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: 14WM602 # Created Fri Nov 22 02:10:12 2024 # Orbit generated from Bernstein formalism # Fitting 19 observations of 19 # Arc: 4.01y # First observation: 2014/11/27 # Last observation: 2018/12/01 Preliminary a, adot, b, bdot, g, gdot: -0.000025 0.025910 -0.000161 -0.004976 0.025739 0.000000 # Chi-squared of fit: 4.47 DOF: 32 RMS: 0.09 # Min/Max residuals: -0.18 0.24 # Exact a, adot, b, bdot, g, gdot: 1.658575E-05 2.576397E-02 -3.280275E-06 -5.003734E-03 2.488423E-02 -7.711761E-04 # Covariance matrix: 2.5690E-13 -2.4526E-13 -2.0326E-15 3.2188E-14 -5.2365E-14 -1.8470E-12 -2.4526E-13 7.0312E-13 2.7012E-14 -1.3538E-13 -9.4624E-15 6.8897E-12 -2.0326E-15 2.7012E-14 2.0506E-13 -7.7596E-14 -2.9855E-14 2.6478E-13 3.2188E-14 -1.3538E-13 -7.7596E-14 6.8491E-14 2.2359E-14 -1.3948E-12 -5.2365E-14 -9.4624E-15 -2.9855E-14 2.2359E-14 3.1750E-13 7.0682E-14 -1.8470E-12 6.8897E-12 2.6478E-13 -1.3948E-12 7.0682E-14 7.1625E-11 # lat0 lon0 xBary yBary zBary JD0 -34.924389 -5.448020 -0.926977 -0.194032 -0.278232 2456988.672048 # Heliocentric elements and errors Epoch: 2456980.5000 = 2014/11/19 Mean Anomaly: 356.81793 +/- 0.116 Argument of Peri: 259.92534 +/- 0.154 Long of Asc Node: 103.59726 +/- 0.001 Inclination: 35.91373 +/- 0.000 Eccentricity: 0.13792117 +/- 0.0001 Semi-Major Axis: 46.93289788 +/- 0.0061 Time of Perihelion: 2458018.5583 +/- 37.7 Perihelion: 40.45985756 +/- 0.0066 Aphelion: 53.40593819 +/- 0.0080 Period (y) 321.5320 +/- 0.06 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 33.22304425 +/- 0.0007 Ecliptic Y -2.23596842 +/- 0.0001 Ecliptic Z -23.00650645 +/- 0.0005 Ecliptic XDOT -0.00011808 +/- 0.0000 Ecliptic YDOT 0.00285334 +/- 0.0000 Ecliptic ZDOT -0.00040271 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 40.47307208 +/- 0.0007 Geocenter to KBO 40.18609151 +/- 0.0009 # Hcoef: 7.65
The following table shows the complete astrometric record for 14WM602. 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 (14WM602) followed by the observatory code and reference code for the source of the astrometry.
2014 11 27.17127 00 43 21.839 -33 47 40.86 23.9r 14WM602 W84 C~55TE 2014 12 13.08888 00 42 49.851 -33 37 06.05 24.2g 14WM602 W84 C~55TE 2014 12 13.09025 00 42 49.853 -33 37 06.17 24.0i 14WM602 W84 C~55TE 2014 12 26.10498 00 42 43.865 -33 26 02.39 23.1i 14WM602 W84 C~55TE 2014 12 26.10635 00 42 43.844 -33 26 02.27 23.8r 14WM602 W84 C~55TE 2015 01 13.04672 00 43 06.808 -33 08 19.32 23.5i 14WM602 W84 C~55TE 2015 11 08.10153 00 51 26.317 -33 27 02.80 23.5i 14WM602 W84 C~55TE 2015 11 08.10290 00 51 26.305 -33 27 02.86 24.2g 14WM602 W84 C~55TE 2016 08 26.41053 01 04 16.760 -32 26 24.95 23.4i 14WM602 W84 C~55TE 2016 08 31.37428 01 03 58.042 -32 30 39.33 24.9g 14WM602 W84 C~55TE 2016 11 28.03500 00 56 56.534 -32 50 10.90 23.6r 14WM602 W84 C~55TE 2017 09 25.22511 01 08 48.686 -32 16 19.66 23.5r 14WM602 W84 C~55TE 2017 09 25.22648 01 08 48.693 -32 16 19.68 24.3g 14WM602 W84 C~55TE 2017 11 01.09818 01 05 32.956 -32 27 06.70 22.9z 14WM602 W84 C~55TE 2017 11 20.20707 01 04 07.662 -32 23 14.50 24.2r 14WM602 W84 C~55TE 2017 11 20.20844 01 04 07.654 -32 23 14.48 24.3g 14WM602 W84 C~55TE 2017 12 11.16275 01 03 06.340 -32 11 47.53 23.7r 14WM602 W84 C~55TE 2018 12 01.17615 01 10 09.562 -31 46 24.12 23.3r 14WM602 W84 C~55TE 2018 12 01.17753 01 10 09.543 -31 46 24.09 24.6g 14WM602 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 -0.04 0.00 0.02
2 0.0436 -48.93 0.02 748.28 0.10
3 0.0436 -48.97 -0.03 748.16 -0.09
4 0.0792 200.62 0.15 1367.79 -0.18
5 0.0792 200.44 -0.07 1368.02 -0.01
6 0.1283 959.28 -0.05 2166.22 0.03
7 0.9471 5894.00 0.05 -1853.16 0.00
8 0.9471 5893.84 -0.05 -1853.13 -0.03
9 1.7474 16130.31 -0.08 -3638.67 0.10
10 1.7610 15793.78 0.18 -3733.08 0.08
11 2.0037 10599.70 0.02 -2008.12 0.24
12 2.8283 19407.74 -0.12 -4938.06 -0.01
13 2.8284 19407.81 0.05 -4938.13 -0.08
14 2.9293 16937.51 -0.08 -4179.39 -0.09
15 2.9816 16130.68 0.09 -3415.34 -0.04
16 2.9816 16130.60 0.06 -3415.27 -0.03
17 3.0390 15819.34 -0.08 -2421.50 -0.06
18 4.0110 21248.72 0.09 -3957.39 -0.02
19 4.0110 21248.53 -0.08 -3957.23 0.06
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.
14WM602 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 47.396 47.416 47.376 ecceobj 0.147 0.147 0.146 incobj 35.916 35.916 35.916 qmin 39.938 39.966 39.986 qmax 54.659 54.687 54.581 amean 47.130 47.150 47.110 amin 46.743 46.749 46.723 amax 47.572 47.578 47.517 emean 0.134 0.135 0.134 emin 0.121 0.120 0.120 emax 0.150 0.150 0.149 imean 34.367 34.367 34.366 imin 34.116 34.115 34.112 imax 34.646 34.640 34.615 excite_mean 0.580 0.580 0.580 fracstop 1.000 1.000 1.000 cjmean 2.686 2.686 2.685 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 185.6 185.5 185.5 kozaiamp 180.0 180.0 180.0