The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory. Take special note that while the original Bernstein software works with barycentric coordinates, we convert these results into a heliocentric coordinate system.
# Object: 00YY1 # Created Wed Nov 27 02:08:08 2024 # Orbit generated from Bernstein formalism # Fitting 10 observations of 10 # Arc: 0.99y # First observation: 2000/12/17 # Last observation: 2001/12/13 Preliminary a, adot, b, bdot, g, gdot: -0.000003 0.022315 -0.000002 -0.002794 0.023042 0.000000 # Chi-squared of fit: 21.22 DOF: 14 RMS: 0.26 # Min/Max residuals: -0.37 0.79 # Exact a, adot, b, bdot, g, gdot: 1.300253E-05 2.201027E-02 -5.730493E-06 -2.765814E-03 2.314600E-02 -1.158651E-02 # Covariance matrix: 3.1598E-13 5.5719E-12 9.1034E-15 -6.8211E-13 3.7251E-12 2.6043E-10 5.5719E-12 1.5323E-09 2.3555E-12 -1.7806E-10 9.8452E-10 6.7968E-08 9.1034E-15 2.3555E-12 2.9346E-13 -5.9195E-13 1.5134E-12 1.0452E-10 -6.8211E-13 -1.7806E-10 -5.9195E-13 2.1406E-11 -1.1451E-10 -7.9028E-09 3.7251E-12 9.8452E-10 1.5134E-12 -1.1451E-10 6.3395E-10 4.3708E-08 2.6043E-10 6.7968E-08 1.0452E-10 -7.9028E-09 4.3708E-08 3.0166E-06 # lat0 lon0 xBary yBary zBary JD0 -3.577074 55.387048 -0.494222 -0.052884 -0.843240 2451895.612083 # Heliocentric elements and errors Epoch: 2451890.5000 = 2000/12/12 Mean Anomaly: 330.61066 +/- 5.712 Argument of Peri: 291.91034 +/- 0.609 Long of Asc Node: 209.60712 +/- 0.036 Inclination: 7.84383 +/- 0.010 Eccentricity: 0.53112010 +/- 0.0821 Semi-Major Axis: 64.05451765 +/- 7.9380 Time of Perihelion: 2467177.0849 +/- 867.8 Perihelion: 30.03387577 +/- 6.4420 Aphelion: 98.07515953 +/- 13.2426 Period (y) 512.6640 +/- 95.30 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 24.57081845 +/- 0.0266 Ecliptic Y 36.46923519 +/- 0.0386 Ecliptic Z -2.69578419 +/- 0.0029 Ecliptic XDOT -0.00293932 +/- 0.0001 Ecliptic YDOT 0.00034047 +/- 0.0002 Ecliptic ZDOT -0.00024083 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 44.05675302 +/- 0.0352 Geocenter to KBO 43.20401503 +/- 0.0470 # Hcoef: 6.93
The following table shows the complete astrometric record for 00YY1. 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 (00YY1) followed by the observatory code and reference code for the source of the astrometry.
2000 12 17.11134 03 35 44.38 +15 38 02.8 23.9R 00YY1 695 Cc4111 2000 12 17.16298 03 35 44.13 +15 38 01.2 23.2R 00YY1 695 Cc4111 2000 12 17.21014 03 35 43.95 +15 38 00.4 22.4R 00YY1 695 Cc4111 2000 12 18.14588 03 35 40.23 +15 37 48.5 00YY1 695 Cc4111 2000 12 18.22969 03 35 39.90 +15 37 47.3 00YY1 695 Cc4111 2001 09 21.42811 03 46 54.68 +16 09 53.8 00YY1 675 Ce3555 2001 09 21.49642 03 46 54.54 +16 09 53.4 22.4R 00YY1 675 Ce3555 2001 12 12.91950 03 41 22.82 +15 47 26.5 23.3R 00YY1 950 Ce3555 2001 12 12.96861 03 41 22.60 +15 47 25.7 00YY1 950 Ce3555 2001 12 13.00832 03 41 22.43 +15 47 25.3 00YY1 950 Ce3555
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 0.42 0.00 0.79
2 0.0001 -3.89 -0.35 -0.71 0.01
3 0.0003 -6.60 -0.21 -0.88 -0.22
4 0.0028 -61.63 0.02 0.17 -0.20
5 0.0031 -66.54 0.11 0.12 -0.37
6 0.7620 9858.20 -0.02 -346.04 -0.24
7 0.7622 9856.14 0.03 -345.99 0.21
8 0.9878 4885.63 0.01 -582.51 0.04
9 0.9880 4882.35 -0.06 -582.57 -0.07
10 0.9881 4879.87 0.05 -582.40 0.06
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.
00YY1 quality flag:0 Type: ERR2LARGE ERR2LARGE ERR2LARGE axisobj 0.000 0.000 0.000 ecceobj -1.000 -1.000 -1.000 incobj -1.000 -1.000 -1.000 qmin 0.000 0.000 0.000 qmax 0.000 0.000 0.000 amean 0.000 0.000 0.000 amin 0.000 0.000 0.000 amax 0.000 0.000 0.000 emean 0.000 0.000 0.000 emin 0.000 0.000 0.000 emax 0.000 0.000 0.000 imean 0.000 0.000 0.000 imin 0.000 0.000 0.000 imax 0.000 0.000 0.000 excite_mean 0.000 0.000 0.000 fracstop 0.000 0.000 0.000 cjmean 0.000 0.000 0.000 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 0.0 0.0 0.0 kozaiamp 0.0 0.0 0.0