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: 120347 # Created Sun May 19 01:36:37 2013 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 89 observations of 100 # Arc: 28.28y # First observation: 1982/07/25 # Last observation: 2010/11/05 # Chi-squared of fit: 749.29 DOF: 172 RMS: 0.51 # Min/Max residuals: -1.58 1.15 # Exact a, adot, b, bdot, g, gdot: 1.332425E-05 2.284424E-02 4.169759E-06 7.977764E-03 2.472991E-02 2.738981E-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 14.703549 -44.373914 0.219403 0.251488 -0.957187 2445176.125866 # Heliocentric elements and errors Epoch: 2445176.5000 = 1982/07/26 Mean Anomaly: 75.17233 +/- 0.000 Argument of Peri: 310.07451 +/- 0.000 Long of Asc Node: 280.02620 +/- 0.000 Inclination: 23.90264 +/- 0.000 Eccentricity: 0.10961702 +/- 0.0000 Semi-Major Axis: 42.08684529 +/- 0.0000 Time of Perihelion: 2424352.0528 +/- 0.0 Perihelion: 37.47341059 +/- 0.0000 Aphelion: 46.70027998 +/- 0.0000 Period (y) 273.0409 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 28.50486362 +/- 0.0000 Ecliptic Y -28.20834373 +/- 0.0000 Ecliptic Z 10.26371710 +/- 0.0000 Ecliptic XDOT 0.00182373 +/- 0.0000 Ecliptic YDOT 0.00175294 +/- 0.0000 Ecliptic ZDOT 0.00093118 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 41.39536399 +/- 0.0000 Geocenter to KBO 40.43682968 +/- 0.0000 # Hcoef: 4.28
The following table shows the complete astrometric record for 120347. 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 (120347) followed by the observatory code and reference code for the source of the astrometry.
1982 07 25.62525 20 55 06.16 -02 04 27.9 120347 260 n4005 1982 08 21.48261 20 52 58.73 -02 11 52.6 120347 260 n4005 1983 06 14.78183 21 02 17.17 -01 15 34.7 120347 260 n4005 1995 07 01.41806 21 53 21.77 +08 03 21.5 120347 261 n4005 1995 07 27.35139 21 51 47.97 +08 04 23.0 120347 261 n4005 2001 08 11.33052 22 16 24.36 +12 23 45.5 20.1R 120347 644 Cn4005 2001 08 11.34134 22 16 24.34 +12 23 45.1 20.4R 120347 644 Cn4005 2001 08 11.35222 22 16 24.26 +12 23 45.0 20.3R 120347 644 Cn4005 2001 09 14.20148 22 13 52.30 +12 11 20.8 20.0R 120347 644 Cn4005 2001 09 14.22286 22 13 52.23 +12 11 20.3 20.1R 120347 644 Cn4005 2001 09 26.14548 22 13 04.24 +12 04 58.5 20.2R 120347 644 Cn4005 2001 09 30.28965 22 12 49.06 +12 02 37.8 20.3R 120347 644 Cn4005 2001 10 06.14712 22 12 29.35 +11 59 13.2 20.1R 120347 644 Cn4005 2002 07 21.48937 22 22 05.98 +13 07 29.6 20.4R 120347 644 Cn4005 2002 08 14.36968 22 20 28.45 +13 05 21.2 21.0R 120347 644 Cn4005 2002 08 14.39292 22 20 28.34 +13 05 20.6 20.3R 120347 644 Cn4005 2002 08 14.41416 22 20 28.26 +13 05 20.6 20.5R 120347 644 Cn4005 2002 08 22.32300 22 19 52.52 +13 03 13.1 20.4R 120347 644 Cn4005 2002 09 11.24833 22 18 22.52 +12 55 17.9 20.5R 120347 644 Cn4005 2002 09 11.27910 22 18 22.38 +12 55 16.8 20.2R 120347 644 Cn4005 2002 09 11.32110 22 18 22.19 +12 55 16.1 20.5R 120347 644 Cn4005 2004 09 22.14639 22 26 07.25 +14 