Orbit Fit and Astrometric record for 16LE106

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: 16LE106   
# Created Sun Dec 22 02:10:43 2024
# Orbit generated from Bernstein formalism
# Fitting     21 observations of     21
# Arc:  81.92d
# First observation: 2016/03/16
#  Last observation: 2016/06/06
Preliminary a, adot, b, bdot, g, gdot:
  -0.000020   0.028326  -0.000009  -0.000821   0.025511   0.000000
# Chi-squared of fit:    12.83 DOF:     36 RMS:  0.14
# Min/Max residuals:    -0.22    0.43
# Exact a, adot, b, bdot, g, gdot:
  1.517270E-05  2.308646E-02  1.598803E-07 -9.869612E-04  2.470799E-02  4.939663E-03
# Covariance matrix:
  1.8643E-13  3.1829E-12 -9.9402E-15  9.9543E-14  1.0337E-12  7.1426E-11
  3.1829E-12  7.6799E-09 -1.6397E-11  2.4220E-10  1.2430E-09 -2.3579E-08
 -9.9402E-15 -1.6397E-11  1.8369E-13 -1.2740E-12 -2.6732E-12  4.6848E-11
  9.9543E-14  2.4220E-10 -1.2740E-12  1.4975E-11  3.8963E-11 -8.0225E-10
  1.0337E-12  1.2430E-09 -2.6732E-12  3.8963E-11  2.0573E-10 -2.8979E-09
  7.1426E-11 -2.3579E-08  4.6848E-11 -8.0225E-10 -2.8979E-09  2.6727E-07
#      lat0       lon0       xBary       yBary       zBary        JD0
   11.028926 -152.738834    0.515167    0.162161   -0.831258  2457463.963729
# Heliocentric elements and errors
Epoch:              2457460.5000  =  2016/03/13
Mean Anomaly:           89.54028 +/-     2.846
Argument of Peri:      349.64303 +/-     1.918
Long of Asc Node:      104.61883 +/-     0.078
Inclination:            11.03438 +/-     0.003
Eccentricity:         0.20117048 +/-    0.0199
Semi-Major Axis:     39.80133838 +/-    0.2759
Time of Perihelion: 2434648.6293 +/-     685.1
Perihelion:          31.79448412 +/-    0.8225
Aphelion:            47.80819264 +/-    0.8589
Period (y)              251.1046 +/-      2.61
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -36.30519283 +/-    0.0205
Ecliptic Y          -18.12849365 +/-    0.0106
Ecliptic Z            7.74264645 +/-    0.0045
Ecliptic XDOT         0.00067554 +/-    0.0001
Ecliptic YDOT        -0.00253668 +/-    0.0000
Ecliptic ZDOT        -0.00000262 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.31171604 +/-    0.0186
Geocenter to KBO     40.47274488 +/-    0.0235
# Hcoef:  8.33

The following table shows the complete astrometric record for 16LE106. 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 (16LE106) followed by the observatory code and reference code for the source of the astrometry.

