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: 15QV33 # Created Tue May 7 01:16:41 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 11 observations of 11 # Arc: 8.15y # First observation: 2014/10/03 # Last observation: 2022/11/28 # Chi-squared of fit: 5.35 DOF: 16 RMS: 0.12 # Min/Max residuals: -0.23 0.28 # Exact a, adot, b, bdot, g, gdot: 1.829569E-05 2.948277E-02 -6.061521E-06 -1.004860E-02 2.710095E-02 -4.004560E-03 # Covariance matrix: 6.0487E-13 -3.3841E-13 -1.0901E-13 1.0242E-13 -1.3474E-13 -1.1060E-12 -3.3841E-13 4.1646E-13 1.2256E-13 -1.3393E-13 5.1531E-13 1.4093E-12 -1.0901E-13 1.2256E-13 3.5510E-13 -9.2117E-14 9.8612E-14 4.5258E-13 1.0242E-13 -1.3393E-13 -9.2117E-14 5.8513E-14 -1.5351E-13 -4.7574E-13 -1.3474E-13 5.1531E-13 9.8612E-14 -1.5351E-13 1.3011E-12 1.5380E-12 -1.1060E-12 1.4093E-12 4.5258E-13 -4.7574E-13 1.5380E-12 5.0380E-12 # lat0 lon0 xBary yBary zBary JD0 -16.696461 19.338394 0.168389 -0.283883 -0.947025 2456933.763058 # Heliocentric elements and errors Epoch: 2456934.5000 = 2014/10/04 Mean Anomaly: 342.99776 +/- 0.009 Argument of Peri: 255.43510 +/- 0.015 Long of Asc Node: 159.78080 +/- 0.000 Inclination: 24.73768 +/- 0.000 Eccentricity: 0.31436492 +/- 0.0001 Semi-Major Axis: 53.01587177 +/- 0.0125 Time of Perihelion: 2463593.5303 +/- 47.5 Perihelion: 36.34954168 +/- 0.0113 Aphelion: 69.68220185 +/- 0.0180 Period (y) 386.0265 +/- 0.14 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 34.33521816 +/- 0.0014 Ecliptic Y 11.87427770 +/- 0.0005 Ecliptic Z -10.60140799 +/- 0.0004 Ecliptic XDOT -0.00163174 +/- 0.0000 Ecliptic YDOT 0.00258088 +/- 0.0000 Ecliptic ZDOT -0.00085601 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 37.84577193 +/- 0.0013 Geocenter to KBO 36.89920105 +/- 0.0016 # Hcoef: 8.21
The following table shows the complete astrometric record for 15QV33. 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 (15QV33) followed by the observatory code and reference code for the source of the astrometry.
2014 10 03.26228 01 36 36.744 -07 53 55.85 23.4i 15QV33 W84 C~55Wc 2015 08 18.40912 01 46 20.830 -07 15 13.62 24.0r 15QV33 W84 C~55Wc 2015 10 17.18514 01 42 44.333 -07 55 40.59 24.0r 15QV33 W84 C~55Wc 2015 11 15.18103 01 40 27.035 -08 07 47.26 23.1i 15QV33 W84 C~55Wc 2015 11 15.18241 01 40 27.041 -08 07 47.13 24.3r 15QV33 W84 C~55Wc 2017 11 16.12483 01 54 51.659 -07 54 06.86 24.0r 15QV33 W84 C~55Wc 2017 12 22.11777 01 52 51.852 -07 54 38.71 23.5r 15QV33 W84 C~55Wc 2018 11 30.11232 02 01 13.526 -07 48 37.02 24.3r 15QV33 W84 C~55Wc 2022 11 28.107850 02 31 07.125 -07 11 57.01 24.1G 15QV33 G37 C~67A0 2022 11 28.159110 02 31 06.882 -07 11 57.17 15QV33 G37 C~67A0 2022 11 28.211110 02 31 06.639 -07 11 57.68 15QV33 G37 C~67A0
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 -0.23 0.00 -0.05
2 0.8738 0.00 -0.01 0.00 0.19
3 1.0374 0.00 0.03 0.00 0.09
4 1.1168 0.00 0.09 0.00 -0.14
5 1.1168 0.00 0.28 0.00 0.01
6 3.1208 0.00 -0.00 0.00 -0.15
7 3.2193 0.00 -0.06 0.00 0.11
8 4.1584 0.00 -0.07 0.00 -0.08
9 8.1529 0.00 0.12 0.00 -0.13
10 8.1530 0.00 -0.02 0.00 0.13
11 8.1532 0.00 -0.11 0.00 0.04
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.
15QV33 quality flag:3 Type: 7:3EEEE 7:3EEEE 7:3EEEE axisobj 53.576 53.575 53.576 ecceobj 0.320 0.320 0.320 incobj 24.663 24.663 24.663 qmin 32.568 32.611 32.519 qmax 74.193 74.371 74.355 amean 52.968 52.968 52.968 amin 52.337 52.342 52.356 amax 53.747 53.798 53.731 emean 0.340 0.339 0.341 emin 0.284 0.284 0.284 emax 0.383 0.384 0.385 imean 22.223 22.278 22.174 imin 20.121 20.191 20.047 imax 24.767 24.773 24.761 excite_mean 0.510 0.510 0.510 fracstop 1.000 1.000 1.000 cjmean 2.875 2.875 2.875 libcent 0 180.6 180.2 180.4 libamp 0 101.8 101.4 101.7 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 215.4 213.9 217.1 kozaiamp 180.0 180.0 180.0