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: 13SY100 # Created Sun Dec 22 02:09:38 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 32 observations of 32 # Arc: 11.15y # First observation: 2013/08/08 # Last observation: 2024/10/01 # Chi-squared of fit: 9.83 DOF: 58 RMS: 0.10 # Min/Max residuals: -0.19 0.25 # Exact a, adot, b, bdot, g, gdot: 1.366068E-05 2.042447E-02 7.610900E-06 1.046403E-02 2.390852E-02 4.190702E-03 # Covariance matrix: 1.6622E-13 -4.6577E-14 1.3619E-14 -1.9930E-14 1.0598E-13 -1.7758E-13 -4.6577E-14 4.8178E-14 -1.6081E-14 2.4061E-14 -9.3004E-15 2.1872E-13 1.3619E-14 -1.6081E-14 6.9920E-14 -1.7824E-14 3.1276E-15 -8.0462E-14 -1.9930E-14 2.4061E-14 -1.7824E-14 1.7696E-14 -4.0522E-15 1.2046E-13 1.0598E-13 -9.3004E-15 3.1276E-15 -4.0522E-15 1.3934E-13 -3.1799E-14 -1.7758E-13 2.1872E-13 -8.0462E-14 1.2046E-13 -3.1799E-14 1.0955E-12 # lat0 lon0 xBary yBary zBary JD0 -0.842568 13.161519 0.855449 -0.008027 -0.547692 2456512.972828 # Heliocentric elements and errors Epoch: 2456512.5000 = 2013/08/08 Mean Anomaly: 73.11452 +/- 0.017 Argument of Peri: 266.60901 +/- 0.019 Long of Asc Node: 13.63840 +/- 0.000 Inclination: 27.02622 +/- 0.000 Eccentricity: 0.16120062 +/- 0.0000 Semi-Major Axis: 43.32238309 +/- 0.0034 Time of Perihelion: 2435359.6888 +/- 5.4 Perihelion: 36.33878806 +/- 0.0035 Aphelion: 50.30597811 +/- 0.0044 Period (y) 285.1522 +/- 0.03 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 41.45094330 +/- 0.0006 Ecliptic Y 8.81744993 +/- 0.0001 Ecliptic Z -0.61469270 +/- 0.0000 Ecliptic XDOT -0.00005438 +/- 0.0000 Ecliptic YDOT 0.00238984 +/- 0.0000 Ecliptic ZDOT 0.00119123 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 42.38274721 +/- 0.0006 Geocenter to KBO 41.82600857 +/- 0.0007 # Hcoef: 7.80
The following table shows the complete astrometric record for 13SY100. 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 (13SY100) followed by the observatory code and reference code for the source of the astrometry.
2013 08 08.47205 00 49 45.010 +04 25 12.86 24.5r 13SY100 568 C~2NKN 2013 08 08.51087 00 49 44.933 +04 25 12.75 24.0r 13SY100 568 C~2NKN 2013 08 31.55693 00 48 34.892 +04 19 57.77 23.8r 13SY100 568 C~2NKN 2013 09 01.44270 00 48 31.575 +04 19 41.78 24.0r 13SY100 568 C~2NKN 2013 09 01.48164 00 48 31.430 +04 19 41.16 24.1r 13SY100 568 C~2NKN 2013 09 05.42217 00 48 16.118 +04 18 27.04 24.1r 13SY100 568 C~2NKN 2013 09 05.46104 00 48 15.952 +04 18 26.40 24.2r 13SY100 568 C~2NKN 2013 09 29.35316 00 46 30.741 +04 09 47.09 23.8r 13SY100 568 C~2NKN 2013 09 29.39201 00 46 30.565 +04 09 46.10 23.7r 13SY100 568 C~2NKN 2013 09 29.43584 00 46 30.350 +04 09 45.24 23.9r 13SY100 568 C~2NKN 2013 10 02.42685 00 46 16.301 +04 08 35.31 23.8r 13SY100 568 C~2NKN 2013 10 07.34703 00 45 53.135 +04 06 40.37 23.9r 13SY100 568 C~2NKN 2013 10 09.48473 00 45 43.070 +04 05 50.69 24.8r 13SY100 568 C~2NKN 2013 11 27.27905 00 42 32.354 +03 