Orbit Fit and Astrometric record for 10DF106

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: 10DF106   
# Created Fri Dec  3 02:10:53 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     79 observations of     79
# Arc:   8.05y
# First observation: 2010/02/21
#  Last observation: 2018/03/10
# Chi-squared of fit:   135.58 DOF:    152 RMS:  0.23
# Min/Max residuals:    -0.95    0.62
# Exact a, adot, b, bdot, g, gdot:
  1.947422E-05  4.556205E-02 -7.749259E-06 -1.431709E-02  3.797826E-02 -5.833592E-03
# Covariance matrix:
  1.8572E-13 -6.2374E-14 -2.0872E-14  1.3563E-14 -3.5622E-14 -1.0052E-13
 -6.2374E-14  3.2605E-14  1.3911E-14 -9.1143E-15  2.1558E-14  6.7539E-14
 -2.0872E-14  1.3911E-14  1.2691E-13 -2.2975E-14  1.2027E-14  3.1918E-14
  1.3563E-14 -9.1143E-15 -2.2975E-14  6.2107E-15 -5.6093E-15 -2.1170E-14
 -3.5622E-14  2.1558E-14  1.2027E-14 -5.6093E-15  8.5481E-14  4.1853E-14
 -1.0052E-13  6.7539E-14  3.1918E-14 -2.1170E-14  4.1853E-14  1.5684E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   23.849296  144.600319   -0.137033    0.397947   -0.900183  2455248.952276
# Heliocentric elements and errors
Epoch:              2455248.5000  =  2010/02/21
Mean Anomaly:          319.24021 +/-     0.005
Argument of Peri:      179.48263 +/-     0.007
Long of Asc Node:       15.70359 +/-     0.000
Inclination:            28.73318 +/-     0.000
Eccentricity:         0.15194713 +/-    0.0000
Semi-Major Axis:     30.36884647 +/-    0.0010
Time of Perihelion: 2462169.5227 +/-       2.8
Perihelion:          25.75438742 +/-    0.0010
Aphelion:            34.98330551 +/-    0.0013
Period (y)              167.3596 +/-      0.01
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -20.50852946 +/-    0.0002
Ecliptic Y           14.40586911 +/-    0.0001
Ecliptic Z           10.64622606 +/-    0.0001
Ecliptic XDOT        -0.00192682 +/-    0.0000
Ecliptic YDOT        -0.00265265 +/-    0.0000
Ecliptic ZDOT        -0.00111409 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   27.23002332 +/-    0.0001
Geocenter to KBO     26.33095666 +/-    0.0002
# Hcoef:  8.07

The following table shows the complete astrometric record for 10DF106. 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 (10DF106) followed by the observatory code and reference code for the source of the astrometry.

