Orbit Fit and Astrometric record for 12TF324

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: 12TF324   
# Created Sun Sep 25 01:14:39 2022
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     69 observations of     69
# Arc:  13.06y
# First observation: 2008/11/01
#  Last observation: 2021/11/23
# Chi-squared of fit:    43.83 DOF:    132 RMS:  0.14
# Min/Max residuals:    -0.45    0.55
# Exact a, adot, b, bdot, g, gdot:
  1.678147E-05  2.696176E-02  1.809495E-06  2.206756E-03  2.594072E-02 -2.010238E-03
# Covariance matrix:
  2.3331E-13 -6.0435E-14  8.6223E-15 -3.8321E-15 -4.3728E-14 -1.2425E-13
 -6.0435E-14  2.0207E-14 -3.5200E-15  1.4486E-15  8.6521E-15  4.6505E-14
  8.6223E-15 -3.5200E-15  9.3619E-14 -1.1287E-14  1.9355E-16 -8.8129E-15
 -3.8321E-15  1.4486E-15 -1.1287E-14  1.7879E-15  6.0131E-16  3.6342E-15
 -4.3728E-14  8.6521E-15  1.9355E-16  6.0131E-16  5.3596E-14  2.2258E-14
 -1.2425E-13  4.6505E-14 -8.8129E-15  3.6342E-15  2.2258E-14  1.1670E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    6.563386   12.141635   -0.455813    0.101012   -0.877598  2454771.843109
# Heliocentric elements and errors
Epoch:              2454772.5000  =  2008/11/02
Mean Anomaly:          330.34955 +/-     0.008
Argument of Peri:       91.42623 +/-     0.010
Long of Asc Node:      318.39250 +/-     0.001
Inclination:             7.87332 +/-     0.000
Eccentricity:         0.11067143 +/-    0.0000
Semi-Major Axis:     43.45883885 +/-    0.0017
Time of Perihelion: 2463391.2510 +/-       6.2
Perihelion:          38.64918702 +/-    0.0019
Aphelion:            48.26849069 +/-    0.0022
Period (y)              286.5005 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           38.20949137 +/-    0.0003
Ecliptic Y            8.68229513 +/-    0.0001
Ecliptic Z            4.40635645 +/-    0.0000
Ecliptic XDOT        -0.00082468 +/-    0.0000
Ecliptic YDOT         0.00273447 +/-    0.0000
Ecliptic ZDOT         0.00020701 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   39.43052751 +/-    0.0003
Geocenter to KBO     38.54950783 +/-    0.0003
# Hcoef:  6.54

The following table shows the complete astrometric record for 12TF324. 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 (12TF324) followed by the observatory code and reference code for the source of the astrometry.

2008 11  01.342355 00 34 15.11   +10 50 07.0   22.0V 12TF324   645  C~2VVP      
2008 11  01.343184 00 34 15.12   +10 50 07.0   22.4V 12TF324   645  C~2VVP      
2008 11  01.345672 00 34 15.12   +10 50 07.0   24.1V 12TF324   645  C~2VVP      
2010 06  15.57189  00 51 06.454  +12 34 46.76  22.7G 12TF324   F51  C~2rXu      
2010 06  16.57291  00 51 09.217  +12 35 15.45  22.5G 12TF324   F51  C~2rXu      
2010 06  19.55367  00 51 16.909  +12 36 37.18  22.2G 12TF324   F51  C~2rXu      
2010 10  14.35668  00 46 55.630  +12 26 29.16  22.8G 12TF324   F51  C~2rXu      
2010 10  14.36848  00 46 55.568  +12 26 29.05  22.3G 12TF324   F51  C~2rXu      
2010 11  01.31455  00 45 33.082  +12 17 19.51  22.7G 12TF324   F51  C~2rXu      
2010 11  01.31678  00 45 33.057  +12 17 19.66  22.5G 12TF324   F51  C~2rXu      
