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: 14TA115 # Created Fri Nov 22 02:10:04 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 14 observations of 14 # Arc: 8.15y # First observation: 2013/09/10 # Last observation: 2021/11/05 # Chi-squared of fit: 7.33 DOF: 22 RMS: 0.13 # Min/Max residuals: -0.30 0.22 # Exact a, adot, b, bdot, g, gdot: 1.581871E-05 2.707636E-02 1.123834E-06 1.579263E-03 2.611385E-02 2.450516E-03 # Covariance matrix: 4.9936E-13 -2.3222E-13 1.4681E-14 -1.3557E-14 2.2015E-13 -1.0008E-12 -2.3222E-13 9.3924E-13 -3.4076E-14 5.3475E-14 1.2970E-12 3.9278E-12 1.4681E-14 -3.4076E-14 1.9243E-13 -3.4132E-14 -3.3845E-14 -1.4857E-13 -1.3557E-14 5.3475E-14 -3.4132E-14 1.5038E-14 7.0990E-14 2.2767E-13 2.2015E-13 1.2970E-12 -3.3845E-14 7.0990E-14 2.7569E-12 5.2048E-12 -1.0008E-12 3.9278E-12 -1.4857E-13 2.2767E-13 5.2048E-12 1.6725E-11 # lat0 lon0 xBary yBary zBary JD0 -6.244723 23.343631 0.590149 -0.088754 -0.812048 2456545.871828 # Heliocentric elements and errors Epoch: 2456546.5000 = 2013/09/11 Mean Anomaly: 38.82853 +/- 0.072 Argument of Peri: 250.31213 +/- 0.096 Long of Asc Node: 84.64711 +/- 0.002 Inclination: 6.90613 +/- 0.000 Eccentricity: 0.10673357 +/- 0.0001 Semi-Major Axis: 42.42280990 +/- 0.0087 Time of Perihelion: 2445661.0585 +/- 20.5 Perihelion: 37.89487178 +/- 0.0091 Aphelion: 46.95074802 +/- 0.0107 Period (y) 276.3168 +/- 0.08 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 35.93401763 +/- 0.0022 Ecliptic Y 14.86857635 +/- 0.0010 Ecliptic Z -4.16540928 +/- 0.0003 Ecliptic XDOT -0.00088000 +/- 0.0000 Ecliptic YDOT 0.00271357 +/- 0.0000 Ecliptic ZDOT 0.00013678 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 39.11106270 +/- 0.0021 Geocenter to KBO 38.29382306 +/- 0.0024 # Hcoef: 7.90
The following table shows the complete astrometric record for 14TA115. 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 (14TA115) followed by the observatory code and reference code for the source of the astrometry.
2013 09 10.37105 01 35 38.607 +03 15 39.19 24.5g 14TA115 W84 C~52UG 2013 09 10.37398 01 35 38.568 +03 15 39.27 23.3r 14TA115 W84 C~52UG 2014 10 02.28973 01 39 47.865 +03 44 38.24 24.2g 14TA115 W84 C~52UG 2014 10 02.29109 01 39 47.846 +03 44 38.10 24.3r 14TA115 W84 C~52UG 2014 10 02.32026 01 39 47.711 +03 44 37.23 23.3i 14TA115 W84 C~52UG 2014 10 21.26080 01 38 17.037 +03 35 48.22 24.1r 14TA115 W84 C~52UG 2014 10 28.21863 01 37 43.243 +03 32 47.78 23.4i 14TA115 W84 C~52UG 2014 10 29.23311 01 37 38.366 +03 32 22.44 24.4g 14TA115 W84 C~52UG 2014 11 15.05397 01 36 21.585 +03 26 12.93 23.6r 14TA115 W84 C~52UG 2015 11 18.16871 01 41 47.241 +04 04 08.71 23.7i 14TA115 W84 C~52UG 2016 11 03.16885 01 48 28.680 +04 47 36.38 23.5r 14TA115 W84 C~52UG 2021 11 05.268050 02 16 17.947 +07 54 18.01 23.4G 14TA115 G37 C~5BUi 2021 11 05.323520 02 16 17.670 +07 54 16.70 14TA115 G37 C~5BUi 2021 11 05.382640 02 16 17.382 +07 54 15.39 14TA115 G37 C~5BUi
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 0.01
2 0.0000 0.00 -0.30 0.00 0.17
3 1.0593 0.00 0.22 0.00 0.13
4 1.0593 0.00 0.03 0.00 0.03
5 1.0594 0.00 0.05 0.00 -0.00
6 1.1113 0.00 0.09 0.00 -0.17
7 1.1303 0.00 -0.19 0.00 -0.11
8 1.1331 0.00 -0.17 0.00 -0.15
9 1.1791 0.00 0.18 0.00 -0.01
10 2.1870 0.00 0.15 0.00 0.08
11 3.1480 0.00 -0.18 0.00 0.02
12 8.1530 0.00 -0.02 0.00 0.02
13 8.1532 0.00 -0.04 0.00 -0.03
14 8.1534 0.00 0.05 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.
14TA115 quality flag:3 Type: 5:3EE 5:3EE 5:3EE axisobj 42.675 42.675 42.675 ecceobj 0.113 0.113 0.113 incobj 6.909 6.909 6.909 qmin 37.151 37.150 37.152 qmax 47.757 47.757 47.756 amean 42.330 42.330 42.330 amin 41.955 41.955 41.955 amax 42.737 42.737 42.737 emean 0.097 0.097 0.097 emin 0.076 0.076 0.076 emax 0.120 0.120 0.120 imean 5.429 5.429 5.429 imin 4.482 4.482 4.483 imax 6.550 6.549 6.551 excite_mean 0.136 0.136 0.136 fracstop 1.000 1.000 1.000 cjmean 3.060 3.060 3.060 libcent 0 179.5 179.5 179.5 libamp 0 72.7 72.7 72.6 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 180.9 180.8 181.0 kozaiamp 180.0 179.9 180.0