Orbit Fit and Astrometric record for 119315

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: 119315    
# Created Tue Oct 24 01:36:28 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   38 observations of   38
# Arc:  14.50y
# First observation: 2001/09/12
#  Last observation: 2016/03/13
# Chi-squared of fit:   195.13 DOF:   70 RMS:  0.40
# Min/Max residuals:    -2.11    1.19
# Exact a, adot, b, bdot, g, gdot:
  2.429462E-05  1.084800E-01  7.774249E-06  3.416197E-02  6.844055E-02  1.929914E-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
    0.720127   20.326292    0.517508    0.010706   -0.861401  2452164.890633
# Heliocentric elements and errors
Epoch:              2452164.5000  =  2001/09/12
Mean Anomaly:           41.39460 +/-     0.000
Argument of Peri:      305.08804 +/-     0.000
Long of Asc Node:       16.26127 +/-     0.000
Inclination:            17.42427 +/-     0.000
Eccentricity:         0.17637948 +/-    0.0000
Semi-Major Axis:     17.51037010 +/-    0.0000
Time of Perihelion: 2449087.1092 +/-       0.0
Perihelion:          14.42190013 +/-    0.0000
Aphelion:            20.59884006 +/-    0.0000
Period (y)               73.2742 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           14.69025073 +/-    0.0000
Ecliptic Y            4.89488565 +/-    0.0000
Ecliptic Z            0.18376743 +/-    0.0000
Ecliptic XDOT        -0.00080829 +/-    0.0000
Ecliptic YDOT         0.00433257 +/-    0.0000
Ecliptic ZDOT         0.00137640 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   15.48533302 +/-    0.0000
Geocenter to KBO     14.61119027 +/-    0.0000
# Hcoef:  9.60

The following table shows the complete astrometric record for 119315. 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 (119315) followed by the observatory code and reference code for the source of the astrometry.

2001 09  12.38989  01 13 59.24   +08 36 33.2   20.3R 119315    695  Cd8170      
2001 09  12.47721  01 13 58.37   +08 36 29.8         119315    695  Cd8170      
2001 09  19.38393  01 12 47.61   +08 31 56.2   21.6V 119315    691  Cd6589      
2001 09  19.41699  01 12 47.25   +08 31 54.7   22.0V 119315    691  Cd6589      
2001 09  19.45307  01 12 46.87   +08 31 53.3   21.7V 119315    691  Cd6589      
2001 09  20.31056  01 12 37.71   +08 31 16.3   21.8V 119315    691  Cd6589      
2001 09  20.33580  01 12 37.45   +08 31 15.5   22.4V 119315    691  Cd6589      
2001 09  20.36140  01 12 37.16   +08 31 14.6   21.6V 119315    691  Cd6589      
2001 09  22.34424  01 12 15.61   +08 29 47.8   21.5V 119315    691  Cd6589      
2001 09  22.37127  01 12 15.32   +08 29 46.8   21.6V 119315    691  Cd6589      
2001 09  22.39871  01 12 15.03   +08 29 45.4   22.3V 119315    691  Cd6589      
2001 09  23.31722  01 12 04.89   +08 29 04.8         119315    290  Cd6589      
2001 09  23.36514  01 12 04.36   +08 29 02.7         119315    290  Cd6589      
2001 09  24.31072  01 11 53.85   +08 28 20.5   21.3V 119315    691  Cd6589      
2001 10  12.29294  01 08 24.26   +08 13 31.3   21.4V 119315    691  Cd8170      
2001 10  12.31947  01 08 23.89   +08 13 30.3   21.1V 119315    691  Cd8170      
2001 10  18.34325  01 07 12.50   +08 08 18.0   20.5R 119315    688  Cd9371      
2001 10  18.37659  01 07 12.08   +08 08 16.2         119315    688  Cd9371      
2001 10  25.22552  01 05 52.59   +08 02 27.5   21.6V 119315    291  Cd9371      
2001 10  25.23498  01 05 52.49   +08 02 27.1   21.4V 119315    291  Cd9371      
2001 11  14.14249  01 02 26.32   +07 47 37.6   21.3V 119315    691  Ce0527      
2001 11  14.16987  01 02 26.04   +07 47 36.8   21.6V 119315    691  Ce0527      
2001 11  14.19535  01 02 25.82   +07 47 34.7   20.9V 119315    691  Ce0527      
2002 09  11.42472  01 34 22.74   +12 39 48.3   20.8R 119315    662  Cg5842      
2002 09  11.47951  01 34 22.24   +12 39 47.4         119315    662  Cg5842      
2002 10  11.19985  01 29 04.06   +12 21 13.2         119315    290  Cg5842      
2002 10  11.24265  01 29 03.54   +12 21 11.3         119315    290  Cg5842      
2003 10  17.21268  01 48 14.14   +16 09 50.1   22.0V 119315    691  Ci7948      
2003 10  17.24942  01 48 13.69   +16 09 48.3   21.5V 119315    691  Ci7948      
2003 10  17.27854  01 48 13.34   +16 09 47.1   21.7V 119315    691  Ci7948      
2005 09  30.36639  02 32 04.62   +23 15 23.3   21.1R 119315    688  Co3586      
2005 09  30.45773  02 32 03.70   +23 15 22.1         119315    688  Co3586      
2006 08  04.19118  02 55 14.57   +25 44 24.2   22.9R 119315    250  S~06HB      
2006 08  04.19558  02 55 14.59   +25 44 24.6         119315    250  S~06HB      
2006 08  04.19997  02 55 14.61   +25 44 24.9         119315    250  S~06HB      
2006 08  04.20437  02 55 14.63   +25 44 25.2         119315    250  S~06HB      
2016 03  13.12915  05 45 14.12   +40 16 51.0   22.3R 119315    G37  C~1zfq      
2016 03  13.18377  05 45 14.27   +40 16 48.5         119315    G37  C~1zfq      

