Orbit Fit and Astrometric record for 05CA79

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: 05CA79    
# Created Wed Dec 13 02:37:24 2017
# Orbit generated from Bernstein formalism
# Fitting   69 observations of   73
# Arc:  15.17y
# First observation: 2001/12/19
#  Last observation: 2017/02/18
Preliminary a, adot, b, bdot, g, gdot:
  -0.004809   0.032978  -0.000443   0.002570   0.028446   0.000000
# Chi-squared of fit:    84.15 DOF:  132 RMS:  0.20
# Min/Max residuals:    -0.71    0.55
# Exact a, adot, b, bdot, g, gdot:
  1.819714E-05  3.137767E-02  2.484366E-06  2.419736E-03  2.756853E-02  2.167376E-04
# Covariance matrix:
  2.1042E-13 -4.4155E-14  7.6794E-15 -2.8032E-15  2.1536E-14 -7.1778E-14
 -4.4155E-14  1.7440E-14 -2.9288E-15  1.3106E-15  7.3852E-15  3.3485E-14
  7.6794E-15 -2.9288E-15  1.1177E-13 -9.5004E-15  8.5662E-16 -6.0004E-15
 -2.8032E-15  1.3106E-15 -9.5004E-15  1.0426E-15  5.3938E-16  2.6606E-15
  2.1536E-14  7.3852E-15  8.5662E-16  5.3938E-16  5.7445E-14  1.3552E-14
 -7.1778E-14  3.3485E-14 -6.0004E-15  2.6606E-15  1.3552E-14  6.7984E-14
#      lat0       lon0       xBary       yBary       zBary        JD0
   11.003178  117.815780    0.490661    0.161439   -0.830785  2452262.994773
# Heliocentric elements and errors
Epoch:              2452260.5000  =  2001/12/17
Mean Anomaly:          358.97077 +/-     0.001
Argument of Peri:       69.07070 +/-     0.002
Long of Asc Node:       50.07757 +/-     0.000
Inclination:            11.65903 +/-     0.000
Eccentricity:         0.23115739 +/-    0.0000
Semi-Major Axis:     48.26574496 +/-    0.0023
Time of Perihelion: 2452610.6614 +/-       0.5
Perihelion:          37.10876157 +/-    0.0023
Aphelion:            59.42272835 +/-    0.0033
Period (y)              335.3256 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -16.57491855 +/-    0.0001
Ecliptic Y           32.47495135 +/-    0.0003
Ecliptic Z            6.92333622 +/-    0.0001
Ecliptic XDOT        -0.00275311 +/-    0.0000
Ecliptic YDOT        -0.00147610 +/-    0.0000
Ecliptic ZDOT         0.00024021 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.11176329 +/-    0.0002
Geocenter to KBO     36.27324808 +/-    0.0003
# Hcoef:  5.41

The following table shows the complete astrometric record for 05CA79. 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 (05CA79) followed by the observatory code and reference code for the source of the astrometry.

