Orbit Fit and Astrometric record for 15TR361

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: 15TR361   
# Created Sat Dec  4 02:13:34 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     30 observations of     30
# Arc:   5.00y
# First observation: 2013/09/10
#  Last observation: 2018/09/11
# Chi-squared of fit:    10.88 DOF:     54 RMS:  0.11
# Min/Max residuals:    -0.26    0.31
# Exact a, adot, b, bdot, g, gdot:
  1.777160E-05  3.618937E-02 -1.135099E-07 -1.034747E-03  3.176404E-02  3.008051E-03
# Covariance matrix:
  7.5502E-13 -4.4730E-13 -8.7108E-15  8.7747E-15  8.2441E-15 -1.7379E-12
 -4.4730E-13  4.5748E-13  1.5168E-14 -1.3358E-14  2.9499E-13  2.3432E-12
 -8.7108E-15  1.5168E-14  3.0686E-13 -9.4023E-14  1.7154E-14  8.9613E-14
  8.7747E-15 -1.3358E-14 -9.4023E-14  3.4476E-14 -1.3273E-14 -7.7338E-14
  8.2441E-15  2.9499E-13  1.7154E-14 -1.3273E-14  6.2904E-13  1.9978E-12
 -1.7379E-12  2.3432E-12  8.9613E-14 -7.7338E-14  1.9978E-12  1.3281E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   -6.309849   13.551877    0.443012   -0.099382   -0.899702  2456545.847208
# Heliocentric elements and errors
Epoch:              2456546.5000  =  2013/09/11
Mean Anomaly:           38.72032 +/-     0.041
Argument of Peri:      207.63844 +/-     0.054
Long of Asc Node:      118.67560 +/-     0.003
Inclination:             6.37547 +/-     0.000
Eccentricity:         0.09906187 +/-    0.0001
Semi-Major Axis:     34.93446173 +/-    0.0031
Time of Perihelion: 2448434.7234 +/-       8.6
Perihelion:          31.47378871 +/-    0.0040
Aphelion:            38.39513475 +/-    0.0044
Period (y)              206.4854 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           31.40356729 +/-    0.0008
Ecliptic Y            7.11682491 +/-    0.0002
Ecliptic Z           -3.46007738 +/-    0.0001
Ecliptic XDOT        -0.00049611 +/-    0.0000
Ecliptic YDOT         0.00308937 +/-    0.0000
Ecliptic ZDOT        -0.00011701 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   32.38522664 +/-    0.0007
Geocenter to KBO     31.48211845 +/-    0.0008
# Hcoef:  8.19

The following table shows the complete astrometric record for 15TR361. 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 (15TR361) followed by the observatory code and reference code for the source of the astrometry.

2013 09  10.34643  00 59 39.996  -00 28 09.59  23.2r 15TR361   W84  C~52UG      
2014 10  02.29821  01 05 29.392  +00 03 09.56  23.1i 15TR361   W84  C~52UG      
2014 10  21.25242  01 03 42.300  -00 07 51.58  22.6r 15TR361   W84  C~52UG      
2014 10  21.25516  01 03 42.265  -00 07 51.45  22.8i 15TR361   W84  C~52UG      
2014 11  18.12425  01 01 23.735  -00 19 39.95  21.9z 15TR361   W84  C~52UG      
2015 10  10.306232 01 12 27.532  +00 43 02.39  23.2r 15TR361   568  C~2TuU      
2015 10  10.333304 01 12 27.376  +00 43 01.45  23.1r 15TR361   568  C~2TuU      
2015 10  10.376138 01 12 27.128  +00 42 59.90  23.2r 15TR361   568  C~2TuU      
2015 10  10.408313 01 12 26.941  +00 42 58.80  23.2r 15TR361   568  C~2TuU      
2015 10  14.286105 01 12 04.878  +00 40 43.02  24.1g 15TR361   568  C~2TuU      
2015 10  14.313316 01 12 04.721  +00 40 42.02  24.1g 15TR361   568  C~2TuU      
2015 10  14.356062 01 12 04.474  +00 40 40.54  24.1g 15TR361   568  C~2TuU      
2015 10  14.398879 01 12 04.225  +00 40 39.10  24.0g 15TR361   568  C~2TuU      
2015 10  17.16961  01 11 48.463  +00 39 04.41  23.7r 15TR361   W84  C~52UG      
2016 08  16.38713  01 24 05.387  +01 57 19.20  23.6i 15TR361   W84  C~52UG      
2016 08  16.38851  01 24 05.380  +01 57 19.02  22.9z 15TR361   W84  C~52UG      
2016 10  29.16286  01 18 16.420  +01 16 34.15  23.1i 15TR361   W84  C~52UG      
2016 10  29.18349  01 18 16.326  +01 16 33.44  24.4g 15TR361   W84  C~52UG      
2016 11  03.18278  01 17 49.473  +01 14 11.90  23.5r 15TR361   W84  C~52UG      
2016 11  05.17551  01 17 39.069  +01 13 18.58  23.2i 15TR361   W84  C~52UG      
2016 11  08.17469  01 17 23.779  +01 12 02.49  22.3z 15TR361   W84  C~52UG      
2017 08  22.39195  01 31 22.044  +02 38 02.10  23.6r 15TR361   W84  C~52UG      
2017 08  22.39332  01 31 22.039  +02 38 02.14  22.7i 15TR361   W84  C~52UG      
2017 08  22.39470  01 31 22.036  +02 38 02.09  24.0g 15TR361   W84  C~52UG      
2017 08  28.33629  01 31 04.370  +02 35 16.04  22.7i 15TR361   W84  C~52UG      
2017 08  28.33766  01 31 04.374  +02 35 15.90  23.7r 15TR361   W84  C~52UG      
2017 08  28.33902  01 31 04.371  +02 35 15.84  22.7z 15TR361   W84  C~52UG      
2017 08  28.37514  01 31 04.234  +02 35 14.61  24.4g 15TR361   W84  C~52UG      
2018 09  11.35717  01 37 44.246  +03 11 13.26  23.0r 15TR361   W84  C~52UG      
2018 09  11.35854  01 37 44.246  +03 11 13.45  22.9i 15TR361   W84  C~52UG      

