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: 14WZ555 # Created Fri Apr 19 01:16:55 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 46 observations of 46 # Arc: 6.15y # First observation: 2014/11/16 # Last observation: 2021/01/11 # Chi-squared of fit: 9.12 DOF: 86 RMS: 0.08 # Min/Max residuals: -0.22 0.32 # Exact a, adot, b, bdot, g, gdot: 1.754769E-05 3.092864E-02 1.221297E-07 9.100225E-04 2.754360E-02 -2.758662E-03 # Covariance matrix: 1.0184E-13 -4.8599E-14 -2.0328E-14 1.2377E-15 5.5492E-14 -1.6000E-13 -4.8599E-14 7.5320E-14 -6.3066E-15 3.9377E-15 1.7477E-14 3.7243E-13 -2.0328E-14 -6.3066E-15 8.9773E-14 -1.8289E-14 -7.2032E-14 -6.1954E-14 1.2377E-15 3.9377E-15 -1.8289E-14 7.3285E-15 1.0597E-14 2.5130E-14 5.5492E-14 1.7477E-14 -7.2032E-14 1.0597E-14 1.9709E-13 1.7069E-13 -1.6000E-13 3.7243E-13 -6.1954E-14 2.5130E-14 1.7069E-13 2.0490E-12 # lat0 lon0 xBary yBary zBary JD0 -32.613983 22.193442 -0.513515 -0.455858 -0.712779 2456977.770208 # Heliocentric elements and errors Epoch: 2456978.5000 = 2014/11/17 Mean Anomaly: 342.88796 +/- 0.010 Argument of Peri: 299.70807 +/- 0.015 Long of Asc Node: 108.99768 +/- 0.000 Inclination: 31.97359 +/- 0.000 Eccentricity: 0.20509945 +/- 0.0001 Semi-Major Axis: 45.76195967 +/- 0.0040 Time of Perihelion: 2462353.2047 +/- 14.5 Perihelion: 36.37620708 +/- 0.0041 Aphelion: 55.14771225 +/- 0.0055 Period (y) 309.5745 +/- 0.04 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 28.90225265 +/- 0.0005 Ecliptic Y 12.34839339 +/- 0.0002 Ecliptic Z -19.56817551 +/- 0.0003 Ecliptic XDOT -0.00133428 +/- 0.0000 Ecliptic YDOT 0.00277277 +/- 0.0000 Ecliptic ZDOT 0.00022409 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 37.02350820 +/- 0.0004 Geocenter to KBO 36.30617578 +/- 0.0006 # Hcoef: 6.91
The following table shows the complete astrometric record for 14WZ555. 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 (14WZ555) followed by the observatory code and reference code for the source of the astrometry.
2014 11 16.26943 02 11 57.862 -21 35 18.80 22.2i 14WZ555 W84 C~4yVK 2014 11 16.26943 02 11 57.86 -21 35 18.8 22.4i 14WZ555 W84 C~3cpS 2014 12 17.16553 02 09 45.721 -21 26 35.97 22.9g 14WZ555 W84 C~4yVK 2014 12 17.16553 02 09 45.72 -21 26 36.0 23.1g 14WZ555 W84 C~3cpS 2014 12 31.14336 02 09 11.880 -21 17 24.73 22.7z 14WZ555 W84 C~4yVK 2015 01 07.11767 02 09 02.565 -21 11 48.75 22.4z 14WZ555 W84 C~4yVK 