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: 00QH226 # Created Sat Apr 20 01:10:16 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 43 observations of 43 # Arc: 17.33y # First observation: 2000/08/25 # Last observation: 2017/12/23 # Chi-squared of fit: 25.81 DOF: 80 RMS: 0.14 # Min/Max residuals: -0.41 0.44 # Exact a, adot, b, bdot, g, gdot: 1.629186E-05 3.621733E-02 -5.491376E-07 1.733854E-03 3.105124E-02 4.069704E-03 # Covariance matrix: 2.0922E-13 -2.3565E-14 1.1573E-16 -5.0826E-16 -4.0839E-15 -1.7904E-14 -2.3565E-14 6.3082E-14 -6.9301E-16 3.0216E-15 3.0761E-14 1.0631E-13 1.1573E-16 -6.9301E-16 2.0747E-13 -1.3192E-14 -3.7339E-16 -1.1842E-15 -5.0826E-16 3.0216E-15 -1.3192E-14 1.1387E-15 1.3720E-15 5.1835E-15 -4.0839E-15 3.0761E-14 -3.7339E-16 1.3720E-15 8.9831E-14 4.6823E-14 -1.7904E-14 1.0631E-13 -1.1842E-15 5.1835E-15 4.6823E-14 1.8249E-13 # lat0 lon0 xBary yBary zBary JD0 -0.627791 -21.353768 0.116962 -0.011127 -1.000947 2451781.759453 # Heliocentric elements and errors Epoch: 2451782.5000 = 2000/08/26 Mean Anomaly: 26.68473 +/- 0.004 Argument of Peri: 308.24601 +/- 0.005 Long of Asc Node: 350.99747 +/- 0.000 Inclination: 2.80173 +/- 0.000 Eccentricity: 0.19296945 +/- 0.0000 Semi-Major Axis: 39.65252537 +/- 0.0018 Time of Perihelion: 2445022.2153 +/- 1.1 Perihelion: 32.00079917 +/- 0.0018 Aphelion: 47.30425157 +/- 0.0024 Period (y) 249.6977 +/- 0.02 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 30.88768443 +/- 0.0003 Ecliptic Y -12.19450922 +/- 0.0001 Ecliptic Z -0.35289670 +/- 0.0000 Ecliptic XDOT 0.00149124 +/- 0.0000 Ecliptic YDOT 0.00284819 +/- 0.0000 Ecliptic ZDOT 0.00014909 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 33.20956884 +/- 0.0003 Geocenter to KBO 32.20480274 +/- 0.0003 # Hcoef: 9.02
The following table shows the complete astrometric record for 00QH226. 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 (00QH226) followed by the observatory code and reference code for the source of the astrometry.
2000 08 25.25871 22 42 01.16 -08 54 36.4 00QH226 807 Ch1309 2000 08 29.12843 22 41 39.68 -08 56 41.6 00QH226 809 Cb8401 2000 08 29.22378 22 41 39.11 -08 56 44.8 00QH226 809 Cb8401 2000 08 30.10532 22 41 34.22 -08 57 13.8 00QH226 809 Cb8401 2000 08 30.19597 22 41 33.72 -08 57 16.3 00QH226 809 Cb8401 2000 08 30.27500 22 41 33.25 -08 57 19.2 23.9R 00QH226 809 Cb8401 2000 08 30.32187 22 41 32.98 -08 57 20.3 00QH226 809 Cb8401 2000 08 30.36952 22 41 32.73 -08 57 22.1 00QH226 809 Cb8401 2015 06 23.54553 00 28 26.244 +03 52 57.98 24.8r 00QH226 568 C~2lRJ 2015 07 14.59595 00 28 39.684 +03 55 12.31 24.6r 00QH226 568 C~2lRJ 2015 07 19.57506 00 28 36.329 +03 55 01.95 24.7r 00QH226 568 C~2lRJ 2015 08 11.48002 00 27 50.624 +03 50 57.31 24.5r 00QH226 568 C~2lRJ 2015 08 11.52446 00 27 50.477 +03 50 56.41 24.6r 00QH226 568 C~2lRJ 2015 09 08.38855 00 25 59.647 +03 39 51.99 25.0r 00QH226 568 C~2lRJ 2015 09 08.49278 00 25 59.148 +03 39 48.96 25.0r 00QH226 568 C~2lRJ 2015 09 08.53500 00 25 58.943 +03 39 47.81 24.8r 00QH226 568 C~2lRJ 2015 09 09.51188 00 25 54.264 +03 39 19.06 24.8w 00QH226 568 C~2lRJ 2015 09 10.45287 00 25 49.735 +03 38 51.15 24.8w 00QH226 568 C~2lRJ 2015 09 16.43732 00 25 20.149 +03 35 48.59 24.4w 00QH226 568 C~2lRJ 2015 10 03.36404 00 23 52.746 +03 26 42.63 24.8w 00QH226 568 C~2lRJ 2015 10 07.39133 00 23 31.849 +03 24 30.89 24.6r 00QH226 568 C~2lRJ 2015 11 07.22874 00 21 08.950 +03 09 17.50 24.2w 00QH226 568 C~2lRJ 2015 11 07.28121 00 21 08.742 +03 09 