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: 14TU115 # Created Tue Apr 1 01:10:08 2025 # Orbit generated from Bernstein formalism # Fitting 18 observations of 18 # Arc: 4.16y # First observation: 2014/10/02 # Last observation: 2018/11/29 Preliminary a, adot, b, bdot, g, gdot: -0.000731 0.036859 0.000481 -0.015284 0.028279 0.000000 # Chi-squared of fit: 6.91 DOF: 30 RMS: 0.11 # Min/Max residuals: -0.25 0.21 # Exact a, adot, b, bdot, g, gdot: 1.972248E-05 3.565889E-02 -8.272880E-06 -1.471509E-02 2.776949E-02 -8.442524E-03 # Covariance matrix: 4.7152E-13 -2.9159E-13 -5.9508E-14 8.3388E-14 6.9440E-14 -1.3579E-12 -2.9159E-13 3.9633E-13 1.0369E-13 -1.5514E-13 1.4655E-13 2.5371E-12 -5.9508E-14 1.0369E-13 3.3456E-13 -1.6169E-13 3.5207E-14 7.7974E-13 8.3388E-14 -1.5514E-13 -1.6169E-13 1.2945E-13 -6.3588E-14 -1.1648E-12 6.9440E-14 1.4655E-13 3.5207E-14 -6.3588E-14 3.4641E-13 1.0511E-12 -1.3579E-12 2.5371E-12 7.7974E-13 -1.1648E-12 1.0511E-12 1.9047E-11 # lat0 lon0 xBary yBary zBary JD0 -7.258389 29.452695 0.354607 -0.118395 -0.930922 2456932.825218 # Heliocentric elements and errors Epoch: 2456930.5000 = 2014/09/30 Mean Anomaly: 359.32456 +/- 0.001 Argument of Peri: 225.48776 +/- 0.012 Long of Asc Node: 192.35956 +/- 0.000 Inclination: 23.55109 +/- 0.000 Eccentricity: 0.89806073 +/- 0.0001 Semi-Major Axis: 342.97236994 +/- 0.4387 Time of Perihelion: 2461283.2949 +/- 1.7 Perihelion: 34.96235199 +/- 0.0635 Aphelion: 650.98238790 +/- 0.8340 Period (y) 6351.8013 +/- 12.19 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 32.09418032 +/- 0.0007 Ecliptic Y 17.71931781 +/- 0.0004 Ecliptic Z -4.55008754 +/- 0.0001 Ecliptic XDOT -0.00261187 +/- 0.0000 Ecliptic YDOT 0.00256055 +/- 0.0000 Ecliptic ZDOT -0.00133389 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 36.94203474 +/- 0.0006 Geocenter to KBO 36.01074900 +/- 0.0008 # Hcoef: 7.74
The following table shows the complete astrometric record for 14TU115. 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 (14TU115) followed by the observatory code and reference code for the source of the astrometry.
2014 10 02.32444 01 59 48.844 +04 28 46.33 23.5i 14TU115 W84 C~55SO 2014 10 21.28184 01 58 22.328 +04 17 13.28 23.4i 14TU115 W84 C~55SO 2014 10 29.23879 01 57 44.393 +04 12 37.43 23.4r 14TU115 W84 C~55SO 2015 12 18.09791 02 03 24.576 +03 48 24.53 22.9i 14TU115 W84 C~55SO 2016 01 12.05160 02 02 56.230 +03 47 55.19 23.4r 14TU115 W84 C~55SO 2016 01 12.05720 02 02 56.208 +03 47 55.20 24.9g 14TU115 W84 C~55SO 2016 09 09.30325 02 19 05.187 +04 31 29.44 23.3r 14TU115 W84 C~55SO 2016 09 09.30463 02 19 05.198 +04 31 29.35 23.4i 14TU115 W84 C~55SO 2016 10 29.20198 02 15 42.018 +04 01 26.93 23.0i 14TU115 W84 C~55SO 2016 10 29.20336 02 15 42.005 +04 01 26.96 23.0r 14TU115 W84 C~55SO 2016 11 03.18726 02 15 17.756 +03 58 42.67 23.5g 14TU115 W84 C~55SO 2016 11 27.12189 02 13 29.113 +03 47 53.85 22.7i 14TU115 W84 C~55SO 2016 11 27.12326 02 13 29.100 +03 47 53.89 22.3z 14TU115 W84 C~55SO 2016 11 28.12171 02 13 25.087 +03 47 32.82 24.2g 14TU115 W84 C~55SO 2017 09 25.30855 02 27 25.932 +04 16 00.97 23.6r 14TU115 W84 C~55SO 2017 09 26.33480 02 27 22.167 +04 15 22.80 23.1i 14TU115 W84 C~55SO 2018 11 16.14400 02 32 47.778 +03 39 40.70 22.4i 14TU115 W84 C~55SO 2018 11 29.17895 02 31 48.200 +03 34 31.90 23.1r 14TU115 W84 C~55SO
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 -0.02
2 0.0519 -1454.20 -0.04 -199.97 0.07
3 0.0737 -2082.23 -0.07 -261.12 -0.07
4 1.2095 2187.30 -0.02 -3391.43 -0.14
5 1.2778 1779.05 0.18 -3271.91 0.04
6 1.2778 1778.74 -0.14 -3271.78 0.13
7 1.9383 16328.58 -0.22 -5814.63 0.18
8 1.9383 16328.71 -0.03 -5814.77 0.07
9 2.0750 12838.09 0.02 -6467.93 -0.14
10 2.0750 12837.92 -0.04 -6467.84 -0.04
11 2.0886 12439.08 0.16 -6497.54 -0.25
12 2.1541 10682.94 0.07 -6547.77 0.01
13 2.1541 10682.77 -0.01 -6547.66 0.11
14 2.1569 10618.92 -0.11 -6546.77 0.05
15 2.9815 23128.58 0.21 -9266.38 0.05
16 2.9843 23061.81 -0.02 -9283.19 -0.02
17 4.1227 26997.06 -0.10 -12997.80 -0.12
18 4.1584 26035.78 0.02 -12982.98 0.11
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.
14TU115 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 368.419 369.649 367.201 ecceobj 0.905 0.905 0.905 incobj 23.472 23.472 23.472 qmin 31.804 31.774 31.789 qmax 702.832 722.371 740.701 amean 321.830 325.970 341.174 amin 294.173 302.371 320.795 amax 368.891 378.625 387.688 emean 0.892 0.893 0.898 emin 0.878 0.879 0.887 emax 0.905 0.908 0.911 imean 22.933 22.975 23.093 imin 22.113 22.114 22.307 imax 24.139 24.142 24.155 excite_mean 0.973 0.975 0.980 fracstop 1.000 1.000 1.000 cjmean 2.815 2.816 2.815 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 238.1 237.2 235.1 kozaiamp 14.5 13.9 11.2