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: 09YR26 # Created Fri Apr 19 01:13:14 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 110 observations of 110 # Arc: 13.97y # First observation: 2009/12/17 # Last observation: 2023/12/07 # Chi-squared of fit: 47.74 DOF: 214 RMS: 0.12 # Min/Max residuals: -0.56 0.34 # Exact a, adot, b, bdot, g, gdot: 1.600029E-05 2.495259E-02 5.559090E-06 7.806429E-03 2.576390E-02 1.005438E-03 # Covariance matrix: 1.4030E-13 -3.2429E-14 2.3845E-14 -8.0477E-15 -8.8914E-15 -6.4986E-14 -3.2429E-14 1.0624E-14 -9.3976E-15 3.1196E-15 1.2891E-14 2.5058E-14 2.3845E-14 -9.3976E-15 7.3132E-14 -9.7536E-15 -1.5319E-14 -2.4321E-14 -8.0477E-15 3.1196E-15 -9.7536E-15 1.8910E-15 4.6927E-15 8.0552E-15 -8.8914E-15 1.2891E-14 -1.5319E-14 4.6927E-15 9.1762E-14 3.6678E-14 -6.4986E-14 2.5058E-14 -2.4321E-14 8.0552E-15 3.6678E-14 6.4657E-14 # lat0 lon0 xBary yBary zBary JD0 -7.148964 97.627859 0.204680 -0.120124 -0.957893 2455182.888956 # Heliocentric elements and errors Epoch: 2455182.5000 = 2009/12/17 Mean Anomaly: 42.64478 +/- 0.026 Argument of Peri: 290.87149 +/- 0.029 Long of Asc Node: 118.55888 +/- 0.000 Inclination: 18.66910 +/- 0.000 Eccentricity: 0.05139961 +/- 0.0000 Semi-Major Axis: 41.27672716 +/- 0.0019 Time of Perihelion: 2443708.3711 +/- 7.0 Perihelion: 39.15511940 +/- 0.0020 Aphelion: 43.39833492 +/- 0.0022 Period (y) 265.1955 +/- 0.02 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -5.03424517 +/- 0.0001 Ecliptic Y 39.15242518 +/- 0.0004 Ecliptic Z -4.83018984 +/- 0.0001 Ecliptic XDOT -0.00265282 +/- 0.0000 Ecliptic YDOT -0.00013912 +/- 0.0000 Ecliptic ZDOT 0.00080975 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 39.76914596 +/- 0.0004 Geocenter to KBO 38.81400817 +/- 0.0005 # Hcoef: 5.87
The following table shows the complete astrometric record for 09YR26. 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 (09YR26) followed by the observatory code and reference code for the source of the astrometry.
2009 12 17.38819 06 31 30.807 +16 04 55.06 21.6G 09YR26 F51 C~344s 2009 12 17.39688 06 31 30.760 +16 04 55.27 22.2G 09YR26 F51 C~344s 2010 01 11.33068 06 29 16.233 +16 08 32.42 21.5G 09YR26 F51 C~344s 2010 01 11.33971 06 29 16.200 +16 08 32.62 21.6G 09YR26 F51 C~344s 2010 01 24.47324 06 28 10.346 +16 11 10.07 22.1G 09YR26 F51 C~344s 2010 11 08.62274 06 40 20.553 +16 24 49.58 21.8G 09YR26 F51 C~344s 2011 10 01.61218 06 46 52.431 +16 47 49.06 22.6G 09YR26 F51 C~344s 2011 10 01.62369 06 46 52.487 +16 47 49.03 21.6G 09YR26 F51 C~344s 2011 10 13.59379 06 46 58.984 +16 46 39.01 21.6G 09YR26 F51 C~344s 2012 01 11.49261 06 41 24.768 +16 51 45.46 21.1G 09YR26 F51 C~344s 2012 01 25.29113 06 40 14.183 +16 54 40.76 