Orbit Fit and Astrometric record for 548141

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: 548141    
# Created Sat Dec  4 02:08:11 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting    102 observations of    102
# Arc:  11.18y
# First observation: 2010/02/04
#  Last observation: 2021/04/09
# Chi-squared of fit:    61.17 DOF:    198 RMS:  0.14
# Min/Max residuals:    -0.33    0.49
# Exact a, adot, b, bdot, g, gdot:
  1.876484E-05  4.809140E-02  6.139975E-06  1.567427E-02  4.001594E-02 -3.282275E-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
    7.846913  145.958740    0.179496    0.132984   -0.964997  2455232.055876
# Heliocentric elements and errors
Epoch:              2455232.5000  =  2010/02/05
Mean Anomaly:          309.30262 +/-     0.000
Argument of Peri:       82.22796 +/-     0.000
Long of Asc Node:      123.67562 +/-     0.000
Inclination:            19.58641 +/-     0.000
Eccentricity:         0.08879155 +/-    0.0000
Semi-Major Axis:     27.34900122 +/-    0.0000
Time of Perihelion: 2462589.3791 +/-       0.0
Perihelion:          24.92064089 +/-    0.0000
Aphelion:            29.77736155 +/-    0.0000
Period (y)              143.0278 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -21.21682221 +/-    0.0000
Ecliptic Y           14.54908431 +/-    0.0000
Ecliptic Z            3.41196325 +/-    0.0000
Ecliptic XDOT        -0.00153358 +/-    0.0000
Ecliptic YDOT        -0.00292731 +/-    0.0000
Ecliptic ZDOT         0.00103165 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   25.95135387 +/-    0.0000
Geocenter to KBO     24.99010867 +/-    0.0000
# Hcoef:  8.08

The following table shows the complete astrometric record for 548141. 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 (548141) followed by the observatory code and reference code for the source of the astrometry.

2010 02  04.55511  10 04 06.897  +20 14 00.72  22.3G 548141    F51  C~344z      
2010 02  04.56449  10 04 06.818  +20 14 01.30  22.2G 548141    F51  C~344z      
2010 02  09.39545  10 03 31.225  +20 18 09.68  22.5G 548141    F51  C~344z      
2010 05  31.27812  09 57 05.973  +20 44 40.01  22.0G 548141    F51  C~344z      
2010 05  31.28728  09 57 05.999  +20 44 40.27  22.7G 548141    F51  C~344z      
2010 06  01.28245  09 57 09.865  +20 44 10.39  22.2G 548141    F51  C~344z      
2010 06  05.29757  09 57 26.776  +20 42 06.21  21.7G 548141    F51  C~344z      
2010 06  05.30608  09 57 26.830  +20 42 06.25  22.0G 548141    F51  C~344z      
2011 02  03.42826  10 16 37.948  +20 03 35.28  21.9G 548141    F51  C~344z      
2011 02  03.43980  10 16 37.877  +20 03 36.06  22.2G 548141    F51  C~344z      
2011 02  04.42369  10 16 30.918  +20 04 29.17  21.5G 548141    F51  C~344z      
2011 02  04.43523  10 16 30.860  +20 04 29.81  23.1G 548141    F51  C~344z      
2012 02  03.60570  10 29 03.050  +19 50 56.75  21.9G 548141    F51  C~344z      
2012 02  03.61714  10 29 02.971  +19 50 57.35  21.7G 548141    F51  C~344z      
2012 02  04.54700  10 28 56.594  +19 51 48.95  21.9G 548141    F51  C~344z      
2012 02  04.55999  10 28 56.527  +19 51 49.97  22.4G 548141    F51  C~344z      
2012 02  14.52996  10 27 45.384  +20 00 57.46  22.8G 548141    F51  C~344z      
2012 02  14.54343  10 27 45.253  +20 00 58.36  22.1G 548141    F51  C~344z      
