Orbit Fit and Astrometric record for 13ST102

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: 13ST102   
# Created Tue Apr  1 01:09:41 2025
# Orbit generated from Bernstein formalism
# Fitting     47 observations of     47
# Arc:   4.30y
# First observation: 2013/08/08
#  Last observation: 2017/11/25
Preliminary a, adot, b, bdot, g, gdot:
  -0.000161   0.022650  -0.000003   0.000633   0.023393   0.000000
# Chi-squared of fit:    43.67 DOF:     88 RMS:  0.17
# Min/Max residuals:    -0.51    0.47
# Exact a, adot, b, bdot, g, gdot:
  1.562883E-05  2.271617E-02 -5.438797E-07  6.353344E-04  2.355982E-02  2.244286E-03
# Covariance matrix:
  1.0349E-13 -3.2980E-14  9.7209E-16 -1.0540E-15  5.8001E-14 -3.5610E-13
 -3.2980E-14  1.7944E-13 -1.6968E-15  5.6389E-15  9.7890E-14  2.1971E-12
  9.7209E-16 -1.6968E-15  5.2956E-14 -2.0235E-14  7.8873E-17 -2.6234E-14
 -1.0540E-15  5.6389E-15 -2.0235E-14  1.8790E-14  2.6285E-15  7.9230E-14
  5.8001E-14  9.7890E-14  7.8873E-17  2.6285E-15  1.4696E-13  1.0966E-12
 -3.5610E-13  2.1971E-12 -2.6234E-14  7.9230E-14  1.0966E-12  3.0670E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   -1.953406   14.266593    0.865997   -0.018071   -0.530617  2456512.957278
# Heliocentric elements and errors
Epoch:              2456510.5000  =  2013/08/06
Mean Anomaly:           68.78459 +/-     0.023
Argument of Peri:      231.33488 +/-     0.037
Long of Asc Node:       64.20620 +/-     0.006
Inclination:             2.47817 +/-     0.000
Eccentricity:         0.07933111 +/-    0.0002
Semi-Major Axis:     43.99710077 +/-    0.0032
Time of Perihelion: 2436143.6832 +/-       6.4
Perihelion:          40.50676200 +/-    0.0112
Aphelion:            47.48743953 +/-    0.0113
Period (y)              291.8396 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           41.83992033 +/-    0.0007
Ecliptic Y            9.74854199 +/-    0.0002
Ecliptic Z           -1.44679457 +/-    0.0000
Ecliptic XDOT        -0.00040171 +/-    0.0000
Ecliptic YDOT         0.00262238 +/-    0.0000
Ecliptic ZDOT         0.00006504 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.98495340 +/-    0.0007
Geocenter to KBO     42.44514341 +/-    0.0007
# Hcoef:  8.19

The following table shows the complete astrometric record for 13ST102. 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 (13ST102) followed by the observatory code and reference code for the source of the astrometry.

