Orbit Fit and Astrometric record for 679338

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: 679338    
# Created Sun Dec 22 02:07:53 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     85 observations of     85
# Arc:  10.40y
# First observation: 2013/09/14
#  Last observation: 2024/02/09
# Chi-squared of fit:    82.67 DOF:    164 RMS:  0.17
# Min/Max residuals:    -0.49    0.75
# Exact a, adot, b, bdot, g, gdot:
  2.564470E-05  7.406112E-02  5.014527E-06  1.210200E-02  4.830555E-02  3.740385E-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
    7.278911  104.515710    0.927140   -0.049546    0.388504  2456550.104856
# Heliocentric elements and errors
Epoch:              2456550.5000  =  2013/09/15
Mean Anomaly:            0.87038 +/-     0.000
Argument of Peri:       36.48755 +/-     0.000
Long of Asc Node:       64.52262 +/-     0.000
Inclination:            12.09790 +/-     0.000
Eccentricity:         0.25006198 +/-    0.0000
Semi-Major Axis:     27.11600364 +/-    0.0000
Time of Perihelion: 2456425.8065 +/-       0.0
Perihelion:          20.33532209 +/-    0.0000
Aphelion:            33.89668519 +/-    0.0000
Period (y)              141.2039 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           -4.15205605 +/-    0.0000
Ecliptic Y           19.73479007 +/-    0.0000
Ecliptic Z            2.62298177 +/-    0.0000
Ecliptic XDOT        -0.00410073 +/-    0.0000
Ecliptic YDOT        -0.00093387 +/-    0.0000
Ecliptic ZDOT         0.00070739 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   20.33670166 +/-    0.0000
Geocenter to KBO     20.70154780 +/-    0.0000
# Hcoef:  9.43

The following table shows the complete astrometric record for 679338. 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 (679338) followed by the observatory code and reference code for the source of the astrometry.

2013 09  14.604078 07 06 39.218  +29 52 56.52  22.4G 679338    F51  C~2sdL      
2013 09  14.609670 07 06 39.291  +29 52 56.83  22.7G 679338    F51  C~2sdL      
2013 09  14.615293 07 06 39.326  +29 52 56.71  22.3G 679338    F51  C~2sdL      
2013 09  14.620899 07 06 39.375  +29 52 56.92  22.1G 679338    F51  C~2sdL      
2013 11  25.533406 07 07 18.674  +30 25 58.93  22.4G 679338    F51  C~2sdL      
2013 11  25.546275 07 07 18.564  +30 25 59.58  22.8G 679338    F51  C~2sdL      
2013 11  27.606615 07 07 03.608  +30 27 10.01  23.6G 679338    F51  C~2sdL      
2013 11  28.549352 07 06 56.598  +30 27 42.52  22.8G 679338    F51  C~2sdL      
2013 12  04.429716 07 06 09.332  +30 31 00.70  23.2G 679338    F51  C~2sdL      
2013 12  04.443666 07 06 09.229  +30 31 01.30  22.7G 679338    F51  C~2sdL      
2013 12  04.457661 07 06 09.094  +30 31 01.75  22.7G 679338    F51  C~2sdL      
2013 12  04.471646 07 06 08.996  +30 31 02.25  22.9G 679338    F51  C~2sdL      
2013 12  26.374313 07 02 35.763  +30 42 05.90  22.1G 679338    F51  C~2sdL      
2013 12  26.389732 07 02 35.603  +30 42 06.35  22.2G 679338    F51  C~2sdL      
2013 12  26.405170 07 02 35.423  +30 42 06.57  22.0G 679338    F51  C~2sdL      
2015 01  18.292597 07 19 57.459  +31 01 03.34  22.4G 679338    F51  C~2sdL      
2015 01  18.319164 07 19 57.184  +31 01 03.71  22.7G 679338    F51  C~2sdL      
2015 01  18.332524 07 19 57.038  +31 01 04.12  22.6G 679338    F51  C~2sdL      
2016 01  02.569558 07 44 09.456  +30 50 32.27  22.8G 679338    F51  C~2sdL      
2016 01  07.346094 07 43 19.516  +30 53 20.14  23.3G 679338    F51  C~2sdL      
2016 01  07.356457 07 43 19.423  +30 53 20.82  22.4G 679338    F51  C~2sdL      
