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: 14SY373 # Created Sun Dec 22 02:10:03 2024 # Orbit generated from Bernstein formalism # Fitting 23 observations of 23 # Arc: 4.99y # First observation: 2013/10/30 # Last observation: 2018/10/28 Preliminary a, adot, b, bdot, g, gdot: -0.000267 0.026156 0.000321 -0.003108 0.027681 0.000000 # Chi-squared of fit: 8.67 DOF: 40 RMS: 0.11 # Min/Max residuals: -0.24 0.21 # Exact a, adot, b, bdot, g, gdot: 1.579114E-05 2.563350E-02 -1.645611E-06 -3.012957E-03 2.568545E-02 -2.400019E-03 # Covariance matrix: 6.3687E-13 -5.7366E-13 -4.2068E-14 6.6210E-14 -6.4407E-14 -3.7756E-12 -5.7366E-13 7.0029E-13 -5.8585E-15 -8.2836E-14 -2.0673E-13 5.0381E-12 -4.2068E-14 -5.8585E-15 2.8834E-13 -7.0490E-14 3.1857E-13 -7.9798E-14 6.6210E-14 -8.2836E-14 -7.0490E-14 3.7766E-14 8.2171E-17 -6.1710E-13 -6.4407E-14 -2.0673E-13 3.1857E-13 8.2171E-17 1.5650E-12 -1.7176E-12 -3.7756E-12 5.0381E-12 -7.9798E-14 -6.1710E-13 -1.7176E-12 3.7727E-11 # lat0 lon0 xBary yBary zBary JD0 -24.779193 -57.198405 -0.990152 0.026598 0.057338 2456595.553098 # Heliocentric elements and errors Epoch: 2456590.5000 = 2013/10/25 Mean Anomaly: 273.07188 +/- 0.158 Argument of Peri: 351.87845 +/- 0.130 Long of Asc Node: 48.58034 +/- 0.001 Inclination: 25.49216 +/- 0.000 Eccentricity: 0.06813831 +/- 0.0002 Semi-Major Axis: 38.84822371 +/- 0.0077 Time of Perihelion: 2477946.1594 +/- 38.3 Perihelion: 36.20117139 +/- 0.0117 Aphelion: 41.49527604 +/- 0.0124 Period (y) 242.1391 +/- 0.07 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 19.94707322 +/- 0.0009 Ecliptic Y -29.11954760 +/- 0.0014 Ecliptic Z -16.31759385 +/- 0.0008 Ecliptic XDOT 0.00209173 +/- 0.0000 Ecliptic YDOT 0.00178694 +/- 0.0000 Ecliptic ZDOT -0.00018422 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 38.88569983 +/- 0.0012 Geocenter to KBO 38.93254765 +/- 0.0019 # Hcoef: 6.76
The following table shows the complete astrometric record for 14SY373. 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 (14SY373) followed by the observatory code and reference code for the source of the astrometry.
