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: 04KH19 # Created Fri Nov 22 02:08:37 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 23 observations of 23 # Arc: 12.04y # First observation: 2004/05/24 # Last observation: 2016/06/08 # Chi-squared of fit: 21.19 DOF: 40 RMS: 0.17 # Min/Max residuals: -0.26 0.46 # Exact a, adot, b, bdot, g, gdot: 1.107706E-05 1.756091E-02 8.995538E-06 1.237089E-02 2.347280E-02 1.941405E-03 # Covariance matrix: 1.7729E-13 -7.1430E-14 4.8157E-14 -4.2032E-14 4.9862E-14 -2.7551E-13 -7.1430E-14 5.5067E-14 -4.1905E-14 3.6469E-14 8.4936E-15 2.3867E-13 4.8157E-14 -4.1905E-14 1.4116E-13 -4.4026E-14 -2.7163E-15 -1.9804E-13 -4.2032E-14 3.6469E-14 -4.4026E-14 3.0843E-14 9.5152E-16 1.7243E-13 4.9862E-14 8.4936E-15 -2.7163E-15 9.5152E-16 6.9247E-13 1.1934E-15 -2.7551E-13 2.3867E-13 -1.9804E-13 1.7243E-13 1.1934E-15 1.1288E-12 # lat0 lon0 xBary yBary zBary JD0 -1.896759 -129.985787 -0.239748 -0.032518 -0.983451 2453149.863713 # Heliocentric elements and errors Epoch: 2453150.5000 = 2004/05/25 Mean Anomaly: 118.43116 +/- 0.060 Argument of Peri: 227.36392 +/- 0.046 Long of Asc Node: 232.95332 +/- 0.000 Inclination: 35.20405 +/- 0.000 Eccentricity: 0.11742357 +/- 0.0001 Semi-Major Axis: 40.90157082 +/- 0.0053 Time of Perihelion: 2421718.5079 +/- 17.1 Perihelion: 36.09876253 +/- 0.0053 Aphelion: 45.70437912 +/- 0.0064 Period (y) 261.5882 +/- 0.05 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -27.81344604 +/- 0.0010 Ecliptic Y -33.53075364 +/- 0.0012 Ecliptic Z -1.40967244 +/- 0.0001 Ecliptic XDOT 0.00139061 +/- 0.0000 Ecliptic YDOT -0.00153320 +/- 0.0000 Ecliptic ZDOT 0.00143477 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 43.58762603 +/- 0.0011 Geocenter to KBO 42.60247382 +/- 0.0015 # Hcoef: 6.35
The following table shows the complete astrometric record for 04KH19. 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 (04KH19) followed by the observatory code and reference code for the source of the astrometry.
2004 05 24.36297 15 08 07.00 -19 34 16.5 22.8g 04KH19 568 C~0VDq 2004 05 24.38613 15 08 06.90 -19 34 15.9 22.9g 04KH19 568 C~0VDq 2004 05 24.41052 15 08 06.77 -19 34 15.3 22.5g 04KH19 568 C~0VDq 2004 05 25.37186 15 08 02.31 -19 33 49.8 04KH19 568 C~0VDq 2005 05 14.38834 15 13 50.28 -19 13 56.7 22.8r 04KH19 568 C~0VDq 2005 05 14.42207 15 13 50.12 -19 13 55.9 22.8r 04KH19 568 C~0VDq 2005 05 14.46085 15 13 49.92 -19 13 55.0 22.8r 04KH19 568 C~0VDq 2005 05 17.35805 15 13 36.07 -19 12 39.6 22.6r 04KH19 568 C~0VDq 2005 05 17.36303 15 13 36.04 -19 12 39.4 22.8r 04KH19 568 C~0VDq 2005 08 02.02947 15 09 47.60 -18 47 15.9 04KH19 309 C~0VDq 2005 08 03.02896 15 09 47.52 -18 47 07.0 04KH19 309 C~0VDq 2005 08 03.03393 15 09 47.52 -18 47 06.9 04KH19 309 C~0VDq 2006 05 26.37704 15 17 47.14 -18 43 48.3 22.8r 04KH19 568 C~0VDq 2006 05 26.41049 15 17 47.00 -18 43 47.3 23.0r 04KH19 568 C~0VDq 2006 05 26.44397 15 17 46.82 -18 43 46.4 23.0r 04KH19 568 C~0VDq 2006 05 27.45448 15 17 42.17 -18 43 21.9 04KH19 568 C~0VDq 2008 06 08.04061 15 26 25.00 -17 47 28.7 22.0R 04KH19 807 C~0VDq 2008 06 08.08634 15 26 24.78 -17 47 27.6 04KH19 807 C~0VDq 2008 06 08.14832 15 26 24.52 -17 47 26.3 04KH19 807 C~0VDq 2009 04 23.61690 15 34 40.23 -17 39 09.6 04KH19 568 C~0VDq 2016 06 08.18138 16 03 10.721 -14 10 24.23 22.4R 04KH19 G37 C~2bkb 2016 06 08.21976 16 03 10.543 -14 10 23.51 04KH19 G37 C~2bkb 2016 06 08.26093 16 03 10.362 -14 10 22.84 04KH19 G37 C~2bkb
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 0.12 0.00 -0.17
2 0.0001 0.00 0.26 0.00 -0.18
3 0.0001 0.00 0.04 0.00 -0.23
4 0.0028 0.00 -0.21 0.00 -0.05
5 0.9720 0.00 -0.02 0.00 0.01
6 0.9721 0.00 0.05 0.00 -0.06
7 0.9722 0.00 -0.11 0.00 -0.17
8 0.9801 0.00 0.01 0.00 0.26
9 0.9802 0.00 -0.08 0.00 0.33
10 1.1901 0.00 -0.06 0.00 -0.16
11 1.1928 0.00 -0.00 0.00 -0.16
12 1.1928 0.00 0.01 0.00 -0.11
13 2.0041 0.00 -0.16 0.00 0.23
14 2.0042 0.00 0.11 0.00 0.40
15 2.0043 0.00 -0.22 0.00 0.46
16 2.0071 0.00 0.21 0.00 -0.26
17 4.0402 0.00 0.09 0.00 0.02
18 4.0403 0.00 -0.22 0.00 0.12
19 4.0405 0.00 -0.06 0.00 0.04
20 4.9151 0.00 0.07 0.00 -0.20
21 12.0406 0.00 -0.00 0.00 -0.06
22 12.0407 0.00 -0.04 0.00 0.00
23 12.0408 0.00 0.08 0.00 -0.04
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.
04KH19 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 40.594 40.594 40.594 ecceobj 0.119 0.119 0.119 incobj 35.346 35.346 35.346 qmin 35.271 35.262 35.247 qmax 46.654 46.653 46.617 amean 40.810 40.811 40.810 amin 40.478 40.481 40.488 amax 41.153 41.158 41.154 emean 0.118 0.118 0.118 emin 0.104 0.104 0.104 emax 0.134 0.134 0.133 imean 36.279 36.281 36.280 imin 35.953 35.954 35.956 imax 36.591 36.591 36.584 excite_mean 0.603 0.603 0.603 fracstop 1.000 1.000 1.000 cjmean 2.601 2.601 2.601 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 186.4 186.2 186.4 kozaiamp 180.0 180.0 179.9