Orbit Fit and Astrometric record for 06HT122

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: 06HT122   
# Created Sat Dec  4 02:10:30 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     49 observations of     49
# Arc:  11.33y
# First observation: 2006/04/26
#  Last observation: 2017/08/26
# Chi-squared of fit:    30.65 DOF:     92 RMS:  0.14
# Min/Max residuals:    -0.91    0.43
# Exact a, adot, b, bdot, g, gdot:
  1.594131E-05  2.678806E-02 -1.042677E-07  2.153051E-03  2.663150E-02  4.425846E-03
# Covariance matrix:
  2.1878E-13 -2.1882E-14  2.2343E-15 -6.9269E-17  5.2211E-14 -1.4819E-15
 -2.1882E-14  5.4440E-14  1.0209E-16  4.1397E-15  4.5438E-14  2.1010E-13
  2.2343E-15  1.0209E-16  1.8753E-13 -2.0145E-14  3.9235E-15  8.0663E-16
 -6.9269E-17  4.1397E-15 -2.0145E-14  2.9309E-15  3.7457E-15  1.6790E-14
  5.2211E-14  4.5438E-14  3.9235E-15  3.7457E-15  1.3187E-13  1.9359E-13
 -1.4819E-15  2.1010E-13  8.0663E-16  1.6790E-14  1.9359E-13  8.5251E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    5.675307 -138.260271    0.104377    0.098639   -0.991407  2453851.734594
# Heliocentric elements and errors
Epoch:              2453852.5000  =  2006/04/27
Mean Anomaly:           71.51412 +/-     0.009
Argument of Peri:      320.28568 +/-     0.012
Long of Asc Node:      171.56628 +/-     0.001
Inclination:             7.19893 +/-     0.000
Eccentricity:         0.16168135 +/-    0.0000
Semi-Major Axis:     39.58535411 +/-    0.0018
Time of Perihelion: 2435781.1941 +/-       2.6
Perihelion:          33.18514078 +/-    0.0020
Aphelion:            45.98556744 +/-    0.0025
Period (y)              249.0635 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -28.69725323 +/-    0.0004
Ecliptic Y          -25.46473281 +/-    0.0003
Ecliptic Z            3.71330344 +/-    0.0001
Ecliptic XDOT         0.00151572 +/-    0.0000
Ecliptic YDOT        -0.00234750 +/-    0.0000
Ecliptic ZDOT         0.00026523 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   38.54563684 +/-    0.0004
Geocenter to KBO     37.54946295 +/-    0.0005
# Hcoef:  7.60

The following table shows the complete astrometric record for 06HT122. 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 (06HT122) followed by the observatory code and reference code for the source of the astrometry.

