Orbit Fit and Astrometric record for 60454

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: 60454     
# Created Thu Dec  9 02:06:48 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting    104 observations of    104
# Arc:  20.23y
# First observation: 2000/02/05
#  Last observation: 2020/04/28
# Chi-squared of fit:   149.98 DOF:    202 RMS:  0.21
# Min/Max residuals:    -0.79    0.68
# Exact a, adot, b, bdot, g, gdot:
  1.584183E-05  2.196910E-02 -8.333452E-08 -4.149719E-04  2.318299E-02 -1.678683E-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
   -0.428092  161.791358    0.425323   -0.006892   -0.892692  2451579.916703
# Heliocentric elements and errors
Epoch:              2451580.5000  =  2000/02/06
Mean Anomaly:          277.07924 +/-     0.000
Argument of Peri:      293.59998 +/-     0.000
Long of Asc Node:      320.09916 +/-     0.000
Inclination:             1.16321 +/-     0.000
Eccentricity:         0.08320503 +/-    0.0000
Semi-Major Axis:     44.17261431 +/-    0.0000
Time of Perihelion: 2476280.0385 +/-       0.0
Perihelion:          40.49723068 +/-    0.0000
Aphelion:            47.84799794 +/-    0.0000
Period (y)              293.5877 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -41.68232234 +/-    0.0000
Ecliptic Y           14.16377617 +/-    0.0000
Ecliptic Z           -0.32226977 +/-    0.0000
Ecliptic XDOT        -0.00062773 +/-    0.0000
Ecliptic YDOT        -0.00251950 +/-    0.0000
Ecliptic ZDOT        -0.00004742 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.02427888 +/-    0.0000
Geocenter to KBO     43.13515686 +/-    0.0000
# Hcoef:  6.73

The following table shows the complete astrometric record for 60454. 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 (60454) followed by the observatory code and reference code for the source of the astrometry.

2000 02  05.41596  10 52 10.01   +06 44 39.4   22.0R 60454     695  Cb1115      
2000 02  05.52102  10 52 09.59   +06 44 42.0         60454     695  Cb1115      
2000 03  01.28777  10 50 24.89   +06 55 12.8   22.5R 60454     695  Cb1115      
2000 03  01.37240  10 50 24.47   +06 55 14.7         60454     695  Cb1115      
2000 04  10.14771  10 47 45.78   +07 11 21.4   24.2R 60454     695  Cb4131      
2000 04  10.23363  10 47 45.47   +07 11 22.5         60454     695  Cb4131      
2001 02  25.48097  10 55 22.53   +06 23 15.3   22.7R 60454     568  Cd0809      
2001 02  25.52039  10 55 22.34   +06 23 16.1         60454     568  Cd0809      
2001 03  24.19064  10 53 27.64   +06 34 57.3   22.5R 60454     695  Cd0809      
2001 03  24.34426  10 53 27.00   +06 35 01.0         60454     695  Cd0809      
2002 02  04.59727  11 01 30.17   +05 43 55.3   22.1R 60454     568  Cf1711      
2002 02  05.54521  11 01 26.62   +05 44 16.9         60454     568  Cf1711      
2002 02  05.60646  11 01 26.38   +05 44 18.4         60454     568  Cf1711      
2002 02  08.36435  11 01 15.79   +05 45 23.1   22.5R 60454     695  Ch1183      
2002 02  15.22902  11 00 48.04   +05 48 12.2   20.5R 60454     304   f1711      
2002 02  15.25108  11 00 47.94   +05 48 12.8         60454     304   f1711      
2002 03  18.29452  10 58 33.67   +06 01 57.3   22.2R 60454     695  Cf4565      
2002 03  20.21598  10 58 25.56   +06 02 47.1         60454     695  Cf4565      
2002 03  20.34215  10 58 25.04   +06 02 50.4         60454     695  Cf4565      
