Orbit Fit and Astrometric record for 14XX40

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: 14XX40    
# Created Thu Oct 18 01:09:42 2018
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   21 observations of   21
# Arc:   6.05y
# First observation: 2012/03/21
#  Last observation: 2018/04/10
# Chi-squared of fit:    19.94 DOF:   36 RMS:  0.17
# Min/Max residuals:    -0.45    0.54
# Exact a, adot, b, bdot, g, gdot:
  2.032690E-05  4.276934E-02  4.893773E-06  1.034812E-02  3.168781E-02 -3.973866E-03
# Covariance matrix:
  3.6301E-13 -1.7473E-13  1.6454E-14 -2.1190E-14 -5.6927E-14 -4.2271E-13
 -1.7473E-13  1.9644E-13 -2.8397E-14  4.0102E-14 -5.3849E-14  7.8438E-13
  1.6454E-14 -2.8397E-14  3.0011E-13 -9.5849E-14  4.4333E-15 -1.3850E-13
 -2.1190E-14  4.0102E-14 -9.5849E-14  4.5303E-14 -1.4171E-14  1.9519E-13
 -5.6927E-14 -5.3849E-14  4.4333E-15 -1.4171E-14  3.4924E-13 -2.4536E-13
 -4.2271E-13  7.8438E-13 -1.3850E-13  1.9519E-13 -2.4536E-13  3.8194E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
  -14.567474  156.671047   -0.411599   -0.228998   -0.881213  2456007.801276
# Heliocentric elements and errors
Epoch:              2456008.5000  =  2012/03/22
Mean Anomaly:          357.69539 +/-     0.002
Argument of Peri:      324.88689 +/-     0.007
Long of Asc Node:      202.23231 +/-     0.000
Inclination:            19.69843 +/-     0.000
Eccentricity:         0.59910272 +/-    0.0001
Semi-Major Axis:     80.31875914 +/-    0.0203
Time of Perihelion: 2457691.6364 +/-      99.2
Perihelion:          32.19957180 +/-    0.0110
Aphelion:           128.43794649 +/-    0.0334
Period (y)              719.8362 +/-      0.27
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -29.04278493 +/-    0.0005
Ecliptic Y           12.07917356 +/-    0.0002
Ecliptic Z           -7.93728454 +/-    0.0001
Ecliptic XDOT        -0.00136957 +/-    0.0000
Ecliptic YDOT        -0.00343183 +/-    0.0000
Ecliptic ZDOT         0.00095180 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   32.44061694 +/-    0.0005
Geocenter to KBO     31.55797667 +/-    0.0006
# Hcoef:  7.12

The following table shows the complete astrometric record for 14XX40. 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 (14XX40) followed by the observatory code and reference code for the source of the astrometry.

2012 03  21.30051  10 12 13.871  -04 29 28.23  22.4w 14XX40    F51  C~2dZ2      
2012 03  21.31443  10 12 13.795  -04 29 27.48  22.3w 14XX40    F51  C~2dZ2      
2012 03  21.32834  10 12 13.716  -04 29 27.11  22.1w 14XX40    F51  C~2dZ2      
2012 03  21.34226  10 12 13.657  -04 29 26.31  22.2w 14XX40    F51  C~2dZ2      
2014 12  01.58849  10 48 36.054  -05 53 26.62  22.4w 14XX40    F51  C~1vXx      
2014 12  01.61482  10 48 36.080  -05 53 27.41  22.6w 14XX40    F51  C~1vXx      
2014 12  01.63967  10 48 36.138  -05 53 28.22  22.6w 14XX40    F51  C~1vXx      
2015 02  20.42742  10 45 15.224  -05 49 56.17  22.3w 14XX40    F51  C~1vXx      
2015 02  20.44040  10 45 15.184  -05 49 55.64  22.1w 14XX40    F51  C~1vXx      
2015 02  20.45308  10 45 15.107  -05 49 55.35  22.3w 14XX40    F51  C~1vXx      
2015 02  20.46578  10 45 15.013  -05 49 54.77  22.3w 14XX40    F51  C~1vXx      
2015 03  20.35264  10 42 46.716  -05 31 09.78  22.3w 14XX40    F51  C~1vXx      
2015 03  20.36532  10 42 46.647  -05 31 09.53  22.1w 14XX40    F51  C~1vXx      
2015 03  20.37800  10 42 46.611  -05 31 08.63  22.2w 14XX40    F51  C~1vXx      
2015 03  20.42538  10 42 46.356  -05 31 06.39  22.4w 14XX40    F51  C~1vXx      
2015 03  21.38678  10 42 41.573  -05 30 23.30  22.1w 14XX40    F51  C~1vXx      
2015 03  21.39940  10 42 41.513  -05 30 22.68  22.5w 14XX40    F51  C~1vXx      
2015 03  21.41193  10 42 41.444  -05 30 22.18  22.0w 14XX40    F51  C~1vXx      
2015 03  21.42458  10 42 41.383  -05 30 21.56  22.2w 14XX40    F51  C~1vXx      
2018 04  10.16567  11 11 54.146  -06 10 49.39  22.0R 14XX40    G37  C~2dZ2      
2018 04  10.21124  11 11 54.015  -06 10 47.56        14XX40    G37  C~2dZ2      

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     0.27       0.00    -0.06
  2   0.0000      0.00     0.10       0.00     0.06
  3   0.0001      0.00    -0.12       0.00    -0.19
  4   0.0001      0.00    -0.04       0.00    -0.02
  5   2.6976      0.00     0.11       0.00     0.03
  6   2.6976      0.00    -0.16       0.00     0.02
  7   2.6977      0.00     0.10       0.00    -0.05
  8   2.9189      0.00    -0.19       0.00     0.03
  9   2.9189      0.00     0.27       0.00     0.12
 10   2.9190      0.00     0.16       0.00    -0.02
 11   2.9190      0.00    -0.21       0.00     0.13
 12   2.9954      0.00    -0.07       0.00    -0.02
 13   2.9954      0.00    -0.13       0.00    -0.34
 14   2.9954      0.00     0.30       0.00    -0.00
 15   2.9956      0.00     0.11       0.00     0.11
 16   2.9982      0.00     0.06       0.00    -0.06
 17   2.9982      0.00     0.12       0.00    -0.01
 18   2.9983      0.00     0.03       0.00    -0.07
 19   2.9983      0.00     0.08       0.00    -0.03
 20   6.0530      0.00    -0.45       0.00     0.06
 21   6.0531      0.00     0.54       0.00    -0.18

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.

14XX40    quality flag:3

Type:       CENTAURS  CENTAURS  CENTAURS

axisobj        80.200    80.199    80.201
ecceobj         0.598     0.598     0.598
incobj         19.692    19.692    19.692
qmin           29.809    29.380    30.242
qmax          157.605   137.869   134.945
amean          85.332    78.236    80.038
amin           78.715    68.073    76.390
amax           94.345    85.088    83.238
emean           0.629     0.597     0.598
emin            0.588     0.550     0.572
emax            0.673     0.628     0.627
imean          18.274    18.570    19.766
imin           15.878    15.980    17.196
imax           20.520    20.517    20.622
excite_mean     0.704     0.677     0.687
fracstop        1.000     1.000     1.000
cjmean          2.834     2.835     2.835

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       198.0     176.5     142.4
kozaiamp        180.0     180.0     180.0