Orbit Fit and Astrometric record for 131695

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: 131695    
# Created Wed Apr 17 01:07:24 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     76 observations of     77
# Arc:  22.26y
# First observation: 2001/12/09
#  Last observation: 2024/03/13
# Chi-squared of fit:    94.61 DOF:    146 RMS:  0.20
# Min/Max residuals:    -0.74    0.70
# Exact a, adot, b, bdot, g, gdot:
  1.651000E-05  3.143272E-02 -6.084093E-08  2.292088E-03  2.904104E-02  5.932595E-04
# 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
    0.846257  106.659276    0.479224    0.012532   -0.853724  2452252.871243
# Heliocentric elements and errors
Epoch:              2452252.5000  =  2001/12/09
Mean Anomaly:            5.37783 +/-     0.000
Argument of Peri:        5.13002 +/-     0.000
Long of Asc Node:       94.70695 +/-     0.000
Inclination:             4.25416 +/-     0.000
Eccentricity:         0.05953436 +/-    0.0000
Semi-Major Axis:     37.51842658 +/-    0.0000
Time of Perihelion: 2450998.5795 +/-       0.0
Perihelion:          35.28479097 +/-    0.0000
Aphelion:            39.75206219 +/-    0.0000
Period (y)              229.8133 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           -9.65493370 +/-    0.0000
Ecliptic Y           33.94591125 +/-    0.0000
Ecliptic Z            0.50856062 +/-    0.0000
Ecliptic XDOT        -0.00286266 +/-    0.0000
Ecliptic YDOT        -0.00079904 +/-    0.0000
Ecliptic ZDOT         0.00021710 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   35.29590659 +/-    0.0000
Geocenter to KBO     34.43404273 +/-    0.0000
# Hcoef:  7.66

The following table shows the complete astrometric record for 131695. 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 (131695) followed by the observatory code and reference code for the source of the astrometry.

