Fit and Astrometric record for 555758

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: 555758    
# Created Tue Dec  7 02:08:12 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting    107 observations of    107
# Arc:  10.08y
# First observation: 2011/04/12
#  Last observation: 2021/05/10
# Chi-squared of fit:    96.01 DOF:    208 RMS:  0.17
# Min/Max residuals:    -0.50    0.49
# Exact a, adot, b, bdot, g, gdot:
  1.760044E-05  3.888519E-02  9.276383E-06  1.744546E-02  3.399376E-02 -5.262332E-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
    0.007401 -158.013912    0.001857    0.000087   -1.006053  2455663.885216
# Heliocentric elements and errors
Epoch:              2455664.5000  =  2011/04/13
Mean Anomaly:          338.92360 +/-     0.000
Argument of Peri:       35.82656 +/-     0.000
Long of Asc Node:      201.96940 +/-     0.000
Inclination:            24.20567 +/-     0.000
Eccentricity:         0.25555470 +/-    0.0000
Semi-Major Axis:     39.28992479 +/-    0.0000
Time of Perihelion: 2460930.9050 +/-       0.0
Perihelion:          29.24919972 +/-    0.0000
Aphelion:            49.33064985 +/-    0.0000
Period (y)              246.2805 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -28.20713423 +/-    0.0000
Ecliptic Y          -11.38874109 +/-    0.0000
Ecliptic Z            0.00410157 +/-    0.0000
Ecliptic XDOT         0.00156393 +/-    0.0000
Ecliptic YDOT        -0.00273933 +/-    0.0000
Ecliptic ZDOT         0.00140503 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   30.41956984 +/-    0.0000
Geocenter to KBO     29.41726764 +/-    0.0000
# Hcoef:  7.58

The following table shows the complete astrometric record for 555758. 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 (555758) followed by the observatory code and reference code for the source of the astrometry.