2012 02  15.35739  10 27 39.301  +20 01 42.01  21.7G 548141    F51  C~344z      
2012 02  15.37124  10 27 39.194  +20 01 42.84  21.8G 548141    F51  C~344z      
2012 02  15.38509  10 27 39.093  +20 01 43.55  22.2G 548141    F51  C~344z      
2012 02  15.39912  10 27 38.979  +20 01 44.28  21.9G 548141    F51  C~344z      
2012 12  29.55209  10 44 17.941  +19 03 12.10  22.2G 548141    F51  C~344z      
2013 02  13.37465  10 40 18.055  +19 44 57.88  21.7G 548141    F51  C~344z      
2013 02  13.38846  10 40 17.966  +19 44 58.78  22.1G 548141    F51  C~344z      
2013 02  13.40228  10 40 17.849  +19 44 59.60  21.8G 548141    F51  C~344z      
2013 02  13.41625  10 40 17.761  +19 45 00.31  22.4G 548141    F51  C~344z      
2013 03  19.44239  10 36 09.149  +20 12 03.78  21.9G 548141    F51  C~344z      
2013 03  19.45341  10 36 09.064  +20 12 04.03  21.7G 548141    F51  C~344z      
2014 01  25.62189  10 54 50.691  +19 07 22.67  20.5G 548141    F51  C~344z      
2014 03  25.50325  10 48 02.274  +19 57 45.61  21.0G 548141    F51  C~344z      
2014 05  16.29827  10 44 43.087  +20 04 49.57  22.2G 548141    F51  C~344z      
2014 05  23.26973  10 44 44.137  +20 02 24.55  22.2G 548141    F51  C~344z      
2014 05  23.28257  10 44 44.151  +20 02 24.27  22.2G 548141    F51  C~344z      
2014 05  23.29546  10 44 44.156  +20 02 24.00  22.1G 548141    F51  C~344z      
2014 05  23.30834  10 44 44.162  +20 02 23.59  22.2G 548141    F51  C~344z      
2015 02  20.56509  11 04 37.666  +19 10 06.43  21.8G 548141    F51  C~344z      
2015 02  20.57867  11 04 37.566  +19 10 06.95  21.4G 548141    F51  C~344z      
2015 02  20.59228  11 04 37.463  +19 10 08.04  21.7G 548141    F51  C~344z      
2015 02  20.60603  11 04 37.374  +19 10 08.71  21.9G 548141    F51  C~344z      
2015 02  23.35911  11 04 17.585  +19 12 45.86  21.7G 548141    F51  C~344z      
2015 02  23.37166  11 04 17.490  +19 12 46.56  22.2G 548141    F51  C~344z      
2015 02  23.38426  11 04 17.399  +19 12 47.22  21.9G 548141    F51  C~344z      
2015 02  23.39682  11 04 17.303  +19 12 48.06  22.2G 548141    F51  C~344z      
2015 03  28.29738  11 00 19.567  +19 38 17.48  22.5G 548141    F51  C~344z      
2015 03  28.31001  11 00 19.488  +19 38 17.80  21.7G 548141    F51  C~344z      
2015 03  28.32263  11 00 19.411  +19 38 17.98  22.1G 548141    F51  C~344z      
2015 03  28.33549  11 00 19.331  +19 38 18.70  22.5G 548141    F51  C~344z      
2015 04  07.40089  10 59 16.331  +19 43 07.81  22.4G 548141    F51  C~344z      
2015 04  07.41401  10 59 16.267  +19 43 08.13  22.0G 548141    F51  C~344z      
2015 04  07.42730  10 59 16.192  +19 43 08.67  21.7G 548141    F51  C~344z      
2015 04  07.44069  10 59 16.129  +19 43 09.22  22.1G 548141    F51  C~344z      
2015 04  09.26710  10 59 05.632  +19 43 50.60  21.4G 548141    F51  C~344z      
2016 01  03.52612  11 21 00.619  +17 57 54.14  21.4G 548141    F51  C~344z      
2016 02  03.46293  11 19 04.324  +18 27 03.12  22.0G 548141    F51  C~344z      
2016 02  03.47588  11 19 04.250  +18 27 04.10  21.9G 548141    F51  C~344z      
2016 02  03.48893  11 19 04.174  +18 27 05.05  22.1G 548141    F51  C~344z      
2016 02  03.50228  11 19 04.096  +18 27 05.68  21.9G 548141    F51  C~344z      
2016 03  07.49182  11 15 20.174  +18 59 16.81  21.9G 548141    F51  C~344z      
2016 03  07.50538  11 15 20.068  +18 59 17.52  21.7G 548141    F51  C~344z      
