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: 26308
# Created Wed May 22 01:36:25 2013
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 83 observations of 83
# Arc: 27.25y
# First observation: 1982/10/12
# Last observation: 2010/01/10
# Chi-squared of fit: 578.33 DOF: 160 RMS: 0.47
# Min/Max residuals: -1.08 1.47
# Exact a, adot, b, bdot, g, gdot:
2.363715E-05 4.356599E-02 -5.806743E-06 -9.021369E-03 3.358133E-02 3.149085E-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
6.632545 -26.468204 -0.721235 0.081314 -0.697149 2445254.955166
# Heliocentric elements and errors
Epoch: 2445254.5000 = 1982/10/12
Mean Anomaly: 8.82513 +/- 0.000
Argument of Peri: 130.61262 +/- 0.000
Long of Asc Node: 183.07019 +/- 0.000
Inclination: 13.51634 +/- 0.000
Eccentricity: 0.37178283 +/- 0.0000
Semi-Major Axis: 47.68637221 +/- 0.0000
Time of Perihelion: 2442305.9513 +/- 0.0
Perihelion: 29.95739771 +/- 0.0000
Aphelion: 65.41534671 +/- 0.0000
Period (y) 329.3060 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 27.42245189 +/- 0.0000
Ecliptic Y -12.85737980 +/- 0.0000
Ecliptic Z 3.43928018 +/- 0.0000
Ecliptic XDOT 0.00189363 +/- 0.0000
Ecliptic YDOT 0.00302210 +/- 0.0000
Ecliptic ZDOT -0.00070103 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 30.48160228 +/- 0.0000
Geocenter to KBO 29.77844861 +/- 0.0000
# Hcoef: 5.79
The following table shows the complete astrometric record for 26308. 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 (26308) followed by the observatory code and reference code for the source of the astrometry.
1982 10 12.45455 22 12 11.49 -04 01 17.8 26308 260 d1201 1983 07 16.71799 22 29 34.84 -02 45 07.7 26308 260 d1201 1988 08 18.35938 23 15 48.63 -00 55 41.7 26308 261 d1201 1988 10 08.21354 23 11 19.42 -01 29 24.6 26308 261 d1201 1990 08 29.36285 23 33 35.32 -00 13 03.9 26308 261 d1201 1992 09 01.36285 23 51 24.18 +00 32 18.9 26308 261 d1201 1998 09 16.38943 00 41 12.15 +02 35 47.5 22.1V 26308 691 Ca5543 1998 09 16.41005 00 41 12.05 +02 35 46.5 22.2V 26308 691 Ca5543 1998 09 16.43088 00 41 11.92 +02 35 46.0 22.1V 26308 691 Ca5543 1998 09 24.34651 00 40 31.89 +02 30 44.7 21.8V 26308 691 Ca5543 1998 09 24.36729 00 40 31.77 +02 30 43.9 21.7V 26308 691 Ca5543 1998 09 24.38820 00 40 31.67 +02 30 43.0 21.6V 26308 691 Ca5543 1999 08 11.45125 00 51 29.27 +03 14 57.0 26308 675 Ca7791 1999 08 11.46649 00 51 29.23 +03 14 56.6 26308 675 Ca7791 1999 08 11.48224 00 51 29.19 +03 14 56.2 26308 675 Ca7791 1999 09 08.41847 00 49 51.49 +03 01 07.5 21.6V 26308 691 