2016 01  07.366801 07 43 19.314  +30 53 21.21  22.4G 679338    F51  C~2sdL      
2016 01  07.377143 07 43 19.192  +30 53 21.37  22.7G 679338    F51  C~2sdL      
2017 01  06.400837 08 04 29.504  +30 37 13.86  21.9G 679338    F51  C~2sdL      
2017 01  06.443037 08 04 29.042  +30 37 15.62  22.8G 679338    F51  C~2sdL      
2017 01  06.460291 08 04 28.884  +30 37 16.72  22.8G 679338    F51  C~2sdL      
2017 01  06.519783 08 04 28.280  +30 37 18.70  22.6G 679338    F51  C~2sdL      
2017 01  06.546014 08 04 28.006  +30 37 19.91  21.6G 679338    F51  C~2sdL      
2017 01  06.576292 08 04 27.682  +30 37 21.01  22.5G 679338    F51  C~2sdL      
2017 01  06.604641 08 04 27.393  +30 37 22.14  22.5G 679338    F51  C~2sdL      
2017 01  08.344018 08 04 09.575  +30 38 31.42  21.8G 679338    F51  C~2sdL      
2017 01  08.435984 08 04 08.676  +30 38 34.92  22.7G 679338    F51  C~2sdL      
2017 01  08.533464 08 04 07.621  +30 38 38.68  22.1G 679338    F51  C~2sdL      
2017 01  08.597479 08 04 06.908  +30 38 41.29  21.3G 679338    F51  C~2sdL      
2017 01  08.641467 08 04 06.459  +30 38 42.57  22.1G 679338    F51  C~2sdL      
2017 01  09.345690 08 03 59.213  +30 39 10.25  22.3G 679338    F51  C~2sdL      
2017 01  09.434859 08 03 58.307  +30 39 13.93  21.7G 679338    F51  C~2sdL      
2017 01  09.589535 08 03 56.681  +30 39 19.28  20.9G 679338    F51  C~2sdL      
2017 01  09.607846 08 03 56.489  +30 39 20.28  22.2G 679338    F51  C~2sdL      
2017 01  10.372472 08 03 48.581  +30 39 49.80  22.2G 679338    F51  C~2sdL      
2017 01  10.395781 08 03 48.334  +30 39 50.70  21.9G 679338    F51  C~2sdL      
2017 01  10.434791 08 03 47.928  +30 39 52.34  22.1G 679338    F51  C~2sdL      
2017 01  10.452579 08 03 47.709  +30 39 52.84  22.4G 679338    F51  C~2sdL      
2017 01  10.535969 08 03 46.855  +30 39 56.20  22.1G 679338    F51  C~2sdL      
2017 01  10.562234 08 03 46.581  +30 39 56.61  20.4G 679338    F51  C~2sdL      
2017 01  10.646303 08 03 45.675  +30 40 00.05  23.0G 679338    F51  C~2sdL      
2017 01  18.337282 08 02 24.855  +30 44 36.71  21.5G 679338    F51  C~2sdL      
2017 01  18.465181 08 02 23.474  +30 44 40.71  21.4G 679338    F51  C~2sdL      
2017 01  18.486849 08 02 23.245  +30 44 41.93  22.2G 679338    F51  C~2sdL      
2017 01  29.341447 08 00 29.361  +30 50 06.51  22.7G 679338    F51  C~2sdL      
2017 01  29.353596 08 00 29.232  +30 50 06.83  22.2G 679338    F51  C~2sdL      
2017 01  29.365646 08 00 29.126  +30 50 07.16  22.8G 679338    F51  C~2sdL      
2017 11  21.533022 08 30 15.453  +29 32 51.53  22.9G 679338    F51  C~2sdL      
2017 11  21.544488 08 30 15.435  +29 32 52.12  22.9G 679338    F51  C~2sdL      
2017 11  21.555945 08 30 15.406  +29 32 52.52  22.6G 679338    F51  C~2sdL      
2017 11  21.567440 08 30 15.388  +29 32 53.06  22.9G 679338    F51  C~2sdL      
2018 01  11.554693 08 24 26.724  +30 12 39.38  22.6G 679338    F51  C~2sdL      
2018 01  11.566295 08 24 26.594  +30 12 40.21  22.0G 679338    F51  C~2sdL      
2018 01  13.398902 08 24 08.144  +30 13 58.94  22.6G 679338    F51  C~2sdL      
2018 01  13.410582 08 24 08.006  +30 13 59.58  22.3G 679338    F51  C~2sdL      
2018 01  13.422334 08 24 07.881  +30 13 59.94  22.4G 679338    F51  C~2sdL      
2018 01  13.434175 08 24 07.761  +30 14 00.29  22.4G 679338    F51  C~2sdL      
2018 02  13.273632 08 18 54.094  +30 30 41.38  22.6G 679338    F51  C~2sdL      
2018 02  13.296473 08 18 53.903  +30 30 42.05  23.5G 679338    F51  C~2sdL      
2018 12  14.61455  08 48 28.859  +29 09 29.43  23.1G 679338    F51  C~2sJf      
2018 12  14.62615  08 48 28.777  +29 09 29.90  22.2G 679338    F51  C~2sJf      