2001 12  19.49403  08 09 45.87   +31 21 47.5   20.5R 05CA79    644  Cy2105      
2002 01  09.364928 08 07 48.04   +31 30 04.0   20.7V 05CA79    645  C~1Q3K      
2002 01  09.365757 08 07 48.03   +31 30 04.0   20.3V 05CA79    645  C~1Q3K      
2002 01  09.368245 08 07 48.02   +31 30 04.1   21.5V 05CA79    645  C~1Q3K      
2002 03  03.14902  08 02 49.28   +31 39 53.5   20.5R 05CA79    644  Cy2105      
2003 03  07.25673  08 10 55.81   +31 25 12.2   21. R 05CA79    644  Cy2105      
2005 02  01.25848  08 30 30.93   +30 44 40.3   21.3R 05CA79    644  Cv4440      
2005 02  01.32689  08 30 30.55   +30 44 41.7   21.5R 05CA79    644  Cv4440      
2005 02  01.39048  08 30 30.13   +30 44 43.0   20.7R 05CA79    644  Cv4440      
2005 02  02.20606  08 30 25.18   +30 44 57.4   20.7R 05CA79    644  Cv4440      
2005 02  02.27396  08 30 24.80   +30 44 58.0   20.5R 05CA79    644  Cv4440      
2005 02  02.33718  08 30 24.40   +30 44 59.2   20.6R 05CA79    644  Cv4440      
2005 04  13.12906  08 26 04.86   +30 44 53.9   20.9R 05CA79    644  Cv4440      
2005 04  13.13148  08 26 04.85   +30 44 53.8   20.9R 05CA79    644  Cv4440      
2005 04  14.12666  08 26 04.76   +30 44 36.3   21.3R 05CA79    644  Cv4440      
2005 04  14.15821  08 26 04.76   +30 44 36.2   21.1R 05CA79    644  Cv4440      
2005 11  05.44506  08 44 15.24   +29 46 24.9   20.6R 05CA79    644  Cv4440      
2005 11  05.49830  08 44 15.26   +29 46 26.0   20.6R 05CA79    644  Cv4440      
2006 03  25.21068  08 34 39.01   +30 28 59.1         05CA79    644  Cv4440      
2006 03  25.30752  08 34 38.75   +30 28 58.3         05CA79    644  Cv4440      
2008 02  26.88707  08 52 37.64   +29 42 11.1   20.5R 05CA79    461  Cx9421      
2008 02  26.94567  08 52 37.32   +29 42 11.7         05CA79    461  Cx9421      
2008 12  16.90722  09 06 55.32   +28 46 29.2   22.1R 05CA79    250  S~06An      
2008 12  16.91347  09 06 55.30   +28 46 29.4         05CA79    250  S~06An      
2008 12  16.92041  09 06 55.28   +28 46 29.6         05CA79    250  S~06An      
2008 12  16.92666  09 06 55.26   +28 46 29.8         05CA79    250  S~06An      
2012 01  19.43291  09 27 42.842  +27 31 51.73  21.2g 05CA79    F51  C~1vVN      
2012 01  19.44552  09 27 42.779  +27 31 51.91  21.2g 05CA79    F51  C~1vVN      
2012 01  19.57647  09 27 42.071  +27 31 55.94  20.7r 05CA79    F51  C~1vVN      
2012 01  19.58813  09 27 42.004  +27 31 56.23  20.8r 05CA79    F51  C~1vVN      
2012 02  04.56416  09 26 12.330  +27 39 35.55  20.3i 05CA79    F51  C~1vVN      
2012 02  04.57669  09 26 12.266  +27 39 35.95  20.4i 05CA79    F51  C~1vVN      
2012 02  04.61276  09 26 12.052  +27 39 36.83  20.7r 05CA79    F51  C~1vVN      
2012 02  04.63439  09 26 11.941  +27 39 37.39  20.6r 05CA79    F51  C~1vVN      
2013 03  10.02798  09 30 42.39   +27 17 53.6         05CA79    I17  C~0pq5      
2013 03  10.09484  09 30 42.07   +27 17 54.5         05CA79    I17  C~0pq5      
2013 03  10.19820  09 30 41.79   +27 17 51.7         05CA79    I17  C~0pq5      
