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: 15HX10 # Created Fri Nov 22 02:10:22 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 30 observations of 30 # Arc: 4.16y # First observation: 2015/04/09 # Last observation: 2019/06/08 # Chi-squared of fit: 20.96 DOF: 54 RMS: 0.15 # Min/Max residuals: -0.30 0.33 # Exact a, adot, b, bdot, g, gdot: 2.987167E-05 1.934127E-01 1.787753E-05 1.126047E-01 1.017697E-01 -1.802028E-02 # Covariance matrix: 1.0472E-13 -6.0078E-14 1.2755E-14 -4.4510E-14 1.5854E-13 -7.8715E-14 -6.0078E-14 1.5920E-13 -2.7168E-14 8.9051E-14 2.8916E-14 1.3872E-13 1.2755E-14 -2.7168E-14 7.5490E-14 -4.3968E-14 2.9872E-14 -3.5711E-14 -4.4510E-14 8.9051E-14 -4.3968E-14 9.2157E-14 -1.1554E-13 1.2144E-13 1.5854E-13 2.8916E-14 2.9872E-14 -1.1554E-13 1.0913E-12 -2.4118E-13 -7.8715E-14 1.3872E-13 -3.5711E-14 1.2144E-13 -2.4118E-13 2.0438E-13 # lat0 lon0 xBary yBary zBary JD0 -10.775863 -154.731359 0.109314 -0.185435 -0.975055 2457121.794386 # Heliocentric elements and errors Epoch: 2457122.5000 = 2015/04/10 Mean Anomaly: 351.65740 +/- 12.019 Argument of Peri: 359.05222 +/- 0.000 Long of Asc Node: 220.96579 +/- 0.000 Inclination: 31.58759 +/- 0.000 Eccentricity: 0.34225075 +/- 0.0001 Semi-Major Axis: 16.22398227 +/- 0.0026 Time of Perihelion: 2457675.6383 +/- 796.9 Perihelion: 10.67131224 +/- 0.0023 Aphelion: 21.77665230 +/- 0.0039 Period (y) 65.3498 +/- 0.02 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -9.67654465 +/- 0.0001 Ecliptic Y -4.44523210 +/- 0.0001 Ecliptic Z -1.83698356 +/- 0.0000 Ecliptic XDOT 0.00213634 +/- 0.0000 Ecliptic YDOT -0.00474980 +/- 0.0000 Ecliptic ZDOT 0.00306664 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 10.80604899 +/- 0.0001 Geocenter to KBO 9.82617230 +/- 0.0002 # Hcoef: 12.10
The following table shows the complete astrometric record for 15HX10. 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 (15HX10) followed by the observatory code and reference code for the source of the astrometry.
2015 04 09.293608 13 17 01.78 -19 46 33.1 15HX10 309 C~3xrU 2015 04 09.294641 13 17 01.76 -19 46 33.0 15HX10 309 C~3xrU 2015 04 18.17804 13 14 51.01 -19 24 05.8 22.8V 15HX10 W84 C~1Qgk 2015 04 18.18128 13 14 50.96 -19 24 05.3 15HX10 W84 C~1Qgk 2015 04 18.18776 13 14 50.86 -19 24 04.2 15HX10 W84 C~1Qgk 2015 04 18.19100 13 14 50.81 -19 24 03.7 15HX10 W84 C~1Qgk 2015 04 21.170278 13 14 07.69 -19 16 12.2 15HX10 W84 C~3xrU 2015 04 21.173519 13 14 07.65 -19 16 11.9 15HX10 W84 C~3xrU 2015 04 21.176748 13 14 07.58 -19 16 11.4 15HX10 W84 C~3xrU 2015 04 21.179988 13 14 07.54 -19 16 10.9 15HX10 W84 C~3xrU 2015 04 21.183241 13 14 07.50 -19 16 10.4 15HX10 W84 C~3xrU 2015 04 22.16909 13 13 53.40 -19 13 32.3 22.8V 15HX10 W84 