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: 14SW349 # Created Sun Nov 24 02:09:57 2024 # Orbit generated from Bernstein formalism # Fitting 11 observations of 11 # Arc: 1.07y # First observation: 2014/09/19 # Last observation: 2015/10/16 Preliminary a, adot, b, bdot, g, gdot: -0.000088 0.019565 0.000013 0.003872 0.019835 0.000000 # Chi-squared of fit: 26.73 DOF: 16 RMS: 0.28 # Min/Max residuals: -0.58 0.56 # Exact a, adot, b, bdot, g, gdot: 1.539373E-05 1.988010E-02 2.781490E-06 3.938578E-03 2.035200E-02 8.568005E-03 # Covariance matrix: 4.3319E-13 1.8232E-12 -1.0184E-13 6.6459E-13 1.4141E-12 1.3056E-10 1.8232E-12 2.5520E-11 -1.0929E-12 7.8086E-12 1.4835E-11 1.5239E-09 -1.0184E-13 -1.0929E-12 2.6782E-13 -6.0961E-13 -6.9523E-13 -6.7923E-11 6.6459E-13 7.8086E-12 -6.0961E-13 3.3249E-12 4.7133E-12 4.8259E-10 1.4141E-12 1.4835E-11 -6.9523E-13 4.7133E-12 9.5648E-12 9.2330E-10 1.3056E-10 1.5239E-09 -6.7923E-11 4.8259E-10 9.2330E-10 9.4219E-08 # lat0 lon0 xBary yBary zBary JD0 -10.547648 -22.737046 -0.319862 -0.174697 -0.938946 2456919.564708 # Heliocentric elements and errors Epoch: 2456910.5000 = 2014/09/10 Mean Anomaly: 16.21770 +/- 0.743 Argument of Peri: 251.39573 +/- 0.775 Long of Asc Node: 19.75076 +/- 0.007 Inclination: 15.23111 +/- 0.002 Eccentricity: 0.58975435 +/- 0.0170 Semi-Major Axis: 95.57571426 +/- 2.9165 Time of Perihelion: 2441535.8018 +/- 31.1 Perihelion: 39.20952057 +/- 2.0201 Aphelion: 151.94190795 +/- 4.9139 Period (y) 934.3929 +/- 42.77 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 45.55352258 +/- 0.0068 Ecliptic Y -18.74207174 +/- 0.0029 Ecliptic Z -8.99422898 +/- 0.0014 Ecliptic XDOT 0.00216349 +/- 0.0000 Ecliptic YDOT 0.00198655 +/- 0.0000 Ecliptic ZDOT 0.00031001 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 50.07279529 +/- 0.0062 Geocenter to KBO 49.13522657 +/- 0.0075 # Hcoef: 7.49
The following table shows the complete astrometric record for 14SW349. 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 (14SW349) followed by the observatory code and reference code for the source of the astrometry.
2014 09 19.06393 22 52 19.488 -18 36 28.89 24.5r 14SW349 807 C~1x8l 2014 09 19.13597 22 52 19.204 -18 36 30.07 14SW349 807 C~1x8l 2014 09 19.21418 22 52 18.898 -18 36 31.40 14SW349 807 C~1x8l 2014 10 22.13159 22 50 31.470 -18 41 21.17 14SW349 304 C~1x8l 2014 10 23.08761 22 50 29.076 -18 41 21.24 14SW349 304 C~1x8l 2014 10 25.03891 22 50 24.580 -18 41 21.71 14SW349 304 C~1x8l 2014 11 19.06924 22 49 49.379 -18 38 27.53 24.4r 14SW349 304 C~1x8l 2014 11 20.06789 22 49 48.958 -18 38 13.86 14SW349 304 C~1x8l 2015 05 22.38678 23 00 24.689 -17 23 14.15 14SW349 304 C~1x8l 2015 10 16.24153 22 54 47.779 -18 02 40.52 14SW349 304 C~1x8l 2015 10 16.26745 22 54 47.725 -18 02 40.57 14SW349 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 0.01 0.00 0.06
2 0.0002 -4.18 -0.03 0.47 0.04
3 0.0004 -8.71 -0.07 0.93 -0.06
4 0.0905 -1529.09 0.40 322.87 -0.58
5 0.0932 -1560.52 -0.25 335.90 0.44
6 0.0985 -1619.67 0.56 360.04 -0.33
7 0.1670 -2014.61 -0.35 713.09 0.26
8 0.1698 -2014.89 -0.31 728.01 0.30
9 0.6717 8094.98 -0.05 1328.77 -0.22
10 1.0737 2734.07 -0.11 1048.26 0.07
11 1.0738 2733.35 0.18 1048.52 0.02
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.
14SW349 quality flag:1 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 96.727 106.447 89.301 ecceobj 0.593 0.641 0.546 incobj 15.199 15.198 15.199 qmin 38.333 37.119 39.503 qmax 158.804 181.434 141.819 amean 96.638 106.490 89.189 amin 95.049 104.010 87.809 amax 99.087 109.977 91.192 emean 0.591 0.639 0.544 emin 0.581 0.626 0.532 emax 0.603 0.652 0.556 imean 15.568 15.800 15.516 imin 15.114 15.055 15.039 imax 15.964 16.600 16.177 excite_mean 0.649 0.695 0.606 fracstop 1.000 1.000 1.000 cjmean 3.095 3.066 3.121 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 205.0 197.2 174.7 kozaiamp 180.0 180.0 180.0