Cb3538 1999 09 08.43951 00 49 51.47 +03 01 06.8 21.6V 26308 691 Cb3538 1999 09 08.46021 00 49 51.33 +03 01 06.1 21.5V 26308 691 Cb3538 1999 09 13.39021 00 49 28.75 +02 58 10.8 26308 695 Ca7791 1999 09 13.46157 00 49 28.41 +02 58 08.2 26308 695 Ca7791 1999 09 13.47244 00 49 28.36 +02 58 07.8 26308 695 Ca7791 1999 10 04.23456 00 47 43.95 +02 45 07.1 20.1V 26308 691 Ca6739 1999 10 04.25626 00 47 43.86 +02 45 05.7 20.0V 26308 691 Ca6739 1999 10 04.27714 00 47 43.74 +02 45 05.1 20.3V 26308 691 Ca6739 1999 10 06.26694 00 47 33.35 +02 43 49.2 20.7V 26308 691 Ca6739 1999 10 06.33747 00 47 32.99 +02 43 46.6 20.7V 26308 691 Ca6739 1999 10 08.30053 00 47 22.76 +02 42 32.2 20.9V 26308 691 Ca6739 1999 10 08.37080 00 47 22.39 +02 42 29.5 21.0V 26308 691 Ca6739 1999 10 10.24099 00 47 12.54 +02 41 19.9 21.0V 26308 691 Ca6739 1999 10 10.31078 00 47 12.12 +02 41 16.2 21.3V 26308 691 Ca6739 1999 10 31.27328 00 45 27.94 +02 28 57.9 20.9V 26308 691 Ca7321 1999 10 31.29419 00 45 27.93 +02 28 57.9 20.9V 26308 691 Ca7321 1999 10 31.31506 00 45 27.77 +02 28 57.2 20.7V 26308 691 Ca7321 1999 10 31.85235 00 45 25.28 +02 28 38.7 20.2R 26308 540 Ca7791 1999 10 31.89711 00 45 25.09 +02 28 38.3 26308 540 Ca7791 1999 11 11.18337 00 44 41.32 +02 23 33.0 20.6V 26308 691 Ca7321 1999 11 11.20446 00 44 41.21 +02 23 33.0 20.7V 26308 691 Ca7321 1999 11 11.22591 00 44 41.19 +02 23 31.5 20.7V 26308 691 Ca7321 2000 08 03.34435 00 59 29.10 +03 36 49.2 21.0R 26308 809 Cc2187 2000 08 03.38055 00 59 29.05 +03 36 48.5 21.1R 26308 809 Cc2187 2000 08 03.40758 00 59 29.00 +03 36 48.1 21.0R 26308 809 Cc2187 2000 08 07.34387 00 59 22.46 +03 35 31.8 21.0R 26308 809 Cc2187 2000 08 07.37164 00 59 22.40 +03 35 31.2 21.3R 26308 809 Cc2187 2000 08 07.40495 00 59 22.34 +03 35 30.6 21.3R 26308 809 Cc2187 2000 09 29.15845 00 55 59.79 +03 07 48.4 26308 829 Cf6551 2000 09 29.16549 00 55 59.75 +03 07 48.2 26308 829 Cf6551 2000 09 29.19609 00 55 59.59 +03 07 46.9 26308 829 Cf6551 2000 09 29.20655 00 55 59.53 +03 07 46.2 26308 829 Cf6551 2000 10 02.36391 00 55 43.20 +03 05 46.9 26308 684 Cb9006 2000 10 02.39586 00 55 43.07 +03 05 45.7 26308 684 Cb9006 2000 10 03.33523 00 55 38.22 +03 05 10.3 26308 684 Cb9006 2000 10 03.36994 00 55 38.01 +03 05 09.3 26308 684 Cb9006 2001 09 15.28794 01 04 52.67 +03 35 39.7 21.5 26308 644 Cj0191 2001 10 20.39171 01 01 56.14 +03 14 20.0 26308 644 Ch2590 2001 10 20.41404 01 01 56.05 +03 14 19.0 26308 644 Ch2590 2001 10 20.43542 01 01 55.89 +03 14 18.1 26308 644 Ch2590 2001 10 21.34929 01 01 51.33 +03 13 47.0 22. 