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: 23PN5 # Created Mon Apr 28 01:11:34 2025 # Orbit generated from Bernstein formalism # Fitting 4 observations of 4 # Arc: 32.77d # First observation: 2023/08/13 # Last observation: 2023/09/15 Preliminary a, adot, b, bdot, g, gdot: -0.000000 0.015343 0.000000 0.006434 0.018875 0.000000 # WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution # WARNING Fitting with energy constraint # Chi-squared of fit: 0.03 DOF: 3 RMS: 0.02 # Min/Max residuals: -0.03 0.02 # Exact a, adot, b, bdot, g, gdot: 1.112579E-05 1.315863E-02 5.627245E-06 6.482067E-03 1.850169E-02 -5.888998E-03 # Covariance matrix: 5.2421E-12 4.9846E-09 -1.5861E-14 -1.6124E-11 1.0775E-09 4.3361E-09 4.9846E-09 5.5170E-06 -1.7574E-11 -1.7920E-08 1.1903E-06 4.6124E-06 -1.5861E-14 -1.7574E-11 7.2343E-13 -8.1267E-12 -3.7491E-12 1.6362E-11 -1.6124E-11 -1.7920E-08 -8.1267E-12 2.8486E-10 -3.7789E-09 4.8613E-08 1.0775E-09 1.1903E-06 -3.7491E-12 -3.7789E-09 2.5704E-07 1.1473E-06 4.3361E-09 4.6124E-06 1.6362E-11 4.8613E-08 1.1473E-06 1.1439E-04 # lat0 lon0 xBary yBary zBary JD0 -0.275188 -63.965728 -0.402545 -0.004709 -0.924078 2460169.781211 # Heliocentric elements and errors Epoch: 2460160.5000 = 2023/08/04 Mean Anomaly: 294.19513 +/- 75.793 Argument of Peri: 108.23375 +/- 39.418 Long of Asc Node: 297.01362 +/- 0.109 Inclination: 26.14749 +/- 4.038 Eccentricity: 0.36992046 +/- 0.6131 Semi-Major Axis: 56.08144412 +/- 29.3928 Time of Perihelion: 2488200.8070 +/- 23603.3 Perihelion: 35.33577039 +/- 39.0542 Aphelion: 76.82711785 +/- 52.9489 Period (y) 419.9881 +/- 330.18 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 24.49875012 +/- 0.6500 Ecliptic Y -49.21584795 +/- 1.3308 Ecliptic Z -0.25923290 +/- 0.0071 Ecliptic XDOT 0.00136576 +/- 0.0008 Ecliptic YDOT 0.00164167 +/- 0.0014 Ecliptic ZDOT 0.00096339 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 54.97686467 +/- 1.2261 Geocenter to KBO 54.04912977 +/- 1.4811 # Hcoef: 7.30
The following table shows the complete astrometric record for 23PN5. 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 (23PN5) followed by the observatory code and reference code for the source of the astrometry.
2023 08 13.28041 19 52 20.712 -21 12 42.76 24.7r 23PN5 T09 C~8nlW 2023 08 13.41910 19 52 20.190 -21 12 43.56 24.6r 23PN5 T09 C~8nlW 2023 09 14.05302 19 50 46.424 -21 14 48.09 24.6r 23PN5 269 C~8nlW 2023 09 15.04943 19 50 44.372 -21 14 49.58 24.7r 23PN5 269 C~8nlW
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 -0.02
2 0.0004 -7.32 -0.03 0.58 0.02
3 0.0870 -1318.66 0.00 122.15 0.01
4 0.0897 -1347.13 -0.00 125.98 -0.01
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.
23PN5 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