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: 14UE278 # Created Mon Apr 28 01:10:13 2025 # Orbit generated from Bernstein formalism # Fitting 14 observations of 14 # Arc: 4.09y # First observation: 2013/11/05 # Last observation: 2017/12/08 Preliminary a, adot, b, bdot, g, gdot: 0.000095 0.023642 -0.000021 -0.008426 0.024229 0.000000 # Chi-squared of fit: 6.59 DOF: 22 RMS: 0.12 # Min/Max residuals: -0.27 0.26 # Exact a, adot, b, bdot, g, gdot: 1.604289E-05 2.401173E-02 -5.011950E-06 -8.548439E-03 2.450925E-02 3.552360E-03 # Covariance matrix: 4.2267E-13 -3.6561E-13 -4.0350E-14 9.5549E-14 -1.5230E-13 -2.7960E-12 -3.6561E-13 6.9342E-13 9.6767E-14 -2.2952E-13 3.7242E-13 6.7151E-12 -4.0350E-14 9.6767E-14 3.2476E-13 -1.2969E-13 4.7951E-14 1.0005E-12 9.5549E-14 -2.2952E-13 -1.2969E-13 1.2621E-13 -1.3685E-13 -2.3776E-12 -1.5230E-13 3.7242E-13 4.7951E-14 -1.3685E-13 6.2944E-13 3.9384E-12 -2.7960E-12 6.7151E-12 1.0005E-12 -2.3776E-12 3.9384E-12 6.9550E-11 # lat0 lon0 xBary yBary zBary JD0 -10.276217 36.334664 -0.106768 -0.175528 -0.968885 2456601.609098 # Heliocentric elements and errors Epoch: 2456600.5000 = 2013/11/04 Mean Anomaly: 31.06880 +/- 0.035 Argument of Peri: 160.45556 +/- 0.067 Long of Asc Node: 190.42375 +/- 0.001 Inclination: 21.93786 +/- 0.000 Eccentricity: 0.21544261 +/- 0.0003 Semi-Major Axis: 50.19874648 +/- 0.0090 Time of Perihelion: 2445389.1052 +/- 12.2 Perihelion: 39.38379727 +/- 0.0161 Aphelion: 61.01369568 +/- 0.0182 Period (y) 355.6702 +/- 0.10 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 33.06965847 +/- 0.0010 Ecliptic Y 24.45910660 +/- 0.0008 Ecliptic Z -7.27887720 +/- 0.0002 Ecliptic XDOT -0.00141811 +/- 0.0000 Ecliptic YDOT 0.00228950 +/- 0.0000 Ecliptic ZDOT -0.00101025 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 41.77118936 +/- 0.0009 Geocenter to KBO 40.80091690 +/- 0.0013 # Hcoef: 7.31
The following table shows the complete astrometric record for 14UE278. 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 (14UE278) followed by the observatory code and reference code for the source of the astrometry.
2013 11 05.10832 02 29 34.08 +03 54 44.3 23.9r 14UE278 W84 C~55Si 2013 11 05.20237 02 29 33.65 +03 54 42.0 14UE278 W84 C~55Si 2013 11 05.25807 02 29 33.38 +03 54 40.5 14UE278 W84 C~55Si 2014 10 21.30166 02 36 32.700 +04 00 22.90 24.2g 14UE278 W84 C~55Si 2014 10 21.30304 02 36 32.697 +04 00 22.77 24.1r 14UE278 W84 C~55Si 2015 01 20.05038 02 31 40.582 +03 42 16.01 23.0i 14UE278 W84 C~55Si 2015 12 15.16239 02 38 27.774 +03 39 55.77 23.5r 14UE278 W84 C~55Si 2016 09 10.36850 02 50 20.803 +04 17 16.12 23.5r 14UE278 W84 C~55Si 2016 09 10.36988 02 50 20.803 +04 17 16.17 23.8g 14UE278 W84 C~55Si 2016 11 10.25323 02 46 30.960 +03 47 44.42 22.6i 14UE278 W84 C~55Si 2017 09 24.38576 02 55 24.433 +04 08 25.45 23.4r 14UE278 W84 C~55Si 2017 10 26.29470 02 53 21.770 +03 52 27.83 23.8g 14UE278 W84 C~55Si 2017 12 08.04210 02 50 13.979 +03 37 36.00 23.3i 14UE278 W84 C~55Si 2017 12 08.12753 02 50 13.641 +03 37 34.90 24.3g 14UE278 W84 C~55Si
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 -0.11 0.00 -0.10
2 0.0003 -6.83 0.07 -0.11 0.02
3 0.0004 -11.14 -0.09 -0.23 0.04
4 0.9588 6044.79 -0.01 -1685.54 0.14
5 0.9588 6044.71 0.01 -1685.65 0.04
6 1.2072 1553.14 0.26 -1316.32 -0.27
7 2.1083 7287.39 -0.19 -3399.33 -0.01
8 2.8481 18163.55 0.01 -4665.82 0.16
9 2.8481 18163.57 0.08 -4665.78 0.23
10 3.0148 14316.66 0.08 -5259.52 -0.02
11 3.8858 22352.92 -0.01 -6613.80 -0.01
12 3.9731 20287.20 0.02 -6945.13 -0.26
13 4.0902 17312.28 0.01 -6901.31 0.06
14 4.0904 17307.09 -0.13 -6900.75 -0.01
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.
14UE278 quality flag:2 Type: SCATNEAR SCATEXTD SCATEXTD axisobj 50.543 50.572 50.515 ecceobj 0.222 0.222 0.221 incobj 21.876 21.877 21.876 qmin 38.424 38.060 38.733 qmax 62.160 62.706 61.889 amean 50.046 50.093 50.045 amin 49.572 49.635 49.605 amax 50.575 50.622 50.565 emean 0.216 0.221 0.214 emin 0.203 0.205 0.205 emax 0.230 0.239 0.224 imean 21.868 21.733 21.910 imin 21.669 21.238 21.691 imax 22.043 22.076 22.133 excite_mean 0.430 0.431 0.430 fracstop 1.000 1.000 1.000 cjmean 2.938 2.938 2.938 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 179.8 185.0 183.8 kozaiamp 180.0 180.0 180.0