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    -0.06
     2   1.0594      0.00    -0.01       0.00    -0.11
     3   1.1113      0.00     0.31       0.00    -0.20
     4   1.1113      0.00     0.02       0.00     0.02
     5   1.1876      0.00    -0.26       0.00    -0.14
     6   2.0807      0.00    -0.02       0.00     0.11
     7   2.0807      0.00    -0.02       0.00     0.13
     8   2.0808      0.00    -0.02       0.00     0.10
     9   2.0809      0.00    -0.03       0.00     0.14
    10   2.0916      0.00    -0.02       0.00     0.18
    11   2.0916      0.00    -0.02       0.00     0.12
    12   2.0917      0.00    -0.01       0.00     0.11
    13   2.0919      0.00    -0.02       0.00     0.15
    14   2.0994      0.00    -0.10       0.00    -0.08
    15   2.9323      0.00     0.04       0.00     0.03
    16   2.9324      0.00    -0.02       0.00    -0.12
    17   3.1343      0.00    -0.09       0.00     0.00
    18   3.1344      0.00     0.22       0.00    -0.10
    19   3.1481      0.00    -0.00       0.00     0.03
    20   3.1535      0.00     0.03       0.00    -0.11
    21   3.1617      0.00     0.12       0.00    -0.00
    22   3.9481      0.00     0.04       0.00    -0.02
    23   3.9481      0.00     0.03       0.00     0.06
    24   3.9481      0.00     0.04       0.00     0.04
    25   3.9644      0.00    -0.09       0.00     0.06
    26   3.9644      0.00     0.04       0.00    -0.04
    27   3.9644      0.00     0.06       0.00    -0.06
    28   3.9645      0.00    -0.18       0.00    -0.23
    29   5.0021      0.00    -0.01       0.00    -0.09
    30   5.0021      0.00     0.08       0.00     0.14

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.

15TR361    quality flag:3

Type:           5:4E      5:4E      5:4E

axisobj        35.108    35.108    35.108
ecceobj         0.104     0.104     0.104
incobj          6.373     6.373     6.373
qmin           30.728    30.727    30.729
qmax           39.380    39.381    39.380
amean          34.943    34.943    34.943
amin           34.674    34.674    34.673
amax           35.236    35.236    35.236
emean           0.099     0.099     0.099
emin            0.079     0.080     0.079
emax            0.119     0.119     0.119
imean           4.998     4.998     4.998
imin            3.157     3.157     3.157
imax            6.795     6.793     6.796
excite_mean     0.133     0.133     0.133
fracstop        1.000     1.000     1.000
cjmean          2.998     2.998     2.998

libcent 0       179.9     179.8     180.0
libamp  0        29.2      29.2      29.2
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       180.0     180.1     180.2
kozaiamp        180.0     180.0     179.9