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: 22HK5 # Created Wed May 8 01:18:50 2024 # Orbit generated from Bernstein formalism # Fitting 10 observations of 10 # Arc: 4.06d # First observation: 2022/04/22 # Last observation: 2022/04/26 # WARNING Fitting with energy constraint # WARNING and with gdot fixed = 0 # WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution # Chi-squared of fit: 10.73 DOF: 16 RMS: 0.18 # Min/Max residuals: -0.44 0.28 # Exact a, adot, b, bdot, g, gdot: 1.755838E-05 3.816077E-02 -1.576366E-06 -1.691420E-03 3.298642E-02 0.000000E+00 # Covariance matrix: 4.5500E-11 9.3428E-08 1.5161E-13 3.0411E-10 1.5100E-08 0.0000E+00 9.3428E-08 1.9299E-04 3.1308E-10 6.2800E-07 3.1182E-05 0.0000E+00 1.5161E-13 3.1308E-10 2.4371E-13 -2.6843E-11 5.0586E-11 0.0000E+00 3.0411E-10 6.2800E-07 -2.6843E-11 1.0107E-08 1.0147E-07 0.0000E+00 1.5100E-08 3.1182E-05 5.0586E-11 1.0147E-07 5.0383E-06 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 4.7231E-04 # lat0 lon0 xBary yBary zBary JD0 1.322686 -155.355539 -0.116109 0.022995 -1.004447 2459691.567181 # Heliocentric elements and errors Epoch: 2459690.5000 = 2022/04/21 Mean Anomaly: 1.94322 +/- 160.666 Argument of Peri: 151.11527 +/- 226.879 Long of Asc Node: 51.52835 +/- 9.022 Inclination: 2.85191 +/- 0.898 Eccentricity: 0.05894713 +/- 0.5569 Semi-Major Axis: 33.27319394 +/- 17.4977 Time of Perihelion: 2459312.0924 +/- 101389.9 Perihelion: 31.31183473 +/- 24.7878 Aphelion: 35.23455316 +/- 26.2036 Period (y) 191.9331 +/- 151.40 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -28.40247648 +/- 1.8745 Ecliptic Y -13.16513952 +/- 0.8598 Ecliptic Z 0.69973983 +/- 0.0476 Ecliptic XDOT 0.00132002 +/- 0.0017 Ecliptic YDOT -0.00287134 +/- 0.0011 Ecliptic ZDOT -0.00014047 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 31.31311554 +/- 1.7383 Geocenter to KBO 30.31550776 +/- 2.0629 # Hcoef: 8.37
The following table shows the complete astrometric record for 22HK5. 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 (22HK5) followed by the observatory code and reference code for the source of the astrometry.
2022 04 22.06638 13 33 16.11 -08 19 00.2 23.1R 22HK5 W93 C~5bqy 2022 04 22.08778 13 33 15.97 -08 18 59.6 22.7R 22HK5 W93 C~5bqy 2022 04 22.10890 13 33 15.86 -08 18 58.9 22.9R 22HK5 W93 C~5bqy 2022 04 22.13017 13 33 15.71 -08 18 58.0 23.2R 22HK5 W93 C~5bqy 2022 04 22.14969 13 33 15.56 -08 18 57.8 22.8R 22HK5 W93 C~5bqy 2022 04 24.06779 13 33 04.22 -08 17 54.0 23.0R 22HK5 W93 C~5bqy 2022 04 24.08911 13 33 04.10 -08 17 53.1 22.8R 22HK5 W93 C~5bqy 2022 04 24.13133 13 33 03.86 -08 17 51.8 22.6R 22HK5 W93 C~5bqy 2022 04 26.08035 13 32 52.38 -08 16 47.6 22HK5 W93 C~5bqy 2022 04 26.12736 13 32 52.09 -08 16 46.5 23.2R 22HK5 W93 C~5bqy
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 0.15 0.00 0.16 2 0.0001 -2.15 0.04 -0.20 -0.00 3 0.0001 -3.93 0.28 -0.15 0.09 4 0.0002 -6.33 -0.09 -0.12 0.15 5 0.0002 -8.48 -0.36 -0.75 -0.44 6 0.0055 -188.46 -0.12 -2.87 -0.13 7 0.0055 -190.45 -0.09 -2.69 0.10 8 0.0057 -194.24 0.14 -2.78 0.09 9 0.0110 -376.32 0.01 -5.31 0.22 10 0.0111 -380.73 0.03 -5.86 -0.24
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.
22HK5 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