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: 05EW318
# Created Sun Nov 24 02:08:44 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 33 observations of 33
# Arc: 19.31y
# First observation: 2002/12/14
# Last observation: 2022/04/08
# Chi-squared of fit: 56.82 DOF: 60 RMS: 0.23
# Min/Max residuals: -0.73 0.53
# Exact a, adot, b, bdot, g, gdot:
1.296326E-05 1.875327E-02 3.330980E-07 3.171994E-04 2.125576E-02 9.731722E-04
# Covariance matrix:
2.3835E-13 -3.0674E-14 6.2384E-16 -4.5371E-16 9.7531E-14 -6.6708E-14
-3.0674E-14 3.1572E-14 -1.0906E-15 5.5416E-16 3.4536E-14 8.7999E-14
6.2384E-16 -1.0906E-15 8.5343E-14 -5.9909E-15 -1.4634E-15 -3.1305E-15
-4.5371E-16 5.5416E-16 -5.9909E-15 8.5020E-16 6.1499E-16 1.5866E-15
9.7531E-14 3.4536E-14 -1.4634E-15 6.1499E-16 1.5667E-13 1.0268E-13
-6.6708E-14 8.7999E-14 -3.1305E-15 1.5866E-15 1.0268E-13 2.5210E-13
# lat0 lon0 xBary yBary zBary JD0
0.418553 152.732469 0.923918 0.002364 -0.325870 2452622.984513
# Heliocentric elements and errors
Epoch: 2452622.5000 = 2002/12/14
Mean Anomaly: 147.45617 +/- 0.030
Argument of Peri: 231.72666 +/- 0.025
Long of Asc Node: 128.58768 +/- 0.003
Inclination: 1.06249 +/- 0.000
Eccentricity: 0.06679031 +/- 0.0000
Semi-Major Axis: 44.80820508 +/- 0.0027
Time of Perihelion: 2407748.4559 +/- 9.9
Perihelion: 41.81545096 +/- 0.0032
Aphelion: 47.80095919 +/- 0.0035
Period (y) 299.9470 +/- 0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -41.68495179 +/- 0.0008
Ecliptic Y 22.52825514 +/- 0.0004
Ecliptic Z 0.34369922 +/- 0.0000
Ecliptic XDOT -0.00122505 +/- 0.0000
Ecliptic YDOT -0.00209365 +/- 0.0000
Ecliptic ZDOT 0.00004198 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 47.38431696 +/- 0.0007
Geocenter to KBO 47.04606962 +/- 0.0009
# Hcoef: 6.34
The following table shows the complete astrometric record for 05EW318. 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 (05EW318) followed by the observatory code and reference code for the source of the astrometry.
2002 12 14.483770 10 19 22.63 +10 53 26.8 05EW318 645 C~1GH2 2002 12 14.484599 10 19 22.63 +10 53 26.8 05EW318 645 C~1GH2 2002 12 14.487087 10 19 22.62 +10 53 26.8 05EW318 645 C~1GH2 2003 01 28.294752 10 17 29.26 +11 04 38.1 22.8V 05EW318 645 C~2JxC 2003 01 28.295581 10 17 29.26 +11 04 38.1 22.2V 05EW318 645 C~2JxC 2003 01 28.298069 10 17 29.25 +11 04 38.1 23.8V 05EW318 645 C~2JxC 2005 03 08.23878 10 23 08.64 +10 34 55.9 22.7R 05EW318 675 Cn3361 2005 03 08.28082 10 23 08.45 +10 34 57.1 23.1R 05EW318 675 Cn3361 2005 03 09.21648 10 23 04.66 +10 35 18.8 22.9R 05EW318 675 Cn3361 2005 03 09.25802 10 23 04.50 +10 35 19.7 22.9R 05EW318 675 Cn3361 2005 03 10.21478 10 23 00.65 +10 35 42.0 22.9R 05EW318 675 Cn3361 2005 03 10.25626 10 23 00.52 +10 35 42.9 24.1R 05EW318 675 Cn3361 2005 06 08.96747 10 20 46.15 +10 48 03.5 22.7R 05EW318 304 Cn7066 2005 06 09.03300 10 20 46.28 +10 48 02.6 05EW318 304 Cn7066 2006 03 