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: 13SQ100 # Created Sun Nov 24 02:09:33 2024 # Orbit generated from Bernstein formalism # Fitting 40 observations of 41 # Arc: 4.08y # First observation: 2013/08/02 # Last observation: 2017/08/30 Preliminary a, adot, b, bdot, g, gdot: -0.000093 0.022930 0.000036 0.005262 0.023756 0.000000 # Chi-squared of fit: 24.77 DOF: 74 RMS: 0.14 # Min/Max residuals: -0.42 0.39 # Exact a, adot, b, bdot, g, gdot: 1.446885E-05 2.311859E-02 3.372949E-06 5.327403E-03 2.393490E-02 6.037457E-03 # Covariance matrix: 1.3493E-13 -3.2114E-14 7.9390E-16 -3.1766E-16 8.0795E-14 -6.3470E-15 -3.2114E-14 1.7936E-13 -1.5283E-14 3.8159E-14 1.0647E-13 1.9775E-12 7.9390E-16 -1.5283E-14 6.9535E-14 -3.5975E-14 -1.0147E-14 -2.0604E-13 -3.1766E-16 3.8159E-14 -3.5975E-14 4.2570E-14 2.7346E-14 5.1434E-13 8.0795E-14 1.0647E-13 -1.0147E-14 2.7346E-14 1.7492E-13 1.4293E-12 -6.3470E-15 1.9775E-12 -2.0604E-13 5.1434E-13 1.4293E-12 2.6653E-11 # lat0 lon0 xBary yBary zBary JD0 -1.507111 14.646852 0.918198 -0.011460 -0.436596 2456507.005448 # Heliocentric elements and errors Epoch: 2456500.5000 = 2013/07/27 Mean Anomaly: 49.21725 +/- 0.012 Argument of Peri: 277.63936 +/- 0.014 Long of Asc Node: 19.90160 +/- 0.000 Inclination: 12.95384 +/- 0.000 Eccentricity: 0.25194749 +/- 0.0002 Semi-Major Axis: 47.89605704 +/- 0.0063 Time of Perihelion: 2439948.0244 +/- 2.2 Perihelion: 35.82876560 +/- 0.0116 Aphelion: 59.96334849 +/- 0.0133 Period (y) 331.4804 +/- 0.07 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 41.06280886 +/- 0.0007 Ecliptic Y 9.78603278 +/- 0.0002 Ecliptic Z -1.09867105 +/- 0.0000 Ecliptic XDOT 0.00000853 +/- 0.0000 Ecliptic YDOT 0.00273633 +/- 0.0000 Ecliptic ZDOT 0.00059115 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 42.22709778 +/- 0.0007 Geocenter to KBO 41.78000049 +/- 0.0007 # Hcoef: 8.00
The following table shows the complete astrometric record for 13SQ100. 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 (13SQ100) followed by the observatory code and reference code for the source of the astrometry.
2013 08 02.50467 00 56 16.522 +04 22 57.45 24.3r 13SQ100 568 C~2NKM 2013 08 02.54741 00 56 16.442 +04 22 57.03 24.3r 13SQ100 568 C~2NKM 2013 08 11.50367 00 55 59.982 +04 21 25.32 24.1r 13SQ100 568 C~2NKM 2013 08 31.54522 00 55 02.455 +04 15 56.31 13SQ100 568 C~2NKM 2013 08 31.58437 00 55 02.296 +04 15 54.93 23.8r 13SQ100 568 C~2NKM 2013 08 31.58891 00 55 02.316 +04 15 55.36 23.9r 13SQ100 568 C~2NKM 2013 09 01.46986 00 54 59.210 +04 15 37.62 24.1r 13SQ100 568 C~2NKM 2013 09 05.41054 00 54 44.840 +04 14 15.33 24.1r 13SQ100 568 C~2NKM 2013 09 05.44934 00 54 44.700 +04 14 14.58 23.8r 13SQ100 568 C~2NKM 2013 09 29.33623 00 53 04.356 +04 04 45.02 24.5r 13SQ100 568 C~2NKM 2013 09 29.34144 00 53 04.335 +04 04 45.05 24.1r 13SQ100 568 C~2NKM 2013 09 29.38034 00 53 04.154 +04 04 44.15 23.7r 13SQ100 568 C~2NKM 2013 09 29.42409 00 53 03.955 +04 04 43.00 23.9r 13SQ100 568 C~2NKM 2013 10 02.41506 00 52 50.422 +04 03 27.20 24.1r 13SQ100 568 C~2NKM 2013 10 04.49793 00 52 40.958 +04 02 34.20 24.0r 13SQ100 568 C~2NKM 2013 10 04.50677 00 52 40.895 +04 02 33.89 24.3r 13SQ100 568 C~2NKM 2013 11 27.26738 00 49 11.331 +03 44 22.24 24.4r 13SQ100 568 C~2NKM 2013 11 27.31186 00 49 11.207 +03 44 21.51 24.1r 13SQ100 568 C~2NKM 2013 12 05.22570 00 48 53.688 +03 43 11.88 24.6r 13SQ100 568 C~2NKM 2014 07 23.55581 01 00 50.773 +05 10 57.69 24.4r 13SQ100 568 C~2NKM 2014 07 27.53499 01 00 47.962 +05 10 45.67 24.3r 13SQ100 568 C~2NKM 2014 08 22.61348 00 59 58.360 +05 06 20.38 