2006 04  26.23384  14 44 17.83   -09 57 00.4   22.4R 06HT122   807  Cr3609      
2006 04  26.31833  14 44 17.40   -09 56 58.6         06HT122   807  Cr3609      
2006 04  28.09587  14 44 08.51   -09 56 12.9         06HT122   807  Cr3609      
2006 06  20.01100  14 40 12.41   -09 39 30.5   23.5R 06HT122   304  Cr4858      
2006 06  20.10534  14 40 12.10   -09 39 29.6         06HT122   304  Cr4858      
2006 08  21.03029  14 39 48.70   -09 45 17.5   22.3R 06HT122   807  Cs2782      
2006 08  22.02907  14 39 51.32   -09 45 37.9         06HT122   807  Cs2782      
2006 08  23.03145  14 39 54.06   -09 45 57.1         06HT122   807  Cs2782      
2014 05  30.38156  15 28 59.213  -12 12 12.73  23.5r 06HT122   568  C~2lRz      
2014 05  30.43011  15 28 58.982  -12 12 11.88  23.2r 06HT122   568  C~2lRz      
2014 05  30.43466  15 28 58.948  -12 12 11.61  22.9r 06HT122   568  C~2lRz      
2014 05  31.42022  15 28 54.201  -12 11 56.24  23.8r 06HT122   568  C~2lRz      
2014 06  01.30833  15 28 49.942  -12 11 42.27  23.6r 06HT122   568  C~2lRz      
2014 06  01.35165  15 28 49.731  -12 11 41.62  23.8r 06HT122   568  C~2lRz      
2014 06  01.39455  15 28 49.518  -12 11 40.92  23.4r 06HT122   568  C~2lRz      
2014 06  22.34880  15 27 18.247  -12 07 23.30  23.6r 06HT122   568  C~2lRz      
2014 07  19.32186  15 26 01.587  -12 05 46.54  23.5r 06HT122   568  C~2lRz      
2015 02  23.63194  15 40 10.270  -12 56 44.15  23.5r 06HT122   568  C~2lRz      
2015 03  19.59128  15 39 47.587  -12 51 13.42  23.6r 06HT122   568  C~2lRz      
2015 03  22.51359  15 39 41.060  -12 50 22.84  23.7r 06HT122   568  C~2lRz      
2015 04  12.50860  15 38 33.995  -12 43 37.99  23.8r 06HT122   568  C~2lRz      
2015 04  12.54955  15 38 33.833  -12 43 37.14  23.7r 06HT122   568  C~2lRz      
2015 04  18.53176  15 38 09.266  -12 41 33.65  23.6r 06HT122   568  C~2lRz      
2015 05  17.40428  15 35 51.479  -12 31 52.71  23.5r 06HT122   568  C~2lRz      
2015 05  17.44599  15 35 51.267  -12 31 51.86  23.5r 06HT122   568  C~2lRz      
2015 05  17.49805  15 35 51.004  -12 31 50.66  23.8r 06HT122   568  C~2lRz      
2015 05  24.38965  15 35 16.460  -12 29 47.62  23.9r 06HT122   568  C~2lRz      
2015 05  24.43575  15 35 16.226  -12 29 46.80  23.9r 06HT122   568  C~2lRz      
2015 05  24.47682  15 35 16.015  -12 29 46.15  23.5r 06HT122   568  C~2lRz      
2015 05  26.46493  15 35 06.131  -12 29 12.22  22.8r 06HT122   568  C~2lRz      
2015 06  18.36386  15 33 20.362  -12 24 00.09  23.7r 06HT122   568  C~2lRz      
2015 06  18.40481  15 33 20.196  -12 23 59.66  23.9r 06HT122   568  C~2lRz      
2015 06  21.37946  15 33 08.118  -12 23 31.01  23.8r 06HT122   568  C~2lRz      
2015 07  10.41516  15 32 04.454  -12 21 43.61  23.5r 06HT122   568  C~2lRz      
2015 07  18.33993  15 31 46.083  -12 21 39.59  23.7r 06HT122   568  C~2lRz      
2016 02  06.62104  15 45 25.525  -13 13 08.30  24.0w 06HT122   568  C~2lRz      
2016 02  12.60658  15 45 36.677  -13 12 39.74  23.9w 06HT122   568  C~2lRz      
2016 03  15.60417  15 45 34.087  -13 06 43.89  23.8w 06HT122   568  C~2lRz      
2016 03  15.61316  15 45 34.071  -13 06 43.80  23.9w 06HT122   568  C~2lRz      
2016 04  03.55069  15 44 46.548  -13 01 11.25  24.1w 06HT122   568  C~2lRz      
2016 04  08.60024  15 44 29.046  -12 59 33.44  24.0w 06HT122   568  C~2lRz      
2016 04  29.50143  15 43 00.608  -12 52 34.55  23.9w 06HT122   568  C~2lRz      
2016 05  04.47406  15 42 36.826  -12 50 56.06  23.9w 06HT122   568  C~2lRz      
2016 05  30.46201  15 40 27.653  -12 43 14.53  23.8w 06HT122   568  C~2lRz      
2016 07  04.29818  15 38 02.162  -12 37 24.32  23.8w 06HT122   568  C~2lRz      
2016 07  05.36646  15 37 58.813  -12 37 20.07  23.9w 06HT122   568  C~2lRz      
2017 03  30.57261  15 50 39.912  -13 16 41.98  23.9w 06HT122   568  C~2lRz      
2017 08  20.25685  15 42 43.045  -12 55 38.26  23.9w 06HT122   568  C~2lRz      
2017 08  26.26800  15 42 50.253  -12 56 59.56  24.2w 06HT122   568  C~2lRz      

