The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory.
# Object: 84719 # Created Fri May 2 02:36:19 2008 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 54 observations of 57 # Arc: 22.82y # First observation: 1983/10/01 # Last observation: 2006/07/26 # Chi-squared of fit: 301.20 DOF: 102 RMS: 0.42 # Min/Max residuals: -0.96 1.10 # Exact a, adot, b, bdot, g, gdot: 1.564754E-05 4.044377E-02 3.090964E-06 8.934185E-03 3.349897E-02 6.092574E-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 -6.622267 -4.091344 -0.219459 -0.113033 -0.975455 2445609.061707 # Heliocentric elements and errors Epoch: 2445610.5000 = 1983/10/03 Mean Anomaly: 25.99782 +/- 0.000 Argument of Peri: 287.96248 +/- 0.000 Long of Asc Node: 23.03297 +/- 0.000 Inclination: 14.02852 +/- 0.000 Eccentricity: 0.26638710 +/- 0.0000 Semi-Major Axis: 39.47221152 +/- 0.0000 Time of Perihelion: 2439069.1110 +/- 0.0 Perihelion: 28.95732367 +/- 0.0000 Aphelion: 49.98709936 +/- 0.0000 Period (y) 247.9964 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 30.56832713 +/- 0.0000 Ecliptic Y -1.97522122 +/- 0.0000 Ecliptic Z -3.44251203 +/- 0.0000 Ecliptic XDOT 0.00082123 +/- 0.0000 Ecliptic YDOT 0.00325308 +/- 0.0000 Ecliptic ZDOT 0.00066773 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 30.82481767 +/- 0.0000 Geocenter to KBO 29.85161691 +/- 0.0000 # Hcoef: 5.42
The following table shows the complete astrometric record for 84719. 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 (84719) followed by the observatory code and reference code for the source of the astrometry.
1983 10 01.56108 23 55 34.26 -07 42 02.4 84719 260 k6237 1987 08 23.40798 00 29 00.53 -01 51 23.0 84719 261 k6237 2001 10 11.45999 01 57 12.27 +14 22 34.3 20.1R 84719 644 Cj0972 2001 10 11.48098 01 57 12.13 +14 22 33.4 20.0R 84719 644 Cj0972 2001 10 19.35412 01 56 27.89 +14 19 15.7 20.2R 84719 644 Cj0972 2001 10 19.37556 01 56 27.75 +14 19 15.5 20.3R 84719 644 Cj0972 2001 10 19.39668 01 56 27.67 +14 19 15.3 19.9R 84719 644 Cj0972 2001 10 26.29491 01 55 48.32 +14 16 15.3 20.3R 84719 644 Cj0972 2001 10 26.31619 01 55 48.11 +14 16 14.8 20.4R 84719 644 Cj0972 2001 10 26.33844 01 55 48.02 +14 16 14.6 19.8R 84719 644 Cj0972 2002 09 10.63135 02 05 48.96 +15 32 01.0 84719 608 Ch1653 2002 09 17.63412 02 05 21.29 +15 30 31.4 84719 608 Ch1653 2002 10 28.20252 02 01 49.34 +15 15 58.8 84719 644 Ch1653 2002 10 28.26564 02 01 48.98 +15 15 57.2 84719 644 Ch1653 2002 10 28.32814 02 01 48.65 +15 15 55.0 84719 644 Ch1653 2002 11 03.11081 02 01 15.81 +15 13 24.7 21.2 84719 644 