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     0.08       0.00    -2.11
  2   0.0002      0.00     0.28       0.00    -0.08
  3   0.0191      0.00    -0.00       0.00    -0.21
  4   0.0192      0.00    -0.01       0.00    -0.31
  5   0.0193      0.00     0.17       0.00    -0.18
  6   0.0217      0.00     0.17       0.00    -0.59
  7   0.0218      0.00     0.42       0.00    -0.31
  8   0.0218      0.00     0.29       0.00    -0.11
  9   0.0273      0.00     0.26       0.00    -0.28
 10   0.0273      0.00     0.44       0.00    -0.08
 11   0.0274      0.00     0.69       0.00    -0.26
 12   0.0299      0.00     0.11       0.00     0.18
 13   0.0300      0.00     0.26       0.00     0.24
 14   0.0326      0.00    -0.09       0.00     0.85
 15   0.0819      0.00     0.30       0.00    -0.21
 16   0.0819      0.00    -0.43       0.00     0.16
 17   0.0984      0.00     0.44       0.00    -0.29
 18   0.0985      0.00     0.12       0.00    -0.37
 19   0.1173      0.00     0.07       0.00    -0.24
 20   0.1173      0.00     0.22       0.00    -0.16
 21   0.1718      0.00     0.11       0.00     0.96
 22   0.1719      0.00    -0.31       0.00     1.19
 23   0.1720      0.00    -0.08       0.00     0.05
 24   0.9967      0.00     0.20       0.00     0.03
 25   0.9968      0.00     0.15       0.00     0.46
 26   1.0782      0.00     0.02       0.00    -0.03
 27   1.0783      0.00    -0.03       0.00     0.09
 28   2.0940      0.00    -0.17       0.00     0.14
 29   2.0941      0.00    -0.19       0.00    -0.04
 30   2.0942      0.00    -0.11       0.00     0.05
 31   4.0492      0.00    -0.33       0.00     0.03
 32   4.0495      0.00    -0.41       0.00    -0.19
 33   4.8920      0.00    -0.11       0.00     0.21
 34   4.8920      0.00    -0.09       0.00     0.33
 35   4.8920      0.00    -0.08       0.00     0.35
 36   4.8920      0.00    -0.06       0.00     0.37
 37  14.4989      0.00    -0.36       0.00    -0.25
 38  14.4991      0.00     0.27       0.00     0.01

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.

119315    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        17.563    17.563    17.563
ecceobj         0.179     0.179     0.179
incobj         17.406    17.406    17.406
qmin           13.839    13.845    13.532
qmax           21.651    21.655    21.655
amean          17.577    17.656    17.539
amin           17.405    17.342    17.273
amax           17.842    17.829    17.792
emean           0.193     0.198     0.196
emin            0.173     0.173     0.173
emax            0.213     0.219     0.225
imean          17.606    17.768    17.833
imin           17.255    17.260    17.318
imax           18.265    18.897    18.734
excite_mean     0.359     0.364     0.363
fracstop        0.004     0.006     0.006
cjmean          3.137     3.131     3.138

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       203.9     181.5     170.7
kozaiamp        177.8     179.3     178.9