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: 03QH91
# Created Fri May 2 02:36:52 2008
# Orbit generated from Bernstein formalism
# Fitting 18 observations of 18
# Arc: 2.68y
# First observation: 2003/08/24
# Last observation: 2006/04/28
Preliminary a, adot, b, bdot, g, gdot:
0.000194 0.022068 0.000009 0.001270 0.024084 0.000000
# Chi-squared of fit: 32.92 DOF: 30 RMS: 0.24
# Min/Max residuals: -0.54 0.51
# Exact a, adot, b, bdot, g, gdot:
1.515442E-05 2.294904E-02 1.966966E-06 1.310983E-03 2.454478E-02 3.074565E-03
# Covariance matrix:
1.8557E-13 -1.4820E-13 5.5103E-16 -2.2290E-15 3.2648E-15 -9.1257E-13
-1.4820E-13 4.8694E-13 -1.9580E-15 1.8124E-14 2.0087E-13 6.3703E-12
5.5103E-16 -1.9580E-15 1.6908E-13 -8.1024E-14 5.6058E-16 -2.4858E-14
-2.2290E-15 1.8124E-14 -8.1024E-14 7.8642E-14 1.3863E-14 3.0049E-13
3.2648E-15 2.0087E-13 5.6058E-16 1.3863E-14 3.3919E-13 4.0158E-12
-9.1257E-13 6.3703E-12 -2.4858E-14 3.0049E-13 4.0158E-12 1.0245E-10
# lat0 lon0 xBary yBary zBary JD0
1.698883 -46.737991 -0.297871 0.028822 -0.970325 2452875.529113
# Heliocentric elements and errors
Epoch: 2452870.5000 = 2003/08/19
Mean Anomaly: 105.95907 +/- 0.094
Argument of Peri: 265.05275 +/- 0.082
Long of Asc Node: 286.85980 +/- 0.005
Inclination: 3.67514 +/- 0.001
Eccentricity: 0.15320282 +/- 0.0003
Semi-Major Axis: 39.26230412 +/- 0.0047
Time of Perihelion: 2426422.2006 +/- 22.9
Perihelion: 33.24720846 +/- 0.0141
Aphelion: 45.27739978 +/- 0.0145
Period (y) 246.0208 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 28.78942082 +/- 0.0007
Ecliptic Y -30.15503225 +/- 0.0007
Ecliptic Z 1.20794168 +/- 0.0000
Ecliptic XDOT 0.00209086 +/- 0.0000
Ecliptic YDOT 0.00150216 +/- 0.0000
Ecliptic ZDOT 0.00015651 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 41.70870225 +/- 0.0007
Geocenter to KBO 40.74186251 +/- 0.0010
# Hcoef: 6.65
The following table shows the complete astrometric record for 03QH91. 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 (03QH91) followed by the observatory code and reference code for the source of the astrometry.
2003 08 24.02837 21 00 54.41 -15 12 33.2 21.9R 03QH91 807 Ci4137 2003 08 25.03682 21 00 49.81 -15 12 53.0 03QH91 807 Ci4137 2003 08 25.14609 21 00 49.31 -15 12 54.9 03QH91 807 Ci4137 2003 10 01.25144 20 58 36.07 -15 22 49.7 22.9R 03QH91 568 Ci6964 2003 10 01.34012 20 58 35.83 -15 22 50.8 03QH91 568 Ci6964 2003 10 02.29552 20 58 33.66 -15 23 01.2 03QH91 568 Ci6964 2003 11 20.07602 20 58 34.53 -15 24 23.1 23.0R 03QH91 695 Cj4699 2003 11 21.07725 20 58 36.92 -15 24 14.8 03QH91 695 Cj4699 2004 05 28.23668 21 11 28.28 -14 24 19.8 22.3R 03QH91 304 Cl4360 2004 05 28.29377 21 11 28.23 -14 24 19.9 03QH91 304 Cl4360 2004 08 23.12705 21 06 01.04 -14 45 49.2 23.0R 03QH91 304 Cl4360 2004 08 23.26447 21 06 00.41 -14 45 51.6 03QH91 304 Cl4360 2005 12 01.08402 21 08 58.07 -14 30 46.8 23.2R 03QH91 695 Cp9888 2005 12 01.11349 21 08 58.17 -14 30 46.3 03QH91 695 Cp9888 2005 12 02.07363 21 09 01.19 -14 30 34.1 03QH91 695 Cp9888 2006 04 26.36832 21 21 01.81 -13 33 30.6 21.9R 03QH91 807 Cr3580 2006 04 27.35236 21 21 03.74 -13 33 18.0 03QH91 807 Cr3580 2006 04 28.36565 21 21 05.61 -13 33 05.6 03QH91 807 Cr3580
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 -0.08 0.00 -0.23 2 0.0028 -69.46 -0.10 -0.19 -0.36 3 0.0031 -76.94 0.03 0.03 -0.15 4 0.1046 -2094.27 0.51 -28.70 0.03 5 0.1049 -2097.91 0.11 -28.78 0.04 6 0.1075 -2130.95 0.25 -29.98 0.17 7 0.2411 -2141.80 -0.12 -112.13 0.00 8 0.2438 -2106.29 -0.44 -113.84 -0.02 9 0.7617 9643.02 0.04 121.47 0.41 10 0.7618 9642.30 0.35 121.59 0.35 11 0.9996 4716.77 -0.54 269.87 -0.16 12 1.0000 4707.33 -0.29 270.20 0.13 13 2.2726 7439.67 0.13 389.67 -0.22 14 2.2726 7441.21 0.30 389.73 -0.13 15 2.2753 7486.77 -0.04 388.63 0.41 16 2.6731 18563.52 -0.06 540.04 -0.22 17 2.6758 18594.41 0.09 543.52 -0.08 18 2.6785 18624.39 -0.14 547.08 0.03
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.
03QH91 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.459 39.459 39.459 ecceobj 0.148 0.148 0.148 incobj 3.669 3.669 3.669 qmin 32.696 32.696 32.697 qmax 46.889 46.895 46.884 amean 39.458 39.458 39.458 amin 38.960 38.960 38.960 amax 40.009 40.010 40.009 emean 0.153 0.153 0.153 emin 0.135 0.135 0.135 emax 0.173 0.173 0.173 imean 5.586 5.586 5.585 imin 4.553 4.554 4.553 imax 6.282 6.282 6.282 fracstop 1.000 1.000 1.000 cjmean 3.014 3.014 3.014 libcent 0 179.1 179.3 178.9 libamp 0 115.3 115.3 115.1 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 181.0 181.0 181.0 kozaiamp 180.0 180.0 180.0