2010 02  21.45151  10 25 43.023  +35 34 16.62  21.7G 10DF106   F51  C~3450      
2010 02  21.46094  10 25 42.928  +35 34 16.47  22.7G 10DF106   F51  C~3450      
2010 02  23.45921  10 25 25.501  +35 35 13.94  22.6G 10DF106   F51  C~3450      
2010 02  23.46823  10 25 25.412  +35 35 14.59  22.6G 10DF106   F51  C~3450      
2010 03  21.27655  10 21 50.105  +35 40 42.57  22.8G 10DF106   F51  C~3451      
2010 03  21.28565  10 21 50.098  +35 40 41.42  23.1G 10DF106   F51  C~3451      
2010 12  30.66826  10 41 33.579  +33 01 15.79  21.9G 10DF106   F51  C~3451      
2010 12  31.62816  10 41 30.191  +33 02 07.67  21.2G 10DF106   F51  C~3451      
2012 02  05.40209  10 47 34.716  +31 39 09.71  21.9G 10DF106   F51  C~3451      
2012 02  12.55300  10 46 39.242  +31 44 35.96  22.2G 10DF106   F51  C~3451      
2012 02  12.56489  10 46 39.146  +31 44 36.13  22.3G 10DF106   F51  C~3451      
2013 01  31.60709  10 57 22.274  +29 37 42.60  22.6G 10DF106   F51  C~3451      
2014 01  11.65817  11 08 12.676  +27 18 53.74  22.6G 10DF106   F51  C~3451      
2014 01  26.63312  11 06 57.127  +27 31 42.01  22.6G 10DF106   F51  C~3451      
2014 02  10.55472  11 05 16.976  +27 43 58.97  21.8G 10DF106   F51  C~3451      
2014 02  10.56702  11 05 16.883  +27 43 59.50  22.4G 10DF106   F51  C~3451      
2014 02  10.57884  11 05 16.793  +27 43 59.95  22.3G 10DF106   F51  C~3451      
2014 02  10.59069  11 05 16.699  +27 44 00.67  22.4G 10DF106   F51  C~3451      
2014 02  25.55760  11 03 20.307  +27 54 30.18  22.0G 10DF106   F51  C~3451      
2015 01  14.62522  11 16 42.889  +25 16 54.32  21.7G 10DF106   F51  C~3451      
2015 01  14.63473  11 16 42.868  +25 16 54.81  22.2G 10DF106   F51  C~3451      
2015 01  14.64426  11 16 42.839  +25 16 55.33  22.1G 10DF106   F51  C~3451      
2015 01  14.65367  11 16 42.783  +25 16 55.72  22.4G 10DF106   F51  C~3451      
2015 03  17.47465  11 09 36.557  +26 00 07.50  22.3G 10DF106   F51  C~3451      
2015 03  17.48506  11 09 36.469  +26 00 07.93  22.0G 10DF106   F51  C~3451      
2015 03  17.49556  11 09 36.379  +26 00 08.07  22.1G 10DF106   F51  C~3451      
2015 03  17.53698  11 09 36.055  +26 00 08.92  22.1G 10DF106   F51  C~3451      
2015 04  20.33681  11 05 44.363  +26 01 40.55  22.7G 10DF106   F51  C~3451      
2015 04  20.34962  11 05 44.274  +26 01 40.95  22.5G 10DF106   F51  C~3451      
2015 04  20.36257  11 05 44.200  +26 01 40.69  22.5G 10DF106   F51  C~3451      
2015 04  20.37552  11 05 44.143  +26 01 40.31  22.1G 10DF106   F51  C~3451      
2015 04  21.39789  11 05 38.777  +26 01 22.69  22.0G 10DF106   F51  C~3451      
2016 02  03.46424  11 23 33.899  +23 25 35.53  21.9G 10DF106   F51  C~3451      
2016 02  03.47719  11 23 33.843  +23 25 36.30  22.4G 10DF106   F51  C~3451      
2016 02  03.49026  11 23 33.761  +23 25 36.80  22.2G 10DF106   F51  C~3451      
2016 02  03.50361  11 23 33.670  +23 25 37.66  22.4G 10DF106   F51  C~3451      
2016 03  08.35065  11 19 25.722  +23 49 28.30  22.2G 10DF106   F51  C~3451      
2016 03  08.37429  11 19 25.539  +23 49 29.34  21.8G 10DF106   F51  C~3451      
2016 03  08.38610  11 19 25.388  +23 49 29.44  21.8G 10DF106   F51  C~3451      
2016 03  10.35510  11 19 09.708  +23 50 30.93  21.9G 10DF106   F51  C~3451      
