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: 13SF101 # Created Sun Nov 24 02:09:34 2024 # Orbit generated from Bernstein formalism # Fitting 32 observations of 32 # Arc: 4.07y # First observation: 2013/08/05 # Last observation: 2017/08/30 Preliminary a, adot, b, bdot, g, gdot: -0.000058 0.020949 -0.000001 0.000433 0.022754 0.000000 # Chi-squared of fit: 13.84 DOF: 58 RMS: 0.12 # Min/Max residuals: -0.35 0.28 # Exact a, adot, b, bdot, g, gdot: 1.502605E-05 2.075381E-02 2.314283E-07 4.300692E-04 2.266281E-02 1.708603E-04 # Covariance matrix: 1.4772E-13 7.7525E-15 1.6553E-16 7.4528E-16 1.2930E-13 4.8052E-13 7.7525E-15 3.4639E-13 -1.2691E-15 6.9686E-15 1.9623E-13 4.2858E-12 1.6553E-16 -1.2691E-15 6.3645E-14 -2.4728E-14 -3.9451E-16 -1.7242E-14 7.4528E-16 6.9686E-15 -2.4728E-14 3.3507E-14 4.3992E-15 9.5419E-14 1.2930E-13 1.9623E-13 -3.9451E-16 4.3992E-15 2.7008E-13 2.7355E-12 4.8052E-13 4.2858E-12 -1.7242E-14 9.5419E-14 2.7355E-12 5.8694E-11 # lat0 lon0 xBary yBary zBary JD0 -0.603479 12.045140 0.871975 -0.005470 -0.522017 2456510.005588 # Heliocentric elements and errors Epoch: 2456510.5000 = 2013/08/06 Mean Anomaly: 195.95018 +/- 0.365 Argument of Peri: 138.73609 +/- 0.365 Long of Asc Node: 37.79083 +/- 0.010 Inclination: 1.31944 +/- 0.000 Eccentricity: 0.05238159 +/- 0.0001 Semi-Major Axis: 42.50701557 +/- 0.0027 Time of Perihelion: 2502638.2847 +/- 102.6 Perihelion: 40.28043055 +/- 0.0056 Aphelion: 44.73360060 +/- 0.0058 Period (y) 277.1399 +/- 0.03 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 43.84358947 +/- 0.0010 Ecliptic Y 8.46694505 +/- 0.0002 Ecliptic Z -0.46469486 +/- 0.0000 Ecliptic XDOT -0.00050872 +/- 0.0000 Ecliptic YDOT 0.00245560 +/- 0.0000 Ecliptic ZDOT 0.00005188 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 44.65607951 +/- 0.0010 Geocenter to KBO 44.12515603 +/- 0.0010 # Hcoef: 7.81
The following table shows the complete astrometric record for 13SF101. 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 (13SF101) followed by the observatory code and reference code for the source of the astrometry.
2013 08 05.50481 00 45 15.132 +04 12 21.27 24.2r 13SF101 568 C~2NKO 2013 08 05.55805 00 45 15.042 +04 12 20.63 24.3r 13SF101 568 C~2NKO 2013 08 08.48371 00 45 09.415 +04 11 43.66 24.6r 13SF101 568 C~2NKO 2013 08 08.52252 00 45 09.329 +04 11 43.13 24.1r 13SF101 568 C~2NKO 2013 08 31.56880 00 44 05.587 +04 04 50.49 24.0r 13SF101 568 C~2NKO 2013 09 01.45434 00 44 02.549 +04 04 30.65 24.6r 13SF101 568 C~2NKO 2013 09 01.49328 00 44 02.416 +04 04 29.93 24.4r 13SF101 568 C~2NKO 2013 09 01.50224 00 44 02.387 +04 04 29.78 24.6r 13SF101 568 C~2NKO 2013 09 05.43382 00 43 48.420 +04 03 00.43 24.0r 13SF101 568 C~2NKO 2013 09 05.47268 00 43 48.261 +04 02 59.58 24.3r 13SF101 568 C~2NKO 2013 09 29.36482 00 42 12.358 +03 52 50.41 24.2r 13SF101 568 C~2NKO 2013 09 29.40366 00 42 12.184 +03 52 49.43 23.9r 13SF101 568 C~2NKO 2013 09 29.50581 00 42 11.748 +03 52 46.82 24.4r 13SF101 568 C~2NKO 2013 09 29.51034 00 42 11.746 +03 52 46.26 24.0r 13SF101 568 C~2NKO 