2001 12  09.37050  07 12 42.60   +23 14 25.5         131695    568  Ce7056      
2001 12  09.40102  07 12 42.43   +23 14 25.8         131695    568  Ce7056      
2001 12  09.43803  07 12 42.23   +23 14 26.3         131695    568  Ce7056      
2002 01  09.45089  07 09 36.85   +23 20 30.2   22. R 131695    568  Ce7056      
2002 02  03.43977  07 07 08.70   +23 24 52.2   22.2R 131695    568  Cf2430      
2002 02  03.53242  07 07 08.16   +23 24 53.2         131695    568  Cf2430      
2002 03  12.35188  07 04 51.65   +23 28 32.8   23.1R 131695    568  Cf2430      
2002 03  13.33191  07 04 49.99   +23 28 35.2         131695    568  Cf2430      
2002 10  31.50289  07 22 44.97   +23 02 08.9   23.0R 131695    568  Cg5849      
2002 11  01.52823  07 22 43.69   +23 02 14.5   23.0R 131695    568  Cg5849      
2002 11  05.55801  07 22 37.31   +23 02 45.5   22.8R 131695    568  Cl8351      
2002 11  06.55476  07 22 35.52   +23 02 44.8         131695    568  Cl8351      
2003 12  24.45784  07 27 04.85   +23 03 33.1   23.0g 131695    568  Cq9107      
2003 12  24.48048  07 27 04.72   +23 03 33.5   23.1g 131695    568  Cq9107      
2003 12  24.50418  07 27 04.59   +23 03 33.9   23.2g 131695    568  Cq9107      
2003 12  25.49737  07 26 58.72   +23 03 47.7   23.7g 131695    568  Cq9107      
2004 02  19.10635  07 21 37.79   +23 15 16.9   22.8R 131695    695  Cq9107      
2004 02  20.10289  07 21 33.44   +23 15 25.0   23.1R 131695    695  Cq9107      
2004 02  20.16909  07 21 33.15   +23 15 25.7   23.0R 131695    695  Cq9107      
2004 04  17.14188  07 20 25.88   +23 17 03.3         131695    675  Cq9107      
2004 04  17.18593  07 20 26.01   +23 17 03.3         131695    675  Cq9107      
2004 12  13.38789  07 35 51.92   +22 52 01.7   23.0R 131695    290  Cm4049      
2004 12  13.49737  07 35 51.34   +22 52 03.3   22.9R 131695    290  Cm4049      
2004 12  14.43146  07 35 46.47   +22 52 16.5   22.8R 131695    290  Cm4049      
2004 12  14.49398  07 35 46.13   +22 52 17.4   23.0R 131695    290  Cm4049      
2005 01  08.34523  07 33 20.78   +22 58 29.8   23.0r 131695    568  Cq9107      
2005 01  08.38310  07 33 20.55   +22 58 30.5   22.8r 131695    568  Cq9107      
2005 01  08.42087  07 33 20.31   +22 58 31.0   22.8r 131695    568  Cq9107      
2007 11  08.39543  08 00 52.86   +22 09 05.1         131695    695  Cy4463      
2007 11  09.39462  08 00 51.81   +22 09 11.9         131695    695  Cy4463      
2011 01  30.469049 08 17 35.936  +21 44 29.94  23.0G 131695    F51  C~42Eo      
2011 01  30.484294 08 17 35.830  +21 44 30.12  23.3G 131695    F51  C~42Eo      
2011 01  30.515680 08 17 35.595  +21 44 30.68  22.0G 131695    F51  C~42Eo      
2012 01  26.502565 08 25 39.137  +21 25 05.29  23.2G 131695    F51  C~42Eo      
2012 01  26.540477 08 25 38.924  +21 25 06.55  22.6G 131695    F51  C~42Eo      
2013 02  12.287347 08 31 31.882  +21 12 03.60  23.6G 131695    F51  C~42Eo      
2013 02  12.313756 08 31 31.764  +21 12 04.00  23.2G 131695    F51  C~42Eo      
2013 02  12.326973 08 31 31.675  +21 12 04.43  23.0G 131695    F51  C~42Eo      
2015 01  14.379735 08 49 28.360  +20 18 42.92  23.3G 131695    F51  C~42Eo      
