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: 13FH28 # Created Sun Dec 22 02:09:25 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 80 observations of 80 # Arc: 20.21y # First observation: 2001/02/20 # Last observation: 2021/05/09 # Chi-squared of fit: 452.12 DOF: 154 RMS: 0.42 # Min/Max residuals: -1.41 1.31 # Exact a, adot, b, bdot, g, gdot: 1.490672E-05 2.161352E-02 -3.249397E-06 -4.846446E-03 2.352392E-02 -3.099787E-03 # Covariance matrix: 4.5993E-13 -5.8562E-14 -4.3626E-14 8.9726E-15 -1.5109E-14 -7.6491E-14 -5.8562E-14 9.7232E-15 9.1357E-15 -1.8817E-15 5.3282E-15 1.5994E-14 -4.3626E-14 9.1357E-15 2.8075E-13 -2.1251E-14 4.9931E-15 1.7683E-14 8.9726E-15 -1.8817E-15 -2.1251E-14 1.8717E-15 -1.1003E-15 -3.6393E-15 -1.5109E-14 5.3282E-15 4.9931E-15 -1.1003E-15 5.9230E-14 8.1057E-15 -7.6491E-14 1.5994E-14 1.7683E-14 -3.6393E-15 8.1057E-15 3.0981E-14 # lat0 lon0 xBary yBary zBary JD0 -3.473886 157.756792 0.098739 -0.059859 -0.983466 2451960.753891 # Heliocentric elements and errors Epoch: 2451960.5000 = 2001/02/20 Mean Anomaly: 275.79334 +/- 0.018 Argument of Peri: 295.19658 +/- 0.012 Long of Asc Node: 322.80606 +/- 0.000 Inclination: 13.06560 +/- 0.000 Eccentricity: 0.13794737 +/- 0.0000 Semi-Major Axis: 43.27240567 +/- 0.0017 Time of Perihelion: 2476280.2408 +/- 7.0 Perihelion: 37.30309123 +/- 0.0015 Aphelion: 49.24172011 +/- 0.0020 Period (y) 284.6589 +/- 0.02 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -40.14485961 +/- 0.0004 Ecliptic Y 16.53096486 +/- 0.0002 Ecliptic Z -2.57595609 +/- 0.0000 Ecliptic XDOT -0.00059558 +/- 0.0000 Ecliptic YDOT -0.00247428 +/- 0.0000 Ecliptic ZDOT -0.00054097 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 43.49167436 +/- 0.0004 Geocenter to KBO 42.51003582 +/- 0.0004 # Hcoef: 6.16
The following table shows the complete astrometric record for 13FH28. 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 (13FH28) followed by the observatory code and reference code for the source of the astrometry.
2001 02 20.253148 10 32 32.10 +05 26 03.4 13FH28 645 C~1q9f 2001 02 20.253981 10 32 32.10 +05 26 03.4 13FH28 645 C~1q9f 2001 02 20.256470 10 32 32.09 +05 26 03.4 13FH28 645 C~1q9f 2011 03 30.36371 11 12 55.245 -01 44 44.45 22.7G 13FH28 F51 C~2kOt 2011 03 30.37699 11 12 55.195 -01 44 44.04 22.5G 13FH28 F51 C~2kOt 2011 03 30.39144 11 12 55.118 -01 44 43.80 22.3G 13FH28 F51 C~2kOt 2011 03 30.40471 11 12 55.065 -01 44 43.31 22.4G 13FH28 F51 C~2kOt 2011 06 30.27239 11 11 07.696 -01 25 33.14 23.2G 13FH28 F51 C~2kOt 2011 12 06.64192 11 22 42.455 -02 48 55.96 22.7G 13FH28 F51 C~2kOt 2012 02 28.48690 11 19 38.801 -02 44 17.25 22.3G 13FH28 