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: 15KV190 # Created Wed Nov 27 02:10:22 2024 # Orbit generated from Bernstein formalism # Fitting 5 observations of 5 # Arc: 25.10d # First observation: 2015/05/18 # Last observation: 2015/06/12 Preliminary a, adot, b, bdot, g, gdot: 0.000001 0.015404 0.000000 -0.000448 0.017898 0.000000 # WARNING Fitting with energy constraint # Chi-squared of fit: 1.65 DOF: 5 RMS: 0.10 # Min/Max residuals: -0.13 0.18 # Exact a, adot, b, bdot, g, gdot: 1.244708E-05 1.316719E-02 -4.175782E-07 -7.069853E-04 1.755491E-02 6.545604E-03 # Covariance matrix: 2.4397E-11 2.6061E-08 2.2108E-12 2.9591E-09 4.4365E-09 -3.7154E-08 2.6061E-08 2.8413E-05 2.4096E-09 3.2252E-06 4.8353E-06 -4.0624E-05 2.2108E-12 2.4096E-09 6.8420E-13 2.6640E-10 4.1007E-10 -3.4469E-09 2.9591E-09 3.2252E-06 2.6640E-10 3.6637E-07 5.4886E-07 -4.6205E-06 4.4365E-09 4.8353E-06 4.1007E-10 5.4886E-07 8.2295E-07 -6.8480E-06 -3.7154E-08 -4.0624E-05 -3.4469E-09 -4.6205E-06 -6.8480E-06 1.2224E-04 # lat0 lon0 xBary yBary zBary JD0 19.856848 -130.261559 -0.128179 0.340297 -0.941988 2457160.836278 # Heliocentric elements and errors Epoch: 2457160.5000 = 2015/05/18 Mean Anomaly: 59.77007 +/- 63.101 Argument of Peri: 345.82170 +/- 42.235 Long of Asc Node: 130.92867 +/- 10.669 Inclination: 19.74123 +/- 0.551 Eccentricity: 0.44979434 +/- 0.7217 Semi-Major Axis: 60.04654117 +/- 31.1766 Time of Perihelion: 2428943.4446 +/- 20112.0 Perihelion: 33.03794656 +/- 46.6082 Aphelion: 87.05513579 +/- 62.6186 Period (y) 465.3077 +/- 362.39 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -35.17807747 +/- 1.7895 Ecliptic Y -41.73247290 +/- 2.1126 Ecliptic Z 19.34910919 +/- 0.9999 Ecliptic XDOT 0.00091951 +/- 0.0015 Ecliptic YDOT -0.00209456 +/- 0.0010 Ecliptic ZDOT 0.00024312 +/- 0.0005 # Distances at JD0 (AU) Heliocenter to KBO 57.90927780 +/- 1.9003 Geocenter to KBO 56.96413479 +/- 2.9437 # Hcoef: 7.97
The following table shows the complete astrometric record for 15KV190. 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 (15KV190) followed by the observatory code and reference code for the source of the astrometry.
2015 05 18.33550 15 30 12.139 +01 29 53.45 25.5r 15KV190 568 C~4451 2015 05 18.41907 15 30 11.851 +01 29 54.57 15KV190 568 C~4451 2015 05 18.50510 15 30 11.549 +01 29 55.19 15KV190 568 C~4451 2015 06 11.33340 15 28 51.329 +01 32 26.12 15KV190 568 C~4451 2015 06 12.43530 15 28 47.918 +01 32 27.43 15KV190 568 C~4451
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 -0.05
2 0.0002 -4.46 -0.02 -0.03 0.18
3 0.0005 -9.00 0.14 -0.59 -0.13
4 0.0657 -1210.26 -0.08 -163.98 -0.06
5 0.0687 -1260.03 0.07 -175.86 0.06
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.
15KV190 quality flag:0 Type: ERR2LARGE ERR2LARGE ERR2LARGE axisobj 0.000 0.000 0.000 ecceobj -1.000 -1.000 -1.000 incobj -1.000 -1.000 -1.000 qmin 0.000 0.000 0.000 qmax 0.000 0.000 0.000 amean 0.000 0.000 0.000 amin 0.000 0.000 0.000 amax 0.000 0.000 0.000 emean 0.000 0.000 0.000 emin 0.000 0.000 0.000 emax 0.000 0.000 0.000 imean 0.000 0.000 0.000 imin 0.000 0.000 0.000 imax 0.000 0.000 0.000 excite_mean 0.000 0.000 0.000 fracstop 0.000 0.000 0.000 cjmean 0.000 0.000 0.000 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 0.0 0.0 0.0 kozaiamp 0.0 0.0 0.0