2016 03  07.51894  11 15 19.971  +18 59 18.41  21.9G 548141    F51  C~344z      
2016 03  07.53247  11 15 19.867  +18 59 19.10  21.8G 548141    F51  C~344z      
2016 03  08.38675  11 15 13.571  +19 00 03.05  21.5G 548141    F51  C~344z      
2016 03  10.35238  11 14 59.018  +19 01 42.49  21.9G 548141    F51  C~344z      
2016 03  10.36530  11 14 58.914  +19 01 43.12  21.9G 548141    F51  C~344z      
2016 03  10.37823  11 14 58.826  +19 01 43.82  22.1G 548141    F51  C~344z      
2016 03  10.39128  11 14 58.726  +19 01 44.45  22.2G 548141    F51  C~344z      
2016 04  04.29342  11 12 04.530  +19 18 16.64  22.3G 548141    F51  C~3450      
2016 04  04.30609  11 12 04.447  +19 18 17.03  22.1G 548141    F51  C~3450      
2016 04  04.31881  11 12 04.355  +19 18 17.35  21.9G 548141    F51  C~3450      
2016 04  04.33157  11 12 04.283  +19 18 17.82  22.1G 548141    F51  C~3450      
2017 02  01.64470  11 31 40.997  +17 56 56.93  22.7G 548141    F51  C~3450      
2017 02  22.40355  11 29 33.873  +18 18 21.19  22.9G 548141    F51  C~3450      
2017 02  22.41623  11 29 33.786  +18 18 22.02  21.5G 548141    F51  C~3450      
2017 03  28.30644  11 25 28.884  +18 47 00.58  22.0G 548141    F51  C~3450      
2017 03  28.31964  11 25 28.786  +18 47 01.00  22.1G 548141    F51  C~3450      
2017 03  28.33287  11 25 28.698  +18 47 01.56  22.2G 548141    F51  C~3450      
2017 03  28.34626  11 25 28.598  +18 47 01.97  21.8G 548141    F51  C~3450      
2017 04  25.36312  11 22 42.919  +18 57 59.93  22.2G 548141    F51  C~3450      
2017 04  25.39011  11 22 42.804  +18 58 00.12  22.5G 548141    F51  C~3450      
2017 04  25.40347  11 22 42.754  +18 58 00.15  22.0G 548141    F51  C~3450      
2017 12  31.56388  11 45 34.298  +16 55 03.22  22.0G 548141    F51  C~3450      
2018 01  14.49658  11 45 16.570  +17 06 41.69  21.8G 548141    F51  C~3450      
2018 01  14.51012  11 45 16.552  +17 06 42.38  22.6G 548141    F51  C~3450      
2018 01  14.52361  11 45 16.517  +17 06 43.15  22.1G 548141    F51  C~3450      
2018 01  14.53712  11 45 16.485  +17 06 43.93  21.9G 548141    F51  C~3450      
2018 02  10.43187  11 43 25.530  +17 33 50.72  22.1G 548141    F51  C~3450      
2018 02  10.44470  11 43 25.458  +17 33 51.49  22.7G 548141    F51  C~3450      
2018 03  10.35107  11 40 18.603  +18 01 55.38  22.1G 548141    F51  C~3450      
2018 03  10.36289  11 40 18.514  +18 01 56.18  21.9G 548141    F51  C~3450      
2018 03  10.37471  11 40 18.435  +18 01 56.63  22.0G 548141    F51  C~3450      
2018 03  10.38654  11 40 18.327  +18 01 57.28  21.3G 548141    F51  C~3450      
2020 04  18.43207  12 00 50.852  +17 18 10.75  22.1w 548141    F51  C~3qGH      
2020 04  18.44576  12 00 50.777  +17 18 11.00  22.0w 548141    F51  C~3qGH      
2020 04  18.45944  12 00 50.683  +17 18 11.60  21.6w 548141    F51  C~3qGH      
2020 04  18.47316  12 00 50.590  +17 18 11.27  21.7w 548141    F51  C~3qGH      
2021 03  18.547765 12 17 00.798  +16 18 09.20  22.2w 548141    F51  C~4gT1      
2021 03  18.558718 12 17 00.706  +16 18 09.86  22.0w 548141    F51  C~4gT1      
2021 04  09.476473 12 14 22.249  +16 34 44.24  21.9w 548141    F51  C~4moT      
2021 04  09.488100 12 14 22.159  +16 34 44.54  21.9w 548141    F51  C~4moU      
2021 04  09.499721 12 14 22.098  +16 34 45.06  22.0w 548141    F51  C~4moU      
