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: 15TN363 # Created Sun Apr 27 01:10:37 2025 # Orbit generated from Bernstein formalism # Fitting 30 observations of 30 # Arc: 4.22y # First observation: 2015/10/10 # Last observation: 2019/12/28 Preliminary a, adot, b, bdot, g, gdot: 0.000049 0.023890 -0.000004 -0.012204 0.026491 0.000000 # Chi-squared of fit: 17.15 DOF: 54 RMS: 0.13 # Min/Max residuals: -0.46 0.30 # Exact a, adot, b, bdot, g, gdot: 1.495424E-05 2.308888E-02 -7.897671E-06 -1.187295E-02 2.445834E-02 -6.412262E-03 # Covariance matrix: 2.2196E-13 1.8192E-12 6.8759E-15 -9.8786E-13 1.7021E-12 1.9727E-11 1.8192E-12 9.1085E-11 3.3516E-13 -4.8276E-11 8.2978E-11 9.6411E-10 6.8759E-15 3.3516E-13 1.8501E-13 -2.2234E-13 3.0717E-13 3.5449E-12 -9.8786E-13 -4.8276E-11 -2.2234E-13 2.5608E-11 -4.3956E-11 -5.1113E-10 1.7021E-12 8.2978E-11 3.0717E-13 -4.3956E-11 7.6027E-11 8.7769E-10 1.9727E-11 9.6411E-10 3.5449E-12 -5.1113E-10 8.7769E-10 1.0208E-08 # lat0 lon0 xBary yBary zBary JD0 -15.006171 27.336008 0.186031 -0.254880 -0.951473 2457306.004128 # Heliocentric elements and errors Epoch: 2457300.5000 = 2015/10/05 Mean Anomaly: 331.57879 +/- 0.191 Argument of Peri: 268.10678 +/- 0.378 Long of Asc Node: 180.95348 +/- 0.001 Inclination: 30.71491 +/- 0.001 Eccentricity: 0.35659402 +/- 0.0042 Semi-Major Axis: 56.88338824 +/- 0.2253 Time of Perihelion: 2469671.8394 +/- 38.8 Perihelion: 36.59911197 +/- 0.2798 Aphelion: 77.16766451 +/- 0.3882 Period (y) 429.0287 +/- 2.55 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 36.03795474 +/- 0.0125 Ecliptic Y 18.42156930 +/- 0.0065 Ecliptic Z -10.58661575 +/- 0.0038 Ecliptic XDOT -0.00211007 +/- 0.0000 Ecliptic YDOT 0.00181299 +/- 0.0000 Ecliptic ZDOT -0.00109783 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 41.83497138 +/- 0.0112 Geocenter to KBO 40.88585465 +/- 0.0146 # Hcoef: 9.23
The following table shows the complete astrometric record for 15TN363. 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 (15TN363) followed by the observatory code and reference code for the source of the astrometry.
2015 10 10.503339 02 02 53.652 -03 30 15.60 24.9r 15TN363 568 C~2TuW 2015 10 10.506223 02 02 53.639 -03 30 15.80 25.0r 15TN363 568 C~2TuW 2015 10 10.537679 02 02 53.504 -03 30 16.95 25.1r 15TN363 568 C~2TuW 2015 10 10.566184 02 02 53.381 -03 30 17.87 25.0r 15TN363 568 C~2TuW 2015 10 10.600922 02 02 53.227 -03 30 19.03 25.1r 15TN363 568 C~2TuW 2015 10 14.505211 02 02 36.278 -03 32 35.73 25.5g 15TN363 568 C~2TuW 2015 10 14.508049 02 02 36.271 -03 32 35.86 25.5g 15TN363 568 C~2TuW 2015 10 14.568007 02 02 36.001 -03 32 37.99 25.2g 15TN363 568 C~2TuW 2019 10 27.29340 02 25 55.25 -04 20 13.5 24.7r 15TN363 T09 C~7zoa 2019 10 27.30457 02 25 55.19 -04 20 14.2 25.4r 15TN363 T09 C~7zoa 2019 10 27.31576 02 25 55.13 -04 20 14.0 25.6r 15TN363 T09 C~7zoa 2019 10 27.43225 02 25 54.58 -04 20 17.4 25.2i 15TN363 T09 C~7zoa 2019 10 27.45055 02 25 54.52 -04 20 18.1 24.8i 15TN363 