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: 07VK302 # Created Fri Apr 26 01:13:02 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 29 observations of 29 # Arc: 10.15y # First observation: 2007/11/11 # Last observation: 2018/01/05 # Chi-squared of fit: 10.14 DOF: 52 RMS: 0.10 # Min/Max residuals: -0.27 0.28 # Exact a, adot, b, bdot, g, gdot: 1.207581E-05 1.863467E-02 5.684661E-06 7.537620E-03 2.195551E-02 4.115490E-04 # Covariance matrix: 1.2730E-13 -2.8932E-14 6.2668E-16 -5.8502E-15 3.3521E-14 -8.0445E-14 -2.8932E-14 9.0620E-14 -8.9185E-15 3.5560E-14 1.2967E-14 4.8832E-13 6.2668E-16 -8.9185E-15 1.2114E-13 -1.6907E-14 -9.0638E-15 -5.0873E-14 -5.8502E-15 3.5560E-14 -1.6907E-14 1.6897E-14 9.2284E-15 1.9779E-13 3.3521E-14 1.2967E-14 -9.0638E-15 9.2284E-15 2.8965E-13 1.2586E-13 -8.0445E-14 4.8832E-13 -5.0873E-14 1.9779E-13 1.2586E-13 2.7160E-12 # lat0 lon0 xBary yBary zBary JD0 -15.340437 28.393058 -0.339920 -0.247058 -0.901022 2454415.618444 # Heliocentric elements and errors Epoch: 2454416.5000 = 2007/11/12 Mean Anomaly: 115.08209 +/- 0.150 Argument of Peri: 205.94622 +/- 0.141 Long of Asc Node: 61.27672 +/- 0.000 Inclination: 26.59125 +/- 0.000 Eccentricity: 0.03491165 +/- 0.0001 Semi-Major Axis: 45.72553214 +/- 0.0045 Time of Perihelion: 2418313.6208 +/- 47.3 Perihelion: 44.12917822 +/- 0.0054 Aphelion: 47.32188605 +/- 0.0056 Period (y) 309.2049 +/- 0.05 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 39.29967805 +/- 0.0009 Ecliptic Y 21.62547962 +/- 0.0005 Ecliptic Z -12.04932573 +/- 0.0003 Ecliptic XDOT -0.00083639 +/- 0.0000 Ecliptic YDOT 0.00218492 +/- 0.0000 Ecliptic ZDOT 0.00089277 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 46.44685580 +/- 0.0008 Geocenter to KBO 45.54668474 +/- 0.0011 # Hcoef: 6.94
The following table shows the complete astrometric record for 07VK302. 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 (07VK302) followed by the observatory code and reference code for the source of the astrometry.
2007 11 11.11769 02 07 11.54 -03 27 27.9 23.2R 07VK302 807 Cx2667 2007 11 13.06886 02 07 03.33 -03 27 49.1 23.6R 07VK302 807 Cx2667 2007 11 13.10366 02 07 03.19 -03 27 49.5 23.0I 07VK302 807 Cx2667 2007 11 15.07472 02 06 55.00 -03 28 08.7 23.0R 07VK302 807 Cx2667 2007 11 15.10808 02 06 54.86 -03 28 09.1 22.9I 07VK302 807 Cx2667 2007 11 17.09917 02 06 46.73 -03 28 26.4 23.4R 07VK302 807 Cx2667 2007 11 17.11081 02 06 46.68 -03 28 26.6 23.0I 07VK302 807 Cx2667 2007 11 19.25820 02 06 38.02 -03 28 43.1 23.3R 07VK302 807 Cx2667 2007 12 03.18042 02 05 46.45 -03 29 29.7 23.4R 07VK302 807 Cx2667 2007 12 07.08460 02 05 33.69 -03 29 22.9 23.5R 07VK302 807 Cx2667 2007 12 07.11403 02 05 33.58 -03 29 22.6 22.9I 07VK302 807 Cx2667 2007 12 13.12667 02 05 15.71 -03 