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: 23HA36 # Created Wed Dec 25 02:11:20 2024 # Orbit generated from Bernstein formalism # Fitting 6 observations of 6 # Arc: 0.88y # First observation: 2023/04/22 # Last observation: 2024/03/08 Preliminary a, adot, b, bdot, g, gdot: -0.000001 0.017480 0.000002 -0.004013 0.020973 0.000000 # Chi-squared of fit: 1.55 DOF: 6 RMS: 0.09 # Min/Max residuals: -0.15 0.15 # Exact a, adot, b, bdot, g, gdot: 1.227862E-05 1.725419E-02 -3.007587E-06 -3.986216E-03 2.100292E-02 1.790984E-03 # Covariance matrix: 7.4696E-13 1.1972E-11 6.0949E-14 -2.4447E-12 9.0471E-12 6.7771E-10 1.1972E-11 1.5445E-08 6.5632E-11 -2.5201E-09 6.1952E-09 6.9461E-07 6.0949E-14 6.5632E-11 6.7735E-13 -1.1203E-11 2.6425E-11 2.9548E-09 -2.4447E-12 -2.5201E-09 -1.1203E-11 4.1326E-10 -1.0159E-09 -1.1349E-07 9.0471E-12 6.1952E-09 2.6425E-11 -1.0159E-09 2.5338E-09 2.8006E-07 6.7771E-10 6.9461E-07 2.9548E-09 -1.1349E-07 2.8006E-07 3.1284E-05 # lat0 lon0 xBary yBary zBary JD0 -0.291250 158.852979 -0.801521 -0.003371 -0.619554 2460056.570111 # Heliocentric elements and errors Epoch: 2460050.5000 = 2023/04/16 Mean Anomaly: 130.36580 +/- 74.675 Argument of Peri: 37.71009 +/- 71.769 Long of Asc Node: 338.56199 +/- 0.007 Inclination: 13.07140 +/- 0.043 Eccentricity: 0.17378241 +/- 0.1641 Semi-Major Axis: 42.77955930 +/- 2.2817 Time of Perihelion: 2423040.9276 +/- 20991.8 Perihelion: 35.34522448 +/- 7.2671 Aphelion: 50.21389412 +/- 7.5119 Period (y) 279.8096 +/- 22.39 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -45.26386196 +/- 0.1064 Ecliptic Y 16.65285604 +/- 0.0412 Ecliptic Z -0.24216134 +/- 0.0006 Ecliptic XDOT -0.00102893 +/- 0.0007 Ecliptic YDOT -0.00200590 +/- 0.0003 Ecliptic ZDOT -0.00052083 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 48.23062778 +/- 0.1009 Geocenter to KBO 47.61242772 +/- 0.1141 # Hcoef: 6.48
The following table shows the complete astrometric record for 23HA36. 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 (23HA36) followed by the observatory code and reference code for the source of the astrometry.
2023 04 22.06931 10 41 24.090 +07 58 50.07 23.3r 23HA36 304 C~7xZt 2023 04 22.16273 10 41 23.849 +07 58 51.26 23.3r 23HA36 304 C~7xZt 2023 05 15.10295 10 40 49.022 +08 01 33.10 23.2r 23HA36 304 C~7xZt 2023 05 16.08428 10 40 48.367 +08 01 34.88 23.3r 23HA36 304 C~7xZt 2024 03 07.27368 10 47 19.680 +07 09 51.78 23.2r 23HA36 304 C~7xZt 2024 03 08.26799 10 47 15.587 +07 10 14.29 23.3r 23HA36 304 C~7xZt
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 0.00
2 0.0003 -3.77 -0.15 -0.24 -0.02
3 0.0631 -544.05 0.13 -43.88 0.09
4 0.0657 -553.74 -0.13 -45.87 -0.08
5 0.8767 6006.00 -0.06 -733.40 0.00
6 0.8794 5941.04 0.06 -735.57 -0.00
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.
23HA36 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