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: 04KG19 # Created Sat Apr 20 01:11:51 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 19 observations of 19 # Arc: 10.89y # First observation: 2004/05/24 # Last observation: 2015/04/15 # Chi-squared of fit: 12.78 DOF: 32 RMS: 0.14 # Min/Max residuals: -0.23 0.31 # Exact a, adot, b, bdot, g, gdot: 1.599994E-05 2.358649E-02 -1.330805E-06 1.313803E-04 2.416399E-02 9.511986E-06 # Covariance matrix: 2.1632E-13 -1.4135E-13 1.5940E-16 -5.9977E-16 1.8251E-13 -3.9746E-13 -1.4135E-13 1.9495E-13 -6.4620E-16 9.9954E-16 -9.5650E-16 6.5590E-13 1.5940E-16 -6.4620E-16 1.0989E-13 -1.3210E-14 -2.5349E-15 -2.8715E-15 -5.9977E-16 9.9954E-16 -1.3210E-14 5.2696E-15 6.8626E-16 3.6297E-15 1.8251E-13 -9.5650E-16 -2.5349E-15 6.8626E-16 1.6656E-12 4.1473E-13 -3.9746E-13 6.5590E-13 -2.8715E-15 3.6297E-15 4.1473E-13 2.3729E-12 # lat0 lon0 xBary yBary zBary JD0 -0.927386 -131.756579 -0.269946 -0.015747 -0.976007 2453149.858113 # Heliocentric elements and errors Epoch: 2453150.5000 = 2004/05/25 Mean Anomaly: 20.27892 +/- 0.178 Argument of Peri: 268.63477 +/- 0.188 Long of Asc Node: 298.61734 +/- 0.010 Inclination: 0.96406 +/- 0.000 Eccentricity: 0.02617795 +/- 0.0002 Semi-Major Axis: 43.42457981 +/- 0.0097 Time of Perihelion: 2447262.8188 +/- 51.6 Perihelion: 42.28781346 +/- 0.0117 Aphelion: 44.56134617 +/- 0.0121 Period (y) 286.1618 +/- 0.10 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -28.00884658 +/- 0.0015 Ecliptic Y -31.77408129 +/- 0.0016 Ecliptic Z -0.66983387 +/- 0.0000 Ecliptic XDOT 0.00199002 +/- 0.0000 Ecliptic YDOT -0.00178770 +/- 0.0000 Ecliptic ZDOT 0.00001499 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 42.36196293 +/- 0.0016 Geocenter to KBO 41.38393623 +/- 0.0022 # Hcoef: 7.30
The following table shows the complete astrometric record for 04KG19. 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 (04KG19) followed by the observatory code and reference code for the source of the astrometry.
2004 05 24.35737 15 02 02.96 -18 09 08.5 24.1g 04KG19 568 C~0VDq 2004 05 24.38051 15 02 02.85 -18 09 08.3 24.1g 04KG19 568 C~0VDq 2004 05 24.40488 15 02 02.73 -18 09 07.8 23.9g 04KG19 568 C~0VDq 2004 05 25.36626 15 01 58.32 -18 08 49.3 23.7g 04KG19 568 C~0VDq 2004 06 10.27217 15 00 50.13 -18 03 56.0 23.1i 04KG19 568 C~0VDq 2004 06 10.33739 15 00 49.86 -18 03 54.6 23.3i 04KG19 568 C~0VDq 2004 06 10.40819 15 00 49.58 -18 03 53.4 23.4i 04KG19 568 C~0VDq 2005 05 14.38273 15 08 21.16 -18 34 21.5 23.3r 04KG19 568 C~0VDq 2005 05 14.41646 15 08 21.00 -18 34 20.9 23.3r 04KG19 568 C~0VDq 2005 05 14.45529 15 08 20.80 -18 34 20.1 23.2r 04KG19 568 C~0VDq 2005 07 11.07989 15 04 45.44 -18 19 04.4 23.0R 04KG19 809 C~0VDq 2005 07 11.11440 15 04 45.37 -18 19 04.1 23.2R 04KG19 809 C~0VDq 2006 05 26.38188 15 12 56.37 -18 51 54.1 23.9r 04KG19 568 C~0VDq 2006 05 26.41525 15 12 56.21 -18 51 53.4 23.9r 04KG19 568 C~0VDq 2006 05 26.44870 15 12 56.06 -18 51 52.9 23.8r 04KG19 568 C~0VDq 2006 05 27.45918 15 12 51.33 -18 51 34.1 04KG19 568 C~0VDq 2015 04 15.39737 16 06 32.44 -21 42 32.5 23.2R 04KG19 695 C~1RHU 2015 04 15.43535 16 06 32.28 -21 42 31.9 04KG19 695 C~1RHU 2015 04 15.47410 16 06 32.12 -21 42 31.8 04KG19 695 C~1RHU
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 -0.03 0.00 0.31
2 0.0001 0.00 -0.05 0.00 0.06
3 0.0001 0.00 -0.13 0.00 0.09
4 0.0028 0.00 -0.02 0.00 -0.14
5 0.0463 0.00 0.25 0.00 -0.21
6 0.0465 0.00 0.13 0.00 0.07
7 0.0467 0.00 0.19 0.00 0.05
8 0.9720 0.00 -0.16 0.00 -0.14
9 0.9721 0.00 -0.08 0.00 -0.20
10 0.9722 0.00 -0.21 0.00 -0.16
11 1.1300 0.00 -0.13 0.00 0.13
12 1.1301 0.00 -0.16 0.00 0.12
13 2.0042 0.00 0.08 0.00 0.02
14 2.0043 0.00 0.06 0.00 0.09
15 2.0044 0.00 0.20 0.00 -0.03
16 2.0071 0.00 -0.02 0.00 -0.06
17 10.8913 0.00 0.25 0.00 -0.07
18 10.8914 0.00 -0.01 0.00 0.18
19 10.8915 0.00 -0.23 0.00 -0.08
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.
04KG19 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.011 43.011 43.011 ecceobj 0.016 0.016 0.016 incobj 0.964 0.964 0.964 qmin 41.602 41.603 41.600 qmax 45.177 45.178 45.176 amean 43.326 43.326 43.326 amin 42.993 42.993 42.993 amax 43.666 43.666 43.666 emean 0.018 0.018 0.018 emin 0.000 0.000 0.000 emax 0.035 0.035 0.035 imean 2.728 2.728 2.728 imin 1.897 1.897 1.897 imax 3.433 3.433 3.433 excite_mean 0.052 0.052 0.052 fracstop 1.000 1.000 1.000 cjmean 3.090 3.090 3.090 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 176.4 176.4 176.4 kozaiamp 179.9 180.0 179.9