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: 07RY326 # Created Sun Dec 22 02:09:01 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 41 observations of 41 # Arc: 16.00y # First observation: 2007/09/06 # Last observation: 2023/09/06 # Chi-squared of fit: 78.44 DOF: 76 RMS: 0.24 # Min/Max residuals: -0.61 0.51 # Exact a, adot, b, bdot, g, gdot: 1.858533E-05 2.756564E-02 -1.986736E-06 -3.559125E-03 2.699816E-02 -1.880385E-03 # Covariance matrix: 1.0738E-13 -3.5217E-14 -3.9246E-15 3.6253E-15 1.2675E-14 -6.1362E-14 -3.5217E-14 2.2596E-14 1.5396E-15 -2.5515E-15 -2.1562E-14 4.4475E-14 -3.9246E-15 1.5396E-15 6.6755E-14 -5.9113E-15 1.4823E-14 3.5147E-15 3.6253E-15 -2.5515E-15 -5.9113E-15 1.3215E-15 1.4177E-15 -5.2809E-15 1.2675E-14 -2.1562E-14 1.4823E-14 1.4177E-15 1.7411E-13 -4.1236E-14 -6.1362E-14 4.4475E-14 3.5147E-15 -5.2809E-15 -4.1236E-14 9.1707E-14 # lat0 lon0 xBary yBary zBary JD0 25.080386 -20.332082 -0.067531 0.426206 -0.910533 2454349.808964 # Heliocentric elements and errors Epoch: 2454350.5000 = 2007/09/07 Mean Anomaly: 294.70288 +/- 0.036 Argument of Peri: 178.50575 +/- 0.043 Long of Asc Node: 232.12745 +/- 0.000 Inclination: 25.49276 +/- 0.000 Eccentricity: 0.06679367 +/- 0.0000 Semi-Major Axis: 38.88975303 +/- 0.0026 Time of Perihelion: 2470417.7939 +/- 11.6 Perihelion: 36.29216363 +/- 0.0025 Aphelion: 41.48734243 +/- 0.0029 Period (y) 242.5275 +/- 0.02 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 32.42262329 +/- 0.0005 Ecliptic Y -11.94653539 +/- 0.0002 Ecliptic Z 15.70063990 +/- 0.0002 Ecliptic XDOT 0.00095910 +/- 0.0000 Ecliptic YDOT 0.00262646 +/- 0.0000 Ecliptic ZDOT -0.00040783 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 37.95338129 +/- 0.0004 Geocenter to KBO 37.03964276 +/- 0.0006 # Hcoef: 7.67
The following table shows the complete astrometric record for 07RY326. 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 (07RY326) followed by the observatory code and reference code for the source of the astrometry.
2007 09 06.30821 22 06 47.33 +15 17 29.5 23.4r 07RY326 568 C~1Q3b 2007 09 06.34967 22 06 47.12 +15 17 28.0 23.0r 07RY326 568 C~1Q3b 2007 09 06.39240 22 06 46.90 +15 17 26.5 23.2r 07RY326 568 C~1Q3b 2007 09 07.30971 22 06 42.48 +15 16 54.4 07RY326 568 C~1Q3b 2007 09 07.35120 22 06 42.25 +15 16 52.6 07RY326 568 C~1Q3b 2007 09 18.28930 22 05 50.86 +15 09 46.3 07RY326 675 C~1Q3b 2007 09 18.35062 22 05 50.60 +15 09 43.8 23.1R 07RY326 675 C~1Q3b 2008 08 30.31000 22 13 42.60 +15 45 57.3 23.1r 07RY326 568 C~1Q3b 2008 08 30.34093 22 13 42.44 +15 45 56.3 23.3r 07RY326 568 C~1Q3b 2008 08 30.37168 22 13 42.29 +15 45 55.3 23.5r 07RY326 568 C~1Q3b 2008 08 31.29246 22 13 37.66 +15 45 26.5 07RY326 568 C~1Q3b 2008 10 22.09351 22 10 14.14 +15 08 14.9 24.0r 07RY326 695 C~1Q3b 2008 10 22.16564 22 10 13.97 +15 08 11.2 24.2r 07RY326 695 C~1Q3b 2008 12 21.12701 22 11 10.77 +14 31 51.0 07RY326 695 C~1Q3b 2008 12 22.09216 22 11 14.63 +14 31 33.9 07RY326 695 C~1Q3b 2009 06 20.38697 22 24 45.67 +16 11 41.2 07RY326 695 C~1Q3b 2009 06 20.43475 22 24 45.60 +16 11 42.2 07RY326 695 C~1Q3b 2009 06 21.38489 22 24 44.15 +16 12 08.8 07RY326 695 C~1Q3b 2009 07 24.37520 22 23 08.02 +16 20 02.2 07RY326 675 C~1Q3b 2009 07 25.36454 22 23 03.95 +16 20 01.9 07RY326 675 C~1Q3b 2009 07 