2003 03  30.22932  11 02 27.18   +05 36 14.6   22.3R 60454     695  Ch7880      
2003 03  30.32694  11 02 26.81   +05 36 17.0         60454     695  Ch7880      
2006 03  02.39120  11 18 33.68   +03 50 14.5   21.8R 60454     695  Cq7876      
2006 03  02.49559  11 18 33.22   +03 50 17.2         60454     695  Cq7876      
2010 12  15.568028 11 44 59.528  +00 54 09.25  23.3G 60454     F51  C~41ny      
2011 04  02.305542 11 40 06.571  +01 24 20.64  22.7G 60454     F51  C~41ny      
2011 04  02.320683 11 40 06.525  +01 24 20.88  22.6G 60454     F51  C~41ny      
2011 04  02.336847 11 40 06.448  +01 24 21.40  23.0G 60454     F51  C~41ny      
2011 04  02.351935 11 40 06.380  +01 24 21.90  22.6G 60454     F51  C~41ny      
2012 03  20.372720 11 45 46.370  +00 46 13.49  22.6G 60454     F51  C~41ny      
2012 03  20.387361 11 45 46.327  +00 46 13.65  22.7G 60454     F51  C~41ny      
2012 03  20.401973 11 45 46.256  +00 46 14.39  23.6G 60454     F51  C~41ny      
2012 03  20.416584 11 45 46.200  +00 46 14.81  22.1G 60454     F51  C~41ny      
2013 04  05.379787 11 49 27.543  +00 20 53.12  23.0G 60454     F51  C~41ny      
2013 12  14.647965 11 59 04.095  -00 41 20.06  22.1G 60454     F51  C~41ny      
2014 02  28.455196 11 56 53.563  -00 28 39.21  22.8G 60454     F51  C~41ny      
2014 02  28.467262 11 56 53.508  -00 28 38.86  22.8G 60454     F51  C~41ny      
2014 02  28.479342 11 56 53.468  -00 28 38.28  23.1G 60454     F51  C~41ny      
2014 02  28.491426 11 56 53.405  -00 28 38.00  22.8G 60454     F51  C~41ny      
2014 03  24.430830 11 55 09.970  -00 17 35.13  22.9G 60454     F51  C~41ny      
2014 03  24.443158 11 55 09.908  -00 17 34.79  23.2G 60454     F51  C~41ny      
2015 02  02.615320 12 03 15.023  -01 10 56.37  23.2G 60454     F51  C~41ny      
2015 02  15.526950 12 02 34.970  -01 06 49.07  23.1G 60454     F51  C~41ny      
2015 02  24.495071 12 02 01.732  -01 03 21.16  22.9G 60454     F51  C~41ny      
2015 02  25.472559 12 01 57.886  -01 02 56.81  23.3G 60454     F51  C~41ny      
2015 02  27.551601 12 01 49.620  -01 02 04.81  23.2G 60454     F51  C~41ny      
2015 03  22.432184 12 00 11.594  -00 51 37.46  23.4G 60454     F51  C~41ny      
2015 03  22.446012 12 00 11.520  -00 51 37.47  22.6G 60454     F51  C~41ny      
2015 04  13.381926 11 58 38.132  -00 41 29.65  23.2G 60454     F51  C~41ny      
2015 04  13.392774 11 58 38.098  -00 41 29.50  23.4G 60454     F51  C~41ny      
2015 04  13.403605 11 58 38.047  -00 41 29.40  22.5G 60454     F51  C~41ny      
2015 04  13.414410 11 58 38.006  -00 41 29.12  22.5G 60454     F51  C~41ny      
2016 01  18.604015 12 08 36.986  -01 46 48.00  22.7G 60454     F51  C~41ny      
2016 01  18.615908 12 08 36.986  -01 46 47.91  22.5G 60454     F51  C~41ny      
2016 01  18.627781 12 08 36.943  -01 46 47.80  22.7G 60454     F51  C~41ny      
2016 03  03.323237 12 06 23.99   -01 33 10.9         60454     W84  C~3ejN      
2016 03  03.324276 12 06 23.98   -01 33 10.9         60454     W84  C~3ejN      
2016 03  10.404753 12 05 54.060  -01 30 00.65  23.1G 60454     F51  C~41ny      
2016 03  10.417022 12 05 54.005  -01 30 00.25  23.3G 60454     F51  C~41ny      
2016 03  10.441484 12 05 53.904  -01 30 00.00  23.2G 60454     F51  C~41ny      
2016 04  01.362331 12 04 17.869  -01 19 41.19  22.4G 60454     F51  C~41ny      
2016 04  01.374638 12 04 17.824  -01 19 40.68  23.2G 60454     F51  C~41ny      