2016 03  10.36798  11 19 09.577  +23 50 31.46  20.8G 10DF106   F51  C~3451      
2016 03  10.38098  11 19 09.503  +23 50 31.82  21.9G 10DF106   F51  C~3451      
2016 03  10.39406  11 19 09.409  +23 50 32.32  21.4G 10DF106   F51  C~3451      
2016 03  30.29986  11 16 35.567  +23 57 28.19  22.0G 10DF106   F51  C~3451      
2016 03  30.31346  11 16 35.465  +23 57 28.28  21.7G 10DF106   F51  C~3451      
2016 03  30.32704  11 16 35.370  +23 57 28.51  22.3G 10DF106   F51  C~3451      
2016 03  30.34060  11 16 35.270  +23 57 28.61  22.0G 10DF106   F51  C~3451      
2016 04  04.29481  11 15 59.942  +23 58 08.09  22.1G 10DF106   F51  C~3451      
2016 04  04.30748  11 15 59.827  +23 58 07.37  22.5G 10DF106   F51  C~3451      
2016 04  04.32018  11 15 59.783  +23 58 08.38  22.7G 10DF106   F51  C~3451      
2016 04  04.33296  11 15 59.691  +23 58 08.57  22.1G 10DF106   F51  C~3451      
2016 05  19.36064  11 12 36.239  +23 43 00.96  21.7G 10DF106   F51  C~3451      
2017 02  01.58812  11 32 03.155  +21 14 34.09  21.5G 10DF106   F51  C~3451      
2017 02  01.60098  11 32 03.038  +21 14 35.34  21.7G 10DF106   F51  C~3451      
2017 02  01.61387  11 32 02.994  +21 14 36.03  22.1G 10DF106   F51  C~3451      
2017 02  01.64278  11 32 02.821  +21 14 37.08  22.4G 10DF106   F51  C~3451      
2017 02  22.37752  11 29 44.817  +21 30 24.24  21.8G 10DF106   F51  C~3451      
2017 02  22.39024  11 29 44.772  +21 30 24.54  21.8G 10DF106   F51  C~3451      
2017 02  22.40290  11 29 44.671  +21 30 25.08  21.5G 10DF106   F51  C~3451      
2017 02  22.41558  11 29 44.585  +21 30 25.59  21.6G 10DF106   F51  C~3451      
2017 03  28.30709  11 25 22.520  +21 48 03.58  22.1G 10DF106   F51  C~3451      
2017 03  28.32032  11 25 22.416  +21 48 03.77  22.2G 10DF106   F51  C~3451      
2017 03  28.33354  11 25 22.319  +21 48 04.02  22.4G 10DF106   F51  C~3451      
2017 03  28.34693  11 25 22.219  +21 48 04.35  22.0G 10DF106   F51  C~3451      
2017 04  25.39075  11 22 22.021  +21 48 51.54  21.9G 10DF106   F51  C~3451      
2017 04  25.40411  11 22 21.941  +21 48 51.62  22.2G 10DF106   F51  C~3451      
2017 12  31.58931  11 42 01.430  +18 40 52.00  22.7G 10DF106   F51  C~3451      
2018 02  10.43059  11 39 24.094  +19 08 41.66  22.1G 10DF106   F51  C~3451      
2018 02  10.44341  11 39 24.024  +19 08 42.26  21.9G 10DF106   F51  C~3451      
2018 02  10.45624  11 39 23.917  +19 08 42.41  22.1G 10DF106   F51  C~3451      
2018 02  10.46904  11 39 23.839  +19 08 43.09  22.1G 10DF106   F51  C~3451      
2018 03  07.33294  11 36 25.810  +19 26 11.40  22.4G 10DF106   F51  C~3451      
2018 03  07.34460  11 36 25.729  +19 26 11.76  22.3G 10DF106   F51  C~3451      
2018 03  07.35622  11 36 25.638  +19 26 12.25  22.5G 10DF106   F51  C~3451      
2018 03  07.36787  11 36 25.548  +19 26 12.72  22.4G 10DF106   F51  C~3451      
2018 03  10.35107  11 36 02.406  +19 27 59.38  22.3G 10DF106   F51  C~3451      
2018 03  10.36289  11 36 02.319  +19 27 59.37  21.5G 10DF106   F51  C~3451      
2018 03  10.37471  11 36 02.228  +19 28 00.35  21.9G 10DF106   F51  C~3451      
2018 03  10.38654  11 36 02.120  +19 28 00.32  22.2G 10DF106   F51  C~3451      

