Orbit Fit and Astrometric record for 02VT130

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: 02VT130   
# Created Sat Dec 16 02:37:15 2017
# Orbit generated from Bernstein formalism
# Fitting   58 observations of   58
# Arc:  14.39y
# First observation: 2002/11/07
#  Last observation: 2017/03/29
Preliminary a, adot, b, bdot, g, gdot:
  -0.000110   0.023087   0.000002   0.000036   0.024060   0.000000
# Chi-squared of fit:    43.81 DOF:  110 RMS:  0.15
# Min/Max residuals:    -0.66    0.30
# Exact a, adot, b, bdot, g, gdot:
  1.382980E-05  2.300897E-02  2.356627E-07  3.503073E-05  2.397986E-02  8.840087E-04
# Covariance matrix:
  1.3933E-13 -4.3825E-14  4.1280E-16 -1.6887E-17  5.9459E-14 -1.3719E-13
 -4.3825E-14  2.5668E-14 -1.2171E-16  1.6147E-17 -1.5174E-14  8.8279E-14
  4.1280E-16 -1.2171E-16  5.9789E-14 -5.7648E-15  4.6362E-16 -4.4774E-16
 -1.6887E-17  1.6147E-17 -5.7648E-15  9.6216E-16  3.8709E-18  5.7242E-17
  5.9459E-14 -1.5174E-14  4.6362E-16  3.8709E-18  7.1600E-14 -5.6275E-14
 -1.3719E-13  8.8279E-14 -4.4774E-16  5.7242E-17 -5.6275E-14  3.1551E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.184807   60.229203    0.268530    0.019646   -0.950892  2452585.836433
# Heliocentric elements and errors
Epoch:              2452580.5000  =  2002/11/02
Mean Anomaly:           88.83006 +/-     0.087
Argument of Peri:      352.69218 +/-     0.080
Long of Asc Node:      334.94280 +/-     0.004
Inclination:             1.16283 +/-     0.000
Eccentricity:         0.02959148 +/-    0.0000
Semi-Major Axis:     42.64524334 +/-    0.0022
Time of Perihelion: 2427481.1902 +/-      24.4
Perihelion:          41.38330763 +/-    0.0024
Aphelion:            43.90717906 +/-    0.0025
Period (y)              278.4929 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           21.40564127 +/-    0.0002
Ecliptic Y           36.88759180 +/-    0.0004
Ecliptic Z            0.86229196 +/-    0.0000
Ecliptic XDOT        -0.00223766 +/-    0.0000
Ecliptic YDOT         0.00138847 +/-    0.0000
Ecliptic ZDOT         0.00000629 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.65723214 +/-    0.0004
Geocenter to KBO     41.70166338 +/-    0.0005
# Hcoef:  5.80

The following table shows the complete astrometric record for 02VT130. 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 (02VT130) followed by the observatory code and reference code for the source of the astrometry.