2013 10 30.05232 20 50 42.184 -43 28 49.21 23.8g 14SY373 W84 C~4yUY 2014 09 04.03147 21 01 23.984 -43 34 05.14 22.1z 14SY373 W84 C~4yUY 2014 09 27.01007 20 59 33.56 -43 29 23.5 22.1i 14SY373 W84 C~3cnr 2014 10 02.03737 20 59 16.575 -43 27 27.20 22.5z 14SY373 W84 C~4yUY 2014 10 02.07153 20 59 16.458 -43 27 26.32 22.5i 14SY373 W84 C~4yUY 2014 10 14.02813 20 58 48.487 -43 21 39.48 22.6i 14SY373 W84 C~4yUY 2014 10 21.01982 20 58 40.709 -43 17 35.63 23.2z 14SY373 W84 C~4yUY 2014 10 22.01971 20 58 40.12 -43 16 58.3 21.7r 14SY373 W84 C~3cnr 2014 10 26.02513 20 58 39.211 -43 14 24.50 23.0r 14SY373 W84 C~4yUY 2015 09 13.08833 21 08 42.410 -43 12 49.90 22.1i 14SY373 W84 C~4yUY 2015 09 13.08971 21 08 42.413 -43 12 49.94 22.9r 14SY373 W84 C~4yUY 2015 09 13.09109 21 08 42.398 -43 12 49.87 23.9g 14SY373 W84 C~4yUY 2016 08 23.25841 21 18 45.765 -42 49 41.39 22.3z 14SY373 W84 C~4yUY 2016 09 10.05583 21 16 57.794 -42 50 30.54 22.9z 14SY373 W84 C~4yUY 2016 10 27.00795 21 14 29.423 -42 32 16.16 22.2i 14SY373 W84 C~4yUY 2017 09 28.04498 21 23 29.955 -42 22 32.43 22.5z 14SY373 W84 C~4yUY 2017 10 13.07100 21 22 40.772 -42 16 33.03 23.7g 14SY373 W84 C~4yUY 2017 10 16.13397 21 22 33.990 -42 14 59.62 22.1i 14SY373 W84 C~4yUY 2017 10 16.13536 21 22 33.997 -42 14 59.44 22.5r 14SY373 W84 C~4yUY 2017 10 16.13674 21 22 33.990 -42 14 59.34 23.2g 14SY373 W84 C~4yUY 2017 10 22.01280 21 22 24.343 -42 11 41.32 22.7z 14SY373 W84 C~4yUY 2018 10 27.06093 21 30 06.470 -41 42 46.79 22.1z 14SY373 W84 C~4yUY 2018 10 28.12336 21 30 05.604 -41 42 06.52 22.4i 14SY373 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 -0.00 0.00 -0.04
2 0.8459 6534.86 0.13 -2480.78 0.19
3 0.9089 5489.56 0.07 -1823.75 -0.12
4 0.9226 5351.82 0.04 -1654.04 -0.11
5 0.9227 5350.89 -0.03 -1652.80 -0.06
6 0.9554 5173.30 -0.02 -1226.34 0.08
7 0.9746 5170.88 0.03 -968.07 -0.03
8 0.9773 5176.72 -0.07 -930.63 0.21
9 0.9883 5216.49 0.02 -781.67 0.03
10 1.8701 11473.71 -0.13 -2896.74 0.04
11 1.8701 11473.73 -0.04 -2896.79 -0.05
12 1.8701 11473.60 -0.10 -2896.67 0.04
13 2.8151 18180.68 0.10 -4004.95 0.02
14 2.8638 17051.88 -0.23 -3604.64 -0.21
15 2.9923 15924.26 0.04 -1979.78 -0.07
16 3.9124 21736.18 -0.04 -3700.71 0.04
17 3.9535 21368.08 0.19 -3154.65 0.13
18 3.9619 21334.24 -0.04 -3038.75 -0.24
19 3.9619 21334.38 0.12 -3038.61 -0.15
20 3.9619 21334.35 0.10 -3038.49 -0.08
21 3.9780 21311.44 0.04 -2813.20 0.16
22 4.9911 26807.02 -0.08 -3268.30 0.21
23 4.9940 26814.59 -0.08 -3227.21 -0.00
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.
14SY373 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 38.946 38.970 38.923 ecceobj 0.070 0.070 0.070 incobj 25.527 25.527 25.527 qmin 35.311 35.175 35.287 qmax 42.926 43.057 42.901 amean 39.029 39.052 39.002 amin 38.720 38.752 38.693 amax 39.356 39.391 39.329 emean 0.073 0.075 0.073 emin 0.055 0.057 0.056 emax 0.093 0.095 0.092 imean 24.115 24.123 24.114 imin 23.397 23.413 23.392 imax 24.783 24.805 24.781 excite_mean 0.415 0.416 0.415 fracstop 1.000 1.000 1.000 cjmean 2.844 2.844 2.844 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 176.6 173.9 179.7 kozaiamp 180.0 180.0 180.0