2018 12  14.63781  08 48 28.688  +29 09 30.60  22.1G 679338    F51  C~2sJf      
2018 12  14.64946  08 48 28.618  +29 09 31.27  22.1G 679338    F51  C~2sJf      
2018 12  31.42620  08 46 28.222  +29 23 54.37  22.1G 679338    F51  C~2sJf      
2018 12  31.43858  08 46 28.131  +29 23 55.07  22.4G 679338    F51  C~2sJf      
2018 12  31.45099  08 46 27.994  +29 23 55.63  22.1G 679338    F51  C~2sJf      
2018 12  31.46351  08 46 27.881  +29 23 56.34  22.3G 679338    F51  C~2sJf      
2019 01  08.53073  08 45 16.346  +29 30 44.43  22.4w 679338    F51  C~2sJf      
2019 01  08.54278  08 45 16.231  +29 30 45.07  23.0w 679338    F51  C~2sJf      
2019 01  08.55483  08 45 16.133  +29 30 45.70  22.6w 679338    F51  C~2sJf      
2019 01  08.56695  08 45 16.016  +29 30 46.12  22.9w 679338    F51  C~2sJf      
2019 01  09.508957 08 45 07.226  +29 31 32.77  22.5G 679338    568  C~2sJf      
2019 01  09.510157 08 45 07.213  +29 31 32.83  22.4G 679338    568  C~2sJf      
2019 01  09.511343 08 45 07.203  +29 31 32.91  22.5G 679338    568  C~2sJf      
2020 12  23.49408  09 25 46.430  +27 27 07.75  22.5w 679338    F51  C~4OHE      
2020 12  23.50534  09 25 46.364  +27 27 08.44  22.7w 679338    F51  C~4OHE      
2020 12  23.52743  09 25 46.222  +27 27 09.82  22.3w 679338    F51  C~4OHE      
2024 02  09.396880 10 12 47.792  +24 29 45.81  22.4w 679338    F52  C~7n6c      
2024 02  09.409799 10 12 47.666  +24 29 46.90  22.2w 679338    F52  C~7n6c      
2024 02  09.422730 10 12 47.557  +24 29 47.40  22.4w 679338    F52  C~7n6c      

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    -0.36       0.00    -0.18
     2   0.0000      0.00     0.05       0.00     0.04
     3   0.0000      0.00    -0.11       0.00    -0.17
     4   0.0000      0.00    -0.06       0.00    -0.04
     5   0.1969      0.00     0.31       0.00     0.05
     6   0.1970      0.00     0.06       0.00     0.26
     7   0.2026      0.00    -0.49       0.00    -0.01
     8   0.2052      0.00     0.12       0.00     0.25
     9   0.2213      0.00    -0.12       0.00    -0.12
    10   0.2213      0.00     0.15       0.00     0.01
    11   0.2214      0.00    -0.05       0.00    -0.02
    12   0.2214      0.00     0.30       0.00     0.01
    13   0.2814      0.00     0.04       0.00     0.02
    14   0.2814      0.00     0.14       0.00     0.06
    15   0.2815      0.00    -0.05       0.00    -0.14
    16   1.3434      0.00    -0.09       0.00     0.11
    17   1.3435      0.00     0.08       0.00    -0.10
    18   1.3435      0.00     0.06       0.00     0.02
    19   2.2997      0.00     0.02       0.00    -0.07
    20   2.3128      0.00    -0.07       0.00    -0.20
    21   2.3128      0.00     0.20       0.00     0.12
    22   2.3128      0.00     0.24       0.00     0.15
    23   2.3129      0.00     0.07       0.00    -0.05
    24   3.3122      0.00    -0.05       0.00    -0.21
    25   3.3124      0.00    -0.40       0.00    -0.16
    26   3.3124      0.00    -0.07       0.00     0.24
    27   3.3126      0.00     0.15       0.00    -0.16
    28   3.3126      0.00     0.14       0.00     0.01
    29   3.3127      0.00    -0.01       0.00    -0.08
    30   3.3128      0.00     0.07       0.00    -0.06
    31   3.3176      0.00    -0.23       0.00     0.26
    32   3.3178      0.00     0.75       0.00     0.10
    33   3.3181      0.00     0.30       0.00     0.05
    34   3.3183      0.00    -0.33       0.00     0.21
    35   3.3184      0.00    -0.17       0.00    -0.19
    36   3.3203      0.00    -0.45       0.00     0.04
