Orbit Fit and Astrometric record for 08UA332

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: 08UA332   
# Created Wed Dec  8 02:10:45 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     45 observations of     45
# Arc:  10.03y
# First observation: 2008/10/26
#  Last observation: 2018/11/07
# Chi-squared of fit:    28.77 DOF:     84 RMS:  0.14
# Min/Max residuals:    -0.35    0.70
# Exact a, adot, b, bdot, g, gdot:
  1.771307E-05  2.680655E-02  2.323671E-06  2.179757E-03  2.415820E-02  8.023076E-03
# Covariance matrix:
  2.5669E-13 -6.5214E-14  7.7557E-16 -4.0027E-15  2.9778E-14 -1.7478E-13
 -6.5214E-14  5.1260E-14 -6.2657E-15  4.7952E-15  1.5360E-14  2.2480E-13
  7.7557E-16 -6.2657E-15  2.2150E-13 -3.0712E-14 -1.7034E-14 -2.8752E-14
 -4.0027E-15  4.7952E-15 -3.0712E-14  5.4958E-15  1.8094E-16  2.3455E-14
  2.9778E-14  1.5360E-14 -1.7034E-14  1.8094E-16  1.6122E-13  5.7009E-14
 -1.7478E-13  2.2480E-13 -2.8752E-14  2.3455E-14  5.7009E-14  1.0941E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
  -31.133475   27.731737   -0.097070   -0.512028   -0.847827  2454765.727484
# Heliocentric elements and errors
Epoch:              2454766.5000  =  2008/10/27
Mean Anomaly:           15.38176 +/-     0.004
Argument of Peri:      226.56711 +/-     0.005
Long of Asc Node:      108.89532 +/-     0.000
Inclination:            30.74894 +/-     0.000
Eccentricity:         0.51579888 +/-    0.0001
Semi-Major Axis:     76.17240272 +/-    0.0123
Time of Perihelion: 2444391.2498 +/-       3.6
Perihelion:          36.88276238 +/-    0.0082
Aphelion:           115.46204306 +/-    0.0194
Period (y)              664.8209 +/-      0.16
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           32.19479095 +/-    0.0005
Ecliptic Y           17.03028689 +/-    0.0003
Ecliptic Z          -21.40194854 +/-    0.0004
Ecliptic XDOT        -0.00060577 +/-    0.0000
Ecliptic YDOT         0.00311302 +/-    0.0000
Ecliptic ZDOT        -0.00025878 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.24405312 +/-    0.0005
Geocenter to KBO     41.39364150 +/-    0.0007
# Hcoef:  6.09

The following table shows the complete astrometric record for 08UA332. 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 (08UA332) followed by the observatory code and reference code for the source of the astrometry.