25.44550 22 23 03.61 +16 20 01.8 07RY326 675 C~1Q3b 2009 09 13.28594 22 19 01.78 +16 02 27.8 07RY326 568 C~1Q3b 2009 09 15.30538 22 18 52.14 +16 01 08.3 07RY326 568 C~1Q3b 2009 09 16.24435 22 18 47.73 +16 00 30.7 07RY326 568 C~1Q3b 2013 07 08.54488 22 50 06.25 +17 46 48.1 07RY326 568 C~1Q3b 2013 07 13.56887 22 49 52.92 +17 48 04.7 07RY326 568 C~1Q3b 2013 07 16.53328 22 49 44.12 +17 48 40.1 07RY326 568 C~1Q3b 2013 08 09.57929 22 48 10.18 +17 48 42.9 07RY326 568 C~1Q3b 2013 08 13.49714 22 47 51.91 +17 47 55.0 07RY326 568 C~1Q3b 2013 08 17.60928 22 47 32.12 +17 46 51.0 07RY326 568 C~1Q3b 2013 09 06.30071 22 45 52.56 +17 38 37.3 07RY326 568 C~1Q3b 2013 10 02.36635 22 43 47.33 +17 21 18.6 07RY326 568 C~1Q3b 2020 08 12.323240 23 35 32.675 +19 55 44.03 23.2G 07RY326 G37 C~43tg 2020 08 12.389450 23 35 32.407 +19 55 43.42 07RY326 G37 C~43tg 2020 08 12.459640 23 35 32.109 +19 55 42.84 07RY326 G37 C~43tg 2022 08 27.379710 23 48 31.359 +20 21 36.25 23.0G 07RY326 G37 C~5nF7 2022 08 27.413010 23 48 31.200 +20 21 35.63 07RY326 G37 C~5nF7 2022 08 27.447970 23 48 31.030 +20 21 35.03 07RY326 G37 C~5nF7 2023 09 06.389840 23 54 50.074 +20 31 25.38 22.9G 07RY326 G37 C~7AXl 2023 09 06.429160 23 54 49.860 +20 31 24.35 07RY326 G37 C~7AXl 2023 09 06.466880 23 54 49.669 +20 31 23.57 07RY326 G37 C~7AXl
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 -0.47 0.00 -0.21
2 0.0001 0.00 -0.51 0.00 -0.25
3 0.0002 0.00 -0.61 0.00 -0.25
4 0.0027 0.00 0.36 0.00 0.37
5 0.0029 0.00 0.01 0.00 0.06
6 0.0328 0.00 -0.09 0.00 -0.46
7 0.0330 0.00 0.19 0.00 -0.40
8 0.9829 0.00 -0.15 0.00 0.48
9 0.9830 0.00 -0.16 0.00 0.42
10 0.9831 0.00 -0.04 0.00 0.37
11 0.9856 0.00 0.22 0.00 0.31
12 1.1274 0.00 0.01 0.00 -0.01
13 1.1276 0.00 -0.17 0.00 -0.25
14 1.2918 0.00 0.31 0.00 0.33
15 1.2944 0.00 0.16 0.00 -0.37
16 1.7880 0.00 0.21 0.00 0.51
17 1.7882 0.00 0.25 0.00 0.15
18 1.7908 0.00 -0.29 0.00 0.09
19 1.8811 0.00 -0.08 0.00 -0.04
20 1.8838 0.00 0.10 0.00 -0.14
21 1.8840 0.00 0.15 0.00 -0.18
22 2.0205 0.00 0.44 0.00 0.37
23 2.0260 0.00 0.21 0.00 0.19
24 2.0286 0.00 0.36 0.00 0.22
25 5.8377 0.00 -0.14 0.00 -0.21
26 5.8515 0.00 -0.24 0.00 -0.32
27 5.8596 0.00 0.13 0.00 -0.14
28 5.9255 0.00 -0.16 0.00 -0.05
29 5.9362 0.00 -0.08 0.00 -0.36
30 5.9474 0.00 0.12 0.00 -0.29
31 6.0013 0.00 -0.22 0.00 -0.17
32 6.0727 0.00 0.05 0.00 -0.18
33 12.9336 0.00 -0.07 0.00 0.15
34 12.9338 0.00 0.07 0.00 -0.01
35 12.9340 0.00 0.02 0.00 -0.10
36 14.9735 0.00 -0.03 0.00 0.08
37 14.9736 0.00 -0.03 0.00 0.04
38 14.9737 0.00 -0.08 0.00 0.05
39 16.0002 0.00 0.18 0.00 0.07
40 16.0003 0.00 -0.04 0.00 -0.00
41 16.0004 0.00 -0.04 0.00 0.14
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.
07RY326 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 38.982 38.982 38.982 ecceobj 0.071 0.071 0.071 incobj 25.470 25.470 25.470 qmin 35.467 35.569 35.512 qmax 42.380 42.380 42.462 amean 38.863 38.868 38.867 amin 38.564 38.583 38.580 amax 39.191 39.192 39.193 emean 0.070 0.070 0.071 emin 0.058 0.059 0.060 emax 0.083 0.082 0.083 imean 26.780 26.785 26.784 imin 26.231 26.232 26.223 imax 27.316 27.317 27.317 excite_mean 0.456 0.456 0.456 fracstop 1.000 1.000 1.000 cjmean 2.798 2.798 2.798 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 187.6 186.2 188.9 kozaiamp 180.0 179.9 180.0