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: 04UD10 # Created Fri Apr 19 01:12:10 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 23 observations of 23 # Arc: 14.07y # First observation: 2004/10/18 # Last observation: 2018/11/14 # Chi-squared of fit: 20.62 DOF: 40 RMS: 0.17 # Min/Max residuals: -0.34 0.36 # Exact a, adot, b, bdot, g, gdot: 1.541691E-05 2.152344E-02 1.249391E-06 1.307903E-03 2.314265E-02 6.526723E-04 # Covariance matrix: 3.7628E-13 -1.1896E-13 5.3012E-15 -6.0798E-15 4.2170E-13 -3.4835E-13 -1.1896E-13 7.1819E-14 -3.5553E-15 4.1197E-15 -1.2023E-13 2.3629E-13 5.3012E-15 -3.5553E-15 1.1198E-13 -1.0641E-14 5.5446E-15 -1.2121E-14 -6.0798E-15 4.1197E-15 -1.0641E-14 2.4636E-15 -6.2700E-15 1.4059E-14 4.2170E-13 -1.2023E-13 5.5446E-15 -6.2700E-15 7.8369E-13 -3.5872E-13 -3.4835E-13 2.3629E-13 -1.2121E-14 1.4059E-14 -3.5872E-13 8.0645E-13 # lat0 lon0 xBary yBary zBary JD0 -0.407694 48.701535 0.399835 -0.006428 -0.916192 2453296.879543 # Heliocentric elements and errors Epoch: 2453296.5000 = 2004/10/18 Mean Anomaly: 148.07001 +/- 0.150 Argument of Peri: 203.23121 +/- 0.139 Long of Asc Node: 54.72509 +/- 0.000 Inclination: 3.50179 +/- 0.000 Eccentricity: 0.03684437 +/- 0.0001 Semi-Major Axis: 42.77305090 +/- 0.0068 Time of Perihelion: 2411270.4679 +/- 43.6 Perihelion: 41.19710497 +/- 0.0077 Aphelion: 44.34899683 +/- 0.0082 Period (y) 279.7458 +/- 0.07 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 29.41760794 +/- 0.0011 Ecliptic Y 32.88799482 +/- 0.0012 Ecliptic Z -0.30740452 +/- 0.0000 Ecliptic XDOT -0.00186269 +/- 0.0000 Ecliptic YDOT 0.00173220 +/- 0.0000 Ecliptic ZDOT 0.00015427 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 44.12606146 +/- 0.0012 Geocenter to KBO 43.21028551 +/- 0.0017 # Hcoef: 6.67
The following table shows the complete astrometric record for 04UD10. 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 (04UD10) followed by the observatory code and reference code for the source of the astrometry.
2004 10 18.37880 03 05 26.77 +16 59 46.0 22.5R 04UD10 695 Cm0615 2004 10 18.44854 03 05 26.48 +16 59 45.0 04UD10 695 Cm0615 2004 11 09.23799 03 03 46.27 +16 53 06.8 22.1R 04UD10 695 Cm0615 2004 11 09.33027 03 03 45.84 +16 53 05.3 04UD10 695 Cm0615 2004 11 10.31259 03 03 41.16 +16 52 46.5 04UD10 695 Cm0615 2004 12 11.23579 03 01 22.64 +16 43 39.7 23.1R 04UD10 688 Cm1768 2004 12 11.30075 03 01 22.41 +16 43 38.3 04UD10 688 Cm1768 2005 11 02.29049 03 09 12.97 +17 19 52.7 22.5R 04UD10 695 Cp9905 2005 11 02.35097 03 09 12.68 +17 19 51.6 04UD10 695 Cp9905 2005 11 02.40350 03 09 12.42 +17 19 50.6 04UD10 695 Cp9905 2005 12 02.20953 03 06 52.76 +17 10 51.6 22.5R 04UD10 695 Cp9905 2005 12 02.26218 03 06 52.53 +17 10 50.5 04UD10 695 Cp9905 2005 12 02.31468 03 06 52.28 +17 10 49.8 04UD10 695 Cp9905 2007 11 09.26335 03 18 30.24 +18 05 35.0 04UD10 695 Cy4017 2007 11 09.34902 03 18 29.82 +18 05 33.6 04UD10 695 Cy4017 2014 09 26.36493 03 56 10.61 +20 44 10.3 23.6R 04UD10 695 C~1LJN 2014 09 26.41029 03 56 10.51 +20 44 10.1 04UD10 695 C~1LJN 2014 09 26.45485 03 56 10.41 +20 44 10.0 04UD10 695 C~1LJN 2014 10 22.35632 03 54 47.20 +20 40 32.7 22.9R 04UD10 G37 C~1BxG 2014 10 22.44942 03 54 46.83 +20 40 31.7 04UD10 G37 C~1BxG 2018 11 14.348480 04 13 22.77 +21 50 01.9 23.0G 04UD10 705 C~2r9o 2018 11 14.390820 04 13 22.56 +21 50 01.7 23.0G 04UD10 705 C~2r9o 2018 11 14.456670 04 13 22.22 +21 50 00.8 22.9G 04UD10 705 C~2r9o
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 -0.13 0.00 -0.11
2 0.0002 0.00 0.10 0.00 0.09
3 0.0598 0.00 -0.01 0.00 -0.07
4 0.0601 0.00 0.24 0.00 0.17
5 0.0628 0.00 0.20 0.00 -0.05
6 0.1475 0.00 -0.29 0.00 0.06
7 0.1476 0.00 0.15 0.00 -0.34
8 1.0401 0.00 -0.04 0.00 0.00
9 1.0403 0.00 -0.06 0.00 0.00
10 1.0405 0.00 -0.20 0.00 -0.04
11 1.1221 0.00 -0.10 0.00 0.27
12 1.1222 0.00 -0.01 0.00 0.06
13 1.1223 0.00 -0.24 0.00 0.26
14 3.0579 0.00 0.36 0.00 -0.29
15 3.0581 0.00 0.32 0.00 -0.19
16 9.9384 0.00 -0.16 0.00 0.02
17 9.9385 0.00 -0.09 0.00 0.06
18 9.9386 0.00 -0.05 0.00 0.20
19 10.0095 0.00 -0.18 0.00 0.06
20 10.0098 0.00 0.05 0.00 0.09
21 14.0725 0.00 0.17 0.00 -0.22
22 14.0726 0.00 0.15 0.00 0.06
23 14.0728 0.00 -0.09 0.00 -0.08
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.
04UD10 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.204 43.204 43.204 ecceobj 0.031 0.031 0.031 incobj 3.486 3.486 3.486 qmin 40.835 40.835 40.835 qmax 45.160 45.160 45.160 amean 42.902 42.901 42.901 amin 42.570 42.570 42.569 amax 43.238 43.237 43.240 emean 0.026 0.026 0.026 emin 0.005 0.005 0.005 emax 0.045 0.045 0.045 imean 1.869 1.869 1.869 imin 0.865 0.865 0.865 imax 2.843 2.843 2.843 excite_mean 0.042 0.042 0.042 fracstop 1.000 1.000 1.000 cjmean 3.086 3.086 3.086 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 205.2 205.2 205.2 kozaiamp 180.0 180.0 180.0