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: 183963
# Created Sat Apr 20 01:07:40 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 28 observations of 28
# Arc: 18.11y
# First observation: 2003/04/01
# Last observation: 2021/05/12
# Chi-squared of fit: 76.26 DOF: 50 RMS: 0.29
# Min/Max residuals: -0.74 0.70
# Exact a, adot, b, bdot, g, gdot:
1.500018E-05 2.374597E-02 1.075933E-06 4.716752E-04 2.414908E-02 -2.415490E-03
# Covariance matrix:
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
# lat0 lon0 xBary yBary zBary JD0
2.225664 165.568714 -0.433331 0.034913 -0.898490 2452730.716898
# Heliocentric elements and errors
Epoch: 2452730.5000 = 2003/04/01
Mean Anomaly: 305.35986 +/- 0.000
Argument of Peri: 128.04002 +/- 0.000
Long of Asc Node: 103.10697 +/- 0.000
Inclination: 2.44337 +/- 0.000
Eccentricity: 0.10294371 +/- 0.0000
Semi-Major Axis: 44.62872126 +/- 0.0000
Time of Perihelion: 2469258.8461 +/- 0.0
Perihelion: 40.03447503 +/- 0.0000
Aphelion: 49.22296749 +/- 0.0000
Period (y) 298.1466 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -41.05351793 +/- 0.0000
Ecliptic Y 10.12043712 +/- 0.0000
Ecliptic Z 1.60821694 +/- 0.0000
Ecliptic XDOT -0.00041027 +/- 0.0000
Ecliptic YDOT -0.00268069 +/- 0.0000
Ecliptic ZDOT 0.00004299 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.31318725 +/- 0.0000
Geocenter to KBO 41.40954863 +/- 0.0000
# Hcoef: 7.11
The following table shows the complete astrometric record for 183963. 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 (183963) followed by the observatory code and reference code for the source of the astrometry.
2003 04 01.216155 11 10 20.38 +07 44 26.4 22.7V 183963 645 C~2KGJ 2003 04 01.216984 11 10 20.38 +07 44 26.4 22.2V 183963 645 C~2KGJ 2003 04 01.219472 11 10 20.37 +07 44 26.4 23.6V 183963 645 C~2KGJ 2004 02 26.35815 11 17 57.92 +06 58 09.7 22.9R 183963 695 Ck0899 2004 02 26.43653 11 17 57.56 +06 58 12.1 183963 695 Ck0899 2004 02 27.31905 11 17 53.69 +06 58 37.4 183963 695 Ck0899 2004 03 15.21148 11 16 37.86 +07 06 43.7 22.7R 183963 695 Ck4349 2004 03 15.29066 11 16 37.50 +07 06 46.1 183963 695 Ck4349 2005 04 10.20358 11 19 58.38 +06 46 49.2 23.5R 183963 695 Cn6536 2005 04 10.32526 11 19 57.91 +06 46 51.5 183963 695 Cn6536 2005 06 06.99845 11 18 16.51 +06 54 57.4 23.4R 183963 304 Cn6536 2005 06 07.99384 11 18 17.12 +06 54 50.2 183963 304 Cn6536 2006 04 26.04846 11 24 13.72 +06 20 48.1 22.8R 183963 807 Cr3590 2006 04 26.13262 11 24 13.49 +06 20 49.6 183963 807 Cr3590 2006 04 27.07190 11 24 10.77 +06 21 04.2 183963 807 Cr3590 2006 06 21.96403 11 23 34.62 +06 22 01.9 23.4R 183963 304 Cr4844 2006 06 21.98458 11 23 34.66 +06 22 01.4 183963 304 Cr4844 2008 03 03.28811 11 38 08.64 +04 55 11.3 183963 695 Cy7593 2008 03 03.35342 11 38 08.31 +04 55 13.5 183963 695 Cy7593 2008 03 04.39062 11 38 03.75 +04 55 43.8 183963 695 Cy7593 2013 03 14.27946 12 03 20.60 +02 17 33.5 23.0R 183963 695 C~0upO 2013 03 14.38911 12 03 20.10 +02 17 36.5 183963 695 C~0upO 2013 03 14.44946 12 03 19.83 +02 17 38.4 183963 695 C~0upO 2017 01 23.61026 12 27 09.65 -00 16 11.3 23.5i 183963 T09 C~7yuN 2017 01 23.64112 12 27 09.58 -00 16 10.8 23.6i 183963 T09 C~7yuN 2017 01 23.64653 12 27 09.58 -00 16 10.8 23.4i 183963 T09 C~7yuN 2021 05 12.176030 12 41 45.456 -01 47 10.04 23.1G 183963 G37 C~4tE2 2021 05 12.227540 12 41 45.284 -01 47 09.07 183963 G37 C~4tE2
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 0.04 0.00 -0.19
2 0.0000 0.00 0.09 0.00 -0.21
3 0.0000 0.00 0.10 0.00 -0.27
4 0.9066 0.00 -0.14 0.00 0.16
5 0.9068 0.00 -0.28 0.00 0.30
6 0.9092 0.00 -0.03 0.00 0.08
7 0.9555 0.00 -0.03 0.00 -0.04
8 0.9557 0.00 -0.02 0.00 0.13
9 2.0260 0.00 0.70 0.00 0.30
10 2.0263 0.00 0.60 0.00 -0.08
11 2.1842 0.00 0.10 0.00 -0.04
12 2.1869 0.00 0.01 0.00 -0.11
13 3.0687 0.00 -0.25 0.00 0.04
14 3.0689 0.00 0.08 0.00 0.17
15 3.0715 0.00 -0.19 0.00 -0.22
16 3.2245 0.00 -0.74 0.00 -0.36
17 3.2246 0.00 -0.65 0.00 -0.57
18 4.9229 0.00 0.19 0.00 0.23
19 4.9230 0.00 -0.37 0.00 0.50
20 4.9259 0.00 0.09 0.00 0.25
21 9.9523 0.00 0.25 0.00 0.20
22 9.9526 0.00 0.25 0.00 -0.07
23 9.9527 0.00 0.32 0.00 0.03
24 13.8163 0.00 -0.34 0.00 0.06
25 13.8164 0.00 -0.66 0.00 0.15
26 13.8164 0.00 -0.53 0.00 0.07
27 18.1135 0.00 -0.14 0.00 -0.13
28 18.1137 0.00 -0.12 0.00 -0.10
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.
183963 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.188 44.187 44.188 ecceobj 0.098 0.098 0.098 incobj 2.444 2.444 2.444 qmin 39.365 39.343 39.379 qmax 49.730 49.784 49.742 amean 44.423 44.423 44.423 amin 44.062 44.067 44.060 amax 44.815 44.823 44.815 emean 0.094 0.094 0.094 emin 0.078 0.078 0.078 emax 0.110 0.111 0.111 imean 0.866 0.866 0.866 imin 0.000 0.000 0.000 imax 1.478 1.478 1.478 excite_mean 0.096 0.096 0.096 fracstop 1.000 1.000 1.000 cjmean 3.095 3.095 3.095 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 185.6 185.4 185.5 kozaiamp 180.0 179.9 180.0