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: 05JK186 # Created Mon Apr 28 01:08:54 2025 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 21 observations of 21 # Arc: 7.00y # First observation: 2005/05/12 # Last observation: 2012/05/12 # Chi-squared of fit: 16.83 DOF: 36 RMS: 0.16 # Min/Max residuals: -0.40 0.30 # Exact a, adot, b, bdot, g, gdot: 1.551835E-05 2.638630E-02 -8.634621E-06 -1.356146E-02 2.693923E-02 -4.355799E-03 # Covariance matrix: 2.4662E-13 -5.5853E-14 -3.7123E-15 5.7918E-15 8.2347E-14 -7.4966E-14 -5.5853E-14 8.3993E-14 1.9282E-14 -3.8893E-14 5.5554E-14 4.8333E-13 -3.7123E-15 1.9282E-14 2.0270E-13 -5.1200E-14 1.5872E-14 1.3111E-13 5.7918E-15 -3.8893E-14 -5.1200E-14 3.4158E-14 -3.5498E-14 -2.6551E-13 8.2347E-14 5.5554E-14 1.5872E-14 -3.5498E-14 2.3668E-13 4.3500E-13 -7.4966E-14 4.8333E-13 1.3111E-13 -2.6551E-13 4.3500E-13 3.2978E-12 # lat0 lon0 xBary yBary zBary JD0 -1.174311 -114.265638 0.240578 -0.019967 -0.977857 2453502.955713 # Heliocentric elements and errors Epoch: 2453502.5000 = 2005/05/12 Mean Anomaly: 331.87345 +/- 0.008 Argument of Peri: 228.42280 +/- 0.014 Long of Asc Node: 63.14181 +/- 0.000 Inclination: 27.21815 +/- 0.000 Eccentricity: 0.24560552 +/- 0.0001 Semi-Major Axis: 47.47537203 +/- 0.0046 Time of Perihelion: 2462837.5147 +/- 16.4 Perihelion: 35.81515871 +/- 0.0049 Aphelion: 59.13558535 +/- 0.0068 Period (y) 327.1228 +/- 0.05 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -15.87719247 +/- 0.0003 Ecliptic Y -34.62752010 +/- 0.0006 Ecliptic Z -0.76104134 +/- 0.0000 Ecliptic XDOT 0.00263891 +/- 0.0000 Ecliptic YDOT -0.00067990 +/- 0.0000 Ecliptic ZDOT -0.00136885 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 38.10166625 +/- 0.0006 Geocenter to KBO 37.12070560 +/- 0.0007 # Hcoef: 6.59
The following table shows the complete astrometric record for 05JK186. 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 (05JK186) followed by the observatory code and reference code for the source of the astrometry.
2005 05 12.45497 16 14 26.51 -22 25 04.7 23.1g 05JK186 568 C~0X5g 2005 05 12.48126 16 14 26.36 -22 25 04.5 23.2g 05JK186 568 C~0X5g 2005 05 12.51255 16 14 26.19 -22 25 04.5 23.4g 05JK186 568 C~0X5g 2005 05 13.53618 16 14 20.49 -22 24 58.6 22.7g 05JK186 568 C~0X5g 2005 07 31.25523 16 08 18.13 -22 18 35.1 21.6i 05JK186 568 C~0X5g 2005 07 31.29997 16 08 18.04 -22 18 35.2 21.6i 05JK186 568 C~0X5g 2005 07 31.34422 16 08 17.95 -22 18 35.2 21.9i 05JK186 568 C~0X5g 2008 05 07.51136 16 33 05.97 -25 29 32.0 05JK186 568 C~0X5g 2008 05 07.53455 16 33 05.83 -25 29 31.9 22.1r 05JK186 568 C~0X5g 2009 06 20.26392 16 35 14.63 -26 27 59.0 05JK186 695 C~0X5g 2009 06 22.26600 16 35 03.41 -26 27 47.9 05JK186 695 C~0X5g 2009 07 24.17184 16 32 37.93 -26 24 55.6 05JK186 675 C~0X5g 2009 07 24.20995 16 32 37.80 -26 24 55.7 05JK186 675 C~0X5g 2009 07 25.19530 16 32 34.62 -26 24 51.2 05JK186 675 C~0X5g 2009 08 19.16695 16 31 47.49 -26 23 46.2 22.2r 05JK186 675 C~0X5g 2010 03 20.45055 16 48 42.81 -27 22 41.4 05JK186 675 C~0X5g 2010 03 20.52930 16 48 42.76 -27 22 42.8 05JK186 675 C~0X5g 2010 03 20.53277 16 48 42.76 -27 22 42.9 05JK186 675 C~0X5g 2011 05 24.47475 16 51 09.916 -28 29 28.17 22.5G 05JK186 F51 C~2rXj 2011 05 30.41031 16 50 33.804 -28 29 28.67 21.5G 05JK186 F51 C~2rXj 2012 05 12.50445 16 59 07.277 -29 27 24.73 22.8G 05JK186 F51 C~2rXj
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 0.02 0.00 0.14
2 0.0001 0.00 -0.00 0.00 0.19
3 0.0002 0.00 0.09 0.00 0.02
4 0.0030 0.00 -0.05 0.00 0.19
5 0.2185 0.00 0.02 0.00 -0.05
6 0.2186 0.00 0.01 0.00 -0.13
7 0.2187 0.00 -0.02 0.00 -0.11
8 2.9871 0.00 0.24 0.00 -0.20
9 2.9872 0.00 0.05 0.00 -0.11
10 4.1063 0.00 -0.40 0.00 -0.29
11 4.1117 0.00 -0.37 0.00 -0.01
12 4.1991 0.00 -0.02 0.00 0.10
13 4.1992 0.00 -0.04 0.00 -0.18
14 4.2019 0.00 0.06 0.00 -0.07
15 4.2703 0.00 0.21 0.00 -0.10
16 4.8542 0.00 -0.26 0.00 0.30
17 4.8544 0.00 0.04 0.00 0.06
18 4.8544 0.00 0.09 0.00 0.01
19 6.0315 0.00 -0.07 0.00 0.14
20 6.0478 0.00 0.03 0.00 0.05
21 7.0008 0.00 0.30 0.00 0.05
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.
05JK186 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 47.034 47.034 47.034 ecceobj 0.242 0.242 0.242 incobj 27.322 27.322 27.322 qmin 34.827 34.832 34.824 qmax 60.679 60.495 60.574 amean 47.390 47.384 47.390 amin 46.944 46.928 46.944 amax 48.008 47.978 48.005 emean 0.242 0.241 0.242 emin 0.220 0.218 0.220 emax 0.265 0.262 0.264 imean 26.000 26.030 26.007 imin 25.401 25.437 25.403 imax 26.682 26.690 26.719 excite_mean 0.501 0.501 0.501 fracstop 1.000 1.000 1.000 cjmean 2.824 2.824 2.824 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 183.2 181.1 183.0 kozaiamp 180.0 179.9 179.9