22.7G 09YR26 F51 C~344s 2012 01 25.30440 06 40 14.114 +16 54 40.77 21.8G 09YR26 F51 C~344s 2012 01 25.32168 06 40 14.028 +16 54 41.10 21.7G 09YR26 F51 C~344s 2012 04 16.24698 06 38 21.053 +17 13 23.51 22.4G 09YR26 F51 C~344s 2012 10 28.52317 06 52 44.503 +17 05 21.85 21.3G 09YR26 F51 C~344s 2013 12 30.38276 06 54 38.808 +17 29 49.33 21.8G 09YR26 F51 C~344s 2013 12 30.39792 06 54 38.731 +17 29 49.38 21.5G 09YR26 F51 C~344s 2013 12 30.41309 06 54 38.639 +17 29 49.66 22.1G 09YR26 F51 C~344s 2014 01 10.31896 06 53 39.392 +17 32 00.66 21.5G 09YR26 F51 C~344s 2014 01 10.33271 06 53 39.318 +17 32 00.87 21.7G 09YR26 F51 C~344s 2014 11 26.44207 07 03 30.417 +17 43 41.94 21.8G 09YR26 F51 C~344s 2014 11 26.45471 07 03 30.372 +17 43 42.23 22.0G 09YR26 F51 C~344s 2014 11 26.46737 07 03 30.309 +17 43 42.25 22.3G 09YR26 F51 C~344s 2014 11 26.48003 07 03 30.266 +17 43 42.33 21.9G 09YR26 F51 C~344s 2015 01 13.33687 06 59 31.030 +17 51 42.08 21.7G 09YR26 F51 C~344s 2015 01 13.35042 06 59 30.957 +17 51 42.30 21.9G 09YR26 F51 C~344s 2015 01 13.36396 06 59 30.887 +17 51 42.40 21.7G 09YR26 F51 C~344s 2015 01 13.37743 06 59 30.808 +17 51 42.58 21.6G 09YR26 F51 C~344s 2015 01 16.32888 06 59 15.053 +17 52 23.17 21.6G 09YR26 F51 C~344s 2015 01 16.34104 06 59 14.992 +17 52 23.20 21.7G 09YR26 F51 C~344s 2015 01 16.35319 06 59 14.922 +17 52 23.53 21.7G 09YR26 F51 C~344s 2015 01 16.36543 06 59 14.863 +17 52 23.65 21.9G 09YR26 F51 C~344s 2015 01 20.28594 06 58 54.269 +17 53 18.57 21.7G 09YR26 F51 C~344s 2015 01 20.29668 06 58 54.220 +17 53 18.74 21.7G 09YR26 F51 C~344s 2015 01 20.30760 06 58 54.157 +17 53 18.94 21.8G 09YR26 F51 C~344s 2015 01 20.31841 06 58 54.106 +17 53 19.05 21.7G 09YR26 F51 C~344s 2015 10 26.53817 07 10 49.247 +18 00 02.28 22.0G 09YR26 F51 C~344s 2015 12 08.65054 07 08 44.778 +18 02 59.59 21.9G 09YR26 F51 C~344s 2016 01 05.51629 07 06 21.568 +18 08 11.85 22.1G 09YR26 F51 C~344s 2016 01 05.52984 07 06 21.490 +18 08 12.19 22.1G 09YR26 F51 C~344s 2016 01 05.54340 07 06 21.428 +18 08 12.67 22.2G 09YR26 F51 C~344s 2016 01 05.55699 07 06 21.352 +18 08 12.29 21.9G 09YR26 F51 C~344s 2016 01 16.46117 07 05 22.350 +18 10 43.96 21.3G 09YR26 F51 C~344s 2016 01 16.47208 07 05 22.310 +18 10 44.04 21.4G 09YR26 F51 C~344s 2016 01 16.48291 07 05 22.243 +18 10 44.16 21.6G 09YR26 F51 C~344s 2016 01 16.49371 07 05 22.175 +18 10 44.19 21.8G 09YR26 F51 C~344s 2016 02 05.27785 07 03 43.409 +18 15 38.63 21.9G 09YR26 F51 C~344s 2016 02 05.29205 07 03 43.338 +18 15 38.93 22.2G 09YR26 F51 C~344s 2016 02 05.30630 07 03 43.282 +18 15 39.15 21.9G 09YR26 F51 C~344s 2016 02 05.32064 07 03 43.205 +18 15 39.44 22.1G 09YR26 F51 C~344s 2017 01 27.46413 07 10 28.108 +18 31 19.55 21.9G 09YR26 F51 