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: 04PW107
# Created Fri May 2 02:36:55 2008
# Orbit generated from Bernstein formalism
# Fitting 19 observations of 19
# Arc: 3.24y
# First observation: 2004/08/13
# Last observation: 2007/11/11
Preliminary a, adot, b, bdot, g, gdot:
0.000059 0.027894 0.000001 -0.001179 0.026299 0.000000
# Chi-squared of fit: 260.31 DOF: 32 RMS: 0.65
# Min/Max residuals: -2.38 1.20
# Exact a, adot, b, bdot, g, gdot:
1.807471E-05 2.795241E-02 3.082282E-07 -1.181419E-03 2.635707E-02 -1.708023E-03
# Covariance matrix:
2.0288E-13 -1.5628E-13 -1.6780E-15 6.8628E-15 6.9719E-14 -1.8642E-12
-1.5628E-13 8.3345E-13 1.3402E-14 -5.0176E-14 2.0085E-13 1.3988E-11
-1.6780E-15 1.3402E-14 1.5466E-13 -7.0883E-14 3.0780E-15 2.4487E-13
6.8628E-15 -5.0176E-14 -7.0883E-14 6.6952E-14 -1.0143E-14 -9.2119E-13
6.9719E-14 2.0085E-13 3.0780E-15 -1.0143E-14 2.7174E-13 2.9441E-12
-1.8642E-12 1.3988E-11 2.4487E-13 -9.2119E-13 2.9441E-12 2.5643E-10
# lat0 lon0 xBary yBary zBary JD0
1.516487 -12.749536 0.450631 0.024242 -0.911532 2453230.849383
# Heliocentric elements and errors
Epoch: 2453230.5000 = 2004/08/13
Mean Anomaly: 330.21089 +/- 0.171
Argument of Peri: 186.74972 +/- 0.236
Long of Asc Node: 198.13129 +/- 0.005
Inclination: 2.82914 +/- 0.000
Eccentricity: 0.12951959 +/- 0.0003
Semi-Major Axis: 43.52807030 +/- 0.0040
Time of Perihelion: 2461910.2565 +/- 49.7
Perihelion: 37.89033236 +/- 0.0155
Aphelion: 49.16580825 +/- 0.0158
Period (y) 287.1854 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 37.77802999 +/- 0.0007
Ecliptic Y -9.00892086 +/- 0.0002
Ecliptic Z 1.00407140 +/- 0.0000
Ecliptic XDOT 0.00046903 +/- 0.0000
Ecliptic YDOT 0.00286340 +/- 0.0000
Ecliptic ZDOT -0.00012726 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 38.85033288 +/- 0.0007
Geocenter to KBO 37.94048584 +/- 0.0008
# Hcoef: 6.50
The following table shows the complete astrometric record for 04PW107. 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 (04PW107) followed by the observatory code and reference code for the source of the astrometry.
2004 08 13.34864 23 10 43.29 -03 38 21.2 21.3R 04PW107 807 Cl2777 2004 08 14.25534 23 10 39.51 -03 38 44.5 04PW107 807 Cl2777 2004 08 14.36476 23 10 39.05 -03 38 47.4 04PW107 807 Cl2777 2004 09 11.25912 23 08 31.30 -03 52 18.7 22.0R 04PW107 304 Cl4404 2004 09 11.28127 23 08 31.20 -03 52 19.3 04PW107 304 Cl4404 2004 10 12.15461 23 06 15.97 -04 07 19.2 22.2R 04PW107 695 Cl8416 2004 10 12.26530 23 06 15.50 -04 07 22.0 04PW107 695 Cl8416 2004 11 10.21786 23 04 56.11 -04 16 57.2 22.0R 04PW107 695 Cl9851 2004 11 11.18806 23 04 54.65 -04 17 09.4 04PW107 695 Cl9851 2005 08 08.14718 23 17 05.66 -03 02 26.9 21.9R 04PW107 807 Co3996 2005 08 08.27532 23 17 05.17 -03 02 30.0 04PW107 807 Co3996 2005 08 09.15191 23 17 01.79 -03 02 51.0 04PW107 807 Co3996 2006 07 28.34233 23 23 44.48 -02 24 42.6 22.2R 04PW107 304 Cr5543 2006 07 28.41742 23 23 44.19 -02 24 44.2 04PW107 304 Cr5543 2006 10 19.19016 23 17 53.05 -03 02 58.8 22.2R 04PW107 695 Ct0488 2006 10 20.18151 23 17 49.70 -03 03 19.7 04PW107 695 Ct0488 2006 10 20.28430 23 17 49.30 -03 03 22.5 04PW107 695 Ct0488 2007 11 11.08833 23 22 50.45 -02 36 47.2 22.8R 04PW107 688 Cw6855 2007 11 11.16291 23 22 50.29 -02 36 48.3 04PW107 688 Cw6855
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 -0.27 0.00 -0.21 2 0.0025 -61.19 -0.17 0.53 0.02 3 0.0028 -68.66 -0.07 0.53 -0.07 4 0.0792 -2145.86 -0.55 -4.27 0.58 5 0.0792 -2147.47 -0.43 -4.24 0.62 6 0.1637 -4362.19 0.80 -48.86 -0.43 7 0.1640 -4369.76 0.21 -48.72 -0.12 8 0.2433 -5688.28 -0.03 -119.02 0.03 9 0.2460 -5713.16 0.22 -121.81 -0.03 10 0.9851 6114.48 0.21 -246.24 0.13 11 0.9854 6106.51 0.30 -246.23 0.02 12 0.9878 6051.65 -0.02 -245.81 0.04 13 1.9548 12513.19 0.63 -498.50 0.11 14 1.9550 12508.55 -0.24 -498.27 0.24 15 2.1816 6756.20 -2.38 -552.86 -2.27 16 2.1843 6701.79 1.20 -552.51 0.17 17 2.1846 6695.17 0.65 -552.75 0.10 18 3.2436 11481.03 0.00 -848.82 0.50 19 3.2438 11478.38 -0.07 -848.89 0.58
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.
04PW107 quality flag:3 Type: 7:4EEE 7:4EEE 7:4EEE axisobj 44.037 44.037 44.037 ecceobj 0.139 0.139 0.139 incobj 2.817 2.817 2.817 qmin 37.315 37.344 37.308 qmax 50.593 50.606 50.593 amean 43.726 43.726 43.726 amin 43.291 43.274 43.289 amax 44.214 44.221 44.213 emean 0.132 0.131 0.132 emin 0.118 0.116 0.119 emax 0.145 0.145 0.145 imean 4.331 4.329 4.309 imin 3.223 3.218 3.209 imax 5.138 5.127 5.115 fracstop 1.000 1.000 1.000 cjmean 3.070 3.070 3.070 libcent 0 182.2 184.1 177.8 libamp 0 153.7 158.2 149.6 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 189.3 186.7 184.8 kozaiamp 180.0 180.0 180.0