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: 469372 # Created Thu Oct 18 01:07:03 2018 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 93 observations of 93 # Arc: 14.09y # First observation: 2001/05/23 # Last observation: 2015/06/26 # Chi-squared of fit: 216.16 DOF: 180 RMS: 0.27 # Min/Max residuals: -0.79 0.72 # Exact a, adot, b, bdot, g, gdot: 1.013146E-05 1.987493E-02 -4.149709E-06 -8.170921E-03 2.335929E-02 2.120706E-03 # Covariance matrix: 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 # lat0 lon0 xBary yBary zBary JD0 -1.052991 -11.917328 0.980124 0.004990 0.278516 2452052.834113 # Heliocentric elements and errors Epoch: 2452052.5000 = 2001/05/23 Mean Anomaly: 132.98393 +/- 0.000 Argument of Peri: 41.53086 +/- 0.000 Long of Asc Node: 164.19202 +/- 0.000 Inclination: 22.34870 +/- 0.000 Eccentricity: 0.10817660 +/- 0.0000 Semi-Major Axis: 39.41603545 +/- 0.0000 Time of Perihelion: 2418663.4161 +/- 0.0 Perihelion: 35.15214290 +/- 0.0000 Aphelion: 43.67992800 +/- 0.0000 Period (y) 247.4672 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 41.40833508 +/- 0.0000 Ecliptic Y -9.73436758 +/- 0.0000 Ecliptic Z -0.78689308 +/- 0.0000 Ecliptic XDOT 0.00069857 +/- 0.0000 Ecliptic YDOT 0.00223385 +/- 0.0000 Ecliptic ZDOT -0.00096189 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 42.54436993 +/- 0.0000 Geocenter to KBO 42.80946414 +/- 0.0000 # Hcoef: 5.18
The following table shows the complete astrometric record for 469372. 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 (469372) followed by the observatory code and reference code for the source of the astrometry.
2001 05 23.33337 23 17 49.07 -05 40 51.2 21.1R 469372 807 Cd7926 2001 05 23.41349 23 17 49.22 -05 40 50.6 469372 807 Cd7926 2001 08 19.23189 23 16 02.46 -06 01 39.6 20.0R 469372 807 Cd7926 2001 08 19.31453 23 16 02.12 -06 01 42.3 469372 807 Cd7926 2001 08 20.29073 23 15 58.18 -06 02 12.8 20.0R 469372 807 Cd7926 2001 08 20.37625 23 15 57.83 -06 02 15.6 469372 807 Cd7926 2001 09 18.22677 23 13 53.53 -06 17 55.4 21.0R 469372 688 Cd7926 2001 09 18.31522 23 13 53.14 -06 17 58.3 469372 688 Cd7926 2001 10 12.13745 23 12 16.86 -06 29 50.1 19.5 469372 304 Ce9410 2001 10 12.14430 23 12 16.86 -06 29 50.2 469372 304 Ce9410 2001 10 20.21289 23 11 49.63 -06 33 13.3 21.0R 469372 695 Ce0366 2001 10 20.29398 23 11 49.37 -06 33 15.3 469372 695 Ce0366 2001 10 21.12132 23 11 46.81 -06 33 34.5 469372 695 Ce0366 2001 10 23.14153 23 11 40.66 -06 34 21.0 20.5R 469372 696 Cd9304 2001 10 23.20736 23 11 40.49 -06 34 22.5 469372 696 Cd9304 2002 07 13.42659 23 22 58.97 -05 44 43.2 21.3R 469372 695 Cg1155 2002 07 13.47309 23 22 58.88 -05 44 44.2 21.1R 469372 695 Cg1155 2002 09 07.92421 23 19 45.57 -06 11 14.7 469372 246 Cg3218 2002 09 07.92742 23 19 45.52 -06 11 15.9 469372 246 Cg3218 2002 09 07.93074 23 19 45.49 -06 11 15.1 469372 246 Cg3218 2002 09 12.28664 23 19 26.38 -06 13 39.8 21.5 469372 644 Ci9379 2002 09 12.35240 23 19 26.10 -06 13 41.2 469372 568 Cg1155 2002 09 12.41066 23 19 25.84 -06 13 43.1 21.2R 469372 568 Cg1155 2002 09 13.42385 23 19 21.43 -06 14 16.6 21.1R 469372 568 Cg1155 2004 05 27.34639 23 32 43.84 -05 37 08.3 20.6R 469372 304 Ck8659 2004 05 27.38316 23 32 43.91 -05 37 08.4 469372 304 Ck8659 2006 06 12.15634 23 42 57.01 -05 33 42.6 21.0R 469372 250 S~06AQ 2006 06 12.16074 23 42 57.02 -05 33 42.7 469372 250 S~06AQ 2006 06 12.16513 23 42 57.02 -05 33 42.6 469372 250 S~06AQ 2006 06 12.16953 23 42 57.03 -05 33 42.6 469372 250 S~06AQ 2009 08 22.18280 23 56 03.22 -05 50 53.6 21.8V 469372 950 C~0C7U 2009 09 14.99097 23 54 26.759 -06 04 07.33 21.8V 469372 950 C~0C7U 2009 09 28.388626 23 53 28.67 -06 11 24.0 21.2V 469372 645 C~2KNp 2009 09 28.389455 23 53 28.65 -06 11 24.1 21.0V 469372 645 C~2KNp 2009 09 28.391943 23 53 28.67 -06 11 24.2 21.7V 469372 645 C~2KNp 2009 10 16.182232 23 52 15.39 -06 20 01.3 21.5V 469372 645 C~1Re9 2009 10 16.183061 23 52 15.39 -06 20 01.3 21.4V 469372 645 C~1Re9 2009 10 16.185549 23 52 15.38 -06 20 01.3 22.1V 469372 645 C~1Re9 2011 08 23.48525 00 05 56.189 -05 46 22.47 21.8g 469372 F51 C~1vV6 2011 08 23.49624 00 05 56.146 -05 46 22.66 21.5g 469372 F51 C~1vV6 2011 08 23.50842 00 05 56.115 -05 46 23.17 21.4r 469372 F51 C~1vV6 2011 08 23.51909 00 05 56.064 -05 46 23.47 21.2r 469372 F51 C~1vV6 2012 10 21.35683 00 06 48.410 -06 14 58.64 21.3i 469372 F51 C~1vV6 2012 10 21.36828 00 06 48.369 -06 14 58.85 21.6r 469372 F51 C~1vV6 2012 10 21.37860 00 06 48.310 -06 14 59.22 21.6r 469372 F51 C~1vV6 2013 09 11.223611 00 14 34.45 -05 51 39.5 469372 W84 C~1Q3A 2013 09 11.226840 00 14 34.44 -05 51 39.6 469372 W84 C~1Q3A 2013 09 27.46704 00 13 24.959 -06 00 41.40 21.3r 469372 F51 C~1vV6 2013 09 27.47856 00 13 24.888 -06 00 41.79 21.2i 469372 F51 C~1vV6 2013 09 27.49054 00 13 24.850 -06 00 41.90 21.3i 469372 F51 C~1vV6 2013 09 30.167037 00 13 13.26 -06 02 07.2 469372 W84 C~1Q3A 2013 09 30.168495 00 13 13.25 -06 02 07.3 469372 W84 C~1Q3A 2013 10 13.153183 00 12 18.06 -06 08 35.2 469372 W84 C~1Q3A 2013 10 13.155984 00 12 18.04 -06 08 35.4 469372 W84 C~1Q3A 2014 07 31.54412 00 21 43.000 -05 26 45.60 21.9w 469372 F51 C~1vV6 2014 07 31.55606 00 21 42.972 -05 26 45.82 22.0w 469372 F51 C~1vV6 2014 07 31.56805 00 21 42.953 -05 26 46.13 21.6w 469372 F51 C~1vV6 2014 07 31.58006 00 21 42.930 -05 26 46.41 21.7w 469372 F51 C~1vV6 2014 08 27.48039 00 20 27.672 -05 40 19.55 21.5w 469372 F51 C~1vV6 2014 08 27.49178 00 20 27.627 -05 40 19.87 21.5w 469372 F51 C~1vV6 2014 08 27.50321 00 20 27.588 -05 40 20.27 21.6w 469372 F51 C~1vV6 2014 08 27.51461 00 20 27.545 -05 40 20.63 21.5w 469372 F51 C~1vV6 2014 09 20.43030 00 18 51.980 -05 53 49.99 21.5w 469372 F51 C~1vV6 2014 09 20.44249 