F51 C~2kOt 2012 03 02.50017 11 19 25.090 -02 43 04.52 21.9G 13FH28 F51 C~2kOt 2012 03 20.36152 11 18 03.147 -02 35 14.98 22.8G 13FH28 F51 C~2kOt 2012 03 20.39078 11 18 03.009 -02 35 14.07 22.2G 13FH28 F51 C~2kOt 2012 03 20.40540 11 18 02.949 -02 35 13.88 22.3G 13FH28 F51 C~2kOt 2012 11 25.61177 11 26 47.504 -03 29 57.89 23.0G 13FH28 F51 C~2kOt 2013 02 03.58747 11 25 48.689 -03 38 21.44 22.5G 13FH28 F51 C~2kOt 2013 02 05.57605 11 25 41.457 -03 37 54.25 22.5G 13FH28 F51 C~2kOt 2013 03 06.41300 11 23 38.494 -03 28 07.02 22.4G 13FH28 F51 C~2kOt 2013 03 06.44224 11 23 38.367 -03 28 06.42 22.3G 13FH28 F51 C~2kOt 2013 03 06.45687 11 23 38.302 -03 28 05.89 22.5G 13FH28 F51 C~2kOt 2013 03 17.11892 11 22 49.094 -03 23 23.94 22.2r 13FH28 807 C~1Iuo 2013 03 17.18090 11 22 48.821 -03 23 22.56 13FH28 807 C~1Iuo 2013 03 17.24550 11 22 48.511 -03 23 20.56 13FH28 807 C~1Iuo 2013 04 05.32850 11 21 24.854 -03 14 31.63 22.2G 13FH28 F51 C~2kOt 2013 04 05.37166 11 21 24.658 -03 14 30.69 22.2G 13FH28 F51 C~2kOt 2013 05 07.97598 11 19 41.171 -03 01 17.32 22.4r 13FH28 807 C~1Iuo 2013 05 07.99657 11 19 41.113 -03 01 16.82 13FH28 807 C~1Iuo 2013 05 08.99976 11 19 39.083 -03 00 57.82 13FH28 807 C~1Iuo 2014 03 02.10588 11 28 32.20 -04 16 46.7 21.3g 13FH28 W84 C~2TH2 2014 03 02.19826 11 28 31.78 -04 16 44.3 21.4g 13FH28 W84 C~2TH2 2014 03 02.28869 11 28 31.38 -04 16 41.9 22.5g 13FH28 W84 C~2TH2 2014 03 02.38460 11 28 30.90 -04 16 40.1 20.0g 13FH28 W84 C~2TH2 2014 03 03.09565 11 28 27.70 -04 16 23.1 21.2g 13FH28 W84 C~2TH2 2014 03 03.18750 11 28 27.28 -04 16 20.7 23.0g 13FH28 W84 C~2TH2 2014 03 03.28772 11 28 26.80 -04 16 18.3 21.3g 13FH28 W84 C~2TH2 2014 03 03.39109 11 28 26.33 -04 16 15.9 21.1g 13FH28 W84 C~2TH2 2014 03 04.09687 11 28 23.11 -04 15 58.9 23.2g 13FH28 W84 C~2TH2 2014 03 04.19051 11 28 22.69 -04 15 56.2 21.9g 13FH28 W84 C~2TH2 2014 03 04.28102 11 28 22.27 -04 15 54.3 22.7g 13FH28 W84 C~2TH2 2014 03 04.38505 11 28 21.77 -04 15 51.7 21.9g 13FH28 W84 C~2TH2 2014 03 05.09456 11 28 18.56 -04 15 34.2 21.7g 13FH28 W84 C~2TH2 2014 03 05.20449 11 28 18.03 -04 15 31.5 21.7g 13FH28 W84 C~2TH2 2014 03 05.29775 11 28 17.61 -04 15 29.4 22.4g 13FH28 W84 C~2TH2 2014 03 24.40128 11 26 49.682 -04 07 01.34 22.3G 13FH28 F51 C~2kOt 2014 03 24.42586 11 26 49.558 -04 07 00.63 22.2G 13FH28 F51 C~2kOt 2014 03 24.43818 11 26 49.502 -04 07 00.23 22.7G 13FH28 F51 C~2kOt 2014 04 30.99871 11 24 28.127 -03 50 17.65 22.2r 13FH28 304 C~1Iuo 2014 05 01.98785 11 24 25.470 -03 49 55.21 13FH28 304 C~1Iuo 2014 05 24.30197 11 23 45.782 -03 43 09.95 22.5G 13FH28 F51 C~2kOt 2014 06 24.27860 11 24 00.459 -03 40 33.76 22.9G 13FH28 F51 C~2kOt 