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: 01KW76
# Created Fri May 2 02:36:34 2008
# Orbit generated from Bernstein formalism
# Fitting 14 observations of 14
# Arc: 3.90y
# First observation: 2001/05/22
# Last observation: 2005/04/14
Preliminary a, adot, b, bdot, g, gdot:
0.000389 0.026127 0.000035 -0.004836 0.026011 0.000000
# Chi-squared of fit: 18.97 DOF: 22 RMS: 0.21
# Min/Max residuals: -0.43 0.39
# Exact a, adot, b, bdot, g, gdot:
1.702717E-05 2.584180E-02 -3.271964E-06 -4.757177E-03 2.544667E-02 -4.804972E-03
# Covariance matrix:
5.3088E-13 3.4528E-13 1.6770E-14 -9.6766E-14 7.6665E-13 5.0766E-12
3.4528E-13 1.1960E-12 3.8578E-14 -2.4146E-13 1.2737E-12 1.2725E-11
1.6770E-14 3.8578E-14 2.2780E-13 -7.0981E-14 4.8659E-14 4.3421E-13
-9.6766E-14 -2.4146E-13 -7.0981E-14 8.3253E-14 -2.8830E-13 -2.6864E-12
7.6665E-13 1.2737E-12 4.8659E-14 -2.8830E-13 2.0290E-12 1.5148E-11
5.0766E-12 1.2725E-11 4.3421E-13 -2.6864E-12 1.5148E-11 1.4149E-10
# lat0 lon0 xBary yBary zBary JD0
0.786219 -122.415758 -0.062930 0.013824 -1.016709 2452051.694693
# Heliocentric elements and errors
Epoch: 2452050.5000 = 2001/05/21
Mean Anomaly: 313.95233 +/- 0.029
Argument of Peri: 242.81310 +/- 0.042
Long of Asc Node: 61.81828 +/- 0.000
Inclination: 10.48767 +/- 0.000
Eccentricity: 0.21269707 +/- 0.0005
Semi-Major Axis: 45.72297826 +/- 0.0167
Time of Perihelion: 2466495.0951 +/- 4.4
Perihelion: 35.99783490 +/- 0.0265
Aphelion: 55.44812163 +/- 0.0306
Period (y) 309.1790 +/- 0.17
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -21.55190817 +/- 0.0012
Ecliptic Y -34.05847270 +/- 0.0018
Ecliptic Z 0.53910392 +/- 0.0000
Ecliptic XDOT 0.00261206 +/- 0.0000
Ecliptic YDOT -0.00105769 +/- 0.0000
Ecliptic ZDOT -0.00051868 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 40.30824905 +/- 0.0017
Geocenter to KBO 39.29786625 +/- 0.0022
# Hcoef: 7.24
The following table shows the complete astrometric record for 01KW76. 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 (01KW76) followed by the observatory code and reference code for the source of the astrometry.
2001 05 22.19395 15 42 00.07 -18 51 18.1 23.0R 01KW76 807 Cd1817 2001 05 22.27331 15 41 59.67 -18 51 17.1 01KW76 807 Cd1817 2001 06 10.01799 15 40 26.18 -18 47 05.2 22.5R 01KW76 304 Cd1817 2001 06 10.09275 15 40 25.82 -18 47 04.1 01KW76 304 Cd1817 2001 08 19.01261 15 37 48.36 -18 42 30.6 22.5R 01KW76 807 Ch1324 2001 08 20.00889 15 37 49.28 -18 42 37.3 01KW76 807 Ch1324 2001 08 21.01634 15 37 50.39 -18 42 45.2 01KW76 807 Ch1324 2004 07 16.09908 15 55 51.42 -20 28 02.8 22.2R 01KW76 807 Cn3087 2004 07 16.19933 15 55 51.17 -20 28 02.3 01KW76 807 Cn3087 2005 04 10.40906 16 09 24.04 -21 18 22.5 23.8R 01KW76 695 Cn3087 2005 04 10.47197 16 09 23.83 -21 18 22.5 01KW76 695 Cn3087 2005 04 11.46255 16 09 20.27 -21 18 15.8 01KW76 695 Cn3087 2005 04 14.33991 16 09 09.58 -21 17 56.5 23.7R 01KW76 304 Cn3253 2005 04 14.36388 16 09 09.45 -21 17 56.1 01KW76 304 Cn3253
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 -0.20 0.00 0.07 2 0.0002 -5.76 0.05 -0.31 -0.01 3 0.0515 -1355.72 0.13 -55.47 -0.18 4 0.0517 -1360.95 0.06 -55.56 0.00 5 0.2432 -3601.02 0.39 -302.16 0.06 6 0.2459 -3586.75 -0.43 -305.66 0.23 7 0.2487 -3569.58 0.00 -309.70 -0.09 8 3.1510 12734.78 -0.24 -3141.33 -0.16 9 3.1513 12731.23 0.23 -3141.56 -0.13 10 3.8856 24594.93 0.00 -3890.51 0.00 11 3.8858 24592.01 0.32 -3891.06 -0.34 12 3.8885 24541.16 -0.06 -3893.65 0.13 13 3.8964 24388.64 0.15 -3902.26 0.15 14 3.8964 24386.76 -0.40 -3902.20 0.29
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.
01KW76 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 45.754 45.754 45.754 ecceobj 0.215 0.215 0.215 incobj 10.489 10.489 10.489 qmin 35.575 35.578 35.572 qmax 57.067 57.054 57.080 amean 46.069 46.073 46.092 amin 45.642 45.659 45.683 amax 46.561 46.574 46.617 emean 0.207 0.208 0.208 emin 0.189 0.191 0.193 emax 0.226 0.226 0.226 imean 8.818 8.816 8.849 imin 7.972 7.980 8.019 imax 9.703 9.707 9.730 fracstop 1.000 1.000 1.000 cjmean 3.045 3.044 3.044 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 180.2 180.0 179.6 kozaiamp 180.0 180.0 180.0