2016 04  01.386947 12 04 17.779  -01 19 40.30  23.8G 60454     F51  C~41ny      
2016 04  01.399284 12 04 17.697  -01 19 39.95  22.9G 60454     F51  C~41ny      
2016 04  02.368674 12 04 13.559  -01 19 13.18  23.9G 60454     F51  C~41ny      
2016 04  02.380333 12 04 13.484  -01 19 12.63  23.0G 60454     F51  C~41ny      
2016 04  02.392020 12 04 13.431  -01 19 12.13  23.1G 60454     F51  C~41ny      
2016 04  02.403702 12 04 13.388  -01 19 12.16  23.3G 60454     F51  C~41ny      
2016 04  10.444356 12 03 39.498  -01 15 30.66  22.6G 60454     F51  C~41ny      
2016 04  10.457752 12 03 39.425  -01 15 30.57  23.3G 60454     F51  C~41ny      
2016 04  10.470792 12 03 39.373  -01 15 30.13  22.8G 60454     F51  C~41ny      
2016 04  10.484092 12 03 39.308  -01 15 29.87  22.5G 60454     F51  C~41ny      
2017 01  26.623870 12 13 13.022  -02 18 08.40  23.0G 60454     F51  C~41ny      
2017 02  21.559295 12 11 57.192  -02 10 25.90  22.9G 60454     F51  C~41ny      
2017 03  02.262859 12 11 23.44   -02 06 53.3         60454     W84  C~3ejN      
2017 03  02.264034 12 11 23.42   -02 06 53.3         60454     W84  C~3ejN      
2017 04  20.352117 12 07 54.900  -01 44 27.97  22.5G 60454     F51  C~41ny      
2018 03  18.403250 12 15 11.321  -02 32 58.25  22.7G 60454     F51  C~41ny      
2018 03  18.415053 12 15 11.237  -02 32 58.03  22.4G 60454     F51  C~41ny      
2018 03  18.426909 12 15 11.189  -02 32 57.53  23.3G 60454     F51  C~41ny      
2018 03  18.438770 12 15 11.128  -02 32 57.30  22.7G 60454     F51  C~41ny      
2018 04  10.18182  12 13 31.645  -02 22 15.29  22.9R 60454     G37  C~2c3C      
2018 04  10.24732  12 13 31.322  -02 22 13.96        60454     G37  C~2c3C      
2019 02  04.599109 12 22 41.022  -03 22 06.75  23.2G 60454     F51  C~41ny      
2019 04  03.409320 12 18 58.181  -02 58 48.07  22.5G 60454     F51  C~41ny      
2019 04  03.424444 12 18 58.133  -02 58 47.59  22.6G 60454     F51  C~41ny      
2019 04  03.439556 12 18 58.060  -02 58 47.44  23.3G 60454     F51  C~41ny      
2019 06  05.267708 12 15 45.914  -02 37 26.91  23.0G 60454     F51  C~41ny      
2019 06  05.279484 12 15 45.902  -02 37 26.77  23.5G 60454     F51  C~41ny      
2019 06  05.303001 12 15 45.896  -02 37 26.48  23.2G 60454     F51  C~41ny      
2020 04  19.347735 12 22 44.713  -03 24 25.35  22.5G 60454     F51  C~41ny      
2020 04  19.361260 12 22 44.691  -03 24 25.34  22.6G 60454     F51  C~41ny      
2020 04  19.374816 12 22 44.615  -03 24 24.99  22.7G 60454     F51  C~41ny      
2020 04  19.388374 12 22 44.554  -03 24 24.56  23.1G 60454     F51  C~41ny      
2020 04  20.311031 12 22 40.864  -03 24 00.57  22.7G 60454     F51  C~41ny      
2020 04  20.322892 12 22 40.811  -03 24 00.14  22.4G 60454     F51  C~41ny      
2020 04  20.334737 12 22 40.784  -03 23 59.79  22.9G 60454     F51  C~41ny      
2020 04  22.286971 12 22 33.084  -03 23 09.73  22.8G 60454     F51  C~41ny      
2020 04  22.299682 12 22 33.042  -03 23 09.10  22.5G 60454     F51  C~41ny      
2020 04  22.312235 12 22 32.976  -03 23 09.00  22.5G 60454     F51  C~41ny      
2020 04  22.324719 12 22 32.941  -03 23 08.54  22.6G 60454     F51  C~41ny      
2020 04  26.331621 12 22 17.649  -03 21 28.19  22.6G 60454     F51  C~41ny      
2020 04  26.355440 12 22 17.548  -03 21 27.77  22.6G 60454     F51  C~41ny      
2020 04  28.398297 12 22 10.029  -03 20 38.02  22.2G 60454     F51  C~41ny      
