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 Fri Nov 22 02:10:30 2024 # 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 30.731 30.730 30.731 qmax 39.374 39.375 39.374 amean 34.943 34.943 34.943 amin 34.675 34.675 34.675 amax 35.239 35.239 35.240 emean 0.099 0.099 0.099 emin 0.079 0.079 0.080 emax 0.119 0.119 0.119 imean 4.998 4.998 4.998 imin 3.157 3.157 3.157 imax 6.797 6.796 6.799 excite_mean 0.133 0.133 0.133 fracstop 1.000 1.000 1.000 cjmean 2.998 2.998 2.998 libcent 0 179.6 179.5 179.7 libamp 0 29.3 29.3 29.3 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 180.1 180.0 180.0 kozaiamp 180.0 180.0 180.0