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: 14QW562 # Created Fri Apr 26 01:16:08 2024 # Orbit generated from Bernstein formalism # Fitting 14 observations of 14 # Arc: 4.28y # First observation: 2014/08/19 # Last observation: 2018/11/30 Preliminary a, adot, b, bdot, g, gdot: 0.000176 0.029486 -0.000021 -0.001584 0.026591 0.000000 # Chi-squared of fit: 6.52 DOF: 22 RMS: 0.12 # Min/Max residuals: -0.28 0.32 # Exact a, adot, b, bdot, g, gdot: 1.778144E-05 2.960240E-02 -1.656117E-06 -1.591823E-03 2.654570E-02 3.392844E-03 # Covariance matrix: 5.8757E-13 -2.5216E-13 8.6064E-15 1.7513E-14 2.1720E-13 -2.2883E-12 -2.5216E-13 6.0197E-13 3.3005E-14 -4.4599E-14 3.0081E-13 5.7891E-12 8.6064E-15 3.3005E-14 3.3514E-13 -1.0951E-13 4.1527E-14 2.8576E-13 1.7513E-14 -4.4599E-14 -1.0951E-13 5.4521E-14 -1.6457E-14 -4.8881E-13 2.1720E-13 3.0081E-13 4.1527E-14 -1.6457E-14 5.6732E-13 2.1157E-12 -2.2883E-12 5.7891E-12 2.8576E-13 -4.8881E-13 2.1157E-12 6.3502E-11 # lat0 lon0 xBary yBary zBary JD0 -19.915317 20.301187 0.822987 -0.202108 -0.558234 2456888.864778 # Heliocentric elements and errors Epoch: 2456880.5000 = 2014/08/11 Mean Anomaly: 16.61566 +/- 0.037 Argument of Peri: 232.60010 +/- 0.066 Long of Asc Node: 119.56272 +/- 0.001 Inclination: 19.92025 +/- 0.000 Eccentricity: 0.23840836 +/- 0.0002 Semi-Major Axis: 49.11818065 +/- 0.0087 Time of Perihelion: 2451077.1751 +/- 12.8 Perihelion: 37.40799566 +/- 0.0118 Aphelion: 60.82836563 +/- 0.0146 Period (y) 344.2481 +/- 0.09 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 34.05781272 +/- 0.0009 Ecliptic Y 11.72471873 +/- 0.0003 Ecliptic Z -12.83193622 +/- 0.0004 Ecliptic XDOT -0.00080806 +/- 0.0000 Ecliptic YDOT 0.00295391 +/- 0.0000 Ecliptic ZDOT -0.00027343 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 38.23692226 +/- 0.0009 Geocenter to KBO 37.67089050 +/- 0.0011 # Hcoef: 7.85
The following table shows the complete astrometric record for 14QW562. 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 (14QW562) followed by the observatory code and reference code for the source of the astrometry.
2014 08 19.36400 01 44 59.134 -10 31 51.16 23.5i 14QW562 W84 C~52Ts 2014 09 25.25078 01 43 01.556 -10 56 27.96 23.8r 14QW562 W84 C~52Ts 2014 12 15.14897 01 37 17.775 -11 15 10.95 23.6r 14QW562 W84 C~52Ts 2015 08 23.38123 01 51 21.726 -10 00 42.20 23.9r 14QW562 W84 C~52Ts 2015 10 22.21801 01 47 28.904 -10 37 05.97 23.0i 14QW562 W84 C~52Ts 2015 11 06.16684 01 46 15.727 -10 42 15.74 23.9r 14QW562 W84 C~52Ts 2016 11 03.25280 01 52 56.818 -10 07 46.99 23.0r 14QW562 W84 C~52Ts 2016 11 03.25417 01 52 56.834 -10 07 47.42 23.0i 14QW562 W84 C~52Ts 2017 09 26.28547 02 02 25.262 -09 15 02.61 23.6g 14QW562 W84 C~52Ts 2017 11 16.14009 01 58 24.183 -09 36 31.00 24.0r 14QW562 W84 C~52Ts 2017 11 16.14148 01 58 24.171 -09 36 31.05 23.6i 14QW562 W84 C~52Ts 2017 12 15.12284 01 56 37.625 -09 35 17.89 24.1r 14QW562 W84 C~52Ts 2018 11 28.18820 02 03 56.303 -09 03 14.75 24.2r 14QW562 W84 C~52Ts 2018 11 30.10539 02 03 48.754 -09 03 14.14 24.3g 14QW562 W84 C~52Ts
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 0.15
2 0.1010 -2163.11 0.14 -710.56 -0.08
3 0.3225 -7277.44 0.04 150.59 -0.05
4 1.0103 5934.33 0.01 -428.55 -0.12
5 1.1741 1922.72 -0.28 -1131.22 -0.09
6 1.2151 807.26 -0.11 -1006.79 0.11
7 2.2091 7068.51 0.07 -1361.40 0.32
8 2.2091 7068.57 0.22 -1361.89 -0.18
9 3.1045 16072.55 -0.00 -1712.63 -0.09
10 3.2437 12267.15 0.04 -1505.29 0.04
11 3.2437 12266.97 -0.05 -1505.27 0.04
12 3.3231 10838.59 0.01 -824.67 -0.03
13 4.2760 17600.49 -0.03 -1589.98 -0.11
14 4.2813 17497.11 -0.02 -1545.35 0.10
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.
14QW562 quality flag:2 Type: SCATNEAR SCATNEAR SCATEXTD axisobj 49.647 49.676 49.618 ecceobj 0.247 0.247 0.246 incobj 19.913 19.913 19.913 qmin 36.663 36.632 36.629 qmax 62.363 62.345 62.225 amean 49.232 49.236 49.191 amin 48.769 48.801 48.742 amax 49.780 49.802 49.720 emean 0.237 0.237 0.237 emin 0.222 0.222 0.223 emax 0.253 0.254 0.253 imean 18.434 18.476 18.416 imin 17.913 17.910 17.909 imax 18.935 19.031 18.909 excite_mean 0.395 0.396 0.395 fracstop 1.000 1.000 1.000 cjmean 2.969 2.968 2.969 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 178.6 178.9 179.2 kozaiamp 179.9 180.0 180.0