Orbit Fit and Astrometric record for 341275

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: 341275    
# Created Tue Oct 17 01:36:42 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   30 observations of   34
# Arc:   6.14y
# First observation: 2007/09/15
#  Last observation: 2013/11/06
# Chi-squared of fit:    76.29 DOF:   54 RMS:  0.28
# Min/Max residuals:    -0.47    0.87
# Exact a, adot, b, bdot, g, gdot:
  2.275443E-05  7.957297E-02  6.403977E-06  2.066254E-02  5.606383E-02 -1.706176E-02
# 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
   26.239778   10.871533    0.322177    0.421395   -0.854778  2454358.736204
# Heliocentric elements and errors
Epoch:              2454358.5000  =  2007/09/15
Mean Anomaly:          297.85627 +/-     0.000
Argument of Peri:      149.54984 +/-     0.000
Long of Asc Node:      311.80935 +/-     0.000
Inclination:            28.75703 +/-     0.000
Eccentricity:         0.23165732 +/-    0.0000
Semi-Major Axis:     19.89356755 +/-    0.0000
Time of Perihelion: 2459953.0124 +/-       0.0
Perihelion:          15.28507698 +/-    0.0000
Aphelion:            24.50205813 +/-    0.0000
Period (y)               88.7314 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           16.70732349 +/-    0.0000
Ecliptic Y            2.87638906 +/-    0.0000
Ecliptic Z            7.88630122 +/-    0.0000
Ecliptic XDOT        -0.00189866 +/-    0.0000
Ecliptic YDOT         0.00358953 +/-    0.0000
Ecliptic ZDOT         0.00053658 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   18.69774130 +/-    0.0000
Geocenter to KBO     17.83692850 +/-    0.0000
# Hcoef:  8.85

The following table shows the complete astrometric record for 341275. 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 (341275) followed by the observatory code and reference code for the source of the astrometry.

2007 09  15.23545  23 54 37.59   +28 13 30.6   21.3R 341275    675  Cw9865      
2007 09  15.28197  23 54 37.04   +28 13 29.0   21.7R 341275    675  Cw9865      
2007 09  16.14678  23 54 27.58   +28 13 03.8   21.0R 341275    675  Cw9865      
2007 09  16.18999  23 54 27.09   +28 13 02.0   21.0R 341275    675  Cw9865      
2007 10  02.24205  23 51 29.59   +28 01 12.9         341275    688  Cw9865      
2007 10  02.38616  23 51 27.94   +28 01 04.3         341275    688  Cw9865      
2007 11  17.12624  23 45 07.1    +27 01 00.7         341275    688 YCw9865      
2007 11  17.19125  23 45 06.8    +27 00 54.6         341275    688 YCw9865      
2007 11  17.24245  23 45 06.6    +27 00 50.5         341275    688 YCw9865      
2008 06  30.37214  00 18 49.45   +30 10 35.4         341275    675  Cz4063      
2008 06  30.40437  00 18 49.53   +30 10 39.6         341275    675  Cz4063      
2008 06  30.43527  00 18 49.56   +30 10 43.4         341275    675  Cz4063      
2008 06  30.47065  00 18 49.65   +30 10 47.5         341275    675  Cz4063      
2008 08  09.26074  00 17 12.68   +31 07 28.9         341275    675  Cz4063      
2008 08  09.31778  00 17 12.30   +31 07 32.3         341275    675  Cz4063      
2008 08  09.37151  00 17 11.94   +31 07 35.3         341275    675  Cz4063      
2008 08  09.42665  00 17 11.56   +31 07 38.0         341275    675  Cz4063      
2008 09  20.94478  00 10 22.03   +31 15 01.8   21.0C 341275    J47  Cz6780      
2008 09  20.95016  00 10 22.02   +31 15 01.5   21.2C 341275    J47  Cz6780      
2008 09  20.95555  00 10 21.96   +31 15 01.2   21.3C 341275    J47  Cz6780      
2009 09  18.40622  00 29 38.11   +34 18 59.1   20.9R 341275    688  C~09cc      
2009 09  18.45193  00 29 37.56   +34 18 58.2         341275    688  C~09cc      
2011 01  09.09796  00 37 47.42   +34 54 51.1   20.4R 341275    695  C~0U4U      
2011 01  09.15685  00 37 47.73   +34 54 47.1         341275    695  C~0U4U      
2011 12  26.14760  00 58 24.04   +38 06 56.4   20.6R 341275    688  C~0bdi      
2011 12  26.25515  00 58 24.08   +38 06 45.8         341275    688  C~0bdi      
2012 09  13.11590  01 40 44.46   +42 38 09.7         341275    I17  C~0iZR      
2012 09  13.14754  01 40 44.12   +42 38 10.5         341275    I17  C~0iZR      
2012 09  13.18098  01 40 43.80   +42 38 12.5         341275    I17  C~0iZR      
2013 11  06.27419  01 57 52.77   +44 45 09.2   20.6R 341275    G37  C~0zBM      
2013 11  06.33220  01 57 51.91   +44 45 05.1         341275    G37  C~0zBM      
2014 12  29.28629  02 19 58.964  +45 25 45.54  20.6i 341275    F51  C~1GGR      
2014 12  29.30028  02 19 58.930  +45 25 44.20  20.5i 341275    F51  C~1GGR      
2014 12  29.31378  02 19 58.826  +45 25 42.13  20.8i 341275    F51  C~1GGR      