24.6r 13SQ100 568 C~2NKM 2014 08 28.44652 00 59 40.600 +05 04 40.73 24.1r 13SQ100 568 C~2NKM 2014 08 28.45040 00 59 40.573 +05 04 40.75 24.2r 13SQ100 568 C~2NKM 2014 10 23.33112 00 55 45.877 +04 42 56.96 24.0r 13SQ100 568 C~2NKM 2014 10 23.38450 00 55 45.653 +04 42 55.69 23.9r 13SQ100 568 C~2NKM 2014 10 25.45680 00 55 36.616 +04 42 07.19 24.4r 13SQ100 568 C~2NKM 2014 10 27.24490 00 55 28.955 +04 41 26.07 24.6r 13SQ100 568 C~2NKM 2014 10 27.30309 00 55 28.714 +04 41 24.68 24.2r 13SQ100 568 C~2NKM 2014 10 27.36937 00 55 28.424 +04 41 23.21 24.1r 13SQ100 568 C~2NKM 2014 10 29.25791 00 55 20.427 +04 40 40.46 24.5r 13SQ100 568 C~2NKM 2014 11 19.20738 00 54 02.085 +04 33 58.09 24.7r 13SQ100 568 C~2NKM 2014 11 19.27463 00 54 01.863 +04 33 57.07 24.2r 13SQ100 568 C~2NKM 2014 11 25.22391 00 53 44.186 +04 32 33.18 24.1r 13SQ100 568 C~2NKM 2014 12 17.31908 00 53 01.864 +04 29 52.73 25.0r 13SQ100 568 C~2NKM 2015 01 17.26407 00 53 14.098 +04 33 40.30 24.7r 13SQ100 568 C~2NKM 2015 08 20.53131 01 04 28.207 +05 53 45.87 24.3r 13SQ100 568 C~2NKM 2015 12 07.36957 00 57 39.786 +05 17 31.69 24.4w 13SQ100 568 C~2NKM 2017 08 25.51309 01 12 53.229 +07 24 09.22 24.5w 13SQ100 568 C~2NKM 2017 08 30.45523 01 12 38.508 +07 22 53.69 24.3w 13SQ100 568 C~2NKM 2017 08 30.50199 01 12 38.363 +07 22 53.01 24.3w 13SQ100 568 C~2NKM
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 0.17 0.00 0.03
2 0.0001 -1.27 -0.05 0.07 0.04
3 0.0246 -263.77 ( 0.14) 10.50 ( 0.49)
4 0.0795 -1184.55 0.08 39.34 0.06
5 0.0796 -1187.28 -0.42 38.99 -0.38
6 0.0796 -1186.83 0.29 39.27 -0.11
7 0.0820 -1236.54 0.12 40.86 -0.01
8 0.0928 -1466.61 0.23 48.02 -0.05
9 0.0929 -1468.83 0.38 48.14 -0.02
10 0.1583 -3073.70 -0.27 103.38 -0.11
11 0.1583 -3073.98 -0.17 103.53 0.02
12 0.1585 -3076.82 -0.17 103.75 0.11
13 0.1586 -3080.01 -0.16 103.84 0.06
14 0.1668 -3296.11 -0.04 112.30 0.10
15 0.1725 -3447.23 0.20 118.24 -0.07
16 0.1725 -3448.22 -0.13 118.32 -0.03
17 0.3197 -6764.51 0.13 327.45 0.04
18 0.3198 -6766.51 -0.08 327.50 -0.14
19 0.3415 -7035.51 0.04 365.10 -0.06
20 0.9721 4893.54 -0.20 1078.92 0.19
21 0.9830 4850.13 -0.32 1083.97 0.05
22 1.0544 4063.68 0.27 1124.06 0.39
23 1.0703 3780.31 0.04 1134.17 -0.09
24 1.0704 3779.95 -0.12 1134.35 0.07
25 1.2233 40.38 -0.05 1283.44 0.03
26 1.2235 36.80 0.14 1283.56 -0.06
27 1.2292 -106.55 -0.10 1290.99 0.06
28 1.2341 -228.07 -0.02 1297.29 0.08
29 1.2342 -231.93 0.11 1297.40 -0.05
30 1.2344 -236.50 0.10 1297.72 0.00
31 1.2396 -363.29 -0.04 1304.47 -0.03
32 1.2969 -1599.15 0.02 1386.08 -0.03
33 1.2971 -1602.61 -0.03 1386.42 0.00
34 1.3134 -1878.83 0.13 1411.28 -0.01
35 1.3739 -2524.58 -0.09 1508.20 0.07
36 1.4586 -2267.79 -0.02 1647.26 0.03
37 2.0480 8881.64 0.04 2206.00 -0.07
38 2.3460 2411.45 -0.04 2541.00 -0.00
39 4.0630 17946.81 0.04 4362.38 -0.00
40 4.0765 17713.78 -0.05 4375.36 -0.08
41 4.0767 17711.51 0.05 4375.54 -0.04
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.
13SQ100 quality flag:3 Type: 2:1E 2:1E 2:1E axisobj 48.211 48.230 48.192 ecceobj 0.256 0.257 0.255 incobj 12.924 12.924 12.924 qmin 33.855 33.893 33.094 qmax 62.548 62.509 63.419 amean 47.797 47.797 47.797 amin 47.238 47.259 47.277 amax 48.433 48.449 48.453 emean 0.262 0.256 0.271 emin 0.232 0.218 0.238 emax 0.291 0.291 0.309 imean 12.725 12.982 12.391 imin 11.385 11.534 10.843 imax 13.957 14.335 13.793 excite_mean 0.343 0.341 0.346 fracstop 1.000 1.000 1.000 cjmean 3.001 3.003 2.999 libcent 0 79.1 80.3 77.2 libamp 0 33.8 35.7 28.7 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 177.8 180.3 156.8 kozaiamp 180.0 180.0 179.9