2020 04  28.409073 12 22 10.010  -03 20 37.97  22.9G 60454     F51  C~41ny      

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    -0.18       0.00     0.03
     2   0.0003      0.00    -0.25       0.00     0.19
     3   0.0681      0.00     0.17       0.00     0.25
     4   0.0683      0.00    -0.45       0.00    -0.10
     5   0.1772      0.00     0.23       0.00     0.68
     6   0.1775      0.00    -0.22       0.00     0.10
     7   1.0570      0.00     0.40       0.00     0.43
     8   1.0571      0.00     0.18       0.00     0.19
     9   1.1301      0.00     0.06       0.00     0.08
    10   1.1305      0.00    -0.08       0.00    -0.03
    11   1.9991      0.00    -0.45       0.00    -0.41
    12   2.0017      0.00    -0.06       0.00    -0.51
    13   2.0019      0.00    -0.10       0.00    -0.41
    14   2.0094      0.00     0.54       0.00    -0.26
    15   2.0282      0.00     0.13       0.00    -0.13
    16   2.0283      0.00     0.03       0.00    -0.09
    17   2.1133      0.00     0.36       0.00    -0.01
    18   2.1185      0.00     0.18       0.00    -0.28
    19   2.1189      0.00     0.45       0.00    -0.25
    20   3.1453      0.00     0.02       0.00     0.48
    21   3.1455      0.00     0.31       0.00     0.49
    22   6.0697      0.00    -0.62       0.00     0.36
    23   6.0700      0.00    -0.62       0.00     0.22
    24  10.8587      0.00     0.10       0.00     0.02
    25  11.1537      0.00    -0.20       0.00    -0.02
    26  11.1537      0.00     0.07       0.00    -0.19
    27  11.1538      0.00    -0.06       0.00    -0.10
    28  11.1538      0.00    -0.12       0.00    -0.01
    29  12.1203      0.00    -0.24       0.00    -0.20
    30  12.1204      0.00     0.09       0.00    -0.45
    31  12.1204      0.00     0.01       0.00    -0.13
    32  12.1205      0.00     0.15       0.00    -0.12
    33  13.1635      0.00    -0.13       0.00    -0.03
    34  13.8569      0.00    -0.41       0.00    -0.26
    35  14.0644      0.00    -0.05       0.00    -0.23
    36  14.0645      0.00    -0.11       0.00    -0.20
    37  14.0645      0.00     0.04       0.00     0.07
    38  14.0645      0.00    -0.14       0.00     0.03
    39  14.1301      0.00     0.14       0.00    -0.10
    40  14.1301      0.00     0.04       0.00    -0.11
    41  14.9930      0.00    -0.17       0.00    -0.02
    42  15.0284      0.00    -0.02       0.00     0.26
    43  15.0529      0.00    -0.13       0.00    -0.17
    44  15.0556      0.00    -0.30       0.00    -0.02
    45  15.0613      0.00    -0.00       0.00    -0.32
    46  15.1239      0.00     0.20       0.00     0.28
    47  15.1240      0.00     0.02       0.00    -0.12
    48  15.1840      0.00    -0.10       0.00     0.17
    49  15.1841      0.00     0.06       0.00     0.04
    50  15.1841      0.00    -0.05       0.00    -0.14
    51  15.1841      0.00    -0.01       0.00    -0.14
    52  15.9512      0.00    -0.06       0.00    -0.07
    53  15.9513      0.00     0.21       0.00    -0.07
    54  15.9513      0.00    -0.17       0.00    -0.06
    55  16.0737      0.00     0.14       0.00    -0.05
    56  16.0737      0.00     0.05       0.00    -0.08
    57  16.0931      0.00    -0.05       0.00     0.02
    58  16.0931      0.00    -0.06       0.00     0.09
    59  16.0932      0.00     0.03       0.00    -0.34