26308 644 Cj0191 2002 09 28.20769 01 11 26.91 +03 46 36.8 26308 644 Ch2590 2002 09 28.28083 01 11 26.53 +03 46 34.5 26308 644 Ch2590 2002 09 28.34954 01 11 26.14 +03 46 32.7 26308 644 Ch2590 2005 10 27.22228 01 30 54.59 +04 22 04.9 26308 701 Co6544 2005 10 27.29792 01 30 54.28 +04 22 02.1 26308 701 Co6544 2005 10 27.37348 01 30 53.91 +04 22 00.8 26308 701 Co6544 2006 01 28.10880 01 28 00.27 +04 09 00.6 21.2R 26308 688 Cq2264 2006 01 28.15580 01 28 00.41 +04 09 01.4 26308 688 Cq2264 2006 01 28.19284 01 28 00.50 +04 09 02.1 26308 688 Cq2264 2006 01 30.09714 01 28 05.59 +04 09 41.3 21.2R 26308 688 Cq2264 2006 01 30.14368 01 28 05.73 +04 09 42.1 26308 688 Cq2264 2006 01 30.19065 01 28 05.87 +04 09 42.4 26308 688 Cq2264 2007 09 10.42021 01 48 29.449 +05 20 06.31 21.5R 26308 675 Cv5421 2007 09 10.46222 01 48 29.306 +05 20 05.13 21.3R 26308 675 Cv5421 2007 09 11.33041 01 48 26.236 +05 19 38.92 21.4R 26308 675 Cv5421 2007 09 11.37385 01 48 26.092 +05 19 37.36 21.5R 26308 675 Cv5421 2008 10 23.37809 01 51 59.00 +05 11 36.4 21.5r 26308 695 C~0gQj 2008 10 23.42913 01 51 58.75 +05 11 34.8 21.8r 26308 695 C~0gQj 2010 01 10.61163 01 54 22.87 +05 06 46.2 26308 250 S~0MCe 2010 01 10.61402 01 54 22.87 +05 06 46.2 26308 250 S~0MCe 2010 01 10.61683 01 54 22.87 +05 06 46.2 26308 250 S~0MCe 2010 01 10.61921 01 54 22.87 +05 06 46.3 26308 250 S~0MCe 2010 01 10.62429 01 54 22.88 +05 06 46.6 26308 250 S~0MCe 2010 01 10.62985 01 54 22.88 +05 06 46.7 26308 250 S~0MCe 2010 01 10.63601 01 54 22.88 +05 06 46.5 26308 250 S~0MCe 2010 01 10.64156 01 54 22.88 +05 06 46.6 26308 250 S~0MCe
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 0.00 0.00 0.29 2 0.7591 0.00 0.53 0.00 0.03 3 5.8505 0.00 0.78 0.00 0.25 4 5.9898 0.00 -0.05 0.00 1.07 5 7.8793 0.00 0.31 0.00 0.64 6 9.8889 0.00 -0.64 0.00 -0.17 7 15.9286 0.00 -0.28 0.00 -0.10 8 15.9287 0.00 -0.23 0.00 -0.32 9 15.9288 0.00 -0.61 0.00 -0.04 10 15.9504 0.00 -0.65 0.00 -0.08 11 15.9505 0.00 -0.82 0.00 -0.08 12 15.9505 0.00 -0.67 0.00 -0.18 13 16.8296 0.00 0.57 0.00 -0.35 14 16.8296 0.00 0.54 0.00 -0.39 15 16.8296 0.00 0.52 0.00 -0.43 16 16.9061 0.00 -0.20 0.00 -0.34 17 16.9062 0.00 0.93 0.00 -0.31 18 16.9062 0.00 0.24 0.00 -0.28 19 16.9197 0.00 0.01 0.00 0.00 20 16.9199 0.00 0.04 0.00 -0.01 21 16.9200 0.00 0.06 0.00 -0.01 22 16.9768 0.00 0.07 0.00 0.09 23 16.9769 0.00 0.45 0.00 -0.48 24 16.9769 0.00 0.32 0.00 -0.28 25 16.9824 0.00 0.45 0.00 -0.51 26 16.9826 0.00 0.68 0.00 -0.43 27 16.9879 0.00 1.11 0.00 -0.46 28 16.9881 0.00 1.16 0.00 -0.50 29 16.9933 