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: 15TL361 # Created Tue Jan 21 02:10:42 2025 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 26 observations of 26 # Arc: 5.15y # First observation: 2013/10/04 # Last observation: 2018/11/28 # Chi-squared of fit: 4.67 DOF: 46 RMS: 0.07 # Min/Max residuals: -0.22 0.16 # Exact a, adot, b, bdot, g, gdot: 1.741807E-05 3.108967E-02 1.475677E-06 3.116231E-03 2.799178E-02 -1.239522E-03 # Covariance matrix: 5.4856E-13 -4.0047E-13 3.5728E-14 -4.0258E-14 1.1709E-13 -2.1744E-12 -4.0047E-13 3.7899E-13 -3.9053E-14 4.1929E-14 -5.1021E-14 2.2597E-12 3.5728E-14 -3.9053E-14 2.0802E-13 -6.4750E-14 -1.0003E-15 -2.4853E-13 -4.0258E-14 4.1929E-14 -6.4750E-14 2.9511E-14 -6.0236E-15 2.6731E-13 1.1709E-13 -5.1021E-14 -1.0003E-15 -6.0236E-15 2.6195E-13 -3.4251E-13 -2.1744E-12 2.2597E-12 -2.4853E-13 2.6731E-13 -3.4251E-13 1.4408E-11 # lat0 lon0 xBary yBary zBary JD0 -9.223749 15.668326 0.085211 -0.159658 -0.983845 2456569.684758 # Heliocentric elements and errors Epoch: 2456570.5000 = 2013/10/05 Mean Anomaly: 347.52682 +/- 0.036 Argument of Peri: 319.78169 +/- 0.052 Long of Asc Node: 72.93626 +/- 0.001 Inclination: 10.61757 +/- 0.000 Eccentricity: 0.16646984 +/- 0.0001 Semi-Major Axis: 43.74564140 +/- 0.0047 Time of Perihelion: 2460232.1368 +/- 19.6 Perihelion: 36.46331165 +/- 0.0048 Aphelion: 51.02797116 +/- 0.0061 Period (y) 289.3413 +/- 0.05 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 34.93462018 +/- 0.0006 Ecliptic Y 9.71355398 +/- 0.0002 Ecliptic Z -5.72631181 +/- 0.0001 Ecliptic XDOT -0.00089559 +/- 0.0000 Ecliptic YDOT 0.00290737 +/- 0.0000 Ecliptic ZDOT 0.00032043 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 36.70931042 +/- 0.0006 Geocenter to KBO 35.72484205 +/- 0.0007 # Hcoef: 7.46
The following table shows the complete astrometric record for 15TL361. 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 (15TL361) followed by the observatory code and reference code for the source of the astrometry.
2013 10 04.18398 01 11 53.950 -02 21 04.51 24.4g 15TL361 W84 C~4yYX 2013 12 21.09990 01 06 58.431 -02 37 29.60 22.8i 15TL361 W84 C~4yYX 2013 12 21.10128 01 06 58.432 -02 37 29.75 22.7z 15TL361 W84 C~4yYX 2014 10 23.23867 01 16 37.040 -01 39 00.72 22.3i 15TL361 W84 C~4yYX 2014 10 28.24596 01 16 12.003 -01 41 01.81 23.0r 15TL361 W84 C~4yYX 2014 11 15.09832 01 14 49.997 -01 46 34.76 23.3r 15TL361 W84 C~4yYX 2014 11 17.11347 01 14 41.740 -01 47 01.14 23.3z 15TL361 W84 C~4yYX 2015 09 04.30689 01 26 45.524 -00 23 30.32 21.7z 15TL361 W84 C~4yYX 2015 09 04.30826 01 26 45.512 -00 23 30.31 22.4i 15TL361 W84 C~4yYX 2015 10 10.297506 01 24 03.585 -00 41 53.76 