51 21.63 23.9r 13SY100 568 C~2NKN 2013 11 27.33088 00 42 32.206 +03 51 21.03 24.1r 13SY100 568 C~2NKN 2013 12 05.23686 00 42 14.541 +03 50 26.54 24.4r 13SY100 568 C~2NKN 2014 08 24.48990 00 52 24.750 +05 22 26.77 23.8r 13SY100 568 C~2NKN 2014 08 28.45816 00 52 11.296 +05 21 26.83 24.0r 13SY100 568 C~2NKN 2014 08 28.46204 00 52 11.287 +05 21 26.75 23.9r 13SY100 568 C~2NKN 2014 10 23.30330 00 48 05.892 +05 01 37.49 23.9r 13SY100 568 C~2NKN 2014 10 27.27001 00 47 48.352 +05 00 12.38 24.2r 13SY100 568 C~2NKN 2014 11 24.26724 00 46 04.913 +04 52 20.18 13SY100 568 C~2NKN 2014 12 17.34724 00 45 19.941 +04 50 03.56 24.3r 13SY100 568 C~2NKN 2015 01 18.24063 00 45 34.581 +04 54 56.77 23.9r 13SY100 568 C~2NKN 2017 07 17.61130 01 03 33.684 +08 21 37.45 13SY100 568 C~2NKN 2017 07 23.61385 01 03 31.205 +08 22 12.75 24.2w 13SY100 568 C~2NKN 2017 08 25.52260 01 02 26.203 +08 20 03.16 24.3w 13SY100 568 C~2NKN 2017 08 30.46454 01 02 09.790 +08 19 00.88 24.4w 13SY100 568 C~2NKN 2017 08 30.51718 01 02 09.604 +08 19 00.22 24.1w 13SY100 568 C~2NKN 2024 10 01.373320 01 23 31.886 +14 48 26.70 24.0G 13SY100 G37 C~8Gye 2024 10 01.416890 01 23 31.688 +14 48 25.85 13SY100 G37 C~8Gye 2024 10 01.461100 01 23 31.497 +14 48 24.92 13SY100 G37 C~8Gye
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 -0.14
2 0.0001 0.00 0.22 0.00 0.09
3 0.0632 0.00 -0.19 0.00 -0.08
4 0.0656 0.00 -0.05 0.00 -0.09
5 0.0657 0.00 0.04 0.00 -0.00
6 0.0765 0.00 0.25 0.00 -0.13
7 0.0766 0.00 0.13 0.00 -0.02
8 0.1420 0.00 -0.03 0.00 0.14
9 0.1421 0.00 0.10 0.00 0.05
10 0.1423 0.00 0.01 0.00 0.21
11 0.1505 0.00 -0.19 0.00 -0.02
12 0.1639 0.00 -0.12 0.00 -0.12
13 0.1698 0.00 -0.05 0.00 -0.11
14 0.3034 0.00 0.08 0.00 0.11
15 0.3035 0.00 -0.10 0.00 -0.03
16 0.3252 0.00 -0.03 0.00 0.11
17 1.0432 0.00 0.06 0.00 0.03
18 1.0540 0.00 -0.09 0.00 -0.01
19 1.0540 0.00 -0.02 0.00 -0.03
20 1.2069 0.00 -0.08 0.00 0.06
21 1.2178 0.00 -0.02 0.00 -0.03
22 1.2944 0.00 0.15 0.00 0.03
23 1.3576 0.00 0.11 0.00 -0.10
24 1.4450 0.00 -0.07 0.00 0.06
25 3.9401 0.00 0.06 0.00 -0.12
26 3.9566 0.00 -0.05 0.00 0.05
27 4.0467 0.00 -0.12 0.00 0.02
28 4.0602 0.00 0.00 0.00 0.05
29 4.0604 0.00 0.02 0.00 0.10
30 11.1483 0.00 -0.09 0.00 0.04
31 11.1484 0.00 -0.04 0.00 0.01
32 11.1485 0.00 0.16 0.00 -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.
13SY100 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 43.543 43.544 43.543 ecceobj 0.164 0.164 0.164 incobj 26.956 26.956 26.956 qmin 35.835 35.854 35.854 qmax 51.225 51.163 51.186 amean 43.339 43.344 43.338 amin 42.972 42.982 42.960 amax 43.753 43.740 43.755 emean 0.153 0.153 0.154 emin 0.137 0.138 0.137 emax 0.171 0.170 0.171 imean 27.170 27.191 27.169 imin 26.729 26.743 26.715 imax 27.589 27.573 27.591 excite_mean 0.482 0.482 0.482 fracstop 1.000 1.000 1.000 cjmean 2.803 2.803 2.803 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 179.3 176.4 178.7 kozaiamp 180.0 180.0 180.0