Cg8318 2002 11 03.17779 02 01 15.44 +15 13 22.9 21.6 84719 644 Cg8318 2002 11 03.23868 02 01 15.07 +15 13 21.2 21.4 84719 644 Cg8318 2002 11 10.20572 02 00 36.32 +15 10 20.1 21.9R 84719 926 Cg8318 2002 11 10.20985 02 00 36.30 +15 10 19.1 21.3R 84719 926 Cg8318 2002 11 10.25475 02 00 36.06 +15 10 18.2 20.4R 84719 926 Cg8318 2002 11 10.25889 02 00 36.01 +15 10 18.5 20.5R 84719 926 Cg8318 2002 11 10.29611 02 00 35.86 +15 10 17.7 21.3R 84719 926 Cg8318 2002 11 10.30021 02 00 35.79 +15 10 17.4 20.8R 84719 926 Cg8318 2002 11 10.34089 02 00 35.61 +15 10 16.0 21.0R 84719 926 Cg8318 2002 11 10.34502 02 00 35.57 +15 10 15.6 21.2R 84719 926 Cg8318 2002 11 11.25659 02 00 30.56 +15 09 52.7 84719 675 Cg8318 2002 11 11.29885 02 00 30.36 +15 09 51.4 84719 675 Cg8318 2002 11 11.34205 02 00 30.16 +15 09 50.5 84719 675 Cg8318 2002 11 12.28010 02 00 25.07 +15 09 26.0 84719 644 Ch1653 2002 11 12.30118 02 00 24.92 +15 09 25.0 84719 644 Ch1653 2002 11 23.11529 01 59 29.33 +15 04 56.0 84719 644 Ch1653 2002 12 5.16024 01 58 35.468 +15 00 26.73 19.8R 84719 662 2002 12 5.22950 01 58 35.183 +15 00 25.27 84719 662 2003 09 02.11521 02 12 21.01 +16 30 53.4 20.8R 84719 621 Ci5231 2003 09 02.13854 02 12 20.95 +16 30 53.5 20.9R 84719 621 Ci5231 2003 09 04.07297 02 12 15.47 +16 30 42.7 20.8R 84719 621 Ci5231 2003 09 04.09628 02 12 15.43 +16 30 42.3 20.8R 84719 621 Ci5231 2003 09 21.06628 02 11 13.36 +16 27 47.7 20.4R 84719 621 Ci5231 2003 09 21.10133 02 11 13.23 +16 27 47.0 20.6R 84719 621 Ci5231 2003 09 21.99836 02 11 09.33 +16 27 34.1 20.7R 84719 621 Ci5231 2003 09 22.03336 02 11 09.16 +16 27 34.0 20.9R 84719 621 Ci5231 2003 10 19.34686 02 08 48.86 +16 18 33.3 21.1V 84719 691 Ck3848 2003 10 19.37508 02 08 48.72 +16 18 33.7 20.6V 84719 691 Ck3848 2003 10 19.40292 02 08 48.54 +16 18 32.4 21.3V 84719 691 Ck3848 2003 11 19.08617 02 05 57.41 +16 05 40.8 20.7V 84719 691 Ck3848 2003 11 19.11391 02 05 57.25 +16 05 37.8 21.4V 84719 691 Ck3848 2003 11 19.14197 02 05 57.10 +16 05 36.8 21.5V 84719 691 Ck3848 2005 12 10.21041 02 16 21.34 +17 50 34.0 84719 701 Cp5700 2005 12 10.29304 02 16 20.95 +17 50 31.7 84719 701 Cp5700 2005 12 20.11666 02 15 46.04 +17 47 25.8 84719 701 Cp6298 2005 12 20.22082 02 15 45.75 +17 47 24.4 84719 701 Cp6298 2005 12 20.32499 02 15 45.35 +17 47 22.2 84719 701 Cp6298 2006 07 26.19990 02 30 27.769 +19 08 04.80 20.2R 84719 500 2006 07 26.20430 02 30 27.780 +19 08 04.89 84719 500 2006 07 26.20870 02 30 27.787 +19 08 04.98 84719 500 2006 07 26.24840 02 30 27.854 +19 08 05.73 84719 500
