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: 14SA374 # Created Sat Apr 20 01:16:22 2024 # Orbit generated from Bernstein formalism # Fitting 41 observations of 41 # Arc: 4.08y # First observation: 2014/09/27 # Last observation: 2018/10/28 Preliminary a, adot, b, bdot, g, gdot: 0.000154 0.020039 0.000009 0.007286 0.022870 0.000000 # Chi-squared of fit: 13.04 DOF: 76 RMS: 0.10 # Min/Max residuals: -0.32 0.30 # Exact a, adot, b, bdot, g, gdot: 1.409459E-05 2.034397E-02 4.650933E-06 7.423237E-03 2.311470E-02 2.680742E-03 # Covariance matrix: 1.2683E-13 -7.9575E-14 3.7876E-15 -2.5840E-14 3.6444E-14 -7.9571E-13 -7.9575E-14 1.5532E-13 -4.1229E-14 7.1633E-14 4.5514E-14 2.1328E-12 3.7876E-15 -4.1229E-14 9.6955E-14 -5.4808E-14 -3.3849E-14 -6.5995E-13 -2.5840E-14 7.1633E-14 -5.4808E-14 6.3214E-14 2.4777E-14 1.1644E-12 3.6444E-14 4.5514E-14 -3.3849E-14 2.4777E-14 1.0916E-13 6.9112E-13 -7.9571E-13 2.1328E-12 -6.5995E-13 1.1644E-12 6.9112E-13 3.4692E-11 # lat0 lon0 xBary yBary zBary JD0 -31.107935 18.015611 0.246988 -0.503056 -0.833973 2456927.759458 # Heliocentric elements and errors Epoch: 2456920.5000 = 2014/09/20 Mean Anomaly: 86.83906 +/- 0.053 Argument of Peri: 199.28390 +/- 0.039 Long of Asc Node: 72.36243 +/- 0.001 Inclination: 35.76547 +/- 0.000 Eccentricity: 0.12004107 +/- 0.0003 Semi-Major Axis: 43.75688691 +/- 0.0042 Time of Perihelion: 2431418.1230 +/- 15.0 Perihelion: 38.50426342 +/- 0.0119 Aphelion: 49.00951039 +/- 0.0122 Period (y) 289.4528 +/- 0.04 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 36.22519016 +/- 0.0005 Ecliptic Y 11.52422777 +/- 0.0002 Ecliptic Z -22.35151698 +/- 0.0003 Ecliptic XDOT -0.00005936 +/- 0.0000 Ecliptic YDOT 0.00251150 +/- 0.0000 Ecliptic ZDOT 0.00058888 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 44.09832807 +/- 0.0004 Geocenter to KBO 43.26250785 +/- 0.0006 # Hcoef: 6.82
The following table shows the complete astrometric record for 14SA374. 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 (14SA374) followed by the observatory code and reference code for the source of the astrometry.
2014 09 27.25868 01 55 22.916 -21 38 04.82 23.5g 14SA374 W84 C~4yUY 2014 09 27.25868 01 55 22.92 -21 38 04.8 23.7g 14SA374 W84 C~3cns 2014 09 27.26006 01 55 22.916 -21 38 04.85 23.2r 14SA374 W84 C~4yUY 2014 09 27.26006 01 55 22.92 -21 38 04.9 23.3r 14SA374 W84 C~3cns 2014 12 23.08867 01 49 23.367 -21 38 06.09 24.0g 14SA374 W84 C~4yUY 2014 12 23.08867 01 49 23.37 -21 38 06.1 24.0g 14SA374 W84 C~3cns 2014 12 26.13885 01 49 17.739 -21 36 12.53 24.3g 14SA374 W84 C~4yUY 2015 01 12.05724 01 49 01.801 -21 23 55.81 22.9i 14SA374 W84 C~4yUY 2015 01 12.05724 01 49 01.80 -21 23 55.8 23.1i 14SA374 W84 C~3cns 2015 01 12.09522 01 49 01.789 -21 23 53.85 23.3r 14SA374 W84 C~4yUY 2015 01 12.09522 01 49 01.79 -21 23 53.8 23.4r 14SA374 W84 C~3cns 2015 01 14.08930 01 49 01.670 -21 22 16.48 22.7i 14SA374 W84 C~4yUY 2015 01 14.08930 01 49 01.67 -21 22 16.5 22.8i 14SA374 W84 C~3cns 2015 01 21.06615 01 49 04.269 -21 16 21.86 24.4g 14SA374 W84 C~4yUY 2015 08 17.39496 02 01 12.651 -20 19 54.53 23.4r 14SA374 W84 C~4yUY 2015 08 17.39633 02 01 12.672 -20 19 54.76 24.1g 14SA374 W84 C~4yUY 2015 08 19.42264 02 01 09.619 -20 21 16.67 22.7i 14SA374 W84 C~4yUY 2015 09 04.34584 02 00 34.187 -20 32 04.25 23.1z 14SA374 W84 C~4yUY 2015 11 01.22249 01 56 27.445 -20 59 08.93 23.1z 14SA374 W84 C~4yUY 2015 11 03.18383 01 56 17.976 -20 59 25.61 23.6r 14SA374 W84 C~4yUY 2015 11 03.18383 01 56 17.98 -20 59 25.6 23.7r 14SA374 W84 C~3cns 2015 11 03.18519 01 