2011 04  12.38445  13 21 18.916  -08 33 27.00  21.7G 555758    F51  C~2rY0      
2011 04  12.39834  13 21 18.817  -08 33 26.11  22.4G 555758    F51  C~2rY0      
2011 04  23.46731  13 20 13.998  -08 25 01.78  22.4G 555758    F51  C~2rY0      
2011 05  01.33996  13 19 29.596  -08 19 12.59  21.7G 555758    F51  C~2rY0      
2012 04  13.40625  13 31 02.609  -08 25 43.88  21.0G 555758    F51  C~2rY0      
2013 04  10.42100  13 41 21.802  -08 20 49.07  22.3G 555758    F51  C~2rY0      
2013 04  10.43463  13 41 21.718  -08 20 48.34  22.5G 555758    F51  C~2rY0      
2013 04  10.44830  13 41 21.629  -08 20 47.56  23.0G 555758    F51  C~2rY0      
2013 04  10.46202  13 41 21.542  -08 20 47.25  22.5G 555758    F51  C~2rY0      
2013 04  19.47008  13 40 27.830  -08 14 00.92  22.4G 555758    F51  C~2rY0      
2013 04  19.48156  13 40 27.758  -08 14 00.80  22.8G 555758    F51  C~2rY0      
2014 02  25.57129  13 54 53.341  -08 41 55.05  22.2w 555758    F51  C~1vXI      
2014 02  25.59651  13 54 53.269  -08 41 54.38  22.3w 555758    F51  C~1vXI      
2014 02  25.60909  13 54 53.224  -08 41 53.67  22.5w 555758    F51  C~1vXI      
2014 03  04.53838  13 54 31.323  -08 38 04.56  22.4G 555758    F51  C~2rY0      
2014 03  04.55129  13 54 31.305  -08 38 03.81  22.0G 555758    F51  C~2rY0      
2014 04  04.44976  13 52 03.486  -08 17 06.93  22.1w 555758    F51  C~1vXI      
2014 04  04.46113  13 52 03.427  -08 17 06.35  22.3w 555758    F51  C~1vXI      
2014 04  04.47249  13 52 03.358  -08 17 05.72  22.2w 555758    F51  C~1vXI      
2014 04  04.48384  13 52 03.262  -08 17 05.13  22.5w 555758    F51  C~1vXI      
2014 04  28.44007  13 49 41.047  -07 59 21.80  22.1w 555758    F51  C~1vXI      
2014 04  28.45301  13 49 40.967  -07 59 21.59  22.2w 555758    F51  C~1vXI      
2014 04  28.46590  13 49 40.899  -07 59 20.97  22.2w 555758    F51  C~1vXI      
2014 05  20.33456  13 47 40.187  -07 44 57.28  22.3G 555758    F51  C~2rY0      
2014 05  20.34752  13 47 40.127  -07 44 56.90  22.5G 555758    F51  C~2rY0      
2014 05  20.36045  13 47 40.056  -07 44 56.36  22.4G 555758    F51  C~2rY0      
2014 05  20.37338  13 47 39.991  -07 44 56.22  22.5G 555758    F51  C~2rY0      
2014 05  30.29754  13 46 54.572  -07 39 33.34  22.4G 555758    F51  C~2rY0      
2014 05  30.30930  13 46 54.531  -07 39 33.03  22.5G 555758    F51  C~2rY0      
2014 06  29.27570  13 45 33.583  -07 29 25.70  22.5w 555758    F51  C~1vXI      
2014 06  29.28680  13 45 33.572  -07 29 25.80  22.9w 555758    F51  C~1vXI      
2014 06  29.29790  13 45 33.556  -07 29 25.58  22.3w 555758    F51  C~1vXI      
2014 06  29.30899  13 45 33.550  -07 29 25.58  22.7w 555758    F51  C~1vXI      
2015 01  24.62403  14 05 12.593  -08 43 52.32  23.0G 555758    F51  C~2rY0      
2015 01  24.63623  14 05 12.599  -08 43 51.90  22.7G 555758    F51  C~2rY0      
2015 01  24.64842  14 05 12.617  -08 43 52.33  22.6G 555758    F51  C~2rY0      