C~1Qgk 2015 04 22.17883 13 13 53.26 -19 13 30.8 15HX10 W84 C~1Qgk 2015 04 22.18209 13 13 53.21 -19 13 30.3 15HX10 W84 C~1Qgk 2015 04 23.33299 13 13 36.83 -19 10 26.4 21.5R 15HX10 291 C~1Qgk 2015 04 23.35181 13 13 36.59 -19 10 22.8 21.1R 15HX10 291 C~1Qgk 2015 04 23.37065 13 13 36.28 -19 10 19.8 22.1R 15HX10 291 C~1Qgk 2016 03 06.282628 14 17 03.53 -18 32 43.0 15HX10 W84 C~5Pvj 2016 03 06.284686 14 17 03.51 -18 32 42.8 15HX10 W84 C~5Pvj 2016 05 01.11296 14 05 34.47 -16 38 37.4 22.8V 15HX10 W84 C~3xrU 2016 05 01.11612 14 05 34.42 -16 38 36.9 15HX10 W84 C~3xrU 2016 05 01.11932 14 05 34.37 -16 38 36.4 15HX10 W84 C~3xrU 2016 05 01.12249 14 05 34.33 -16 38 35.9 15HX10 W84 C~3xrU 2016 05 01.12568 14 05 34.28 -16 38 35.4 15HX10 W84 C~3xrU 2017 04 28.396999 14 59 35.12 -13 43 18.8 15HX10 568 C~5Pvj 2017 04 28.398216 14 59 35.11 -13 43 18.6 15HX10 568 C~5Pvj 2017 04 28.399431 14 59 35.10 -13 43 18.4 15HX10 568 C~5Pvj 2019 06 01.291654 16 30 14.97 -05 04 01.6 15HX10 W84 C~5Pvj 2019 06 08.192399 16 28 29.89 -04 54 32.6 15HX10 W84 C~5Pvj 2019 06 08.193844 16 28 29.88 -04 54 32.5 15HX10 W84 C~5Pvj
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 0.00 0.00 -0.09
2 0.0000 0.00 -0.06 0.00 -0.14
3 0.0243 0.00 0.17 0.00 -0.03
4 0.0243 0.00 0.15 0.00 -0.04
5 0.0244 0.00 0.10 0.00 0.05
6 0.0244 0.00 0.07 0.00 0.04
7 0.0325 0.00 -0.07 0.00 0.01
8 0.0325 0.00 0.04 0.00 -0.21
9 0.0325 0.00 -0.29 0.00 -0.22
10 0.0325 0.00 -0.18 0.00 -0.24
11 0.0326 0.00 -0.06 0.00 -0.26
12 0.0353 0.00 0.03 0.00 0.11
13 0.0353 0.00 0.06 0.00 0.05
14 0.0353 0.00 0.03 0.00 0.03
15 0.0384 0.00 -0.15 0.00 -0.30
16 0.0385 0.00 0.33 0.00 0.25
17 0.0385 0.00 -0.24 0.00 0.20
18 0.9089 0.00 0.01 0.00 -0.11
19 0.9089 0.00 -0.09 0.00 -0.06
20 1.0618 0.00 0.03 0.00 0.17
21 1.0618 0.00 0.00 0.00 0.19
22 1.0618 0.00 -0.02 0.00 0.21
23 1.0618 0.00 0.10 0.00 0.24
24 1.0618 0.00 0.07 0.00 0.26
25 2.0537 0.00 -0.25 0.00 0.01
26 2.0537 0.00 -0.12 0.00 0.04
27 2.0537 0.00 0.01 0.00 0.08
28 4.1451 0.00 -0.00 0.00 -0.20
29 4.1640 0.00 -0.01 0.00 -0.05
30 4.1640 0.00 0.17 0.00 -0.06
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.
15HX10 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 16.142 16.142 16.142 ecceobj 0.336 0.336 0.336 incobj 31.555 31.555 31.555 qmin 9.608 10.525 10.171 qmax 25.630 22.049 25.739 amean 17.349 16.145 16.486 amin 16.079 15.710 16.079 amax 18.133 16.385 18.169 emean 0.364 0.341 0.355 emin 0.298 0.325 0.335 emax 0.433 0.347 0.417 imean 30.598 32.317 32.040 imin 28.567 32.145 30.478 imax 32.434 32.434 32.433 excite_mean 0.626 0.634 0.639 fracstop 0.046 0.003 0.004 cjmean 2.955 3.037 3.009 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 174.5 30.6 31.0 kozaiamp 179.6 179.6 179.6