Orbit Fit and Astrometric record for 04PZ111

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: 04PZ111   
# Created Tue Oct 24 01:37:31 2017
# Orbit generated from Bernstein formalism
# Fitting    4 observations of    4
# Arc:  32.08d
# First observation: 2004/08/12
#  Last observation: 2004/09/13
# WARNING Fitting with energy constraint
# WARNING and with gdot fixed = 0
# WARNING MRQMIN stopped after  13 iterations -- oscilliatory solution
# Chi-squared of fit:     0.75 DOF:    4 RMS:  0.08
# Min/Max residuals:    -0.09    0.10
# Exact a, adot, b, bdot, g, gdot:
  1.548132E-05  2.526767E-02  1.432477E-07 -2.422559E-04  2.623221E-02  0.000000E+00
# Covariance matrix:
  4.3417E-11  6.9354E-08 -1.0769E-12 -2.1502E-09  1.1967E-08  0.0000E+00
  6.9354E-08  1.1270E-04 -1.7497E-09 -3.4935E-06  1.9444E-05  0.0000E+00
 -1.0769E-12 -1.7497E-09  7.5415E-13  4.5928E-11 -3.0188E-10  0.0000E+00
 -2.1502E-09 -3.4935E-06  4.5928E-11  1.0849E-07 -6.0275E-07  0.0000E+00
  1.1967E-08  1.9444E-05 -3.0188E-10 -6.0275E-07  3.3548E-06  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  2.3753E-04
#      lat0       lon0       xBary       yBary       zBary        JD0
   -5.207245  -42.912794   -0.048234   -0.092133   -1.011987  2453229.652463
# Heliocentric elements and errors
Epoch:              2453220.5000  =  2004/08/03
Mean Anomaly:          178.17740 +/-    36.923
Argument of Peri:       85.49464 +/-    17.040
Long of Asc Node:       53.19335 +/-     5.903
Inclination:             5.10085 +/-     0.046
Eccentricity:         0.08480290 +/-    0.5807
Semi-Major Axis:     36.07158649 +/-   16.8567
Time of Perihelion: 2493186.5903 +/-   82815.1
Perihelion:          33.01261132 +/-   26.0149
Aphelion:            39.13056166 +/-   27.8058
Period (y)              216.6487 +/-    151.86
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           28.57767308 +/-    1.9412
Ecliptic Y          -26.50375253 +/-    1.8050
Ecliptic Z           -3.45981030 +/-    0.2416
Ecliptic XDOT         0.00179199 +/-    0.0013
Ecliptic YDOT         0.00192601 +/-    0.0013
Ecliptic ZDOT        -0.00002507 +/-    0.0001
# Distances at JD0 (AU)
Heliocenter to KBO   39.12930595 +/-    1.8722
Geocenter to KBO     38.12107801 +/-    2.6617
# Hcoef:  6.98

The following table shows the complete astrometric record for 04PZ111. 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 (04PZ111) followed by the observatory code and reference code for the source of the astrometry.

2004 08  12.15172  21 24 52.67   -20 40 13.5   22.0R 04PZ111   807  Cl4405      
2004 08  12.26301  21 24 52.08   -20 40 16.0         04PZ111   807  Cl4405      
2004 09  13.07425  21 22 15.90   -20 50 44.5   23.1R 04PZ111   304  Cl4405      
2004 09  13.23343  21 22 15.20   -20 50 47.0         04PZ111   304  Cl4405      

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    -0.05       0.00    -0.06
  2   0.0003     -8.65     0.06       0.20     0.06
  3   0.0874  -2286.32     0.10      80.44     0.08
  4   0.0878  -2296.43    -0.09      81.08    -0.08

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.

04PZ111    quality flag:0

Type:      ERR2LARGE ERR2LARGE ERR2LARGE

axisobj         0.000     0.000     0.000
ecceobj        -1.000    -1.000    -1.000
incobj         -1.000    -1.000    -1.000
qmin            0.000     0.000     0.000
qmax            0.000     0.000     0.000
amean           0.000     0.000     0.000
amin            0.000     0.000     0.000
amax            0.000     0.000     0.000
emean           0.000     0.000     0.000
emin            0.000     0.000     0.000
emax            0.000     0.000     0.000
imean           0.000     0.000     0.000
imin            0.000     0.000     0.000
imax            0.000     0.000     0.000
excite_mean     0.000     0.000     0.000
fracstop        0.000     0.000     0.000
cjmean          0.000     0.000     0.000

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         0.0       0.0       0.0
kozaiamp          0.0       0.0       0.0