Orbit Fit and Astrometric record for 385527

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: 385527    
# Created Sat Dec 16 02:36:46 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   25 observations of   25
# Arc:   9.22y
# First observation: 2004/07/17
#  Last observation: 2013/10/06
# Chi-squared of fit:    68.71 DOF:   44 RMS:  0.29
# Min/Max residuals:    -0.50    0.64
# Exact a, adot, b, bdot, g, gdot:
  1.859978E-05  3.105871E-02 -4.144986E-07 -1.606447E-03  2.815562E-02 -5.670525E-03
# Covariance matrix:
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.837538  -61.879756    0.054950    0.032728   -1.017468  2453203.667513
# Heliocentric elements and errors
Epoch:              2453204.5000  =  2004/07/18
Mean Anomaly:          322.59821 +/-     0.000
Argument of Peri:      207.73370 +/-     0.000
Long of Asc Node:      148.99483 +/-     0.000
Inclination:             3.46912 +/-     0.000
Eccentricity:         0.24008666 +/-    0.0000
Semi-Major Axis:     43.59478374 +/-    0.0000
Time of Perihelion: 2464127.4538 +/-       0.0
Perihelion:          33.12825790 +/-    0.0000
Aphelion:            54.06130958 +/-    0.0000
Period (y)              287.8459 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           17.15920577 +/-    0.0000
Ecliptic Y          -32.23030851 +/-    0.0000
Ecliptic Z            1.13885695 +/-    0.0000
Ecliptic XDOT         0.00240410 +/-    0.0000
Ecliptic YDOT         0.00189812 +/-    0.0000
Ecliptic ZDOT        -0.00017370 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   36.53130643 +/-    0.0000
Geocenter to KBO     35.51704183 +/-    0.0000
# Hcoef:  7.38

The following table shows the complete astrometric record for 385527. 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 (385527) followed by the observatory code and reference code for the source of the astrometry.

2004 07  17.16677  19 59 19.45   -18 44 13.0   21.4R 385527    807  Cl4371      
2004 07  17.24396  19 59 19.03   -18 44 14.2         385527    807  Cl4371      
2004 08  12.08663  19 56 59.24   -18 51 29.5   22.0R 385527    807  Cl4371      
2004 08  12.19251  19 56 58.70   -18 51 31.1         385527    807  Cl4371      
2004 09  11.02672  19 54 56.62   -18 58 36.0   23.2R 385527    304  Cl4371      
2004 09  11.05406  19 54 56.55   -18 58 36.2         385527    304  Cl4371      
2004 09  17.27283  19 54 40.31   -18 59 42.9   23.6R 385527    568  Cl5744      
2004 09  17.32543  19 54 40.21   -18 59 43.9         385527    568  Cl5744      
2004 09  18.26275  19 54 38.07   -18 59 52.7         385527    568  Cl5744      
2005 06  09.23458  20 09 53.42   -18 18 29.9   22.4R 385527    304  Cp0714      
2005 06  09.26677  20 09 53.29   -18 18 30.0         385527    304  Cp0714      
2005 11  03.09930  20 02 05.92   -18 47 06.0   22.9R 385527    695  Cp0714      
2005 11  03.15448  20 02 06.08   -18 47 06.2         385527    695  Cp0714      
2006 04  26.34625  20 18 26.83   -17 58 05.5   22.3R 385527    807  Cr3590      
2006 04  27.36310  20 18 27.70   -17 58 00.4         385527    807  Cr3590      
2006 04  28.34354  20 18 28.40   -17 57 56.5         385527    807  Cr3590      
2006 06  09.40363  20 17 22.17   -18 00 28.0   22.8R 385527    250  S~06Ak      
2006 06  09.40803  20 17 22.16   -18 00 28.1         385527    250  S~06Ak      
2006 06  09.41243  20 17 22.14   -18 00 28.1         385527    250  S~06Ak      
2006 06  09.41682  20 17 22.12   -18 00 28.2         385527    250  S~06Ak      
2006 06  20.23307  20 16 38.67   -18 02 42.0   23.2R 385527    304  Cr4845      
2006 06  20.26413  20 16 38.53   -18 02 42.4         385527    304  Cr4845      
2013 10  05.12096  21 02 21.46   -15 58 21.2   23.1R 385527    695  C~0zdZ      
2013 10  05.23315  21 02 21.27   -15 58 21.7         385527    695  C~0zdZ      
2013 10  06.12994  21 02 19.32   -15 58 33.2         385527    695  C~0zdZ      

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    -0.09       0.00    -0.48
  2   0.0002      0.00     0.08       0.00    -0.04
  3   0.0710      0.00     0.04       0.00    -0.27
  4   0.0713      0.00     0.09       0.00    -0.14
  5   0.1529      0.00    -0.00       0.00    -0.14
  6   0.1530      0.00     0.18       0.00    -0.03
  7   0.1700      0.00     0.11       0.00     0.07
  8   0.1702      0.00     0.51       0.00    -0.41
  9   0.1727      0.00    -0.04       0.00    -0.01
 10   0.8955      0.00    -0.02       0.00    -0.18
 11   0.8956      0.00    -0.11       0.00     0.07
 12   1.2976      0.00    -0.20       0.00     0.00
 13   1.2977      0.00     0.00       0.00    -0.44
 14   1.7746      0.00    -0.08       0.00    -0.32
 15   1.7774      0.00     0.13       0.00     0.04
 16   1.7801      0.00    -0.13       0.00    -0.27
 17   1.8952      0.00     0.22       0.00     0.64
 18   1.8953      0.00     0.31       0.00     0.59
 19   1.8953      0.00     0.24       0.00     0.64
 20   1.8953      0.00     0.18       0.00     0.58
 21   1.9249      0.00    -0.06       0.00    -0.08
 22   1.9250      0.00    -0.07       0.00    -0.05
 23   9.2182      0.00    -0.37       0.00    -0.31
 24   9.2185      0.00     0.61       0.00     0.51
 25   9.2210      0.00    -0.07       0.00    -0.50

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.

385527    quality flag:3

Type:         7:4EEE    7:4EEE    7:4EEE

axisobj        43.806    43.806    43.806
ecceobj         0.246     0.246     0.246
incobj          3.459     3.459     3.459
qmin           32.657    32.683    32.665
qmax           55.524    55.575    55.646
amean          43.727    43.727    43.727
amin           43.159    43.172    43.159
amax           44.343    44.370    44.391
emean           0.240     0.240     0.240
emin            0.227     0.228     0.227
emax            0.253     0.253     0.254
imean           3.608     3.521     3.507
imin            2.432     2.428     2.298
imax            4.723     4.592     4.945
excite_mean     0.249     0.248     0.248
fracstop        1.000     1.000     1.000
cjmean          3.023     3.023     3.023

libcent 0       178.1     180.6     180.4
libamp  0       129.0     126.9     132.6
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       175.4     176.2     168.3
kozaiamp        179.9     179.9     179.9