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: 14XR54 # Created Tue Jan 21 02:10:25 2025 # Orbit generated from Bernstein formalism # Fitting 9 observations of 9 # Arc: 3.78y # First observation: 2014/12/12 # Last observation: 2018/09/21 Preliminary a, adot, b, bdot, g, gdot: -0.000341 0.029358 -0.000058 0.005001 0.028481 0.000000 # Chi-squared of fit: 1.34 DOF: 12 RMS: 0.07 # Min/Max residuals: -0.17 0.12 # Exact a, adot, b, bdot, g, gdot: 1.743782E-05 2.818256E-02 2.198238E-06 4.494707E-03 2.537299E-02 -9.160926E-03 # Covariance matrix: 7.3416E-13 -4.9235E-13 2.2848E-15 -3.8570E-15 1.8870E-14 -2.1686E-12 -4.9235E-13 1.1007E-12 -2.9328E-15 -4.9403E-14 -4.8473E-13 7.1869E-12 2.2848E-15 -2.9328E-15 6.6267E-13 -2.3831E-13 -6.7721E-14 -1.8866E-13 -3.8570E-15 -4.9403E-14 -2.3831E-13 2.2418E-13 8.0061E-13 1.5268E-12 1.8870E-14 -4.8473E-13 -6.7721E-14 8.0061E-13 5.2552E-12 8.6791E-12 -2.1686E-12 7.1869E-12 -1.8866E-13 1.5268E-12 8.6791E-12 8.1179E-11 # lat0 lon0 xBary yBary zBary JD0 -27.578495 -10.017517 -0.984160 -0.003153 -0.006454 2457003.574368 # Heliocentric elements and errors Epoch: 2457000.5000 = 2014/12/09 Mean Anomaly: 341.13388 +/- 0.028 Argument of Peri: 341.57959 +/- 0.037 Long of Asc Node: 61.26179 +/- 0.002 Inclination: 29.10635 +/- 0.000 Eccentricity: 0.46897469 +/- 0.0005 Semi-Major Axis: 64.59924229 +/- 0.0607 Time of Perihelion: 2466938.9731 +/- 4.8 Perihelion: 34.30383296 +/- 0.0458 Aphelion: 94.89465161 +/- 0.0949 Period (y) 519.2175 +/- 0.73 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 34.57697483 +/- 0.0031 Ecliptic Y -5.10718849 +/- 0.0006 Ecliptic Z -18.24628624 +/- 0.0016 Ecliptic XDOT -0.00011684 +/- 0.0000 Ecliptic YDOT 0.00310289 +/- 0.0000 Ecliptic ZDOT 0.00088763 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 39.42813113 +/- 0.0028 Geocenter to KBO 39.41198322 +/- 0.0036 # Hcoef: 7.72
The following table shows the complete astrometric record for 14XR54. 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 (14XR54) followed by the observatory code and reference code for the source of the astrometry.
2014 12 12.07359 00 11 12.069 -29 05 02.49 23.6i 14XR54 W84 C~55TM 2014 12 13.07205 00 11 11.688 -29 04 15.14 23.9r 14XR54 W84 C~55TM 2016 11 27.12957 00 23 41.654 -27 16 11.95 23.4r 14XR54 W84 C~55TM 2017 09 24.33885 00 34 36.765 -26 15 25.17 23.2i 14XR54 W84 C~55TM 2017 09 26.22190 00 34 26.649 -26 16 14.43 23.5r 14XR54 W84 C~55TM 2017 09 27.29746 00 34 20.851 -26 16 41.40 23.5i 14XR54 W84 C~55TM 2017 09 27.29883 00 34 20.832 -26 16 41.49 24.0r 14XR54 W84 C~55TM 2017 09 27.30020 00 34 20.829 -26 16 41.56 24.4g 14XR54 W84 C~55TM 2018 09 21.24101 00 41 04.552 -25 07 23.08 22.5z 14XR54 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 0.03 0.00 0.12
2 0.0027 16.76 -0.03 44.57 -0.08
3 1.9605 11816.41 0.03 1243.06 -0.01
4 2.7851 21325.35 -0.03 220.92 -0.17
5 2.7903 21181.08 -0.01 244.78 0.03
6 2.7932 21099.03 0.11 259.53 -0.00
7 2.7932 21098.76 -0.06 259.58 0.03
8 2.7932 21098.69 -0.02 259.54 -0.04
9 3.7760 27995.66 0.00 1178.14 0.12
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.
14XR54 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 65.537 65.702 65.372 ecceobj 0.475 0.477 0.474 incobj 29.110 29.109 29.110 qmin 31.554 32.183 31.906 qmax 100.034 100.168 99.786 amean 64.938 65.358 64.747 amin 64.044 64.131 63.560 amax 66.686 66.621 66.659 emean 0.486 0.483 0.481 emin 0.461 0.460 0.458 emax 0.513 0.507 0.509 imean 26.919 27.386 27.177 imin 25.315 26.145 25.833 imax 28.251 28.359 28.343 excite_mean 0.664 0.667 0.663 fracstop 1.000 1.000 1.000 cjmean 2.753 2.753 2.753 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 176.2 201.5 160.9 kozaiamp 180.0 179.9 180.0