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: 03FD128
# Created Fri May 2 02:36:51 2008
# Orbit generated from Bernstein formalism
# Fitting 12 observations of 12
# Arc: 2.90y
# First observation: 2003/03/31
# Last observation: 2006/02/23
Preliminary a, adot, b, bdot, g, gdot:
0.000019 0.028278 -0.000005 0.002517 0.027019 0.000000
# Chi-squared of fit: 30.81 DOF: 18 RMS: 0.28
# Min/Max residuals: -0.58 0.53
# Exact a, adot, b, bdot, g, gdot:
1.521913E-05 2.809652E-02 -1.118782E-06 2.505042E-03 2.727050E-02 -1.901457E-05
# Covariance matrix:
4.1164E-13 -1.1631E-12 1.4860E-14 -7.1078E-14 4.5581E-13 -9.3579E-12
-1.1631E-12 5.7293E-12 -7.3450E-14 3.8400E-13 -1.5843E-12 5.1035E-11
1.4860E-14 -7.3450E-14 1.7950E-13 -8.3744E-14 2.5001E-14 -6.5332E-13
-7.1078E-14 3.8400E-13 -8.3744E-14 1.3994E-13 -8.9022E-14 3.5534E-12
4.5581E-13 -1.5843E-12 2.5001E-14 -8.9022E-14 1.3922E-12 -1.1273E-11
-9.3579E-12 5.1035E-11 -6.5332E-13 3.5534E-12 -1.1273E-11 4.7410E-10
# lat0 lon0 xBary yBary zBary JD0
1.577892 165.334135 -0.422696 0.024876 -0.903513 2452729.804073
# Heliocentric elements and errors
Epoch: 2452720.5000 = 2003/03/22
Mean Anomaly: 27.12790 +/- 1.239
Argument of Peri: 348.35897 +/- 1.318
Long of Asc Node: 149.11859 +/- 0.002
Inclination: 5.29622 +/- 0.001
Eccentricity: 0.02595669 +/- 0.0006
Semi-Major Axis: 38.46113883 +/- 0.0121
Time of Perihelion: 2446155.3392 +/- 299.8
Perihelion: 37.46281479 +/- 0.0251
Aphelion: 39.45946288 +/- 0.0254
Period (y) 238.5291 +/- 0.11
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -36.44500341 +/- 0.0015
Ecliptic Y 9.10433054 +/- 0.0004
Ecliptic Z 1.00971844 +/- 0.0000
Ecliptic XDOT -0.00071199 +/- 0.0000
Ecliptic YDOT -0.00273587 +/- 0.0000
Ecliptic ZDOT 0.00025154 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 37.57853962 +/- 0.0015
Geocenter to KBO 36.66966645 +/- 0.0016
# Hcoef: 7.26
The following table shows the complete astrometric record for 03FD128. 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 (03FD128) followed by the observatory code and reference code for the source of the astrometry.
2003 03 31.30333 11 08 27.19 +07 14 05.2 22.7R 03FD128 695 Ch8428 2003 03 31.41504 11 08 26.65 +07 14 08.4 03FD128 695 Ch8428 2003 04 01.24512 11 08 22.97 +07 14 31.8 03FD128 695 Ch8428 2003 04 20.99538 11 07 05.87 +07 22 32.0 21.5R 03FD128 304 Ch8428 2003 04 21.05537 11 07 05.67 +07 22 33.3 03FD128 304 Ch8428 2003 05 31.32412 11 06 03.91 +07 28 19.1 23.1R 03FD128 568 Ci1570 2003 06 01.30980 11 06 04.30 +07 28 15.5 03FD128 568 Ci1570 2003 06 02.27772 11 06 04.78 +07 28 11.3 03FD128 568 Ci1570 2004 02 22.37938 11 17 41.82 +06 24 19.7 23.3R 03FD128 695 Cq7030 2004 02 22.42094 11 17 41.59 +06 24 21.0 03FD128 695 Cq7030 2006 02 23.28322 11 29 57.91 +05 24 27.5 22.9R 03FD128 304 Cq7030 2006 02 23.30282 11 29 57.82 +05 24 27.9 03FD128 304 Cq7030
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 0.22 0.00 0.53 2 0.0003 -8.65 -0.21 -0.17 0.38 3 0.0026 -68.20 0.14 0.16 0.36 4 0.0567 -1311.77 -0.13 -1.72 -0.12 5 0.0568 -1315.02 -0.17 -1.67 -0.02 6 0.1671 -2295.98 0.10 -38.27 -0.58 7 0.1698 -2289.23 0.03 -39.35 -0.53 8 0.1724 -2281.03 0.04 -40.46 -0.54 9 0.8982 8775.96 0.16 474.29 0.39 10 0.8983 8772.29 -0.20 474.14 0.17 11 2.9021 20345.07 -0.07 1516.41 0.06 12 2.9021 20343.66 0.08 1516.25 -0.14
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.
03FD128 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 38.124 38.124 38.124 ecceobj 0.019 0.019 0.019 incobj 5.314 5.314 5.314 qmin 36.580 36.582 36.578 qmax 40.121 40.127 40.126 amean 38.283 38.283 38.283 amin 38.005 37.998 38.005 amax 38.564 38.565 38.562 emean 0.020 0.020 0.020 emin 0.000 0.000 0.000 emax 0.041 0.041 0.041 imean 3.327 3.327 3.327 imin 1.722 1.722 1.722 imax 4.798 4.798 4.798 fracstop 1.000 1.000 1.000 cjmean 3.037 3.037 3.037 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 175.4 175.6 175.6 kozaiamp 180.0 180.0 180.0