Orbit Fit and Astrometric record for 13TP145

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: 13TP145   
# Created Fri Mar 29 01:15:52 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     52 observations of     52
# Arc:  14.35y
# First observation: 2009/10/10
#  Last observation: 2024/02/15
# Chi-squared of fit:    97.44 DOF:     98 RMS:  0.24
# Min/Max residuals:    -0.98    0.66
# Exact a, adot, b, bdot, g, gdot:
  2.309636E-05  1.006792E-01  1.331472E-05  5.714751E-02  6.696385E-02 -3.842344E-02
# Covariance matrix:
  9.7986E-11  9.8972E-09 -8.0552E-11  1.3874E-08 -4.3510E-09 -4.8182E-08
  9.8972E-09  1.8352E-06 -8.2105E-09  1.6096E-06 -4.4155E-07 -6.4277E-06
 -8.0552E-11 -8.2105E-09  6.7035E-11 -1.1497E-08  3.5946E-09  3.9818E-08
  1.3874E-08  1.6096E-06 -1.1497E-08  2.0485E-06 -6.1873E-07 -7.2305E-06
 -4.3510E-09 -4.4155E-07  3.5946E-09 -6.1873E-07  1.9417E-07  2.1471E-06
 -4.8182E-08 -6.4277E-06  3.9818E-08 -7.2305E-06  2.1471E-06  2.6707E-05
#      lat0       lon0       xBary       yBary       zBary        JD0
    5.106861  -26.518754   -0.686919    0.064217   -0.718755  2455114.641237
# Heliocentric elements and errors
Epoch:              2455114.5000  =  2009/10/10
Mean Anomaly:          335.51375 +/-     0.001
Argument of Peri:       68.62976 +/-     0.000
Long of Asc Node:      327.25331 +/-     0.000
Inclination:            29.24835 +/-     0.001
Eccentricity:         0.41544605 +/-    0.0000
Semi-Major Axis:     23.03723716 +/-    0.0000
Time of Perihelion: 2457861.5327 +/-       0.1
Perihelion:          13.46650796 +/-    0.0001
Aphelion:            32.60796636 +/-    0.0001
Period (y)              110.5742 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           14.26522150 +/-    0.0000
Ecliptic Y           -6.35176814 +/-    0.0000
Ecliptic Z            1.32949486 +/-    0.0000
Ecliptic XDOT         0.00025538 +/-    0.0000
Ecliptic YDOT         0.00447983 +/-    0.0000
Ecliptic ZDOT         0.00218731 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   15.67203893 +/-    0.0000
Geocenter to KBO     14.93360580 +/-    0.0000
# Hcoef:  9.23

The following table shows the complete astrometric record for 13TP145. 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 (13TP145) followed by the observatory code and reference code for the source of the astrometry.