2010 11  01.33167  00 45 32.999  +12 17 19.06  22.4G 12TF324   F51  C~2rXu      
2010 11  01.33307  00 45 32.991  +12 17 19.07  22.4G 12TF324   F51  C~2rXu      
2011 07  01.58309  00 57 14.925  +13 22 46.42  23.0w 12TF324   F51  C~1w3s      
2011 07  01.58810  00 57 14.923  +13 22 46.55  23.2w 12TF324   F51  C~1w3s      
2011 07  01.59940  00 57 14.927  +13 22 46.53  22.8w 12TF324   F51  C~1w3s      
2012 10  09.35059  00 58 48.617  +13 54 32.68  22.4w 12TF324   F51  C~1w3s      
2012 10  09.36472  00 58 48.531  +13 54 32.53  22.4w 12TF324   F51  C~1w3s      
2012 10  09.37895  00 58 48.470  +13 54 31.79  22.5w 12TF324   F51  C~1w3s      
2012 11  03.41308  00 56 49.889  +13 41 54.78  22.0i 12TF324   F51  C~1w3s      
2012 11  03.42509  00 56 49.834  +13 41 54.22  21.6i 12TF324   F51  C~1w3s      
2013 09  15.54707  01 06 32.965  +14 46 40.16  22.4w 12TF324   F51  C~1w3s      
2013 09  15.56080  01 06 32.909  +14 46 39.99  22.5w 12TF324   F51  C~1w3s      
2013 09  15.57461  01 06 32.855  +14 46 39.63  22.2w 12TF324   F51  C~1w3s      
2013 09  15.58845  01 06 32.790  +14 46 39.50  22.4w 12TF324   F51  C~1w3s      
2013 11  26.22632  01 01 12.404  +14 13 27.08  21.6i 12TF324   F51  C~1w3s      
2013 11  26.23900  01 01 12.380  +14 13 26.86  22.0i 12TF324   F51  C~1w3s      
2014 09  29.52050  01 11 21.882  +15 23 15.24  22.6G 12TF324   F51  C~2rXu      
2014 09  29.53194  01 11 21.840  +15 23 14.91  22.5G 12TF324   F51  C~2rXu      
2014 09  29.54337  01 11 21.779  +15 23 14.86  22.1G 12TF324   F51  C~2rXu      
2014 09  29.55482  01 11 21.708  +15 23 14.51  22.2G 12TF324   F51  C~2rXu      
2014 11  28.40753  01 06 54.824  +14 54 27.04  22.2G 12TF324   F51  C~2rXu      
2014 12  16.30231  01 06 14.531  +14 47 39.35  23.1G 12TF324   F51  C~2rXu      
2015 07  25.56070  01 20 26.573  +16 12 04.04  22.8G 12TF324   F51  C~2rXv      
2015 07  25.57432  01 20 26.568  +16 12 04.31  22.6G 12TF324   F51  C~2rXv      
2015 07  25.58799  01 20 26.566  +16 12 04.40  22.6G 12TF324   F51  C~2rXv      
2015 07  25.60180  01 20 26.554  +16 12 04.58  22.1G 12TF324   F51  C~2rXv      
2015 12  03.20954  01 12 32.494  +15 33 52.14  22.7G 12TF324   F51  C~2rXv      
2015 12  03.22207  01 12 32.458  +15 33 51.87  22.9G 12TF324   F51  C~2rXv      
2015 12  03.23459  01 12 32.413  +15 33 51.54  22.6G 12TF324   F51  C~2rXv      
2015 12  03.24711  01 12 32.382  +15 33 51.01  22.9G 12TF324   F51  C~2rXv      
2015 12  31.26256  01 11 50.364  +15 24 54.77  22.7G 12TF324   F51  C~2rXv      
2015 12  31.27381  01 11 50.358  +15 24 54.49  22.4G 12TF324   F51  C~2rXv      
2015 12  31.28499  01 11 50.362  +15 24 54.43  22.1G 12TF324   F51  C~2rXv      
2015 12  31.29619  01 11 50.371  +15 24 54.38  21.8G 12TF324   F51  C~2rXv      
2016 08  10.51456  01 26 05.945  +16 53 55.18  22.8G 12TF324   F51  C~2rXv      
2016 08  10.52746  01 26 05.927  +16 53 55.06  22.3G 12TF324   F51  C~2rXv      
2016 08  10.54038  01 26 05.898  +16 53 55.13  22.1G 12TF324   F51  C~2rXv      
2016 08  10.55337  01 26 05.875  +16 53 55.12  22.3G 12TF324   F51  C~2rXv      
2016 10  25.45364  01 21 03.878  +16 33 16.46  22.3G 12TF324   F51  C~2rXv      
2016 10  25.46636  01 21 03.811  +16 33 16.06  22.4G 12TF324   F51  C~2rXv      