2008 10  26.22673  02 28 02.06   -18 25 01.3   20.7R 08UA332   807  C~01P1      
2008 10  26.33995  02 28 01.51   -18 25 03.4         08UA332   807  C~01P1      
2008 10  27.27465  02 27 57.03   -18 25 22.2         08UA332   807  C~01P1      
2008 12  21.18816  02 24 11.12   -18 21 32.4   21.7r 08UA332   695  C~03K3      
2008 12  22.21692  02 24 08.45   -18 21 02.7   21.8r 08UA332   695  C~03K3      
2008 12  22.28070  02 24 08.29   -18 21 01.0   21.7r 08UA332   695  C~03K3      
2014 09  15.330671 03 03 02.04   -13 57 43.6   22.0z 08UA332   W84  C~35ao      
2014 09  15.33120  03 03 02.045  -13 57 43.73  22.4z 08UA332   W84  C~4yIn      
2014 10  28.34585  03 00 29.380  -14 20 45.10  22.9g 08UA332   W84  C~4yIn      
2014 10  28.34585  03 00 29.38   -14 20 45.1   23.0g 08UA332   W84  C~3ccc      
2014 10  29.34287  03 00 24.908  -14 21 06.26  22.3i 08UA332   W84  C~4yIn      
2014 10  29.34287  03 00 24.91   -14 21 06.3   22.5i 08UA332   W84  C~3ccc      
2014 10  31.25880  03 00 16.273  -14 21 45.11  22.5i 08UA332   W84  C~4yIn      
2014 10  31.25880  03 00 16.27   -14 21 45.1   22.5i 08UA332   W84  C~3ccc      
2014 10  31.26015  03 00 16.273  -14 21 45.09  23.3g 08UA332   W84  C~4yIn      
2014 10  31.26015  03 00 16.27   -14 21 45.1   23.4g 08UA332   W84  C~3ccc      
2014 10  31.26291  03 00 16.247  -14 21 45.17  22.5r 08UA332   W84  C~4yIn      
2014 10  31.26291  03 00 16.25   -14 21 45.2   22.5r 08UA332   W84  C~3ccc      
2014 11  28.25916  02 58 09.524  -14 26 03.70  21.9i 08UA332   W84  C~4yIn      
2014 11  28.25916  02 58 09.52   -14 26 03.7   21.9i 08UA332   W84  C~3ccc      
2014 12  23.11151  02 56 36.565  -14 21 04.83  22.9i 08UA332   W84  C~4yIn      
2014 12  23.11151  02 56 36.56   -14 21 04.8   22.9i 08UA332   W84  C~3ccc      
2015 01  26.05530  02 55 39.18   -14 02 08.4   22.4z 08UA332   W84  C~3ccc      
2015 11  22.22775  03 03 37.419  -13 46 19.17  21.5z 08UA332   W84  C~4yIn      
2015 11  22.22775  03 03 37.42   -13 46 19.2   21.8z 08UA332   W84  C~3ccc      
2015 12  15.21424  03 02 03.202  -13 44 17.72  22.8i 08UA332   W84  C~4yIn      
2015 12  15.21424  03 02 03.20   -13 44 17.7   22.8i 08UA332   W84  C~3ccc      
2015 12  15.21559  03 02 03.196  -13 44 17.53  22.9r 08UA332   W84  C~4yIn      
2015 12  15.21559  03 02 03.20   -13 44 17.5   23.0r 08UA332   W84  C~3ccc      
2015 12  15.21697  03 02 03.193  -13 44 17.66  23.6g 08UA332   W84  C~4yIn      
2015 12  15.21697  03 02 03.19   -13 44 17.7   24.1g 08UA332   W84  C~3ccc      
2016 01  16.12076  03 00 43.34   -13 30 19.5   22.2i 08UA332   W84  C~3ccc      
2016 09  24.33743  03 12 24.144  -12 44 36.28  23.0r 08UA332   W84  C~4yIn      
2016 09  24.33743  03 12 24.14   -12 44 36.3   23.0r 08UA332   W84  C~3ccc      
2016 09  25.283264 03 12 21.60   -12 45 09.4   21.7g 08UA332   W84  C~35ao      
2016 11  26.19653  03 08 09.949  -13 07 10.31  22.3i 08UA332   W84  C~4yIn      
2016 11  26.19790  03 08 09.948  -13 07 10.16  22.6r 08UA332   W84  C~4yIn      
2016 11  26.19790  03 08 09.94   -13 07 10.1   22.9r 08UA332   W84  C~3ccc      
2016 12  05.23194  03 07 31.772  -13 06 46.24  23.4g 08UA332   W84  C~4yIn      
2016 12  05.23194  03 07 31.77   -13 06 46.2   23.4g 08UA332   W84  C~3ccc      
2017 11  10.24374  03 14 08.976  -12 26 06.31  22.7z 08UA332   W84  C~4yIn      
2018 01  08.13957  03 10 31.161  -12 17 42.92  22.9i 08UA332   W84  C~4yIn      
2018 01  09.13237  03 10 29.150  -12 17 12.91  22.4r 08UA332   W84  C~4yIn      
2018 01  09.13374  03 10 29.136  -12 17 12.92  23.2g 08UA332   W84  C~4yIn      
2018 11  07.25185  03 19 03.446  -11 46 29.83  23.6g 08UA332   W84  C~4yIn      

