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: 14WC602 # Created Fri Apr 26 01:16:50 2024 # Orbit generated from Bernstein formalism # Fitting 20 observations of 20 # Arc: 4.03y # First observation: 2014/11/18 # Last observation: 2018/11/30 Preliminary a, adot, b, bdot, g, gdot: -0.000027 0.031779 -0.000134 -0.002179 0.029539 0.000000 # Chi-squared of fit: 3.95 DOF: 34 RMS: 0.08 # Min/Max residuals: -0.19 0.17 # Exact a, adot, b, bdot, g, gdot: 1.710792E-05 3.140221E-02 -1.682855E-06 -2.182374E-03 2.863571E-02 -3.139220E-03 # Covariance matrix: 2.2051E-13 -2.1225E-13 1.4249E-15 8.3860E-15 -2.1079E-14 -1.2761E-12 -2.1225E-13 5.5288E-13 5.4138E-15 -3.2440E-14 -5.4869E-14 4.2680E-12 1.4249E-15 5.4138E-15 1.7232E-13 -5.9911E-14 -2.4661E-14 3.7922E-14 8.3860E-15 -3.2440E-14 -5.9911E-14 3.7701E-14 1.3246E-14 -2.6479E-13 -2.1079E-14 -5.4869E-14 -2.4661E-14 1.3246E-14 3.0269E-13 -3.6960E-13 -1.2761E-12 4.2680E-12 3.7922E-14 -2.6479E-13 -3.6960E-13 3.5221E-11 # lat0 lon0 xBary yBary zBary JD0 -29.463723 -8.465483 -0.887866 -0.214410 -0.379917 2456979.676858 # Heliocentric elements and errors Epoch: 2456970.5000 = 2014/11/09 Mean Anomaly: 323.62605 +/- 0.066 Argument of Peri: 309.53788 +/- 0.089 Long of Asc Node: 89.67415 +/- 0.001 Inclination: 29.26445 +/- 0.000 Eccentricity: 0.11590604 +/- 0.0001 Semi-Major Axis: 38.71448219 +/- 0.0035 Time of Perihelion: 2465860.3941 +/- 16.0 Perihelion: 34.22723968 +/- 0.0056 Aphelion: 43.20172470 +/- 0.0061 Period (y) 240.8898 +/- 0.03 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 30.63327910 +/- 0.0006 Ecliptic Y -3.66037587 +/- 0.0001 Ecliptic Z -17.17700029 +/- 0.0003 Ecliptic XDOT 0.00007773 +/- 0.0000 Ecliptic YDOT 0.00301825 +/- 0.0000 Ecliptic ZDOT -0.00003394 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 35.31069921 +/- 0.0005 Geocenter to KBO 34.92143726 +/- 0.0007 # Hcoef: 7.86
The following table shows the complete astrometric record for 14WC602. 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 (14WC602) followed by the observatory code and reference code for the source of the astrometry.
2014 11 18.17608 00 20 43.005 -30 09 00.78 23.6g 14WC602 W84 C~55TE 2014 12 12.06949 00 19 53.905 -29 53 19.40 23.9g 14WC602 W84 C~55TE 2014 12 12.07085 00 19 53.909 -29 53 19.38 23.4r 14WC602 W84 C~55TE 2014 12 12.07222 00 19 53.917 -29 53 19.28 23.2i 14WC602 W84 C~55TE 2014 12 13.07482 00 19 53.298 -29 52 28.60 23.5i 14WC602 W84 C~55TE 2014 12 13.08184 00 19 53.297 -29 52 28.39 22.9r 14WC602 W84 C~55TE 2014 12 15.06463 00 19 52.487 -29 50 46.11 23.2z 14WC602 W84 C~55TE 2015 11 14.05695 00 28 37.091 -29 27 29.82 23.8r 14WC602 W84 C~55TE 2015 11 14.05831 00 28 37.081 -29 27 29.70 24.1g 14WC602 W84 C~55TE 2016 08 14.39072 00 44 03.639 -28 02 56.60 23.6r 14WC602 W84 C~55TE 2016 08 14.39208 00 44 03.623 -28 02 56.70 23.2i 14WC602 W84 C~55TE 2016 10 21.12813 00 38 06.452 -28 44 41.31 23.2g 14WC602 W84 C~55TE 2016 10 29.25732 00 37 22.231 -28 45 00.02 23.1i 14WC602 W84 C~55TE 2016 11 04.09479 00 36 52.750 -28 44 26.71 23.3r 14WC602 W84 C~55TE 2017 09 26.34959 00 48 06.480 -27 47 47.03 23.7g 14WC602 W84 C~55TE 2017 12 09.04570 00 42 22.649 -27 41 52.12 23.8r 14WC602 W84 C~55TE 2017 12 09.08186 00 42 22.581 -27 41 50.48 24.0g 14WC602 W84 C~55TE 2018 11 15.13026 00 51 01.138 -27 05 54.70 22.5i 14WC602 W84 C~55TE 2018 11 29.10311 00 50 09.156 -27 00 04.88 23.4r 14WC602 W84 C~55TE 2018 11 30.08125 00 50 06.216 -26 59 32.70 24.1g 14WC602 W84 C~55TE
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 0.05 0.00 0.10
2 0.0654 -140.55 -0.08 1128.33 0.05
3 0.0654 -140.50 -0.05 1128.33 -0.02
4 0.0654 -140.36 0.07 1128.37 -0.04
5 0.0682 -124.56 -0.05 1177.19 0.13
6 0.0682 -124.47 -0.08 1177.38 -0.03
7 0.0736 -87.49 0.12 1273.33 -0.19
8 0.9880 6625.16 0.01 -646.70 -0.13
9 0.9880 6625.10 0.00 -646.53 -0.02
10 1.7391 19799.76 0.10 -2119.42 -0.06
11 1.7391 19799.52 -0.05 -2119.40 -0.00
12 1.9246 14427.16 -0.02 -1970.63 0.17
13 1.9468 13907.64 0.12 -1702.82 -0.07
14 1.9628 13583.49 -0.08 -1484.67 0.11
15 2.8561 23075.61 -0.08 -2955.92 0.04
16 3.0578 19260.71 -0.00 -348.58 0.01
17 3.0579 19260.74 -0.01 -346.70 0.06
18 3.9917 26401.46 0.10 -1968.86 -0.10
19 4.0299 25975.21 0.02 -1308.42 0.02
20 4.0326 25957.46 -0.09 -1260.34 -0.03
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.
14WC602 quality flag:2 Type: SCATNEAR SCATEXTD SCATEXTD axisobj 39.021 39.033 39.010 ecceobj 0.121 0.121 0.121 incobj 29.281 29.282 29.281 qmin 33.609 33.369 33.600 qmax 44.617 44.663 44.320 amean 38.875 38.872 38.835 amin 38.542 38.552 38.532 amax 39.382 39.228 39.178 emean 0.116 0.119 0.116 emin 0.100 0.101 0.100 emax 0.136 0.139 0.133 imean 27.552 27.523 27.550 imin 26.991 26.968 26.980 imax 28.201 28.197 28.210 excite_mean 0.477 0.477 0.477 fracstop 1.000 1.000 1.000 cjmean 2.776 2.776 2.776 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 175.4 175.9 174.5 kozaiamp 180.0 180.0 179.9