2015 01 12.10490 02 08 59.187 -21 07 26.67 22.9g 14WZ555 W84 C~4yVK 2015 01 12.10490 02 08 59.18 -21 07 26.7 23.2g 14WZ555 W84 C~3cpS 2015 01 12.10626 02 08 59.186 -21 07 26.61 22.9r 14WZ555 W84 C~4yVK 2015 01 12.10626 02 08 59.19 -21 07 26.6 22.9r 14WZ555 W84 C~3cpS 2015 01 13.10774 02 08 58.841 -21 06 32.04 22.6i 14WZ555 W84 C~4yVK 2015 01 13.10774 02 08 58.84 -21 06 32.1 22.6i 14WZ555 W84 C~3cpS 2015 01 15.10446 02 08 58.480 -21 04 41.34 22.7r 14WZ555 W84 C~4yVK 2015 01 15.10446 02 08 58.48 -21 04 41.3 22.7r 14WZ555 W84 C~3cpS 2015 01 15.10583 02 08 58.482 -21 04 41.30 23.0i 14WZ555 W84 C~4yVK 2015 01 15.10583 02 08 58.48 -21 04 41.3 22.9i 14WZ555 W84 C~3cpS 2015 01 21.06177 02 09 00.109 -20 58 57.60 22.7r 14WZ555 W84 C~4yVK 2015 01 21.06177 02 09 00.11 -20 58 57.6 22.7r 14WZ555 W84 C~3cpS 2015 12 05.07187 02 17 21.838 -20 47 04.03 22.6r 14WZ555 W84 C~4yVK 2015 12 05.07187 02 17 21.84 -20 47 04.0 22.7r 14WZ555 W84 C~3cpS 2015 12 15.17624 02 16 42.680 -20 42 58.71 23.2g 14WZ555 W84 C~4yVK 2015 12 15.17624 02 16 42.68 -20 42 58.7 23.1g 14WZ555 W84 C~3cpS 2016 01 17.10352 02 15 42.199 -20 18 51.27 22.7z 14WZ555 W84 C~4yVK 2016 02 06.03860 02 16 03.256 -19 58 37.69 22.2i 14WZ555 W84 C~4yVK 2016 02 06.03860 02 16 03.26 -19 58 37.7 22.2i 14WZ555 W84 C~3cpS 2016 02 06.03997 02 16 03.261 -19 58 37.61 22.3i 14WZ555 W84 C~4yVK 2016 09 24.22867 02 30 13.327 -19 39 27.43 22.9g 14WZ555 W84 C~4yVK 2016 09 24.22867 02 30 13.33 -19 39 27.4 23.0g 14WZ555 W84 C~3cpS 2017 12 07.20382 02 30 45.752 -19 12 30.32 22.1i 14WZ555 W84 C~4yVK 2017 12 10.18223 02 30 33.179 -19 11 29.31 22.5r 14WZ555 W84 C~4yVK 2017 12 10.18362 02 30 33.180 -19 11 29.22 23.3g 14WZ555 W84 C~4yVK 2017 12 24.15990 02 29 43.682 -19 04 42.31 22.7r 14WZ555 W84 C~4yVK 2017 12 24.16126 02 29 43.676 -19 04 42.25 22.3i 14WZ555 W84 C~4yVK 2017 12 24.16262 02 29 43.670 -19 04 42.16 23.2g 14WZ555 W84 C~4yVK 2018 02 13.03766 02 29 32.735 -18 19 07.64 22.5z 14WZ555 W84 C~4yVK 2018 11 16.27877 02 39 15.986 -18 26 06.40 22.6r 14WZ555 W84 C~4yVK 2018 11 16.28014 02 39 15.976 -18 26 06.40 22.4i 14WZ555 W84 C~4yVK 2018 11 16.28153 02 39 15.975 -18 26 06.32 23.1g 14WZ555 W84 C~4yVK 2020 10 14.46982 02 55 36.667 -16 32 35.34 22.5w 14WZ555 F51 C~4A5M 2020 10 14.49046 02 55 36.554 -16 32 35.61 22.2w 14WZ555 F51 C~4A5M 2020 10 14.50083 02 55 36.511 -16 32 36.08 22.5w 14WZ555 F51 C~4A5M 2020 10 20.359960 02 55 06.711 -16 35 51.96 22.5G 14WZ555 G37 C~4Kxw 2020 10 20.406740 02 55 06.462 -16 35 53.54 14WZ555 G37 C~4Kxw 2021 01 11.108120 02 48 57.969 -16 24 33.94 22.5G 14WZ555 G37 C~4UFW 2021 01 11.166270 02 48 57.861 -16 24 31.23 14WZ555 G37 C~4UFW 2021 01 11.212780 02 48 57.804 -16 24 28.74 14WZ555 G37 C~4UFW
