Orbit Fit and Astrometric record for 08CT190

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: 08CT190   
# Created Wed Oct 18 01:37:46 2017
# Orbit generated from Bernstein formalism
# Fitting   48 observations of   51
# Arc:  14.31y
# First observation: 2002/01/14
#  Last observation: 2016/05/07
Preliminary a, adot, b, bdot, g, gdot:
  -0.003309   0.030618  -0.002450   0.021858   0.029657   0.000000
# Chi-squared of fit:    97.73 DOF:   90 RMS:  0.25
# Min/Max residuals:    -0.68    0.52
# Exact a, adot, b, bdot, g, gdot:
  1.594727E-05  2.893854E-02  1.178037E-05  2.058618E-02  2.914200E-02 -2.807341E-03
# Covariance matrix:
  1.0678E-13 -1.9311E-14  1.0402E-14 -6.7019E-15  7.0803E-15 -2.7935E-14
 -1.9311E-14  8.3930E-15 -6.8049E-15  4.7933E-15  5.5693E-15  1.9093E-14
  1.0402E-14 -6.8049E-15  1.0014E-13 -1.5750E-14  1.4304E-15 -2.1050E-14
 -6.7019E-15  4.7933E-15 -1.5750E-14  5.2975E-15  2.0316E-15  1.4220E-14
  7.0803E-15  5.5693E-15  1.4304E-15  2.0316E-15  7.4674E-14  2.0619E-15
 -2.7935E-14  1.9093E-14 -2.1050E-14  1.4220E-14  2.0619E-15  5.7846E-14
#      lat0       lon0       xBary       yBary       zBary        JD0
   17.402571  126.213750    0.203157    0.286393   -0.914038  2452288.907043
# Heliocentric elements and errors
Epoch:              2452280.5000  =  2002/01/06
Mean Anomaly:          351.05247 +/-     0.001
Argument of Peri:       47.16677 +/-     0.002
Long of Asc Node:      103.59444 +/-     0.000
Inclination:            38.78436 +/-     0.000
Eccentricity:         0.34730614 +/-    0.0000
Semi-Major Axis:     53.18797879 +/-    0.0034
Time of Perihelion: 2455801.9325 +/-       0.4
Perihelion:          34.71546697 +/-    0.0029
Aphelion:            71.66049060 +/-    0.0049
Period (y)              387.9077 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -19.74609240 +/-    0.0002
Ecliptic Y           27.31650697 +/-    0.0002
Ecliptic Z           10.26337141 +/-    0.0001
Ecliptic XDOT        -0.00171164 +/-    0.0000
Ecliptic YDOT        -0.00227640 +/-    0.0000
Ecliptic ZDOT         0.00176685 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   35.23402490 +/-    0.0002
Geocenter to KBO     34.31473338 +/-    0.0003
# Hcoef:  5.46

The following table shows the complete astrometric record for 08CT190. 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 (08CT190) followed by the observatory code and reference code for the source of the astrometry.

