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: 15TP363 # Created Sun Apr 27 01:10:37 2025 # Orbit generated from Bernstein formalism # Fitting 19 observations of 19 # Arc: 30.91d # First observation: 2015/10/10 # Last observation: 2015/11/10 Preliminary a, adot, b, bdot, g, gdot: -0.000002 0.016677 0.000000 0.012233 0.021731 0.000000 # Chi-squared of fit: 4.70 DOF: 32 RMS: 0.09 # Min/Max residuals: -0.21 0.18 # Exact a, adot, b, bdot, g, gdot: 1.187218E-05 1.633314E-02 8.823071E-06 1.226075E-02 2.170428E-02 5.449122E-03 # Covariance matrix: 3.4754E-13 2.1405E-10 9.0658E-14 -4.5333E-12 3.5997E-11 7.5905E-10 2.1405E-10 2.8939E-07 1.2680E-10 -7.3741E-09 4.6229E-08 -1.9906E-07 9.0658E-14 1.2680E-10 1.8149E-13 -5.2142E-12 2.0163E-11 -1.4696E-10 -4.5333E-12 -7.3741E-09 -5.2142E-12 2.7970E-10 -1.1545E-09 1.9602E-08 3.5997E-11 4.6229E-08 2.0163E-11 -1.1545E-09 7.4233E-09 -9.5431E-09 7.5905E-10 -1.9906E-07 -1.4696E-10 1.9602E-08 -9.5431E-09 1.3715E-05 # lat0 lon0 xBary yBary zBary JD0 -14.784825 27.732897 0.192800 -0.250870 -0.951190 2457306.007012 # Heliocentric elements and errors Epoch: 2457300.5000 = 2015/10/05 Mean Anomaly: 49.25891 +/- 10.193 Argument of Peri: 256.99774 +/- 9.460 Long of Asc Node: 45.98616 +/- 0.583 Inclination: 39.14883 +/- 0.857 Eccentricity: 0.28364265 +/- 0.1869 Semi-Major Axis: 53.73720365 +/- 6.2239 Time of Perihelion: 2437612.8764 +/- 2212.9 Perihelion: 38.49504091 +/- 10.9875 Aphelion: 68.97936639 +/- 12.8326 Period (y) 393.9316 +/- 68.44 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 40.38760962 +/- 0.1565 Ecliptic Y 21.01741756 +/- 0.0823 Ecliptic Z -11.75719246 +/- 0.0467 Ecliptic XDOT -0.00002280 +/- 0.0004 Ecliptic YDOT 0.00231004 +/- 0.0002 Ecliptic ZDOT 0.00132004 +/- 0.0001 # Distances at JD0 (AU) Heliocenter to KBO 47.02257358 +/- 0.1399 Geocenter to KBO 46.07385671 +/- 0.1829 # Hcoef: 7.06
The following table shows the complete astrometric record for 15TP363. 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 (15TP363) followed by the observatory code and reference code for the source of the astrometry.
2015 10 10.506223 02 04 01.112 -03 09 42.29 23.8r 15TP363 568 C~2TuW 2015 10 10.518114 02 04 01.061 -03 09 42.52 23.6r 15TP363 568 C~2TuW 2015 10 10.537679 02 04 00.977 -03 09 42.93 23.7r 15TP363 568 C~2TuW 2015 10 10.539803 02 04 00.966 -03 09 42.97 23.7r 15TP363 568 C~2TuW 2015 10 10.566184 02 04 00.852 -03 09 43.48 23.8r 15TP363 568 C~2TuW 2015 10 10.577109 02 04 00.808 -03 09 43.74 23.8r 15TP363 568 C~2TuW 2015 10 10.600922 02 04 00.704 -03 09 44.21 23.8r 15TP363 568 C~2TuW 2015 10 14.508049 02 03 43.917 -03 11 01.78 24.4g 15TP363 568 C~2TuW 2015 10 14.539481 02 03 43.778 -03 11 02.34 24.7g 15TP363 568 C~2TuW 2015 10 14.568007 02 03 43.654 -03 11 02.89 24.6g 15TP363 568 C~2TuW 2015 10 14.602694 02 03 43.503 -03 11 03.55 24.6g 15TP363 568 C~2TuW 2015 10 20.45130 02 03 17.87 -03 12 51.5 23.1y 15TP363 T09 C~8cQp 2015 10 20.49007 02 03 17.71 -03 12 52.4 23.0y 15TP363 T09 C~8cQp 2015 10 20.50917 02 03 17.62 -03 12 52.5 23.0y 15TP363 T09 C~8cQp 2015 10 20.52266 02 03 17.55 -03 12 53.0 22.8y 15TP363 T09 C~8cQp 2015 11 10.39281 02 01 45.64 -03 17 39.8 23.7i 15TP363 T09 C~8cQp 2015 11 10.39623 02 01 45.64 -03 17 40.1 23.4i 15TP363 T09 C~8cQp 2015 11 10.40586 02 01 45.59 -03 17 39.9 23.6i 15TP363 T09 C~8cQp 2015 11 10.41689 02 01 45.56 -03 17 40.3 23.5i 15TP363 T09 C~8cQp
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 0.02
2 0.0000 -0.80 0.02 0.05 0.03
3 0.0001 -2.12 0.02 0.11 0.02
4 0.0001 -2.29 -0.01 0.13 0.03
5 0.0002 -4.06 0.00 0.26 0.05
6 0.0002 -4.77 0.03 0.25 -0.00
7 0.0003 -6.40 0.01 0.36 0.02
8 0.0110 -269.02 -0.06 16.42 -0.11
9 0.0110 -271.16 -0.05 16.63 -0.06
10 0.0111 -273.10 -0.03 16.77 -0.07
11 0.0112 -275.44 -0.01 16.95 -0.07
12 0.0272 -672.75 -0.03 51.25 0.17
13 0.0273 -675.31 0.10 51.25 -0.11
14 0.0274 -676.61 0.12 51.63 0.14
15 0.0274 -677.77 -0.11 51.54 -0.06
16 0.0846 -2067.06 -0.12 268.02 0.18
17 0.0846 -2067.16 -0.00 267.74 -0.15
18 0.0846 -2067.79 -0.02 268.19 0.17
19 0.0846 -2068.36 0.13 267.97 -0.21
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.
15TP363 quality flag:0 Type: ERR2LARGE ERR2LARGE ERR2LARGE axisobj 0.000 0.000 0.000 ecceobj -1.000 -1.000 -1.000 incobj -1.000 -1.000 -1.000 qmin 0.000 0.000 0.000 qmax 0.000 0.000 0.000 amean 0.000 0.000 0.000 amin 0.000 0.000 0.000 amax 0.000 0.000 0.000 emean 0.000 0.000 0.000 emin 0.000 0.000 0.000 emax 0.000 0.000 0.000 imean 0.000 0.000 0.000 imin 0.000 0.000 0.000 imax 0.000 0.000 0.000 excite_mean 0.000 0.000 0.000 fracstop 0.000 0.000 0.000 cjmean 0.000 0.000 0.000 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 0.0 0.0 0.0 kozaiamp 0.0 0.0 0.0