12 46.5 20.6R 120347 675 Cn3338 2004 09 22.18819 22 26 07.07 +14 12 45.2 20.6R 120347 675 Cn3338 2004 09 23.15391 22 26 03.16 +14 12 13.5 20.5R 120347 675 Cn3338 2004 09 23.19638 22 26 02.98 +14 12 12.1 20.5R 120347 675 Cn3338 2005 07 04.47410 22 35 41.01 +15 06 54.2 20.3i 120347 568 C~0VQi 2005 07 04.50880 22 35 40.93 +15 06 54.8 20.3i 120347 568 C~0VQi 2005 07 04.53909 22 35 40.86 +15 06 55.3 20.2i 120347 568 C~0VQi 2005 08 05.93378 22 33 53.75 +15 10 05.5 19.8C 120347 J86 Cz7478 2005 08 05.94797 22 33 53.69 +15 10 05.5 19.8C 120347 J86 Cz7478 2005 08 06.02863 22 33 53.35 +15 10 05.0 19.9C 120347 J86 Cz7478 2005 08 06.13493 22 33 52.91 +15 10 04.4 19.9C 120347 J86 Cz7478 2005 08 06.93296 22 33 49.61 +15 09 59.4 19.7C 120347 J86 Cz7478 2005 08 06.94711 22 33 49.55 +15 09 59.3 19.8C 120347 J86 Cz7478 2005 08 07.01240 22 33 49.28 +15 09 58.8 19.9C 120347 J86 Cz7478 2005 08 07.10516 22 33 48.89 +15 09 58.3 19.9C 120347 J86 Cz7478 2005 08 07.99346 22 33 45.19 +15 09 51.9 20.5C 120347 J86 Cz7478 2005 08 08.00765 22 33 45.15 +15 09 52.1 21.0C 120347 J86 Cz7478 2005 08 08.06534 22 33 44.87 +15 09 51.4 19.9C 120347 J86 Cz7478 2005 08 26.09472 22 32 25.24 +15 05 49.1 20.6R 120347 213 Cn9665 2005 09 03.32908 22 31 47.71 +15 02 49.9 20.9g 120347 568 C74769 2005 09 03.36589 22 31 47.54 +15 02 49.1 20.7g 120347 568 C74769 2005 09 03.40261 22 31 47.37 +15 02 48.1 20.7g 120347 568 C74769 2005 09 05.30408 22 31 38.73 +15 02 01.7 120347 568 C~0VQi 2006 06 25.46320 22 40 13.47 +15 43 12.6 120347 695 C~0VQi 2006 06 26.41434 22 40 12.02 +15 43 35.6 120347 695 C~0VQi 2006 07 21.90833 22 39 08.35 +15 50 01.9 20.0R 120347 250 S~06HB 2006 07 21.91273 22 39 08.33 +15 50 02.0 120347 250 S~06HB 2006 07 21.91713 22 39 08.32 +15 50 02.0 120347 250 S~06HB 2006 07 21.92152 22 39 08.30 +15 50 02.0 120347 250 S~06HB 2007 07 13.86779 22 43 50.75 +16 28 03.6 20.6R 120347 250 S~06HB 2007 07 13.87543 22 43 50.72 +16 28 03.7 120347 250 S~06HB 2007 07 13.88307 22 43 50.70 +16 28 03.8 120347 250 S~06HB 2007 07 13.89070 22 43 50.68 +16 28 03.9 120347 250 S~06HB 2007 07 15.81015 22 43 45.28 +16 28 27.5 120347 250 S~06HB 2007 07 15.81779 22 43 45.26 +16 28 27.6 120347 250 S~06HB 2007 07 15.82543 22 43 45.24 +16 28 27.7 120347 250 S~06HB 2007 07 15.86570 22 43 45.13 +16 28 28.2 120347 250 S~06HB 2007 08 11.44209 22 42 08.91 +16 29 18.1 120347 250 S~06HB 2007 08 11.45043 22 42 08.88 +16 29 18.1 120347 250 S~06HB 2007 08 11.45807 22 42 08.84 +16 29 18.0 120347 250 S~06HB 2007 08 11.50598 22 42 08.64 +16 29 17.6 120347 250 S~06HB 2007 08 12.24337 22 42 05.53 +16 29 11.6 120347 250 S~06HB 2007 08 12.25031 22 42 05.50 +16 29 11.5 120347 250 S~06HB 2007 08 12.30587 22 42 05.26 +16 29 11.1 120347 250 S~06HB 2007 08 12.31490 22 42 05.22 +16 29 11.0 120347 250 S~06HB 2007 08 12.38156 22 42 04.94 +16 29 10.4 120347 250 S~06HB 2007 08 12.43781 22 42 04.71 +16 29 09.9 120347 250 S~06HB 2007 08 12.44406 22 42 04.68 +16 29 09.9 