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: 182223 # Created Fri Apr 19 01:07:34 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 29 observations of 29 # Arc: 19.17y # First observation: 2000/12/17 # Last observation: 2020/02/18 # Chi-squared of fit: 172.02 DOF: 52 RMS: 0.43 # Min/Max residuals: -0.68 1.43 # Exact a, adot, b, bdot, g, gdot: 1.751729E-05 2.837136E-02 -6.269575E-06 -1.013379E-02 2.630865E-02 5.708221E-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 -2.964249 54.937724 -0.500733 -0.043664 -0.839919 2451895.605493 # Heliocentric elements and errors Epoch: 2451896.5000 = 2000/12/18 Mean Anomaly: 17.66700 +/- 0.000 Argument of Peri: 146.95010 +/- 0.000 Long of Asc Node: 227.59998 +/- 0.000 Inclination: 19.82599 +/- 0.000 Eccentricity: 0.39044126 +/- 0.0000 Semi-Major Axis: 59.23074371 +/- 0.0000 Time of Perihelion: 2443725.4183 +/- 0.0 Perihelion: 36.10461772 +/- 0.0000 Aphelion: 82.35686971 +/- 0.0000 Period (y) 455.8574 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 21.88392521 +/- 0.0000 Ecliptic Y 32.05219131 +/- 0.0000 Ecliptic Z -1.96584558 +/- 0.0000 Ecliptic XDOT -0.00211528 +/- 0.0000 Ecliptic YDOT 0.00214121 +/- 0.0000 Ecliptic ZDOT -0.00108372 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 38.86004364 +/- 0.0000 Geocenter to KBO 38.01021489 +/- 0.0000 # Hcoef: 7.57
The following table shows the complete astrometric record for 182223. 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 (182223) followed by the observatory code and reference code for the source of the astrometry.
2000 12 17.10475 03 33 19.49 +16 07 25.0 22.8R 182223 695 Cc4111 2000 12 17.15640 03 33 19.28 +16 07 24.1 22.6R 182223 695 Cc4111 2000 12 17.20342 03 33 19.03 +16 07 23.2 182223 695 Cc4111 2000 12 17.39258 03 33 18.23 +16 07 20.0 182223 695 Cc4111 2000 12 18.10599 03 33 15.16 +16 07 06.0 182223 695 Cc4111 2000 12 18.16722 03 33 14.89 +16 07 04.9 182223 695 Cc4111 2001 02 14.88915 03 31 30.07 +15 59 18.4 23.6R 182223 950 Cc6738 2001 02 16.84328 03 31 32.63 +15 59 26.3 182223 950 Cc6738 2001 02 16.91160 03 31 32.73 +15 59 26.2 182223 950 Cc6738 2001 09 20.46765 03 46 47.46 +16 27 50.0 182223 675 Ce0234 2001 09 20.47640 03 46 47.45 +16 27 50.0 182223 675 Ce0234 2001 09 21.37321 03 46 45.70 +16 27 35.9 182223 675 Ce0234 2001 09 21.44255 03 46 45.57 +16 27 34.7 23.1R 182223 675 Ce0234 2001 09 21.50335 03 46 45.45 +16 27 33.6 23.1R 182223 675 Ce0234 2001 11 09.47161 03 43 36.54 +16 10 03.3 182223 568 Ce0234 2001 11 09.58725 03 43 35.96 +16 10 00.5 182223 568 Ce0234 2002 11 11.25938 03 50 30.23 +15 57 14.7 182223 695 Cg5722 2002 11 12.27144 03 50 25.17 +15 56 50.9 22.2R 182223 695 Cg5722 2002 11 12.37216 03 50 24.66 +15 56 49.0 23.9R 182223 695 Cg5722 2002 11 12.42960 03 50 24.37 +15 56 47.3 23.5R 182223 695 Cg5722 2007 09 17.47917 04 26 43.93 +15 04 18.3 182223 675 Cy6674 2007 09 17.48758 04 26 43.88 +15 04 17.5 182223 675 Cy6674 2007 09 17.49591 04 26 43.90 +15 04 17.2 182223 675 Cy6674 2007 09 18.47993 04 26 43.19 +15 04 01.5 182223 675 Cy6674 2007 09 18.48562 04 26 43.19 +15 04 00.9 23.4R 182223 675 Cy6674 2008 03 04.13540 04 18 23.77 +14 34 24.9 182223 695 Cy7585 2008 03 05.12529 04 18 25.52 +14 34 34.7 182223 695 Cy7585 2020 02 18.145820 05 27 21.495 +11 16 01.19 24.5G 182223 G37 C~3oep 2020 02 18.290700 05 27 21.266 +11 16 02.78 182223 G37 C~3oep
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 -0.11 0.00 0.01
2 0.0001 0.00 0.17 0.00 0.07
3 0.0003 0.00 -0.45 0.00 0.04
4 0.0008 0.00 0.08 0.00 0.39
5 0.0027 0.00 -0.06 0.00 -0.42
6 0.0029 0.00 -0.10 0.00 -0.41
7 0.1637 0.00 -0.37 0.00 -0.18
8 0.1690 0.00 0.04 0.00 0.26
9 0.1692 0.00 0.18 0.00 -0.11
10 0.7594 0.00 -0.68 0.00 -0.60
11 0.7594 0.00 -0.57 0.00 -0.45
12 0.7619 0.00 -0.49 0.00 0.53
13 0.7620 0.00 -0.27 0.00 0.50
14 0.7622 0.00 -0.15 0.00 0.43
15 0.8963 0.00 -0.24 0.00 0.04
16 0.8966 0.00 0.05 0.00 -0.01
17 1.9005 0.00 -0.34 0.00 0.22
18 1.9033 0.00 1.12 0.00 -0.51
19 1.9035 0.00 1.31 0.00 -0.12
20 1.9037 0.00 1.43 0.00 -0.50
21 6.7498 0.00 0.24 0.00 0.76
22 6.7499 0.00 -0.41 0.00 0.09
23 6.7499 0.00 -0.02 0.00 -0.07
24 6.7526 0.00 -0.01 0.00 0.26
25 6.7526 0.00 0.06 0.00 -0.25
26 7.2116 0.00 -0.42 0.00 0.12
27 7.2143 0.00 -0.24 0.00 0.24
28 19.1705 0.00 0.11 0.00 -0.22
29 19.1709 0.00 -0.06 0.00 -0.15
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.
182223 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 59.270 59.270 59.270 ecceobj 0.391 0.391 0.391 incobj 19.826 19.826 19.826 qmin 34.773 34.530 35.083 qmax 83.771 83.755 83.351 amean 58.612 58.611 58.594 amin 57.900 57.882 57.900 amax 59.551 59.562 59.509 emean 0.387 0.388 0.382 emin 0.371 0.371 0.367 emax 0.407 0.410 0.402 imean 20.628 20.591 20.986 imin 19.942 19.594 20.112 imax 21.362 21.362 21.655 excite_mean 0.524 0.524 0.524 fracstop 1.000 1.000 1.000 cjmean 2.921 2.921 2.921 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 201.1 194.3 202.9 kozaiamp 180.0 180.0 179.9