2002 11  07.33569  03 51 09.53   +21 21 24.6   21.4R 02VT130   695  Cg8319      
2002 11  07.43154  03 51 09.05   +21 21 23.2         02VT130   695  Cg8319      
2002 11  27.20347  03 49 28.97   +21 16 21.3   21.5R 02VT130   688  Cg8319      
2002 11  27.25209  03 49 28.71   +21 16 20.6         02VT130   688  Cg8319      
2002 11  28.19340  03 49 23.95   +21 16 05.5   21.5R 02VT130   688  Cg8319      
2002 11  28.28642  03 49 23.47   +21 16 04.0         02VT130   688  Cg8319      
2002 12  02.22297  03 49 03.61   +21 15 02.1   21.4R 02VT130   688  Cg8319      
2002 12  02.33831  03 49 03.03   +21 15 00.5         02VT130   688  Cg8319      
2002 12  02.37072  03 49 02.85   +21 14 59.3         02VT130   688  Cg8319      
2003 01  03.11302  03 46 43.91   +21 07 22.8   21.8R 02VT130   688  Ch0066      
2003 01  03.22718  03 46 43.49   +21 07 21.6         02VT130   688  Ch0066      
2003 11  20.30762  03 55 38.19   +21 34 56.1   21.4R 02VT130   695  Cj7011      
2003 11  20.38911  03 55 37.77   +21 34 54.9         02VT130   695  Cj7011      
2004 01  14.06667  03 51 40.05   +21 22 29.0   21.6R 02VT130   304  Cj7011      
2004 01  14.08884  03 51 39.98   +21 22 28.8         02VT130   304  Cj7011      
2004 01  14.10438  03 51 39.94   +21 22 28.7         02VT130   304  Cj7011      
2004 02  16.80987  03 51 02.10   +21 19 39.3   21.8R 02VT130   493  Cs6919      
2004 02  16.82146  03 51 02.11   +21 19 39.3   21.8R 02VT130   493  Cs6919      
2004 02  16.82839  03 51 02.11   +21 19 39.3   21.8R 02VT130   493  Cs6919      
2004 02  16.88524  03 51 02.14   +21 19 39.4   21.7R 02VT130   493  Cs6919      
2004 02  16.89259  03 51 02.14   +21 19 39.3   21.7R 02VT130   493  Cs6919      
2004 02  16.90001  03 51 02.14   +21 19 39.3   21.8R 02VT130   493  Cs6919      
2004 02  17.81571  03 51 02.71   +21 19 39.4   21.8R 02VT130   493  Cs6919      
2004 02  17.87784  03 51 02.75   +21 19 39.5   21.7R 02VT130   493  Cs6919      
2004 02  17.92295  03 51 02.78   +21 19 39.5   21.8R 02VT130   493  Cs6919      
2006 01  30.11317  04 02 02.14   +21 52 18.7   22.0R 02VT130   688  Cq1750      
2006 01  30.25637  04 02 01.93   +21 52 18.2         02VT130   688  Cq1750      
2008 09  21.91976  04 26 58.02   +22 54 14.9   23.3R 02VT130   250  S~06Aa      
2008 09  21.92601  04 26 58.01   +22 54 14.9         02VT130   250  S~06Aa      
2008 09  21.93296  04 26 58.00   +22 54 14.9         02VT130   250  S~06Aa      
2008 09  21.93921  04 26 58.00   +22 54 14.8         02VT130   250  S~06Aa      
2008 12  28.33039  04 20 14.15   +22 39 44.2   22.2R 02VT130   688  C~02cQ      
2008 12  28.38950  04 20 13.86   +22 39 43.5         02VT130   688  C~02cQ      
2010 10  11.47222  04 37 24.446  +23 16 04.56  22.1w 02VT130   F51  C~1vVD      
2010 10  11.48624  04 37 24.413  +23 16 04.21  22.5w 02VT130   F51  C~1vVD      
2010 10  11.50059  04 37 24.376  +23 16 04.40  22.4w 02VT130   F51  C~1vVD      
2010 10  11.51467  04 37 24.322  +23 16 04.34  22.2w 02VT130   F51  C~1vVD      
2011 10  25.42627  04 42 14.921  +23 25 19.84  22.4w 02VT130   F51  C~1vVD      
2011 10  25.44078  04 42 14.870  +23 25 19.80  22.3w 02VT130   F51  C~1vVD      
2011 10  25.45522  04 42 14.816  +23 25 19.66  22.3w 02VT130   F51  C~1vVD      
2011 10  25.46967  04 42 14.759  +23 25 19.61  22.1w 02VT130   F51  C~1vVD      
2014 12  01.32129  04 56 15.934  +23 48 25.17  21.4i 02VT130   F51  C~1vVD      
2014 12  01.33327  04 56 15.899  +23 48 25.27  21.4i 02VT130   F51  C~1vVD      
2014 12  01.35717  04 56 15.760  +23 48 24.85  21.4i 02VT130   F51  C~1vVD      
2014 12  13.29539  04 55 12.927  +23 46 48.68  22.1w 02VT130   F51  C~1vVD      
2014 12  13.30799  04 55 12.829  +23 46 48.71  21.9w 02VT130   F51  C~1vVD      
2014 12  13.32068  04 55 12.797  +23 46 48.83  21.9w 02VT130   F51  C~1vVD      
2014 12  13.33338  04 55 12.714  +23 46 48.56  22.0w 02VT130   F51  C~1vVD      
2015 01  22.34843  04 52 12.950  +23 41 34.06  22.1w 02VT130   F51  C~1vVD      
2015 01  22.36237  04 52 12.905  +23 41 34.08  22.3w 02VT130   F51  C~1vVD      
2015 01  22.37629  04 52 12.874  +23 41 33.98  22.1w 02VT130   F51  C~1vVD      
2015 01  22.39018  04 52 12.818  +23 41 33.83  22.2w 02VT130   F51  C~1vVD      
2015 01  24.33193  04 52 06.629  +23 41 21.22  22.2w 02VT130   F51  C~1vVD      
2015 01  24.34645  04 52 06.589  +23 41 21.38  22.1w 02VT130   F51  C~1vVD      
2015 01  24.36097  04 52 06.530  +23 41 20.95  22.1w 02VT130   F51  C~1vVD      
2017 03  24.22518  05 02 48.963  +23 55 00.51        02VT130   568  C           
2017 03  24.26197  05 02 49.058  +23 55 00.65        02VT130   568  C           
2017 03  29.23464  05 03 02.761  +23 55 11.26        02VT130   568  C           