2016 10  25.47892  01 21 03.757  +16 33 15.53  22.3G 12TF324   F51  C~2rXv      
2016 10  25.49146  01 21 03.683  +16 33 15.32  22.4G 12TF324   F51  C~2rXv      
2017 09  21.57053  01 29 53.524  +17 27 54.17  22.4G 12TF324   F51  C~2rXv      
2017 09  21.58443  01 29 53.449  +17 27 53.91  22.7G 12TF324   F51  C~2rXv      
2017 09  21.59830  01 29 53.383  +17 27 53.72  22.1G 12TF324   F51  C~2rXv      
2017 09  21.61218  01 29 53.331  +17 27 53.38  22.4G 12TF324   F51  C~2rXv      
2017 09  23.36290  01 29 45.39   +17 27 20.2   22.0R 12TF324   G37  C~2LSE      
2017 09  23.44969  01 29 45.00   +17 27 18.8         12TF324   G37  C~2LSE      
2020 08  23.50421  01 49 55.172  +19 27 47.78  22.1w 12TF324   F51  C~43zp      
2020 08  23.51655  01 49 55.151  +19 27 47.88  22.3w 12TF324   F51  C~43zp      
2020 08  23.52915  01 49 55.110  +19 27 48.00  22.2w 12TF324   F51  C~43zp      
2020 08  23.54207  01 49 55.069  +19 27 48.05  22.3w 12TF324   F51  C~43zp      
2020 09  17.42194  01 48 35.770  +19 25 00.00  22.5w 12TF324   F51  C~488F      
2020 09  17.43619  01 48 35.712  +19 25 00.18  22.7w 12TF324   F51  C~488F      
2020 09  17.45039  01 48 35.648  +19 24 59.62  22.1w 12TF324   F51  C~488G      
2020 09  17.46473  01 48 35.612  +19 24 59.30  22.4w 12TF324   F51  C~488G      
2021 11  23.215249 01 49 28.661  +19 35 18.19  22.4w 12TF324   F52  C~5HC1      
2021 11  23.228528 01 49 28.600  +19 35 17.40  22.2w 12TF324   F52  C~5HC1      
2021 11  23.241838 01 49 28.547  +19 35 17.17  22.1w 12TF324   F52  C~5HC1      

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    -0.03       0.00    -0.12
     2   0.0000      0.00     0.17       0.00    -0.09
     3   0.0000      0.00     0.33       0.00    -0.02
     4   1.6187      0.00    -0.09       0.00    -0.23
     5   1.6214      0.00    -0.02       0.00     0.07
     6   1.6296      0.00    -0.10       0.00     0.05
     7   1.9494      0.00    -0.17       0.00    -0.02
     8   1.9494      0.00    -0.23       0.00     0.23
     9   1.9986      0.00     0.06       0.00    -0.11
    10   1.9986      0.00    -0.16       0.00     0.11
    11   1.9986      0.00    -0.06       0.00    -0.04
    12   1.9986      0.00    -0.09       0.00     0.02
    13   2.6619      0.00     0.28       0.00    -0.06
    14   2.6619      0.00     0.14       0.00    -0.04
    15   2.6619      0.00    -0.05       0.00    -0.31
    16   3.9371      0.00     0.12       0.00     0.03
    17   3.9371      0.00    -0.11       0.00     0.29
    18   3.9371      0.00     0.05       0.00    -0.05
    19   4.0057      0.00    -0.10       0.00    -0.00
    20   4.0057      0.00    -0.12       0.00    -0.19
    21   4.8712      0.00    -0.16       0.00     0.02
    22   4.8712      0.00    -0.08       0.00     0.12
    23   4.8713      0.00     0.04       0.00     0.04
    24   4.8713      0.00    -0.00       0.00     0.18
    25   5.0674      0.00    -0.03       0.00     0.12
    26   5.0675      0.00     0.20       0.00     0.23
    27   5.9088      0.00    -0.04       0.00     0.06
    28   5.9088      0.00     0.17       0.00     0.01
