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: 14WL602 # Created Sun Dec 22 02:10:13 2024 # Orbit generated from Bernstein formalism # Fitting 13 observations of 13 # Arc: 4.03y # First observation: 2014/11/21 # Last observation: 2018/12/03 Preliminary a, adot, b, bdot, g, gdot: -0.000053 0.024173 -0.000007 0.000909 0.025108 0.000000 # Chi-squared of fit: 5.89 DOF: 20 RMS: 0.12 # Min/Max residuals: -0.25 0.21 # Exact a, adot, b, bdot, g, gdot: 1.538735E-05 2.407653E-02 5.755604E-07 9.114294E-04 2.469704E-02 -8.522190E-04 # Covariance matrix: 6.4566E-13 -6.6648E-13 2.0850E-14 -2.5855E-14 -1.7362E-13 -5.3780E-12 -6.6648E-13 1.2569E-12 -5.1636E-14 5.8730E-14 2.9256E-14 1.1782E-11 2.0850E-14 -5.1636E-14 3.2832E-13 -1.1153E-13 6.9184E-15 -5.1104E-13 -2.5855E-14 5.8730E-14 -1.1153E-13 5.8417E-14 -2.2482E-15 5.7808E-13 -1.7362E-13 2.9256E-14 6.9184E-15 -2.2482E-15 4.2086E-13 5.0074E-14 -5.3780E-12 1.1782E-11 -5.1104E-13 5.7808E-13 5.0074E-14 1.1569E-10 # lat0 lon0 xBary yBary zBary JD0 -23.252574 15.562422 -0.672595 -0.285799 -0.665630 2456982.721058 # Heliocentric elements and errors Epoch: 2456980.5000 = 2014/11/19 Mean Anomaly: 247.46221 +/- 0.351 Argument of Peri: 30.88447 +/- 0.349 Long of Asc Node: 100.07423 +/- 0.001 Inclination: 22.98535 +/- 0.000 Eccentricity: 0.02254396 +/- 0.0004 Semi-Major Axis: 40.79086799 +/- 0.0047 Time of Perihelion: 2486727.1948 +/- 92.6 Perihelion: 39.87128029 +/- 0.0183 Aphelion: 41.71045569 +/- 0.0183 Period (y) 260.5269 +/- 0.05 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 36.35244946 +/- 0.0009 Ecliptic Y 10.82473710 +/- 0.0003 Ecliptic Z -15.98515881 +/- 0.0004 Ecliptic XDOT -0.00076552 +/- 0.0000 Ecliptic YDOT 0.00255363 +/- 0.0000 Ecliptic ZDOT 0.00013023 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 41.16067076 +/- 0.0008 Geocenter to KBO 40.49067533 +/- 0.0011 # Hcoef: 7.62
The following table shows the complete astrometric record for 14WL602. 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 (14WL602) followed by the observatory code and reference code for the source of the astrometry.
2014 11 21.22028 01 33 38.348 -15 19 00.90 24.0r 14WL602 W84 C~55TE 2014 12 20.13971 01 32 15.148 -15 12 04.79 24.1r 14WL602 W84 C~55TE 2015 09 13.28647 01 43 57.467 -14 17 17.20 23.8r 14WL602 W84 C~55TE 2015 10 07.20699 01 42 16.313 -14 31 21.30 23.0i 14WL602 W84 C~55TE 2015 11 18.23319 01 39 00.145 -14 43 08.44 23.6i 14WL602 W84 C~55TE 2015 12 01.09016 01 38 11.746 -14 42 12.94 23.7r 14WL602 W84 C~55TE 2016 09 30.22961 01 47 52.838 -13 51 09.68 23.1r 14WL602 W84 C~55TE 2016 09 30.23097 01 47 52.843 -13 51 09.71 24.0g 14WL602 W84 C~55TE 2017 09 14.34516 01 54 04.098 -13 04 04.32 22.8i 14WL602 W84 C~55TE 2017 12 14.13127 01 47 41.630 -13 26 20.50 24.3r 14WL602 W84 C~55TE 2018 11 15.24383 01 54 30.643 -12 52 17.66 23.8i 14WL602 W84 C~55TE 2018 12 02.13991 01 53 22.559 -12 51 59.72 24.0r 14WL602 W84 C~55TE 2018 12 03.05592 01 53 19.358 -12 51 52.34 24.6g 14WL602 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 0.01 0.00 0.00
2 0.0792 -940.27 -0.01 859.48 -0.07
3 0.8106 9716.88 -0.08 -225.06 -0.20
4 0.8761 8027.82 0.16 -398.03 0.09
5 0.9911 5134.90 -0.25 107.36 0.14
6 1.0263 4514.09 0.21 440.84 0.02
7 1.8590 13495.13 -0.12 -198.45 0.10
8 1.8590 13495.19 0.04 -198.51 0.05
9 2.8149 19634.73 0.11 129.03 0.00
10 3.0634 13961.10 -0.01 1229.27 -0.22
11 3.9836 20288.41 0.01 611.51 0.04
12 4.0299 19382.77 -0.13 1044.83 0.16
13 4.0324 19342.94 0.08 1071.14 -0.12
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.
14WL602 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 41.132 41.148 41.116 ecceobj 0.018 0.017 0.019 incobj 22.993 22.993 22.992 qmin 39.436 39.446 39.375 qmax 42.552 42.526 42.584 amean 40.903 40.920 40.890 amin 40.604 40.618 40.587 amax 41.214 41.221 41.199 emean 0.022 0.021 0.023 emin 0.012 0.012 0.013 emax 0.033 0.032 0.034 imean 21.254 21.254 21.254 imin 20.803 20.804 20.797 imax 21.800 21.805 21.803 excite_mean 0.363 0.363 0.363 fracstop 1.000 1.000 1.000 cjmean 2.909 2.909 2.909 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 173.1 173.5 173.5 kozaiamp 180.0 179.9 180.0