Orbit Fit and Astrometric record for 04VZ130

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: 04VZ130   
# Created Fri Dec 15 02:37:21 2017
# Orbit generated from Bernstein formalism
# Fitting   24 observations of   28
# Arc:   4.77y
# First observation: 2004/11/09
#  Last observation: 2009/08/19
Preliminary a, adot, b, bdot, g, gdot:
   0.001202   0.043601   0.000180   0.008953   0.034956   0.000000
# Chi-squared of fit:    18.87 DOF:   42 RMS:  0.16
# Min/Max residuals:    -0.45    0.36
# Exact a, adot, b, bdot, g, gdot:
  1.910684E-05  4.522574E-02  5.490456E-06  9.256033E-03  3.548373E-02  4.783006E-03
# Covariance matrix:
  3.5597E-13 -1.8023E-13  9.5529E-15 -1.3186E-14  9.3964E-14 -3.4298E-13
 -1.8023E-13  1.8457E-13 -2.0135E-14  2.8659E-14  4.4515E-14  7.0462E-13
  9.5529E-15 -2.0135E-14  2.2637E-13 -7.8252E-14 -1.6189E-14 -1.0697E-13
 -1.3186E-14  2.8659E-14 -7.8252E-14  4.0453E-14  2.3942E-14  1.5337E-13
  9.3964E-14  4.4515E-14 -1.6189E-14  2.3942E-14  2.8709E-13  5.4758E-13
 -3.4298E-13  7.0462E-13 -1.0697E-13  1.5337E-13  5.4758E-13  3.7199E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.546658   42.492114   -0.078963    0.009547   -0.989642  2453318.893103
# Heliocentric elements and errors
Epoch:              2453310.5000  =  2004/11/01
Mean Anomaly:           15.33141 +/-     0.006
Argument of Peri:      334.71267 +/-     0.011
Long of Asc Node:       40.07933 +/-     0.000
Inclination:            11.59901 +/-     0.000
Eccentricity:         0.27930314 +/-    0.0001
Semi-Major Axis:     39.44507054 +/-    0.0035
Time of Perihelion: 2449456.8959 +/-       1.4
Perihelion:          28.42793860 +/-    0.0033
Aphelion:            50.46220248 +/-    0.0049
Period (y)              247.7407 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           21.45138383 +/-    0.0003
Ecliptic Y           19.76353116 +/-    0.0003
Ecliptic Z            0.26902787 +/-    0.0000
Ecliptic XDOT        -0.00209122 +/-    0.0000
Ecliptic YDOT         0.00281056 +/-    0.0000
Ecliptic ZDOT         0.00071776 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   29.16901452 +/-    0.0003
Geocenter to KBO     28.18192808 +/-    0.0004
# Hcoef:  8.90

The following table shows the complete astrometric record for 04VZ130. 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 (04VZ130) followed by the observatory code and reference code for the source of the astrometry.

