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: 02KW14
# Created Fri May 2 02:36:36 2008
# Orbit generated from Bernstein formalism
# Fitting 27 observations of 27
# Arc: 3.96y
# First observation: 2002/05/17
# Last observation: 2006/05/03
Preliminary a, adot, b, bdot, g, gdot:
-0.000080 0.026960 -0.000015 -0.004579 0.025299 0.000000
# Chi-squared of fit: 346.36 DOF: 48 RMS: 0.63
# Min/Max residuals: -3.15 0.81
# Exact a, adot, b, bdot, g, gdot:
1.441859E-05 2.722122E-02 -4.194277E-06 -4.635841E-03 2.594669E-02 3.643860E-03
# Covariance matrix:
2.0148E-13 -1.6526E-13 -4.2335E-15 1.4579E-14 2.1164E-13 -8.6281E-13
-1.6526E-13 3.3029E-13 1.4373E-14 -4.5356E-14 -1.0695E-13 2.6658E-12
-4.2335E-15 1.4373E-14 1.0933E-13 -4.0363E-14 2.5151E-15 1.3797E-13
1.4579E-14 -4.5356E-14 -4.0363E-14 3.4294E-14 -2.7887E-15 -4.2748E-13
2.1164E-13 -1.0695E-13 2.5151E-15 -2.7887E-15 7.4134E-13 1.3894E-13
-8.6281E-13 2.6658E-12 1.3797E-13 -4.2748E-13 1.3894E-13 2.5087E-11
# lat0 lon0 xBary yBary zBary JD0
1.409081 -128.278244 -0.081247 0.024821 -1.012502 2452411.761343
# Heliocentric elements and errors
Epoch: 2452410.5000 = 2002/05/16
Mean Anomaly: 33.86418 +/- 0.023
Argument of Peri: 121.99153 +/- 0.038
Long of Asc Node: 59.83035 +/- 0.000
Inclination: 9.77779 +/- 0.000
Eccentricity: 0.20171304 +/- 0.0002
Semi-Major Axis: 46.58272100 +/- 0.0099
Time of Perihelion: 2441486.7005 +/- 6.7
Perihelion: 37.18637895 +/- 0.0124
Aphelion: 55.97906304 +/- 0.0153
Period (y) 317.9402 +/- 0.10
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -24.43073453 +/- 0.0008
Ecliptic Y -31.08593559 +/- 0.0010
Ecliptic Z 0.94760693 +/- 0.0000
Ecliptic XDOT 0.00200106 +/- 0.0000
Ecliptic YDOT -0.00209238 +/- 0.0000
Ecliptic ZDOT -0.00047935 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 39.54863007 +/- 0.0009
Geocenter to KBO 38.54056131 +/- 0.0013
# Hcoef: 5.33
The following table shows the complete astrometric record for 02KW14. 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 (02KW14) followed by the observatory code and reference code for the source of the astrometry.