2021 04  09.511317 12 14 22.016  +16 34 45.51  21.8w 548141    F51  C~4moU      

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     0.05       0.00    -0.01
     2   0.0000      0.00    -0.09       0.00     0.09
     3   0.0133      0.00     0.22       0.00    -0.24
     4   0.3168      0.00    -0.01       0.00    -0.15
     5   0.3169      0.00    -0.13       0.00     0.38
     6   0.3196      0.00     0.17       0.00    -0.30
     7   0.3306      0.00    -0.20       0.00    -0.27
     8   0.3306      0.00     0.04       0.00     0.05
     9   0.9962      0.00    -0.18       0.00    -0.04
    10   0.9963      0.00     0.00       0.00     0.11
    11   0.9990      0.00    -0.05       0.00     0.07
    12   0.9990      0.00     0.33       0.00     0.08
    13   1.9960      0.00     0.05       0.00     0.14
    14   1.9961      0.00     0.06       0.00     0.11
    15   1.9986      0.00    -0.24       0.00    -0.20
    16   1.9986      0.00     0.12       0.00     0.10
    17   2.0259      0.00     0.22       0.00    -0.11
    18   2.0260      0.00    -0.23       0.00     0.07
    19   2.0282      0.00    -0.01       0.00     0.05
    20   2.0282      0.00    -0.05       0.00     0.13
    21   2.0283      0.00    -0.01       0.00     0.09
    22   2.0283      0.00    -0.14       0.00     0.07
    23   2.8994      0.00     0.15       0.00     0.07
    24   3.0248      0.00    -0.16       0.00    -0.07
    25   3.0249      0.00     0.01       0.00     0.06
    26   3.0249      0.00    -0.22       0.00     0.10
    27   3.0249      0.00    -0.01       0.00     0.02
    28   3.1181      0.00     0.11       0.00    -0.03
    29   3.1181      0.00    -0.02       0.00    -0.18
    30   3.9728      0.00     0.17       0.00     0.40
    31   4.1340      0.00     0.17       0.00    -0.26
    32   4.2758      0.00     0.00       0.00    -0.00
    33   4.2949      0.00    -0.11       0.00    -0.01
    34   4.2949      0.00    -0.00       0.00     0.02
    35   4.2950      0.00    -0.03       0.00     0.06
    36   4.2950      0.00    -0.05       0.00    -0.03
    37   5.0431      0.00    -0.08       0.00    -0.01
    38   5.0432      0.00    -0.10       0.00    -0.26
    39   5.0432      0.00    -0.17       0.00     0.05
    40   5.0433      0.00    -0.00       0.00    -0.07
    41   5.0508      0.00     0.06       0.00     0.07
    42   5.0508      0.00     0.02       0.00     0.06
    43   5.0509      0.00     0.05       0.00     0.00
    44   5.0509      0.00    -0.00       0.00     0.13
    45   5.1410      0.00    -0.22       0.00     0.16
    46   5.1410      0.00    -0.12       0.00     0.06
    47   5.1410      0.00     0.01       0.00    -0.19
    48   5.1411      0.00     0.12       0.00     0.09
    49   5.1686      0.00    -0.04       0.00    -0.16
    50   5.1687      0.00     0.17       0.00    -0.15
    51   5.1687      0.00     0.24       0.00     0.08
    52   5.1687      0.00     0.49       0.00     0.32
    53   5.1737      0.00    -0.02       0.00    -0.05
    54   5.9109      0.00     0.39       0.00    -0.09
    55   5.9956      0.00    -0.02       0.00    -0.29
    56   5.9957      0.00    -0.01       0.00    -0.11
    57   5.9957      0.00    -0.02       0.00     0.04
    58   5.9957      0.00    -0.03       0.00    -0.15