2009 10  10.140471 22 14 11.44   -05 27 52.5   21.1r 13TP145   645  C~3xqn      
2009 10  10.141300 22 14 11.43   -05 27 52.5   20.8i 13TP145   645  C~3xqn      
2009 10  10.143788 22 14 11.41   -05 27 52.7   21.7g 13TP145   645  C~3xqn      
2009 10  15.120122 22 13 36.47   -05 29 42.9   21.5r 13TP145   645  C~3xqn      
2009 10  15.120951 22 13 36.47   -05 29 43.0   20.9i 13TP145   645  C~3xqn      
2009 10  15.123439 22 13 36.44   -05 29 43.0   21.9g 13TP145   645  C~3xqn      
2010 09  15.29609  22 35 59.64   +00 09 39.5   21.0V 13TP145   G96  C~3xqn      
2010 09  15.30460  22 35 59.56   +00 09 39.6   20.8V 13TP145   G96  C~3xqn      
2010 09  15.31306  22 35 59.49   +00 09 39.2   20.9V 13TP145   G96  C~3xqn      
2010 09  15.32156  22 35 59.38   +00 09 39.0   20.8V 13TP145   G96  C~3xqn      
2013 10  08.02964  23 33 27.781  +18 05 08.80  20.7R 13TP145   809  C~0wdY      
2013 10  08.03221  23 33 27.708  +18 05 07.54  21.1R 13TP145   809  C~0wdY      
2013 10  08.10051  23 33 26.858  +18 05 04.16  20.8R 13TP145   809  C~0wdY      
2013 10  08.10307  23 33 26.865  +18 05 02.97  20.9R 13TP145   809  C~0wdY      
2013 10  08.16743  23 33 26.052  +18 04 59.62  20.9R 13TP145   809  C~0wdY      
2013 10  08.16999  23 33 26.023  +18 04 58.80  21.2R 13TP145   809  C~0wdY      
2013 10  29.00791  23 29 45.962  +17 39 42.73  20.8R 13TP145   809  C~0wdY      
2013 10  29.06256  23 29 45.534  +17 39 38.66  20.7R 13TP145   809  C~0wdY      
2013 10  29.06512  23 29 45.495  +17 39 38.80  20.3R 13TP145   809  C~0wdY      
2013 10  29.12050  23 29 45.010  +17 39 34.23  20.9R 13TP145   809  C~0wdY      
2020 11  14.382760 03 58 13.643  +52 06 53.13  20.9G 13TP145   G37  C~4Nkp      
2020 11  14.443650 03 58 12.421  +52 06 52.10        13TP145   G37  C~4Nkp      
2023 10  09.589223 06 29 52.206  +48 32 04.52  21.4w 13TP145   F52  C~7Axc      
2023 10  09.601581 06 29 52.235  +48 32 05.32  21.4w 13TP145   F52  C~7Axc      
2023 10  09.613921 06 29 52.261  +48 32 06.37  21.5w 13TP145   F52  C~7Axc      
2023 10  09.626279 06 29 52.282  +48 32 07.20  21.6w 13TP145   F52  C~7Axc      
2023 10  22.574109 06 29 47.510  +48 48 44.29  21.3w 13TP145   F52  C~7Mj1      
2023 10  22.587586 06 29 47.470  +48 48 45.35  21.4w 13TP145   F52  C~7Mj1      
2023 10  22.614490 06 29 47.378  +48 48 47.35  21.3w 13TP145   F52  C~7Mj1      
2023 11  11.479441 06 27 31.739  +49 11 49.59  21.3w 13TP145   F52  C~7RAY      
2023 11  11.491067 06 27 31.618  +49 11 50.23  21.2w 13TP145   F52  C~7RAY      
2023 11  11.502738 06 27 31.478  +49 11 50.94  21.3w 13TP145   F52  C~7RAY      
2023 11  11.514352 06 27 31.362  +49 11 51.69  21.2w 13TP145   F52  C~7RAY      
2023 12  08.502748 06 21 01.000  +49 30 45.28  21.2w 13TP145   F52  C~7bID      
2023 12  08.515047 06 21 00.770  +49 30 45.45  21.3w 13TP145   F52  C~7bID      
2023 12  08.527344 06 21 00.548  +49 30 45.85  21.5w 13TP145   F52  C~7bID      
2023 12  08.539664 06 21 00.354  +49 30 46.27  21.2w 13TP145   F52  C~7bID      
2023 12  15.485726 06 18 54.872  +49 32 10.40  21.2w 13TP145   F52  C~7bID      
2023 12  15.496818 06 18 54.664  +49 32 10.49  21.0w 13TP145   F52  C~7bID      
2023 12  15.507838 06 18 54.456  +49 32 10.71  21.0w 13TP145   F52  C~7bID      
2023 12  15.518902 06 18 54.228  +49 32 10.74  21.0w 13TP145   F52  C~7bID      
2024 02  04.302461 06 04 41.818  +48 52 58.73  21.2w 13TP145   F52  C~7mvP      
2024 02  04.314816 06 04 41.684  +48 52 57.69  21.3w 13TP145   F52  C~7mvP      
2024 02  04.327140 06 04 41.531  +48 52 56.63  21.2w 13TP145   F52  C~7mvP      
2024 02  04.339444 06 04 41.380  +48 52 55.59  21.3w 13TP145   F52  C~7mvP      
2024 02  13.279473 06 03 13.146  +48 38 36.51  21.2w 13TP145   F52  C~7mvP      
2024 02  13.290525 06 03 13.038  +48 38 35.37  21.2w 13TP145   F52  C~7mvP      
2024 02  13.301561 06 03 12.942  +48 38 34.43  21.4w 13TP145   F52  C~7mvP      
2024 02  13.312613 06 03 12.834  +48 38 33.19  21.4w 13TP145   F52  C~7mvP      
2024 02  15.236117 06 02 57.677  +48 35 17.63  21.1w 13TP145   F52  C~7mvP      
2024 02  15.252933 06 02 57.561  +48 35 15.64  21.1w 13TP145   F52  C~7mvP      
2024 02  15.261341 06 02 57.443  +48 35 14.86  21.3w 13TP145   F52  C~7mvP      