2002 05 17.26060 15 18 43.836 -16 50 03.26 02KW14 675 Cf9011 2002 05 17.33257 15 18 43.456 -16 50 02.52 02KW14 675 Cf9011 2002 05 17.39780 15 18 43.111 -16 50 00.59 02KW14 675 Cf9011 2002 05 31.17405 15 17 34.08 -16 46 19.5 21.5R 02KW14 644 Cl2692 2002 06 13.24701 15 16 34.156 -16 43 15.05 21.3R 02KW14 675 Cf9011 2002 06 13.30038 15 16 33.951 -16 43 14.69 02KW14 675 Cf9011 2002 06 13.36249 15 16 33.659 -16 43 13.58 21.5R 02KW14 675 Cf9011 2002 06 14.30061 15 16 29.683 -16 43 01.80 21.2R 02KW14 675 Cf9011 2002 06 16.22389 15 16 21.68 -16 42 38.5 21.5R 02KW14 644 Cl2692 2002 06 25.21127 15 15 47.33 -16 41 01.4 21. R 02KW14 644 Cl2692 2002 06 26.22997 15 15 43.85 -16 40 52.4 21.5R 02KW14 644 Cl2692 2003 04 25.31162 15 26 36.19 -17 35 00.5 20.5R 02KW14 675 Ci1476 2003 04 25.35647 15 26 35.98 -17 35 00.0 20.5R 02KW14 675 Ci1476 2003 05 31.18714 15 23 34.85 -17 25 27.3 20.5R 02KW14 675 Ci1476 2003 05 31.23053 15 23 34.64 -17 25 27.0 20.7R 02KW14 675 Ci1476 2003 05 31.28280 15 23 34.36 -17 25 26.2 20.5R 02KW14 675 Ci1476 2004 05 20.25174 15 30 26.56 -18 06 12.4 19.7R 02KW14 688 Ck8098 2004 05 20.32591 15 30 26.16 -18 06 10.2 02KW14 688 Ck8098 2004 05 26.18450 15 29 56.22 -18 04 40.3 20.7R 02KW14 304 Ck8672 2004 05 26.21650 15 29 56.06 -18 04 39.8 02KW14 304 Ck8672 2005 03 10.49434 15 41 02.79 -18 56 14.2 02KW14 G96 Cq1743 2005 04 11.44605 15 39 34.82 -18 52 18.6 02KW14 G96 Cq1743 2005 05 13.34219 15 37 04.19 -18 45 05.1 02KW14 G96 Cq1743 2006 05 03.41979 15 43 56.610 -19 23 28.69 22.0R 02KW14 500 2006 05 03.42418 15 43 56.583 -19 23 28.62 02KW14 500 2006 05 03.42858 15 43 56.561 -19 23 28.57 02KW14 500 2006 05 03.43298 15 43 56.539 -19 23 28.51 02KW14 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 0.45 0.00 0.28 2 0.0002 -5.46 0.50 -0.69 -0.18 3 0.0004 -10.75 0.22 -0.10 0.60 4 0.0381 -1025.49 0.62 -42.41 -0.10 5 0.0739 -1904.65 -0.11 -87.62 0.32 6 0.0740 -1907.59 0.35 -88.04 0.11 7 0.0742 -1911.93 -0.05 -88.06 0.33 8 0.0768 -1970.15 -0.12 -91.54 0.32 9 0.0820 -2087.24 -0.31 -98.97 0.11 10 0.1066 -2589.07 -1.22 -133.88 0.36 11 0.1094 -2639.70 -0.17 -138.24 0.11 12 0.9392 7232.85 0.22 -900.74 -0.35 13 0.9393 7229.82 0.39 -901.00 -0.50 14 1.0374 4575.50 -0.25 -992.83 0.21 15 1.0376 4572.51 -0.07 -993.29 -0.10 16 1.0377 4568.43 -0.34 -993.53 -0.15 17 2.0096 10888.03 0.81 -1910.86 -1.25 18 2.0098 10881.94 0.38 -1910.11 -0.27 19 2.0258 10444.81 -0.01 -1926.53 -0.35 20 2.0259 10442.47 0.05 -1926.60 -0.32 21 2.8152 20446.93 0.33 -2703.06 -1.49 22 2.9026 19166.02 -3.15 -2759.58 -0.09 23 2.9900 16968.14 -0.19 -2833.23 -0.11 24 3.9621 23248.06 0.47 -3746.10 0.63 25 3.9621 23247.66 0.40 -3746.12 0.63 26 3.9621 23247.34 0.39 -3746.14 0.62 27 3.9621 23247.02 0.39 -3746.15 0.62
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.
02KW14 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 46.345 46.346 46.345 ecceobj 0.197 0.197 0.197 incobj 9.791 9.791 9.791 qmin 36.494 36.486 36.484 qmax 57.432 57.442 57.428 amean 46.743 46.732 46.743 amin 46.324 46.301 46.325 amax 47.283 47.255 47.251 emean 0.202 0.201 0.202 emin 0.187 0.187 0.187 emax 0.217 0.217 0.217 imean 8.494 8.492 8.494 imin 7.743 7.744 7.743 imax 9.342 9.334 9.337 fracstop 1.000 1.000 1.000 cjmean 3.058 3.058 3.058 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 180.7 180.7 180.8 kozaiamp 180.0 180.0 179.9