2014 06  07.27099  09 37 00.149  +26 23 50.16  20.9i 05CA79    F51  C~1vVN      
2014 06  07.28458  09 37 00.215  +26 23 49.60  20.7i 05CA79    F51  C~1vVN      
2014 06  07.29827  09 37 00.264  +26 23 48.92  21.0i 05CA79    F51  C~1vVN      
2014 11  04.60454  09 52 05.041  +25 17 11.37  21.0w 05CA79    F51  C~1vVN      
2014 11  04.61510  09 52 05.063  +25 17 11.36  21.1w 05CA79    F51  C~1vVN      
2014 11  04.62564  09 52 05.097  +25 17 11.48  21.2w 05CA79    F51  C~1vVN      
2014 11  04.63623  09 52 05.133  +25 17 11.59  21.4w 05CA79    F51  C~1vVO      
2014 12  30.45206  09 51 38.512  +25 37 00.22  20.5i 05CA79    F51  C~1vVO      
2014 12  30.46394  09 51 38.467  +25 37 00.81  20.6i 05CA79    F51  C~1vVO      
2014 12  30.47581  09 51 38.430  +25 37 01.04  20.5i 05CA79    F51  C~1vVO      
2014 12  30.48769  09 51 38.397  +25 37 01.42  20.4i 05CA79    F51  C~1vVO      
2015 01  01.45818  09 51 31.431  +25 38 04.30  20.9i 05CA79    F51  C~1vVO      
2015 01  01.46920  09 51 31.359  +25 38 04.08  20.8i 05CA79    F51  C~1vVO      
2015 01  01.52035  09 51 31.187  +25 38 05.84  20.6i 05CA79    F51  C~1vVO      
2015 02  17.34174  09 47 36.887  +26 02 00.71  20.8w 05CA79    F51  C~1vVO      
2015 02  17.35456  09 47 36.814  +26 02 01.06  20.8w 05CA79    F51  C~1vVO      
2015 02  17.36739  09 47 36.744  +26 02 01.40  20.7w 05CA79    F51  C~1vVO      
2015 02  17.38032  09 47 36.669  +26 02 01.67  20.8w 05CA79    F51  C~1vVO      
2015 02  18.34162  09 47 31.259  +26 02 25.30  20.8w 05CA79    F51  C~1vVO      
2015 02  18.35420  09 47 31.181  +26 02 25.68  20.8w 05CA79    F51  C~1vVO      
2015 02  18.36689  09 47 31.109  +26 02 25.98  20.8w 05CA79    F51  C~1vVO      
2015 02  18.37970  09 47 31.038  +26 02 26.41  20.8w 05CA79    F51  C~1vVO      
2015 03  16.24982  09 45 14.929  +26 10 07.48  20.9w 05CA79    F51  C~1vVO      
2015 03  16.26285  09 45 14.869  +26 10 07.65  20.7w 05CA79    F51  C~1vVO      
2015 03  16.27581  09 45 14.803  +26 10 07.79  20.7w 05CA79    F51  C~1vVO      
2015 03  16.28876  09 45 14.747  +26 10 07.92  20.8w 05CA79    F51  C~1vVO      
2015 03  17.24945  09 45 10.288  +26 10 17.77  20.9w 05CA79    F51  C~1vVO      
2015 03  17.26250  09 45 10.232  +26 10 17.87  20.9w 05CA79    F51  C~1vVO      
2015 03  17.27547  09 45 10.177  +26 10 18.03  20.9w 05CA79    F51  C~1vVO      
2015 03  17.28845  09 45 10.111  +26 10 18.18  20.9w 05CA79    F51  C~1vVO      
2016 02  11.51646  09 55 32.009  +25 22 24.70  21.1w 05CA79    F51  C~1l0Y      
2016 02  11.52918  09 55 31.899  +25 22 25.26  21.1w 05CA79    F51  C~1l0Y      
2016 02  11.55452  09 55 31.751  +25 22 25.97  20.9w 05CA79    F51  C~1l0Y      
2017 02  18.29942  10 02 04.582  +24 47 48.67  20.4i 05CA79    F51  C~28CE      
2017 02  18.32769  10 02 04.408  +24 47 49.52  20.4i 05CA79    F51  C~28CE      
2017 02  18.37881  10 02 04.117  +24 47 50.93  20.3i 05CA79    F51  C~28CE      

