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: 01QP297 # Created Fri May 2 02:36:34 2008 # Orbit generated from Bernstein formalism # Fitting 17 observations of 17 # Arc: 4.03y # First observation: 2001/08/19 # Last observation: 2005/08/30 Preliminary a, adot, b, bdot, g, gdot: -0.000162 0.022694 0.000001 -0.000277 0.023214 0.000000 # WARNING -- MRQMIN stopped after 17 iterations # Chi-squared of fit: 18.95 DOF: 28 RMS: 0.19 # Min/Max residuals: -0.42 0.35 # Exact a, adot, b, bdot, g, gdot: 1.393484E-05 2.285433E-02 -5.452281E-07 -2.790522E-04 2.359911E-02 2.795988E-03 # Covariance matrix: 2.0912E-13 -1.7650E-13 -7.7957E-16 1.4937E-15 5.3082E-14 -1.4131E-12 -1.7650E-13 5.0269E-13 2.1732E-15 -5.8836E-15 8.0777E-14 5.4966E-12 -7.7957E-16 2.1732E-15 1.5725E-13 -5.3303E-14 -4.0466E-16 2.5299E-14 1.4937E-15 -5.8836E-15 -5.3303E-14 4.0769E-14 -1.3252E-15 -7.0212E-14 5.3082E-14 8.0777E-14 -4.0466E-16 -1.3252E-15 3.0699E-13 1.1690E-12 -1.4131E-12 5.4966E-12 2.5299E-14 -7.0212E-14 1.1690E-12 6.5544E-11 # lat0 lon0 xBary yBary zBary JD0 -1.265784 -7.598003 0.450377 -0.020134 -0.907018 2452140.780533 # Heliocentric elements and errors Epoch: 2452140.5000 = 2001/08/19 Mean Anomaly: 61.97678 +/- 0.030 Argument of Peri: 165.55409 +/- 0.046 Long of Asc Node: 111.77403 +/- 0.018 Inclination: 1.43024 +/- 0.000 Eccentricity: 0.11623939 +/- 0.0004 Semi-Major Axis: 45.24215769 +/- 0.0074 Time of Perihelion: 2433004.9971 +/- 7.9 Perihelion: 39.98323700 +/- 0.0178 Aphelion: 50.50107838 +/- 0.0185 Period (y) 304.3149 +/- 0.07 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 42.83469374 +/- 0.0010 Ecliptic Y -6.16173681 +/- 0.0001 Ecliptic Z -0.93610605 +/- 0.0000 Ecliptic XDOT 0.00066269 +/- 0.0000 Ecliptic YDOT 0.00258673 +/- 0.0000 Ecliptic ZDOT -0.00003932 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 43.28572840 +/- 0.0010 Geocenter to KBO 42.37447849 +/- 0.0010 # Hcoef: 6.42
The following table shows the complete astrometric record for 01QP297. 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 (01QP297) followed by the observatory code and reference code for the source of the astrometry.
2001 08 19.27979 23 34 05.66 -04 10 39.6 21.9R 01QP297 807 Cd7925 2001 08 19.36483 23 34 05.33 -04 10 41.9 01QP297 807 Cd7925 2001 08 20.31539 23 34 01.69 -04 11 06.0 01QP297 807 Cd7925 2001 08 20.40083 23 34 01.35 -04 11 08.3 01QP297 807 Cd7925 2001 08 21.31117 23 33 57.92 -04 11 31.7 22.0R 01QP297 807 Cd7925 2001 08 21.37861 23 33 57.65 -04 11 33.2 01QP297 807 Cd7925 2001 10 20.26721 23 29 53.79 -04 37 38.2 22.8R 01QP297 695 Ce0366 2001 10 20.32452 23 29 53.59 -04 37 39.5 01QP297 695 Ce0366 2002 11 07.11379 23 33 52.46 -04 12 45.7 22.8R 01QP297 695 Ci2660 2002 11 07.21339 23 33 52.21 -04 12 47.2 01QP297 695 Ci2660 2003 07 06.56076 23 45 26.56 -02 58 07.0 23.0R 01QP297 568 Ci2660 2003 07 07.54055 23 45 25.77 -02 58 14.4 01QP297 568 Ci2660 2003 07 08.54994 23 45 24.90 -02 58 22.1 01QP297 568 Ci2660 2003 07 09.53490 23 45 23.95 -02 58 30.2 01QP297 568 Ci2660 2005 08 30.69362 23 52 29.807 -02 15 32.36 22.4R 01QP297 500 2005 08 30.70034 23 52 29.777 -02 15 32.55 01QP297 500 2005 08 30.70705 23 52 29.750 -02 15 32.72 01QP297 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 0.28 0.00 0.07 2 0.0002 -5.44 0.19 -0.16 -0.04 3 0.0028 -64.99 -0.25 -0.77 0.24 4 0.0031 -70.57 -0.42 -0.87 0.18 5 0.0056 -126.95 0.34 -2.08 -0.17 6 0.0057 -131.26 0.35 -1.86 0.08 7 0.1697 -4100.46 -0.22 -0.39 0.06 8 0.1699 -4103.72 -0.31 -0.41 -0.03 9 1.2179 -231.23 0.23 -37.77 -0.10 10 1.2182 -235.26 0.05 -37.67 -0.17 11 1.8789 11094.41 -0.03 -49.93 0.13 12 1.8816 11080.57 -0.27 -52.01 -0.15 13 1.8844 11065.50 0.03 -53.88 -0.19 14 1.8871 11049.18 -0.07 -55.65 -0.17 15 4.0312 17963.64 0.07 -237.47 0.08 16 4.0313 17963.14 0.02 -237.46 0.09 17 4.0313 17962.70 0.01 -237.46 0.10
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.
01QP297 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 45.518 45.518 45.518 ecceobj 0.122 0.122 0.122 incobj 1.431 1.431 1.431 qmin 39.239 39.238 39.237 qmax 51.665 51.663 51.722 amean 45.288 45.288 45.288 amin 44.919 44.919 44.920 amax 45.711 45.711 45.711 emean 0.117 0.117 0.117 emin 0.102 0.102 0.102 emax 0.131 0.131 0.132 imean 0.913 0.913 0.913 imin 0.183 0.183 0.183 imax 1.518 1.518 1.517 fracstop 1.000 1.000 1.000 cjmean 3.100 3.100 3.100 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 166.2 166.2 166.3 kozaiamp 180.0 179.9 180.0