Orbit Fit and Astrometric record for 04VH131

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: 04VH131   
# Created Tue Oct 24 01:37:34 2017
# Orbit generated from Bernstein formalism
# Fitting   26 observations of   26
# Arc:   2.84y
# First observation: 2004/11/09
#  Last observation: 2007/09/12
Preliminary a, adot, b, bdot, g, gdot:
   0.000521   0.050855   0.000104   0.010730   0.037734   0.000000
# Chi-squared of fit:    41.86 DOF:   46 RMS:  0.22
# Min/Max residuals:    -0.45    0.48
# Exact a, adot, b, bdot, g, gdot:
  2.182649E-05  5.377673E-02  5.031313E-06  1.135836E-02  3.880940E-02  2.091819E-02
# Covariance matrix:
  2.4571E-13 -7.5578E-14 -9.2497E-16  8.2994E-15  9.9032E-14  3.1414E-13
 -7.5578E-14  6.3893E-13 -1.6647E-14  1.2997E-13  4.1957E-13  5.1159E-12
 -9.2497E-16 -1.6647E-14  2.1927E-13 -1.0632E-13 -1.2640E-14 -1.4921E-13
  8.2994E-15  1.2997E-13 -1.0632E-13  9.6301E-14  1.0202E-13  1.1680E-12
  9.9032E-14  4.1957E-13 -1.2640E-14  1.0202E-13  5.5262E-13  3.9768E-12
  3.1414E-13  5.1159E-12 -1.4921E-13  1.1680E-12  3.9768E-12  4.5939E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.813594   43.175700   -0.067150    0.014170   -0.990459  2453318.893103
# Heliocentric elements and errors
Epoch:              2453310.5000  =  2004/11/01
Mean Anomaly:           11.28164 +/-     0.004
Argument of Peri:      308.12451 +/-     0.010
Long of Asc Node:       39.63407 +/-     0.000
Inclination:            11.98867 +/-     0.000
Eccentricity:         0.62696971 +/-    0.0001
Semi-Major Axis:     59.67855344 +/-    0.0145
Time of Perihelion: 2448033.3983 +/-       0.3
Perihelion:          22.26190802 +/-    0.0090
Aphelion:            97.09519887 +/-    0.0247
Period (y)              461.0368 +/-      0.17
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           19.46067446 +/-    0.0004
Ecliptic Y           18.35678226 +/-    0.0003
Ecliptic Z            0.36599951 +/-    0.0000
Ecliptic XDOT        -0.00152923 +/-    0.0000
Ecliptic YDOT         0.00376127 +/-    0.0000
Ecliptic ZDOT         0.00082225 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   26.75487359 +/-    0.0003
Geocenter to KBO     25.76695088 +/-    0.0005
# Hcoef:  9.84

The following table shows the complete astrometric record for 04VH131. 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 (04VH131) followed by the observatory code and reference code for the source of the astrometry.

