Orbit Fit and Astrometric record for 22LX16

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: 22LX16    
# Created Tue Apr  1 01:11:30 2025
# Orbit generated from Bernstein formalism
# Fitting     15 observations of     15
# Arc:   1.27y
# First observation: 2022/06/03
#  Last observation: 2023/09/10
Preliminary a, adot, b, bdot, g, gdot:
   0.000000   0.020061   0.000001   0.001512   0.021844   0.000000
# Chi-squared of fit:     0.02 DOF:     24 RMS:  0.01
# Min/Max residuals:    -0.01    0.01
# Exact a, adot, b, bdot, g, gdot:
  1.444087E-05  1.991563E-02  1.110685E-06  1.524770E-03  2.175341E-02  1.661231E-03
# Covariance matrix:
  4.9378E-13  1.3604E-12 -7.6921E-16 -4.1932E-14  1.3960E-12 -2.6932E-11
  1.3604E-12  6.8284E-10  9.5534E-12 -2.2230E-10 -3.2310E-11 -1.1879E-07
 -7.6921E-16  9.5534E-12  3.1094E-13 -3.2887E-12 -5.5411E-13 -1.6789E-09
 -4.1932E-14 -2.2230E-10 -3.2887E-12  7.3314E-11  1.2615E-11  3.9022E-08
  1.3960E-12 -3.2310E-11 -5.5411E-13  1.2615E-11  8.3701E-12  6.7197E-09
 -2.6932E-11 -1.1879E-07 -1.6789E-09  3.9022E-08  6.7197E-09  2.0849E-05
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.920641  -72.770811    0.585171    0.013060   -0.829446  2459733.941661
# Heliocentric elements and errors
Epoch:              2459730.5000  =  2022/05/31
Mean Anomaly:           78.13403 +/-    11.365
Argument of Peri:      285.80224 +/-    11.516
Long of Asc Node:      274.87901 +/-     0.056
Inclination:             4.47174 +/-     0.021
Eccentricity:         0.06795145 +/-    0.2288
Semi-Major Axis:     47.25426861 +/-    1.6094
Time of Perihelion: 2433979.2845 +/-    3507.0
Perihelion:          44.04327244 +/-   10.9163
Aphelion:            50.46526478 +/-   10.9485
Period (y)              324.8402 +/-     16.60
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           13.31065909 +/-    0.0018
Ecliptic Y          -44.86882432 +/-    0.0058
Ecliptic Z            0.73874828 +/-    0.0001
Ecliptic XDOT         0.00245681 +/-    0.0002
Ecliptic YDOT         0.00055470 +/-    0.0005
Ecliptic ZDOT         0.00019513 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   46.80737965 +/-    0.0056
Geocenter to KBO     45.96980353 +/-    0.0061
# Hcoef:  7.70

The following table shows the complete astrometric record for 22LX16. 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 (22LX16) followed by the observatory code and reference code for the source of the astrometry.

2022 06  03.44086  19 14 11.847  -21 24 57.70  24.3r 22LX16    266  C~6Ipc      
2022 06  03.52767  19 14 11.524  -21 24 58.14  24.3r 22LX16    266  C~6Ipc      
2022 06  03.61505  19 14 11.199  -21 24 58.56  24.3r 22LX16    266  C~6Ipc      
2022 06  29.45230  19 12 23.325  -21 27 33.91  24.2r 22LX16    266  C~6Ipc      
2022 06  29.51813  19 12 23.020  -21 27 34.35  24.2r 22LX16    266  C~6Ipc      
2022 06  29.58257  19 12 22.723  -21 27 34.78  24.2r 22LX16    266  C~6Ipc      
2022 06  30.45132  19 12 18.774  -21 27 40.76  24.4r 22LX16    266  C~6Ipc      
2022 06  30.51894  19 12 18.461  -21 27 41.22  24.4r 22LX16    266  C~6Ipc      
2022 06  30.58528  19 12 18.154  -21 27 41.66  24.4r 22LX16    266  C~6Ipc      
2023 09  09.22891  19 12 40.763  -21 21 22.25        22LX16    266  C~8ecH      
2023 09  09.32430  19 12 40.574  -21 21 22.59        22LX16    266  C~8ecH      
2023 09  09.41985  19 12 40.387  -21 21 22.91        22LX16    266  C~8ecH      
2023 09  10.22905  19 12 38.893  -21 21 25.82        22LX16    266  C~8ecH      
2023 09  10.32490  19 12 38.710  -21 21 26.16        22LX16    266  C~8ecH      
2023 09  10.42059  19 12 38.531  -21 21 26.47        22LX16    266  C~8ecH      

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    -0.00
     2   0.0002     -4.53    -0.00       0.13    -0.00
     3   0.0005     -9.08    -0.00       0.29    -0.00
     4   0.0712  -1522.87    -0.01      34.61     0.01
     5   0.0714  -1527.15    -0.01      34.70     0.01
     6   0.0716  -1531.32    -0.00      34.79     0.01
     7   0.0740  -1586.77    -0.00      35.67    -0.01
     8   0.0741  -1591.16     0.01      35.75    -0.01
     9   0.0743  -1595.47     0.01      35.85    -0.01
    10   1.2670  -1235.16    -0.00     373.24    -0.01
    11   1.2673  -1237.82     0.00     373.23    -0.01
    12   1.2676  -1240.45     0.01     373.23    -0.00
    13   1.2698  -1261.52    -0.00     372.94     0.01
    14   1.2700  -1264.10    -0.01     372.92     0.00
    15   1.2703  -1266.62     0.00     372.92     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.

22LX16    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