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: 04KF19 # Created Wed Dec 25 02:08:34 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 22 observations of 22 # Arc: 12.04y # First observation: 2004/05/24 # Last observation: 2016/06/08 # Chi-squared of fit: 17.84 DOF: 38 RMS: 0.16 # Min/Max residuals: -0.30 0.32 # Exact a, adot, b, bdot, g, gdot: 1.730814E-05 2.486728E-02 -7.686007E-07 -7.544890E-06 2.472110E-02 -5.912649E-04 # Covariance matrix: 1.7517E-13 -7.5915E-14 -3.7083E-17 1.8922E-17 7.4514E-14 -2.0853E-13 -7.5915E-14 1.0921E-13 -1.4464E-17 -3.2214E-17 2.0301E-13 3.2865E-13 -3.7083E-17 -1.4464E-17 1.0071E-13 -1.1985E-14 -2.8347E-16 -3.4218E-17 1.8922E-17 -3.2214E-17 -1.1985E-14 4.1440E-15 -6.6033E-17 -1.0061E-16 7.4514E-14 2.0301E-13 -2.8347E-16 -6.6033E-17 1.4951E-12 5.8743E-13 -2.0853E-13 3.2865E-13 -3.4218E-17 -1.0061E-16 5.8743E-13 1.0301E-12 # lat0 lon0 xBary yBary zBary JD0 -0.109652 -131.782137 -0.270358 -0.001816 -0.976018 2453149.856713 # Heliocentric elements and errors Epoch: 2453150.5000 = 2004/05/25 Mean Anomaly: 347.95579 +/- 0.033 Argument of Peri: 276.41328 +/- 0.087 Long of Asc Node: 325.93888 +/- 0.079 Inclination: 0.10795 +/- 0.000 Eccentricity: 0.06609418 +/- 0.0001 Semi-Major Axis: 44.28241310 +/- 0.0090 Time of Perihelion: 2456751.4845 +/- 33.2 Perihelion: 41.35560342 +/- 0.0106 Aphelion: 47.20922278 +/- 0.0115 Period (y) 294.6830 +/- 0.09 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -27.40475829 +/- 0.0013 Ecliptic Y -31.07034187 +/- 0.0015 Ecliptic Z -0.07741740 +/- 0.0000 Ecliptic XDOT 0.00209460 +/- 0.0000 Ecliptic YDOT -0.00179316 +/- 0.0000 Ecliptic ZDOT -0.00000059 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 41.42938209 +/- 0.0014 Geocenter to KBO 40.45132298 +/- 0.0020 # Hcoef: 6.85
The following table shows the complete astrometric record for 04KF19. 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 (04KF19) followed by the observatory code and reference code for the source of the astrometry.
2004 05 24.35597 15 02 54.11 -17 21 35.3 23.4g 04KF19 568 C~0VDq 2004 05 24.37910 15 02 54.00 -17 21 34.9 23.0g 04KF19 568 C~0VDq 2004 05 24.40347 15 02 53.88 -17 21 34.4 23.3g 04KF19 568 C~0VDq 2004 05 25.36486 15 02 49.44 -17 21 16.0 04KF19 568 C~0VDq 2004 06 10.27217 15 01 40.21 -17 16 27.7 22.4i 04KF19 568 C~0VDq 2004 06 10.33739 15 01 39.95 -17 16 26.7 22.5i 04KF19 568 C~0VDq 2004 06 10.40819 15 01 39.66 -17 16 25.3 22.6i 04KF19 568 C~0VDq 2005 05 14.38273 15 09 29.14 -17 48 23.6 22.7r 04KF19 568 C~0VDq 2005 05 14.41646 15 09 28.97 -17 48 22.9 22.6r 04KF19 568 C~0VDq 2005 05 14.45529 15 09 28.76 -17 48 22.2 22.7r 04KF19 568 C~0VDq 2005 05 17.35241 15 09 14.63 -17 47 25.3 22.7r 04KF19 568 C~0VDq 2006 06 30.27387 15 12 00.66 -17 58 22.7 23.5r 04KF19 568 C~0VDq 2006 06 30.27625 15 12 00.66 -17 58 22.6 23.8r 04KF19 568 C~0VDq 2006 06 30.28067 15 12 00.63 -17 58 22.8 23.5r 04KF19 568 C~0VDq 2006 06 30.28494 15 12 00.62 -17 58 22.7 23.4r 04KF19 568 C~0VDq 2006 07 01.29568 15 11 57.69 -17 58 10.9 22.8r 04KF19 568 C~0VDq 2006 07 01.30878 15 11 57.64 -17 58 11.0 23.0r 04KF19 568 C~0VDq 2008 06 07.07036 15 25 03.42 -18 47 57.2 04KF19 807 C~0VDq 2008 06 07.26990 15 25 02.50 -18 47 54.1 04KF19 807 C~0VDq 2016 06 08.18295 16 12 32.583 -21 15 23.08 22.7R 04KF19 G37 C~2bkb 2016 06 08.22140 16 12 32.395 -21 15 22.62 04KF19 G37 C~2bkb 2016 06 08.26320 16 12 32.207 -21 15 21.93 04KF19 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 -0.25 0.00 0.23
2 0.0001 0.00 -0.24 0.00 0.18
3 0.0001 0.00 -0.30 0.00 0.21
4 0.0028 0.00 0.32 0.00 0.01
5 0.0463 0.00 0.13 0.00 -0.13
6 0.0465 0.00 0.22 0.00 -0.22
7 0.0467 0.00 0.19 0.00 -0.00
8 0.9720 0.00 0.10 0.00 -0.12
9 0.9721 0.00 0.08 0.00 -0.08
10 0.9722 0.00 -0.17 0.00 -0.14
11 0.9801 0.00 0.09 0.00 0.14
12 2.0997 0.00 -0.06 0.00 0.06
13 2.0997 0.00 0.05 0.00 0.13
14 2.0997 0.00 -0.20 0.00 -0.12
15 2.0997 0.00 -0.15 0.00 -0.07
16 2.1025 0.00 0.03 0.00 0.02
17 2.1025 0.00 -0.14 0.00 -0.23
18 4.0375 0.00 0.18 0.00 0.18
19 4.0381 0.00 0.02 0.00 -0.01
20 12.0406 0.00 -0.18 0.00 -0.04
21 12.0407 0.00 -0.09 0.00 -0.06
22 12.0408 0.00 0.25 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.
04KF19 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.846 43.846 43.846 ecceobj 0.058 0.058 0.058 incobj 0.108 0.108 0.108 qmin 40.785 40.785 40.838 qmax 47.782 47.781 47.756 amean 44.180 44.180 44.179 amin 43.835 43.834 43.831 amax 44.537 44.543 44.537 emean 0.058 0.058 0.057 emin 0.041 0.041 0.041 emax 0.073 0.073 0.073 imean 1.963 1.963 1.963 imin 1.253 1.253 1.253 imax 2.535 2.535 2.535 excite_mean 0.067 0.067 0.067 fracstop 1.000 1.000 1.000 cjmean 3.098 3.098 3.098 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 167.1 167.1 167.3 kozaiamp 179.9 179.9 180.0