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: 13VX71 # Created Wed Dec 4 02:09:47 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 17 observations of 17 # Arc: 5.05y # First observation: 2013/11/08 # Last observation: 2018/11/26 # Chi-squared of fit: 4.53 DOF: 28 RMS: 0.09 # Min/Max residuals: -0.17 0.17 # Exact a, adot, b, bdot, g, gdot: 1.653794E-05 2.584044E-02 1.087280E-06 1.232889E-03 2.518857E-02 1.806009E-04 # Covariance matrix: 2.0727E-13 -1.4955E-13 1.2603E-15 -4.2534E-15 1.2737E-14 -8.7138E-13 -1.4955E-13 4.2854E-13 -5.3526E-15 1.8089E-14 -5.9521E-14 3.7064E-12 1.2603E-15 -5.3526E-15 1.8548E-13 -5.6719E-14 -5.9488E-16 -5.1155E-14 -4.2534E-15 1.8089E-14 -5.6719E-14 3.3006E-14 -4.0919E-16 1.7097E-13 1.2737E-14 -5.9521E-14 -5.9488E-16 -4.0919E-16 5.3795E-13 -1.3939E-13 -8.7138E-13 3.7064E-12 -5.1155E-14 1.7097E-13 -1.3939E-13 3.4988E-11 # lat0 lon0 xBary yBary zBary JD0 -1.156558 6.999806 -0.617330 -0.015472 -0.773245 2456604.668336 # Heliocentric elements and errors Epoch: 2456604.5000 = 2013/11/08 Mean Anomaly: 12.73878 +/- 0.131 Argument of Peri: 322.49770 +/- 0.157 Long of Asc Node: 30.27259 +/- 0.003 Inclination: 2.97517 +/- 0.000 Eccentricity: 0.08331162 +/- 0.0001 Semi-Major Axis: 44.04002958 +/- 0.0067 Time of Perihelion: 2452827.0817 +/- 39.0 Perihelion: 40.37098340 +/- 0.0089 Aphelion: 47.70907576 +/- 0.0097 Period (y) 292.2669 +/- 0.07 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 40.08828675 +/- 0.0011 Ecliptic Y 5.54717915 +/- 0.0001 Ecliptic Z -0.80134110 +/- 0.0000 Ecliptic XDOT -0.00032629 +/- 0.0000 Ecliptic YDOT 0.00278878 +/- 0.0000 Ecliptic ZDOT 0.00013373 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 40.47817975 +/- 0.0011 Geocenter to KBO 39.70058800 +/- 0.0012 # Hcoef: 7.23
The following table shows the complete astrometric record for 13VX71. 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 (13VX71) followed by the observatory code and reference code for the source of the astrometry.
2013 11 08.167558 00 27 32.30 +01 42 57.9 23.2r 13VX71 W84 C~55OH 2013 11 08.174826 00 27 32.27 +01 42 57.9 22.9r 13VX71 W84 C~55OH 2013 11 08.176204 00 27 32.27 +01 42 57.8 23.0i 13VX71 W84 C~55OH 2013 11 22.08391 00 26 51.261 +01 39 03.80 24.2g 13VX71 W84 C~55OH 2013 11 22.094803 00 26 51.23 +01 39 03.4 23.4r 13VX71 W84 C~55OH 2013 11 22.096204 00 26 51.23 +01 39 03.6 23.0i 13VX71 W84 C~55OH 2013 11 23.105880 00 26 48.80 +01 38 50.2 22.9i 13VX71 W84 C~55OH 2014 11 15.10387 00 32 29.861 +02 19 44.09 22.7z 13VX71 W84 C~55OH 2015 10 17.16393 00 39 43.912 +03 09 56.07 23.3r 13VX71 W84 C~55OH 2016 09 09.28605 00 47 51.494 +04 05 54.54 23.7i 13VX71 W84 C~55OH 2016 09 09.286910 00 47 51.48 +04 05 54.5 23.5r 13VX71 W84 C~55OH 2016 09 10.316690 00 47 47.28 +04 05 28.1 22.5z 13VX71 W84 C~55OH 2016 11 18.083553 00 42 56.17 +03 35 55.6 23.5r 13VX71 W84 C~55OH 2016 11 18.12288 00 42 56.051 +03 35 54.83 22.8i 13VX71 W84 C~55OH 2016 11 18.12426 00 42 56.061 +03 35 55.08 22.9z 13VX71 W84 C~55OH 2017 10 20.16907 00 50 09.333 +04 25 37.50 23.0z 13VX71 W84 C~55OH 2018 11 26.07524 00 53 10.977 +04 50 22.09 24.6g 13VX71 W84 C~55OH
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 -0.09
2 0.0000 0.00 -0.10 0.00 0.06
3 0.0000 0.00 -0.03 0.00 -0.01
4 0.0381 0.00 0.05 0.00 0.08
5 0.0381 0.00 -0.01 0.00 -0.17
6 0.0381 0.00 0.05 0.00 0.05
7 0.0409 0.00 0.03 0.00 -0.06
8 1.0183 0.00 0.17 0.00 0.07
9 1.9384 0.00 -0.00 0.00 0.13
10 2.8367 0.00 0.04 0.00 -0.01
11 2.8367 0.00 -0.11 0.00 -0.03
12 2.8396 0.00 0.12 0.00 0.08
13 3.0278 0.00 -0.16 0.00 -0.02
14 3.0279 0.00 -0.11 0.00 -0.11
15 3.0279 0.00 0.11 0.00 0.17
16 3.9480 0.00 -0.04 0.00 -0.11
17 5.0483 0.00 0.10 0.00 -0.01
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.
13VX71 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.324 44.324 44.324 ecceobj 0.090 0.090 0.090 incobj 2.968 2.968 2.968 qmin 39.463 39.467 39.461 qmax 48.910 48.884 48.878 amean 44.060 44.061 44.061 amin 43.715 43.701 43.717 amax 44.445 44.453 44.431 emean 0.084 0.084 0.084 emin 0.067 0.066 0.067 emax 0.101 0.101 0.101 imean 2.312 2.312 2.312 imin 1.444 1.444 1.444 imax 3.107 3.107 3.107 excite_mean 0.093 0.093 0.093 fracstop 1.000 1.000 1.000 cjmean 3.092 3.092 3.092 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 183.4 183.2 183.4 kozaiamp 180.0 179.9 180.0