T09 C~7zob 2019 10 27.46883 02 25 54.43 -04 20 18.6 25.3i 15TN363 T09 C~7zob 2019 10 31.49932 02 25 35.65 -04 22 19.8 25.6z 15TN363 T09 C~7zob 2019 10 31.51788 02 25 35.57 -04 22 20.5 24.8z 15TN363 T09 C~7zob 2019 10 31.52139 02 25 35.55 -04 22 20.6 25.2z 15TN363 T09 C~7zob 2019 10 31.53991 02 25 35.49 -04 22 21.1 25.6z 15TN363 T09 C~7zob 2019 11 01.36052 02 25 31.67 -04 22 44.5 25.9g 15TN363 T09 C~7zob 2019 11 01.44090 02 25 31.27 -04 22 46.9 26.2g 15TN363 T09 C~7zob 2019 11 01.57590 02 25 30.64 -04 22 50.9 25.6g 15TN363 T09 C~7zob 2019 11 27.34361 02 23 35.72 -04 31 55.8 24.9i 15TN363 T09 C~7zob 2019 11 27.36574 02 23 35.63 -04 31 56.2 25.0i 15TN363 T09 C~7zob 2019 11 29.34620 02 23 27.66 -04 32 20.9 25.4r 15TN363 T09 C~7zob 2019 11 29.36038 02 23 27.61 -04 32 21.1 25.6r 15TN363 T09 C~7zob 2019 12 22.27977 02 22 12.46 -04 33 47.6 26.2r 15TN363 T09 C~7zob 2019 12 22.29498 02 22 12.41 -04 33 47.7 25.4r 15TN363 T09 C~7zob 2019 12 28.23064 02 21 59.20 -04 33 10.9 26.4g 15TN363 T09 C~7zob 2019 12 28.28244 02 21 59.09 -04 33 10.4 25.9g 15TN363 T09 C~7zob 2019 12 28.32010 02 21 59.01 -04 33 10.4 25.7g 15TN363 T09 C~7zob
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 0.05
2 0.0000 -0.25 -0.05 -0.12 -0.04
3 0.0001 -2.55 -0.02 -0.48 -0.09
4 0.0002 -4.60 0.03 -0.69 -0.01
5 0.0003 -7.17 0.02 -0.96 0.07
6 0.0110 -292.88 -0.02 -38.98 0.06
7 0.0110 -293.02 0.05 -39.06 0.00
8 0.0111 -297.56 -0.01 -39.63 -0.05
9 4.0460 18303.93 0.04 -10218.68 -0.17
10 4.0460 18302.84 -0.20 -10219.01 -0.46
11 4.0460 18302.06 -0.10 -10218.50 0.10
12 4.0463 18293.08 -0.03 -10218.68 0.30
13 4.0464 18291.98 0.29 -10219.01 0.04
14 4.0464 18290.54 0.27 -10218.99 0.12
15 4.0575 17982.13 -0.19 -10230.22 0.11
16 4.0575 17980.75 -0.13 -10230.44 -0.08
17 4.0575 17980.43 -0.18 -10230.42 -0.06
18 4.0576 17979.41 0.22 -10230.56 -0.18
19 4.0598 17917.14 0.18 -10231.68 0.12
20 4.0601 17910.64 -0.12 -10231.75 0.13
21 4.0604 17900.32 -0.05 -10232.06 -0.07
22 4.1310 16086.18 0.09 -10117.14 0.18
23 4.1310 16084.77 0.08 -10117.02 0.07
24 4.1365 15963.78 -0.15 -10096.84 -0.01
25 4.1365 15963.01 -0.06 -10096.75 -0.08
26 4.1993 14875.55 0.07 -9769.63 0.13
27 4.1993 14874.81 -0.15 -9769.46 0.04
28 4.2155 14702.48 0.10 -9663.31 -0.04
29 4.2157 14701.12 0.09 -9662.24 0.05
30 4.2158 14699.99 -0.06 -9661.81 -0.23
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.
15TN363 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 57.578 58.146 57.041 ecceobj 0.361 0.371 0.351 incobj 30.573 30.570 30.577 qmin 35.912 35.834 36.221 qmax 78.883 80.273 77.698 amean 56.942 57.582 56.513 amin 56.249 56.977 55.907 amax 57.779 58.397 57.301 emean 0.344 0.357 0.341 emin 0.320 0.338 0.328 emax 0.367 0.376 0.358 imean 30.701 30.639 30.481 imin 30.032 30.120 30.077 imax 31.470 31.215 30.873 excite_mean 0.616 0.623 0.611 fracstop 1.000 1.000 1.000 cjmean 2.749 2.745 2.753 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 198.8 197.4 181.5 kozaiamp 180.0 179.9 179.9