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     0.04       0.00    -0.18
     2   0.0003      0.00     0.00       0.00     0.02
     3   0.0029      0.00    -0.35       0.00     0.05
     4   0.1532      0.00     0.15       0.00     0.02
     5   0.1560      0.00     0.03       0.00     0.14
     6   0.1562      0.00     0.13       0.00    -0.04
     7   5.8867      0.00    -0.18       0.00     0.12
     8   5.8867      0.00    -0.09       0.00     0.01
     9   6.0044      0.00     0.08       0.00    -0.08
    10   6.0044      0.00     0.08       0.00    -0.08
    11   6.0072      0.00     0.05       0.00    -0.09
    12   6.0072      0.00     0.02       0.00    -0.05
    13   6.0124      0.00    -0.04       0.00    -0.01
    14   6.0124      0.00     0.00       0.00    -0.02
    15   6.0124      0.00     0.10       0.00     0.03
    16   6.0124      0.00     0.05       0.00     0.02
    17   6.0124      0.00    -0.06       0.00    -0.03
    18   6.0124      0.00    -0.10       0.00     0.00
    19   6.0891      0.00    -0.09       0.00     0.14
    20   6.0891      0.00    -0.03       0.00     0.14
    21   6.1571      0.00    -0.05       0.00     0.03
    22   6.1571      0.00     0.02       0.00    -0.00
    23   6.2500      0.00     0.01       0.00     0.06
    24   7.0719      0.00    -0.01       0.00    -0.26
    25   7.0719      0.00    -0.02       0.00    -0.23
    26   7.1348      0.00    -0.00       0.00    -0.04
    27   7.1348      0.00     0.03       0.00    -0.06
    28   7.1348      0.00     0.07       0.00     0.14
    29   7.1348      0.00     0.01       0.00     0.11
    30   7.1348      0.00    -0.00       0.00    -0.08
    31   7.1348      0.00     0.04       0.00    -0.04
    32   7.2222      0.00    -0.05       0.00     0.07
    33   7.9127      0.00    -0.22       0.00    -0.08
    34   7.9127      0.00    -0.16       0.00    -0.06
    35   7.9153      0.00     0.65       0.00     0.70
    36   8.0848      0.00     0.12       0.00    -0.13
    37   8.0848      0.00     0.08       0.00     0.08
    38   8.0848      0.00     0.20       0.00     0.02
    39   8.1095      0.00     0.01       0.00    -0.08
    40   8.1095      0.00     0.04       0.00    -0.12
    41   9.0404      0.00    -0.11       0.00    -0.01
    42   9.2017      0.00     0.10       0.00     0.03
    43   9.2044      0.00    -0.04       0.00     0.02
    44   9.2044      0.00    -0.21       0.00    -0.03
    45  10.0316      0.00    -0.14       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.

08UA332    quality flag:3

Type:         4:1EEE    4:1EEE    4:1EEE

axisobj        77.091    77.091    77.090
ecceobj         0.520     0.520     0.520
incobj         30.738    30.738    30.738
qmin           36.229    36.226    36.232
qmax          117.370   117.375   117.366
amean          75.871    75.871    75.871
amin           74.907    74.902    74.912
amax           77.245    77.246    77.244
emean           0.497     0.497     0.497
emin            0.479     0.479     0.479
emax            0.522     0.522     0.522
imean          30.289    30.288    30.290
imin           28.891    28.889    28.894
imax           31.140    31.140    31.141
excite_mean     0.708     0.708     0.708
fracstop        1.000     1.000     1.000
cjmean          2.776     2.776     2.776

libcent 0        70.0      70.0      70.0
libamp  0        11.7      11.6      11.7
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       188.4     188.4     188.5
kozaiamp         42.2      42.2      42.2