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 0.07 0.00 0.79 2 3.8928 0.00 -0.85 0.00 -0.87 3 18.0285 0.00 0.34 0.00 0.64 4 18.0285 0.00 0.01 0.00 0.25 5 18.0501 0.00 0.29 0.00 -0.41 6 18.0501 0.00 0.04 0.00 -0.05 7 18.0502 0.00 0.67 0.00 0.29 8 18.0691 0.00 0.52 0.00 0.37 9 18.0691 0.00 -0.78 0.00 0.43 10 18.0692 0.00 -0.20 0.00 0.82 11 18.9434 0.00 ( 0.23) 0.00 ( 2.37) 12 18.9626 0.00 ( -0.77) 0.00 ( 2.61) 13 19.0736 0.00 -0.41 0.00 0.11 14 19.0738 0.00 -0.33 0.00 0.13 15 19.0740 0.00 0.16 0.00 -0.45 16 19.0898 0.00 0.12 0.00 -0.03 17 19.0900 0.00 0.29 0.00 -0.10 18 19.0902 0.00 -0.03 0.00 -0.22 19 19.1092 0.00 -0.09 0.00 0.42 20 19.1092 0.00 -0.05 0.00 -0.47 21 19.1094 0.00 0.09 0.00 -0.21 22 19.1094 0.00 -0.31 0.00 0.19 23 19.1095 0.00 0.54 0.00 0.36 24 19.1095 0.00 -0.17 0.00 0.17 25 19.1096 0.00 0.52 0.00 -0.17 26 19.1096 0.00 0.26 0.00 -0.47 27 19.1121 0.00 -0.61 0.00 0.21 28 19.1122 0.00 -0.12 0.00 0.00 29 19.1123 0.00 0.46 0.00 0.22 30 19.1149 0.00 0.10 0.00 -0.11 31 19.1150 0.00 -0.42 0.00 -0.57 32 19.1446 0.00 0.26 0.00 0.20 33 19.1775 0.00 0.24 0.00 0.42 34 19.1777 0.00 0.23 0.00 0.38 35 19.9194 0.00 0.02 0.00 -0.04 36 19.9194 0.00 0.11 0.00 0.18 37 19.9247 0.00 0.04 0.00 0.08 38 19.9248 0.00 0.49 0.00 -0.18 39 19.9713 0.00 0.17 0.00 -0.21 40 19.9714 0.00 0.54 0.00 -0.40 41 19.9738 0.00 0.66 0.00 -0.27 42 19.9739 0.00 0.46 0.00 0.15 43 20.0487 0.00 0.05 0.00 -0.18 44 20.0488 0.00 0.38 0.00 0.90 45 20.0488 0.00 0.07 0.00 0.26 46 20.1329 0.00 ( 0.62) 0.00 ( 2.42) 47 20.1329 0.00 0.40 0.00 0.10 48 20.1330 0.00 0.36 0.00 -0.21 49 22.1921 0.00 0.12 0.00 0.12 50 22.1923 0.00 -0.70 0.00 -0.47 51 22.2192 0.00 -0.55 0.00 -0.24 52 22.2195 0.00 0.09 0.00 0.16 53 22.2198 0.00 -0.96 0.00 -0.23 54 22.8163 0.00 1.05 0.00 0.23 55 22.8163 0.00 1.10 0.00 0.24 56 22.8163 0.00 1.10 0.00 0.24 57 22.8164 0.00 1.09 0.00 0.24
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.
84719 quality flag:3 Type: 3:2E 3:2E 3:2E Type: 6:4II 6:4II 6:4II axisobj 39.784 39.785 39.784 ecceobj 0.267 0.267 0.267 incobj 13.973 13.973 13.973 qmin 27.704 27.704 27.703 qmax 51.670 51.674 51.665 amean 39.454 39.455 39.454 amin 39.105 39.107 39.103 amax 39.901 39.901 39.900 emean 0.249 0.249 0.249 emin 0.196 0.196 0.196 emax 0.296 0.296 0.296 imean 14.335 14.336 14.335 imin 11.811 11.812 11.810 imax 16.523 16.523 16.522 fracstop 1.000 1.000 1.000 cjmean 2.910 2.910 2.910 libcent 0 180.1 180.0 180.2 libamp 0 25.7 25.8 25.5 libcent 1 183.5 183.9 183.5 libamp 1 120.6 121.4 120.8 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 272.4 272.4 272.4 kozaiamp 44.0 44.0 44.0