2002 01  14.406300 08 55 17.73   +35 29 46.0   20.7V 08CT190   645  C~2KuG      
2002 01  14.407129 08 55 17.73   +35 29 46.0   20.6V 08CT190   645  C~2KuG      
2002 01  14.409617 08 55 17.76   +35 29 46.3   21.5V 08CT190   645  C~2KuG      
2002 02  08.215165 08 52 33.29   +35 44 43.0   20.9V 08CT190   645  C~2KuG      
2002 02  08.215995 08 52 33.29   +35 44 43.1   20.7V 08CT190   645  C~2KuG      
2002 02  08.218483 08 52 33.28   +35 44 43.2   21.5V 08CT190   645  C~2KuG      
2002 02  08.25931  08 52 32.98   +35 44 44.6   20.1r 08CT190   705  C~0nKo      
2002 02  08.26014  08 52 32.98   +35 44 44.7         08CT190   705  C~0nKo      
2002 02  08.26263  08 52 32.95   +35 44 44.7         08CT190   705  C~0nKo      
2002 02  12.35304  08 52 05.96   +35 46 37.0   21. R 08CT190   644  C~0X6J      
2002 02  12.39759  08 52 05.66   +35 46 38.1         08CT190   644  C~0X6J      
2002 11  07.454006 09 08 11.76   +35 13 28.8   21.1V 08CT190   645  C~1ReP      
2002 11  07.454835 09 08 11.76   +35 13 28.8   20.8V 08CT190   645  C~1ReP      
2002 11  07.457323 09 08 11.77   +35 13 28.9   21.6V 08CT190   645  C~1ReP      
2008 02  09.48728  09 52 54.32   +38 53 04.1   21.1R 08CT190   675  Cy9836      
2008 02  09.53457  09 52 53.98   +38 53 05.3   21.0R 08CT190   675  Cy9836      
2008 02  10.35833  09 52 48.43   +38 53 39.3   21.5R 08CT190   675  Cy9836      
2008 02  10.40611  09 52 48.16   +38 53 41.0   21.3R 08CT190   675  Cy9836      
2008 02  27.15774  09 50 54.76   +39 02 55.5         08CT190   688  Cy9836      
2008 02  27.24540  09 50 54.16   +39 02 57.5         08CT190   688  Cy9836      
2008 03  12.14846  09 49 26.22   +39 07 22.4         08CT190   675  Cy9836      
2008 03  12.29903  09 49 25.29   +39 07 24.1         08CT190   675  Cy9836      
2008 03  12.36855  09 49 24.88   +39 07 25.1         08CT190   675  Cy9836      
2008 04  02.20838  09 47 40.30   +39 08 03.1         08CT190   675  Cy9836      
2008 05  03.24090  09 46 35.56   +38 57 08.6         08CT190   675  Cy9836      
2008 05  04.21209  09 46 35.56   +38 56 36.8         08CT190   675  Cy9836      
2008 10  25.45330  10 06 19.32   +37 41 32.0         08CT190   695  C~01NQ      
2008 10  25.48941  10 06 19.50   +37 41 33.1         08CT190   695  C~01NQ      
2008 10  27.40825  10 06 29.31   +37 42 29.7         08CT190   695  C~01NQ      
2008 10  27.44105  10 06 29.46   +37 42 30.4         08CT190   695  C~01NQ      
2009 02  26.32375  10 01 31.86   +39 23 40.2   20.5R 08CT190   688  C~04sR      
2009 02  26.36956  10 01 31.56   +39 23 41.5         08CT190   688  C~04sR      
2009 03  12.13214  10 00 02.87   +39 28 31.1         08CT190   675  C~05YM      
2009 03  13.24076  09 59 56.08   +39 28 46.1         08CT190   675  C~05YM      
2009 03  24.19264  09 58 54.38   +39 30 08.7   20.7R 08CT190   688  C~05YM      
2009 03  24.24475  09 58 54.09   +39 30 08.9         08CT190   688  C~05YM      
2009 03  25.18686  09 58 49.26   +39 30 10.2         08CT190   688  C~05YM      
2009 03  25.27341  09 58 48.81   +39 30 10.3         08CT190   688  C~05YM      
2010 03  09.86696  10 11 00.78   +39 45 25.8   20.5V 08CT190   A74  C~0Elr      
2010 03  09.90745  10 11 00.55   +39 45 26.5   20.9V 08CT190   A74  C~0Elr      
2010 03  09.92287  10 11 00.49   +39 45 26.8   20.8V 08CT190   A74  C~0Elr      
2011 01  10.46484  10 27 47.15   +39 14 14.2   20.6R 08CT190   695  C~0U4X      
2011 01  10.51359  10 27 46.95   +39 14 17.5         08CT190   695  C~0U4X      
2011 01  10.55114  10 27 46.75   +39 14 19.2         08CT190   695  C~0U4X      
2011 12  26.41367  10 39 17.02   +39 05 43.5   20.6R 08CT190   688  C~0be2      
2011 12  26.48007  10 39 16.88   +39 05 47.9         08CT190   688  C~0be2      
2013 03  10.06371  10 43 35.17   +40 15 39.8         08CT190   I17  C~0pqn      
2013 03  10.11777  10 43 34.79   +40 15 40.7         08CT190   I17  C~0pqn      
2013 03  10.15122  10 43 34.56   +40 15 42.6         08CT190   I17  C~0pqn      
2016 05  06.93532  11 11 26.01   +40 09 30.8   20.7  08CT190   104  C~1sd1      
2016 05  07.08989  11 11 25.64   +40 09 26.5   21.0  08CT190   104  C~1sd1      