    37   3.3205      0.00     0.05       0.00     0.21
    38   3.3210      0.00     0.14       0.00    -0.36
    39   3.3210      0.00     0.15       0.00    -0.05
    40   3.3231      0.00    -0.06       0.00     0.05
    41   3.3232      0.00    -0.07       0.00     0.05
    42   3.3233      0.00     0.04       0.00     0.18
    43   3.3233      0.00    -0.41       0.00    -0.00
    44   3.3236      0.00     0.04       0.00     0.20
    45   3.3236      0.00     0.10       0.00    -0.38
    46   3.3239      0.00    -0.21       0.00    -0.05
    47   3.3449      0.00    -0.27       0.00     0.05
    48   3.3453      0.00    -0.32       0.00    -0.30
    49   3.3453      0.00    -0.25       0.00     0.20
    50   3.3751      0.00    -0.02       0.00    -0.05
    51   3.3751      0.00    -0.04       0.00    -0.05
    52   3.3751      0.00     0.27       0.00    -0.04
    53   4.1860      0.00    -0.20       0.00    -0.03
    54   4.1860      0.00    -0.05       0.00     0.08
    55   4.1860      0.00    -0.06       0.00    -0.01
    56   4.1861      0.00     0.09       0.00     0.05
    57   4.3257      0.00    -0.11       0.00    -0.10
    58   4.3257      0.00    -0.28       0.00     0.24
    59   4.3307      0.00     0.41       0.00     0.06
    60   4.3308      0.00     0.15       0.00     0.19
    61   4.3308      0.00     0.10       0.00     0.05
    62   4.3308      0.00     0.14       0.00    -0.11
    63   4.4152      0.00    -0.38       0.00    -0.12
    64   4.4153      0.00     0.04       0.00     0.07
    65   5.2485      0.00     0.36       0.00    -0.02
    66   5.2485      0.00     0.18       0.00    -0.13
    67   5.2486      0.00    -0.11       0.00    -0.01
    68   5.2486      0.00    -0.11       0.00     0.07
    69   5.2945      0.00     0.14       0.00     0.00
    70   5.2946      0.00     0.37       0.00     0.06
    71   5.2946      0.00    -0.09       0.00    -0.02
    72   5.2946      0.00    -0.17       0.00     0.04
    73   5.3167      0.00    -0.05       0.00    -0.02
    74   5.3167      0.00    -0.06       0.00     0.03
    75   5.3168      0.00     0.19       0.00     0.06
    76   5.3168      0.00     0.15       0.00    -0.11
    77   5.3194      0.00     0.02       0.00    -0.03
    78   5.3194      0.00    -0.00       0.00    -0.02
    79   5.3194      0.00     0.02       0.00    -0.00
    80   7.2742      0.00     0.09       0.00    -0.14
    81   7.2742      0.00     0.08       0.00    -0.07
    82   7.2743      0.00    -0.12       0.00     0.10
    83  10.4033      0.00     0.01       0.00    -0.18
    84  10.4033      0.00    -0.12       0.00     0.21
    85  10.4033      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.

679338    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        27.147    27.147    27.147
ecceobj         0.249     0.249     0.249
incobj         12.087    12.087    12.087
qmin           19.036    19.401    18.672
qmax           34.704    34.671    34.613
amean          26.744    26.966    26.736
amin           25.958    26.452    25.406
amax           27.933    27.422    27.600
emean           0.220     0.258     0.241
emin            0.119     0.236     0.207
emax            0.277     0.276     0.285
imean          12.085     9.807    11.985
imin            9.357     8.684     8.306
imax           14.688    11.018    13.866
excite_mean     0.308     0.310     0.320
fracstop        0.019     0.007     0.023
cjmean          2.919     2.915     2.913

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       130.5      75.7     153.9
kozaiamp         87.5      43.6      99.4