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     0.28       0.00    -0.04
  2   0.0003     -6.85     0.25       0.05    -0.05
  3   0.0544  -1437.60    -0.29       3.52     0.11
  4   0.0545  -1441.30    -0.40       3.62     0.19
  5   0.0571  -1509.53    -0.17       3.16    -0.10
  6   0.0574  -1516.41    -0.19       3.13    -0.14
  7   0.0681  -1800.87    -0.02       2.39     0.04
  8   0.0685  -1809.13     0.12       2.57     0.24
  9   0.0685  -1811.85    -0.23       1.94    -0.38
 10   0.1554  -3808.23     0.22     -21.74    -0.14
 11   0.1558  -3814.22     0.03     -21.63     0.08
 12   1.0348   3837.48    -0.23      11.41    -0.08
 13   1.0351   3831.50    -0.17      11.44    -0.07
 14   1.1848    430.31     0.05     -27.30    -0.11
 15   1.1848    429.31    -0.05     -27.29    -0.08
 16   1.1849    428.74     0.00     -27.27    -0.03
 17   1.2771   -123.79     0.08     -80.88    -0.05
 18   1.2772   -123.65     0.14     -80.91    -0.06
 19   1.2772   -123.65     0.09     -80.91    -0.05
 20   1.2773   -123.22     0.14     -80.90     0.06
 21   1.2774   -123.24     0.07     -81.00    -0.03
 22   1.2774   -123.24     0.01     -81.00    -0.01
 23   1.2799   -115.43     0.04     -82.59    -0.06
 24   1.2801   -114.87     0.10     -82.61     0.02
 25   1.2802   -114.46     0.12     -82.70     0.01
 26   3.2301   9293.82     0.16     -37.28    -0.11
 27   3.2304   9290.84     0.30     -37.20     0.20
 28   5.8743  30583.99     0.00      -3.49     0.22
 29   5.8743  30583.85    -0.02      -3.47     0.23
 30   5.8743  30583.71    -0.04      -3.45     0.24
 31   5.8743  30583.69     0.06      -3.55     0.13
 32   6.1410  24828.94    -0.27      29.42     0.16
 33   6.1411  24824.81    -0.66      29.40     0.21
 34   7.9265  39580.44     0.04      36.98     0.13
 35   7.9265  39579.93     0.10      36.69    -0.18
 36   7.9265  39579.43     0.19      36.95     0.06
 37   7.9266  39578.66     0.00      36.99     0.08
 38   8.9640  43784.20     0.03      58.75     0.01
 39   8.9640  43783.47     0.11      58.81     0.04
 40   8.9641  43782.68     0.12      58.76    -0.02
 41   8.9641  43781.86     0.11      58.81     0.01
 42  12.0657  56110.67    -0.18      95.65    -0.07
 43  12.0657  56110.17     0.26      95.80     0.08
 44  12.0658  56108.08     0.05      95.57    -0.15
 45  12.0985  55177.22     0.07      89.97    -0.19
 46  12.0985  55175.79    -0.37      90.15    -0.01
 47  12.0985  55175.33     0.17      90.32     0.16
 48  12.0986  55174.09    -0.07      90.17     0.01
 49  12.2081  52516.62    -0.13      43.06    -0.12
 50  12.2081  52515.97    -0.09      43.15    -0.01
 51  12.2082  52515.51     0.14      43.10    -0.04
 52  12.2082  52514.68    -0.01      43.03    -0.08
 53  12.2135  52423.24    -0.02      39.83    -0.17
 54  12.2136  52422.67     0.11      40.06     0.08
 55  12.2136  52421.77    -0.12      39.71    -0.24
 56  14.3762  61957.87    -0.05     -44.97    -0.03
 57  14.3763  61959.29     0.03     -44.95     0.05
 58  14.3899  62164.39     0.01     -52.01     0.07

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.

02VT130    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        42.785    42.792    42.778
ecceobj         0.034     0.034     0.034
incobj          1.162     1.162     1.162
qmin           39.958    39.990    39.839
qmax           45.277    45.219    45.301
amean          42.488    42.495    42.481
amin           42.155    42.167    42.145
amax           42.831    42.838    42.814
emean           0.034     0.034     0.036
emin            0.006     0.007     0.006
emax            0.057     0.056     0.059
imean           2.776     2.792     2.769
imin            1.230     1.267     1.177
imax            3.709     3.705     3.714
excite_mean     0.060     0.060     0.062
fracstop        1.000     1.000     1.000
cjmean          3.079     3.079     3.079

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       190.1     194.3     181.0
kozaiamp        180.0     180.0     180.0