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: 14UL277 # Created Fri Apr 26 01:16:40 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 9 observations of 9 # Arc: 9.13y # First observation: 2014/10/21 # Last observation: 2023/12/07 # Chi-squared of fit: 4.00 DOF: 12 RMS: 0.12 # Min/Max residuals: -0.20 0.24 # Exact a, adot, b, bdot, g, gdot: 1.190529E-05 1.508849E-02 -4.105516E-06 -5.330235E-03 1.943039E-02 -5.227545E-04 # Covariance matrix: 9.7193E-13 -2.3067E-13 -1.1234E-13 7.6601E-14 7.4647E-13 -1.5057E-12 -2.3067E-13 1.9169E-13 7.9514E-14 -6.7406E-14 1.0144E-13 1.2913E-12 -1.1234E-13 7.9514E-14 4.0037E-13 -8.6818E-14 -1.8968E-14 5.9994E-13 7.6601E-14 -6.7406E-14 -8.6818E-14 4.1548E-14 -2.0114E-14 -4.9907E-13 7.4647E-13 1.0144E-13 -1.8968E-14 -2.0114E-14 1.7044E-12 3.1099E-13 -1.5057E-12 1.2913E-12 5.9994E-13 -4.9907E-13 3.1099E-13 9.5804E-12 # lat0 lon0 xBary yBary zBary JD0 -9.252476 36.865932 0.162662 -0.158025 -0.971158 2456951.798108 # Heliocentric elements and errors Epoch: 2456952.5000 = 2014/10/22 Mean Anomaly: 203.91843 +/- 0.105 Argument of Peri: 6.04145 +/- 0.089 Long of Asc Node: 192.68399 +/- 0.001 Inclination: 21.44705 +/- 0.000 Eccentricity: 0.10604800 +/- 0.0002 Semi-Major Axis: 47.73203727 +/- 0.0108 Time of Perihelion: 2509175.5839 +/- 42.1 Perihelion: 42.67015018 +/- 0.0132 Aphelion: 52.79392436 +/- 0.0149 Period (y) 329.7791 +/- 0.11 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 41.52088547 +/- 0.0027 Ecliptic Y 30.93674201 +/- 0.0020 Ecliptic Z -8.27519257 +/- 0.0006 Ecliptic XDOT -0.00143476 +/- 0.0000 Ecliptic YDOT 0.00158008 +/- 0.0000 Ecliptic ZDOT -0.00072934 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 52.43612789 +/- 0.0025 Geocenter to KBO 51.46582166 +/- 0.0035 # Hcoef: 6.48
The following table shows the complete astrometric record for 14UL277. 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 (14UL277) followed by the observatory code and reference code for the source of the astrometry.
2014 10 21.29733 02 30 14.536 +05 02 59.33 23.2i 14UL277 W84 C~55Sg 2014 12 16.12646 02 27 01.571 +04 47 19.14 23.8r 14UL277 W84 C~55Sg 2015 12 04.10314 02 31 16.263 +04 48 28.95 23.3i 14UL277 W84 C~55Sg 2017 11 01.17270 02 40 35.063 +04 55 54.50 22.9z 14UL277 W84 C~55Sg 2017 11 15.14962 02 39 41.746 +04 51 14.59 23.9r 14UL277 W84 C~55Sg 2017 11 16.18058 02 39 37.850 +04 50 56.17 24.3g 14UL277 W84 C~55Sg 2018 01 05.06124 02 37 17.381 +04 43 39.61 23.6r 14UL277 W84 C~55Sg 2023 12 07.231880 03 00 36.674 +04 38 45.32 23.6G 14UL277 G37 C~7dJ7 2023 12 07.286450 03 00 36.477 +04 38 44.41 14UL277 G37 C~7dJ7
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 0.09 0.00 -0.02
2 0.1529 0.00 -0.08 0.00 -0.01
3 1.1192 0.00 -0.00 0.00 -0.06
4 3.0305 0.00 -0.05 0.00 -0.02
5 3.0687 0.00 0.15 0.00 0.02
6 3.0715 0.00 -0.20 0.00 0.24
7 3.2081 0.00 0.13 0.00 -0.11
8 9.1278 0.00 0.06 0.00 0.15
9 9.1280 0.00 -0.07 0.00 -0.19
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.
14UL277 quality flag:3 Type: 2:1E 2:1E 2:1E axisobj 48.059 48.059 48.059 ecceobj 0.098 0.098 0.098 incobj 21.340 21.340 21.340 qmin 38.438 38.437 38.439 qmax 57.725 57.725 57.725 amean 47.798 47.798 47.798 amin 47.376 47.376 47.375 amax 48.303 48.303 48.303 emean 0.137 0.137 0.137 emin 0.077 0.077 0.077 emax 0.196 0.196 0.196 imean 20.896 20.896 20.896 imin 19.776 19.776 19.776 imax 21.836 21.836 21.836 excite_mean 0.383 0.383 0.383 fracstop 1.000 1.000 1.000 cjmean 2.960 2.960 2.960 libcent 0 272.7 272.8 272.6 libamp 0 32.0 32.2 31.9 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 192.2 192.2 192.1 kozaiamp 180.0 180.0 180.0