2016 03  16.46294  13 56 59.47   -00 11 24.2   24.2z 16LE106   T09  C~89Tj      
2016 03  16.54079  13 56 59.18   -00 11 21.8   24.0z 16LE106   T09  C~89Tj      
2016 03  16.56535  13 56 59.10   -00 11 21.2   24.3z 16LE106   T09  C~89Tj      
2016 03  16.57367  13 56 59.07   -00 11 20.7   24.3z 16LE106   T09  C~89Tj      
2016 03  16.59799  13 56 58.97   -00 11 20.0   24.4z 16LE106   T09  C~89Tj      
2016 03  16.62402  13 56 58.88   -00 11 19.3   23.8z 16LE106   T09  C~89Tj      
2016 03  16.62672  13 56 58.87   -00 11 19.2   24.5z 16LE106   T09  C~89Tj      
2016 03  16.63751  13 56 58.84   -00 11 18.8   24.3z 16LE106   T09  C~89Tj      
2016 04  15.46969  13 54 51.58   +00 03 01.8   23.9y 16LE106   T09  C~89Tj      
2016 04  15.48536  13 54 51.51   +00 03 02.1   23.8y 16LE106   T09  C~89Tj      
2016 04  15.51502  13 54 51.38   +00 03 03.3   23.2y 16LE106   T09  C~89Tj      
2016 04  15.53131  13 54 51.29   +00 03 03.5   23.6y 16LE106   T09  C~89Tj      
2016 04  15.53940  13 54 51.25   +00 03 03.6   23.1y 16LE106   T09  C~89Tj      
2016 06  05.37292  13 51 20.29   +00 16 57.1   25.2r 16LE106   T09  C~89Tj      
2016 06  05.39496  13 51 20.23   +00 16 57.3   24.5r 16LE106   T09  C~89Tj      
2016 06  05.41197  13 51 20.17   +00 16 57.5   24.7r 16LE106   T09  C~89Tj      
2016 06  06.33364  13 51 17.40   +00 17 00.5   25.8g 16LE106   T09  C~89Tj      
2016 06  06.34225  13 51 17.38   +00 17 00.5   25.3g 16LE106   T09  C~89Tj      
2016 06  06.35147  13 51 17.36   +00 17 00.5   25.1g 16LE106   T09  C~89Tj      
2016 06  06.36850  13 51 17.33   +00 17 00.5   25.8g 16LE106   T09  C~89Tj      
2016 06  06.38765  13 51 17.25   +00 17 01.2   26.0g 16LE106   T09  C~89Tj      

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    -0.08       0.00    -0.16
     2   0.0002     -4.92    -0.11       0.71    -0.07
     3   0.0003     -6.25     0.10       0.84    -0.13
     4   0.0003     -6.85     0.02       1.15     0.11
     5   0.0004     -8.50    -0.10       1.28     0.04
     6   0.0004    -10.01     0.02       1.45     0.01
     7   0.0004    -10.19     0.02       1.49     0.03
     8   0.0005    -10.75     0.13       1.71     0.16
     9   0.0822  -2100.71    -0.04     131.72    -0.05
    10   0.0822  -2101.80     0.06     131.63    -0.14
    11   0.0823  -2104.04     0.05     132.06     0.30
    12   0.0823  -2105.38    -0.05     131.77     0.01
    13   0.0823  -2105.97    -0.04     131.65    -0.10
    14   0.2215  -5361.79     0.09    -207.68    -0.12
    15   0.2216  -5362.70     0.16    -207.81     0.03
    16   0.2216  -5363.62     0.01    -207.95     0.12
    17   0.2241  -5403.57    -0.22    -219.83    -0.14
    18   0.2242  -5403.85    -0.13    -219.94    -0.14
    19   0.2242  -5404.13    -0.01    -220.05    -0.12
    20   0.2242  -5404.55     0.32    -220.21    -0.06
    21   0.2243  -5405.92    -0.22    -219.98     0.43

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.

16LE106    quality flag:1

Type:           3:2E   REMOVED  SCATNEAR

axisobj        39.402    40.258    38.707
ecceobj         0.203     0.245     0.175
incobj         11.033    11.032    11.038
qmin           31.243    30.283    30.874
qmax           48.344    50.180    48.630
amean          39.456    39.545    37.486
amin           38.990    38.724    36.456
amax           39.991    40.373    40.329
emean           0.190     0.227     0.133
emin            0.170     0.213     0.085
emax            0.210     0.245     0.207
imean           9.660     9.569     9.381
imin            9.013     9.455     7.314
imax           10.338     9.696    11.012
excite_mean     0.253     0.281     0.211
fracstop        1.000     0.002     1.000
cjmean          2.979     2.962     2.985

libcent 0       180.1    -180.0    -180.0
libamp  0        97.6    -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       182.7     133.4     178.3
kozaiamp        180.0     179.7     180.0