    60  16.1532      0.00    -0.09       0.00    -0.04
    61  16.1532      0.00     0.05       0.00     0.12
    62  16.1532      0.00     0.19       0.00     0.15
    63  16.1533      0.00    -0.23       0.00     0.16
    64  16.1559      0.00     0.42       0.00    -0.26
    65  16.1560      0.00     0.07       0.00    -0.04
    66  16.1560      0.00     0.04       0.00     0.13
    67  16.1560      0.00     0.16       0.00    -0.23
    68  16.1780      0.00     0.25       0.00     0.20
    69  16.1781      0.00    -0.01       0.00    -0.07
    70  16.1781      0.00     0.03       0.00     0.02
    71  16.1781      0.00    -0.11       0.00    -0.08
    72  16.9752      0.00    -0.04       0.00     0.08
    73  17.0463      0.00    -0.19       0.00    -0.13
    74  17.0701      0.00     0.31       0.00     0.15
    75  17.0701      0.00     0.08       0.00     0.12
    76  17.2045      0.00     0.18       0.00     0.04
    77  18.1136      0.00     0.43       0.00     0.06
    78  18.1136      0.00    -0.04       0.00    -0.05
    79  18.1137      0.00     0.04       0.00     0.11
    80  18.1137      0.00    -0.08       0.00     0.01
    81  18.1760      0.00    -0.16       0.00     0.14
    82  18.1761      0.00    -0.79       0.00    -0.33
    83  18.9984      0.00     0.01       0.00    -0.15
    84  19.1567      0.00    -0.17       0.00     0.09
    85  19.1568      0.00     0.13       0.00     0.14
    86  19.1568      0.00     0.04       0.00    -0.13
    87  19.3288      0.00    -0.17       0.00     0.14
    88  19.3289      0.00    -0.16       0.00     0.20
    89  19.3289      0.00     0.13       0.00     0.31
    90  20.2024      0.00    -0.08       0.00     0.41
    91  20.2025      0.00     0.42       0.00     0.07
    92  20.2025      0.00     0.11       0.00     0.06
    93  20.2025      0.00     0.03       0.00     0.14
    94  20.2051      0.00    -0.08       0.00     0.02
    95  20.2051      0.00    -0.16       0.00     0.14
    96  20.2051      0.00     0.16       0.00     0.18
    97  20.2105      0.00     0.03       0.00    -0.14
    98  20.2105      0.00     0.16       0.00     0.17
    99  20.2105      0.00    -0.08       0.00    -0.05
   100  20.2106      0.00     0.14       0.00     0.09
   101  20.2215      0.00     0.08       0.00     0.03
   102  20.2216      0.00    -0.08       0.00    -0.13
   103  20.2272      0.00    -0.18       0.00     0.12
   104  20.2272      0.00     0.14       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.

60454    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.161    44.161    44.161
ecceobj         0.083     0.083     0.083
incobj          1.164     1.164     1.164
qmin           39.945    39.897    39.925
qmax           49.074    49.102    49.095
amean          44.381    44.381    44.382
amin           44.021    44.031    44.028
amax           44.760    44.768    44.755
emean           0.081     0.081     0.081
emin            0.064     0.064     0.064
emax            0.097     0.097     0.097
imean           2.815     2.815     2.815
imin            2.096     2.096     2.097
imax            3.489     3.491     3.489
excite_mean     0.095     0.095     0.095
fracstop        1.000     1.000     1.000
cjmean          3.095     3.095     3.095

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       176.8     176.9     176.8
kozaiamp        180.0     179.9     179.9