2013 10 05.36346 00 41 46.748 +03 50 09.07 24.3r 13SF101 568 C~2NKO 2013 10 06.37195 00 41 42.432 +03 49 41.98 25.0r 13SF101 568 C~2NKO 2013 10 06.43634 00 41 42.148 +03 49 40.09 24.0r 13SF101 568 C~2NKO 2013 10 07.35873 00 41 38.213 +03 49 14.94 24.1r 13SF101 568 C~2NKO 2013 10 09.49639 00 41 29.111 +03 48 18.07 24.0r 13SF101 568 C~2NKO 2013 11 27.29631 00 38 39.609 +03 30 53.38 24.1r 13SF101 568 C~2NKO 2013 11 27.34255 00 38 39.526 +03 30 52.85 24.3r 13SF101 568 C~2NKO 2013 12 05.24487 00 38 24.820 +03 29 27.24 13SF101 568 C~2NKO 2014 08 24.50155 00 48 51.847 +04 36 40.97 24.2r 13SF101 568 C~2NKO 2014 08 28.47368 00 48 39.586 +04 35 22.54 24.2r 13SF101 568 C~2NKO 2014 10 23.30719 00 44 56.101 +04 11 56.00 24.1r 13SF101 568 C~2NKO 2014 10 27.27389 00 44 40.271 +04 10 18.17 24.4r 13SF101 568 C~2NKO 2014 11 24.28665 00 43 08.251 +04 00 56.31 24.0r 13SF101 568 C~2NKO 2014 11 25.31299 00 43 05.736 +04 00 41.34 24.2r 13SF101 568 C~2NKO 2015 01 17.25897 00 42 51.024 +04 00 05.21 24.3r 13SF101 568 C~2NKO 2017 08 25.50837 01 01 57.460 +06 03 29.32 24.4w 13SF101 568 C~2NKO 2017 08 30.45058 01 01 42.637 +06 01 56.46 24.5w 13SF101 568 C~2NKO 2017 08 30.49734 01 01 42.490 +06 01 55.62 24.5w 13SF101 568 C~2NKO
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 -0.11 0.00 0.01
2 0.0001 -1.49 0.03 -0.06 -0.05
3 0.0082 -93.42 0.07 -1.27 0.11
4 0.0083 -94.81 0.00 -1.25 0.12
5 0.0714 -1133.88 0.05 -9.02 0.12
6 0.0738 -1183.47 -0.09 -9.54 -0.16
7 0.0739 -1185.59 0.03 -9.42 -0.05
8 0.0739 -1186.04 0.08 -9.39 -0.03
9 0.0847 -1413.33 0.04 -10.05 0.05
10 0.0848 -1415.85 -0.14 -9.90 0.19
11 0.1502 -2975.08 -0.06 -9.94 0.05
12 0.1503 -2977.86 -0.11 -9.83 0.14
13 0.1506 -2984.88 0.03 -9.68 0.22
14 0.1506 -2985.13 0.10 -10.18 -0.28
15 0.1666 -3391.03 0.05 -8.58 0.08
16 0.1694 -3461.09 0.01 -8.25 0.13
17 0.1696 -3465.74 -0.10 -8.33 0.00
18 0.1721 -3529.80 -0.25 -8.44 -0.35
19 0.1779 -3677.46 0.23 -7.50 -0.14
20 0.3115 -6422.95 -0.02 24.56 0.12
21 0.3117 -6424.30 0.28 24.56 0.05
22 0.3333 -6660.66 -0.14 32.08 0.01
23 1.0513 3554.05 0.10 81.94 -0.08
24 1.0622 3354.60 0.01 81.00 -0.01
25 1.2151 -272.00 -0.11 87.80 -0.19
26 1.2259 -528.22 0.05 90.13 0.02
27 1.3026 -2015.15 0.05 110.45 -0.09
28 1.3054 -2055.65 -0.11 111.37 -0.08
29 1.4504 -2272.43 0.03 164.13 -0.05
30 4.0548 16422.39 -0.02 349.90 -0.01
31 4.0683 16181.08 -0.03 349.08 0.05
32 4.0684 16178.72 0.04 349.14 0.10
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.
13SF101 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 42.719 42.727 42.711 ecceobj 0.047 0.046 0.047 incobj 1.316 1.316 1.316 qmin 37.000 36.785 37.128 qmax 48.334 48.570 48.055 amean 42.488 42.497 42.480 amin 42.112 42.117 42.094 amax 42.884 42.894 42.869 emean 0.072 0.074 0.069 emin 0.025 0.026 0.024 emax 0.127 0.133 0.122 imean 2.187 2.202 2.164 imin 0.000 0.000 0.000 imax 4.329 4.550 4.119 excite_mean 0.083 0.085 0.081 fracstop 1.000 1.000 1.000 cjmean 3.074 3.074 3.075 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 182.6 183.3 180.7 kozaiamp 180.0 180.0 180.0