02.37572 10 27 42.89 +10 09 42.7 22.4R 05EW318 695 Cr3594 2006 03 02.42785 10 27 42.66 +10 09 44.0 05EW318 695 Cr3594 2006 03 02.48023 10 27 42.45 +10 09 44.9 05EW318 695 Cr3594 2006 04 27.05357 10 24 46.44 +10 26 34.0 21.8R 05EW318 807 Cr3594 2006 04 28.03607 10 24 44.90 +10 26 42.2 05EW318 807 Cr3594 2006 04 28.10994 10 24 44.79 +10 26 42.9 05EW318 807 Cr3594 2006 06 21.96015 10 25 17.28 +10 23 11.0 22.9R 05EW318 304 Cr4849 2006 06 21.97752 10 25 17.32 +10 23 10.6 05EW318 304 Cr4849 2013 03 12.16888 10 55 38.52 +07 30 22.6 22.5R 05EW318 695 C~0udE 2013 03 12.23003 10 55 38.23 +07 30 23.2 05EW318 695 C~0udE 2019 02 08.455430 11 21 54.144 +04 51 40.86 23.2G 05EW318 G37 C~2zmb 2019 02 08.497420 11 21 54.006 +04 51 41.66 05EW318 G37 C~2zmb 2020 01 21.45791 11 26 45.37 +04 21 23.1 22.6y 05EW318 T09 C~7xJF 2020 01 21.47062 11 26 45.35 +04 21 23.3 22.7y 05EW318 T09 C~7xJF 2020 01 21.59135 11 26 45.06 +04 21 25.1 23.1i 05EW318 T09 C~7xJF 2020 01 21.60388 11 26 45.03 +04 21 25.3 23.1i 05EW318 T09 C~7xJF 2022 04 08.153420 11 30 03.621 +04 02 33.41 23.0G 05EW318 G37 C~5ZVd 2022 04 08.188410 11 30 03.482 +04 02 34.42 05EW318 G37 C~5ZVd 2022 04 08.223320 11 30 03.356 +04 02 35.20 05EW318 G37 C~5ZVd
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 0.19 0.00 -0.09
2 0.0000 0.00 0.20 0.00 -0.10
3 0.0000 0.00 0.09 0.00 -0.11
4 0.1227 0.00 0.23 0.00 0.02
5 0.1227 0.00 0.27 0.00 0.01
6 0.1227 0.00 0.27 0.00 -0.05
7 2.2307 0.00 -0.27 0.00 -0.25
8 2.2308 0.00 -0.52 0.00 -0.03
9 2.2334 0.00 -0.67 0.00 -0.08
10 2.2335 0.00 -0.51 0.00 -0.15
11 2.2361 0.00 -0.57 0.00 0.05
12 2.2362 0.00 0.01 0.00 -0.01
13 2.4846 0.00 -0.08 0.00 0.22
14 2.4847 0.00 0.13 0.00 0.04
15 3.2139 0.00 0.01 0.00 0.19
16 3.2141 0.00 -0.15 0.00 0.23
17 3.2142 0.00 -0.01 0.00 -0.13
18 3.3664 0.00 0.16 0.00 0.27
19 3.3691 0.00 0.04 0.00 0.03
20 3.3693 0.00 0.15 0.00 0.12
21 3.5194 0.00 0.35 0.00 0.18
22 3.5195 0.00 0.28 0.00 0.05
23 10.2414 0.00 0.53 0.00 0.20
24 10.2416 0.00 -0.06 0.00 -0.73
25 16.1532 0.00 0.02 0.00 0.06
26 16.1534 0.00 0.12 0.00 -0.08
27 17.1033 0.00 -0.28 0.00 0.15
28 17.1033 0.00 -0.12 0.00 0.15
29 17.1036 0.00 -0.10 0.00 0.02
30 17.1037 0.00 -0.10 0.00 0.02
31 19.3146 0.00 0.23 0.00 -0.20
32 19.3147 0.00 0.04 0.00 0.02
33 19.3148 0.00 0.05 0.00 0.02
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.
05EW318 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.463 44.463 44.463 ecceobj 0.075 0.075 0.075 incobj 1.063 1.063 1.063 qmin 40.318 40.265 40.306 qmax 49.122 49.109 49.068 amean 44.557 44.564 44.552 amin 44.183 44.183 44.180 amax 44.951 44.950 44.946 emean 0.075 0.076 0.074 emin 0.055 0.057 0.054 emax 0.093 0.093 0.093 imean 1.205 1.204 1.206 imin 0.489 0.484 0.489 imax 1.807 1.806 1.804 excite_mean 0.078 0.079 0.077 fracstop 1.000 1.000 1.000 cjmean 3.101 3.101 3.101 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 203.6 205.4 201.8 kozaiamp 180.0 180.0 180.0