2015 01  14.392025 08 49 28.279  +20 18 43.11  22.6G 131695    F51  C~42Eo      
2015 01  14.404268 08 49 28.220  +20 18 43.32  22.6G 131695    F51  C~42Eo      
2015 01  14.416528 08 49 28.138  +20 18 43.66  22.5G 131695    F51  C~42Eo      
2015 01  16.534908 08 49 16.123  +20 19 35.53  22.5G 131695    F51  C~42Eo      
2015 01  16.547162 08 49 16.046  +20 19 35.79  22.6G 131695    F51  C~42Eo      
2015 01  16.559454 08 49 15.975  +20 19 36.14  22.7G 131695    F51  C~42Eo      
2015 01  16.571753 08 49 15.912  +20 19 36.53  22.9G 131695    F51  C~42Eo      
2015 02  16.289215 08 46 16.949  +20 31 40.37  22.7G 131695    F51  C~42Eo      
2015 02  16.301548 08 46 16.883  +20 31 39.96  23.5G 131695    F51  C~42Eo      
2015 02  16.313901 08 46 16.810  +20 31 40.66  22.4G 131695    F51  C~42Eo      
2015 02  16.326265 08 46 16.735  +20 31 40.73  23.0G 131695    F51  C~42Eo      
2015 03  16.373140 08 44 03.295  +20 39 34.66  23.1G 131695    F51  C~42Eo      
2015 03  16.409913 08 44 03.152  +20 39 35.16  23.2G 131695    F51  C~42Eo      
2015 04  10.303667 08 43 02.547  +20 42 17.55  24.4G 131695    F51  C~42Eo      
2016 02  09.365243 08 54 26.152  +20 06 23.44  23.3G 131695    F51  C~42Eo      
2016 02  11.286355 08 54 15.016  +20 07 08.35  23.5G 131695    F51  C~42Eo      
2016 02  11.286999 08 54 15.032  +20 07 08.26  22.6G 131695    F51  C~42Eo      
2016 02  11.298296 08 54 14.960  +20 07 08.90  22.7G 131695    F51  C~42Eo      
2016 02  11.298942 08 54 14.982  +20 07 08.57  23.0G 131695    F51  C~42Eo      
2016 02  11.309943 08 54 14.924  +20 07 08.42  23.1G 131695    F51  C~42Eo      
2016 02  11.310587 08 54 14.913  +20 07 09.07  22.3G 131695    F51  C~42Eo      
2016 02  11.321582 08 54 14.824  +20 07 09.19  23.4G 131695    F51  C~42Eo      
2016 02  11.322230 08 54 14.841  +20 07 09.28  23.5G 131695    F51  C~42Eo      
2017 01  28.414626 09 02 56.793  +19 37 51.83  23.1G 131695    F51  C~42Eo      
2018 03  07.285464 09 06 50.726  +19 27 44.65  22.1G 131695    F51  C~42Eo      
2018 03  08.263154 09 06 46.154  +19 28 03.08  23.3G 131695    F51  C~42Eo      
2018 03  08.276292 09 06 46.076  +19 28 02.89  22.8G 131695    F51  C~42Eo      
2018 03  08.289496 09 06 46.014  +19 28 03.14  23.1G 131695    F51  C~42Eo      
2018 03  08.302655 09 06 45.928  +19 28 03.52  23.1G 131695    F51  C~42Eo      
2019 12  27.474982 09 27 29.778  +18 05 34.66  23.5G 131695    F51  C~42Eo      
2019 12  27.487861 09 27 29.720  +18 05 34.87  22.5G 131695    F51  C~42Eo      
2020 01  26.566377 09 25 05.046  +18 18 39.97  22.5G 131695    F51  C~42Eo      
2020 01  27.535732 09 24 59.656  +18 19 07.27  22.5G 131695    F51  C~42Eo      
2020 01  27.548168 09 24 59.556  +18 19 07.27  23.4G 131695    F51  C~42Eo      
2020 01  27.560585 09 24 59.507  +18 19 07.92  23.0G 131695    F51  C~42Eo      
2020 01  27.572996 09 24 59.426  +18 19 07.99  22.8G 131695    F51  C~42Eo      
2024 03  13.123830 09 49 17.565  +16 43 26.73  23.5G 131695    G37  C~7wzW      
2024 03  13.210930 09 49 17.137  +16 43 28.34        131695    G37  C~7wzW      

