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: 14SH404 # Created Sun Nov 24 02:10:00 2024 # Orbit generated from Bernstein formalism # Fitting 11 observations of 11 # Arc: 4.13y # First observation: 2014/09/30 # Last observation: 2018/11/16 Preliminary a, adot, b, bdot, g, gdot: -0.000088 0.023254 -0.000098 -0.002258 0.022782 0.000000 # Chi-squared of fit: 2.13 DOF: 16 RMS: 0.08 # Min/Max residuals: -0.15 0.21 # Exact a, adot, b, bdot, g, gdot: 1.575605E-05 2.269900E-02 -1.712518E-06 -2.221790E-03 2.237942E-02 -7.504639E-03 # Covariance matrix: 7.5897E-13 -3.6632E-13 -2.9869E-14 1.8887E-14 6.3680E-14 -2.3733E-12 -3.6632E-13 5.8731E-13 -1.1863E-14 -4.0223E-14 2.8922E-13 6.1062E-12 -2.9869E-14 -1.1863E-14 6.5051E-13 -1.8755E-13 -9.3888E-14 -7.5320E-15 1.8887E-14 -4.0223E-14 -1.8755E-13 7.2200E-14 -9.8734E-15 -4.9261E-13 6.3680E-14 2.8922E-13 -9.3888E-14 -9.8734E-15 5.8310E-13 2.7668E-12 -2.3733E-12 6.1062E-12 -7.5320E-15 -4.9261E-13 2.7668E-12 7.2863E-11 # lat0 lon0 xBary yBary zBary JD0 -27.795216 20.887731 0.245804 -0.453714 -0.861068 2456930.748438 # Heliocentric elements and errors Epoch: 2456930.5000 = 2014/09/30 Mean Anomaly: 334.59463 +/- 0.018 Argument of Peri: 323.81474 +/- 0.030 Long of Asc Node: 122.70293 +/- 0.001 Inclination: 27.75734 +/- 0.000 Eccentricity: 0.44596511 +/- 0.0004 Semi-Major Axis: 67.72525082 +/- 0.0321 Time of Perihelion: 2471296.8792 +/- 2.1 Perihelion: 37.52215214 +/- 0.0325 Aphelion: 97.92834949 +/- 0.0539 Period (y) 557.3579 +/- 0.40 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 37.92475172 +/- 0.0013 Ecliptic Y 14.21265571 +/- 0.0005 Ecliptic Z -20.83678177 +/- 0.0007 Ecliptic XDOT -0.00187191 +/- 0.0000 Ecliptic YDOT 0.00225506 +/- 0.0000 Ecliptic ZDOT 0.00018779 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 45.54621664 +/- 0.0011 Geocenter to KBO 44.68391211 +/- 0.0015 # Hcoef: 7.39
The following table shows the complete astrometric record for 14SH404. 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 (14SH404) followed by the observatory code and reference code for the source of the astrometry.
2014 09 30.24766 01 59 31.171 -17 36 00.99 23.0r 14SH404 W84 C~55S9 2015 01 14.07664 01 54 03.991 -17 32 20.75 24.3r 14SH404 W84 C~55S9 2016 09 08.20890 02 11 15.268 -16 33 54.31 23.3i 14SH404 W84 C~55S9 2016 10 02.24299 02 09 55.521 -16 49 08.06 24.0r 14SH404 W84 C~55S9 2017 11 23.13521 02 11 35.575 -16 39 30.54 23.9i 14SH404 W84 C~55S9 2017 11 23.13661 02 11 35.558 -16 39 30.51 23.6r 14SH404 W84 C~55S9 2017 12 22.09941 02 10 04.637 -16 33 21.66 24.0r 14SH404 W84 C~55S9 2018 01 18.08315 02 09 37.382 -16 18 33.70 24.2r 14SH404 W84 C~55S9 2018 10 20.32428 02 19 29.075 -16 06 09.10 23.6i 14SH404 W84 C~55S9 2018 11 16.26359 02 17 29.104 -16 13 18.11 24.0r 14SH404 W84 C~55S9 2018 11 16.26498 02 17 29.087 -16 13 17.89 24.5g 14SH404 W84 C~55S9
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 0.03
2 0.2897 -4230.60 -0.03 2012.15 0.11
3 1.9410 10754.92 -0.09 -586.51 -0.15
4 2.0068 9334.72 0.02 -961.40 -0.07
5 3.1482 10886.54 0.07 -1012.60 -0.07
6 3.1482 10886.33 -0.07 -1012.47 0.03
7 3.2275 9836.37 0.09 -146.79 0.04
8 3.3014 9834.32 -0.07 825.01 -0.05
9 4.0550 17959.20 0.01 -1974.48 -0.01
10 4.1287 16195.29 0.03 -1651.68 -0.06
11 4.1287 16195.16 -0.02 -1651.37 0.21
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.
14SH404 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 68.553 68.639 68.467 ecceobj 0.449 0.450 0.448 incobj 27.744 27.743 27.744 qmin 36.227 36.490 36.276 qmax 100.678 100.658 100.534 amean 67.660 67.745 67.592 amin 66.828 66.921 66.711 amax 68.778 68.916 68.720 emean 0.446 0.446 0.445 emin 0.430 0.433 0.429 emax 0.464 0.461 0.463 imean 26.089 26.171 26.079 imin 25.409 25.665 25.443 imax 26.859 26.657 26.826 excite_mean 0.627 0.627 0.626 fracstop 1.000 1.000 1.000 cjmean 2.855 2.855 2.855 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 173.9 157.3 172.6 kozaiamp 180.0 179.9 180.0