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: 14ST349 # Created Sun Dec 22 02:10:02 2024 # Orbit generated from Bernstein formalism # Fitting 9 observations of 9 # Arc: 1.08y # First observation: 2014/09/18 # Last observation: 2015/10/16 Preliminary a, adot, b, bdot, g, gdot: -0.000010 0.015001 0.000002 0.000243 0.018867 0.000000 # Chi-squared of fit: 14.32 DOF: 12 RMS: 0.22 # Min/Max residuals: -0.52 0.39 # Exact a, adot, b, bdot, g, gdot: 1.367088E-05 1.506923E-02 2.723670E-06 2.385754E-04 1.903695E-02 -1.635228E-03 # Covariance matrix: 4.7795E-13 1.4500E-12 -5.5471E-14 1.5911E-13 1.3589E-12 1.7392E-10 1.4500E-12 1.2705E-10 -1.8932E-12 1.2388E-11 5.9073E-11 1.3541E-08 -5.5471E-14 -1.8932E-12 2.7915E-13 -4.6000E-13 -9.6503E-13 -2.0163E-10 1.5911E-13 1.2388E-11 -4.6000E-13 2.1412E-12 5.7745E-12 1.3305E-09 1.3589E-12 5.9073E-11 -9.6503E-13 5.7745E-12 2.9127E-11 6.3120E-09 1.7392E-10 1.3541E-08 -2.0163E-10 1.3305E-09 6.3120E-09 1.4544E-06 # lat0 lon0 xBary yBary zBary JD0 -13.953014 -9.438502 -0.074946 -0.242128 -0.975075 2456918.587488 # Heliocentric elements and errors Epoch: 2456910.5000 = 2014/09/10 Mean Anomaly: 222.72219 +/- 19.049 Argument of Peri: 62.99984 +/- 18.429 Long of Asc Node: 76.69909 +/- 0.074 Inclination: 13.72541 +/- 0.001 Eccentricity: 0.17982397 +/- 0.0351 Semi-Major Axis: 46.75329287 +/- 0.6021 Time of Perihelion: 2501436.5930 +/- 6118.3 Perihelion: 38.34593031 +/- 1.7131 Aphelion: 55.16065543 +/- 1.7875 Period (y) 319.6881 +/- 6.18 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 51.29045997 +/- 0.0143 Ecliptic Y -8.44881950 +/- 0.0024 Ecliptic Z -12.66607996 +/- 0.0036 Ecliptic XDOT 0.00013372 +/- 0.0002 Ecliptic YDOT 0.00216942 +/- 0.0000 Ecliptic ZDOT 0.00009012 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 53.50255523 +/- 0.0137 Geocenter to KBO 52.52941151 +/- 0.0149 # Hcoef: 7.13
The following table shows the complete astrometric record for 14ST349. 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 (14ST349) followed by the observatory code and reference code for the source of the astrometry.
2014 09 18.08671 23 48 01.001 -16 31 51.84 24.3r 14ST349 807 C~1x8l 2014 09 18.16786 23 48 00.688 -16 31 52.82 14ST349 807 C~1x8l 2014 09 18.32322 23 48 00.108 -16 31 56.68 14ST349 807 C~1x8l 2014 10 22.12109 23 46 00.437 -16 40 57.55 14ST349 304 C~1x8l 2014 10 22.19336 23 46 00.221 -16 40 58.09 14ST349 304 C~1x8l 2014 11 19.15172 23 44 53.934 -16 41 27.30 14ST349 304 C~1x8l 2014 11 21.02405 23 44 51.155 -16 41 14.34 14ST349 304 C~1x8l 2015 10 16.27360 23 49 34.800 -16 18 06.00 14ST349 304 C~1x8l 2015 10 16.29722 23 49 34.750 -16 18 07.00 14ST349 304 C~1x8l
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 -0.24 0.00 -0.52
2 0.0002 -4.51 0.06 0.95 0.28
3 0.0006 -13.70 0.07 0.84 -0.15
4 0.0932 -1804.88 -0.01 209.19 0.09
5 0.0934 -1807.93 0.16 209.96 0.08
6 0.1699 -2690.15 0.08 570.36 0.17
7 0.1751 -2721.40 -0.11 598.41 0.12
8 1.0765 1569.64 -0.05 199.56 0.39
9 1.0766 1568.57 0.04 198.95 -0.45
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.
14ST349 quality flag:2 Type: SCATEXTD SCATNEAR SCATEXTD axisobj 47.091 50.915 46.669 ecceobj 0.173 0.323 0.144 incobj 13.731 13.734 13.729 qmin 37.846 32.907 38.885 qmax 56.488 68.959 54.524 amean 46.939 49.916 46.529 amin 46.540 48.349 46.146 amax 47.420 51.396 46.970 emean 0.177 0.322 0.148 emin 0.163 0.292 0.136 emax 0.192 0.347 0.162 imean 12.375 11.802 12.338 imin 11.823 10.666 11.873 imax 12.835 13.464 12.756 excite_mean 0.278 0.382 0.260 fracstop 1.000 1.000 1.000 cjmean 3.042 2.990 3.049 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 175.0 169.1 177.8 kozaiamp 180.0 179.9 180.0