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    -0.05       0.00    -0.13
  2   0.0000      0.00     0.02       0.00    -0.14
  3   0.0000      0.26     0.50       0.39     0.21
  4   0.0679  -2177.74     0.07     287.64    -0.16
  5   0.0679  -2177.76     0.12     287.73    -0.07
  6   0.0679  -2177.91     0.19     287.79    -0.02
  7   0.0680  -2181.81    -0.15     288.11     0.11
  8   0.0680  -2181.84    -0.11     288.20     0.20
  9   0.0681  -2182.19    -0.24     288.10     0.09
 10   0.0793  -2529.08    -0.31     303.42     0.26
 11   0.0794  -2532.89    -0.35     303.45     0.21
 12   0.8133   9323.29     0.19    1951.11    -0.33
 13   0.8133   9323.29     0.19    1951.11    -0.36
 14   0.8133   9323.38     0.26    1951.24    -0.34
 15   6.0700  34621.66    -0.02   26580.77     0.52
 16   6.0702  34617.40     0.11   26580.08    -0.22
 17   6.0724  34541.65     0.11   26582.15     0.31
 18   6.0726  34537.95 (   0.86)  26582.29 (   0.42)
 19   6.1184  33054.55 (   1.68)  26499.61 (  -0.30)
 20   6.1187  33047.12 (   1.70)  26498.33 (  -0.62)
 21   6.1567  31971.38    -0.17   26287.39     0.22
 22   6.1571  31960.49    -0.36   26284.16    -0.03
 23   6.1573  31955.58    -0.36   26282.97     0.19
 24   6.2144  30796.21     0.29   25781.68     0.48
 25   6.2993  30363.20     0.32   24844.87    -0.18
 26   6.3020  30376.54    -0.04   24815.33    -0.27
 27   6.7790  45503.98    -0.10   27110.66     0.07
 28   6.7791  45505.48    -0.19   27112.72     0.07
 29   6.7844  45588.70    -0.16   27222.03     0.07
 30   6.7845  45590.05    -0.16   27223.55    -0.30
 31   7.1182  39460.56     0.02   31098.17    -0.08
 32   7.1183  39456.69     0.13   31097.68     0.02
 33   7.1560  38357.07     0.41   30869.92    -0.06
 34   7.1590  38276.27    -0.09   30846.09    -0.49
 35   7.1890  37566.93     0.15   30581.45    -0.10
 36   7.1892  37563.69    -0.04   30580.04    -0.09
 37   7.1917  37510.53     0.12   30554.66    -0.07
 38   7.1920  37505.58     0.12   30552.27    -0.04
 39   8.1491  45038.36    -0.52   35592.05     0.01
 40   8.1492  45035.52    -0.14   35591.32     0.15
 41   8.1493  45034.72     0.29   35591.24     0.39
 42   8.9885  57042.11    -0.07   40254.70     0.15
 43   8.9887  57038.12    -0.09   40256.36     0.45
 44   8.9888  57034.98    -0.17   40256.56    -0.38
 45   9.9466  65013.22     0.03   44595.65     0.12
 46   9.9468  65009.11    -0.07   44598.60     0.21
 47  11.1503  65431.70     0.20   50266.27    -0.13
 48  11.1505  65426.99     0.28   50264.27    -0.68
 49  11.1506  65423.33    -0.40   50264.28     0.24
 50  14.3095  84382.33     0.44   63512.31    -0.59
 51  14.3099  84381.10    -0.17   63505.22     0.49

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.

08CT190    quality flag:2

Type:       SCATNEAR   7:3EEEE   7:3EEEE

axisobj        52.753    52.763    52.743
ecceobj         0.342     0.342     0.342
incobj         38.831    38.831    38.831
qmin           34.272    30.589    32.878
qmax           72.423    76.382    74.155
amean          52.962    52.967    52.967
amin           52.297    52.310    52.308
amax           53.719    53.766    53.770
emean           0.312     0.370     0.350
emin            0.277     0.309     0.311
emax            0.352     0.423     0.381
imean          38.083    36.341    37.083
imin           37.124    34.637    36.162
imax           38.868    38.161    38.048
excite_mean     0.691     0.700     0.697
fracstop        1.000     1.000     1.000
cjmean          2.553     2.552     2.552

libcent 0      -180.0     182.2     175.9
libamp  0      -180.0     153.0     168.2
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       152.2     134.9     166.1
kozaiamp        179.9      79.9     111.1