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: 14WC556 # Created Sun Dec 22 02:10:12 2024 # Orbit generated from Bernstein formalism # Fitting 19 observations of 19 # Arc: 3.02y # First observation: 2014/11/16 # Last observation: 2017/11/24 Preliminary a, adot, b, bdot, g, gdot: 0.000046 0.023472 -0.000033 0.005980 0.024594 0.000000 # Chi-squared of fit: 9.43 DOF: 32 RMS: 0.12 # Min/Max residuals: -0.37 0.21 # Exact a, adot, b, bdot, g, gdot: 1.517764E-05 2.340484E-02 3.825847E-06 5.920375E-03 2.395188E-02 -7.105925E-04 # Covariance matrix: 1.6682E-13 -1.5671E-13 7.5993E-15 -2.4326E-14 -4.6651E-14 -1.4181E-12 -1.5671E-13 1.6637E-12 -1.0765E-13 3.6023E-13 1.9362E-14 2.3640E-11 7.5993E-15 -1.0765E-13 1.6450E-13 -8.9854E-14 -1.5334E-14 -1.5999E-12 -2.4326E-14 3.6023E-13 -8.9854E-14 1.3568E-13 4.0612E-14 5.3381E-12 -4.6651E-14 1.9362E-14 -1.5334E-14 4.0612E-14 4.4174E-13 9.3631E-13 -1.4181E-12 2.3640E-11 -1.5999E-12 5.3381E-12 9.3631E-13 3.4776E-10 # lat0 lon0 xBary yBary zBary JD0 -33.865859 -10.829352 -0.890543 -0.240543 -0.358759 2456977.620888 # Heliocentric elements and errors Epoch: 2456970.5000 = 2014/11/09 Mean Anomaly: 354.38645 +/- 0.505 Argument of Peri: 297.92190 +/- 0.596 Long of Asc Node: 54.75405 +/- 0.001 Inclination: 36.37177 +/- 0.000 Eccentricity: 0.08068533 +/- 0.0001 Semi-Major Axis: 45.79070273 +/- 0.0067 Time of Perihelion: 2458735.3175 +/- 158.8 Perihelion: 42.09606457 +/- 0.0076 Aphelion: 49.48534089 +/- 0.0085 Period (y) 309.8662 +/- 0.07 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 34.63893029 +/- 0.0009 Ecliptic Y -5.71820468 +/- 0.0002 Ecliptic Z -23.26533449 +/- 0.0006 Ecliptic XDOT 0.00080252 +/- 0.0000 Ecliptic YDOT 0.00256454 +/- 0.0000 Ecliptic ZDOT 0.00060729 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 42.11685109 +/- 0.0009 Geocenter to KBO 41.75037683 +/- 0.0012 # Hcoef: 7.33
The following table shows the complete astrometric record for 14WC556. 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 (14WC556) followed by the observatory code and reference code for the source of the astrometry.
2014 11 16.12011 00 21 59.949 -34 58 56.45 24.2g 14WC556 W84 C~4yVK 2014 11 16.12293 00 21 59.94 -34 58 56.3 23.4r 14WC556 W84 C~3cpT 2014 11 18.19473 00 21 52.911 -34 57 51.98 24.3g 14WC556 W84 C~4yVK 2014 11 18.19610 00 21 52.919 -34 57 52.03 23.5r 14WC556 W84 C~4yVK 2014 11 18.19746 00 21 52.909 -34 57 52.19 23.6i 14WC556 W84 C~4yVK 2014 11 21.15191 00 21 43.600 -34 56 13.58 24.2g 14WC556 W84 C~4yVK 2014 11 21.15328 00 21 43.608 -34 56 13.40 22.8r 14WC556 W84 C~4yVK 2014 12 11.07435 00 21 02.839 -34 41 54.95 23.2r 14WC556 W84 C~4yVK 2014 12 24.04627 00 20 58.807 -34 30 05.12 23.1z 14WC556 W84 C~4yVK 2016 09 03.36735 00 37 48.440 -32 55 02.85 24.4g 14WC556 W84 C~4yVK 2016 09 05.36217 00 37 38.989 -32 56 17.60 24.6g 14WC556 W84 C~4yVK 2016 09 07.27499 00 37 29.705 -32 57 27.34 23.0i 14WC556 W84 C~4yVK 2016 10 07.17746 00 34 50.255 -33 09 52.04 23.5r 14WC556 W84 C~4yVK 2016 10 07.17882 00 34 50.244 -33 09 52.00 23.1i 14WC556 W84 C~4yVK 2016 10 07.18019 00 34 50.242 -33 09 52.04 24.0g 14WC556 W84 C~4yVK 2017 11 18.10601 00 36 14.806 -32 05 57.63 23.4i 14WC556 W84 C~4yVK 2017 11 18.10738 00 36 14.829 -32 05 57.48 23.6r 14WC556 W84 C~4yVK 2017 11 18.10875 00 36 14.813 -32 05 57.68 24.6g 14WC556 W84 C~4yVK 2017 11 24.17160 00 35 54.972 -32 02 53.49 24.6g 14WC556 W84 C~4yVK
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 0.06 0.00 0.02
2 0.0000 -0.03 0.10 0.18 0.07
3 0.0057 -45.31 -0.13 97.91 0.21
4 0.0057 -45.25 -0.04 97.82 0.05
5 0.0057 -45.43 -0.20 97.74 -0.09
6 0.0138 -99.08 0.00 238.97 -0.17
7 0.0138 -98.91 0.20 239.08 -0.12
8 0.0683 -132.38 -0.09 1233.01 0.10
9 0.1038 160.76 0.10 1881.44 -0.02
10 1.7994 13952.85 -0.37 636.03 -0.14
11 1.8049 13811.73 0.17 632.43 -0.13
12 1.8101 13675.04 0.13 632.00 -0.05
13 1.8920 11561.82 0.02 1006.76 0.05
14 1.8920 11561.72 0.01 1006.87 0.12
15 1.8920 11561.68 0.06 1006.84 0.07
16 3.0061 14434.29 -0.18 3782.31 0.09
17 3.0061 14434.62 0.19 3782.29 0.01
18 3.0061 14434.34 -0.06 3782.22 -0.13
19 3.0227 14309.72 0.03 4069.48 0.07
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.
14WC556 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 46.164 46.186 46.141 ecceobj 0.088 0.089 0.088 incobj 36.367 36.367 36.367 qmin 41.540 41.579 41.522 qmax 50.727 50.804 50.590 amean 46.017 46.041 45.997 amin 45.647 45.683 45.645 amax 46.403 46.435 46.361 emean 0.082 0.082 0.081 emin 0.071 0.071 0.071 emax 0.093 0.094 0.092 imean 35.385 35.385 35.384 imin 35.184 35.173 35.177 imax 35.604 35.615 35.599 excite_mean 0.585 0.585 0.585 fracstop 1.000 1.000 1.000 cjmean 2.663 2.663 2.663 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 173.6 174.4 172.9 kozaiamp 180.0 180.0 180.0