Orbit Fit and Astrometric record for 119956

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: 119956    
# Created Tue Oct 24 01:36:28 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   26 observations of   27
# Arc:  13.11y
# First observation: 2000/09/03
#  Last observation: 2013/10/13
# Chi-squared of fit:    75.69 DOF:   46 RMS:  0.30
# Min/Max residuals:    -1.02    0.63
# Exact a, adot, b, bdot, g, gdot:
  1.542730E-05  2.411391E-02  2.631519E-06 -8.894296E-04  2.459533E-02  4.160382E-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
   -3.529387  -16.125713    0.054864   -0.061964   -1.001436  2451790.792720
# Heliocentric elements and errors
Epoch:              2451790.5000  =  2000/09/03
Mean Anomaly:           64.57878 +/-     0.000
Argument of Peri:      154.42650 +/-     0.000
Long of Asc Node:      105.64228 +/-     0.000
Inclination:             4.05182 +/-     0.000
Eccentricity:         0.17192725 +/-    0.0000
Semi-Major Axis:     43.72961842 +/-    0.0000
Time of Perihelion: 2432843.1143 +/-       0.0
Perihelion:          36.21130522 +/-    0.0000
Aphelion:            51.24793162 +/-    0.0000
Period (y)              289.1823 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           39.93870809 +/-    0.0000
Ecliptic Y          -11.59761916 +/-    0.0000
Ecliptic Z           -2.50280333 +/-    0.0000
Ecliptic XDOT         0.00117640 +/-    0.0000
Ecliptic YDOT         0.00245720 +/-    0.0000
Ecliptic ZDOT        -0.00012718 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.66365796 +/-    0.0000
Geocenter to KBO     40.65804617 +/-    0.0000
# Hcoef:  6.23

The following table shows the complete astrometric record for 119956. 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 (119956) followed by the observatory code and reference code for the source of the astrometry.

2000 09  03.291977 23 06 04.60   -09 35 56.5   22.4V 119956    645  C~1RW9      
2000 09  03.292806 23 06 04.60   -09 35 56.5   21.9V 119956    645  C~1RW9      
2000 09  03.295294 23 06 04.58   -09 35 56.5   22.7V 119956    645  C~1RW9      
2002 08  10.42074  23 18 08.71   -08 25 43.7   21.2R 119956    807  Cg3357      
2002 08  11.36045  23 18 05.00   -08 26 08.7         119956    807  Cg3357      
2002 08  11.42039  23 18 04.76   -08 26 10.3         119956    807  Cg3357      
2002 09  09.23780  23 16 02.83   -08 39 53.5   21.7R 119956    662  Cg5879      
2002 09  09.33005  23 16 02.40   -08 39 56.1         119956    662  Cg5879      
2002 11  04.10731  23 12 33.94   -08 59 43.4   22.3R 119956    688  Cg5879      
2002 11  04.20792  23 12 33.68   -08 59 44.6         119956    688  Cg5879      
2003 10  24.14093  23 18 08.33   -08 28 23.8   22.2R 119956    695  Cl4338      
2003 10  24.26302  23 18 07.94   -08 28 25.7         119956    695  Cl4338      
2004 08  23.15718  23 27 22.71   -07 33 18.6   22.5R 119956    304  Cl4338      
2004 08  23.29061  23 27 22.15   -07 33 22.4         119956    304  Cl4338      
2004 10  11.20928  23 23 52.68   -07 55 29.1   22.1R 119956    695  Cl8391      
2004 10  11.29954  23 23 52.33   -07 55 31.3         119956    695  Cl8391      
2005 08  09.17696  23 33 14.58   -06 57 37.4   21.5R 119956    807  Co3842      
2005 08  10.16083  23 33 11.20   -06 58 02.9         119956    807  Co3842      
2005 08  10.29664  23 33 10.73   -06 58 06.5         119956    807  Co3842      
2005 10  01.25077  23 29 33.28   -07 22 18.3   22.0R 119956    688  Co3842      
2005 10  01.34809  23 29 32.88   -07 22 20.9         119956    688  Co3842      
2008 09  08.45310  23 45 53.49   -05 44 15.2   24.2R 119956    250  S~06HB      
2008 09  08.45935  23 45 53.47   -05 44 15.4         119956    250  S~06HB      
2008 09  08.46560  23 45 53.44   -05 44 15.6         119956    250  S~06HB      
2008 09  08.47185  23 45 53.41   -05 44 15.8         119956    250  S~06HB      
2013 10  13.130162 00 07 05.35   -03 35 24.9         119956    W84  C~1QNU      
2013 10  13.131562 00 07 05.33   -03 35 25.1         119956    W84  C~1QNU      

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    -0.17       0.00    -1.02
  2   0.0000      0.00     0.38       0.00    -0.56
  3   0.0000      0.00     0.25       0.00    -0.49
  4   1.9333      0.00 (   2.91)      0.00 (  -0.35)
  5   1.9358      0.00    -0.09       0.00    -0.06
  6   1.9360      0.00    -0.25       0.00    -0.05
  7   2.0149      0.00     0.04       0.00     0.57
  8   2.0152      0.00    -0.10       0.00     0.63
  9   2.1679      0.00    -0.13       0.00     0.48
 10   2.1681      0.00    -0.57       0.00     0.24
 11   3.1372      0.00     0.05       0.00     0.02
 12   3.1375      0.00     0.02       0.00     0.06
 13   3.9695      0.00     0.43       0.00    -0.02
 14   3.9699      0.00     0.40       0.00    -0.01
 15   4.1038      0.00     0.02       0.00     0.24
 16   4.1041      0.00     0.04       0.00    -0.00
 17   4.9306      0.00    -0.03       0.00     0.01
 18   4.9332      0.00    -0.05       0.00    -0.15
 19   4.9336      0.00     0.10       0.00    -0.23
 20   5.0759      0.00     0.09       0.00     0.17
 21   5.0761      0.00     0.35       0.00     0.04
 22   8.0141      0.00    -0.15       0.00     0.28
 23   8.0141      0.00    -0.05       0.00     0.27
 24   8.0142      0.00    -0.10       0.00     0.25
 25   8.0142      0.00    -0.14       0.00     0.23
 26  13.1084      0.00     0.36       0.00    -0.27
 27  13.1084      0.00     0.14       0.00    -0.44

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.

119956    quality flag:3

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

axisobj        43.829    43.829    43.829
ecceobj         0.173     0.173     0.173
incobj          4.051     4.051     4.051
qmin           35.424    35.443    35.428
qmax           52.695    52.688    52.700
amean          43.727    43.727    43.727
amin           43.227    43.227    43.226
amax           44.286    44.283    44.288
emean           0.176     0.176     0.176
emin            0.163     0.162     0.163
emax            0.190     0.190     0.190
imean           2.502     2.551     2.497
imin            1.453     1.455     1.451
imax            3.640     3.665     3.651
excite_mean     0.182     0.182     0.182
fracstop        1.000     1.000     1.000
cjmean          3.058     3.058     3.058

libcent 0       182.2     183.5     182.0
libamp  0       129.9     128.6     130.1
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       154.1     167.8     138.6
kozaiamp        180.0     180.0     180.0