2014 11 28.64416 11 35 45.185 -05 01 53.55 22.3G 13FH28 F51 C~2kOt 2015 01 23.50815 11 35 30.616 -05 13 16.74 22.4G 13FH28 F51 C~2kOt 2015 02 25.50776 11 33 29.348 -05 05 40.31 22.3G 13FH28 F51 C~2kOt 2015 03 16.18589 11 32 03.74 -04 58 02.6 21.8R 13FH28 G37 C~1N7m 2015 03 16.25390 11 32 03.49 -04 57 59.3 13FH28 G37 C~1N7m 2015 05 06.35144 11 28 47.324 -04 35 09.52 22.5G 13FH28 F51 C~2kOt 2016 01 18.53705 11 40 19.151 -06 00 14.75 22.7G 13FH28 F51 C~2kOt 2016 01 18.54907 11 40 19.115 -06 00 14.94 22.5G 13FH28 F51 C~2kOt 2016 01 19.58742 11 40 16.815 -06 00 13.82 22.2G 13FH28 F51 C~2kOt 2016 02 10.48285 11 39 10.022 -05 57 24.37 22.6G 13FH28 F51 C~2kOt 2016 02 10.49393 11 39 09.971 -05 57 24.26 22.7G 13FH28 F51 C~2kOt 2016 02 10.50502 11 39 09.947 -05 57 24.04 22.7G 13FH28 F51 C~2kOt 2016 02 10.51610 11 39 09.906 -05 57 24.06 22.8G 13FH28 F51 C~2kOt 2016 04 02.32036 11 35 20.476 -05 36 59.35 22.3G 13FH28 F51 C~2kOt 2016 04 02.33286 11 35 20.408 -05 36 58.90 22.5G 13FH28 F51 C~2kOt 2016 04 02.34534 11 35 20.357 -05 36 58.57 22.0G 13FH28 F51 C~2kOt 2016 04 02.35781 11 35 20.293 -05 36 58.10 22.3G 13FH28 F51 C~2kOt 2017 01 26.56750 11 44 36.013 -06 46 46.96 22.6G 13FH28 F51 C~2kOt 2017 01 26.57951 11 44 35.990 -06 46 46.83 22.4G 13FH28 F51 C~2kOt 2017 02 03.59907 11 44 11.506 -06 45 48.56 22.8G 13FH28 F51 C~2kOt 2017 02 22.45570 11 42 58.995 -06 41 10.67 22.4G 13FH28 F51 C~2kOt 2017 02 25.51823 11 42 45.698 -06 40 09.24 22.3G 13FH28 F51 C~2kOt 2017 03 19.34004 11 41 05.438 -06 31 14.99 22.6G 13FH28 F51 C~2kOt 2017 03 19.35201 11 41 05.382 -06 31 14.49 22.3G 13FH28 F51 C~2kOt 2017 03 19.36398 11 41 05.317 -06 31 14.33 22.7G 13FH28 F51 C~2kOt 2017 03 29.35913 11 40 19.269 -06 26 32.46 22.6G 13FH28 F51 C~2kOt 2020 02 01.595879 11 58 33.495 -09 08 04.78 22.4G 13FH28 T12 C~3qKC 2021 05 09.299774 11 56 44.959 -09 18 09.89 22.2w 13FH28 F51 C~4n33 2021 05 09.312037 11 56 44.941 -09 18 09.48 22.0w 13FH28 F51 C~4n33 2021 05 09.324330 11 56 44.877 -09 18 09.63 22.2w 13FH28 F51 C~4n33
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 -0.07 0.00 0.03
2 0.0000 0.00 -0.02 0.00 0.01
3 0.0000 0.00 0.01 0.00 -0.05
4 10.1030 0.00 -0.13 0.00 -0.26
5 10.1030 0.00 -0.03 0.00 -0.21
6 10.1030 0.00 -0.25 0.00 -0.37
7 10.1031 0.00 -0.19 0.00 -0.24
8 10.3546 0.00 -0.42 0.00 -0.50
9 10.7909 0.00 -0.05 0.00 -0.42
10 11.0205 0.00 -0.12 0.00 -0.27
11 11.0287 0.00 0.12 0.00 -0.29
12 11.0776 0.00 0.05 0.00 -0.49
13 11.0777 0.00 -0.01 0.00 -0.39
14 11.0778 0.00 0.10 0.00 -0.60
15 11.7628 0.00 -0.35 0.00 -0.39
16 11.9544 0.00 -0.26 0.00 -0.24
17 11.9598 0.00 -0.20 0.00 -0.31
18 12.0388 0.00 -0.14 0.00 -0.32
