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: 13TB229 # Created Sun Nov 24 02:09:42 2024 # Orbit generated from Bernstein formalism # Fitting 19 observations of 19 # Arc: 3.87y # First observation: 2013/10/13 # Last observation: 2017/08/28 Preliminary a, adot, b, bdot, g, gdot: -0.000045 0.021516 0.000002 -0.000560 0.022993 0.000000 # Chi-squared of fit: 8.29 DOF: 32 RMS: 0.12 # Min/Max residuals: -0.27 0.25 # Exact a, adot, b, bdot, g, gdot: 1.492140E-05 2.154478E-02 -2.165472E-07 -5.599249E-04 2.305676E-02 -1.145257E-04 # Covariance matrix: 5.6042E-13 -2.8488E-13 -3.9108E-15 2.3647E-15 1.8226E-13 -1.1267E-12 -2.8488E-13 5.6983E-13 3.6593E-15 -1.3206E-14 5.0108E-13 6.3752E-12 -3.9108E-15 3.6593E-15 3.3740E-13 -1.1189E-13 -2.1571E-15 2.8637E-14 2.3647E-15 -1.3206E-14 -1.1189E-13 4.8532E-14 -1.6926E-14 -1.7342E-13 1.8226E-13 5.0108E-13 -2.1571E-15 -1.6926E-14 1.2142E-12 8.2020E-12 -1.1267E-12 6.3752E-12 2.8637E-14 -1.7342E-13 8.2020E-12 8.3805E-11 # lat0 lon0 xBary yBary zBary JD0 -3.416191 13.944479 -0.098921 -0.059025 -0.990742 2456578.649468 # Heliocentric elements and errors Epoch: 2456570.5000 = 2013/10/05 Mean Anomaly: 197.33485 +/- 1.268 Argument of Peri: 49.31252 +/- 1.264 Long of Asc Node: 128.07448 +/- 0.009 Inclination: 3.65504 +/- 0.000 Eccentricity: 0.01883685 +/- 0.0001 Semi-Major Axis: 43.57743227 +/- 0.0068 Time of Perihelion: 2504047.4583 +/- 369.9 Perihelion: 42.75657058 +/- 0.0085 Aphelion: 44.39829397 +/- 0.0087 Period (y) 287.6740 +/- 0.07 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 42.95703168 +/- 0.0020 Ecliptic Y 10.77132962 +/- 0.0005 Ecliptic Z -2.58446953 +/- 0.0001 Ecliptic XDOT -0.00063969 +/- 0.0000 Ecliptic YDOT 0.00247725 +/- 0.0000 Ecliptic ZDOT -0.00006542 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 44.36223163 +/- 0.0019 Geocenter to KBO 43.37123414 +/- 0.0021 # Hcoef: 7.07
The following table shows the complete astrometric record for 13TB229. 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 (13TB229) followed by the observatory code and reference code for the source of the astrometry.
2013 10 13.14869 00 56 38.139 +02 21 02.38 23.1i 13TB229 W84 C~52Rg 2013 11 22.13909 00 54 09.535 +02 06 48.25 23.1i 13TB229 W84 C~52Rg 2014 11 14.05174 00 59 09.834 +02 35 41.12 24.1g 13TB229 W84 C~52Rg 2014 11 14.07483 00 59 09.749 +02 35 40.84 23.4r 13TB229 W84 C~52Rg 2014 11 14.07621 00 59 09.740 +02 35 40.79 23.4i 13TB229 W84 C~52Rg 2014 11 15.07423 00 59 06.434 +02 35 23.29 23.7r 13TB229 W84 C~52Rg 2014 11 16.10196 00 59 03.068 +02 35 05.52 23.9r 13TB229 W84 C~52Rg 2015 12 05.05511 01 02 46.763 +02 57 30.56 23.3z 13TB229 W84 C~52Rg 2016 08 26.37683 01 13 26.793 +04 01 07.72 23.6i 13TB229 W84 C~52Rg 2016 08 26.37821 01 13 26.785 +04 01 07.74 22.9z 13TB229 W84 C~52Rg 2016 09 01.36191 01 13 09.427 +03 58 58.88 23.2r 13TB229 W84 C~52Rg 2016 10 29.19312 01 09 18.555 +03 34 16.16 23.2i 13TB229 W84 C~52Rg 2016 10 29.19449 01 09 18.548 +03 34 16.05 23.7r 13TB229 W84 C~52Rg 2016 11 06.13640 01 08 47.134 +03 31 17.63 23.4z 13TB229 W84 C~52Rg 2016 11 10.12160 01 08 32.269 +03 29 55.57 22.7z 13TB229 W84 C~52Rg 2017 08 27.37768 01 17 59.894 +04 27 08.51 24.0r 13TB229 W84 C~52Rg 2017 08 28.36829 01 17 57.192 +04 26 48.39 23.4i 13TB229 W84 C~52Rg 2017 08 28.37103 01 17 57.187 +04 26 48.30 22.9z 13TB229 W84 C~52Rg 2017 08 28.37650 01 17 57.170 +04 26 48.46 24.1r 13TB229 W84 C~52Rg
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 -0.03
2 0.1095 -2384.50 0.15 73.33 0.10
3 1.0867 2436.42 -0.05 -67.29 -0.27
4 1.0867 2435.13 -0.08 -67.06 -0.11
5 1.0867 2434.99 -0.15 -67.06 -0.11
6 1.0895 2382.53 0.06 -64.08 0.10
7 1.0923 2329.13 -0.01 -61.01 0.25
8 2.1435 5941.63 0.01 -112.37 -0.03
9 2.8699 16287.37 0.08 -267.97 0.05
10 2.8699 16287.27 0.04 -267.90 0.11
11 2.8863 15996.22 0.04 -287.61 -0.00
12 3.0446 12218.57 -0.09 -332.77 -0.08
13 3.0446 12218.43 -0.13 -332.83 -0.14
14 3.0664 11713.97 0.05 -317.03 0.10
15 3.0773 11476.22 0.23 -307.33 0.19
16 3.8719 20694.40 -0.10 -386.71 -0.21
17 3.8747 20648.92 -0.05 -389.91 -0.03
18 3.8747 20648.82 -0.02 -389.97 -0.07
19 3.8747 20648.64 0.06 -389.72 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.
13TB229 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.822 43.842 43.802 ecceobj 0.013 0.012 0.013 incobj 3.651 3.651 3.651 qmin 41.901 41.910 41.891 qmax 45.383 45.404 45.367 amean 43.573 43.592 43.553 amin 43.242 43.261 43.223 amax 43.910 43.930 43.896 emean 0.019 0.019 0.018 emin 0.001 0.001 0.001 emax 0.034 0.034 0.034 imean 2.648 2.642 2.653 imin 1.933 1.933 1.930 imax 3.342 3.334 3.349 excite_mean 0.050 0.050 0.050 fracstop 1.000 1.000 1.000 cjmean 3.093 3.094 3.093 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 179.9 179.2 179.8 kozaiamp 180.0 179.9 179.8