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     0.06       0.00     0.38
     2   0.0000      0.00    -0.11       0.00    -0.05
     3   0.0055      0.00     0.01       0.00    -0.06
     4   0.0055      0.00    -0.12       0.00     0.35
     5   0.0762      0.00    -0.50       0.00     0.41
     6   0.0762      0.00     0.45       0.00    -0.71
     7   0.8548      0.00     0.62       0.00    -0.01
     8   0.8574      0.00     0.43       0.00    -0.12
     9   1.9547      0.00    -0.13       0.00     0.22
    10   1.9743      0.00    -0.08       0.00     0.03
    11   1.9743      0.00    -0.07       0.00    -0.31
    12   2.9436      0.00     0.08       0.00     0.27
    13   3.8883      0.00    -0.50       0.00    -0.26
    14   3.9293      0.00    -0.03       0.00    -0.07
    15   3.9702      0.00     0.06       0.00     0.11
    16   3.9702      0.00     0.04       0.00     0.08
    17   3.9702      0.00     0.02       0.00    -0.02
    18   3.9703      0.00    -0.06       0.00     0.15
    19   4.0112      0.00    -0.18       0.00    -0.54
    20   4.8958      0.00    -0.34       0.00    -0.03
    21   4.8958      0.00    -0.06       0.00    -0.00
    22   4.8958      0.00     0.11       0.00     0.06
    23   4.8958      0.00    -0.14       0.00    -0.01
    24   5.0651      0.00     0.13       0.00    -0.04
    25   5.0651      0.00     0.06       0.00     0.16
    26   5.0651      0.00    -0.02       0.00     0.08
    27   5.0653      0.00     0.12       0.00     0.06
    28   5.1578      0.00     0.17       0.00    -0.43
    29   5.1578      0.00    -0.12       0.00     0.19
    30   5.1579      0.00    -0.17       0.00     0.15
    31   5.1579      0.00     0.03       0.00    -0.01
    32   5.1607      0.00    -0.07       0.00     0.22
    33   5.9494      0.00    -0.23       0.00    -0.11
    34   5.9494      0.00     0.14       0.00     0.03
    35   5.9495      0.00     0.14       0.00    -0.11
    36   5.9495      0.00     0.03       0.00     0.10
    37   6.0422      0.00     0.41       0.00    -0.09
    38   6.0422      0.00     0.53       0.00     0.18
    39   6.0423      0.00    -0.29       0.00    -0.10
    40   6.0476      0.00    -0.08       0.00    -0.01
    41   6.0477      0.00    -0.48       0.00     0.12
    42   6.0477      0.00    -0.01       0.00     0.08
    43   6.0478      0.00     0.17       0.00     0.18
    44   6.1023      0.00    -0.01       0.00     0.04
    45   6.1023      0.00    -0.03       0.00    -0.02
    46   6.1023      0.00     0.06       0.00     0.06
    47   6.1024      0.00     0.07       0.00     0.01
    48   6.1159      0.00    -0.29       0.00    -0.16
    49   6.1160      0.00    -0.67       0.00    -0.95
    50   6.1160      0.00     0.02       0.00    -0.01
    51   6.1160      0.00    -0.00       0.00     0.11
    52   6.2393      0.00     0.54       0.00     0.22
    53   6.9463      0.00     0.04       0.00    -0.47
    54   6.9463      0.00    -0.58       0.00     0.17
    55   6.9464      0.00    -0.11       0.00     0.26
    56   6.9465      0.00    -0.18       0.00    -0.04
    57   7.0032      0.00    -0.66       0.00     0.15
    58   7.0033      0.00     0.11       0.00    -0.10
    59   7.0033      0.00     0.02       0.00    -0.10
    60   7.0033      0.00     0.17       0.00    -0.14
    61   7.0961      0.00     0.05       0.00     0.02
    62   7.0962      0.00     0.00       0.00    -0.02
    63   7.0962      0.00     0.05       0.00     0.00
    64   7.0962      0.00     0.08       0.00     0.11
    65   7.1730      0.00     0.06       0.00    -0.14
    66   7.1730      0.00    -0.10       0.00     0.13
    67   7.8580      0.00    -0.00       0.00    -0.01
    68   7.9698      0.00     0.22       0.00     0.21
    69   7.9699      0.00     0.41       0.00     0.23
    70   7.9699      0.00     0.04       0.00    -0.21
    71   7.9699      0.00     0.10       0.00    -0.12
    72   8.0380      0.00    -0.08       0.00     0.07
    73   8.0380      0.00     0.07       0.00    -0.00
    74   8.0381      0.00     0.08       0.00     0.06
    75   8.0381      0.00     0.10       0.00     0.10
    76   8.0463      0.00    -0.02       0.00     0.19
    77   8.0463      0.00     0.07       0.00    -0.23
    78   8.0463      0.00     0.11       0.00     0.33
    79   8.0464      0.00    -0.11       0.00    -0.11

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.

10DF106    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        30.510    30.509    30.510
ecceobj         0.152     0.152     0.152
incobj         28.718    28.718    28.718
qmin           18.093    19.209    19.864
qmax           43.998    42.131    41.618
amean          30.236    30.283    30.204
amin           29.464    29.555    29.154
amax           31.122    30.987    31.111
emean           0.215     0.170     0.169
emin            0.121     0.049     0.017
emax            0.414     0.360     0.344
imean          28.640    28.670    28.543
imin           22.876    24.281    23.963
imax           31.511    30.459    31.780
excite_mean     0.530     0.515     0.517
fracstop        0.531     0.153     0.238
cjmean          2.705     2.713     2.715

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       164.7     234.5     187.0
kozaiamp        180.0     108.9     179.8