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: 13FL28 # Created Fri Apr 26 01:14:21 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 65 observations of 65 # Arc: 11.15y # First observation: 2011/01/30 # Last observation: 2022/03/27 # Chi-squared of fit: 81.78 DOF: 124 RMS: 0.20 # Min/Max residuals: -0.51 0.68 # Exact a, adot, b, bdot, g, gdot: 2.387598E-05 4.759494E-02 -4.514375E-06 -1.042428E-02 3.187959E-02 -1.967546E-03 # Covariance matrix: 9.6729E-14 -2.8953E-14 -6.1665E-15 4.5506E-15 3.8588E-15 -4.0361E-14 -2.8953E-14 1.9706E-14 4.8112E-15 -4.0012E-15 1.1003E-14 3.5023E-14 -6.1665E-15 4.8112E-15 6.9914E-14 -9.7370E-15 6.4621E-16 9.4722E-15 4.5506E-15 -4.0012E-15 -9.7370E-15 2.5281E-15 -2.2670E-15 -7.7679E-15 3.8588E-15 1.1003E-14 6.4621E-16 -2.2670E-15 5.5254E-14 1.8258E-14 -4.0361E-14 3.5023E-14 9.4722E-15 -7.7679E-15 1.8258E-14 6.8094E-14 # lat0 lon0 xBary yBary zBary JD0 -10.107104 152.714223 0.379126 -0.160144 -0.898416 2455591.907796 # Heliocentric elements and errors Epoch: 2455592.5000 = 2011/01/31 Mean Anomaly: 359.87287 +/- 0.000 Argument of Peri: 224.99359 +/- 0.001 Long of Asc Node: 294.38349 +/- 0.000 Inclination: 15.82764 +/- 0.000 Eccentricity: 0.90786317 +/- 0.0000 Semi-Major Axis: 349.19076614 +/- 0.1520 Time of Perihelion: 2456434.1837 +/- 1555.2 Perihelion: 32.17333027 +/- 0.0196 Aphelion: 666.20820201 +/- 0.2902 Period (y) 6525.3277 +/- 4.26 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -28.07852795 +/- 0.0002 Ecliptic Y 14.91094256 +/- 0.0001 Ecliptic Z -5.50489554 +/- 0.0000 Ecliptic XDOT -0.00158744 +/- 0.0000 Ecliptic YDOT -0.00377488 +/- 0.0000 Ecliptic ZDOT -0.00085169 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 32.26524989 +/- 0.0002 Geocenter to KBO 31.36808915 +/- 0.0002 # Hcoef: 8.02
The following table shows the complete astrometric record for 13FL28. 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 (13FL28) followed by the observatory code and reference code for the source of the astrometry.
2011 01 30.407030 10 04 13.329 +01 03 39.19 23.2G 13FL28 F51 C~5Xcq 2011 01 30.421791 10 04 13.239 +01 03 39.38 22.9G 13FL28 F51 C~5Xcq 2011 01 30.437865 10 04 13.169 +01 03 39.56 22.4G 13FL28 F51 C~5Xcq 2011 01 30.452644 10 04 13.099 +01 03 39.90 23.1G 13FL28 F51 C~5Xcq 2011 02 04.453345 10 03 46.389 +01 05 01.67 23.2G 13FL28 F51 C~5Xcq 2011 02 04.467611 10 03 46.341 +01 05 02.19 23.2G 13FL28 F51 C~5Xcq 2011 02 04.482069 10 03 46.239 +01 05 02.15 23.1G 13FL28 F51 C~5Xcq 2011 02 04.496500 10 03 46.161 +01 05 02.81 22.6G 13FL28 F51 C~5Xcq 2011 02 05.455724 10 03 40.929 +01 05 19.64 22.7G 13FL28 F51 C~5Xcq 2011 06 02.244549 09 58 34.38 +01 44 15.2 22.7i 13FL28 568 C~5Xcq 2011 06 04.245211 09 58 40.64 +01 44 07.1 22.6z 13FL28 568 C~5Xcq 2011 10 27.621935 10 14 39.636 +00 04 41.86 22.2G 13FL28 F51 C~5Xcq 2012 01 19.458548 10 14 29.021 -00 29 40.49 22.2G 13FL28 F51 C~5Xcq 2012 01 19.481358 10 14 28.902 -00 29 40.89 22.5G 13FL28 F51 C~5Xcq 2012 01 19.495365 10 14 28.852 -00 29 40.41 22.3G 13FL28 F51 C~5Xcq 2012 01 