Orbit Fit and Astrometric record for 33340

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: 33340     
# Created Tue Dec 12 02:36:26 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   62 observations of   63
# Arc:  17.22y
# First observation: 1998/11/14
#  Last observation: 2016/02/04
# Chi-squared of fit:   344.98 DOF:  118 RMS:  0.42
# Min/Max residuals:    -1.06    1.35
# Exact a, adot, b, bdot, g, gdot:
  1.892547E-05  4.203624E-02  1.211953E-06  6.533190E-04  3.375307E-02 -5.240334E-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
   -2.998668   55.254883    0.053649   -0.051675   -0.982044  2451131.795491
# Heliocentric elements and errors
Epoch:              2451132.5000  =  1998/11/15
Mean Anomaly:          338.79027 +/-     0.000
Argument of Peri:      323.23087 +/-     0.000
Long of Asc Node:      127.88343 +/-     0.000
Inclination:             3.03844 +/-     0.000
Eccentricity:         0.25520544 +/-    0.0000
Semi-Major Axis:     39.50732256 +/-    0.0000
Time of Perihelion: 2456476.2665 +/-       0.0
Perihelion:          29.42483878 +/-    0.0000
Aphelion:            49.58980634 +/-    0.0000
Period (y)              248.3274 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           17.47454005 +/-    0.0000
Ecliptic Y           25.08805676 +/-    0.0000
Ecliptic Z           -1.54981957 +/-    0.0000
Ecliptic XDOT        -0.00304265 +/-    0.0000
Ecliptic YDOT         0.00160588 +/-    0.0000
Ecliptic ZDOT         0.00007513 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   30.61333878 +/-    0.0000
Geocenter to KBO     29.62704616 +/-    0.0000
# Hcoef:  6.38

The following table shows the complete astrometric record for 33340. 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 (33340) followed by the observatory code and reference code for the source of the astrometry.