2013 08  08.45650  00 55 33.631  +03 49 27.02  24.3r 13ST102   568  C~36Su      
2013 08  08.49535  00 55 33.563  +03 49 26.81  25.1r 13ST102   568  C~36Su      
2013 08  31.54126  00 54 32.284  +03 42 19.78  24.8r 13ST102   568  C~36Su      
2013 09  01.42715  00 54 29.294  +03 41 59.96  24.7r 13ST102   568  C~36Su      
2013 09  01.46598  00 54 29.134  +03 41 58.61  24.7r 13ST102   568  C~36Su      
2013 09  05.40666  00 54 15.276  +03 40 26.81  24.4r 13ST102   568  C~36Su      
2013 09  05.44546  00 54 15.109  +03 40 25.94  24.7r 13ST102   568  C~36Su      
2013 09  29.32731  00 52 38.148  +03 30 02.10  24.0r 13ST102   568  C~36Su      
2013 09  29.33220  00 52 38.111  +03 30 01.92  24.7r 13ST102   568  C~36Su      
2013 09  29.37646  00 52 37.917  +03 30 00.64  24.5r 13ST102   568  C~36Su      
2013 09  29.41553  00 52 37.735  +03 29 59.56  24.2r 13ST102   568  C~36Su      
2013 10  03.36136  00 52 20.443  +03 28 11.42  24.1r 13ST102   568  C~36Su      
2013 10  03.42199  00 52 20.176  +03 28 09.61  24.1r 13ST102   568  C~36Su      
2013 10  04.48370  00 52 15.485  +03 27 39.98  24.1r 13ST102   568  C~36Su      
2013 10  04.49405  00 52 15.438  +03 27 40.07  24.4r 13ST102   568  C~36Su      
2013 10  04.50281  00 52 15.408  +03 27 40.01  24.5r 13ST102   568  C~36Su      
2013 10  04.51901  00 52 15.312  +03 27 39.44  24.6r 13ST102   568  C~36Su      
2013 10  09.46918  00 51 53.469  +03 25 24.15  25.0r 13ST102   568  C~36Su      
2013 11  27.26350  00 48 53.147  +03 07 54.90  24.5r 13ST102   568  C~36Su      
2013 11  27.30798  00 48 53.006  +03 07 54.40  24.6r 13ST102   568  C~36Su      
2013 12  05.22182  00 48 36.328  +03 06 32.84  24.5r 13ST102   568  C~36Su      
2014 06  25.57715  01 00 16.962  +04 23 07.14  25.3r 13ST102   568  C~36Su      
2014 06  26.57603  01 00 18.809  +04 23 16.64  24.6r 13ST102   568  C~36Su      
2014 07  23.55193  01 00 36.705  +04 24 00.87  24.2r 13ST102   568  C~36Su      
2014 07  27.53111  01 00 34.210  +04 23 35.49  24.5r 13ST102   568  C~36Su      
2014 08  22.61348  00 59 46.951  +04 17 46.35  24.1r 13ST102   568  C~36Su      
2014 08  28.45040  00 59 29.823  +04 15 50.02  24.1r 13ST102   568  C~36Su      
2014 10  02.346712 00 57 14.04   +04 01 16.6         13ST102   T09  C~7X4h      
2014 10  02.463462 00 57 13.54   +04 01 13.3   24.5r 13ST102   T09  C~7X4h      
2014 10  02.588873 00 57 12.97   +04 01 09.7         13ST102   T09  C~7X4h      
2014 10  23.33112  00 55 42.312  +03 51 56.24  24.1r 13ST102   568  C~36Su      
2014 10  25.35645  00 55 33.761  +03 51 05.71  24.0r 13ST102   568  C~36Su      
2014 10  25.45680  00 55 33.308  +03 51 03.13  24.4r 13ST102   568  C~36Su      
2014 10  27.24490  00 55 25.861  +03 50 18.87  25.2r 13ST102   568  C~36Su      
2014 10  27.303099 00 55 25.61   +03 50 17.6         13ST102   T14  C~7X4h      
2014 10  27.36937  00 55 25.345  +03 50 15.82  24.4r 13ST102   568  C~36Su      
2014 10  29.25791  00 55 17.590  +03 49 30.09  24.4r 13ST102   568  C~36Su      
2014 11  19.20738  00 54 01.736  +03 42 16.81  24.0r 13ST102   568  C~36Su      
2014 11  19.27463  00 54 01.532  +03 42 15.71  24.3r 13ST102   568  C~36Su      
2014 11  25.22391  00 53 44.474  +03 40 44.10  24.6r 13ST102   568  C~36Su      
2015 01  17.26407  00 53 18.128  +03 40 47.95  24.8r 13ST102   568  C~36Su      
2017 07  24.59111  01 14 40.298  +05 57 52.39  24.8w 13ST102   568  C~36Su      
2017 11  22.411705 01 08 04.65   +05 17 01.8         13ST102   T14  C~7X4h      
2017 11  22.450448 01 08 04.53   +05 17 01.0         13ST102   T14  C~7X4h      
2017 11  22.468654 01 08 04.46   +05 17 00.8         13ST102   T14  C~7X4h      
2017 11  23.35788  01 08 01.748  +05 16 46.18  24.6w 13ST102   568  C~36Su      
2017 11  25.21269  01 07 56.247  +05 16 16.81  24.5w 13ST102   568  C~36Su      

