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: 13SE113 # Created Sun Dec 22 02:09:41 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 28 observations of 28 # Arc: 6.09y # First observation: 2013/09/30 # Last observation: 2019/11/01 # Chi-squared of fit: 10.35 DOF: 50 RMS: 0.11 # Min/Max residuals: -0.24 0.28 # Exact a, adot, b, bdot, g, gdot: 1.643669E-05 3.290607E-02 9.617221E-06 1.916554E-02 3.121335E-02 4.072771E-04 # Covariance matrix: 2.4743E-13 -1.1342E-13 3.3509E-14 -4.7843E-14 7.0127E-14 -4.1335E-13 -1.1342E-13 1.1940E-13 -4.9443E-14 6.7612E-14 4.8471E-15 5.8179E-13 3.3509E-14 -4.9443E-14 1.9944E-13 -6.8846E-14 -6.8155E-15 -2.6631E-13 -4.7843E-14 6.7612E-14 -6.8846E-14 5.3924E-14 9.8868E-16 3.6484E-13 7.0127E-14 4.8471E-15 -6.8155E-15 9.8868E-16 3.0333E-13 1.6275E-15 -4.1335E-13 5.8179E-13 -2.6631E-13 3.6484E-13 1.6275E-15 3.1400E-12 # lat0 lon0 xBary yBary zBary JD0 -8.700329 4.009699 -0.049323 -0.151230 -0.988921 2456565.670898 # Heliocentric elements and errors Epoch: 2456566.5000 = 2013/10/01 Mean Anomaly: 2.15077 +/- 0.008 Argument of Peri: 339.93171 +/- 0.013 Long of Asc Node: 18.23727 +/- 0.000 Inclination: 31.27336 +/- 0.000 Eccentricity: 0.24473934 +/- 0.0001 Semi-Major Axis: 43.71133922 +/- 0.0048 Time of Perihelion: 2455935.8603 +/- 2.3 Perihelion: 33.01345493 +/- 0.0047 Aphelion: 54.40922352 +/- 0.0067 Period (y) 289.0010 +/- 0.05 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 32.58550990 +/- 0.0006 Ecliptic Y 2.33659014 +/- 0.0000 Ecliptic Z -4.84592756 +/- 0.0001 Ecliptic XDOT 0.00008090 +/- 0.0000 Ecliptic YDOT 0.00289818 +/- 0.0000 Ecliptic ZDOT 0.00165648 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 33.02661978 +/- 0.0006 Geocenter to KBO 32.03760393 +/- 0.0006 # Hcoef: 8.42
The following table shows the complete astrometric record for 13SE113. 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 (13SE113) followed by the observatory code and reference code for the source of the astrometry.
2013 09 30.17012 00 28 34.510 -06 23 22.79 24.2r 13SE113 W84 C~52RV 2013 09 30.17161 00 28 34.494 -06 23 23.01 22.8i 13SE113 W84 C~52RV 2013 10 04.18090 00 28 10.597 -06 25 03.18 23.7r 13SE113 W84 C~52RV 2013 11 08.07750 00 25 02.475 -06 34 07.19 24.1r 13SE113 W84 C~52RV 2013 11 08.07887 00 25 02.474 -06 34 07.19 22.8i 13SE113 W84 C~52RV 2014 10 03.27155 00 33 27.634 -04 39 03.64 23.1r 13SE113 W84 C~52RV 2014 11 13.11823 00 29 50.187 -04 49 57.87 23.4r 13SE113 W84 C~52RV 2014 11 14.06166 00 29 46.325 -04 50 01.35 23.1i 13SE113 W84 C~52RV 2014 11 15.03684 00 29 42.405 -04 50 03.97 23.8r 13SE113 W84 C~52RV 2016 08 26.31588 00 47 03.071 -00 52 08.96 23.4i 13SE113 W84 C~52RV 2016 10 23.13270 00 41 42.813 -01 16 07.71 24.5g 13SE113 W84 C~52RV 2016 11 06.18492 00 40 29.298 -01 19 56.98 23.7r 