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: 14RQ86 # Created Wed Apr 24 01:16:08 2024 # Orbit generated from Bernstein formalism # Fitting 9 observations of 9 # Arc: 3.11y # First observation: 2014/09/04 # Last observation: 2017/10/13 Preliminary a, adot, b, bdot, g, gdot: 0.000221 0.024901 -0.000089 -0.007257 0.027190 0.000000 # Chi-squared of fit: 6.39 DOF: 12 RMS: 0.15 # Min/Max residuals: -0.43 0.22 # Exact a, adot, b, bdot, g, gdot: 1.615241E-05 2.499786E-02 -4.074544E-06 -7.247460E-03 2.605656E-02 -4.163648E-04 # Covariance matrix: 6.5945E-13 -7.2841E-13 -6.5047E-14 1.2664E-13 9.1523E-13 -8.5383E-12 -7.2841E-13 3.0315E-12 1.4695E-13 -7.3117E-13 -1.2701E-12 4.2997E-11 -6.5047E-14 1.4695E-13 4.9911E-13 -2.0101E-13 -3.7997E-13 2.3239E-12 1.2664E-13 -7.3117E-13 -2.0101E-13 2.7724E-13 2.1142E-13 -1.0643E-11 9.1523E-13 -1.2701E-12 -3.7997E-13 2.1142E-13 6.2931E-12 -2.1734E-11 -8.5383E-12 4.2997E-11 2.3239E-12 -1.0643E-11 -2.1734E-11 6.3096E-10 # lat0 lon0 xBary yBary zBary JD0 -27.835930 -55.286701 -0.601967 -0.379307 -0.718598 2456904.582048 # Heliocentric elements and errors Epoch: 2456900.5000 = 2014/08/31 Mean Anomaly: 193.07914 +/- 3.067 Argument of Peri: 49.59298 +/- 3.068 Long of Asc Node: 67.27545 +/- 0.002 Inclination: 31.18384 +/- 0.000 Eccentricity: 0.01650533 +/- 0.0005 Semi-Major Axis: 38.48167114 +/- 0.0159 Time of Perihelion: 2497328.9814 +/- 742.3 Perihelion: 37.84651862 +/- 0.0243 Aphelion: 39.11682365 +/- 0.0246 Period (y) 238.7202 +/- 0.15 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 20.28196378 +/- 0.0019 Ecliptic Y -28.22011626 +/- 0.0027 Ecliptic Z -17.92043219 +/- 0.0017 Ecliptic XDOT 0.00192979 +/- 0.0000 Ecliptic YDOT 0.00181545 +/- 0.0000 Ecliptic ZDOT -0.00065285 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 39.10082999 +/- 0.0023 Geocenter to KBO 38.37804435 +/- 0.0037 # Hcoef: 7.89
The following table shows the complete astrometric record for 14RQ86. 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 (14RQ86) followed by the observatory code and reference code for the source of the astrometry.
2014 09 04.08127 21 05 12.751 -45 51 10.05 23.5i 14RQ86 W84 C~52Tw 2014 09 24.06447 21 03 29.539 -45 47 46.25 24.1r 14RQ86 W84 C~52Tw 2014 09 27.04400 21 03 17.545 -45 46 47.20 23.9r 14RQ86 W84 C~52Tw 2016 09 03.23568 21 22 16.334 -45 37 40.04 23.7i 14RQ86 W84 C~52Tw 2016 09 03.23705 21 22 16.336 -45 37 40.16 23.9r 14RQ86 W84 C~52Tw 2017 09 12.09599 21 29 52.060 -45 27 21.74 23.7g 14RQ86 W84 C~52Tw 2017 09 23.06717 21 28 53.469 -45 25 44.60 24.4r 14RQ86 W84 C~52Tw 2017 10 13.07937 21 27 37.697 -45 18 18.69 23.9r 14RQ86 W84 C~52Tw 2017 10 13.08347 21 27 37.689 -45 18 18.75 23.2z 14RQ86 W84 C~52Tw
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 -0.20 0.00 -0.07
2 0.0547 -955.40 -0.03 541.03 -0.03
3 0.0629 -1055.38 0.22 637.11 0.09
4 1.9991 10328.27 0.00 -2997.91 0.10
5 1.9991 10328.25 0.06 -2998.03 -0.05
6 3.0226 15002.56 -0.14 -4281.52 -0.43
7 3.0527 14471.61 0.04 -3947.02 0.19
8 3.1075 13908.88 0.05 -3221.33 0.19
9 3.1075 13908.78 0.00 -3221.35 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.
14RQ86 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 38.602 38.652 38.552 ecceobj 0.014 0.012 0.015 incobj 31.231 31.232 31.231 qmin 37.585 37.679 37.475 qmax 39.753 39.832 39.832 amean 38.653 38.713 38.617 amin 38.383 38.439 38.349 amax 38.937 38.985 38.896 emean 0.011 0.013 0.016 emin 0.000 0.003 0.006 emax 0.022 0.022 0.025 imean 29.689 29.695 29.690 imin 29.293 29.297 29.286 imax 30.136 30.150 30.155 excite_mean 0.495 0.496 0.496 fracstop 1.000 1.000 1.000 cjmean 2.749 2.749 2.748 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 230.8 180.2 181.8 kozaiamp 179.8 180.0 179.9