Orbit Fit and Astrometric record for 131696

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: 131696    
# Created Fri Dec 19 02:37:16 2014
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   28 observations of   28
# Arc:  11.26y
# First observation: 2001/12/09
#  Last observation: 2013/03/14
# Chi-squared of fit:    26.88 DOF:   50 RMS:  0.17
# Min/Max residuals:    -0.39    0.57
# Exact a, adot, b, bdot, g, gdot:
  1.831788E-05  3.273179E-02  3.218080E-07 -8.818094E-05  2.779901E-02 -3.203428E-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
    0.507294  106.933010    0.483247    0.007461   -0.851513  2452252.874583
# Heliocentric elements and errors
Epoch:              2452252.5000  =  2001/12/09
Mean Anomaly:          347.53496 +/-     0.000
Argument of Peri:      132.07932 +/-     0.000
Long of Asc Node:      359.81852 +/-     0.000
Inclination:             0.51636 +/-     0.000
Eccentricity:         0.32918369 +/-    0.0000
Semi-Major Axis:     53.55898754 +/-    0.0000
Time of Perihelion: 2457209.7180 +/-       0.0
Perihelion:          35.92824245 +/-    0.0000
Aphelion:            71.18973262 +/-    0.0000
Period (y)              391.9735 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -10.26132056 +/-    0.0000
Ecliptic Y           35.37237941 +/-    0.0000
Ecliptic Z            0.31849798 +/-    0.0000
Ecliptic XDOT        -0.00300064 +/-    0.0000
Ecliptic YDOT        -0.00124067 +/-    0.0000
Ecliptic ZDOT        -0.00001127 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   36.83214342 +/-    0.0000
Geocenter to KBO     35.97259165 +/-    0.0000
# Hcoef:  7.53

The following table shows the complete astrometric record for 131696. 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 (131696) followed by the observatory code and reference code for the source of the astrometry.

2001 12  09.37384  07 13 42.39   +22 52 11.7         131696    568  Ce7056      
2001 12  09.40433  07 13 42.22   +22 52 12.1         131696    568  Ce7056      
2001 12  09.44133  07 13 42.05   +22 52 12.3         131696    568  Ce7056      
2002 01  09.39041  07 10 48.68   +22 57 15.0   22.9R 131696    568  Ce7056      
2002 01  09.41340  07 10 48.54   +22 57 15.3   22.6R 131696    568  Ce7056      
2002 02  06.43378  07 08 14.22   +23 01 21.7   22.7R 131696    568  Cf2430      
2002 02  06.48615  07 08 13.98   +23 01 22.1         131696    568  Cf2430      
2003 12  24.45924  07 28 41.38   +22 22 42.2   23.2g 131696    568  Cq9107      
2003 12  24.48237  07 28 41.26   +22 22 42.5   23.2g 131696    568  Cq9107      
2003 12  24.50560  07 28 41.14   +22 22 42.8   23.2g 131696    568  Cq9107      
2003 12  25.49954  07 28 35.62   +22 22 54.6         131696    568  Cq9107      
2004 04  15.17290  07 22 22.45   +22 34 34.0         131696    675  Cq9107      
2004 04  15.22425  07 22 22.56   +22 34 33.8         131696    675  Cq9107      
2004 04  16.20829  07 22 24.54   +22 34 29.2         131696    675  Cq9107      
2005 01  08.35469  07 35 21.92   +22 07 46.1   22.8r 131696    568  Cq9107      
2005 01  08.39254  07 35 21.68   +22 07 46.5   22.8r 131696    568  Cq9107      
2005 01  08.43034  07 35 21.47   +22 07 47.0   22.8r 131696    568  Cq9107      
2005 01  15.37010  07 34 40.67   +22 09 18.9   23.4r 131696    568  Cq9107      
2005 01  15.37762  07 34 40.62   +22 09 18.9   23.2r 131696    568  Cq9107      
2006 01  28.43819  07 41 37.38   +21 52 40.7         131696    675  Cq9107      
2006 01  29.26806  07 41 32.69   +21 52 51.6         131696    675  Cq9107      
2006 01  29.27370  07 41 32.63   +21 52 51.8   23. R 131696    675  Cq9107      
2013 03  13.11923  08 34 59.46   +19 06 42.1   22.2R 131696    695  C~0und      
2013 03  13.12101  08 34 59.46   +19 06 42.2         131696    695  C~0und      
2013 03  13.19582  08 34 59.20   +19 06 43.1         131696    695  C~0und      
2013 03  13.19879  08 34 59.18   +19 06 43.1         131696    695  C~0und      
2013 03  14.12484  08 34 55.94   +19 06 54.1         131696    695  C~0und      
2013 03  14.12911  08 34 55.92   +19 06 54.4         131696    695  C~0und      

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    -0.15       0.00     0.50
  2   0.0001      0.00    -0.14       0.00     0.02
  3   0.0002      0.00     0.10       0.00    -0.12
  4   0.0849      0.00     0.11       0.00     0.03
  5   0.0850      0.00     0.08       0.00     0.10
  6   0.1617      0.00    -0.18       0.00     0.07
  7   0.1618      0.00     0.08       0.00     0.10
  8   2.0399      0.00     0.04       0.00    -0.08
  9   2.0400      0.00     0.19       0.00    -0.06
 10   2.0401      0.00     0.35       0.00    -0.03
 11   2.0428      0.00     0.12       0.00    -0.02
 12   2.3485      0.00    -0.01       0.00    -0.29
 13   2.3487      0.00     0.17       0.00    -0.23
 14   2.3514      0.00    -0.06       0.00    -0.08
 15   3.0828      0.00     0.13       0.00     0.12
 16   3.0829      0.00    -0.08       0.00     0.00
 17   3.0830      0.00     0.15       0.00     0.00
 18   3.1020      0.00    -0.15       0.00     0.33
 19   3.1020      0.00    -0.23       0.00     0.23
 20   4.1371      0.00     0.57       0.00     0.00
 21   4.1393      0.00     0.02       0.00    -0.13
 22   4.1394      0.00    -0.39       0.00    -0.01
 23  11.2573      0.00    -0.09       0.00    -0.01
 24  11.2574      0.00     0.00       0.00     0.07
 25  11.2576      0.00     0.19       0.00     0.04
 26  11.2576      0.00     0.05       0.00     0.01
 27  11.2601      0.00     0.08       0.00    -0.21
 28  11.2601      0.00     0.00       0.00     0.04

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.

131696    quality flag:3

Type:        7:3EEEE   7:3EEEE   7:3EEEE

axisobj        53.204    53.203    53.204
ecceobj         0.324     0.324     0.324
incobj          0.517     0.517     0.517
qmin           35.360    35.358    35.360
qmax           71.594    71.634    71.658
amean          52.970    52.970    52.969
amin           52.303    52.302    52.306
amax           53.762    53.784    53.818
emean           0.321     0.321     0.321
emin            0.310     0.310     0.309
emax            0.332     0.332     0.332
imean           2.032     2.032     2.019
imin            1.786     1.783     1.784
imax            2.329     2.328     2.329
excite_mean     0.323     0.323     0.323
fracstop        1.000     1.000     1.000
cjmean          3.079     3.079     3.079

libcent 0       180.0     180.3     180.4
libamp  0       100.2      99.5     109.0
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       237.5     237.3     240.1
kozaiamp        179.8     179.6     179.9