C~344s 2017 01 27.47677 07 10 28.032 +18 31 19.68 22.1G 09YR26 F51 C~344s 2017 01 27.48941 07 10 27.970 +18 31 20.03 22.1G 09YR26 F51 C~344s 2017 01 27.50207 07 10 27.902 +18 31 20.25 21.7G 09YR26 F51 C~344s 2017 12 12.43305 07 20 36.589 +18 37 20.07 21.9G 09YR26 F51 C~344s 2017 12 12.43369 07 20 36.593 +18 37 20.01 21.8G 09YR26 F51 C~344s 2017 12 12.44343 07 20 36.547 +18 37 20.01 21.7G 09YR26 F51 C~344s 2017 12 12.44407 07 20 36.524 +18 37 20.16 21.7G 09YR26 F51 C~344s 2017 12 12.45388 07 20 36.495 +18 37 20.23 21.9G 09YR26 F51 C~344s 2017 12 12.45453 07 20 36.482 +18 37 20.28 21.9G 09YR26 F51 C~344s 2017 12 12.46437 07 20 36.445 +18 37 20.31 22.1G 09YR26 F51 C~344s 2017 12 12.46501 07 20 36.426 +18 37 20.45 21.8G 09YR26 F51 C~344s 2017 12 23.40461 07 19 42.556 +18 39 32.49 21.9G 09YR26 F51 C~344s 2017 12 23.41745 07 19 42.488 +18 39 32.65 21.8G 09YR26 F51 C~344s 2017 12 23.43031 07 19 42.417 +18 39 32.84 22.1G 09YR26 F51 C~344s 2017 12 23.44330 07 19 42.349 +18 39 32.99 21.6G 09YR26 F51 C~344s 2018 01 11.49998 07 18 00.374 +18 44 03.85 22.3G 09YR26 F51 C~344s 2018 01 11.51313 07 18 00.316 +18 44 04.09 21.8G 09YR26 F51 C~344s 2018 01 11.52628 07 18 00.222 +18 44 04.20 21.8G 09YR26 F51 C~344s 2018 01 11.53941 07 18 00.157 +18 44 04.45 21.5G 09YR26 F51 C~344s 2018 01 20.31949 07 17 12.990 +18 46 20.32 21.6G 09YR26 F51 C~344s 2018 01 20.33245 07 17 12.917 +18 46 20.42 21.8G 09YR26 F51 C~344s 2018 01 20.34536 07 17 12.847 +18 46 20.75 21.7G 09YR26 F51 C~344s 2018 01 20.35827 07 17 12.775 +18 46 20.89 21.7G 09YR26 F51 C~344s 2018 01 22.45707 07 17 01.718 +18 46 53.91 21.2G 09YR26 F51 C~344s 2018 01 23.46045 07 16 56.474 +18 47 09.75 22.0G 09YR26 F51 C~344s 2018 02 04.27658 07 15 57.699 +18 50 17.24 21.3G 09YR26 F51 C~344s 2018 02 04.28998 07 15 57.634 +18 50 17.29 21.4G 09YR26 F51 C~344s 2018 02 18.23436 07 14 57.996 +18 53 53.27 22.0G 09YR26 F51 C~344s 2018 02 18.24862 07 14 57.906 +18 53 54.12 21.4G 09YR26 F51 C~344s 2020 12 09.407360 07 39 05.799 +19 21 27.71 21.8G 09YR26 G37 C~4U4M 2020 12 09.458740 07 39 05.569 +19 21 28.61 09YR26 G37 C~4U4M 2020 12 09.503420 07 39 05.385 +19 21 29.08 09YR26 G37 C~4U4M 2020 12 24.53416 07 37 55.347 +19 25 02.16 22.0w 09YR26 F51 C~4NWY 2020 12 24.54766 07 37 55.262 +19 25 02.20 22.0w 09YR26 F51 C~4NWY 2020 12 24.56120 07 37 55.206 +19 25 02.48 21.8w 09YR26 F51 C~4NWY 2020 12 24.57476 07 37 55.139 +19 25 02.68 21.8w 09YR26 F51 C~4NWY 2021 01 15.47132 07 35 59.093 +19 31 05.29 21.5w 09YR26 F52 C~4U4M 2021 01 15.48299 07 35 59.011 +19 31 05.56 21.6w 09YR26 F52 C~4U4M 2021 01 15.49465 07 35 58.988 +19 31 05.61 21.7w 09YR26 F52 C~4U4M 2021 01 15.50627 07 35 58.913 +19 31 05.89 21.6w 09YR26 F52 C~4U4M 2021 02 09.25486 07 