2015 01  26.60938  14 05 15.512  -08 43 30.46  22.4w 555758    F51  C~1vXI      
2015 01  26.62136  14 05 15.532  -08 43 30.33  22.6w 555758    F51  C~1vXI      
2015 01  26.63331  14 05 15.540  -08 43 29.96  22.4w 555758    F51  C~1vXI      
2015 01  26.64531  14 05 15.552  -08 43 30.06  22.7w 555758    F51  C~1vXI      
2015 01  28.61116  14 05 17.922  -08 43 06.08  23.1G 555758    F51  C~2rY0      
2015 01  28.62341  14 05 17.929  -08 43 06.23  22.6G 555758    F51  C~2rY0      
2015 01  28.63569  14 05 17.931  -08 43 05.85  22.7G 555758    F51  C~2rY0      
2015 01  28.64798  14 05 17.952  -08 43 05.86  22.5G 555758    F51  C~2rY0      
2015 01  30.58137  14 05 19.762  -08 42 39.07  22.5w 555758    F51  C~1vXI      
2015 01  30.59348  14 05 19.772  -08 42 39.01  22.6w 555758    F51  C~1vXI      
2015 01  30.60554  14 05 19.784  -08 42 38.73  22.2w 555758    F51  C~1vXI      
2015 02  23.59333  14 05 01.923  -08 33 39.34  22.8G 555758    F51  C~2rY0      
2015 02  23.60636  14 05 01.913  -08 33 38.88  22.8G 555758    F51  C~2rY0      
2015 02  23.61941  14 05 01.860  -08 33 38.57  22.2G 555758    F51  C~2rY0      
2015 02  23.63241  14 05 01.833  -08 33 38.33  22.6G 555758    F51  C~2rY0      
2015 02  24.58154  14 04 59.665  -08 33 09.22  22.1w 555758    F51  C~1vXI      
2015 02  24.59456  14 04 59.655  -08 33 08.69  22.3w 555758    F51  C~1vXI      
2015 02  24.60757  14 04 59.608  -08 33 08.49  22.4w 555758    F51  C~1vXI      
2015 02  24.62062  14 04 59.557  -08 33 07.89  22.4w 555758    F51  C~1vXI      
2015 03  20.55889  14 03 32.939  -08 18 37.08  22.2G 555758    F51  C~2rY0      
2015 03  21.51856  14 03 28.371  -08 17 57.13  22.4G 555758    F51  C~2rY0      
2015 03  21.53125  14 03 28.277  -08 17 56.70  22.3G 555758    F51  C~2rY0      
2015 03  21.54414  14 03 28.250  -08 17 56.34  22.4G 555758    F51  C~2rY0      
2015 04  20.43359  14 00 41.116  -07 56 08.20  22.7G 555758    F51  C~2rY0      
2015 04  20.44625  14 00 41.054  -07 56 08.17  22.1G 555758    F51  C~2rY0      
2015 04  20.45886  14 00 40.995  -07 56 07.46  21.8G 555758    F51  C~2rY0      
2015 04  20.47159  14 00 40.898  -07 56 06.92  22.5G 555758    F51  C~2rY0      
2015 04  21.45645  14 00 34.948  -07 55 23.54  21.4G 555758    F51  C~2rY0      
2015 04  21.46938  14 00 34.865  -07 55 23.11  21.9G 555758    F51  C~2rY0      
2015 04  21.52005  14 00 34.548  -07 55 20.91  22.2G 555758    F51  C~2rY0      
2015 04  21.53300  14 00 34.448  -07 55 20.50  20.3G 555758    F51  C~2rY0      
2016 02  11.57204  14 15 22.993  -08 28 45.32  22.7G 555758    F51  C~2rY0      
2016 02  11.58438  14 15 22.990  -08 28 44.90  22.4G 555758    F51  C~2rY0      
2016 02  11.59679  14 15 22.992  -08 28 44.78  22.3G 555758    F51  C~2rY0      
2016 02  11.60920  14 15 23.004  -08 28 44.36  22.7G 555758    F51  C~2rY0      