    59   6.0861      0.00     0.03       0.00    -0.09
    60   6.0861      0.00    -0.03       0.00    -0.08
    61   6.0861      0.00     0.05       0.00     0.12
    62   6.0862      0.00     0.02       0.00     0.11
    63   6.0885      0.00     0.10       0.00     0.01
    64   6.0939      0.00    -0.09       0.00    -0.05
    65   6.0939      0.00    -0.19       0.00    -0.07
    66   6.0940      0.00    -0.05       0.00    -0.02
    67   6.0940      0.00    -0.07       0.00    -0.04
    68   6.1622      0.00    -0.04       0.00    -0.08
    69   6.1622      0.00    -0.07       0.00    -0.05
    70   6.1623      0.00    -0.22       0.00    -0.10
    71   6.1623      0.00    -0.06       0.00     0.01
    72   6.9927      0.00     0.16       0.00     0.22
    73   7.0496      0.00     0.20       0.00     0.09
    74   7.0496      0.00     0.23       0.00     0.15
    75   7.1424      0.00    -0.04       0.00     0.04
    76   7.1424      0.00    -0.10       0.00    -0.04
    77   7.1424      0.00    -0.01       0.00     0.02
    78   7.1425      0.00    -0.09       0.00    -0.08
    79   7.2192      0.00    -0.24       0.00     0.07
    80   7.2193      0.00    -0.07       0.00     0.05
    81   7.2193      0.00     0.12       0.00    -0.03
    82   7.9042      0.00     0.10       0.00     0.18
    83   7.9423      0.00    -0.33       0.00     0.01
    84   7.9424      0.00    -0.10       0.00    -0.05
    85   7.9424      0.00    -0.13       0.00    -0.02
    86   7.9425      0.00    -0.11       0.00     0.01
    87   8.0161      0.00     0.04       0.00     0.09
    88   8.0161      0.00     0.08       0.00     0.04
    89   8.0925      0.00    -0.04       0.00    -0.09
    90   8.0926      0.00    -0.06       0.00     0.06
    91   8.0926      0.00     0.07       0.00    -0.14
    92   8.0926      0.00    -0.22       0.00    -0.14
    93  10.2009      0.00    -0.02       0.00     0.09
    94  10.2009      0.00     0.15       0.00     0.03
    95  10.2010      0.00     0.03       0.00     0.32
    96  10.2010      0.00    -0.07       0.00    -0.31
    97  11.1157      0.00     0.04       0.00     0.03
    98  11.1157      0.00    -0.13       0.00     0.10
    99  11.1757      0.00    -0.01       0.00    -0.04
   100  11.1757      0.00    -0.12       0.00    -0.14
   101  11.1758      0.00     0.20       0.00    -0.02
   102  11.1758      0.00     0.20       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.

548141    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        27.463    27.463    27.463
ecceobj         0.088     0.088     0.088
incobj         19.559    19.559    19.559
qmin           23.691    24.786    24.564
qmax           30.525    31.388    31.817
amean          27.240    28.195    28.128
amin           26.581    27.318    27.320
amax           29.180    28.940    28.945
emean           0.075     0.084     0.095
emin            0.004     0.059     0.080
emax            0.115     0.098     0.108
imean          17.828    17.444    17.344
imin           17.217    17.097    16.867
imax           18.450    18.061    18.061
excite_mean     0.316     0.311     0.313
fracstop        0.040     0.020     0.016
cjmean          2.907     2.906     2.907

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       194.0      98.3      91.1
kozaiamp        177.2      31.3      29.5