33 52.206 +19 38 12.65 21.7w 09YR26 F51 C~4Z0P 2021 02 09.26765 07 33 52.166 +19 38 12.75 21.6w 09YR26 F51 C~4Z0P 2023 01 13.357361 07 48 29.382 +19 56 54.05 21.6w 09YR26 F52 C~6B6C 2023 01 13.368948 07 48 29.316 +19 56 54.38 21.7w 09YR26 F52 C~6B6C 2023 01 13.380529 07 48 29.241 +19 56 54.72 21.7w 09YR26 F52 C~6B6C 2023 01 13.392206 07 48 29.182 +19 56 54.72 21.6w 09YR26 F52 C~6B6C 2023 09 25.617865 07 57 47.543 +19 53 18.13 21.9w 09YR26 F51 C~7Ahf 2023 09 25.622366 07 57 47.550 +19 53 18.05 21.7w 09YR26 F51 C~7Ahf 2023 09 25.627431 07 57 47.548 +19 53 18.37 21.9w 09YR26 F51 C~7Ahf 2023 11 18.515472 07 58 28.838 +19 54 26.64 21.5w 09YR26 F52 C~7WzY 2023 11 18.528372 07 58 28.819 +19 54 26.80 21.6w 09YR26 F52 C~7WzY 2023 11 18.541311 07 58 28.773 +19 54 26.92 21.7w 09YR26 F52 C~7WzY 2023 12 04.439953 07 57 45.032 +19 57 29.48 21.7w 09YR26 F52 C~7WzY 2023 12 04.452188 07 57 44.992 +19 57 29.44 21.7w 09YR26 F52 C~7WzY 2023 12 04.476751 07 57 44.909 +19 57 29.77 21.7w 09YR26 F52 C~7WzY 2023 12 07.472994 07 57 34.209 +19 58 11.31 21.6w 09YR26 F52 C~7WzY 2023 12 07.484584 07 57 34.177 +19 58 11.42 21.6w 09YR26 F52 C~7WzY 2023 12 07.496211 07 57 34.123 +19 58 11.46 21.6w 09YR26 F52 C~7WzY 2023 12 07.507843 07 57 34.072 +19 58 11.82 21.8w 09YR26 F52 C~7WzY
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 -0.16 0.00 -0.15
2 0.0000 0.00 -0.16 0.00 0.00
3 0.0683 0.00 -0.22 0.00 0.04
4 0.0683 0.00 0.01 0.00 0.14
5 0.1043 0.00 0.24 0.00 -0.04
6 0.8932 0.00 -0.11 0.00 -0.03
7 1.7884 0.00 -0.40 0.00 0.02
8 1.7885 0.00 0.25 0.00 0.07
9 1.8212 0.00 0.17 0.00 0.04
10 2.0674 0.00 0.09 0.00 -0.15
11 2.1051 0.00 0.06 0.00 0.11
12 2.1052 0.00 -0.00 0.00 -0.06
13 2.1052 0.00 -0.01 0.00 0.04
14 2.3295 0.00 0.25 0.00 -0.15
15 2.8642 0.00 0.22 0.00 0.02
16 4.0356 0.00 -0.07 0.00 0.12
17 4.0356 0.00 0.03 0.00 -0.00
18 4.0357 0.00 -0.10 0.00 0.11
19 4.0655 0.00 -0.07 0.00 0.01
20 4.0656 0.00 -0.06 0.00 0.05
21 4.9420 0.00 -0.04 0.00 -0.24
22 4.9420 0.00 0.03 0.00 -0.03
23 4.9420 0.00 -0.16 0.00 -0.08
24 4.9421 0.00 -0.05 0.00 -0.07
25 5.0731 0.00 0.01 0.00 0.00
26 5.0731 0.00 0.02 0.00 0.04
27 5.0732 0.00 0.08 0.00 -0.05
28 5.0732 0.00 0.00 0.00 -0.05
29 5.0813 0.00 -0.06 0.00 0.05
30 5.0813 0.00 0.01 0.00 -0.09
31 5.0814 0.00 -0.06 0.00 0.07
32 5.0814 0.00 0.05 0.00 0.02
33 5.0921 0.00 -0.04 0.00 -0.04
34 5.0922 0.00 0.08 0.00 -0.03
35 5.0922 0.00 -0.00 0.00 0.02
36 5.0922 0.00 0.09 0.00 -0.03
37 5.8567 0.00 0.08 0.00 0.10
38 5.9747 0.00 0.01 0.00 0.18
39 6.0510 0.00 -0.03 0.00 -0.16
40 6.0510 0.00 -0.08 0.00 0.01
41 6.0511 0.00 0.11 0.00 0.31
42 6.0511 0.00 0.10 0.00 -0.25
43 6.0810 0.00 -0.10 0.00 0.18
44 6.0810 0.00 0.19 0.00 0.11
45 6.0810 0.00 0.07 0.00 0.08