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    -0.08       0.00     0.20
     2   0.0001     -1.02     0.14       0.20     0.46
     3   0.0632  -1012.00    -0.11     -39.14    -0.14
     4   0.0656  -1060.94     0.14     -40.12     0.07
     5   0.0657  -1063.67    -0.38     -40.43    -0.21
     6   0.0765  -1290.48     0.11     -44.88    -0.00
     7   0.0766  -1293.12    -0.19     -44.72     0.19
     8   0.1420  -2873.17     0.22     -58.33     0.00
     9   0.1420  -2873.75    -0.01     -58.28     0.05
    10   0.1421  -2876.93    -0.01     -58.34    -0.03
    11   0.1423  -2879.86    -0.13     -58.28     0.01
    12   0.1531  -3160.50     0.09     -57.75     0.15
    13   0.1532  -3164.88     0.10     -57.87    -0.02
    14   0.1561  -3241.13    -0.18     -57.99    -0.42
    15   0.1562  -3241.75    -0.04     -57.64    -0.07
    16   0.1562  -3242.18     0.15     -57.52     0.04
    17   0.1562  -3243.73    -0.22     -57.49     0.06
    18   0.1698  -3597.76    -0.14     -55.57     0.08
    19   0.3034  -6495.53     0.27      24.08    -0.27
    20   0.3035  -6497.67    -0.12      24.44    -0.05
    21   0.3252  -6759.81     0.13      46.21     0.19
    22   0.8792   4691.02    -0.35     228.83    -0.51
    23   0.8819   4720.19     0.16     226.96    -0.11
    24   0.9558   4984.38     0.06     164.73    -0.09
    25   0.9667   4940.15     0.33     155.67    -0.29
    26   1.0381   4152.98    -0.00     105.60    -0.05
    27   1.0541   3871.63     0.01      96.93     0.01
    28   1.1496   1660.10    -0.23      74.33     0.29
    29   1.1499   1651.92     0.02      74.17     0.06
    30   1.1503   1642.66    -0.21      74.14    -0.04
    31   1.2070    177.49     0.28      87.44    -0.35
    32   1.2126     39.93     0.47      90.27     0.02
    33   1.2129     32.68     0.11      90.51     0.09
    34   1.2178    -87.22    -0.08      92.76     0.08
    35   1.2179    -91.18    -0.10      93.04     0.26
    36   1.2181    -95.53     0.04      92.93     0.03
    37   1.2233   -220.25    -0.03      95.60     0.12
    38   1.2806  -1434.85    -0.09     134.95     0.04
    39   1.2808  -1438.09     0.01     135.12     0.03
    40   1.2971  -1709.01    -0.04     149.41     0.07
    41   1.4423  -2071.21    -0.02     305.55    -0.03
    42   3.9593  18833.04     0.18     549.55     0.11
    43   4.2901  12401.53     0.04     534.08     0.02
    44   4.2902  12399.56     0.01     534.02    -0.13
    45   4.2902  12398.51    -0.13     534.24     0.04
    46   4.2927  12355.34    -0.10     536.22     0.01
    47   4.2978  12267.88    -0.08     540.50     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.

13ST102    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.245    44.256    44.235
ecceobj         0.083     0.084     0.083
incobj          2.477     2.477     2.477
qmin           39.820    39.805    39.811
qmax           48.456    48.469    48.396
amean          43.991    44.005    43.981
amin           43.641    43.643    43.631
amax           44.369    44.384    44.351
emean           0.074     0.075     0.074
emin            0.057     0.058     0.057
emax            0.092     0.093     0.091
imean           1.033     1.029     1.033
imin            0.107     0.099     0.105
imax            1.723     1.724     1.722
excite_mean     0.077     0.078     0.076
fracstop        1.000     1.000     1.000
cjmean          3.094     3.094     3.094

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       204.8     205.4     204.6
kozaiamp        179.9     180.0     180.0