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: 05CE81
# Created Wed Dec 25 02:08:42 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 23 observations of 23
# Arc: 16.01y
# First observation: 2005/02/10
# Last observation: 2021/02/15
# Chi-squared of fit: 15.38 DOF: 40 RMS: 0.14
# Min/Max residuals: -0.41 0.32
# Exact a, adot, b, bdot, g, gdot:
1.670060E-05 2.527179E-02 1.137086E-06 1.186628E-03 2.512961E-02 -3.461156E-04
# Covariance matrix:
1.8919E-13 -4.9093E-14 2.7607E-15 -1.9279E-15 1.5375E-13 -9.3362E-14
-4.9093E-14 4.3750E-14 -2.1188E-15 2.0073E-15 3.5495E-14 9.9143E-14
2.7607E-15 -2.1188E-15 1.1082E-13 -8.5257E-15 1.6769E-15 -4.9287E-15
-1.9279E-15 2.0073E-15 -8.5257E-15 1.5266E-15 1.6888E-15 4.7027E-15
1.5375E-13 3.5495E-14 1.6769E-15 1.6888E-15 9.2534E-13 9.2280E-14
-9.3362E-14 9.9143E-14 -4.9287E-15 4.7027E-15 9.2280E-14 2.3236E-13
# lat0 lon0 xBary yBary zBary JD0
1.559010 133.174884 -0.141117 0.026595 -0.972997 2453411.796653
# Heliocentric elements and errors
Epoch: 2453412.5000 = 2005/02/11
Mean Anomaly: 347.44592 +/- 0.032
Argument of Peri: 43.53519 +/- 0.035
Long of Asc Node: 103.82568 +/- 0.001
Inclination: 3.08298 +/- 0.000
Eccentricity: 0.05225612 +/- 0.0001
Semi-Major Axis: 42.95488169 +/- 0.0069
Time of Perihelion: 2456998.4116 +/- 25.7
Perihelion: 40.71022636 +/- 0.0082
Aphelion: 45.19953702 +/- 0.0088
Period (y) 281.5315 +/- 0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -27.99156686 +/- 0.0010
Ecliptic Y 29.62238579 +/- 0.0011
Ecliptic Z 1.08268485 +/- 0.0000
Ecliptic XDOT -0.00197990 +/- 0.0000
Ecliptic YDOT -0.00192115 +/- 0.0000
Ecliptic ZDOT 0.00012828 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 40.76992004 +/- 0.0011
Geocenter to KBO 39.79373336 +/- 0.0015
# Hcoef: 7.31
The following table shows the complete astrometric record for 05CE81. 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 (05CE81) followed by the observatory code and reference code for the source of the astrometry.
2005 02 10.29591 09 04 25.90 +18 21 26.0 24.1g 05CE81 568 C~0VDy 2005 02 10.37891 09 04 25.48 +18 21 27.8 23.9g 05CE81 568 C~0VDy 2005 02 10.41832 09 04 25.27 +18 21 28.6 24.0g 05CE81 568 C~0VDy 2005 04 11.28159 09 00 51.32 +18 35 45.4 23.4i 05CE81 568 C~0VDy 2005 04 11.30756 09 00 51.29 +18 35 45.5 23.7i 05CE81 568 C~0VDy 2005 04 11.33716 09 00 51.24 +18 35 45.6 24.0i 05CE81 568 C~0VDy 2006 02 06.31182 09 10 42.99 +17 58 26.7 23.5r 05CE81 568 C~0VDy 2006 02 06.35103 09 10 42.78 +17 58 27.8 05CE81 568 C~0VDy 2006 02 06.39104 09 10 42.58 +17 58 28.5 23.0 05CE81 568 C~0VDy 2007 02 14.45232 09 15 57.09 +17 39 24.8 22.9r 05CE81 568 C~0VDy 2007 02 14.48985 09 15 56.89 +17 39 25.7 23.0r 05CE81 568 C~0VDy 2007 02 14.52348 09 15 56.72 +17 39 26.2 05CE81 568 C~0VDy 2007 02 15.46682 09 15 52.01 +17 39 47.6 23.2r 05CE81 568 C~0VDy 2007 02 21.35812 09 15 22.98 +17 41 58.5 05CE81 675 C~0VDy 2007 02 21.41019 09 15 22.72 +17 41 59.7 22.9R 05CE81 675 C~0VDy 2013 03 13.14385 09 48 42.06 +15 25 13.3 23.3R 05CE81 G37 C~0qSY 2013 03 13.19463 09 48 41.83 +15 25 14.3 05CE81 G37 C~0qSY 2020 02 18.239550 10 30 18.222 +12 01 35.73 22.8G 05CE81 G37 C~3iN7 2020 02 18.329420 10 30 17.769 +12 01 38.61 05CE81 G37 C~3iN7 2020 02 18.391070 10 30 17.482 +12 01 40.11 05CE81 G37 C~3iN7 2021 02 15.316390 10 36 02.572 +11 31 07.43 23.0G 05CE81 G37 C~4Yry 2021 02 15.392770 10 36 02.199 +11 31 09.78 05CE81 G37 C~4Yry 2021 02 15.466470 10 36 01.850 +11 31 11.83 05CE81 G37 C~4Yry
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 -0.03
2 0.0002 0.00 -0.10 0.00 -0.06
3 0.0003 0.00 -0.21 0.00 -0.13
4 0.1642 0.00 0.07 0.00 0.03
5 0.1643 0.00 0.15 0.00 0.04
6 0.1644 0.00 0.00 0.00 0.03
7 0.9884 0.00 0.10 0.00 -0.02
8 0.9885 0.00 -0.01 0.00 0.17
9 0.9886 0.00 0.09 0.00 -0.05
10 2.0100 0.00 0.32 0.00 0.05
11 2.0101 0.00 0.19 0.00 0.10
12 2.0102 0.00 0.20 0.00 -0.16
13 2.0128 0.00 0.16 0.00 -0.20
14 2.0289 0.00 -0.34 0.00 0.05
15 2.0291 0.00 -0.41 0.00 0.13
16 8.0845 0.00 0.03 0.00 0.11
17 8.0846 0.00 -0.12 0.00 0.04
18 15.0197 0.00 0.18 0.00 -0.17
19 15.0199 0.00 -0.11 0.00 0.13
20 15.0201 0.00 0.06 0.00 -0.14
21 16.0137 0.00 0.06 0.00 -0.05
22 16.0140 0.00 -0.08 0.00 0.10
23 16.0142 0.00 -0.06 0.00 0.03
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.
05CE81 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 42.763 42.763 42.763 ecceobj 0.047 0.047 0.047 incobj 3.082 3.082 3.082 qmin 39.415 39.412 39.419 qmax 46.368 46.363 46.371 amean 42.772 42.772 42.772 amin 42.445 42.444 42.446 amax 43.127 43.129 43.125 emean 0.051 0.051 0.051 emin 0.030 0.031 0.030 emax 0.075 0.075 0.075 imean 1.648 1.648 1.648 imin 0.512 0.512 0.512 imax 2.767 2.767 2.766 excite_mean 0.059 0.059 0.059 fracstop 1.000 1.000 1.000 cjmean 3.083 3.083 3.083 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 186.4 186.3 186.5 kozaiamp 180.0 180.0 180.0