2016 03  03.63416  14 14 46.966  -08 18 32.80  22.0G 555758    F51  C~2rY0      
2016 03  03.63957  14 14 46.938  -08 18 32.52  21.8G 555758    F51  C~2rY0      
2016 03  08.49000  14 14 31.324  -08 15 38.15  22.2G 555758    F51  C~2rY0      
2016 03  31.49152  14 12 47.598  -08 00 00.08  21.8G 555758    F51  C~2rY0      
2016 04  04.47357  14 12 25.810  -07 57 05.75  22.6G 555758    F51  C~2rY0      
2016 04  04.48549  14 12 25.746  -07 57 05.13  22.7G 555758    F51  C~2rY0      
2016 04  04.49736  14 12 25.657  -07 57 04.80  22.2G 555758    F51  C~2rY0      
2016 04  04.50932  14 12 25.601  -07 57 04.23  22.8G 555758    F51  C~2rY0      
2016 05  01.41750  14 09 45.517  -07 37 35.12  22.3G 555758    F51  C~2rY0      
2016 05  01.43021  14 09 45.423  -07 37 34.56  21.8G 555758    F51  C~2rY0      
2016 05  01.44289  14 09 45.343  -07 37 34.21  21.4G 555758    F51  C~2rY0      
2016 05  01.45560  14 09 45.275  -07 37 33.61  21.8G 555758    F51  C~2rY0      
2016 06  28.30027  14 05 32.260  -07 10 59.92  22.3G 555758    F51  C~2rY0      
2016 06  28.33937  14 05 32.203  -07 10 59.63  22.6G 555758    F51  C~2rY0      
2017 03  22.48933  14 23 51.434  -07 55 15.91  22.7G 555758    F51  C~2rY0      
2017 04  26.43644  14 20 36.868  -07 30 04.63  21.7G 555758    F51  C~2rY0      
2017 04  26.44892  14 20 36.772  -07 30 03.82  22.2G 555758    F51  C~2rY0      
2017 04  26.46139  14 20 36.694  -07 30 03.40  22.1G 555758    F51  C~2rY0      
2017 04  26.47385  14 20 36.614  -07 30 02.83  22.3G 555758    F51  C~2rY0      
2017 05  02.32316  14 20 00.88   -07 26 00.3   21.7R 555758    G37  C~2Fa8      
2017 05  02.39060  14 20 00.47   -07 25 57.6         555758    G37  C~2Fa8      
2017 05  17.30564  14 18 32.302  -07 16 30.13  22.1G 555758    F51  C~2rY0      
2017 05  17.31726  14 18 32.253  -07 16 29.56  22.3G 555758    F51  C~2rY0      
2017 05  17.32893  14 18 32.172  -07 16 29.48  22.2G 555758    F51  C~2rY0      
2017 05  17.34058  14 18 32.122  -07 16 29.20  21.9G 555758    F51  C~2rY0      
2020 04  29.49978  14 51 34.247  -06 48 15.19  22.0w 555758    F51  C~3st6      
2020 04  29.51198  14 51 34.178  -06 48 14.76  22.0w 555758    F51  C~3st6      
2020 04  29.52421  14 51 34.084  -06 48 14.37  22.0w 555758    F51  C~3st6      
2021 04  09.535391 15 04 01.014  -06 47 13.33  22.1w 555758    F51  C~4i1C      
2021 04  09.547450 15 04 00.965  -06 47 12.65  22.2w 555758    F51  C~4i1C      
2021 04  09.559473 15 04 00.862  -06 47 12.22  22.0w 555758    F51  C~4i1C      
2021 04  09.573691 15 04 00.810  -06 47 11.67  21.8w 555758    F51  C~4i1C      
2021 05  10.396565 15 00 57.781  -06 26 19.11  22.1w 555758    F51  C~4n4R      
2021 05  10.408596 15 00 57.696  -06 26 18.41  21.9w 555758    F51  C~4n4R      
2021 05  10.420571 15 00 57.631  -06 26 17.96  22.0w 555758    F51  C~4n4R      
2021 05  10.432572 15 00 57.553  -06 26 17.80  22.1w 555758    F51  C~4n4R      