0.00 -0.33 0.00 0.38 30 16.9934 0.00 -1.08 0.00 -0.70 31 17.0508 0.00 -0.25 0.00 0.43 32 17.0509 0.00 1.07 0.00 1.10 33 17.0510 0.00 0.13 0.00 1.07 34 17.0524 0.00 -0.51 0.00 -0.20 35 17.0525 0.00 -0.25 0.00 0.82 36 17.0807 0.00 0.51 0.00 -0.05 37 17.0808 0.00 0.13 0.00 0.52 38 17.0808 0.00 1.12 0.00 -0.40 39 17.8094 0.00 -0.24 0.00 -0.08 40 17.8095 0.00 -0.14 0.00 -0.11 41 17.8096 0.00 -0.25 0.00 -0.02 42 17.8204 0.00 -0.04 0.00 0.27 43 17.8204 0.00 -0.13 0.00 0.24 44 17.8205 0.00 -0.05 0.00 0.33 45 17.9650 0.00 0.06 0.00 0.14 46 17.9650 0.00 0.01 0.00 0.21 47 17.9651 0.00 0.01 0.00 0.06 48 17.9651 0.00 -0.07 0.00 -0.25 49 17.9737 0.00 -0.77 0.00 -0.34 50 17.9738 0.00 -0.20 0.00 -0.34 51 17.9764 0.00 -0.01 0.00 -0.38 52 17.9765 0.00 -0.42 0.00 -0.08 53 18.9263 0.00 -0.39 0.00 -0.61 54 19.0224 0.00 -0.47 0.00 0.18 55 19.0225 0.00 -0.10 0.00 -0.04 56 19.0225 0.00 -0.85 0.00 -0.19 57 19.0250 0.00 0.06 0.00 0.55 58 19.9610 0.00 0.71 0.00 -0.95 59 19.9612 0.00 0.53 0.00 -0.59 60 19.9614 0.00 -0.12 0.00 0.11 61 23.0411 0.00 0.11 0.00 -0.39 62 23.0413 0.00 1.25 0.00 -0.78 63 23.0415 0.00 1.47 0.00 0.34 64 23.2954 0.00 -0.17 0.00 0.65 65 23.2956 0.00 0.15 0.00 0.53 66 23.2957 0.00 0.09 0.00 0.50 67 23.3009 0.00 -0.40 0.00 1.07 68 23.3010 0.00 -0.20 0.00 0.90 69 23.3011 0.00 -0.03 0.00 0.22 70 24.9116 0.00 0.09 0.00 0.38 71 24.9117 0.00 0.19 0.00 0.46 72 24.9141 0.00 -0.31 0.00 0.30 73 24.9142 0.00 -0.11 0.00 0.04 74 26.0313 0.00 0.15 0.00 0.35 75 26.0314 0.00 0.30 0.00 0.36 76 27.2475 0.00 -0.18 0.00 -0.20 77 27.2475 0.00 -0.18 0.00 -0.22 78 27.2475 0.00 -0.18 0.00 -0.24 79 27.2475 0.00 -0.18 0.00 -0.15 80 27.2476 0.00 -0.02 0.00 0.11 81 27.2476 0.00 -0.02 0.00 0.17 82 27.2476 0.00 -0.01 0.00 -0.07 83 27.2476 0.00 -0.01 0.00 -0.01
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.
26308 quality flag:3 Type: 2:1E 2:1E 2:1E Type: 6:3EII 6:3EII 6:3EII axisobj 48.162 48.162 48.162 ecceobj 0.375 0.375 0.375 incobj 13.463 13.463 13.463 qmin 28.709 28.707 28.711 qmax 67.915 67.927 67.901 amean 47.797 47.796 47.797 amin 47.285 47.285 47.284 amax 48.525 48.531 48.519 emean 0.375 0.375 0.375 emin 0.349 0.349 0.349 emax 0.400 0.400 0.399 imean 13.075 13.073 13.073 imin 11.524 11.520 11.528 imax 14.920 14.918 14.918 excite_mean 0.439 0.439 0.439 fracstop 1.000 1.000 1.000 cjmean 2.904 2.904 2.904 libcent 0 66.8 67.0 66.6 libamp 0 16.2 16.1 16.2 libcent 1 123.9 123.4 123.8 libamp 1 91.5 91.2 91.4 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 138.8 138.8 138.8 kozaiamp 25.9 26.0 25.9