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     0.17       0.00     0.25
     2   0.0001      0.00     0.08       0.00     0.20
     3   0.0002      0.00     0.07       0.00     0.27
     4   0.0851      0.00    -0.06       0.00     0.04
     5   0.1535      0.00    -0.05       0.00    -0.20
     6   0.1538      0.00    -0.63       0.00     0.00
     7   0.2546      0.00    -0.13       0.00    -0.15
     8   0.2573      0.00    -0.04       0.00    -0.18
     9   0.8929      0.00     0.03       0.00    -0.28
    10   0.8957      0.00     0.11       0.00    -0.16
    11   0.9067      0.00 (  -1.36)      0.00 (   7.01)
    12   0.9095      0.00    -0.42       0.00    -0.14
    13   2.0399      0.00    -0.10       0.00    -0.10
    14   2.0400      0.00    -0.02       0.00    -0.02
    15   2.0401      0.00     0.16       0.00     0.05
    16   2.0428      0.00    -0.06       0.00    -0.09
    17   2.1950      0.00     0.17       0.00     0.23
    18   2.1978      0.00     0.31       0.00    -0.02
    19   2.1979      0.00     0.35       0.00     0.12
    20   2.3539      0.00    -0.24       0.00    -0.17
    21   2.3540      0.00     0.28       0.00     0.06
    22   3.0117      0.00     0.24       0.00     0.02
    23   3.0120      0.00     0.20       0.00     0.09
    24   3.0145      0.00     0.13       0.00     0.01
    25   3.0147      0.00     0.03       0.00     0.03
    26   3.0828      0.00    -0.14       0.00     0.12
    27   3.0829      0.00    -0.00       0.00     0.24
    28   3.0830      0.00    -0.02       0.00     0.16
    29   5.9138      0.00    -0.21       0.00    -0.04
    30   5.9166      0.00     0.00       0.00    -0.20
    31   9.1420      0.00     0.11       0.00     0.02
    32   9.1420      0.00    -0.09       0.00    -0.10
    33   9.1421      0.00    -0.74       0.00    -0.16
    34  10.1304      0.00    -0.31       0.00    -0.33
    35  10.1305      0.00    -0.02       0.00     0.13
    36  11.1784      0.00    -0.41       0.00     0.00
    37  11.1785      0.00     0.09       0.00    -0.13
    38  11.1785      0.00    -0.11       0.00     0.04
    39  13.0979      0.00     0.15       0.00     0.19
    40  13.0979      0.00    -0.01       0.00     0.08
    41  13.0980      0.00     0.15       0.00    -0.02
    42  13.0980      0.00    -0.02       0.00     0.02
    43  13.1038      0.00     0.03       0.00     0.01
    44  13.1038      0.00    -0.06       0.00    -0.03
    45  13.1039      0.00    -0.06       0.00     0.02
    46  13.1039      0.00     0.07       0.00     0.11
    47  13.1880      0.00     0.21       0.00     0.28
    48  13.1880      0.00     0.27       0.00    -0.39
    49  13.1881      0.00     0.23       0.00     0.04
    50  13.1881      0.00     0.16       0.00    -0.15
    51  13.2649      0.00    -0.08       0.00     0.05
    52  13.2650      0.00    -0.13       0.00     0.13
    53  13.3332      0.00     0.14       0.00    -0.10
    54  14.1684      0.00    -0.16       0.00     0.33
    55  14.1736      0.00    -0.36       0.00    -0.01
    56  14.1736      0.00    -0.06       0.00    -0.12
    57  14.1737      0.00    -0.15       0.00     0.26
    58  14.1737      0.00     0.24       0.00    -0.09
    59  14.1737      0.00     0.33       0.00    -0.50
    60  14.1737      0.00     0.23       0.00     0.13
    61  14.1737      0.00    -0.14       0.00    -0.01
    62  14.1737      0.00     0.17       0.00     0.07
    63  15.1377      0.00    -0.08       0.00    -0.03
    64  16.2407      0.00    -0.20       0.00    -0.04
    65  16.2434      0.00     0.34       0.00     0.37
    66  16.2434      0.00     0.11       0.00    -0.07
    67  16.2434      0.00     0.12       0.00    -0.06
    68  16.2435      0.00    -0.22       0.00     0.08
    69  18.0482      0.00     0.23       0.00     0.05
    70  18.0482      0.00     0.11       0.00    -0.04
    71  18.1306      0.00    -0.14       0.00     0.09
    72  18.1332      0.00     0.10       0.00     0.11
    73  18.1333      0.00    -0.34       0.00    -0.24
    74  18.1333      0.00    -0.02       0.00     0.07
    75  18.1333      0.00    -0.17       0.00    -0.21
    76  22.2581      0.00    -0.06       0.00     0.70
    77  22.2583      0.00    -0.06       0.00     0.32

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.

131695    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        37.380    37.380    37.380
ecceobj         0.056     0.056     0.056
incobj          4.257     4.257     4.257
qmin           35.031    34.935    34.634
qmax           39.640    39.795    40.106
amean          37.234    37.233    37.234
amin           36.946    36.934    36.903
amax           37.528    37.546    37.554
emean           0.032     0.037     0.044
emin            0.001     0.007     0.007
emax            0.057     0.060     0.068
imean           3.495     3.595     3.461
imin            2.222     2.219     2.230
imax            4.814     4.832     4.668
excite_mean     0.070     0.074     0.075
fracstop        1.000     1.000     1.000
cjmean          3.027     3.027     3.027

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       178.2     179.8     172.2
kozaiamp        180.0     180.0     180.0