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: 53311
# Created Fri May 2 02:36:17 2008
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 34 observations of 34
# Arc: 4.13y
# First observation: 1999/04/12
# Last observation: 2003/05/31
# Chi-squared of fit: 89.80 DOF: 62 RMS: 0.29
# Min/Max residuals: -0.63 0.98
# Exact a, adot, b, bdot, g, gdot:
1.442678E-05 2.217345E-02 1.997598E-06 -1.261594E-04 2.334022E-02 -1.351078E-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
0.171966 -155.771328 0.046716 0.002834 -1.009007 2451280.554903
# Heliocentric elements and errors
Epoch: 2451280.5000 = 1999/04/12
Mean Anomaly: 272.94579 +/- 0.000
Argument of Peri: 246.99349 +/- 0.000
Long of Asc Node: 51.40221 +/- 0.000
Inclination: 0.36741 +/- 0.000
Eccentricity: 0.06256504 +/- 0.0000
Semi-Major Axis: 43.81527527 +/- 0.0000
Time of Perihelion: 2476897.2484 +/- 0.0
Perihelion: 41.07397096 +/- 0.0000
Aphelion: 46.55657957 +/- 0.0000
Period (y) 290.0324 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -40.00123749 +/- 0.0000
Ecliptic Y -17.95384998 +/- 0.0000
Ecliptic Z 0.12865111 +/- 0.0000
Ecliptic XDOT 0.00120948 +/- 0.0000
Ecliptic YDOT -0.00229807 +/- 0.0000
Ecliptic ZDOT -0.00001526 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 43.84586407 +/- 0.0000
Geocenter to KBO 42.84455484 +/- 0.0000
# Hcoef: 6.57
The following table shows the complete astrometric record for 53311. 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 (53311) followed by the observatory code and reference code for the source of the astrometry.
1999 04 12.05416 13 29 59.77 -09 14 06.2 53311 809 Ca5907 1999 04 12.06642 13 29 59.72 -09 14 05.7 53311 809 Ca5907 1999 04 12.07867 13 29 59.66 -09 14 05.2 53311 809 Ca5907 1999 04 13.06350 13 29 55.33 -09 13 40.2 24.5V 53311 809 Ca5907 1999 04 13.07607 13 29 55.27 -09 13 39.7 53311 809 Ca5907 1999 04 13.08839 13 29 55.20 -09 13 39.5 53311 809 Ca5907 1999 04 18.20550 13 29 32.70 -09 11 28.1 22.4R 53311 695 Ca4930 1999 04 18.27939 13 29 32.38 -09 11 26.0 53311 695 Ca4930 1999 04 18.38513 13 29 31.86 -09 11 23.4 53311 695 Ca4930 1999 05 05.96981 13 28 17.03 -09 04 06.6 53311 950 Ca4930 1999 05 06.03200 13 28 16.77 -09 04 04.9 53311 950 Ca4930 1999 05 21.27228 13 27 19.81 -08 58 32.9 22.8R 53311 697 Cb0831 1999 05 21.32431 13 27 19.64 -08 58 31.8 22.9R 53311 697 Cb0831 2000 03 29.54345 13 35 41.39 -09 47 38.5 22.8R 53311 568 Cb1943 2000 03 29.57254 13 35 41.28 -09 47 37.9 22.6R 53311 568 Cb1943 2000 03 29.59906 13 35 41.16 -09 47 37.1 22.9R 53311 568 Cb1943 2000 03 31.56435 13 35 32.86 -09 46 49.3 22.7R 53311 568 Cb1943 2000 03 31.58795 13 35 32.75 -09 46 48.8 23.0R 53311 568 