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: 00FC8 # Created Wed Dec 25 02:08:01 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 17 observations of 17 # Arc: 15.07y # First observation: 2000/03/27 # Last observation: 2015/04/24 # Chi-squared of fit: 59.30 DOF: 28 RMS: 0.33 # Min/Max residuals: -1.22 0.58 # Exact a, adot, b, bdot, g, gdot: 1.244931E-05 1.944468E-02 2.782947E-06 -2.044082E-04 2.185789E-02 -9.854830E-05 # Covariance matrix: 2.7286E-13 -2.7256E-13 -1.9643E-15 2.8259E-15 1.2299E-13 -8.6110E-13 -2.7256E-13 5.0726E-13 3.8271E-15 -5.4397E-15 -2.5169E-13 1.6569E-12 -1.9643E-15 3.8271E-15 1.3620E-13 -1.0020E-14 -3.0808E-15 1.2601E-14 2.8259E-15 -5.4397E-15 -1.0020E-14 2.2599E-15 2.8107E-15 -1.7849E-14 1.2299E-13 -2.5169E-13 -3.0808E-15 2.8107E-15 4.8841E-13 -8.4002E-13 -8.6110E-13 1.6569E-12 1.2601E-14 -1.7849E-14 -8.4002E-13 5.4361E-12 # lat0 lon0 xBary yBary zBary JD0 -0.394574 -174.720795 -0.031744 -0.007118 -1.004482 2451630.815983 # Heliocentric elements and errors Epoch: 2451630.5000 = 2000/03/27 Mean Anomaly: 181.96928 +/- 0.100 Argument of Peri: 31.02465 +/- 0.091 Long of Asc Node: 332.57062 +/- 0.007 Inclination: 0.71359 +/- 0.000 Eccentricity: 0.06839334 +/- 0.0001 Semi-Major Axis: 43.75653263 +/- 0.0069 Time of Perihelion: 2503912.8658 +/- 31.8 Perihelion: 40.76387717 +/- 0.0088 Aphelion: 46.74918810 +/- 0.0095 Period (y) 289.4493 +/- 0.07 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -46.54555859 +/- 0.0015 Ecliptic Y -4.33052498 +/- 0.0001 Ecliptic Z -0.31492985 +/- 0.0000 Ecliptic XDOT 0.00023046 +/- 0.0000 Ecliptic YDOT -0.00241734 +/- 0.0000 Ecliptic ZDOT -0.00002540 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 46.74763934 +/- 0.0015 Geocenter to KBO 45.75010532 +/- 0.0015 # Hcoef: 7.99
The following table shows the complete astrometric record for 00FC8. 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 (00FC8) followed by the observatory code and reference code for the source of the astrometry.
2000 03 27.31524 12 18 45.41 -02 27 34.9 00FC8 568 Cb2555 2000 03 27.35824 12 18 45.25 -02 27 34.3 00FC8 568 Cb2555 2000 03 29.36495 12 18 37.02 -02 26 40.0 24.3R 00FC8 568 Cb2555 2000 03 29.40952 12 18 36.82 -02 26 38.8 24.1R 00FC8 568 Cb2555 2000 03 29.45079 12 18 36.65 -02 26 37.6 24.2R 00FC8 568 Cb2555 2000 07 27.99464 12 16 18.39 -02 11 07.1 24.8R 00FC8 309 Cb7658 2000 07 28.00019 12 16 18.42 -02 11 07.2 00FC8 309 Cb7658 2000 07 28.00575 12 16 18.44 -02 11 07.7 24.6R 00FC8 309 Cb7658 2001 02 23.27038 12 24 53.98 -03 07 51.0 24.1R 00FC8 309 Cc6643 2001 02 24.20534 12 24 50.82 -03 07 31.0 24.1R 00FC8 309 Cc6643 2001 02 24.26511 12 24 50.62 -03 07 29.9 24.0R 00FC8 309 Cc6643 2002 02 11.22202 12 29 34.72 -03 38 36.4 00FC8 304 Ce8748 2002 02 11.29006 12 29 34.52 -03 38 35.3 24.9R 00FC8 304 Ce8748 2015 03 23.35337 13 20 59.42 -09 07 36.7 24.5R 00FC8 695 C~1Q39 2015 03 23.41679 13 20 59.16 -09 07 35.2 00FC8 695 C~1Q39 2015 04 24.22235 13 18 48.85 -08 54 42.3 24.3R 00FC8 G37 C~1Re8 2015 04 24.39154 13 18 48.15 -08 54 38.1 00FC8 G37 C~1Re8
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 0.07 0.00 -0.69
2 0.0001 0.00 0.35 0.00 -1.22
3 0.0056 0.00 -0.01 0.00 0.20
4 0.0057 0.00 -0.23 0.00 0.22
5 0.0058 0.00 -0.21 0.00 0.34
6 0.3359 0.00 -0.01 0.00 0.58
7 0.3359 0.00 0.20 0.00 0.58
8 0.3359 0.00 0.25 0.00 0.19
9 0.9116 0.00 -0.11 0.00 0.19
10 0.9141 0.00 -0.16 0.00 0.22
11 0.9143 0.00 -0.05 0.00 0.03
12 1.8779 0.00 0.11 0.00 -0.32
13 1.8781 0.00 -0.13 0.00 -0.34
14 14.9871 0.00 -0.01 0.00 -0.01
15 14.9873 0.00 -0.15 0.00 0.04
16 15.0744 0.00 0.09 0.00 -0.04
17 15.0748 0.00 0.05 0.00 0.04
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.
00FC8 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.738 43.738 43.738 ecceobj 0.069 0.069 0.069 incobj 0.714 0.714 0.714 qmin 40.218 40.218 40.218 qmax 48.037 48.010 48.010 amean 44.008 44.008 44.006 amin 43.653 43.652 43.665 amax 44.371 44.370 44.375 emean 0.067 0.067 0.066 emin 0.050 0.050 0.049 emax 0.083 0.083 0.083 imean 2.179 2.179 2.179 imin 1.403 1.405 1.404 imax 2.857 2.857 2.857 excite_mean 0.077 0.077 0.077 fracstop 1.000 1.000 1.000 cjmean 3.094 3.094 3.094 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 189.0 187.5 188.5 kozaiamp 179.9 179.9 179.9