120347 250 S~06HB 2007 08 16.19148 22 41 48.755 +16 28 32.12 20.4R 120347 675 C~0BAe 2007 08 16.23832 22 41 48.577 +16 28 31.32 20.5R 120347 675 C~0BAe 2007 09 03.37057 22 40 26.98 +16 23 19.4 120347 250 S~06HB 2007 09 03.37821 22 40 26.95 +16 23 19.2 120347 250 S~06HB 2007 09 03.43168 22 40 26.70 +16 23 18.0 120347 250 S~06HB 2007 09 03.43932 22 40 26.67 +16 23 17.9 120347 250 S~06HC 2008 05 19.76224 22 48 36.40 +16 39 04.2 120347 250 S~06HC 2008 05 19.76988 22 48 36.41 +16 39 04.6 120347 250 S~06HC 2008 05 19.77752 22 48 36.42 +16 39 04.9 120347 250 S~06HC 2008 05 19.78516 22 48 36.44 +16 39 05.2 120347 250 S~06HC 2008 08 27.43903 22 45 15.244 +17 04 52.52 20.6R 120347 675 C~0BAe 2008 08 27.47951 22 45 15.065 +17 04 51.83 20.9R 120347 675 C~0BAe 2008 08 28.42567 22 45 10.739 +17 04 33.97 20.6R 120347 675 C~0BAe 2008 08 28.46728 22 45 10.567 +17 04 33.20 21.1R 120347 675 C~0BAe 2009 08 20.25592 22 50 09.49 +17 45 43.8 20.1R 120347 688 C~08b6 2009 08 20.31622 22 50 09.21 +17 45 43.1 120347 688 C~08b6 2010 11 05.03243 22 49 42.168 +17 45 02.05 120347 309 C~0X4j 2010 11 05.03340 22 49 42.175 +17 45 02.10 120347 309 C~0X4j 2010 11 05.03439 22 49 42.173 +17 45 02.03 120347 309 C~0X4j 2010 11 05.03568 22 49 42.179 +17 45 02.19 120347 309 C~0X4j 2010 11 05.03666 22 49 42.173 +17 45 02.05 120347 309 C~0X4j 2010 11 05.03763 22 49 42.160 +17 45 01.96 120347 309 C~0X4j 2010 11 05.03951 22 49 42.166 +17 45 01.91 120347 309 C~0X4j 2010 11 05.04150 22 49 42.165 +17 45 01.98 120347 309 C~0X4j 2010 11 05.04351 22 49 42.171 +17 45 01.53 120347 309 C~0X4j 2010 11 05.04524 22 49 42.155 +17 45 01.62 120347 309 C~0X4j 2010 11 05.04622 22 49 42.152 +17 45 01.71 120347 309 C~0X4j 2010 11 05.04721 22 49 42.147 +17 45 01.51 120347 309 C~0X4j 2010 11 05.04919 22 49 42.167 +17 45 01.40 120347 309 C~0X4j 2010 11 05.05166 22 49 42.166 +17 45 01.43 120347 309 C~0X4j 2010 11 05.05413 22 49 42.148 +17 45 01.34 120347 309 C~0X4j
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 -0.08 0.00 -1.58 2 0.0735 0.00 -0.44 0.00 -0.16 3 0.8875 0.00 0.08 0.00 0.24 4 12.9330 0.00 0.38 0.00 0.09 5 13.0040 0.00 -0.15 0.00 0.26 6 19.0464 0.00 0.14 0.00 -0.31 7 19.0465 0.00 0.57 0.00 -0.57 8 19.0465 0.00 0.10 0.00 -0.54 9 19.1392 0.00 -0.09 0.00 -0.24 10 19.1392 0.00 0.24 0.00 -0.10 11 19.1719 0.00 -0.04 0.00 -0.42 12 19.1832 0.00 -0.51 0.00 -0.14 13 19.1992 0.00 0.16 0.00 -0.78 14 19.9887 0.00 0.55 0.00 0.33 15 20.0541 0.00 0.37 0.00 0.25 16 20.0541 0.00 0.30 0.00 -0.04 17 20.0542 0.00 0.54 0.00 0.25 18 20.0758 0.00 -0.27 0.00 -0.51 19 20.1304 0.00 -0.01 0.00 -0.27 20 20.1305 0.00 -0.06 0.00 -0.49 21 20.1306 0.00 -0.11 0.00 0.02 22 22.1616 0.00 0.24 0.00 -0.11 23 22.1617 0.00 0.13 0.00 -0.05 24 22.1643 0.00 0.13 0.00 -0.02 25 22.1645 0.00 0.04 0.00 -0.02 26 22.9428 0.00 0.36 0.00 0.11 27 22.9429 0.00 0.39 0.00 0.10 28 22.9430 0.00 0.42 0.00 0.07 29 23.0316 0.00 0.29 0.00 -0.02 30 23.0317 0.00 0.27 0.00 0.06 31 23.0319 