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: 149560 # Created Thu Nov 21 02:06:57 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 21 observations of 21 # Arc: 12.03y # First observation: 2003/08/24 # Last observation: 2015/09/04 # Chi-squared of fit: 164.41 DOF: 36 RMS: 0.49 # Min/Max residuals: -0.61 1.11 # Exact a, adot, b, bdot, g, gdot: 2.098105E-05 5.151713E-02 -1.145751E-05 -3.553756E-02 4.274558E-02 1.643280E-02 # 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 -3.417666 -45.067726 -0.269650 -0.058318 -0.977227 2452875.541333 # Heliocentric elements and errors Epoch: 2452876.5000 = 2003/08/25 Mean Anomaly: 16.52662 +/- 0.000 Argument of Peri: 137.07337 +/- 0.000 Long of Asc Node: 130.85266 +/- 0.000 Inclination: 34.88423 +/- 0.000 Eccentricity: 0.47474242 +/- 0.0000 Semi-Major Axis: 41.32132073 +/- 0.0000 Time of Perihelion: 2448422.5920 +/- 0.0 Perihelion: 21.70433709 +/- 0.0000 Aphelion: 60.93830437 +/- 0.0000 Period (y) 265.6253 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 17.37310528 +/- 0.0000 Ecliptic Y -17.03092818 +/- 0.0000 Ecliptic Z -1.39489760 +/- 0.0000 Ecliptic XDOT 0.00297692 +/- 0.0000 Ecliptic YDOT 0.00167700 +/- 0.0000 Ecliptic ZDOT -0.00233470 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 24.36833894 +/- 0.0000 Geocenter to KBO 23.39412798 +/- 0.0000 # Hcoef: 7.78
The following table shows the complete astrometric record for 149560. 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 (149560) followed by the observatory code and reference code for the source of the astrometry.
2003 08 24.04059 21 13 50.03 -19 37 15.7 20.7R 149560 807 Ci4137 2003 08 24.14712 21 13 49.23 -19 37 21.1 149560 807 Ci4137 2003 08 25.05638 21 13 42.54 -19 38 07.3 149560 807 Ci4137 2003 10 02.24064 21 10 03.50 -20 03 47.2 22.3R 149560 568 Ci6964 2003 10 02.35859 21 10 03.08 -20 03 50.4 149560 568 Ci6964 2004 08 12.13921 21 29 36.46 -20 27 57.8 20.8R 149560 807 Cp9888 2004 08 12.24922 21 29 35.60 -20 28 03.9 149560 807 Cp9888 2005 12 01.08797 21 38 21.25 -21 58 14.3 21.6R 149560 695 Cp9888 2005 12 02.06934 21 38 26.21 -21 57 50.8 149560 695 Cp9888 2005 12 02.09457 21 38 26.34 -21 57 50.3 149560 695 Cp9888 2006 04 26.39761 22 00 46.69 -20 50 19.6 149560 807 Cr3580 2006 04 27.40990 22 00 52.35 -20 50 28.3 149560 807 Cr3580 2006 04 28.40019 22 00 57.78 -20 50 37.3 149560 807 Cr3580 2006 08 03.49795 21 58 27.74 -22 01 10.7 21.8R 149560 250 S~06He 2006 08 03.50235 21 58 27.70 -22 01 11.1 149560 250 S~06He 2006 08 03.50674 21 58 27.67 -22 01 11.3 149560 250 S~06He 2006 08 03.51114 21 58 27.64 -22 01 11.6 149560 250 S~06He 2015 09 04.288434 23 42 04.53 -26 02 17.4 149560 309 C~5jqk 2015 09 04.291724 23 42 04.52 -26 02 17.3 149560 309 C~5jqk 2015 09 04.295016 23 42 04.49 -26 02 17.6 149560 309 C~5jqk 2015 09 04.301599 23 42 04.46 -26 02 18.0 149560 309 C~5jqk
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 -0.29 0.00 -0.45
2 0.0003 0.00 -0.26 0.00 -0.38
3 0.0028 0.00 -0.19 0.00 -0.35
4 0.1073 0.00 0.34 0.00 0.28
5 0.1076 0.00 0.50 0.00 0.35
6 0.9695 0.00 -0.17 0.00 -0.40
7 0.9698 0.00 -0.25 0.00 -0.38
8 2.2725 0.00 -0.17 0.00 -0.34
9 2.2752 0.00 -0.43 0.00 -0.33
10 2.2753 0.00 -0.38 0.00 -0.45
11 2.6731 0.00 -0.29 0.00 -0.39
12 2.6759 0.00 -0.37 0.00 -0.61
13 2.6786 0.00 0.00 0.00 -0.47
14 2.9444 0.00 0.84 0.00 1.11
15 2.9445 0.00 0.70 0.00 0.97
16 2.9445 0.00 0.71 0.00 1.04
17 2.9445 0.00 0.73 0.00 1.00
18 12.0308 0.00 -0.12 0.00 -0.29
19 12.0308 0.00 0.05 0.00 -0.01
20 12.0308 0.00 -0.08 0.00 -0.14
21 12.0308 0.00 0.10 0.00 -0.18
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.
149560 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 41.538 41.538 41.537 ecceobj 0.476 0.476 0.476 incobj 34.820 34.820 34.820 qmin 20.380 20.264 20.140 qmax 63.284 65.624 63.723 amean 39.990 41.549 41.139 amin 38.571 40.158 40.154 amax 42.015 43.056 42.068 emean 0.453 0.499 0.495 emin 0.338 0.470 0.470 emax 0.508 0.524 0.515 imean 33.340 32.064 31.968 imin 31.451 31.412 31.398 imax 37.444 33.481 33.481 excite_mean 0.714 0.728 0.725 fracstop 0.171 0.074 0.076 cjmean 2.475 2.459 2.464 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 196.5 159.4 160.2 kozaiamp 53.5 24.1 26.8