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     0.27
     2   0.0002      0.00     0.06       0.00    -0.11
     3   0.0051      0.00    -0.06       0.00    -0.02
     4   0.1500      0.00     0.03       0.00     0.40
     5   0.1502      0.00    -0.04       0.00     0.43
     6   0.3198      0.00    -0.15       0.00    -0.35
     7   0.3225      0.00    -0.13       0.00    -0.91
     8   0.3253      0.00     0.14       0.00     0.20
     9   8.0935      0.00    -0.04       0.00    -0.03
    10   8.0936      0.00     0.09       0.00     0.04
    11   8.0936      0.00    -0.09       0.00     0.24
    12   8.0963      0.00     0.05       0.00    -0.07
    13   8.0988      0.00    -0.03       0.00    -0.01
    14   8.0989      0.00    -0.03       0.00    -0.03
    15   8.0990      0.00    -0.09       0.00     0.01
    16   8.1564      0.00    -0.02       0.00    -0.03
    17   8.2302      0.00    -0.01       0.00    -0.00
    18   8.8307      0.00     0.00       0.00    -0.04
    19   8.8963      0.00     0.13       0.00    -0.02
    20   8.9043      0.00    -0.02       0.00     0.00
    21   8.9617      0.00    -0.12       0.00     0.04
    22   8.9619      0.00    -0.08       0.00     0.05
    23   8.9782      0.00     0.15       0.00     0.05
    24   9.0573      0.00     0.02       0.00    -0.12
    25   9.0574      0.00     0.05       0.00    -0.05
    26   9.0575      0.00     0.10       0.00     0.18
    27   9.0764      0.00     0.10       0.00     0.01
    28   9.0765      0.00     0.10       0.00     0.03
    29   9.0766      0.00     0.05       0.00    -0.02
    30   9.0821      0.00    -0.05       0.00     0.23
    31   9.1448      0.00    -0.04       0.00     0.01
    32   9.1449      0.00     0.06       0.00     0.02
    33   9.1530      0.00    -0.04       0.00     0.03
    34   9.2052      0.00    -0.01       0.00    -0.08
    35   9.2268      0.00    -0.06       0.00    -0.01
    36   9.7834      0.00    -0.01       0.00     0.03
    37   9.7998      0.00     0.05       0.00    -0.00
    38   9.8874      0.00    -0.10       0.00     0.07
    39   9.8874      0.00    -0.10       0.00     0.01
    40   9.9393      0.00    -0.05       0.00    -0.01
    41   9.9531      0.00     0.01       0.00    -0.01
    42  10.0103      0.00    -0.00       0.00     0.01
    43  10.0239      0.00    -0.01       0.00    -0.02
    44  10.0951      0.00    -0.04       0.00    -0.09
    45  10.1905      0.00    -0.01       0.00    -0.13
    46  10.1934      0.00    -0.01       0.00    -0.12
    47  10.9277      0.00    -0.02       0.00    -0.03
    48  11.3183      0.00     0.07       0.00    -0.01
    49  11.3348      0.00    -0.03       0.00    -0.02

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.

06HT122    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.096    39.096    39.096
ecceobj         0.160     0.160     0.160
incobj          7.222     7.222     7.222
qmin           32.386    32.387    32.386
qmax           46.665    46.674    46.656
amean          39.455    39.455    39.455
amin           39.061    39.061    39.061
amax           39.780    39.779    39.781
emean           0.160     0.160     0.160
emin            0.143     0.143     0.143
emax            0.176     0.177     0.176
imean           6.985     6.984     6.985
imin            6.400     6.400     6.400
imax            7.738     7.738     7.738
excite_mean     0.201     0.201     0.201
fracstop        1.000     1.000     1.000
cjmean          3.006     3.006     3.006

libcent 0       179.6     179.7     179.7
libamp  0        58.5      58.5      58.6
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       180.7     180.9     180.6
kozaiamp        179.9     179.8     180.0