19.509507 10 14 28.779 -00 29 40.63 23.1G 13FL28 F51 C~5Xcq 2012 03 21.297876 10 09 04.428 -00 06 53.40 22.7G 13FL28 F51 C~5Xcq 2013 03 16.03362 10 18 55.393 -01 41 31.46 23.1r 13FL28 807 C~1M7X 2013 03 16.10813 10 18 55.012 -01 41 28.96 23.2r 13FL28 807 C~1M7X 2013 03 16.17826 10 18 54.641 -01 41 27.00 13FL28 807 C~1M7X 2013 03 17.03265 10 18 50.364 -01 41 00.09 13FL28 807 C~1M7X 2013 04 01.098495 10 17 41.91 -01 33 08.8 13FL28 W84 C~55Mp 2013 04 01.099653 10 17 41.90 -01 33 08.7 13FL28 W84 C~55Mp 2013 04 03.148519 10 17 33.83 -01 32 05.8 13FL28 W84 C~55Mp 2013 04 03.149676 10 17 33.82 -01 32 05.8 13FL28 W84 C~55Mp 2014 03 26.007308 10 27 34.18 -03 08 09.9 23.1V 13FL28 W84 C~5Xcq 2014 03 28.006398 10 27 25.06 -03 07 04.8 22.9V 13FL28 W84 C~5Xcq 2015 02 20.425449 10 40 01.377 -04 56 13.12 23.0G 13FL28 F51 C~5Xcq 2015 12 13.602501 10 53 04.193 -06 21 06.40 22.5G 13FL28 F51 C~5Xcq 2015 12 13.615270 10 53 04.215 -06 21 06.77 23.6G 13FL28 F51 C~5Xcq 2015 12 13.628083 10 53 04.218 -06 21 07.27 22.9G 13FL28 F51 C~5Xcq 2016 01 12.544643 10 52 23.559 -06 31 37.94 22.8G 13FL28 F51 C~5Xcq 2016 01 17.528286 10 52 07.573 -06 32 09.43 22.8G 13FL28 F51 C~5Xcq 2016 01 17.541599 10 52 07.533 -06 32 09.47 23.4G 13FL28 F51 C~5Xcq 2016 01 17.568245 10 52 07.407 -06 32 09.45 23.0G 13FL28 F51 C~5Xcq 2016 03 30.361525 10 46 05.006 -06 07 27.65 23.3G 13FL28 F51 C~5Xcq 2016 04 30.264742 10 44 20.792 -05 50 34.75 23.0G 13FL28 F51 C~5Xcq 2016 04 30.275884 10 44 20.778 -05 50 34.45 23.6G 13FL28 F51 C~5Xcr 2016 04 30.287007 10 44 20.743 -05 50 34.30 22.9G 13FL28 F51 C~5Xcr 2016 04 30.298143 10 44 20.716 -05 50 33.99 23.1G 13FL28 F51 C~5Xcr 2017 01 26.574313 11 00 53.973 -08 00 47.86 23.9G 13FL28 F51 C~5Xcr 2017 03 02.188525 10 58 01.20 -07 52 07.4 22.7r 13FL28 W84 C~5Xcr 2017 03 02.189547 10 58 01.19 -07 52 07.4 23.2g 13FL28 W84 C~5Xcr 2018 05 18.050752 11 02 34.64 -08 38 37.6 23.4g 13FL28 W84 C~5Xcr 2019 01 04.654144 11 20 33.878 -10 48 10.74 22.9G 13FL28 F51 C~5Xcr 2019 01 12.544326 11 20 19.725 -10 50 41.79 23.0G 13FL28 F51 C~5Xcr 2019 01 12.557693 11 20 19.677 -10 50 42.21 23.0G 13FL28 F51 C~5Xcr 2019 02 05.562042 11 18 59.087 -10 52 42.19 23.6G 13FL28 F51 C~5Xcr 2019 04 08.341431 11 13 42.704 -10 26 37.61 23.0G 13FL28 F51 C~5Xcr 2019 05 01.346767 11 12 19.189 -10 12 45.47 22.2G 13FL28 F51 C~5Xcr 2019 06 02.298343 11 11 48.158 -09 58 15.26 23.0G 13FL28 F51 C~5Xcr 2020 01 01.648403 11 29 48.648 -12 08 45.41 22.6G 13FL28 F51 C~5Xcr 2020 04 17.347838 11 22 21.915 -11 44 52.37 23.5G 13FL28 F51 C~5Xcr 2020 05 11.278359 11 21 11.154 -11 30 43.51 23.9G 13FL28 F51 C~5Xcr 2020 12 17.592856 11 38 50.221 -13 19 46.17 24.1G 13FL28 F51 C~5Xcr 2020 12 21.599985 11 38 54.322 -13 22 23.09 23.6G 13FL28 F51 C~5Xcr 2020 12 22.629953 11 38 55.062 -13 23 01.60 23.0G 13FL28 F52 C~5Xcr 2021 02 11.498405 11 37 07.942 -13 36 16.11 23.4G 13FL28 F51 C~5Xcr 2021 02 17.526601 11 36 40.099 -13 35 20.68 22.9G 13FL28 F51 C~5Xcr 2021 03 04.109453 11 35 25.85 -13 31 09.1 13FL28 W84 C~5Xcr 2021 03 04.194388 11 35 25.38 -13 31 06.9 13FL28 W84 C~5Xcr 2021 04 09.393988 11 32 15.697 -13 12 02.51 23.5G 13FL28 F51 C~5Xcr 2021 05 09.321114 11 30 28.344 -12 53 30.72 21.9G 13FL28 F51 C~5Xcr 2022 02 26.455554 11 45 12.871 -14 51 56.06 23.8G 13FL28 F52 C~5Xcr 2022 03 27.353127 11 42 38.888 -14 39 26.16 23.2G 13FL28 F52 C~5Xcr
