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: 04UW10 # Created Wed Nov 27 02:08:40 2024 # Orbit generated from Bernstein formalism # Fitting 6 observations of 6 # Arc: 58.14d # First observation: 2004/10/17 # Last observation: 2004/12/14 Preliminary a, adot, b, bdot, g, gdot: -0.000000 0.053517 -0.000000 0.003206 0.036159 0.000000 # WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution # WARNING Fitting with energy constraint # Chi-squared of fit: 13.13 DOF: 7 RMS: 0.26 # Min/Max residuals: -0.62 0.45 # Exact a, adot, b, bdot, g, gdot: 2.073926E-05 4.604346E-02 1.211128E-06 3.427378E-03 3.510626E-02 -7.423821E-03 # Covariance matrix: 7.0759E-13 4.8951E-10 -4.7067E-15 -1.4248E-11 7.1227E-11 -7.6644E-09 4.8951E-10 1.1184E-06 -1.0993E-11 -3.3638E-08 1.5396E-07 -1.9332E-05 -4.7067E-15 -1.0993E-11 4.8765E-13 -2.7619E-12 -1.3620E-12 2.2786E-10 -1.4248E-11 -3.3638E-08 -2.7619E-12 1.1587E-09 -3.9962E-09 7.4010E-07 7.1227E-11 1.5396E-07 -1.3620E-12 -3.9962E-09 2.4993E-08 -1.7125E-06 -7.6644E-09 -1.9332E-05 2.2786E-10 7.4010E-07 -1.7125E-06 5.7133E-04 # lat0 lon0 xBary yBary zBary JD0 -1.480054 17.089167 -0.119121 -0.025523 -0.992602 2453295.674393 # Heliocentric elements and errors Epoch: 2453290.5000 = 2004/10/12 Mean Anomaly: 343.71991 +/- 34.294 Argument of Peri: 16.64607 +/- 84.631 Long of Asc Node: 35.78791 +/- 0.503 Inclination: 4.50842 +/- 0.118 Eccentricity: 0.35294970 +/- 0.4215 Semi-Major Axis: 43.38307330 +/- 16.1297 Time of Perihelion: 2458010.4051 +/- 9587.6 Perihelion: 28.07103065 +/- 21.0529 Aphelion: 58.69511594 +/- 28.4698 Period (y) 285.7516 +/- 159.36 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 28.12790564 +/- 0.1226 Ecliptic Y 8.77483725 +/- 0.0377 Ecliptic Z -0.73572885 +/- 0.0033 Ecliptic XDOT -0.00160322 +/- 0.0018 Ecliptic YDOT 0.00325709 +/- 0.0005 Ecliptic ZDOT 0.00028225 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 29.47402486 +/- 0.1175 Geocenter to KBO 28.48494754 +/- 0.1283 # Hcoef: 10.53
The following table shows the complete astrometric record for 04UW10. 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 (04UW10) followed by the observatory code and reference code for the source of the astrometry.
2004 10 17.17365 01 05 17.02 +05 20 42.3 04UW10 304 Co7494 2004 10 17.21834 01 05 16.74 +05 20 40.6 04UW10 304 Co7494 2004 10 17.26304 01 05 16.47 +05 20 39.1 04UW10 304 Co7494 2004 12 12.31346 01 01 06.10 +04 58 33.6 25. R 04UW10 568 Co7494 2004 12 13.32341 01 01 04.28 +04 58 28.6 04UW10 568 Co7494 2004 12 14.31742 01 01 02.71 +04 58 23.6 04UW10 568 Co7494
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 -0.00 0.00 0.07
2 0.0001 -4.51 -0.07 0.03 -0.04
3 0.0002 -8.81 0.07 0.18 -0.02
4 0.1537 -3972.17 0.17 206.79 -0.62
5 0.1565 -3999.22 -0.33 212.61 0.45
6 0.1592 -4022.81 0.16 216.98 0.16
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.
04UW10 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