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: 13TT227 # Created Thu Apr 25 01:15:15 2024 # Orbit generated from Bernstein formalism # Fitting 11 observations of 11 # Arc: 3.15y # First observation: 2013/10/04 # Last observation: 2016/11/26 Preliminary a, adot, b, bdot, g, gdot: 0.000237 0.028500 -0.000009 0.002950 0.027404 0.000000 # Chi-squared of fit: 5.18 DOF: 16 RMS: 0.12 # Min/Max residuals: -0.23 0.24 # Exact a, adot, b, bdot, g, gdot: 1.655535E-05 2.852302E-02 1.522233E-06 2.945716E-03 2.688496E-02 -1.417839E-03 # Covariance matrix: 6.8513E-13 -4.3482E-13 1.0472E-14 -2.2537E-14 2.4087E-13 -2.3424E-12 -4.3482E-13 1.4379E-12 -7.3353E-14 1.5186E-13 1.2136E-12 1.5632E-11 1.0472E-14 -7.3353E-14 4.4824E-13 -2.0167E-13 -7.4583E-14 -8.7818E-13 -2.2537E-14 1.5186E-13 -2.0167E-13 1.3787E-13 1.5239E-13 1.8158E-12 2.4087E-13 1.2136E-12 -7.4583E-14 1.5239E-13 2.2097E-12 1.5634E-11 -2.3424E-12 1.5632E-11 -8.7818E-13 1.8158E-12 1.5634E-11 1.8686E-10 # lat0 lon0 xBary yBary zBary JD0 -0.391152 7.151311 -0.062808 -0.006711 -0.998364 2456569.653808 # Heliocentric elements and errors Epoch: 2456560.5000 = 2013/09/25 Mean Anomaly: 337.13969 +/- 0.171 Argument of Peri: 24.96891 +/- 0.222 Long of Asc Node: 10.93073 +/- 0.000 Inclination: 5.91229 +/- 0.001 Eccentricity: 0.11438447 +/- 0.0003 Semi-Major Axis: 42.58415963 +/- 0.0101 Time of Perihelion: 2463005.9034 +/- 48.1 Perihelion: 37.71319300 +/- 0.0163 Aphelion: 47.45512626 +/- 0.0177 Period (y) 277.8947 +/- 0.10 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 37.88759539 +/- 0.0020 Ecliptic Y 4.82002612 +/- 0.0003 Ecliptic Z -0.25389502 +/- 0.0000 Ecliptic XDOT -0.00050900 +/- 0.0000 Ecliptic YDOT 0.00286298 +/- 0.0000 Ecliptic ZDOT 0.00030110 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 38.19380838 +/- 0.0020 Geocenter to KBO 37.19552065 +/- 0.0021 # Hcoef: 7.90
The following table shows the complete astrometric record for 13TT227. 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 (13TT227) followed by the observatory code and reference code for the source of the astrometry.
2013 10 04.15303 00 26 53.111 +02 28 44.70 24.0g 13TT227 W84 C~52Re 2013 11 22.07536 00 23 36.538 +02 09 20.53 24.1r 13TT227 W84 C~52Re 2014 10 21.21921 00 31 17.662 +03 08 41.67 24.2r 13TT227 W84 C~52Re 2014 10 28.18239 00 30 46.653 +03 05 36.34 24.0g 13TT227 W84 C~52Re 2014 10 29.12351 00 30 42.631 +03 05 12.17 22.7z 13TT227 W84 C~52Re 2014 11 15.10387 00 29 38.643 +02 58 55.29 22.8z 13TT227 W84 C~52Re 2015 11 07.08553 00 35 51.620 +03 49 32.27 24.5r 13TT227 W84 C~52Re 2015 11 07.08690 00 35 51.645 +03 49 32.05 23.3i 13TT227 W84 C~52Re 2016 09 09.28605 00 46 08.574 +05 04 14.72 23.3i 13TT227 W84 C~52Re 2016 09 09.28743 00 46 08.575 +05 04 14.71 24.2r 13TT227 W84 C~52Re 2016 11 26.10593 00 40 31.545 +04 30 53.88 23.4r 13TT227 W84 C~52Re
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 0.05 0.00 0.04
2 0.1339 -3166.66 -0.03 95.36 -0.19
3 1.0460 4588.48 0.24 638.41 0.09
4 1.0651 4088.36 -0.07 651.18 0.19
5 1.0677 4023.45 -0.15 652.72 0.03
6 1.1142 2993.72 0.00 684.41 -0.05
7 2.0915 9329.43 -0.21 1277.28 0.13
8 2.0915 9329.69 0.13 1276.94 -0.23
9 2.9326 19627.14 -0.07 1792.91 0.04
10 2.9326 19627.15 0.03 1792.89 0.02
11 3.1457 14171.25 0.09 1918.70 -0.06
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.
13TT227 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 42.831 42.858 42.804 ecceobj 0.118 0.119 0.118 incobj 5.896 5.895 5.896 qmin 35.385 34.930 35.826 qmax 50.198 50.670 49.729 amean 42.570 42.596 42.545 amin 42.171 42.176 42.148 amax 42.993 43.018 42.972 emean 0.115 0.127 0.102 emin 0.046 0.064 0.042 emax 0.168 0.178 0.157 imean 3.526 4.454 3.705 imin 0.093 1.646 0.963 imax 6.602 6.585 6.614 excite_mean 0.133 0.150 0.123 fracstop 1.000 1.000 1.000 cjmean 3.061 3.056 3.064 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 173.3 174.5 187.3 kozaiamp 180.0 180.0 180.0