1998 11  14.29476  03 34 38.41   +16 09 54.8   21.9V 33340     691  Ca4140      
1998 11  14.31797  03 34 38.30   +16 09 54.2   21.8V 33340     691  Ca4140      
1998 11  14.34011  03 34 38.10   +16 09 53.7   21.7V 33340     691  Ca4140      
1998 11  26.30247  03 33 19.71   +16 05 27.6   21.7V 33340     691  Ca4140      
1998 11  26.32841  03 33 19.51   +16 05 26.8   21.7V 33340     691  Ca4140      
1998 11  26.35047  03 33 19.36   +16 05 26.7   21.7V 33340     691  Ca4140      
1999 03  18.15118  03 30 52.83   +16 06 23.2   21.0V 33340     691  Ca4140      
1999 03  18.15683  03 30 52.95   +16 06 22.7   21.3V 33340     691  Ca4140      
1999 03  19.12764  03 30 58.29   +16 06 47.9   21.6V 33340     691  Ca4140      
1999 03  19.13278  03 30 58.33   +16 06 48.1   21.3V 33340     691  Ca4140      
1999 03  20.12806  03 31 04.03   +16 07 14.4   21.4V 33340     691  Ca4140      
1999 03  20.13419  03 31 03.97   +16 07 13.6   20.7V 33340     691  Ca4140      
1999 10  07.49926  03 48 02.31   +16 58 34.8         33340     568  Ca7322      
1999 10  07.62775  03 48 01.75   +16 58 32.6         33340     568  Ca7322      
1999 10  09.55321  03 47 53.49   +16 57 58.2   21.2R 33340     568  Ca7322      
1999 10  09.57292  03 47 53.41   +16 57 57.8   21.2R 33340     568  Ca7322      
1999 10  30.32748  03 46 03.83   +16 51 07.3   21.2R 33340     688  Ca7322      
1999 10  30.39597  03 46 03.44   +16 51 06.6         33340     688  Ca7322      
1999 10  30.46538  03 46 02.95   +16 51 05.2         33340     688  Ca7322      
1999 11  04.44693  03 45 32.25   +16 49 17.4   20.6V 33340     691  Ca7322      
1999 11  04.47310  03 45 32.09   +16 49 16.8   21.1V 33340     691  Ca7322      
1999 11  10.43112  03 44 54.16   +16 47 07.3   21.3V 33340     691  Ca8498      
1999 11  10.45245  03 44 53.83   +16 47 06.4   21.4V 33340     691  Ca8498      
1999 11  10.47399  03 44 53.69   +16 47 05.9   21.8V 33340     691  Ca8498      
1999 11  16.01478  03 44 17.37   +16 45 06.0   20.5R 33340     621  Ca8498      
1999 11  16.03322  03 44 17.21   +16 45 05.2   20.4R 33340     621  Ca8498      
2000 01  07.91236  03 39 14.82   +16 30 48.7   21.1R 33340     621  Ca8498      
2000 01  13.97373  03 38 54.50   +16 30 12.4   20.8R 33340     621  Ca8498      
2000 09  23.44526  03 58 39.76   +17 34 59.3   21.0R 33340     568  Cc0757      
2000 09  23.50233  03 58 39.62   +17 34 58.6   21.0R 33340     568  Cc0757      
2000 09  23.57560  03 58 39.44   +17 34 57.8   20.9R 33340     568  Cc0757      
2000 09  24.46410  03 58 37.23   +17 34 47.4         33340     568  Cc0757      
2000 09  24.51465  03 58 37.10   +17 34 46.8   21.0R 33340     568  Cc0757      
2000 09  24.57914  03 58 36.93   +17 34 46.1   21.0R 33340     568  Cc0757      
2000 09  30.29057  03 58 20.35   +17 33 31.7   21.1R 33340     829  Cf6580      
2000 09  30.34356  03 58 20.17   +17 33 30.8         33340     829  Cf6580      
2000 09  30.35314  03 58 20.13   +17 33 30.8         33340     829  Cf6580      
2001 09  14.45755  04 08 53.74   +18 07 47.0   20.5  33340     644  Cj0787      
2001 11  14.94214  04 04 27.38   +17 52 21.4         33340     621  Ce2929      
2001 11  14.97260  04 04 27.17   +17 52 20.3   20.8R 33340     621  Ce2929      
2001 12  09.98825  04 01 39.54   +17 44 48.8   21.0R 33340     621  Ce2929      
2001 12  10.01870  04 01 39.33   +17 44 48.1   21.1R 33340     621  Ce2929      
2001 12  13.97580  04 01 14.09   +17 43 45.4   20.7R 33340     621  Ce2929      
2001 12  14.00654  04 01 13.90   +17 43 44.9   20.7R 33340     621  Ce2929      
2002 11  13.51613  04 14 54.71   +18 23 48.9         33340     644  Ch2868      
2002 11  24.27060  04 13 42.38   +18 20 40.8         33340     644  Ch2868      
2002 11  24.29156  04 13 42.22   +18 20 40.7         33340     644  Ch2868      
2002 11  24.31394  04 13 42.10   +18 20 40.3         33340     644  Ch2868      
2003 12  14.21992  04 21 51.98   +18 45 05.0         33340     691  Ck4105      
2003 12  14.24742  04 21 51.85   +18 45 04.5         33340     691  Ck4105      
2003 12  14.27480  04 21 51.63   +18 45 03.8         33340     691  Ck4105      
2006 01  31.234977 04 38 46.85   +19 33 28.9         33340     645  C~1ccw      
2006 01  31.235810 04 38 46.85   +19 33 28.9         33340     645  C~1ccw      
2006 01  31.238299 04 38 46.84   +19 33 28.9         33340     645  C~1ccw      
2009 08  24.21012  05 31 03.568  +21 05 29.57  21.1V 33340     950  C~0CDc      
2009 08  24.21721  05 31 03.637  +21 05 29.46  21.3V 33340     950  C~0CDc      
2009 08  24.22428  05 31 03.669  +21 05 29.55  21.0V 33340     950  C~0CDc      
2015 11  08.39489  06 37 20.02   +21 34 05.8   20.9R 33340     G37  C~1dtK      
2015 11  08.44430  06 37 19.84   +21 34 06.0         33340     G37  C~1dtK      
2015 11  08.51056  06 37 19.58   +21 34 06.0         33340     G37  C~1dtK      
2016 02  04.27350  06 28 12.35   +21 42 26.5   20.9R 33340     G37  C~1mEj      
2016 02  04.33142  06 28 12.03   +21 42 26.5         33340     G37  C~1mEj      
2016 02  04.39096  06 28 11.80   +21 42 26.4         33340     G37  C~1mEj      