Cb1943 2000 04 02.58228 13 35 24.24 -09 45 59.4 22.9R 53311 568 Cb1943 2000 04 02.61047 13 35 24.11 -09 45 58.6 22.9R 53311 568 Cb1943 2001 03 24.17225 13 40 52.49 -10 17 48.7 23.0 53311 304 Ce8605 2001 03 24.20654 13 40 52.34 -10 17 48.0 53311 304 Ce8605 2001 03 24.40679 13 40 51.56 -10 17 44.4 22.6R 53311 695 Cc7487 2001 03 24.48279 13 40 51.25 -10 17 42.9 53311 695 Cc7487 2002 04 07.16033 13 44 45.01 -10 40 15.2 22.0R 53311 807 Cf4290 2002 04 07.22458 13 44 44.71 -10 40 13.8 53311 807 Cf4290 2002 04 08.20355 13 44 40.45 -10 39 49.3 53311 807 Cf4290 2002 08 09.00130 13 40 37.52 -10 17 20.0 22.2R 53311 807 Ch1150 2002 08 10.00224 13 40 40.02 -10 17 34.4 22.5R 53311 807 2002 08 11.00470 13 40 42.60 -10 17 48.8 53311 807 Ch1150 2002 08 12.00263 13 40 45.26 -10 18 04.4 53311 807 2003 05 30.01916 13 45 59.89 -10 47 51.7 21.7R 53311 807 i2202 2003 05 30.11167 13 45 59.57 -10 47 49.9 53311 807 i2202 2003 05 31.05923 13 45 56.55 -10 47 33.1 53311 807 i2202
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 -0.14 0.00 0.73 2 0.0000 0.00 0.07 0.00 -0.28 3 0.0001 0.00 -0.01 0.00 -0.09 4 0.0028 0.00 0.06 0.00 -0.39 5 0.0028 0.00 0.00 0.00 -0.21 6 0.0028 0.00 -0.23 0.00 -0.33 7 0.0168 0.00 0.27 0.00 -0.23 8 0.0170 0.00 0.42 0.00 -0.02 9 0.0173 0.00 -0.30 0.00 -0.13 10 0.0655 0.00 -0.08 0.00 -0.13 11 0.0656 0.00 -0.14 0.00 0.11 12 0.1074 0.00 0.11 0.00 0.11 13 0.1075 0.00 0.25 0.00 0.18 14 0.9651 0.00 -0.03 0.00 0.12 15 0.9651 0.00 0.18 0.00 0.01 16 0.9652 0.00 0.07 0.00 0.17 17 0.9706 0.00 0.07 0.00 0.08 18 0.9707 0.00 -0.05 0.00 0.00 19 0.9761 0.00 0.09 0.00 0.25 20 0.9762 0.00 -0.02 0.00 0.35 21 1.9497 0.00 0.01 0.00 0.98 22 1.9498 0.00 -0.16 0.00 0.90 23 1.9503 0.00 0.24 0.00 0.15 24 1.9505 0.00 0.23 0.00 -0.09 25 2.9873 0.00 0.46 0.00 -0.46 26 2.9875 0.00 0.23 0.00 -0.63 27 2.9901 0.00 0.33 0.00 -0.14 28 3.3263 0.00 0.18 0.00 -0.38 29 3.3291 0.00 0.10 0.00 -0.24 30 3.3318 0.00 -0.03 0.00 0.38 31 3.3346 0.00 0.05 0.00 0.17 32 4.1313 0.00 -0.16 0.00 -0.21 33 4.1316 0.00 -0.38 0.00 -0.06 34 4.1342 0.00 -0.34 0.00 -0.05
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.
53311 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.809 43.808 43.809 ecceobj 0.061 0.061 0.061 incobj 0.366 0.366 0.366 qmin 40.770 40.771 40.764 qmax 47.709 47.709 47.721 amean 44.133 44.133 44.133 amin 43.783 43.786 43.783 amax 44.499 44.498 44.497 emean 0.058 0.058 0.058 emin 0.041 0.041 0.041 emax 0.073 0.073 0.073 imean 1.629 1.629 1.629 imin 0.912 0.912 0.912 imax 2.182 2.183 2.183 fracstop 1.000 1.000 1.000 cjmean 3.098 3.098 3.098 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 177.6 177.8 177.5 kozaiamp 180.0 179.9 180.0