    29   5.9088      0.00     0.10       0.00     0.24
    30   5.9089      0.00    -0.12       0.00     0.17
    31   6.0727      0.00    -0.07       0.00    -0.16
    32   6.1217      0.00    -0.19       0.00    -0.45
    33   6.7275      0.00     0.03       0.00    -0.01
    34   6.7275      0.00    -0.01       0.00     0.10
    35   6.7276      0.00     0.00       0.00     0.02
    36   6.7276      0.00    -0.14       0.00     0.03
    37   7.0852      0.00     0.06       0.00     0.08
    38   7.0852      0.00     0.06       0.00     0.12
    39   7.0853      0.00    -0.07       0.00     0.11
    40   7.0853      0.00     0.01       0.00    -0.11
    41   7.1620      0.00     0.03       0.00    -0.01
    42   7.1620      0.00    -0.02       0.00    -0.15
    43   7.1621      0.00     0.07       0.00    -0.08
    44   7.1621      0.00     0.24       0.00     0.01
    45   7.7732      0.00     0.12       0.00     0.09
    46   7.7733      0.00     0.16       0.00    -0.07
    47   7.7733      0.00     0.04       0.00    -0.05
    48   7.7733      0.00     0.01       0.00    -0.11
    49   7.9811      0.00     0.04       0.00    -0.04
    50   7.9812      0.00     0.00       0.00    -0.06
    51   7.9812      0.00     0.14       0.00    -0.21
    52   7.9812      0.00    -0.02       0.00    -0.04
    53   8.8877      0.00     0.12       0.00    -0.10
    54   8.8877      0.00    -0.06       0.00    -0.10
    55   8.8878      0.00    -0.10       0.00    -0.03
    56   8.8878      0.00     0.07       0.00    -0.10
    57   8.8926      0.00    -0.26       0.00     0.25
    58   8.8928      0.00    -0.06       0.00     0.55
    59  11.8088      0.00     0.02       0.00    -0.17
    60  11.8088      0.00     0.13       0.00    -0.08
    61  11.8089      0.00    -0.06       0.00     0.03
    62  11.8089      0.00    -0.24       0.00     0.08
    63  11.8770      0.00    -0.09       0.00    -0.01
    64  11.8771      0.00    -0.06       0.00     0.36
    65  11.8771      0.00    -0.13       0.00    -0.01
    66  11.8771      0.00     0.23       0.00    -0.14
    67  13.0592      0.00     0.07       0.00     0.14
    68  13.0592      0.00     0.03       0.00    -0.27
    69  13.0593      0.00     0.10       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.

12TF324    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.733    43.733    43.733
ecceobj         0.117     0.117     0.117
incobj          7.880     7.880     7.880
qmin           37.721    37.701    37.730
qmax           49.405    49.452    49.431
amean          43.415    43.415    43.415
amin           43.059    43.049    43.067
amax           43.802    43.802    43.802
emean           0.110     0.110     0.110
emin            0.092     0.093     0.091
emax            0.129     0.129     0.129
imean           8.925     8.925     8.925
imin            8.013     8.010     8.011
imax            9.923     9.923     9.926
excite_mean     0.190     0.190     0.190
fracstop        1.000     1.000     1.000
cjmean          3.051     3.051     3.051

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       180.5     180.4     180.6
kozaiamp        180.0     180.0     179.8