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: 01DD106
# Created Fri May 2 02:36:33 2008
# Orbit generated from Bernstein formalism
# Fitting 13 observations of 13
# Arc: 4.03y
# First observation: 2001/02/28
# Last observation: 2005/03/10
Preliminary a, adot, b, bdot, g, gdot:
0.000021 0.025879 -0.000001 0.000654 0.025974 0.000000
# Chi-squared of fit: 5.86 DOF: 20 RMS: 0.12
# Min/Max residuals: -0.23 0.21
# Exact a, adot, b, bdot, g, gdot:
1.566779E-05 2.590995E-02 1.976497E-07 6.552195E-04 2.529451E-02 1.329281E-03
# Covariance matrix:
2.4421E-13 -1.4780E-13 5.2405E-16 -2.0999E-15 -1.2842E-14 -8.6464E-13
-1.4780E-13 3.7481E-12 -9.6365E-15 8.9432E-14 6.1579E-12 3.4914E-11
5.2405E-16 -9.6365E-15 2.2249E-13 -6.8417E-14 -1.4126E-14 -9.2614E-14
-2.0999E-15 8.9432E-14 -6.8417E-14 4.5052E-14 1.4757E-13 8.4373E-13
-1.2842E-14 6.1579E-12 -1.4126E-14 1.4757E-13 1.0947E-11 5.7344E-11
-8.6464E-13 3.4914E-11 -9.2614E-14 8.4373E-13 5.7344E-11 3.2965E-10
# lat0 lon0 xBary yBary zBary JD0
1.132194 160.848260 0.016059 0.019499 -0.992484 2451968.605723
# Heliocentric elements and errors
Epoch: 2451960.5000 = 2001/02/20
Mean Anomaly: 30.50014 +/- 0.341
Argument of Peri: 0.47005 +/- 0.436
Long of Asc Node: 123.54814 +/- 0.009
Inclination: 1.82352 +/- 0.000
Eccentricity: 0.09696921 +/- 0.0003
Semi-Major Axis: 44.08507349 +/- 0.0150
Time of Perihelion: 2442902.4422 +/- 101.3
Perihelion: 39.81017892 +/- 0.0180
Aphelion: 48.35996807 +/- 0.0203
Period (y) 292.7154 +/- 0.15
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -38.26738473 +/- 0.0049
Ecliptic Y 13.31290144 +/- 0.0017
Ecliptic Z 0.78114500 +/- 0.0001
Ecliptic XDOT -0.00106295 +/- 0.0000
Ecliptic YDOT -0.00259932 +/- 0.0000
Ecliptic ZDOT 0.00007394 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 40.52451439 +/- 0.0046
Geocenter to KBO 39.53426431 +/- 0.0052
# Hcoef: 6.86
The following table shows the complete astrometric record for 01DD106. 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 (01DD106) followed by the observatory code and reference code for the source of the astrometry.
2001 02 28.10498 10 51 02.45 +08 32 45.4 22.2R 01DD106 809 Cd0833 2001 02 28.19542 10 51 02.01 +08 32 48.0 01DD106 809 Cd0833 2001 02 28.24344 10 51 01.77 +08 32 49.4 01DD106 809 Cd0833 2001 02 28.28991 10 51 01.55 +08 32 51.0 01DD106 809 Cd0833 2001 03 01.13639 10 50 57.56 +08 33 15.5 01DD106 809 Cd0833 2001 03 01.27480 10 50 56.91 +08 33 19.6 01DD106 809 Cd0833 2003 04 01.21285 10 59 50.69 +07 43 27.3 23.0R 01DD106 695 Ci2123 2003 04 01.30936 10 59 50.29 +07 43 29.8 01DD106 695 Ci2123 2003 05 29.98660 10 57 49.53 +07 54 45.5 21.9R 01DD106 807 Ci2123 2003 05 31.01850 10 57 49.96 +07 54 41.7 01DD106 807 Ci2123 2005 03 09.30623 11 12 34.77 +06 28 32.5 23.3R 01DD106 695 Cn0169 2005 03 10.29578 11 12 30.19 +06 29 01.8 01DD106 695 Cn0169 2005 03 10.39728 11 12 29.72 +06 29 05.0 01DD106 695 Cn0169
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 0.11 0.00 0.04 2 0.0002 -7.03 0.05 -0.08 -0.04 3 0.0004 -10.85 -0.08 -0.13 -0.09 4 0.0005 -14.48 -0.13 0.11 0.15 5 0.0028 -78.53 -0.07 0.28 -0.10 6 0.0032 -89.01 0.12 0.41 0.04 7 2.0865 8383.39 0.03 267.57 -0.05 8 2.0868 8376.93 -0.03 267.59 0.07 9 2.2475 6458.02 0.13 201.36 -0.23 10 2.2503 6465.38 -0.13 200.30 0.20 11 4.0252 20673.62 -0.19 542.71 -0.17 12 4.0279 20598.60 0.07 542.95 -0.03 13 4.0282 20590.82 0.12 543.16 0.21
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.
01DD106 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.900 43.901 43.900 ecceobj 0.094 0.094 0.094 incobj 1.824 1.824 1.824 qmin 38.773 38.773 38.756 qmax 49.670 49.660 49.672 amean 44.076 44.076 44.076 amin 43.719 43.723 43.715 amax 44.459 44.476 44.464 emean 0.100 0.100 0.100 emin 0.082 0.082 0.082 emax 0.118 0.118 0.118 imean 1.273 1.273 1.273 imin 0.316 0.316 0.316 imax 2.006 2.007 2.006 fracstop 1.000 1.000 1.000 cjmean 3.089 3.089 3.089 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 181.8 181.9 181.9 kozaiamp 179.9 180.0 180.0