46 6.0811 0.00 -0.08 0.00 -0.05
47 6.1352 0.00 0.00 0.00 -0.11
48 6.1353 0.00 -0.08 0.00 -0.03
49 6.1353 0.00 0.06 0.00 -0.03
50 6.1353 0.00 -0.10 0.00 0.04
51 7.1131 0.00 0.21 0.00 -0.05
52 7.1132 0.00 0.04 0.00 -0.11
53 7.1132 0.00 0.07 0.00 0.05
54 7.1132 0.00 0.01 0.00 0.08
55 7.9864 0.00 0.01 0.00 0.06
56 7.9864 0.00 0.11 0.00 -0.00
57 7.9865 0.00 0.12 0.00 -0.11
58 7.9865 0.00 -0.18 0.00 0.03
59 7.9865 0.00 0.08 0.00 -0.01
60 7.9865 0.00 -0.07 0.00 0.03
61 7.9865 0.00 0.08 0.00 -0.05
62 7.9865 0.00 -0.16 0.00 0.08
63 8.0165 0.00 0.03 0.00 -0.04
64 8.0165 0.00 0.02 0.00 -0.04
65 8.0165 0.00 -0.04 0.00 -0.02
66 8.0166 0.00 -0.04 0.00 -0.04
67 8.0688 0.00 0.03 0.00 0.04
68 8.0688 0.00 0.25 0.00 0.08
69 8.0688 0.00 -0.08 0.00 -0.01
70 8.0689 0.00 0.03 0.00 0.05
71 8.0929 0.00 0.05 0.00 0.03
72 8.0929 0.00 0.00 0.00 -0.08
73 8.0930 0.00 -0.01 0.00 0.05
74 8.0930 0.00 -0.05 0.00 -0.02
75 8.0988 0.00 -0.00 0.00 -0.04
76 8.1015 0.00 -0.08 0.00 -0.04
77 8.1338 0.00 0.02 0.00 0.13
78 8.1339 0.00 0.00 0.00 -0.03
79 8.1721 0.00 -0.04 0.00 -0.31
80 8.1721 0.00 -0.56 0.00 0.32
81 10.9788 0.00 0.04 0.00 -0.10
82 10.9790 0.00 -0.10 0.00 0.14
83 10.9791 0.00 0.02 0.00 0.05
84 11.0202 0.00 0.01 0.00 0.10
85 11.0203 0.00 -0.23 0.00 -0.06
86 11.0203 0.00 -0.03 0.00 0.01
87 11.0204 0.00 0.01 0.00 0.00
88 11.0803 0.00 -0.01 0.00 -0.01
89 11.0803 0.00 -0.28 0.00 0.06
90 11.0804 0.00 0.34 0.00 -0.09
91 11.0804 0.00 0.17 0.00 -0.01
92 11.1482 0.00 -0.16 0.00 -0.00
93 11.1482 0.00 0.15 0.00 -0.12
94 13.0732 0.00 0.11 0.00 -0.11
95 13.0732 0.00 0.07 0.00 0.01
96 13.0732 0.00 -0.11 0.00 0.13
97 13.0732 0.00 -0.03 0.00 -0.09
98 13.7720 0.00 0.14 0.00 -0.09
99 13.7720 0.00 0.02 0.00 -0.14
100 13.7720 0.00 -0.27 0.00 0.21
101 13.9196 0.00 0.09 0.00 -0.04
102 13.9196 0.00 0.21 0.00 0.00
103 13.9197 0.00 -0.07 0.00 -0.00
104 13.9632 0.00 -0.02 0.00 0.24
105 13.9632 0.00 0.03 0.00 0.03
106 13.9633 0.00 0.08 0.00 0.03
107 13.9715 0.00 -0.04 0.00 0.00
108 13.9715 0.00 0.13 0.00 -0.06
109 13.9715 0.00 -0.02 0.00 -0.18
110 13.9716 0.00 -0.12 0.00 0.01
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.
09YR26 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 41.611 41.611 41.611 ecceobj 0.058 0.058 0.058 incobj 18.631 18.631 18.631 qmin 38.501 38.502 38.495 qmax 44.449 44.463 44.465 amean 41.385 41.385 41.386 amin 41.076 41.075 41.072 amax 41.714 41.716 41.711 emean 0.053 0.053 0.053 emin 0.040 0.040 0.041 emax 0.066 0.066 0.067 imean 17.112 17.112 17.112 imin 16.496 16.496 16.496 imax 17.769 17.769 17.769 excite_mean 0.299 0.299 0.299 fracstop 1.000 1.000 1.000 cjmean 2.965 2.965 2.965 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 179.4 179.5 179.5 kozaiamp 180.0 180.0 180.0