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     0.00       0.00    -0.26
     2   0.0000      0.00    -0.23       0.00    -0.01
     3   0.0303      0.00     0.01       0.00    -0.17
     4   0.0519      0.00    -0.49       0.00     0.18
     5   1.0049      0.00    -0.16       0.00    -0.14
     6   1.9960      0.00     0.17       0.00    -0.08
     7   1.9960      0.00     0.14       0.00     0.04
     8   1.9961      0.00     0.05       0.00     0.20
     9   1.9961      0.00    -0.01       0.00    -0.11
    10   2.0208      0.00     0.31       0.00     0.04
    11   2.0208      0.00     0.28       0.00    -0.35
    12   2.8753      0.00     0.08       0.00    -0.06
    13   2.8753      0.00     0.09       0.00    -0.18
    14   2.8754      0.00    -0.03       0.00     0.14
    15   2.8943      0.00    -0.36       0.00    -0.09
    16   2.8944      0.00     0.07       0.00     0.21
    17   2.9790      0.00     0.06       0.00    -0.03
    18   2.9790      0.00     0.17       0.00     0.04
    19   2.9790      0.00     0.13       0.00     0.17
    20   2.9791      0.00    -0.32       0.00     0.25
    21   3.0446      0.00     0.10       0.00     0.30
    22   3.0447      0.00     0.07       0.00    -0.05
    23   3.0447      0.00     0.22       0.00     0.01
    24   3.1046      0.00    -0.06       0.00     0.04
    25   3.1046      0.00     0.02       0.00    -0.04
    26   3.1047      0.00    -0.06       0.00     0.05
    27   3.1047      0.00    -0.05       0.00    -0.26
    28   3.1319      0.00     0.06       0.00    -0.10
    29   3.1319      0.00     0.20       0.00    -0.14
    30   3.2139      0.00     0.08       0.00     0.24
    31   3.2140      0.00     0.11       0.00     0.03
    32   3.2140      0.00     0.07       0.00     0.14
    33   3.2140      0.00     0.17       0.00     0.03
    34   3.7871      0.00    -0.06       0.00    -0.11
    35   3.7871      0.00    -0.25       0.00     0.19
    36   3.7872      0.00    -0.25       0.00    -0.37
    37   3.7925      0.00     0.05       0.00     0.27
    38   3.7926      0.00     0.13       0.00     0.26
    39   3.7926      0.00     0.03       0.00     0.49
    40   3.7926      0.00    -0.01       0.00     0.26
    41   3.7980      0.00     0.12       0.00     0.11
    42   3.7981      0.00     0.05       0.00    -0.20
    43   3.7981      0.00    -0.10       0.00     0.02
    44   3.7981      0.00     0.04       0.00    -0.15
    45   3.8034      0.00    -0.10       0.00     0.16
    46   3.8034      0.00    -0.08       0.00     0.05
    47   3.8035      0.00    -0.02       0.00     0.16
    48   3.8692      0.00    -0.07       0.00    -0.06
    49   3.8692      0.00     0.25       0.00     0.00
    50   3.8692      0.00    -0.09       0.00    -0.08
    51   3.8693      0.00    -0.03       0.00    -0.23
    52   3.8719      0.00     0.16       0.00     0.08
    53   3.8719      0.00     0.49       0.00     0.21
    54   3.8719      0.00     0.27       0.00     0.01
    55   3.8720      0.00    -0.01       0.00     0.21
    56   3.9375      0.00     0.03       0.00    -0.28
    57   3.9401      0.00    -0.03       0.00     0.04
    58   3.9402      0.00    -0.50       0.00    -0.05
    59   3.9402      0.00     0.04       0.00    -0.23
    60   4.0220      0.00    -0.18       0.00     0.41
    61   4.0221      0.00     0.06       0.00    -0.12
    62   4.0221      0.00     0.34       0.00     0.03
    63   4.0221      0.00     0.06       0.00     0.01
    64   4.0248      0.00     0.08       0.00     0.09
    65   4.0249      0.00     0.03       0.00    -0.05
    66   4.0250      0.00    -0.05       0.00    -0.07
    67   4.0250      0.00    -0.35       0.00    -0.23
    68   4.8356      0.00    -0.16       0.00    -0.06
    69   4.8356      0.00    -0.12       0.00     0.08
    70   4.8356      0.00     0.01       0.00    -0.09
    71   4.8357      0.00     0.28       0.00     0.05
    72   4.8932      0.00     0.03       0.00    -0.09
    73   4.8932      0.00    -0.14       0.00     0.00
    74   4.9065      0.00    -0.02       0.00     0.27
    75   4.9695      0.00    -0.09       0.00    -0.06
    76   4.9804      0.00     0.12       0.00    -0.04
    77   4.9804      0.00     0.18       0.00     0.06
    78   4.9805      0.00    -0.14       0.00    -0.13
    79   4.9805      0.00     0.04       0.00    -0.09
    80   5.0542      0.00     0.09       0.00     0.10
    81   5.0542      0.00    -0.15       0.00     0.14
    82   5.0542      0.00    -0.18       0.00    -0.04
    83   5.0543      0.00    -0.02       0.00     0.04
    84   5.2126      0.00    -0.12       0.00     0.04
    85   5.2127      0.00     0.12       0.00    -0.05
    86   5.9442      0.00    -0.03       0.00    -0.10
    87   6.0398      0.00     0.21       0.00    -0.23
    88   6.0399      0.00    -0.07       0.00     0.06
    89   6.0399      0.00    -0.07       0.00    -0.05
    90   6.0399      0.00    -0.10       0.00    -0.01
    91   6.0560      0.00    -0.08       0.00     0.03
    92   6.0561      0.00     0.02       0.00    -0.02
    93   6.0970      0.00    -0.45       0.00    -0.10
    94   6.0970      0.00    -0.18       0.00     0.07
    95   6.0970      0.00    -0.39       0.00    -0.26
    96   6.0971      0.00    -0.13       0.00    -0.39
    97   9.0489      0.00    -0.03       0.00    -0.04
    98   9.0489      0.00     0.08       0.00    -0.10
    99   9.0490      0.00    -0.17       0.00    -0.21
   100   9.9936      0.00     0.08       0.00     0.01
   101   9.9936      0.00     0.32       0.00     0.16
   102   9.9936      0.00    -0.26       0.00     0.07
   103   9.9937      0.00     0.11       0.00     0.01
   104  10.0781      0.00     0.06       0.00    -0.09
   105  10.0781      0.00    -0.07       0.00     0.18
   106  10.0781      0.00     0.10       0.00     0.20
   107  10.0782      0.00     0.08       0.00    -0.08

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.

555758    quality flag:3

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

axisobj        39.225    39.225    39.225
ecceobj         0.254     0.254     0.254
incobj         24.223    24.223    24.223
qmin           26.340    26.340    26.341
qmax           53.138    53.140    53.136
amean          39.454    39.454    39.454
amin           39.000    39.030    39.030
amax           39.998    40.001    39.994
emean           0.268     0.268     0.268
emin            0.177     0.177     0.177
emax            0.331     0.331     0.331
imean          24.027    24.032    24.023
imin           21.691    21.690    21.691
imax           26.881    26.883    26.880
excite_mean     0.490     0.490     0.490
fracstop        1.000     1.000     1.000
cjmean          2.774     2.774     2.774

libcent 0       181.5     181.4     181.5
libamp  0        84.4      84.5      84.1
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        87.0      86.9      87.0
kozaiamp         58.0      58.0      58.0