2004 11  09.39236  02 39 29.59   +16 06 25.9   23.5g 04VZ130   568  C~0Ur5      
2004 11  09.41885  02 39 29.38   +16 06 25.6   23.4g 04VZ130   568  C~0Ur5      
2004 11  09.44482  02 39 29.19   +16 06 25.2   23.6g 04VZ130   568  C~0Ur5      
2004 11  10.30935  02 39 23.32   +16 06 02.9   23.8g 04VZ130   568  C~0Ur5      
2005 01  05.22862  02 34 44.16   +15 48 41.7         04VZ130   568  C~0Ur5      
2005 01  05.30187  02 34 44.04   +15 48 41.3   23.7i 04VZ130   568  C~0Ur5      
2005 01  05.35469  02 34 43.92   +15 48 40.9   23.9i 04VZ130   568  C~0Ur5      
2006 10  26.37867  03 00 22.21   +18 42 24.6   23.8r 04VZ130   568  C~0Ur5      
2006 10  26.61929  03 00 20.54   +18 42 19.0   24.0r 04VZ130   568  C~0Ur5      
2006 10  27.44834  03 00 15.04   +18 42 01.4   23.5r 04VZ130   568  C~0Ur5      
2006 10  27.50210  03 00 14.67   +18 42 00.4   22.8r 04VZ130   568  C~0Ur5      
2006 10  27.54979  03 00 14.35   +18 41 59.3   23.2r 04VZ130   568  C~0Ur5      
2006 11  25.26321  02 56 59.01   +18 30 48.7         04VZ130   695  C~0Ur5      
2006 11  25.34497  02 56 58.44   +18 30 46.9         04VZ130   695  C~0Ur5      
2007 01  15.26114  02 53 13.24   +18 17 09.3         04VZ130   568  C~0Ur5      
2007 01  15.30994  02 53 13.16   +18 17 09.3         04VZ130   568  C~0Ur5      
2007 01  15.35408  02 53 13.09   +18 17 09.1         04VZ130   568  C~0Ur5      
2007 01  16.26008  02 53 11.82   +18 17 05.0         04VZ130   568  C~0Ur5      
2007 01  16.30031  02 53 11.77   +18 17 04.4         04VZ130   568  C~0Ur5      
2007 01  16.34013  02 53 11.71   +18 17 04.7         04VZ130   568  C~0Ur5      
2007 09  11.50707  03 13 37.09   +20 01 21.1   23.3r 04VZ130   695  C~0Ur5      
2007 09  12.43686  03 13 34.84   +20 01 20.5   23.8r 04VZ130   695  C~0Ur5      
2007 09  12.47916  03 13 34.73   +20 01 20.6   23.8r 04VZ130   695  C~0Ur5      
2007 11  08.23090  03 08 36.00   +19 48 55.8   21.6r 04VZ130   695  C~0Ur5      
2007 11  08.36410  03 08 35.06   +19 48 52.9   21.8r 04VZ130   695  C~0Ur5      
2009 08  18.41015  03 32 45.59   +22 06 49.5         04VZ130   675  C~0Ur5      
2009 08  18.44758  03 32 45.64   +22 06 50.0         04VZ130   675  C~0Ur5      
2009 08  19.45471  03 32 47.04   +22 07 05.8         04VZ130   675  C~0Ur5      

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     0.22       0.00    -0.28
  2   0.0001     -2.97    -0.03       0.64     0.21
  3   0.0001     -5.70 (  -0.09)      1.09 (   0.52)
  4   0.0025    -93.07 (  -0.39)      5.69 (   0.79)
  5   0.1556  -4244.67    -0.45     255.51     0.23
  6   0.1558  -4246.44     0.16     255.67     0.07
  7   0.1560  -4248.22     0.09     255.83     0.00
  8   1.9603  19944.18 (   0.63)   3714.97 (  -0.05)
  9   1.9609  19919.60    -0.13    3716.21    -0.27
 10   1.9632  19838.90    -0.09    3721.09    -0.05
 11   1.9633  19833.52    -0.11    3721.59     0.13
 12   1.9635  19828.81    -0.07    3721.80     0.06
 13   2.0421  16952.29 (   0.67)   3858.24 (  -0.06)
 14   2.0423  16943.95     0.36    3858.81     0.17
 15   2.1817  13619.98    -0.05    3990.13    -0.05
 16   2.1818  13618.88    -0.00    3990.45     0.18
 17   2.1820  13617.86    -0.00    3990.55     0.20
 18   2.1844  13599.28    -0.03    3991.83     0.04
 19   2.1846  13598.42    -0.03    3991.46    -0.41
 20   2.1847  13597.68     0.08    3992.00     0.06
 21   2.8367  32256.02     0.08    5266.14    -0.07
 22   2.8393  32224.50    -0.02    5273.88    -0.22
 23   2.8394  32223.00     0.01    5274.38    -0.10
 24   2.9948  27871.84     0.05    5665.92    -0.14
 25   2.9951  27858.03     0.03    5666.66    -0.11
 26   4.7721  50421.51     0.01    8730.46     0.15
 27   4.7722  50422.35    -0.04    8730.80     0.04
 28   4.7750  50446.36    -0.03    8742.13     0.16

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.

04VZ130    quality flag:3

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

axisobj        40.015    40.026    40.004
ecceobj         0.289     0.290     0.289
incobj         11.555    11.555    11.555
qmin           27.486    27.583    27.370
qmax           52.094    52.195    52.277
amean          39.455    39.455    39.455
amin           38.978    38.985    38.988
amax           40.034    40.054    40.015
emean           0.282     0.282     0.282
emin            0.261     0.263     0.263
emax            0.303     0.303     0.306
imean          10.439    10.461    10.424
imin            9.383     9.504     9.282
imax           11.290    11.293    11.315
excite_mean     0.335     0.335     0.336
fracstop        1.000     1.000     1.000
cjmean          2.923     2.923     2.923

libcent 0       179.8     180.5     179.7
libamp  0        89.2      94.0      84.5
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       165.8     168.7     164.5
kozaiamp        180.0     180.0     180.0