13SE113 W84 C~52RV 2016 11 06.19115 00 40 29.264 -01 19 57.20 23.1i 13SE113 W84 C~52RV 2017 08 22.33009 00 52 23.044 +00 53 40.14 23.6r 13SE113 W84 C~52RV 2017 08 22.33147 00 52 23.047 +00 53 40.15 24.5g 13SE113 W84 C~52RV 2017 09 27.22401 00 49 20.576 +00 39 21.07 23.3r 13SE113 W84 C~52RV 2017 09 27.22538 00 49 20.569 +00 39 21.05 23.2i 13SE113 W84 C~52RV 2017 09 27.22675 00 49 20.564 +00 39 21.13 24.2g 13SE113 W84 C~52RV 2017 10 22.16485 00 46 54.074 +00 29 10.68 22.5z 13SE113 W84 C~52RV 2018 09 17.31851 00 55 22.413 +02 28 21.22 23.0i 13SE113 W84 C~52RV 2018 10 18.21019 00 52 22.286 +02 15 24.02 22.3z 13SE113 W84 C~52RV 2018 11 08.18235 00 50 28.192 +02 08 24.82 23.0r 13SE113 W84 C~52RV 2018 11 27.08028 00 49 09.158 +02 05 08.40 23.8g 13SE113 W84 C~52RV 2019 11 01.28144 00 56 08.18 +03 54 31.8 24.7g 13SE113 T09 C~7bIB 2019 11 01.32333 00 56 07.94 +03 54 31.4 24.6g 13SE113 T09 C~7bIB 2019 11 01.34476 00 56 07.84 +03 54 30.8 24.6g 13SE113 T09 C~7bIB 2019 11 01.42606 00 56 07.38 +03 54 29.1 24.8g 13SE113 T09 C~7bIB 2019 11 01.50962 00 56 06.91 +03 54 27.6 24.7g 13SE113 T09 C~7bIB
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 0.04 0.00 0.04
2 0.0000 0.00 -0.07 0.00 -0.15
3 0.0110 0.00 0.12 0.00 0.03
4 0.1065 0.00 -0.05 0.00 -0.00
5 0.1065 0.00 0.03 0.00 0.00
6 1.0078 0.00 -0.09 0.00 0.04
7 1.1196 0.00 -0.00 0.00 0.10
8 1.1222 0.00 -0.00 0.00 -0.05
9 1.1249 0.00 -0.05 0.00 0.10
10 2.9053 0.00 -0.02 0.00 0.28
11 3.0636 0.00 -0.09 0.00 -0.22
12 3.1020 0.00 0.11 0.00 0.04
13 3.1020 0.00 0.05 0.00 -0.10
14 3.8937 0.00 -0.07 0.00 -0.09
15 3.8937 0.00 0.06 0.00 -0.05
16 3.9919 0.00 0.04 0.00 -0.03
17 3.9919 0.00 0.05 0.00 -0.02
18 3.9919 0.00 0.10 0.00 0.10
19 4.0602 0.00 0.10 0.00 -0.02
20 4.9641 0.00 -0.16 0.00 0.15
21 5.0487 0.00 0.06 0.00 -0.00
22 5.1061 0.00 -0.03 0.00 -0.23
23 5.1579 0.00 0.06 0.00 0.01
24 6.0865 0.00 0.07 0.00 -0.24
25 6.0867 0.00 -0.08 0.00 0.20
26 6.0867 0.00 0.19 0.00 0.04
27 6.0869 0.00 -0.02 0.00 -0.02
28 6.0872 0.00 -0.22 0.00 0.17
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.
13SE113 quality flag:3 Type: 7:4EEE 7:4EEE 7:4EEE Type: 7:4EII 7:4EII 7:4EII axisobj 43.952 43.952 43.952 ecceobj 0.249 0.249 0.249 incobj 31.219 31.219 31.219 qmin 31.671 31.671 31.672 qmax 56.318 56.319 56.318 amean 43.724 43.724 43.724 amin 43.316 43.316 43.316 amax 44.206 44.206 44.206 emean 0.208 0.208 0.208 emin 0.140 0.140 0.140 emax 0.275 0.275 0.275 imean 31.850 31.851 31.848 imin 30.353 30.353 30.354 imax 33.096 33.096 33.095 excite_mean 0.569 0.569 0.569 fracstop 1.000 1.000 1.000 cjmean 2.689 2.689 2.689 libcent 0 178.9 179.3 179.0 libamp 0 94.3 94.6 94.6 libcent 1 179.2 179.2 179.1 libamp 1 113.0 113.0 113.0 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 190.8 190.7 190.8 kozaiamp 180.0 180.0 180.0