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 0.09
2 0.0000 0.00 -0.02 0.00 0.09
3 0.0846 0.00 -0.01 0.00 0.07
4 0.0846 0.00 -0.03 0.00 0.04
5 0.1229 0.00 0.11 0.00 0.03
6 0.1420 0.00 -0.14 0.00 -0.17
7 0.1556 0.00 0.03 0.00 0.01
8 0.1556 0.00 -0.07 0.00 -0.02
9 0.1556 0.00 0.09 0.00 0.01
10 0.1556 0.00 0.03 0.00 0.00
11 0.1584 0.00 0.04 0.00 -0.06
12 0.1584 0.00 0.05 0.00 -0.00
13 0.1638 0.00 -0.04 0.00 0.07
14 0.1638 0.00 -0.04 0.00 0.03
15 0.1638 0.00 -0.01 0.00 -0.01
16 0.1638 0.00 -0.04 0.00 -0.01
17 0.1801 0.00 -0.03 0.00 -0.01
18 0.1801 0.00 -0.04 0.00 -0.01
19 1.0508 0.00 0.09 0.00 0.02
20 1.0508 0.00 0.06 0.00 -0.01
21 1.0785 0.00 0.12 0.00 0.03
22 1.0785 0.00 0.12 0.00 0.02
23 1.1686 0.00 -0.05 0.00 0.03
24 1.2232 0.00 -0.01 0.00 -0.01
25 1.2232 0.00 -0.07 0.00 -0.00
26 1.2232 0.00 -0.04 0.00 -0.01
27 1.8562 0.00 0.03 0.00 -0.06
28 1.8562 0.00 -0.01 0.00 -0.09
29 3.0580 0.00 0.07 0.00 0.02
30 3.0662 0.00 -0.03 0.00 -0.07
31 3.0662 0.00 0.08 0.00 -0.01
32 3.1044 0.00 0.04 0.00 -0.01
33 3.1044 0.00 0.01 0.00 0.00
34 3.1044 0.00 -0.02 0.00 0.04
35 3.2437 0.00 0.03 0.00 0.05
36 4.0000 0.00 -0.04 0.00 -0.03
37 4.0000 0.00 -0.08 0.00 -0.02
38 4.0000 0.00 0.02 0.00 0.06
39 5.9116 0.00 0.04 0.00 -0.14
40 5.9116 0.00 -0.09 0.00 0.32
41 5.9117 0.00 0.05 0.00 0.22
42 5.9277 0.00 0.03 0.00 -0.09
43 5.9278 0.00 0.01 0.00 -0.22
44 6.1542 0.00 -0.01 0.00 -0.10
45 6.1544 0.00 -0.16 0.00 -0.13
46 6.1545 0.00 0.15 0.00 0.15
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.
14WZ555 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 46.234 46.234 46.234 ecceobj 0.212 0.212 0.212 incobj 31.979 31.979 31.979 qmin 35.622 35.639 35.581 qmax 56.465 56.491 56.516 amean 45.836 45.835 45.834 amin 45.435 45.431 45.451 amax 46.296 46.304 46.298 emean 0.202 0.202 0.202 emin 0.183 0.183 0.183 emax 0.221 0.221 0.221 imean 30.416 30.415 30.402 imin 29.995 29.985 29.970 imax 30.784 30.779 30.771 excite_mean 0.545 0.545 0.545 fracstop 1.000 1.000 1.000 cjmean 2.741 2.741 2.741 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 187.7 188.0 189.0 kozaiamp 180.0 180.0 180.0