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    -0.23
  2   0.0571  -1579.63     0.40     160.33    -0.29
  3   0.0571  -1579.76     0.35     160.31    -0.32
  4   0.0572  -1579.90     0.40     160.38    -0.26
  5   0.2017  -5437.70    -0.71     -55.03     0.19
  6   1.2122    829.11     0.21     395.58     0.13
  7   3.1205  16097.19     0.29    1684.54    -0.07
  8   3.1207  16092.06 (   0.77)   1684.60 (   0.24)
  9   3.1209  16086.46     0.38    1684.43     0.33
 10   3.1231  16020.71     0.17    1681.53     0.35
 11   3.1233  16015.80 (   0.80)   1680.82 (  -0.10)
 12   3.1235  16010.47 (   0.64)   1680.63 (  -0.04)
 13   3.3145  12763.12    -0.38     810.14     0.11
 14   3.3145  12763.02    -0.49     810.01     0.02
 15   3.3173  12766.34    -0.42     792.75    -0.08
 16   3.3174  12766.36    -0.48     792.66     0.38
 17   3.8794  27455.03     0.05    1288.92    -0.24
 18   3.8795  27454.95    -0.12    1290.06    -0.16
 19   4.2621  19459.71     0.02    1634.02     0.02
 20   4.2623  19456.67     0.05    1632.33    -0.04
 21   6.1886  33914.55     0.09    3036.47     0.35
 22   6.1888  33910.29    -0.03    3035.74     0.31
 23   6.9936  46062.30    -0.11    3534.82    -0.05
 24   6.9936  46061.97    -0.10    3534.93    -0.03
 25   6.9936  46061.64    -0.05    3535.03    -0.02
 26   6.9937  46061.31    -0.03    3535.13     0.01
 27  10.0833  64302.92    -0.07    5376.15     0.09
 28  10.0834  64301.99     0.09    5375.98    -0.09
 29  10.0837  64290.75     0.13    5376.12    -0.04
 30  10.0838  64289.73     0.11    5376.05    -0.12
 31  10.1275  62890.51    -0.01    5346.23    -0.08
 32  10.1275  62889.48     0.09    5346.28     0.04
 33  10.1276  62886.24     0.07    5346.00    -0.02
 34  10.1277  62884.52     0.28    5345.96     0.06
 35  11.2212  67090.83     0.13    5529.22     0.11
 36  11.2214  67086.08     0.21    5528.36     0.31
 37  11.2216  67083.44 (   5.02)   5524.12 (  -2.24)
 38  12.4648  73696.57    -0.08    4472.85     0.01
 39  12.4649  73697.73     0.16    4472.68     0.02
 40  12.4649  73698.72     0.21    4472.30    -0.18
 41  12.8764  88470.30    -0.20    5962.63     0.13
 42  12.8764  88470.63    -0.23    5962.76     0.01
 43  12.8765  88471.07    -0.15    5963.09     0.10
 44  12.8765  88471.54    -0.04    5963.43     0.19
 45  13.0293  87500.07    -0.04    6966.09    -0.02
 46  13.0293  87499.13    -0.19    6966.39     0.16
 47  13.0294  87498.48    -0.04    6966.39     0.05
 48  13.0294  87497.81     0.09    6966.55     0.10
 49  13.0348  87365.85    -0.24    6984.66     0.35
 50  13.0348  87364.91    -0.41    6984.00    -0.41
 51  13.0350  87361.55    -0.21    6984.65    -0.19
 52  13.1632  83291.67     0.09    6942.34    -0.12
 53  13.1632  83290.46     0.08    6942.24    -0.09
 54  13.1632  83289.30     0.12    6942.14    -0.05
 55  13.1633  83288.09     0.14    6941.95    -0.11
 56  13.1659  83199.43     0.22    6932.06    -0.10
 57  13.1659  83198.13     0.10    6931.96    -0.07
 58  13.1660  83196.96     0.12    6931.81    -0.07
 59  13.1660  83195.74     0.10    6931.80     0.05
 60  13.2368  81037.03    -0.04    6558.67    -0.10
 61  13.2369  81036.10    -0.03    6558.47    -0.06
 62  13.2369  81035.09    -0.09    6558.22    -0.09
 63  13.2369  81034.23    -0.00    6558.01    -0.07
 64  13.2396  80966.24    -0.20    6540.85    -0.11
 65  13.2396  80965.40    -0.11    6540.61    -0.11
 66  13.2396  80964.54    -0.04    6540.44    -0.05
 67  13.2397  80963.53    -0.12    6540.19    -0.06
 68  14.1465  91348.62     0.55    7589.72     0.02
 69  14.1466  91346.72    -0.11    7589.57    -0.02
 70  14.1466  91344.18    -0.18    7589.31    -0.05
 71  15.1672  98268.44     0.27    8124.72     0.09
 72  15.1672  98265.36    -0.00    8124.39     0.08
 73  15.1674  98260.23    -0.07    8123.82     0.10

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.

05CA79    quality flag:3

Type:           2:1E      2:1E      2:1E

axisobj        47.960    47.967    47.953
ecceobj         0.226     0.226     0.226
incobj         11.655    11.655    11.655
qmin           36.542    36.249    35.444
qmax           59.858    60.218    60.842
amean          47.795    47.795    47.795
amin           47.197    47.198    47.176
amax           48.500    48.511    48.485
emean           0.212     0.224     0.230
emin            0.187     0.206     0.204
emax            0.236     0.243     0.258
imean          10.904    10.595     9.998
imin           10.416    10.328     9.232
imax           11.328    10.933    10.926
excite_mean     0.284     0.290     0.289
fracstop        1.000     1.000     1.000
cjmean          3.048     3.044     3.045

libcent 0       180.9     180.1     180.3
libamp  0       147.7     148.4     147.8
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       193.6     192.7     168.4
kozaiamp        180.0     180.0     180.0