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: 14UW277 # Created Fri Nov 22 02:10:09 2024 # Orbit generated from Bernstein formalism # Fitting 7 observations of 7 # Arc: 3.97y # First observation: 2014/10/29 # Last observation: 2018/10/18 Preliminary a, adot, b, bdot, g, gdot: -0.000070 0.026343 0.000014 -0.007831 0.031063 0.000000 # Chi-squared of fit: 2.25 DOF: 8 RMS: 0.10 # Min/Max residuals: -0.12 0.20 # Exact a, adot, b, bdot, g, gdot: 1.404454E-05 2.748773E-02 -3.730705E-06 -8.099336E-03 3.177060E-02 1.186547E-02 # Covariance matrix: 1.1505E-12 4.6781E-13 -1.4299E-13 -2.1465E-13 1.3972E-12 7.8819E-12 4.6781E-13 1.2927E-12 -1.3648E-13 -3.7302E-13 1.6069E-12 1.4171E-11 -1.4299E-13 -1.3648E-13 5.4743E-13 -9.8362E-14 -3.1380E-13 -1.7560E-12 -2.1465E-13 -3.7302E-13 -9.8362E-14 1.8911E-13 -5.3987E-13 -4.3949E-12 1.3972E-12 1.6069E-12 -3.1380E-13 -5.3987E-13 3.1781E-12 2.0018E-11 7.8819E-12 1.4171E-11 -1.7560E-12 -4.3949E-12 2.0018E-11 1.6633E-10 # lat0 lon0 xBary yBary zBary JD0 -32.942077 38.582209 0.053613 -0.540014 -0.833739 2456959.849178 # Heliocentric elements and errors Epoch: 2456950.5000 = 2014/10/20 Mean Anomaly: 100.14173 +/- 0.040 Argument of Peri: 104.32260 +/- 0.026 Long of Asc Node: 158.34617 +/- 0.001 Inclination: 35.76119 +/- 0.000 Eccentricity: 0.42737067 +/- 0.0002 Semi-Major Axis: 26.46092183 +/- 0.0036 Time of Perihelion: 2443120.6175 +/- 4.7 Perihelion: 15.15229994 +/- 0.0058 Aphelion: 37.76954373 +/- 0.0075 Period (y) 136.1180 +/- 0.03 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 21.45603844 +/- 0.0012 Ecliptic Y 17.05243613 +/- 0.0009 Ecliptic Z -17.11632546 +/- 0.0010 Ecliptic XDOT -0.00110756 +/- 0.0000 Ecliptic YDOT 0.00214532 +/- 0.0000 Ecliptic ZDOT -0.00114167 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 32.31278015 +/- 0.0010 Geocenter to KBO 31.47564426 +/- 0.0018 # Hcoef: 8.76
The following table shows the complete astrometric record for 14UW277. 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 (14UW277) followed by the observatory code and reference code for the source of the astrometry.
2014 10 29.34840 03 06 51.217 -16 54 06.89 23.8r 14UW277 W84 C~55Sh 2014 12 16.21556 03 01 58.996 -17 03 02.64 24.6r 14UW277 W84 C~55Sh 2014 12 23.11426 03 01 26.561 -17 00 36.08 23.6i 14UW277 W84 C~55Sh 2017 11 19.23633 03 24 29.020 -16 48 31.69 23.5r 14UW277 W84 C~55Sh 2018 02 07.06502 03 19 27.969 -16 13 16.00 24.5r 14UW277 W84 C~55Sh 2018 09 22.38379 03 35 52.210 -15 59 38.29 23.5i 14UW277 W84 C~55Sh 2018 10 18.33012 03 34 02.674 -16 23 56.20 23.8r 14UW277 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 -0.08 0.00 -0.06
2 0.1311 -4142.06 0.13 843.07 0.04
3 0.1499 -4536.46 -0.07 1130.37 -0.01
4 3.0579 14443.38 0.19 -4787.91 0.20
5 3.2764 11086.92 -0.12 -1306.92 -0.01
6 3.8988 24775.71 -0.01 -5523.35 -0.12
7 3.9698 22754.66 -0.04 -6322.72 -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.
14UW277 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 26.605 26.614 26.596 ecceobj 0.427 0.427 0.427 incobj 35.684 35.684 35.684 qmin 14.453 14.684 14.775 qmax 41.072 38.609 38.951 amean 27.092 26.204 26.642 amin 26.512 25.456 26.353 amax 28.164 26.806 26.973 emean 0.453 0.427 0.433 emin 0.426 0.398 0.424 emax 0.467 0.446 0.444 imean 34.375 34.931 34.891 imin 34.011 34.410 34.547 imax 34.814 35.916 35.218 excite_mean 0.724 0.714 0.717 fracstop 0.014 0.021 0.017 cjmean 2.515 2.538 2.528 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 114.1 116.8 117.8 kozaiamp 8.4 12.4 12.0