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: 05VA123
# Created Sun Dec 22 02:08:52 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 21 observations of 21
# Arc: 15.03y
# First observation: 2005/11/02
# Last observation: 2020/11/14
# Chi-squared of fit: 30.18 DOF: 36 RMS: 0.21
# Min/Max residuals: -0.60 0.61
# Exact a, adot, b, bdot, g, gdot:
1.772037E-05 3.462706E-02 1.064945E-06 8.325667E-04 3.054831E-02 7.712265E-03
# Covariance matrix:
3.0285E-13 -7.6936E-14 1.7021E-15 -1.5215E-15 2.5662E-13 -1.2116E-13
-7.6936E-14 5.4979E-14 -1.1821E-15 1.2564E-15 -3.8264E-14 1.0308E-13
1.7021E-15 -1.1821E-15 1.1612E-13 -1.0330E-14 1.2584E-15 -2.3175E-15
-1.5215E-15 1.2564E-15 -1.0330E-14 2.8829E-15 -7.4920E-16 2.4933E-15
2.5662E-13 -3.8264E-14 1.2584E-15 -7.4920E-16 4.5284E-13 -5.3990E-14
-1.2116E-13 1.0308E-13 -2.3175E-15 2.4933E-15 -5.3990E-14 2.0493E-13
# lat0 lon0 xBary yBary zBary JD0
0.630565 64.354824 0.413648 0.010090 -0.906553 2453676.807023
# Heliocentric elements and errors
Epoch: 2453676.5000 = 2005/11/02
Mean Anomaly: 42.62915 +/- 0.011
Argument of Peri: 316.98542 +/- 0.015
Long of Asc Node: 39.81428 +/- 0.002
Inclination: 1.51785 +/- 0.000
Eccentricity: 0.24914975 +/- 0.0001
Semi-Major Axis: 39.37842042 +/- 0.0046
Time of Perihelion: 2442988.6576 +/- 3.3
Perihelion: 29.56729674 +/- 0.0040
Aphelion: 49.18954410 +/- 0.0061
Period (y) 247.1130 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 14.92748812 +/- 0.0003
Ecliptic Y 30.14527562 +/- 0.0006
Ecliptic Z 0.36029490 +/- 0.0000
Ecliptic XDOT -0.00249667 +/- 0.0000
Ecliptic YDOT 0.00195903 +/- 0.0000
Ecliptic ZDOT 0.00008223 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 33.64058768 +/- 0.0006
Geocenter to KBO 32.73494359 +/- 0.0007
# Hcoef: 7.14
The following table shows the complete astrometric record for 05VA123. 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 (05VA123) followed by the observatory code and reference code for the source of the astrometry.
2005 11 02.30628 04 09 00.78 +21 38 00.6 21.6R 05VA123 695 Cq2844 2005 11 02.36397 04 09 00.44 +21 37 59.9 05VA123 695 Cq2844 2005 11 02.42006 04 09 00.12 +21 37 59.1 05VA123 695 Cq2844 2005 12 02.22902 04 05 55.61 +21 30 07.0 21.4R 05VA123 695 Cq2844 2005 12 02.28236 04 05 55.27 +21 30 06.1 05VA123 695 Cq2844 2005 12 02.33562 04 05 54.93 +21 30 05.2 05VA123 695 Cq2844 2005 12 30.25003 04 03 14.32 +21 22 47.1 21.9R 05VA123 688 Cq2844 2005 12 30.31007 04 03 14.02 +21 22 47.1 05VA123 688 Cq2844 2006 02 25.11724 04 01 32.23 +21 17 30.8 22.2R 05VA123 688 Cq6138 2006 02 25.23876 04 01 32.40 +21 17 31.3 05VA123 688 Cq6138 2008 10 27.47806 04 34 08.17 +22 44 47.2 05VA123 695 C~01Mr 2008 10 27.51305 04 34 08.00 +22 44 47.1 05VA123 695 C~01Mr 2008 10 29.47624 04 33 58.20 +22 44 29.2 05VA123 695 C~01Mr 2008 10 29.50017 04 33 58.06 +22 44 29.0 05VA123 695 C~01Mr 2008 11 30.30058 04 30 50.23 +22 38 25.9 22.5R 05VA123 688 C~02Mb 2008 11 30.37919 04 30 49.70 +22 38 25.4 05VA123 688 C~02Mb 2010 12 02.38095 04 46 46.77 +23 14 13.3 23.0R 05VA123 688 C~0Pjb 2010 12 02.44628 04 46 46.36 +23 14 12.5 05VA123 688 C~0Pjb 2020 11 14.429950 06 03 20.885 +24 37 24.05 22.7G 05VA123 G37 C~4NJL 2020 11 14.477410 06 03 20.661 +24 37 23.93 05VA123 G37 C~4NJL 2020 11 14.506510 06 03 20.535 +24 37 23.67 05VA123 G37 C~4NJL
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 -0.12
2 0.0002 0.00 -0.01 0.00 -0.02
3 0.0003 0.00 0.07 0.00 -0.03
4 0.0819 0.00 0.15 0.00 -0.15
5 0.0821 0.00 0.19 0.00 -0.16
6 0.0822 0.00 0.21 0.00 -0.16
7 0.1586 0.00 -0.12 0.00 -0.60
8 0.1588 0.00 -0.14 0.00 0.24
9 0.3143 0.00 0.26 0.00 -0.14
10 0.3147 0.00 -0.23 0.00 -0.10
11 2.9847 0.00 -0.07 0.00 0.22
12 2.9848 0.00 -0.00 0.00 0.44
13 2.9902 0.00 -0.09 0.00 0.07
14 2.9903 0.00 -0.34 0.00 0.09
15 3.0773 0.00 0.17 0.00 0.08
16 3.0775 0.00 -0.18 0.00 0.61
17 5.0817 0.00 0.03 0.00 0.09
18 5.0818 0.00 0.15 0.00 -0.01
19 15.0339 0.00 0.02 0.00 0.12
20 15.0340 0.00 -0.06 0.00 -0.09
21 15.0341 0.00 0.06 0.00 -0.39
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.
05VA123 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.924 39.924 39.924 ecceobj 0.258 0.258 0.258 incobj 1.512 1.512 1.512 qmin 29.009 29.026 28.989 qmax 50.493 50.477 50.492 amean 39.456 39.455 39.455 amin 39.038 39.018 39.020 amax 39.973 39.973 39.973 emean 0.249 0.249 0.249 emin 0.235 0.235 0.235 emax 0.263 0.264 0.264 imean 1.108 1.090 1.126 imin 0.645 0.631 0.661 imax 1.782 1.782 1.782 excite_mean 0.249 0.249 0.249 fracstop 1.000 1.000 1.000 cjmean 2.980 2.980 2.980 libcent 0 180.0 180.1 179.8 libamp 0 70.6 72.0 70.7 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 170.4 170.3 170.5 kozaiamp 180.0 180.0 180.0