2004 11  09.39236  02 41 52.16   +16 34 09.4   23.4g 04VH131   568  C~0X5c      
2004 11  09.41885  02 41 51.96   +16 34 08.6   23.9g 04VH131   568  C~0X5c      
2004 11  09.44482  02 41 51.78   +16 34 08.3   24.0g 04VH131   568  C~0X5c      
2004 11  10.30935  02 41 45.48   +16 33 44.8         04VH131   568  C~0X5c      
2005 01  05.23577  02 36 45.55   +16 15 46.4   23.8i 04VH131   568  C~0X5c      
2005 01  05.30975  02 36 45.37   +16 15 46.0   23.7i 04VH131   568  C~0X5c      
2005 01  05.36168  02 36 45.25   +16 15 46.0   23.8i 04VH131   568  C~0X5c      
2006 10  25.41429  03 05 57.57   +19 33 46.2   24.0r 04VH131   568  C~0X5c      
2006 10  25.45119  03 05 57.29   +19 33 45.5   24.1r 04VH131   568  C~0X5c      
2006 10  25.49001  03 05 57.03   +19 33 44.6   24.0r 04VH131   568  C~0X5c      
2006 10  26.36698  03 05 50.97   +19 33 27.2   24.2r 04VH131   568  C~0X5c      
2006 10  26.39952  03 05 50.72   +19 33 25.9   24.3r 04VH131   568  C~0X5c      
2006 10  26.44427  03 05 50.43   +19 33 25.6   24.1r 04VH131   568  C~0X5c      
2006 10  27.43660  03 05 43.51   +19 33 05.2         04VH131   568  C~0X5c      
2006 10  27.49046  03 05 43.12   +19 33 04.0   24.2r 04VH131   568  C~0X5c      
2006 10  27.53819  03 05 42.78   +19 33 02.8   24.0r 04VH131   568  C~0X5c      
2006 11  25.28323  03 02 16.59   +19 21 57.6         04VH131   695  C~0X5c      
2006 11  25.36542  03 02 16.03   +19 21 55.6         04VH131   695  C~0X5c      
2007 01  15.25881  02 58 14.78   +19 07 36.9         04VH131   568  C~0X5c      
2007 01  15.30759  02 58 14.69   +19 07 36.5         04VH131   568  C~0X5c      
2007 01  15.35176  02 58 14.63   +19 07 36.4         04VH131   568  C~0X5c      
2007 01  16.25775  02 58 13.18   +19 07 31.5         04VH131   568  C~0X5c      
2007 01  16.29799  02 58 13.12   +19 07 31.2         04VH131   568  C~0X5c      
2007 01  16.33782  02 58 13.05   +19 07 31.2         04VH131   568  C~0X5c      
2007 09  12.45331  03 20 06.27   +20 57 24.6   23.8r 04VH131   695  C~0X5c      
2007 09  12.49558  03 20 06.17   +20 57 24.6   23.6r 04VH131   695  C~0X5c      

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     0.02       0.00    -0.08
  2   0.0001     -2.98    -0.05       0.11    -0.16
  3   0.0001     -5.54     0.26       0.61     0.16
  4   0.0025    -98.98     0.08       5.63    -0.11
  5   0.1556  -4538.39    -0.09     298.31    -0.06
  6   0.1558  -4540.98    -0.16     298.73     0.00
  7   0.1560  -4542.62    -0.05     299.26     0.30
  8   1.9576  22933.97     0.19    4414.67    -0.20
  9   1.9577  22929.92    -0.09    4415.07    -0.08
 10   1.9578  22926.09     0.06    4415.20    -0.24
 11   1.9602  22837.84     0.06    4421.65     0.33
 12   1.9603  22834.04    -0.40    4421.35    -0.21
 13   1.9604  22829.97     0.13    4422.17     0.28
 14   1.9632  22729.06    -0.02    4429.03     0.48
 15   1.9633  22723.36    -0.13    4429.37     0.44
 16   1.9634  22718.35    -0.19    4429.52     0.25
 17   2.0421  19699.34    -0.04    4586.47     0.27
 18   2.0424  19691.09     0.23    4586.73     0.16
 19   2.1817  16143.28     0.07    4712.53    -0.35
 20   2.1818  16141.93    -0.00    4712.51    -0.45
 21   2.1820  16141.08     0.29    4712.65    -0.37
 22   2.1844  16119.85    -0.10    4713.72    -0.33
 23   2.1845  16118.94    -0.04    4713.67    -0.44
 24   2.1847  16117.99    -0.05    4713.95    -0.21
 25   2.8393  36046.52    -0.01    6180.85     0.34
 26   2.8394  36045.13     0.03    6181.21     0.24

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.

04VH131    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        61.335    61.379    61.290
ecceobj         0.637     0.637     0.636
incobj         11.949    11.949    11.949
qmin           21.779    21.629    21.624
qmax          101.498   100.854   103.028
amean          58.558    58.361    60.145
amin           56.620    55.403    57.501
amax           62.264    61.592    62.852
emean           0.619     0.621     0.627
emin            0.602     0.598     0.607
emax            0.639     0.641     0.647
imean          11.211    11.081    12.078
imin           10.332    10.269    10.362
imax           13.605    12.896    13.694
excite_mean     0.649     0.650     0.661
fracstop        0.096     0.077     0.145
cjmean          2.660     2.654     2.652

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       186.8     178.7     134.3
kozaiamp        179.9     179.9     179.9