0.00 0.24 0.00 0.02 32 23.0322 0.00 0.33 0.00 0.06 33 23.0344 0.00 0.24 0.00 0.07 34 23.0344 0.00 0.24 0.00 0.06 35 23.0346 0.00 0.32 0.00 -0.02 36 23.0349 0.00 0.36 0.00 0.09 37 23.0373 0.00 0.44 0.00 -0.09 38 23.0373 0.00 0.74 0.00 0.21 39 23.0375 0.00 0.23 0.00 -0.07 40 23.0868 0.00 -0.09 0.00 0.48 41 23.1094 0.00 0.05 0.00 0.14 42 23.1095 0.00 0.06 0.00 0.22 43 23.1096 0.00 0.06 0.00 0.11 44 23.1148 0.00 -0.15 0.00 0.55 45 23.9174 0.00 0.31 0.00 0.10 46 23.9200 0.00 0.29 0.00 0.05 47 23.9898 0.00 0.61 0.00 -1.09 48 23.9898 0.00 0.53 0.00 -1.02 49 23.9898 0.00 0.60 0.00 -1.04 50 23.9899 0.00 0.52 0.00 -1.07 51 24.9671 0.00 -1.26 0.00 0.02 52 24.9671 0.00 -1.40 0.00 0.02 53 24.9672 0.00 -1.38 0.00 0.02 54 24.9672 0.00 -1.37 0.00 0.02 55 24.9724 0.00 -1.40 0.00 0.01 56 24.9725 0.00 -1.37 0.00 0.02 57 24.9725 0.00 -1.34 0.00 0.04 58 24.9726 0.00 -1.25 0.00 0.07 59 25.0454 0.00 ( -2.96) 0.00 ( 1.35) 60 25.0454 0.00 ( -2.88) 0.00 ( 1.41) 61 25.0454 0.00 ( -3.00) 0.00 ( 1.37) 62 25.0455 0.00 ( -2.97) 0.00 ( 1.35) 63 25.0476 0.00 ( -2.89) 0.00 ( 1.38) 64 25.0476 0.00 ( -2.90) 0.00 ( 1.34) 65 25.0477 0.00 ( -2.97) 0.00 ( 1.41) 66 25.0477 0.00 ( -2.99) 0.00 ( 1.39) 67 25.0479 0.00 ( -2.95) 0.00 ( 1.36) 68 25.0481 0.00 ( -2.82) 0.00 ( 1.34) 69 25.0481 0.00 ( -2.88) 0.00 ( 1.39) 70 25.0584 0.00 -0.29 0.00 0.84 71 25.0585 0.00 0.13 0.00 0.55 72 25.1081 0.00 -0.79 0.00 1.07 73 25.1082 0.00 -0.72 0.00 1.05 74 25.1083 0.00 -0.82 0.00 1.07 75 25.1083 0.00 -0.74 0.00 1.15 76 25.8183 0.00 0.72 0.00 0.93 77 25.8183 0.00 0.66 0.00 1.00 78 25.8184 0.00 0.61 0.00 0.96 79 25.8184 0.00 0.70 0.00 0.93 80 26.0912 0.00 0.12 0.00 0.12 81 26.0913 0.00 0.22 0.00 0.19 82 26.0939 0.00 -0.25 0.00 0.19 83 26.0940 0.00 0.04 0.00 0.22 84 27.0709 0.00 0.45 0.00 -0.13 85 27.0710 0.00 0.30 0.00 -0.06 86 28.2804 0.00 -0.01 0.00 -0.36 87 28.2804 0.00 0.12 0.00 -0.27 88 28.2804 0.00 0.12 0.00 -0.31 89 28.2804 0.00 0.25 0.00 -0.10 90 28.2804 0.00 0.18 0.00 -0.20 91 28.2804 0.00 0.02 0.00 -0.25 92 28.2804 0.00 0.16 0.00 -0.23 93 28.2804 0.00 0.20 0.00 -0.09 94 28.2804 0.00 0.34 0.00 -0.46 95 28.2804 0.00 0.15 0.00 -0.31 96 28.2804 0.00 0.13 0.00 -0.18 97 28.2804 0.00 0.09 0.00 -0.34 98 28.2804 0.00 0.44 0.00 -0.38 99 28.2804 0.00 0.49 0.00 -0.25 100 28.2804 0.00 0.29 0.00 -0.25
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.
120347 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 42.247 42.247 42.247 ecceobj 0.103 0.103 0.103 incobj 23.947 23.947 23.947 qmin 36.820 36.822 36.819 qmax 47.699 47.626 47.650 amean 42.108 42.108 42.108 amin 41.765 41.778 41.767 amax 42.475 42.475 42.483 emean 0.104 0.104 0.104 emin 0.086 0.086 0.087 emax 0.124 0.123 0.123 imean 25.573 25.573 25.573 imin 25.105 25.106 25.097 imax 26.010 26.005 26.003 excite_mean 0.444 0.444 0.444 fracstop 1.000 1.000 1.000 cjmean 2.837 2.837 2.837 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 173.0 173.2 173.2 kozaiamp 180.0 180.0 180.0