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     0.12       0.00     0.08
     2   0.0000      0.00     0.06       0.00     0.10
     3   0.0000      0.00     0.05       0.00    -0.03
     4   0.0136      0.00    -0.04       0.00     0.04
     5   0.0136      0.00     0.05       0.00    -0.04
     6   0.0136      0.00    -0.15       0.00     0.01
     7   0.9313      0.00    -0.74       0.00    -0.27
     8   0.9313      0.00    -0.42       0.00     0.19
     9   0.9313      0.00     0.05       0.00     0.15
    10   0.9314      0.00    -0.07       0.00     0.32
    11   3.9942      0.00     0.21       0.00     0.11
    12   3.9942      0.00    -0.40       0.00    -0.98
    13   3.9944      0.00    -0.38       0.00     0.15
    14   3.9944      0.00     0.20       0.00    -0.87
    15   3.9946      0.00     0.05       0.00     0.07
    16   3.9946      0.00     0.09       0.00    -0.58
    17   4.0517      0.00    -0.15       0.00     0.26
    18   4.0518      0.00     0.66       0.00     0.31
    19   4.0518      0.00     0.42       0.00     0.65
    20   4.0520      0.00     0.46       0.00     0.27
    21  11.0972      0.00    -0.10       0.00     0.16
    22  11.0973      0.00    -0.19       0.00     0.04
    23  13.9971      0.00    -0.07       0.00     0.16
    24  13.9972      0.00     0.00       0.00    -0.01
    25  13.9972      0.00     0.04       0.00     0.08
    26  13.9972      0.00    -0.00       0.00    -0.06
    27  14.0327      0.00    -0.08       0.00    -0.03
    28  14.0327      0.00    -0.00       0.00    -0.00
    29  14.0328      0.00    -0.04       0.00    -0.04
    30  14.0872      0.00     0.01       0.00     0.06
    31  14.0872      0.00     0.08       0.00    -0.02
    32  14.0872      0.00    -0.12       0.00    -0.04
    33  14.0873      0.00     0.03       0.00    -0.01
    34  14.1612      0.00    -0.01       0.00    -0.15
    35  14.1612      0.00    -0.15       0.00    -0.21
    36  14.1612      0.00    -0.17       0.00    -0.04
    37  14.1613      0.00     0.23       0.00     0.16
    38  14.1803      0.00     0.10       0.00    -0.10
    39  14.1803      0.00     0.12       0.00    -0.07
    40  14.1803      0.00     0.11       0.00     0.11
    41  14.1804      0.00    -0.18       0.00     0.09
    42  14.3194      0.00    -0.05       0.00    -0.02
    43  14.3194      0.00     0.12       0.00     0.06
    44  14.3195      0.00     0.00       0.00     0.12
    45  14.3195      0.00    -0.09       0.00     0.20
    46  14.3440      0.00     0.22       0.00    -0.05
    47  14.3440      0.00     0.03       0.00    -0.08
    48  14.3440      0.00     0.02       0.00     0.10
    49  14.3441      0.00    -0.18       0.00    -0.02
    50  14.3493      0.00     0.11       0.00     0.21
    51  14.3494      0.00     0.36       0.00    -0.06
    52  14.3494      0.00    -0.41       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.

13TP145    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        22.924    22.924    22.925
ecceobj         0.415     0.415     0.415
incobj         29.266    29.266    29.266
qmin           13.260    13.260    13.260
qmax           32.604    32.605    32.603
amean          22.661    22.885    22.916
amin           22.290    22.672    22.727
amax           23.015    23.193    23.139
emean           0.403     0.407     0.409
emin            0.385     0.391     0.401
emax            0.417     0.417     0.417
imean          30.965    30.858    30.812
imin           30.496    30.496    30.496
imax           31.712    31.430    31.100
excite_mean     0.653     0.655     0.655
fracstop        0.004     0.004     0.004
cjmean          2.685     2.677     2.676

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        77.4      76.8      78.7
kozaiamp          8.4       7.5       9.9