23.0r 15TL361 568 C~2TuU 2015 10 10.371897 01 24 03.202 -00 41 55.97 22.8r 15TL361 568 C~2TuU 2015 10 10.401858 01 24 03.046 -00 41 56.86 22.9r 15TL361 568 C~2TuU 2015 10 14.277557 01 23 43.176 -00 43 49.33 24.0g 15TL361 568 C~2TuU 2015 10 14.280405 01 23 43.164 -00 43 49.43 24.0g 15TL361 568 C~2TuU 2015 10 14.381660 01 23 42.634 -00 43 52.29 23.7g 15TL361 568 C~2TuU 2015 11 07.13160 01 21 43.924 -00 53 29.82 23.6r 15TL361 W84 C~4yYX 2016 08 30.34715 01 33 16.649 +00 29 20.12 23.9g 15TL361 W84 C~4yYX 2016 10 23.18451 01 29 13.011 +00 02 58.10 22.6r 15TL361 W84 C~4yYX 2016 10 23.18588 01 29 13.003 +00 02 58.26 23.5g 15TL361 W84 C~4yYX 2016 10 28.15912 01 28 47.687 +00 00 54.33 22.8i 15TL361 W84 C~4yYX 2017 08 22.40576 01 39 55.515 +01 23 33.95 22.3z 15TL361 W84 C~4yYX 2017 09 14.30539 01 38 42.073 +01 13 18.85 22.7z 15TL361 W84 C~4yYX 2018 11 15.08698 01 40 02.713 +01 37 17.93 22.9i 15TL361 W84 C~4yYX 2018 11 15.08835 01 40 02.714 +01 37 17.98 22.6i 15TL361 W84 C~4yYX 2018 11 28.03494 01 39 08.244 +01 34 24.04 23.1r 15TL361 W84 C~4yYX 2018 11 28.03770 01 39 08.228 +01 34 23.98 24.0g 15TL361 W84 C~4yYX
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 0.01 0.00 0.07
2 0.2133 0.00 -0.06 0.00 0.08
3 0.2133 0.00 -0.02 0.00 -0.08
4 1.0515 0.00 0.16 0.00 -0.17
5 1.0652 0.00 0.08 0.00 -0.01
6 1.1141 0.00 -0.01 0.00 -0.04
7 1.1196 0.00 0.00 0.00 0.01
8 1.9168 0.00 0.10 0.00 -0.01
9 1.9168 0.00 -0.01 0.00 0.04
10 2.0154 0.00 -0.07 0.00 0.06
11 2.0156 0.00 -0.03 0.00 0.05
12 2.0157 0.00 -0.03 0.00 0.04
13 2.0263 0.00 -0.08 0.00 0.05
14 2.0263 0.00 -0.04 0.00 0.03
15 2.0266 0.00 -0.06 0.00 0.06
16 2.0916 0.00 0.10 0.00 -0.09
17 2.9053 0.00 -0.13 0.00 0.07
18 3.0527 0.00 0.08 0.00 -0.09
19 3.0527 0.00 0.07 0.00 0.11
20 3.0663 0.00 -0.04 0.00 -0.02
21 3.8829 0.00 0.05 0.00 -0.22
22 3.9456 0.00 0.05 0.00 0.05
23 5.1140 0.00 0.01 0.00 0.01
24 5.1140 0.00 0.12 0.00 0.09
25 5.1495 0.00 -0.02 0.00 -0.00
26 5.1495 0.00 -0.10 0.00 -0.03
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.
15TL361 quality flag:2 Type: 7:4EEE 7:4EEE SCATNEAR axisobj 44.018 44.018 44.019 ecceobj 0.171 0.171 0.171 incobj 10.621 10.621 10.621 qmin 34.737 34.737 34.737 qmax 53.275 53.275 53.276 amean 43.727 43.727 43.727 amin 43.326 43.321 43.326 amax 44.212 44.212 44.212 emean 0.148 0.149 0.147 emin 0.070 0.070 0.069 emax 0.205 0.205 0.205 imean 8.773 9.028 8.832 imin 6.082 6.080 6.084 imax 11.922 11.930 11.919 excite_mean 0.216 0.221 0.217 fracstop 1.000 1.000 1.000 cjmean 3.042 3.040 3.042 libcent 0 183.8 181.1 -180.0 libamp 0 173.6 176.1 -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 271.7 288.9 270.4 kozaiamp 54.4 70.4 53.2