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 -0.10 0.00 -0.11
2 0.0000 0.00 -0.27 0.00 -0.14
3 0.0001 0.00 -0.03 0.00 -0.20
4 0.0001 0.00 0.10 0.00 -0.08
5 0.0138 0.00 -0.13 0.00 -0.21
6 0.0139 0.00 0.34 0.00 0.06
7 0.0139 0.00 0.01 0.00 -0.24
8 0.0139 0.00 0.04 0.00 0.17
9 0.0166 0.00 -0.19 0.00 -0.30
10 0.3363 0.00 0.22 0.00 -0.09
11 0.3418 0.00 -0.31 0.00 0.13
12 0.7398 0.00 -0.31 0.00 0.33
13 0.9693 0.00 0.07 0.00 0.29
14 0.9694 0.00 -0.16 0.00 -0.25
15 0.9694 0.00 0.04 0.00 0.15
16 0.9695 0.00 -0.09 0.00 -0.16
17 1.1386 0.00 0.07 0.00 0.04
18 2.1235 0.00 0.45 0.00 0.44
19 2.1238 0.00 0.48 0.00 0.63
20 2.1239 0.00 0.33 0.00 0.40
21 2.1263 0.00 0.34 0.00 0.68
22 2.1675 0.00 0.03 0.00 -0.05
23 2.1675 0.00 -0.04 0.00 0.02
24 2.1731 0.00 -0.04 0.00 -0.16
25 2.1731 0.00 -0.13 0.00 -0.19
26 3.1502 0.00 -0.09 0.00 -0.15
27 3.1556 0.00 -0.10 0.00 -0.28
28 4.0575 0.00 0.01 0.00 -0.21
29 4.8684 0.00 -0.10 0.00 -0.18
30 4.8685 0.00 0.18 0.00 -0.12
31 4.8685 0.00 0.17 0.00 -0.20
32 4.9504 0.00 -0.04 0.00 0.00
33 4.9641 0.00 0.04 0.00 -0.10
34 4.9641 0.00 0.14 0.00 -0.08
35 4.9642 0.00 -0.33 0.00 0.05
36 5.1635 0.00 -0.20 0.00 -0.03
37 5.2481 0.00 -0.06 0.00 0.07
38 5.2481 0.00 0.08 0.00 0.05
39 5.2481 0.00 -0.11 0.00 -0.12
40 5.2482 0.00 -0.17 0.00 -0.13
41 5.9909 0.00 -0.21 0.00 0.24
42 6.0856 0.00 -0.08 0.00 -0.01
43 6.0856 0.00 -0.14 0.00 -0.04
44 7.2954 0.00 0.05 0.00 -0.07
45 7.9295 0.00 -0.20 0.00 0.19
46 7.9511 0.00 0.18 0.00 -0.05
47 7.9511 0.00 -0.08 0.00 -0.26
48 8.0169 0.00 0.04 0.00 0.04
49 8.1860 0.00 -0.12 0.00 0.06
50 8.2490 0.00 0.16 0.00 0.03
51 8.3365 0.00 -0.01 0.00 -0.12
52 8.9206 0.00 0.12 0.00 -0.08
53 9.2127 0.00 -0.18 0.00 0.19
54 9.2782 0.00 -0.19 0.00 -0.03
55 9.8814 0.00 0.10 0.00 -0.13
56 9.8924 0.00 0.24 0.00 0.05
57 9.8952 0.00 0.22 0.00 0.03
58 10.0345 0.00 0.13 0.00 -0.03
59 10.0510 0.00 -0.51 0.00 -0.06
60 10.0909 0.00 0.06 0.00 -0.02
61 10.0911 0.00 -0.09 0.00 0.28
62 10.1902 0.00 0.26 0.00 -0.25
63 10.2722 0.00 0.34 0.00 0.23
64 11.0747 0.00 -0.04 0.00 0.04
65 11.1539 0.00 -0.16 0.00 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.
13FL28 quality flag:3 Type: CENTAURS CENTAURS CENTAURS axisobj 358.317 358.297 358.336 ecceobj 0.910 0.910 0.910 incobj 15.816 15.816 15.816 qmin 28.704 28.677 28.635 qmax 904.052 936.477 838.806 amean 385.770 388.756 370.590 amin 343.354 345.563 337.409 amax 468.069 484.335 435.320 emean 0.917 0.917 0.913 emin 0.902 0.901 0.900 emax 0.932 0.934 0.927 imean 16.744 16.762 16.743 imin 15.921 16.043 15.894 imax 17.962 17.939 17.949 excite_mean 0.961 0.962 0.958 fracstop 1.000 1.000 1.000 cjmean 2.812 2.812 2.813 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 239.8 239.3 240.2 kozaiamp 17.7 16.2 18.3