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: 15TQ363 # Created Tue May 20 01:10:40 2025 # Orbit generated from Bernstein formalism # Fitting 39 observations of 39 # Arc: 4.20y # First observation: 2015/10/10 # Last observation: 2019/12/22 Preliminary a, adot, b, bdot, g, gdot: 0.000195 0.025394 -0.000003 -0.010852 0.026941 0.000000 # Chi-squared of fit: 15.49 DOF: 72 RMS: 0.11 # Min/Max residuals: -0.32 0.28 # Exact a, adot, b, bdot, g, gdot: 1.554915E-05 2.499710E-02 -6.535815E-06 -1.071157E-02 2.563878E-02 -2.793377E-03 # Covariance matrix: 1.8475E-13 5.1735E-13 5.0120E-15 -2.4799E-13 4.9256E-13 5.5520E-12 5.1735E-13 5.7070E-12 5.3145E-14 -2.6083E-12 4.5243E-12 5.8557E-11 5.0120E-15 5.3145E-14 1.2436E-13 -5.4634E-14 4.1532E-14 5.4720E-13 -2.4799E-13 -2.6083E-12 -5.4634E-14 1.2058E-12 -2.0524E-12 -2.6838E-11 4.9256E-13 4.5243E-12 4.1532E-14 -2.0524E-12 3.9960E-12 4.5968E-11 5.5520E-12 5.8557E-11 5.4720E-13 -2.6838E-11 4.5968E-11 6.0265E-10 # lat0 lon0 xBary yBary zBary JD0 -15.035717 27.668868 0.191701 -0.255088 -0.950290 2457306.007012 # Heliocentric elements and errors Epoch: 2457300.5000 = 2015/10/05 Mean Anomaly: 329.72379 +/- 0.143 Argument of Peri: 256.85089 +/- 0.234 Long of Asc Node: 176.93119 +/- 0.001 Inclination: 27.31706 +/- 0.000 Eccentricity: 0.18384393 +/- 0.0007 Semi-Major Axis: 46.87642628 +/- 0.0178 Time of Perihelion: 2467159.4174 +/- 46.3 Perihelion: 38.25848004 +/- 0.0370 Aphelion: 55.49437251 +/- 0.0401 Period (y) 320.9519 +/- 0.18 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 34.31707331 +/- 0.0026 Ecliptic Y 17.77837713 +/- 0.0014 Ecliptic Z -10.11856975 +/- 0.0008 Ecliptic XDOT -0.00175912 +/- 0.0000 Ecliptic YDOT 0.00208597 +/- 0.0000 Ecliptic ZDOT -0.00102725 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 39.95144137 +/- 0.0023 Geocenter to KBO 39.00341844 +/- 0.0030 # Hcoef: 8.81
The following table shows the complete astrometric record for 15TQ363. 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 (15TQ363) followed by the observatory code and reference code for the source of the astrometry.
2015 10 10.506223 02 04 08.471 -03 25 06.01 24.4r 15TQ363 568 C~2TuW 2015 10 10.537679 02 04 08.332 -03 25 07.13 24.5r 15TQ363 568 C~2TuW 2015 10 10.539803 02 04 08.320 -03 25 07.23 24.3r 15TQ363 568 C~2TuW 2015 10 10.566184 02 04 08.198 -03 25 08.19 24.4r 15TQ363 568 C~2TuW 2015 10 10.600922 02 04 08.044 -03 25 09.47 24.4r 15TQ363 568 C~2TuW 2015 10 14.508049 02 03 50.298 -03 27 28.70 25.0g 15TQ363 568 C~2TuW 2015 10 14.539481 02 03 50.159 -03 27 29.90 24.9g 15TQ363 568 C~2TuW 2015 10 14.541609 02 03 50.147 -03 27 29.92 24.7g 15TQ363 568 C~2TuW 2015 10 14.602694 02 03 49.865 -03 27 32.05 25.0g 15TQ363 568 C~2TuW 2015 11 10.39281 02 01 44.86 -03 40 45.0 25.4i 15TQ363 T09 C~8sv7 2015 11 10.45724 02 01 44.56 -03 40 46.3 24.5i 15TQ363 T09 C~8sv7 2015 11 10.46548 02 01 44.52 -03 40 46.6 24.3i 15TQ363 T09 C~8sv7 2019 10 27.29340 02 28 02.03 -03 50 25.3 24.9r 15TQ363 T09 C~7uhu 2019 10 27.30457 02 28 01.97 -03 50 25.8 25.2r 15TQ363 T09 C~7uhu 2019 10 27.31576 02 28 01.90 -03 50 25.9 24.8r 15TQ363 T09 C~7uhu 2019 10 27.43225 02 28 01.34 -03 50 29.5 24.6i 15TQ363 T09 C~7uhu 2019 10 27.45055 02 28 01.25 -03 50 30.1 24.6i 15TQ363 T09 C~7uhu 2019 10 27.46883 02 28 01.15 -03 50 30.7 25.1i 15TQ363 T09 C~7uhu 2019 10 31.52139 02 27 41.64 -03 52 32.4 25.1z 15TQ363 T09 C~7uhu 2019 10 31.54341 02 27 41.54 -03 52 33.0 24.1z 15TQ363 