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: 79969 # Created Fri May 2 02:36:19 2008 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 40 observations of 40 # Arc: 5.03y # First observation: 1999/02/11 # Last observation: 2004/02/22 # Chi-squared of fit: 290.21 DOF: 74 RMS: 0.48 # Min/Max residuals: -1.24 1.65 # Exact a, adot, b, bdot, g, gdot: 1.754680E-05 3.663636E-02 -1.682332E-08 -2.030618E-03 3.197092E-02 1.539918E-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 -0.177440 157.804069 0.261424 -0.003193 -0.958511 2451220.929613 # Heliocentric elements and errors Epoch: 2451220.5000 = 1999/02/11 Mean Anomaly: 24.06298 +/- 0.000 Argument of Peri: 154.90632 +/- 0.000 Long of Asc Node: 334.23882 +/- 0.000 Inclination: 3.18519 +/- 0.000 Eccentricity: 0.08036602 +/- 0.0000 Semi-Major Axis: 34.73763068 +/- 0.0000 Time of Perihelion: 2446221.9310 +/- 0.0 Perihelion: 31.94590558 +/- 0.0000 Aphelion: 37.52935579 +/- 0.0000 Period (y) 204.7427 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -29.74111989 +/- 0.0000 Ecliptic Y 12.41987533 +/- 0.0000 Ecliptic Z -0.09686404 +/- 0.0000 Ecliptic XDOT -0.00130852 +/- 0.0000 Ecliptic YDOT -0.00284627 +/- 0.0000 Ecliptic ZDOT -0.00017430 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 32.23035229 +/- 0.0000 Geocenter to KBO 31.27843436 +/- 0.0000 # Hcoef: 7.50
The following table shows the complete astrometric record for 79969. 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 (79969) followed by the observatory code and reference code for the source of the astrometry.
1999 02 11.42887 10 37 38.45 +08 28 40.5 22.1R 79969 568 Ca4193 1999 02 11.50747 10 37 37.99 +08 28 43.1 22.1R 79969 568 Ca4193 1999 02 17.57866 10 37 03.12 +08 32 02.5 22.1R 79969 568 Ca4193 1999 02 17.59535 10 37 02.97 +08 32 03.2 22.1R 79969 568 Ca4193 1999 03 10.40940 10 35 00.84 +08 43 42.1 22.1R 79969 568 Ca4506 1999 04 09.26927 10 32 30.78 +08 57 55.7 22.2R 79969 696 Ca4506 1999 04 09.32907 10 32 30.51 +08 57 57.3 22.2R 79969 696 Ca4506 1999 04 09.35016 10 32 30.46 +08 57 57.8 22.2R 79969 696 Ca4506 1999 04 10.30684 10 32 26.69 +08 58 18.5 22.2R 79969 696 Ca4506 1999 04 12.40624 10 32 18.59 +08 59 04.7 22.5R 79969 568 Ca4506 1999 04 12.44895 10 32 18.42 +08 59 05.6 22.5R 79969 568 Ca4506 1999 04 14.18644 10 32 12.08 +08 59 41.9 22.2R 79969 695 Ca9922 1999 04 14.19257 10 32 12.08 +08 59 42.1 22.7R 79969 695 Ca9922 1999 04 14.19639 10 32 12.07 +08 59 42.2 22.3R 79969 695 Ca9922 1999 04 14.28258 10 32 11.76 +08 59 44.1 22.7R 79969 695 Ca9922 1999 04 14.28666 10 32 11.73 +08 59 45.5 23.5R 79969 695 Ca9922 1999 04 14.29047 10 32 11.65 +08 59 43.6 23.0R 79969 695 Ca9922 1999 04 15.15214 10 32 08.69 +09 00 01.4 22.4R 79969 695 Ca9922 1999 04 15.15757 10 32 08.65 +09 00 01.5 22.3R 79969 695 Ca9922 1999 04 15.16139 10 32 08.65 +09 00 01.3 22.4R 79969 695 Ca9922 1999 04 15.27212 10 32 08.32 +09 00 03.3 22.2R 79969 695 Ca9922 1999 04 15.27633 10 32 08.29 +09 00 03.4 22.5R 79969 695 Ca9922 1999 04 15.28015 10 32 08.26 +09 00 03.5 22.4R 79969 695 Ca9922 1999 04 15.28463 10 32 08.26 +09 00 03.9 22.4V 79969 695 Ca9922 1999 04 15.28868 10 32 08.26 +09 00 03.8 22.5V 79969 695 Ca9922 1999 04 15.29250 10 32 08.22 +09 00 04.4 22.6V 79969 695 Ca9922 2001 02 25.46933 10 51 32.50 +06 49 25.6 22.0R 79969 568 Cf1463 2001 02 25.51030 10 51 32.28 +06 49 27.0 79969 568 Cf1463 2001 03 24.21999 10 49 00.29 +07 04 25.3 21.9R 79969 695 Cf1463 2001 03 24.34096 10 48 59.64 +07 04 29.2 79969 695 Cf1463 2002 02 04.57934 11 01 02.91 +05 43 51.7 21.8R 79969 568 Cf1463 2002 02 05.55484 11 00 58.03 +05 44 20.2 79969 568 Cf1463 2002 02 05.61452 11 00 57.72 +05 44 21.6 79969 568 Cf1463 2002 03 20.21598 10 56 58.80 +06 08 06.2 21.5R 79969 695 Cf4341 2002 03 20.34215 10 56 58.11 +06 08 10.7 79969 695 Cf4341 2003 03 30.22932 11 03 39.57 +05 19 05.2 22.1R 79969 695 Ch7806 2003 03 30.32694 11 03 39.06 +05 19 08.6 79969 695 Ch7806 2003 03 31.27632 11 03 34.19 +05 19 38.3 79969 695 Ch7806 2004 02 22.36548 11 14 32.99 +04 03 55.1 22.6R 79969 695 Ck0845 2004 02 22.41658 11 14 32.69 +04 03 56.8 79969 695 Ck0845
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 -0.23 0.00 1.39 2 0.0002 0.00 -0.01 0.00 -0.20 3 0.0168 0.00 0.18 0.00 -0.19 4 0.0169 0.00 -0.60 0.00 -0.04 5 0.0739 0.00 -0.26 0.00 -0.23 6 0.1556 0.00 -0.17 0.00 -0.79 7 0.1558 0.00 -0.55 0.00 -0.54 8 0.1558 0.00 -0.01 0.00 -0.51 9 0.1585 0.00 0.35 0.00 -1.24 10 0.1642 0.00 -0.36 0.00 -0.50 11 0.1643 0.00 -0.46 0.00 -0.49 12 0.1691 0.00 -0.33 0.00 0.06 13 0.1691 0.00 0.00 0.00 0.14 14 0.1691 0.00 0.07 0.00 0.16 15 0.1693 0.00 0.16 0.00 0.33 16 0.1694 0.00 -0.06 0.00 1.65 17 0.1694 0.00 -1.06 0.00 -0.33 18 0.1717 0.00 0.01 0.00 0.36 19 0.1717 0.00 -0.30 0.00 0.36 20 0.1718 0.00 -0.09 0.00 0.08 21 0.1721 0.00 0.91 0.00 -0.08 22 0.1721 0.00 0.69 0.00 -0.06 23 0.1721 0.00 0.44 0.00 -0.04 24 0.1721 0.00 0.68 0.00 0.28 25 0.1721 0.00 0.90 0.00 0.10 26 0.1721 0.00 0.50 0.00 0.62 27 2.0398 0.00 0.82 0.00 0.40 28 2.0399 0.00 1.16 0.00 0.39 29 2.1130 0.00 0.00 0.00 0.15 30 2.1134 0.00 0.02 0.00 0.26 31 2.9819 0.00 0.21 0.00 0.18 32 2.9846 0.00 -0.25 0.00 0.21 33 2.9848 0.00 -0.33 0.00 -0.14 34 3.1014 0.00 -0.09 0.00 -0.09 35 3.1017 0.00 0.19 0.00 0.22 36 4.1281 0.00 -0.20 0.00 -0.44 37 4.1284 0.00 -0.16 0.00 -0.12 38 4.1310 0.00 -0.24 0.00 -0.22 39 5.0293 0.00 0.26 0.00 -0.13 40 5.0294 0.00 0.07 0.00 -0.14
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.
79969 quality flag:3 Type: 5:4E 5:4E 5:4E axisobj 34.813 34.813 34.813 ecceobj 0.083 0.083 0.083 incobj 3.180 3.180 3.180 qmin 31.372 31.371 31.372 qmax 38.767 38.766 38.769 amean 34.945 34.945 34.945 amin 34.649 34.649 34.648 amax 35.270 35.270 35.270 emean 0.080 0.080 0.080 emin 0.060 0.060 0.060 emax 0.101 0.100 0.101 imean 5.400 5.400 5.400 imin 3.822 3.821 3.823 imax 6.684 6.684 6.684 fracstop 1.000 1.000 1.000 cjmean 3.000 3.000 3.000 libcent 0 179.7 179.7 179.7 libamp 0 54.3 54.4 54.3 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 179.6 179.4 179.6 kozaiamp 180.0 180.0 180.0