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 (  -0.22)      0.00 (  -4.85)
  2   0.0001      0.00    -0.32       0.00    -0.40
  3   0.0025      0.00     0.53       0.00     0.15
  4   0.0026      0.00     0.40       0.00    -0.38
  5   0.0466      0.00     0.87       0.00     0.06
  6   0.0470      0.00     0.03       0.00    -0.27
  7   0.1722      0.00    -0.32       0.00     0.29
  8   0.1724      0.00    -0.25       0.00    -0.14
  9   0.1725      0.00     0.33       0.00     0.24
 10   0.7916      0.00    -0.16       0.00    -0.47
 11   0.7917      0.00     0.14       0.00     0.08
 12   0.7918      0.00    -0.25       0.00     0.38
 13   0.7919      0.00     0.16       0.00     0.49
 14   0.9008      0.00     0.06       0.00    -0.34
 15   0.9010      0.00     0.08       0.00    -0.04
 16   0.9011      0.00     0.13       0.00     0.07
 17   0.9013      0.00     0.05       0.00    -0.17
 18   1.0177      0.00 (   3.04)      0.00 (   2.90)
 19   1.0177      0.00 (   3.83)      0.00 (   2.77)
 20   1.0177      0.00 (   3.88)      0.00 (   2.64)
 21   2.0101      0.00     0.29       0.00     0.19
 22   2.0102      0.00     0.15       0.00     0.09
 23   3.3179      0.00    -0.33       0.00     0.24
 24   3.3181      0.00    -0.32       0.00     0.21
 25   4.2790      0.00    -0.17       0.00     0.07
 26   4.2793      0.00     0.20       0.00    -0.02
 27   4.9963      0.00    -0.11       0.00     0.24
 28   4.9963      0.00    -0.32       0.00    -0.19
 29   4.9964      0.00     0.06       0.00     0.52
 30   6.1438      0.00     0.24       0.00     0.14
 31   6.1440      0.00     0.03       0.00     0.07
 32   7.2883      0.00     0.02       0.00    -0.21
 33   7.2883      0.00     0.61       0.00     0.07
 34   7.2884      0.00     0.11       0.00    -0.43

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.

341275    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        20.019    20.019    20.019
ecceobj         0.233     0.233     0.233
incobj         28.753    28.753    28.753
qmin           15.151    15.123    15.249
qmax           24.810    24.906    24.831
amean          19.873    19.857    19.883
amin           19.598    19.624    19.652
amax           20.162    20.083    20.135
emean           0.199     0.190     0.216
emin            0.110     0.085     0.173
emax            0.239     0.240     0.238
imean          30.335    30.132    30.247
imin           29.489    28.899    29.541
imax           31.808    31.381    31.598
excite_mean     0.544     0.538     0.548
fracstop        0.023     0.031     0.021
cjmean          2.892     2.898     2.888

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       209.7     213.6     210.2
kozaiamp         54.9      47.1      57.4