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: 22LA17
# Created Wed Nov 27 02:11:11 2024
# Orbit generated from Bernstein formalism
# Fitting 9 observations of 9
# Arc: 27.14d
# First observation: 2022/06/03
# Last observation: 2022/06/30
Preliminary a, adot, b, bdot, g, gdot:
-0.000000 0.026090 -0.000000 -0.000798 0.024735 0.000000
# WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution
# WARNING Fitting with energy constraint
# Chi-squared of fit: 0.21 DOF: 13 RMS: 0.03
# Min/Max residuals: -0.05 0.05
# Exact a, adot, b, bdot, g, gdot:
1.533672E-05 2.354502E-02 -5.388141E-07 -7.739612E-04 2.420511E-02 1.667861E-03
# Covariance matrix:
1.1628E-11 1.7393E-08 -1.3016E-13 -1.5287E-10 3.2144E-09 1.0755E-07
1.7393E-08 2.7185E-05 -2.0311E-10 -2.3862E-07 5.0142E-06 1.6252E-04
-1.3016E-13 -2.0311E-10 4.8524E-13 -4.9002E-12 -3.7570E-11 -1.2882E-09
-1.5287E-10 -2.3862E-07 -4.9002E-12 2.2362E-09 -4.4107E-08 -1.4918E-06
3.2144E-09 5.0142E-06 -3.7570E-11 -4.4107E-08 9.2819E-07 3.2269E-05
1.0755E-07 1.6252E-04 -1.2882E-09 -1.4918E-06 3.2269E-05 2.5492E-03
# lat0 lon0 xBary yBary zBary JD0
1.188897 -72.630182 0.587205 0.016913 -0.827937 2459733.941661
# Heliocentric elements and errors
Epoch: 2459730.5000 = 2022/05/31
Mean Anomaly: 67.17142 +/- 294.569
Argument of Peri: 74.53136 +/- 94.897
Long of Asc Node: 138.65116 +/- 5.195
Inclination: 2.19421 +/- 0.321
Eccentricity: 0.05716905 +/- 2.1591
Semi-Major Axis: 42.97971839 +/- 22.8089
Time of Perihelion: 2440527.2032 +/- 82813.8
Perihelion: 40.52260878 +/- 95.2560
Aphelion: 45.43682801 +/- 95.8784
Period (y) 281.7757 +/- 224.30
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 12.02739934 +/- 0.4907
Ecliptic Y -40.38857528 +/- 1.5691
Ecliptic Z 0.85725590 +/- 0.0341
Ecliptic XDOT 0.00260032 +/- 0.0020
Ecliptic YDOT 0.00062232 +/- 0.0054
Ecliptic ZDOT -0.00008372 +/- 0.0001
# Distances at JD0 (AU)
Heliocenter to KBO 42.15009176 +/- 1.5100
Geocenter to KBO 41.31358361 +/- 1.6444
# Hcoef: 9.89
The following table shows the complete astrometric record for 22LA17. 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 (22LA17) followed by the observatory code and reference code for the source of the astrometry.
2022 06 03.44086 19 14 38.997 -21 07 55.54 26.1r 22LA17 266 C~6Ipc 2022 06 03.52767 19 14 38.645 -21 07 56.13 26.1r 22LA17 266 C~6Ipc 2022 06 03.61505 19 14 38.290 -21 07 56.69 26.1r 22LA17 266 C~6Ipc 2022 06 29.45230 19 12 40.315 -21 11 19.89 26.0r 22LA17 266 C~6Ipc 2022 06 29.51813 19 12 39.981 -21 11 20.47 26.0r 22LA17 266 C~6Ipc 2022 06 29.58257 19 12 39.656 -21 11 21.02 26.0r 22LA17 266 C~6Ipc 2022 06 30.45132 19 12 35.326 -21 11 28.67 26.0r 22LA17 266 C~6Ipc 2022 06 30.51894 19 12 34.982 -21 11 29.27 26.0r 22LA17 266 C~6Ipc 2022 06 30.58528 19 12 34.646 -21 11 29.84 26.0r 22LA17 266 C~6Ipc
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 0.01 0.00 0.01
2 0.0002 -4.96 -0.00 0.04 -0.00
3 0.0005 -9.96 -0.01 0.12 0.00
4 0.0712 -1672.75 -0.00 6.07 -0.05
5 0.0714 -1677.46 -0.00 6.08 -0.05
6 0.0716 -1682.03 0.01 6.10 -0.04
7 0.0740 -1743.08 -0.01 6.02 0.05
8 0.0741 -1747.93 -0.01 6.03 0.04
9 0.0743 -1752.66 0.01 6.04 0.05
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.
22LA17 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