T09 C~7uhu 2019 10 31.56158 02 27 41.45 -03 52 33.5 24.5z 15TQ363 T09 C~7uhu 2019 11 01.36052 02 27 37.61 -03 52 56.5 25.0g 15TQ363 T09 C~7uhu 2019 11 01.37174 02 27 37.54 -03 52 56.9 25.1g 15TQ363 T09 C~7uhu 2019 11 01.44090 02 27 37.23 -03 52 58.7 25.4g 15TQ363 T09 C~7uhu 2019 11 01.45227 02 27 37.17 -03 52 59.1 25.5g 15TQ363 T09 C~7uhu 2019 11 01.57590 02 27 36.55 -03 53 02.8 25.2g 15TQ363 T09 C~7uhu 2019 11 27.28028 02 25 37.54 -04 02 04.5 24.0z 15TQ363 T09 C~7uhu 2019 11 27.32500 02 25 37.34 -04 02 05.1 24.4i 15TQ363 T09 C~7uhu 2019 11 27.34715 02 25 37.25 -04 02 05.1 24.5i 15TQ363 T09 C~7uhu 2019 11 27.36927 02 25 37.15 -04 02 05.7 24.2i 15TQ363 T09 C~7uhu 2019 12 04.28879 02 25 09.09 -04 03 17.9 24.4z 15TQ363 T09 C~7uhu 2019 12 04.31090 02 25 09.00 -04 03 17.9 24.5z 15TQ363 T09 C~7uhu 2019 12 04.32949 02 25 08.92 -04 03 18.0 24.4z 15TQ363 T09 C~7uhu 2019 12 04.35162 02 25 08.81 -04 03 18.2 24.4z 15TQ363 T09 C~7uhu 2019 12 04.44386 02 25 08.47 -04 03 19.1 25.1i 15TQ363 T09 C~7uhu 2019 12 04.44735 02 25 08.45 -04 03 19.1 24.9i 15TQ363 T09 C~7uhu 2019 12 22.27977 02 24 10.25 -04 03 47.6 25.5r 15TQ363 T09 C~7uhu 2019 12 22.29747 02 24 10.18 -04 03 47.4 25.3r 15TQ363 T09 C~7uhu 2019 12 22.36536 02 24 10.03 -04 03 47.3 24.6i 15TQ363 T09 C~7uhu
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 -0.03 0.00 -0.01
2 0.0001 -2.34 0.05 -0.31 -0.02
3 0.0001 -2.55 0.01 -0.34 -0.03
4 0.0002 -4.59 -0.02 -0.60 -0.03
5 0.0003 -7.20 0.03 -0.98 -0.07
6 0.0110 -304.95 -0.07 -37.49 0.02
7 0.0110 -307.32 0.00 -37.88 -0.12
8 0.0110 -307.50 -0.01 -37.83 -0.05
9 0.0112 -312.20 0.03 -38.34 -0.06
10 0.0846 -2343.14 0.01 -120.54 0.04
11 0.0847 -2347.80 0.03 -120.17 0.23
12 0.0848 -2348.46 -0.04 -120.24 0.13
13 4.0460 19584.96 0.16 -9091.44 -0.11
14 4.0460 19583.93 0.03 -9091.58 -0.22
15 4.0460 19582.91 -0.11 -9091.29 0.09
16 4.0463 19573.70 0.02 -9091.63 0.07
17 4.0464 19572.21 -0.00 -9091.70 0.04
18 4.0464 19570.59 -0.16 -9091.72 0.06
19 4.0575 19251.28 -0.11 -9099.86 -0.04
20 4.0576 19249.66 0.02 -9099.88 -0.04
21 4.0576 19248.21 0.01 -9099.86 -0.01
22 4.0598 19185.72 0.01 -9100.57 0.01
23 4.0599 19184.58 -0.23 -9100.57 0.01
24 4.0601 19179.56 0.25 -9100.57 0.02
25 4.0601 19178.57 0.17 -9100.62 -0.03
26 4.0604 19168.48 -0.10 -9100.72 -0.12
27 4.1308 17295.27 0.09 -8962.96 -0.14
28 4.1309 17292.23 -0.01 -8962.44 -0.12
29 4.1310 17290.96 0.17 -8961.95 0.11
30 4.1310 17289.34 -0.01 -8961.97 -0.16
31 4.1500 16868.11 0.05 -8877.64 -0.09
32 4.1500 16866.85 0.08 -8877.15 0.10
33 4.1501 16865.68 0.01 -8876.81 0.18
34 4.1502 16864.06 -0.32 -8876.40 0.28
35 4.1504 16858.95 -0.04 -8875.40 -0.01
36 4.1504 16858.67 -0.12 -8875.29 0.05
37 4.1992 16029.03 0.11 -8587.01 0.00
38 4.1993 16028.12 -0.16 -8586.45 0.23
39 4.1995 16026.05 0.21 -8585.54 -0.15
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.
15TQ363 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 47.388 47.426 47.351 ecceobj 0.189 0.191 0.188 incobj 27.199 27.198 27.200 qmin 37.807 37.751 37.854 qmax 56.702 56.770 56.599 amean 47.016 47.052 46.980 amin 46.621 46.651 46.572 amax 47.493 47.516 47.447 emean 0.178 0.179 0.177 emin 0.162 0.164 0.161 emax 0.194 0.195 0.193 imean 27.012 27.017 27.007 imin 26.615 26.626 26.615 imax 27.358 27.372 27.356 excite_mean 0.488 0.488 0.487 fracstop 1.000 1.000 1.000 cjmean 2.831 2.831 2.831 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 190.7 191.1 190.3 kozaiamp 180.0 180.0 180.0