56 17.971 -20 59 25.73 23.1i 14SA374 W84 C~4yUY 2015 11 05.17893 01 56 08.404 -20 59 39.09 23.9g 14SA374 W84 C~4yUY 2015 11 06.25555 01 56 03.270 -20 59 44.71 22.2i 14SA374 W84 C~4yUY 2015 11 06.25555 01 56 03.27 -20 59 44.8 22.7i 14SA374 W84 C~3cns 2015 11 06.25691 01 56 03.265 -20 59 44.91 23.5g 14SA374 W84 C~4yUY 2015 11 06.25691 01 56 03.26 -20 59 44.9 23.5g 14SA374 W84 C~3cns 2015 11 08.16425 01 55 54.239 -20 59 52.86 23.1r 14SA374 W84 C~4yUY 2015 11 08.16425 01 55 54.24 -20 59 52.9 23.1r 14SA374 W84 C~3cns 2016 09 23.24386 02 03 09.213 -19 52 43.44 23.0r 14SA374 W84 C~4yUY 2016 09 23.24386 02 03 09.21 -19 52 43.4 23.3r 14SA374 W84 C~3cns 2016 09 24.21167 02 03 05.304 -19 53 16.42 24.1g 14SA374 W84 C~4yUY 2016 09 24.21167 02 03 05.31 -19 53 16.4 24.4g 14SA374 W84 C~3cns 2017 12 26.14982 02 00 27.996 -19 04 38.07 22.2Y 14SA374 W84 C~4yUY 2018 01 10.09454 02 00 09.023 -18 54 48.26 23.1i 14SA374 W84 C~4yUY 2018 01 10.09591 02 00 09.021 -18 54 48.00 23.6r 14SA374 W84 C~4yUY 2018 01 10.09864 02 00 09.023 -18 54 47.98 23.4i 14SA374 W84 C~4yUY 2018 01 10.10001 02 00 09.022 -18 54 48.05 23.8r 14SA374 W84 C~4yUY 2018 10 18.26925 02 08 38.503 -18 20 45.09 23.0z 14SA374 W84 C~4yUY 2018 10 18.30751 02 08 38.334 -18 20 46.23 22.9r 14SA374 W84 C~4yUY 2018 10 28.29376 02 07 50.569 -18 23 43.24 22.7z 14SA374 W84 C~4yUY
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 0.09
2 0.0000 0.06 0.02 -0.00 0.08
3 0.0000 -0.01 0.05 -0.03 0.07
4 0.0000 0.02 0.08 -0.10 -0.00
5 0.2377 -4590.59 -0.24 2017.25 -0.10
6 0.2377 -4590.56 -0.21 2017.23 -0.13
7 0.2461 -4617.41 0.06 2152.72 0.00
8 0.2924 -4528.48 0.05 2917.43 -0.02
9 0.2924 -4528.47 0.06 2917.41 -0.03
10 0.2925 -4527.81 0.09 2919.32 0.13
11 0.2925 -4527.84 0.06 2919.28 0.09
12 0.2980 -4490.65 -0.04 3009.30 0.12
13 0.2980 -4490.64 -0.03 3009.32 0.14
14 0.3171 -4316.25 0.08 3320.36 -0.04
15 0.8874 6395.54 -0.05 2262.54 -0.02
16 0.8874 6395.72 0.17 2262.21 -0.32
17 0.8930 6322.56 -0.06 2205.48 -0.03
18 0.9366 5600.12 0.08 1822.49 -0.05
19 1.0950 1775.88 0.18 1765.33 -0.05
20 1.1004 1648.06 0.07 1804.25 -0.13
21 1.1004 1648.01 0.01 1804.26 -0.12
22 1.1004 1647.89 -0.01 1804.18 -0.23
23 1.1059 1520.12 -0.08 1846.67 -0.04
24 1.1088 1452.14 0.01 1870.79 0.10
25 1.1088 1452.18 0.05 1870.87 0.18
26 1.1088 1451.97 -0.07 1870.76 0.04
27 1.1088 1452.03 -0.01 1870.72 -0.00
28 1.1140 1333.36 -0.06 1914.97 0.03
29 1.1140 1333.37 -0.06 1915.01 0.07
30 1.9904 8570.88 -0.02 3062.63 0.02
31 1.9904 8570.90 -0.00 3062.58 -0.03
32 1.9930 8506.99 -0.09 3055.61 0.08
33 1.9930 8506.90 -0.17 3055.63 0.09
34 3.2468 7697.75 -0.06 6639.21 -0.06
35 3.2877 7697.21 0.00 7288.70 -0.08
36 3.2877 7697.29 0.07 7288.94 0.11
37 3.2877 7697.33 0.08 7288.95 -0.01
38 3.2877 7697.29 0.02 7288.89 -0.13
39 4.0575 15154.78 -0.07 6110.90 0.30
40 4.0576 15152.10 -0.02 6110.88 -0.10
41 4.0850 14457.56 0.10 6238.89 -0.02
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.
14SA374 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 44.130 44.143 44.116 ecceobj 0.122 0.122 0.121 incobj 35.760 35.760 35.760 qmin 37.382 37.414 37.444 qmax 50.706 50.735 50.788 amean 43.922 43.934 43.910 amin 43.569 43.578 43.556 amax 44.303 44.308 44.306 emean 0.130 0.130 0.129 emin 0.114 0.115 0.114 emax 0.145 0.145 0.146 imean 34.325 34.325 34.324 imin 34.021 34.026 34.010 imax 34.670 34.651 34.666 excite_mean 0.579 0.579 0.579 fracstop 1.000 1.000 1.000 cjmean 2.664 2.664 2.664 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 181.5 181.7 181.5 kozaiamp 180.0 179.9 180.0