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: 14UR277 # Created Fri Nov 22 02:10:08 2024 # Orbit generated from Bernstein formalism # Fitting 14 observations of 14 # Arc: 3.98y # First observation: 2014/10/28 # Last observation: 2018/10/20 Preliminary a, adot, b, bdot, g, gdot: 0.000230 0.027551 0.000011 -0.003710 0.027362 0.000000 # Chi-squared of fit: 5.50 DOF: 22 RMS: 0.11 # Min/Max residuals: -0.22 0.26 # Exact a, adot, b, bdot, g, gdot: 1.645138E-05 2.784513E-02 -2.362362E-06 -3.686413E-03 2.679740E-02 3.300752E-03 # Covariance matrix: 3.2573E-13 -1.6933E-13 -9.9635E-16 4.7481E-15 5.6314E-14 -9.1985E-13 -1.6933E-13 7.0607E-13 2.8224E-14 -9.5708E-14 7.4468E-13 6.8412E-12 -9.9635E-16 2.8224E-14 2.9015E-13 -1.0363E-13 4.1716E-14 2.8333E-13 4.7481E-15 -9.5708E-14 -1.0363E-13 6.8984E-14 -1.3510E-13 -9.6929E-13 5.6314E-14 7.4468E-13 4.1716E-14 -1.3510E-13 1.4844E-12 6.9604E-12 -9.1985E-13 6.8412E-12 2.8333E-13 -9.6929E-13 6.9604E-12 7.2905E-11 # lat0 lon0 xBary yBary zBary JD0 -31.409734 41.515764 0.121519 -0.514558 -0.843019 2456958.854968 # Heliocentric elements and errors Epoch: 2456950.5000 = 2014/10/20 Mean Anomaly: 48.93401 +/- 0.051 Argument of Peri: 195.29414 +/- 0.084 Long of Asc Node: 146.35281 +/- 0.001 Inclination: 31.52118 +/- 0.000 Eccentricity: 0.13345534 +/- 0.0003 Semi-Major Axis: 41.30489689 +/- 0.0059 Time of Perihelion: 2443770.6937 +/- 13.3 Perihelion: 35.79253797 +/- 0.0122 Aphelion: 46.81725580 +/- 0.0130 Period (y) 265.4670 +/- 0.06 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 24.66451571 +/- 0.0011 Ecliptic Y 21.67540520 +/- 0.0010 Ecliptic Z -19.44808632 +/- 0.0009 Ecliptic XDOT -0.00182156 +/- 0.0000 Ecliptic YDOT 0.00218602 +/- 0.0000 Ecliptic ZDOT -0.00049709 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 38.16267270 +/- 0.0010 Geocenter to KBO 37.31705032 +/- 0.0017 # Hcoef: 7.69
The following table shows the complete astrometric record for 14UR277. 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 (14UR277) followed by the observatory code and reference code for the source of the astrometry.
2014 10 28.35419 03 14 37.729 -14 39 45.82 23.1i 14UR277 W84 C~55Sh 2014 11 03.33265 03 14 07.017 -14 42 39.73 24.1g 14UR277 W84 C~55Sh 2014 11 16.29925 03 12 58.539 -14 47 12.82 23.0z 14UR277 W84 C~55Sh 2014 11 21.28381 03 12 32.238 -14 48 16.70 23.3g 14UR277 W84 C~55Sh 2015 11 08.31136 03 20 13.381 -14 27 07.76 23.6r 14UR277 W84 C~55Sh 2015 11 08.31409 03 20 13.364 -14 27 07.59 24.5g 14UR277 W84 C~55Sh 2016 11 09.32174 03 26 31.397 -14 09 48.24 23.6i 14UR277 W84 C~55Sh 2016 11 09.32312 03 26 31.401 -14 09 48.20 23.8r 14UR277 W84 C~55Sh 2017 11 10.24924 03 32 51.385 -13 51 33.49 23.1i 14UR277 W84 C~55Sh 2017 12 10.16044 03 30 16.868 -13 55 43.14 23.3r 14UR277 W84 C~55Sh 2017 12 10.16181 03 30 16.842 -13 55 42.97 24.3g 14UR277 W84 C~55Sh 2018 01 08.14234 03 28 24.540 -13 46 19.89 23.5i 14UR277 W84 C~55Sh 2018 02 09.06767 03 27 47.048 -13 23 41.63 23.3r 14UR277 W84 C~55Sh 2018 10 20.36047 03 40 54.560 -13 21 45.38 23.4i 14UR277 W84 C~55Sh
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 0.0164 -477.52 -0.00 -28.40 -0.18
3 0.0519 -1506.75 0.01 16.36 -0.14
4 0.0655 -1889.47 0.04 72.22 0.26
5 1.0293 4868.33 -0.07 -794.19 -0.11
6 1.0293 4868.15 -0.03 -793.95 0.13
7 2.0341 10417.00 -0.08 -1550.78 0.01
8 2.0341 10417.07 0.10 -1550.76 0.02
9 3.0360 16027.92 0.08 -2306.15 -0.02
10 3.1179 13807.21 0.14 -1808.47 -0.17
11 3.1179 13806.91 -0.07 -1808.19 0.08
12 3.1972 12435.00 -0.22 -744.72 0.17
13 3.2846 12353.73 0.14 719.82 -0.06
14 3.9781 23334.82 -0.05 -2952.96 -0.03
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.
14UR277 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 41.644 41.663 41.625 ecceobj 0.140 0.141 0.140 incobj 31.483 31.483 31.483 qmin 34.278 34.318 34.013 qmax 48.681 48.679 48.827 amean 41.314 41.331 41.295 amin 40.956 40.970 40.947 amax 41.689 41.705 41.672 emean 0.147 0.146 0.148 emin 0.126 0.126 0.124 emax 0.168 0.167 0.173 imean 30.204 30.225 30.174 imin 29.662 29.707 29.585 imax 30.573 30.629 30.687 excite_mean 0.524 0.524 0.524 fracstop 1.000 1.000 1.000 cjmean 2.732 2.732 2.732 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 182.3 180.0 187.8 kozaiamp 179.9 179.9 179.9