00 18 51.930 -05 53 50.49 21.5w 469372 F51 C~1vV6 2014 09 20.45466 00 18 51.873 -05 53 50.85 21.4w 469372 F51 C~1vV6 2014 09 20.46691 00 18 51.823 -05 53 51.20 21.5w 469372 F51 C~1vV6 2014 09 22.41537 00 18 43.438 -05 54 56.25 21.6w 469372 F51 C~1vV6 2014 09 22.42733 00 18 43.396 -05 54 56.68 21.5w 469372 F51 C~1vV6 2014 09 22.43933 00 18 43.323 -05 54 56.92 21.6w 469372 F51 C~1vV6 2014 09 22.45132 00 18 43.285 -05 54 57.41 21.5w 469372 F51 C~1vV6 2014 10 28.37209 00 16 14.652 -06 12 01.26 21.7w 469372 F51 C~1vV6 2014 10 28.38425 00 16 14.603 -06 12 01.41 21.8w 469372 F51 C~1vV6 2014 10 28.39641 00 16 14.549 -06 12 01.79 21.7w 469372 F51 C~1vV6 2014 10 28.40856 00 16 14.504 -06 12 02.10 21.8w 469372 F51 C~1vV6 2014 11 12.25524 00 15 26.637 -06 16 29.56 22.1w 469372 F51 C~1vV6 2014 11 12.26650 00 15 26.577 -06 16 29.41 22.1w 469372 F51 C~1vV6 2014 11 12.27778 00 15 26.591 -06 16 29.72 21.9w 469372 F51 C~1vV6 2014 11 12.28906 00 15 26.544 -06 16 30.14 22.1w 469372 F51 C~1vV6 2014 11 23.25813 00 15 00.212 -06 18 29.45 21.8w 469372 F51 C~1vV6 2014 11 23.27099 00 15 00.188 -06 18 29.47 21.8w 469372 F51 C~1vV6 2014 11 23.28385 00 15 00.162 -06 18 29.54 21.9w 469372 F51 C~1vV6 2014 11 23.29673 00 15 00.124 -06 18 29.70 21.7w 469372 F51 C~1vV6 2014 12 09.22251 00 14 38.596 -06 19 14.86 21.4i 469372 F51 C~1vV6 2014 12 09.23736 00 14 38.589 -06 19 15.11 21.4i 469372 F51 C~1vV6 2014 12 09.25221 00 14 38.574 -06 19 14.85 21.6i 469372 F51 C~1vV6 2015 06 22.58810 00 26 43.814 -05 12 32.38 21.7w 469372 F51 C~1vV6 2015 06 22.59222 00 26 43.816 -05 12 32.19 21.7w 469372 F51 C~1vV6 2015 06 22.59638 00 26 43.829 -05 12 32.31 21.6w 469372 F51 C~1vV6 2015 06 22.60052 00 26 43.838 -05 12 32.53 21.8w 469372 F51 C~1vV6 2015 06 26.58371 00 26 48.642 -05 13 04.68 21.7w 469372 F51 C~1vV6 2015 06 26.58760 00 26 48.639 -05 13 04.68 21.7w 469372 F51 C~1vV6 2015 06 26.59145 00 26 48.647 -05 13 04.86 21.6w 469372 F51 C~1vV6 2015 06 26.59532 00 26 48.658 -05 13 04.93 21.6w 469372 F51 C~1vV6
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 0.72 0.00 0.00 2 0.0002 0.00 0.30 0.00 -0.02 3 0.2407 0.00 0.36 0.00 0.30 4 0.2409 0.00 0.34 0.00 0.19 5 0.2436 0.00 0.30 0.00 0.29 6 0.2438 0.00 0.33 0.00 0.17 7 0.3228 0.00 -0.10 0.00 -0.19 8 0.3230 0.00 -0.09 0.00 -0.23 9 0.3882 0.00 -0.50 0.00 -0.07 10 0.3883 0.00 -0.13 0.00 0.01 11 0.4103 0.00 0.34 0.00 0.19 12 0.4106 0.00 0.36 0.00 0.10 13 0.4128 0.00 0.48 0.00 0.25 14 0.4184 0.00 0.08 0.00 -0.22 15 0.4185 0.00 0.53 0.00 -0.25 16 1.1392 0.00 0.01 0.00 0.12 17 1.1393 0.00 -0.02 0.00 -0.00 18 1.2939 0.00 0.11 0.00 0.62 19 1.2939 0.00 -0.43 0.00 -0.47 20 1.2939 0.00 -0.66 0.00 0.44 21 1.3058 0.00 -0.64 0.00 -0.49 22 1.3060 0.00 -0.57 0.00 0.23 23 1.3062 0.00 -0.56 0.00 0.25 24 1.3089 0.00 0.02 0.00 0.07 25 3.0117 0.00 -0.46 0.00 -0.18 26 3.0118 0.00 -0.62 0.00 -0.49 27 5.0536 0.00 0.31 0.00 0.63 28 5.0536 0.00 0.38 0.00 0.54 29 5.0536 0.00 0.30 0.00 0.65 30 5.0536 0.00 0.37 0.00 0.66 31 8.2487 0.00 -0.06 0.00 -0.08 32 8.3139 0.00 -0.37 0.00 -0.79 33 8.3506 0.00 -0.14 0.00 -0.40 34 8.3506 0.00 -0.39 0.00 -0.47 35 8.3506 0.00 0.08 0.00 -0.49 36 8.3993 0.00 0.34 0.00 -0.45 37 8.3993 0.00 0.39 0.00 -0.43 38 8.3993 0.00 0.39 0.00 -0.36 39 10.2509 0.00 -0.14 0.00 -0.20 40 10.2510 0.00 -0.19 0.00 -0.03 41 10.2510 0.00 0.01 0.00 -0.15 42 10.2510 0.00 -0.17 0.00 -0.10 43 11.4142 0.00 0.33 0.00 -0.25 44 11.4142 0.00 0.38 0.00 -0.18 45 11.4142 0.00 0.10 0.00 -0.30 46 12.3036 0.00 -0.03 0.00 0.33 47 12.3036 0.00 0.02 0.00 0.34 48 12.3481 0.00 0.04 0.00 -0.10 49 12.3481 0.00 -0.26 0.00 -0.12 50 12.3481 0.00 -0.04 0.00 0.16 51 12.3555 0.00 0.12 0.00 0.11 52 12.3555 0.00 0.07 0.00 0.05 53 12.3910 0.00 0.13 0.00 0.08 54 12.3910 0.00 0.00 0.00 -0.05 55 13.1888 0.00 0.05 0.00 -0.09 56 13.1888 0.00 -0.02 0.00 0.00 57 13.1889 0.00 0.06 0.00 0.01 58 13.1889 0.00 0.07 0.00 0.04 59 13.2626 0.00 -0.08 0.00 -0.03 60 13.2626 0.00 -0.13 0.00 0.02 61 13.2626 0.00 -0.09 0.00 0.00 62 13.2626 0.00 -0.11 0.00 0.02 63 13.3281 0.00 0.10 0.00 0.15 64 13.3282 0.00 0.15 0.00 0.06 65 13.3282 0.00 0.10 0.00 0.10 66 13.3282 0.00 0.15 0.00 0.16 67 13.3336 0.00 0.11 0.00 0.08 68 13.3336 0.00 0.27 0.00 0.05 69 13.3336 0.00 -0.04 0.00 0.21 70 13.3337 0.00 0.18 0.00 0.12 71 13.4320 0.00 0.17 0.00 0.10 72 13.4320 0.00 0.11 0.00 0.21 73 13.4321 0.00 -0.03 0.00 0.10 74 13.4321 0.00 -0.03 0.00 0.05 75 13.4727 0.00 -0.06 0.00 0.04 76 13.4728 0.00 -0.48 0.00 0.35 77 13.4728 0.00 0.22 0.00 0.20 78 13.4728 0.00 -0.00 0.00 -0.06 79 13.5029 0.00 0.05 0.00 0.12 80 13.5029 0.00 0.09 0.00 0.20 81 13.5029 0.00 0.10 0.00 0.23 82 13.5030 0.00 -0.07 0.00 0.17 83 13.5466 0.00 0.32 0.00 0.08 84 13.5466 0.00 0.38 0.00 -0.20 85 13.5467 0.00 0.33 0.00 0.03 86 14.0815 0.00 -0.09 0.00 -0.04 87 14.0815 0.00 -0.14 0.00 0.18 88 14.0815 0.00 -0.03 0.00 0.09 89 14.0815 0.00 0.02 0.00 -0.10 90 14.0924 0.00 -0.03 0.00 0.10 91 14.0924 0.00 -0.14 0.00 0.14 92 14.0924 0.00 -0.07 0.00 -0.00 93 14.0924 0.00 0.04 0.00 -0.04
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.
469372 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.561 39.561 39.561 ecceobj 0.106 0.106 0.106 incobj 22.301 22.301 22.301 qmin 33.242 33.241 33.242 qmax 45.889 45.889 45.889 amean 39.457 39.457 39.457 amin 39.144 39.144 39.143 amax 39.798 39.798 39.798 emean 0.117 0.117 0.117 emin 0.081 0.081 0.081 emax 0.155 0.155 0.155 imean 21.672 21.672 21.672 imin 21.006 21.006 21.006 imax 22.332 22.332 22.332 excite_mean 0.388 0.388 0.388 fracstop 1.000 1.000 1.000 cjmean 2.875 2.875 2.875 libcent 0 181.4 181.3 181.4 libamp 0 44.0 44.1 44.0 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 180.9 180.9 181.0 kozaiamp 180.0 180.0 180.0