19 12.0388 0.00 0.01 0.00 -0.46
20 12.0389 0.00 0.06 0.00 -0.30
21 12.0681 0.00 0.27 0.00 0.37
22 12.0682 0.00 0.52 0.00 0.06
23 12.0684 0.00 0.39 0.00 0.30
24 12.1207 0.00 -0.21 0.00 -0.22
25 12.1208 0.00 -0.45 0.00 -0.47
26 12.2101 0.00 0.31 0.00 -0.07
27 12.2101 0.00 0.10 0.00 0.03
28 12.2129 0.00 0.32 0.00 -0.21
29 13.0263 0.00 0.02 0.00 0.85
30 13.0265 0.00 0.11 0.00 1.06
31 13.0268 0.00 0.39 0.00 1.31
32 13.0271 0.00 -0.17 0.00 0.83
33 13.0290 0.00 0.17 0.00 0.82
34 13.0293 0.00 0.25 0.00 1.02
35 13.0295 0.00 0.03 0.00 1.00
36 13.0298 0.00 0.15 0.00 0.91
37 13.0317 0.00 -0.01 0.00 0.82
38 13.0320 0.00 0.22 0.00 1.24
39 13.0322 0.00 0.24 0.00 0.94
40 13.0325 0.00 -0.01 0.00 0.99
41 13.0345 0.00 0.38 0.00 1.11
42 13.0348 0.00 0.12 0.00 1.10
43 13.0350 0.00 0.35 0.00 0.90
44 13.0873 0.00 0.14 0.00 -0.24
45 13.0874 0.00 -0.02 0.00 -0.22
46 13.0874 0.00 -0.01 0.00 -0.16
47 13.1903 0.00 0.68 0.00 0.07
48 13.1930 0.00 0.47 0.00 0.04
49 13.2541 0.00 -0.40 0.00 -0.22
50 13.3389 0.00 -0.35 0.00 -0.22
51 13.7697 0.00 0.04 0.00 -0.54
52 13.9227 0.00 0.09 0.00 -0.47
53 14.0130 0.00 -0.06 0.00 -0.16
54 14.0642 0.00 -1.11 0.00 -1.41
55 14.0643 0.00 -0.06 0.00 0.06
56 14.2042 0.00 -0.43 0.00 -0.42
57 14.9084 0.00 0.22 0.00 -0.23
58 14.9084 0.00 0.08 0.00 -0.42
59 14.9113 0.00 0.15 0.00 -0.20
60 14.9712 0.00 -0.10 0.00 -0.16
61 14.9712 0.00 -0.22 0.00 -0.20
62 14.9713 0.00 0.05 0.00 -0.14
63 14.9713 0.00 0.08 0.00 -0.31
64 15.1131 0.00 -0.00 0.00 -0.37
65 15.1132 0.00 -0.19 0.00 -0.27
66 15.1132 0.00 -0.13 0.00 -0.30
67 15.1132 0.00 -0.26 0.00 -0.19
68 15.9324 0.00 -0.05 0.00 -0.33
69 15.9324 0.00 0.12 0.00 -0.26
70 15.9544 0.00 -0.04 0.00 -0.45
71 16.0060 0.00 -0.05 0.00 -0.19
72 16.0144 0.00 -0.09 0.00 -0.19
73 16.0742 0.00 -0.04 0.00 -0.32
74 16.0742 0.00 -0.03 0.00 -0.15
75 16.0742 0.00 -0.15 0.00 -0.32
76 16.1016 0.00 -0.28 0.00 -0.34
77 18.9469 0.00 0.01 0.00 -0.20
78 20.2137 0.00 -0.01 0.00 0.36
79 20.2137 0.00 0.25 0.00 0.45
80 20.2137 0.00 -0.18 0.00 -0.02
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.
13FH28 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 43.122 43.122 43.122 ecceobj 0.139 0.139 0.139 incobj 13.092 13.092 13.092 qmin 36.529 36.552 36.557 qmax 50.519 50.484 50.383 amean 43.331 43.338 43.323 amin 42.970 42.964 42.968 amax 43.766 43.769 43.724 emean 0.137 0.137 0.136 emin 0.122 0.122 0.122 emax 0.154 0.155 0.153 imean 14.368 14.373 14.370 imin 13.568 13.565 13.574 imax 15.015 15.026 15.013 excite_mean 0.283 0.284 0.283 fracstop 1.000 1.000 1.000 cjmean 2.996 2.996 2.996 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 179.5 179.2 179.4 kozaiamp 180.0 180.0 180.0