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: 22UD146 # Created Fri May 3 01:19:03 2024 # Orbit generated from Bernstein formalism # Fitting 6 observations of 6 # Arc: 0.94y # First observation: 2022/10/29 # Last observation: 2023/10/07 Preliminary a, adot, b, bdot, g, gdot: 0.000000 0.012953 0.000001 -0.001681 0.017759 0.000000 # WARNING Fitting with energy constraint # Chi-squared of fit: 0.35 DOF: 7 RMS: 0.04 # Min/Max residuals: -0.05 0.05 # Exact a, adot, b, bdot, g, gdot: 1.157187E-05 1.287164E-02 -1.416620E-06 -1.675384E-03 1.780978E-02 -2.761737E-03 # Covariance matrix: 7.6886E-13 2.5950E-11 8.5705E-14 -2.5784E-12 8.4058E-12 1.5834E-09 2.5950E-11 2.3705E-08 7.5454E-11 -2.2382E-09 6.0898E-09 1.3737E-06 8.5705E-14 7.5454E-11 6.4363E-13 -7.5892E-12 1.9393E-11 4.3731E-09 -2.5784E-12 -2.2382E-09 -7.5892E-12 2.1272E-10 -5.7543E-10 -1.2972E-07 8.4058E-12 6.0898E-09 1.9393E-11 -5.7543E-10 1.5724E-09 3.5318E-07 1.5834E-09 1.3737E-06 4.3731E-09 -1.2972E-07 3.5318E-07 7.9620E-05 # lat0 lon0 xBary yBary zBary JD0 -0.398572 22.611523 -0.225959 -0.006871 -0.960214 2459881.783171 # Heliocentric elements and errors Epoch: 2459880.5000 = 2022/10/28 Mean Anomaly: 237.45641 +/- 102.071 Argument of Peri: 327.47245 +/- 88.765 Long of Asc Node: 199.81069 +/- 0.003 Inclination: 7.38774 +/- 0.005 Eccentricity: 0.27510681 +/- 0.3162 Semi-Major Axis: 47.96776129 +/- 8.5652 Time of Perihelion: 2501186.2674 +/- 32577.7 Perihelion: 34.77150368 +/- 16.3872 Aphelion: 61.16401890 +/- 18.6887 Period (y) 332.2251 +/- 88.98 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 52.64006290 +/- 0.1154 Ecliptic Y 22.16538605 +/- 0.0481 Ecliptic Z -0.39068488 +/- 0.0009 Ecliptic XDOT -0.00115449 +/- 0.0013 Ecliptic YDOT 0.00167177 +/- 0.0005 Ecliptic ZDOT -0.00025466 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 57.11771350 +/- 0.1080 Geocenter to KBO 56.14893152 +/- 0.1250 # Hcoef: 7.11
The following table shows the complete astrometric record for 22UD146. 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 (22UD146) followed by the observatory code and reference code for the source of the astrometry.
2022 10 29.28237 01 24 15.106 +08 25 37.73 24.5r 22UD146 568 C~7Bop 2022 10 29.48932 01 24 14.395 +08 25 33.47 24.5r 22UD146 568 C~7Bop 2022 11 28.09295 01 22 46.295 +08 16 26.81 24.7r 22UD146 304 C~7Bop 2022 11 29.04771 01 22 44.026 +08 16 12.59 24.6r 22UD146 304 C~7Bop 2023 10 06.26243 01 28 32.074 +08 45 05.67 24.5r 22UD146 304 C~7Bop 2023 10 07.17295 01 28 28.956 +08 44 46.39 24.7r 22UD146 304 C~7Bop
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 -0.03 0.00 -0.01
2 0.0006 -11.38 0.03 -0.04 0.05
3 0.0816 -1428.41 -0.01 -21.62 0.01
4 0.0842 -1464.96 0.01 -22.28 -0.05
5 0.9363 3973.46 -0.01 -324.82 -0.04
6 0.9388 3923.37 0.01 -325.71 0.04
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.
22UD146 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