Orbit Fit and Astrometric record for 00PQ30

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: 00PQ30    
# Created Sat Oct 21 01:37:08 2017
# Orbit generated from Bernstein formalism
# Fitting   11 observations of   11
# Arc:  14.81y
# First observation: 2000/08/03
#  Last observation: 2015/05/28
Preliminary a, adot, b, bdot, g, gdot:
  -0.000003   0.023891   0.000001   0.000012   0.024549   0.000000
# WARNING MRQMIN stopped after  13 iterations -- oscilliatory solution
# Chi-squared of fit:  9999.99 DOF:   16 RMS: 40.18
# Min/Max residuals:    -5.67   84.15
# Exact a, adot, b, bdot, g, gdot:
 -1.384154E-05  2.361307E-02  1.055585E-06  1.310491E-05  2.389933E-02  7.189996E-04
# Covariance matrix:
  5.4830E-13  7.6921E-11  5.3361E-16  7.6460E-14  1.8501E-11  2.0788E-10
  7.6921E-11  1.1361E-07  2.7607E-13  1.1831E-10  1.8551E-08  3.0603E-07
  5.3361E-16  2.7607E-13  2.4500E-13 -1.6266E-14  5.3273E-14  7.4453E-13
  7.6460E-14  1.1831E-10 -1.6266E-14  1.2565E-13  1.9232E-11  3.1869E-10
  1.8501E-11  1.8551E-08  5.3273E-14  1.9232E-11  3.1694E-09  4.9985E-08
  2.0788E-10  3.0603E-07  7.4453E-13  3.1869E-10  4.9985E-08  8.2435E-07
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.778925  -40.321177    0.156197   -0.013787   -1.001903  2451759.763613
# Heliocentric elements and errors
Epoch:              2451750.5000  =  2000/07/25
Mean Anomaly:           20.07251 +/-    21.773
Argument of Peri:      249.35383 +/-    25.478
Long of Asc Node:       47.27890 +/-     0.025
Inclination:             0.76119 +/-     0.000
Eccentricity:         0.06442944 +/-    0.0373
Semi-Major Axis:     45.57923376 +/-    1.1229
Time of Perihelion: 2445483.6663 +/-    6793.9
Perihelion:          42.64258905 +/-    1.9997
Aphelion:            48.51587847 +/-    2.0794
Period (y)              307.7221 +/-     11.37
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           32.56703757 +/-    0.0751
Ecliptic Y          -27.83607427 +/-    0.0638
Ecliptic Z           -0.56878879 +/-    0.0013
Ecliptic XDOT         0.00180603 +/-    0.0001
Ecliptic YDOT         0.00201465 +/-    0.0000
Ecliptic ZDOT         0.00000053 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.84603234 +/-    0.0706
Geocenter to KBO     41.84217015 +/-    0.0986
# Hcoef:  8.56

The following table shows the complete astrometric record for 00PQ30. 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 (00PQ30) followed by the observatory code and reference code for the source of the astrometry.

2000 08  03.26287  21 29 23.34   -15 39 16.9   24.0R 00PQ30    809  Cb9232      
2000 08  03.29806  21 29 23.17   -15 39 17.4   24.6R 00PQ30    809  Cb9232      
2000 08  03.32657  21 29 23.01   -15 39 18.2   23.8R 00PQ30    809  Cb9232      
2000 08  08.19662  21 28 59.96   -15 41 09.0   24.0R 00PQ30    809  Cb9232      
2000 08  08.24458  21 28 59.73   -15 41 10.3   24.3R 00PQ30    809  Cb9232      
2000 08  08.29114  21 28 59.48   -15 41 11.4   23.9R 00PQ30    809  Cb9232      
2015 05  27.361839 22 47 53.25   -08 24 20.0   24.8r 00PQ30    W84  C~1j7P      
2015 05  27.383308 22 47 53.27   -08 24 19.7   25.4r 00PQ30    W84  C~1j7P      
2015 05  27.404799 22 47 53.28   -08 24 19.7   25.5r 00PQ30    W84  C~1j7P      
2015 05  27.426352 22 47 53.32   -08 24 19.4   25.3r 00PQ30    W84  C~1j7P      
2015 05  28.361081 22 47 54.47   -08 24 13.7   25.7r 00PQ30    W84  C~1j7P      

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     6.08       0.00    -0.22
  2   0.0001     -2.49     6.07       0.30     0.07
  3   0.0002     -4.93     5.63       0.27     0.03
  4   0.0135   -355.79    -5.07      -0.13     0.19
  5   0.0136   -359.35    -5.21      -0.31    -0.02
  6   0.0138   -363.12    -5.67      -0.22     0.05
  7  14.8120  77116.94    84.15      88.13    -0.09
  8  14.8121  77117.38    84.13      88.30     0.10
  9  14.8122  77117.54    83.82      88.24     0.05
 10  14.8122  77118.29    84.11      88.30     0.12
 11  14.8148  77138.75    84.06      86.95    -0.19

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.

00PQ30    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        41.864    41.864    41.864
ecceobj         0.068     0.068     0.068
incobj          0.761     0.761     0.761
qmin           38.423    38.423    38.422
qmax           45.443    45.444    45.442
amean          41.825    41.825    41.824
amin           41.500    41.498    41.499
amax           42.161    42.153    42.154
emean           0.039     0.039     0.039
emin            0.002     0.002     0.001
emax            0.079     0.079     0.079
imean           2.803     2.803     2.803
imin            1.004     1.004     1.004
imax            4.267     4.265     4.268
excite_mean     0.066     0.066     0.066
fracstop        1.000     1.000     1.000
cjmean          3.071     3.071     3.071

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       173.5     173.3     173.5
kozaiamp        180.0     180.0     180.0