28 54.8 23.5R 07VK302 807 Cx2667 2013 11 08.23010 02 27 41.066 +01 13 14.42 22.9r 07VK302 W84 C~4yHG 2013 11 23.21306 02 26 37.727 +01 10 26.62 23.0i 07VK302 W84 C~4yHG 2014 10 21.30882 02 32 22.899 +02 04 51.54 23.8r 07VK302 W84 C~4yHG 2016 09 27.49201 02 40 37.24 +03 45 15.3 24.1g 07VK302 568 C~2eAJ 2016 09 27.61245 02 40 36.83 +03 45 12.8 24.2g 07VK302 568 C~2eAJ 2016 09 28.50135 02 40 33.81 +03 44 54.7 24.2g 07VK302 568 C~2eAJ 2016 09 28.54927 02 40 33.64 +03 44 53.7 24.1g 07VK302 568 C~2eAJ 2016 09 29.51325 02 40 30.32 +03 44 34.1 24.2g 07VK302 568 C~2eAJ 2016 09 29.56047 02 40 30.15 +03 44 33.1 24.0g 07VK302 568 C~2eAJ 2016 09 29.63378 02 40 29.89 +03 44 31.6 24.1g 07VK302 568 C~2eAJ 2017 10 30.22222 02 41 48.769 +04 20 54.94 22.7i 07VK302 W84 C~4yHG 2017 11 15.14825 02 40 38.510 +04 16 58.55 23.2i 07VK302 W84 C~4yHG 2017 11 15.14962 02 40 38.500 +04 16 58.39 24.0r 07VK302 W84 C~4yHG 2017 11 16.18058 02 40 34.025 +04 16 45.72 23.7g 07VK302 W84 C~4yHG 2017 12 08.03933 02 39 06.193 +04 13 52.74 23.5i 07VK302 W84 C~4yHG 2018 01 05.06124 02 37 49.663 +04 15 24.39 23.6r 07VK302 W84 C~4yHG 2018 01 05.06261 02 37 49.657 +04 15 24.38 24.2g 07VK302 W84 C~4yHG
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 0.28 0.00 0.05
2 0.0053 0.00 -0.01 0.00 -0.07
3 0.0054 0.00 0.11 0.00 -0.11
4 0.0108 0.00 -0.11 0.00 0.03
5 0.0109 0.00 -0.11 0.00 -0.06
6 0.0164 0.00 0.12 0.00 0.11
7 0.0164 0.00 0.09 0.00 0.01
8 0.0223 0.00 -0.02 0.00 0.03
9 0.0604 0.00 -0.06 0.00 -0.19
10 0.0711 0.00 -0.05 0.00 -0.06
11 0.0712 0.00 -0.27 0.00 0.16
12 0.0876 0.00 0.07 0.00 0.14
13 5.9935 0.00 0.10 0.00 0.19
14 6.0345 0.00 0.08 0.00 -0.24
15 6.9437 0.00 -0.14 0.00 -0.15
16 8.8799 0.00 -0.03 0.00 0.10
17 8.8802 0.00 0.05 0.00 0.05
18 8.8826 0.00 -0.03 0.00 0.05
19 8.8828 0.00 -0.06 0.00 0.03
20 8.8854 0.00 0.01 0.00 0.08
21 8.8855 0.00 -0.03 0.00 0.04
22 8.8857 0.00 -0.03 0.00 0.04
23 9.9688 0.00 -0.01 0.00 -0.17
24 10.0124 0.00 0.07 0.00 0.03
25 10.0124 0.00 0.01 0.00 -0.12
26 10.0152 0.00 0.12 0.00 -0.10
27 10.0751 0.00 0.02 0.00 0.11
28 10.1518 0.00 0.02 0.00 0.05
29 10.1518 0.00 -0.03 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.
07VK302 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 46.143 46.143 46.143 ecceobj 0.030 0.030 0.030 incobj 26.483 26.483 26.483 qmin 43.628 43.627 43.628 qmax 48.234 48.220 48.239 amean 45.839 45.838 45.839 amin 45.490 45.494 45.487 amax 46.205 46.204 46.204 emean 0.034 0.034 0.034 emin 0.024 0.024 0.024 emax 0.044 0.044 0.044 imean 25.345 25.345 25.345 imin 25.121 25.123 25.120 imax 25.578 25.578 25.577 excite_mean 0.429 0.429 0.429 fracstop 1.000 1.000 1.000 cjmean 2.886 2.886 2.886 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 197.6 197.8 197.7 kozaiamp 180.0 179.9 179.9