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     0.26
  2   0.0001      0.00     0.95       0.00    -0.20
  3   0.0001      0.00     0.16       0.00    -0.19
  4   0.0329      0.00     0.15       0.00     0.10
  5   0.0329      0.00    -0.29       0.00    -0.14
  6   0.0330      0.00    -0.36       0.00     0.23
  7   0.3391      0.00    -0.92       0.00    -0.42
  8   0.3391      0.00     0.41       0.00    -1.06
  9   0.3418      0.00    -0.56       0.00    -0.36
 10   0.3418      0.00    -0.39       0.00    -0.29
 11   0.3445      0.00     0.43       0.00     0.59
 12   0.3445      0.00    -0.99       0.00    -0.37
 13   0.8958      0.00     0.07       0.00     0.48
 14   0.8962      0.00    -0.04       0.00     0.50
 15   0.9015      0.00    -0.19       0.00    -0.26
 16   0.9015      0.00    -0.05       0.00    -0.31
 17   0.9583      0.00     0.06       0.00    -0.20
 18   0.9585      0.00     0.51       0.00     0.56
 19   0.9587      0.00    -0.46       0.00     0.65
 20   0.9724      0.00    -0.44       0.00    -0.02
 21   0.9724      0.00    -0.34       0.00    -0.05
 22   0.9887      0.00 (   2.71)      0.00 (   0.15)
 23   0.9888      0.00    -0.14       0.00    -0.28
 24   0.9889      0.00    -0.11       0.00    -0.30
 25   1.0040      0.00     0.46       0.00     0.38
 26   1.0041      0.00    -0.09       0.00    -0.02
 27   1.1489      0.00     0.99       0.00     0.05
 28   1.1654      0.00     0.25       0.00    -0.62
 29   1.8594      0.00     0.18       0.00    -0.06
 30   1.8596      0.00     0.22       0.00    -0.10
 31   1.8598      0.00     0.32       0.00    -0.05
 32   1.8622      0.00     0.10       0.00     0.22
 33   1.8623      0.00     0.15       0.00     0.22
 34   1.8625      0.00     0.18       0.00     0.30
 35   1.8782      0.00     0.02       0.00     0.21
 36   1.8783      0.00    -0.01       0.00     0.04
 37   1.8783      0.00    -0.13       0.00     0.18
 38   2.8341      0.00     0.36       0.00    -0.20
 39   3.0025      0.00     0.48       0.00     1.09
 40   3.0025      0.00     0.41       0.00     0.57
 41   3.0710      0.00     0.34       0.00     0.51
 42   3.0711      0.00     0.18       0.00     0.31
 43   3.0819      0.00     0.21       0.00     0.12
 44   3.0820      0.00     0.29       0.00     0.10
 45   3.9979      0.00    -0.43       0.00     0.21
 46   4.0273      0.00    -0.45       0.00     0.18
 47   4.0274      0.00    -0.66       0.00     0.44
 48   4.0274      0.00    -0.13       0.00     0.42
 49   5.0812      0.00     0.17       0.00    -0.48
 50   5.0813      0.00     1.00       0.00    -0.60
 51   5.0814      0.00     0.47       0.00    -0.93
 52   7.2141      0.00    -0.03       0.00    -0.30
 53   7.2141      0.00     0.00       0.00    -0.30
 54   7.2141      0.00    -0.05       0.00    -0.30
 55  10.7759      0.00    -0.80       0.00    -0.01
 56  10.7760      0.00    -0.27       0.00    -0.13
 57  10.7760      0.00    -0.29       0.00    -0.04
 58  16.9832      0.00    -0.20       0.00     0.25
 59  16.9833      0.00    -0.13       0.00     0.36
 60  16.9835      0.00    -0.32       0.00     0.25
 61  17.2238      0.00     0.13       0.00     0.23
 62  17.2239      0.00     0.01       0.00    -0.15
 63  17.2241      0.00     1.35       0.00    -0.63

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.

33340    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.637    39.637    39.637
ecceobj         0.258     0.258     0.258
incobj          3.038     3.038     3.038
qmin           28.997    29.000    28.966
qmax           50.624    50.631    50.602
amean          39.456    39.456    39.456
amin           38.959    38.964    38.954
amax           40.022    40.007    40.026
emean           0.250     0.250     0.250
emin            0.234     0.235     0.234
emax            0.266     0.266     0.265
imean           2.033     2.027     2.037
imin            1.567     1.567     1.567
imax            2.739     2.736     2.740
excite_mean     0.253     0.253     0.253
fracstop        1.000     1.000     1.000
cjmean          2.978     2.978     2.978

libcent 0       180.1     179.8     180.1
libamp  0        97.9      97.9      98.1
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       167.8     167.9     168.0
kozaiamp        180.0     179.9     179.9