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: 14XS54 # Created Fri Nov 22 02:10:12 2024 # Orbit generated from Bernstein formalism # Fitting 14 observations of 14 # Arc: 3.90y # First observation: 2014/12/12 # Last observation: 2018/11/07 Preliminary a, adot, b, bdot, g, gdot: 0.000065 0.025095 0.000046 0.004904 0.025319 0.000000 # Chi-squared of fit: 8.36 DOF: 22 RMS: 0.14 # Min/Max residuals: -0.32 0.27 # Exact a, adot, b, bdot, g, gdot: 1.605811E-05 2.533174E-02 2.660964E-06 4.931871E-03 2.490388E-02 4.105471E-03 # Covariance matrix: 7.1694E-13 -5.0015E-13 2.7617E-14 -5.4978E-14 -2.0839E-13 -3.2416E-12 -5.0015E-13 7.9126E-13 -7.3647E-14 1.0903E-13 3.9010E-14 7.1868E-12 2.7617E-14 -7.3647E-14 5.2284E-13 -2.1040E-13 7.3286E-15 -7.5479E-13 -5.4978E-14 1.0903E-13 -2.1040E-13 1.1498E-13 2.6744E-14 1.1423E-12 -2.0839E-13 3.9010E-14 7.3286E-15 2.6744E-14 5.1293E-13 7.4283E-13 -3.2416E-12 7.1868E-12 -7.5479E-13 1.1423E-12 7.4283E-13 7.4624E-11 # lat0 lon0 xBary yBary zBary JD0 -27.109348 28.253924 -0.769495 -0.279426 -0.546263 2457003.692228 # Heliocentric elements and errors Epoch: 2457000.5000 = 2014/12/09 Mean Anomaly: 42.72001 +/- 0.022 Argument of Peri: 228.17678 +/- 0.040 Long of Asc Node: 95.12790 +/- 0.001 Inclination: 28.91221 +/- 0.000 Eccentricity: 0.21824077 +/- 0.0004 Semi-Major Axis: 46.91559218 +/- 0.0117 Time of Perihelion: 2443072.0407 +/- 4.8 Perihelion: 36.67669710 +/- 0.0191 Aphelion: 57.15448725 +/- 0.0220 Period (y) 321.3542 +/- 0.12 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 31.65768113 +/- 0.0009 Ecliptic Y 17.88982801 +/- 0.0005 Ecliptic Z -18.29792801 +/- 0.0005 Ecliptic XDOT -0.00075089 +/- 0.0000 Ecliptic YDOT 0.00275512 +/- 0.0000 Ecliptic ZDOT 0.00027705 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 40.70711105 +/- 0.0008 Geocenter to KBO 40.15438930 +/- 0.0012 # Hcoef: 7.74
The following table shows the complete astrometric record for 14XS54. 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 (14XS54) followed by the observatory code and reference code for the source of the astrometry.
2014 12 12.19145 02 23 39.250 -14 30 20.17 22.8z 14XS54 W84 C~55TM 2014 12 20.17285 02 23 13.624 -14 27 31.80 24.4r 14XS54 W84 C~55TM 2016 09 23.32842 02 39 45.413 -12 36 09.06 23.5r 14XS54 W84 C~55TM 2016 10 06.22167 02 38 55.21 -12 43 42.4 24.4V 14XS54 W84 C~5abf 2016 10 06.35279 02 38 54.65 -12 43 46.7 14XS54 W84 C~5abf 2016 10 07.30457 02 38 50.58 -12 44 17.6 14XS54 W84 C~5abf 2016 11 19.16214 02 35 24.945 -12 58 08.37 23.4i 14XS54 W84 C~55TM 2016 11 25.14540 02 34 57.170 -12 58 14.93 23.9r 14XS54 W84 C~55TM 2016 12 02.15096 02 34 26.488 -12 57 44.73 23.8r 14XS54 W84 C~55TM 2017 10 30.30285 02 42 01.963 -12 06 30.74 23.7r 14XS54 W84 C~55TM 2017 10 30.30422 02 42 01.980 -12 06 30.65 25.0g 14XS54 W84 C~55TM 2017 12 14.08963 02 38 38.547 -12 08 15.03 23.2r 14XS54 W84 C~55TM 2017 12 14.09100 02 38 38.555 -12 08 15.12 24.4g 14XS54 W84 C~55TM 2018 11 07.26182 02 46 17.940 -11 21 05.50 24.4r 14XS54 W84 C~55TM
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 0.10
2 0.0219 -286.08 -0.01 291.59 -0.02
3 1.7827 15652.85 -0.02 1158.30 0.02
4 1.8180 14796.77 -0.05 1014.72 0.08
5 1.8184 14787.52 0.06 1013.82 0.03
6 1.8210 14720.37 0.11 1007.58 0.07
7 1.9383 11608.33 -0.31 1364.83 -0.32
8 1.9547 11228.05 -0.07 1510.35 0.01
9 1.9739 10821.97 0.27 1705.68 -0.21
10 2.8833 18194.96 -0.22 2051.80 0.03
11 2.8833 18195.22 0.15 2051.79 0.00
12 3.0059 15374.84 -0.02 3083.56 0.25
13 3.0059 15374.91 0.11 3083.44 0.07
14 3.9044 22754.61 -0.02 3148.56 -0.09
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.
14XS54 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 47.441 47.478 47.404 ecceobj 0.226 0.227 0.225 incobj 28.922 28.922 28.923 qmin 35.805 35.780 35.838 qmax 58.903 58.984 58.747 amean 47.080 47.117 47.042 amin 46.665 46.705 46.620 amax 47.593 47.614 47.547 emean 0.219 0.220 0.218 emin 0.201 0.203 0.201 emax 0.238 0.239 0.237 imean 27.362 27.360 27.363 imin 26.891 26.893 26.897 imax 27.775 27.786 27.771 excite_mean 0.509 0.510 0.509 fracstop 1.000 1.000 1.000 cjmean 2.807 2.807 2.807 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 195.1 196.0 194.5 kozaiamp 179.9 179.9 180.0