16.25 00QH226 568 C~2lRJ 2015 11 10.35840 00 20 57.341 +03 08 02.30 25.0w 00QH226 568 C~2lRJ 2015 12 07.30512 00 19 52.126 +03 00 50.95 24.7w 00QH226 568 C~2lRJ 2016 01 01.23433 00 19 57.018 +03 01 07.44 24.5w 00QH226 568 C~2lRJ 2016 09 06.42437 00 32 31.515 +04 27 15.24 25.1w 00QH226 568 C~2lRJ 2016 09 06.46487 00 32 31.327 +04 27 14.02 24.8w 00QH226 568 C~2lRJ 2016 09 25.31706 00 30 58.042 +04 17 40.44 24.7w 00QH226 568 C~2lRJ 2016 09 25.34339 00 30 57.883 +04 17 39.78 24.9w 00QH226 568 C~2lRJ 2016 09 26.42319 00 30 52.288 +04 17 05.03 24.7w 00QH226 568 C~2lRJ 2016 10 30.34865 00 28 03.956 +03 59 21.47 24.9w 00QH226 568 C~2lRJ 2016 11 03.30427 00 27 47.130 +03 57 33.34 25.3w 00QH226 568 C~2lRJ 2016 11 03.35669 00 27 46.909 +03 57 31.71 25.1w 00QH226 568 C~2lRJ 2016 12 24.27431 00 26 06.354 +03 46 17.29 24.8w 00QH226 568 C~2lRJ 2017 01 02.26396 00 26 15.781 +03 47 11.01 00QH226 568 C~2lRJ 2017 01 29.22410 00 27 33.836 +03 55 14.74 24.1w 00QH226 568 C~2lRJ 2017 05 30.59780 00 39 39.167 +05 14 16.18 24.2w 00QH226 568 C~2lRJ 2017 05 30.60776 00 39 39.183 +05 14 16.58 24.3w 00QH226 568 C~2lRJ 2017 09 16.51863 00 38 07.528 +05 08 37.19 24.2w 00QH226 568 C~2lRJ 2017 09 22.47204 00 37 37.664 +05 05 34.85 24.5w 00QH226 568 C~2lRJ 2017 11 22.34219 00 33 02.476 +04 36 31.87 24.7w 00QH226 568 C~2lRJ 2017 12 23.31121 00 32 20.713 +04 31 39.07 25.1w 00QH226 568 C~2lRJ
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 0.30 0.00 0.44
2 0.0106 0.00 0.22 0.00 0.20
3 0.0109 0.00 -0.22 0.00 0.09
4 0.0133 0.00 -0.06 0.00 -0.41
5 0.0135 0.00 0.15 0.00 0.03
6 0.0137 0.00 -0.18 0.00 -0.32
7 0.0139 0.00 -0.25 0.00 0.09
8 0.0140 0.00 0.03 0.00 -0.18
9 14.8262 0.00 -0.01 0.00 0.13
10 14.8839 0.00 0.07 0.00 0.06
11 14.8975 0.00 0.04 0.00 -0.01
12 14.9602 0.00 -0.04 0.00 0.04
13 14.9603 0.00 -0.17 0.00 -0.09
14 15.0366 0.00 -0.08 0.00 -0.02
15 15.0369 0.00 0.03 0.00 -0.01
16 15.0370 0.00 0.03 0.00 0.07
17 15.0397 0.00 -0.06 0.00 0.02
18 15.0423 0.00 -0.00 0.00 0.00
19 15.0587 0.00 -0.01 0.00 0.03
20 15.1050 0.00 0.04 0.00 0.06
21 15.1160 0.00 -0.03 0.00 0.01
22 15.2005 0.00 0.08 0.00 0.02
23 15.2006 0.00 0.04 0.00 0.06
24 15.2090 0.00 0.06 0.00 0.04
25 15.2828 0.00 0.03 0.00 0.03
26 15.3511 0.00 -0.04 0.00 0.07
27 16.0333 0.00 -0.16 0.00 0.03
28 16.0334 0.00 -0.11 0.00 -0.06
29 16.0850 0.00 0.22 0.00 -0.19
30 16.0851 0.00 -0.09 0.00 -0.01
31 16.0881 0.00 -0.03 0.00 -0.01
32 16.1809 0.00 -0.04 0.00 0.03
33 16.1918 0.00 0.02 0.00 0.21
34 16.1919 0.00 0.04 0.00 -0.02
35 16.3313 0.00 0.01 0.00 -0.18
36 16.3559 0.00 0.06 0.00 0.04
37 16.4297 0.00 -0.01 0.00 0.08
38 16.7621 0.00 0.43 0.00 -0.20
39 16.7621 0.00 0.06 0.00 -0.09
40 17.0603 0.00 0.11 0.00 -0.02
41 17.0766 0.00 -0.24 0.00 0.14
42 17.2432 0.00 0.01 0.00 0.10
43 17.3280 0.00 -0.01 0.00 -0.22
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.
00QH226 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.747 39.747 39.747 ecceobj 0.195 0.195 0.195 incobj 2.799 2.799 2.799 qmin 31.233 31.253 31.258 qmax 48.411 48.366 48.449 amean 39.457 39.457 39.457 amin 38.896 38.902 38.904 amax 40.061 40.044 40.060 emean 0.192 0.192 0.192 emin 0.175 0.175 0.175 emax 0.210 0.209 0.210 imean 3.456 3.409 3.565 imin 2.677 2.621 2.700 imax 4.131 4.129 4.248 excite_mean 0.202 0.201 0.202 fracstop 1.000 1.000 1.000 cjmean 3.005 3.005 3.005 libcent 0 179.2 179.6 179.9 libamp 0 125.1 125.0 125.1 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 175.2 174.5 186.0 kozaiamp 180.0 179.9 180.0