Orbit Fit and Astrometric record for 307463

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: 307463    
# Created Mon Dec 18 02:36:41 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   67 observations of   68
# Arc:  13.09y
# First observation: 2002/11/07
#  Last observation: 2015/12/09
# Chi-squared of fit:   154.55 DOF:  128 RMS:  0.27
# Min/Max residuals:    -0.84    1.45
# Exact a, adot, b, bdot, g, gdot:
  1.401356E-05  2.128731E-02 -2.438648E-07 -4.514441E-04  2.377699E-02 -3.878701E-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
    0.646557   60.777934    0.277562    0.010684   -0.948436  2452585.840233
# Heliocentric elements and errors
Epoch:              2452586.5000  =  2002/11/08
Mean Anomaly:          254.24763 +/-     0.000
Argument of Peri:      279.10700 +/-     0.000
Long of Asc Node:      268.07463 +/-     0.000
Inclination:             1.36162 +/-     0.000
Eccentricity:         0.20875224 +/-    0.0000
Semi-Major Axis:     39.35021158 +/-    0.0000
Time of Perihelion: 2479071.9073 +/-       0.0
Perihelion:          31.13576675 +/-    0.0000
Aphelion:            47.56465642 +/-    0.0000
Period (y)              246.8475 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           21.23478632 +/-    0.0000
Ecliptic Y           37.40021076 +/-    0.0000
Ecliptic Z            0.47458299 +/-    0.0000
Ecliptic XDOT        -0.00236440 +/-    0.0000
Ecliptic YDOT         0.00080397 +/-    0.0000
Ecliptic ZDOT        -0.00005681 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.01077668 +/-    0.0000
Geocenter to KBO     42.05761877 +/-    0.0000
# Hcoef:  5.75

The following table shows the complete astrometric record for 307463. 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 (307463) followed by the observatory code and reference code for the source of the astrometry.

2002 11  07.33949  03 53 56.66   +20 56 44.9   21.5R 307463    695  Cg8319      
2002 11  07.43552  03 53 56.17   +20 56 43.5         307463    695  Cg8319      
2002 11  27.22130  03 52 16.06   +20 51 39.8   21.5R 307463    688  Cg8319      
2002 11  27.26692  03 52 15.84   +20 51 38.9         307463    688  Cg8319      
2002 11  28.20862  03 52 11.03   +20 51 24.3   21.6R 307463    688  Cg8319      
2002 11  28.30197  03 52 10.53   +20 51 22.6         307463    688  Cg8319      
2002 12  02.23843  03 51 50.60   +20 50 20.7   21.3R 307463    688  Cg8319      
2002 12  02.35595  03 51 50.03   +20 50 19.0         307463    688  Cg8319      
2003 01  03.12843  03 49 29.45   +20 42 48.2   21.8R 307463    688  Ch0066      
2003 01  03.24166  03 49 29.04   +20 42 47.0         307463    688  Ch0066      
2003 11  20.31129  03 58 02.61   +21 07 08.8   21.6R 307463    695  Cj7011      
2003 11  20.38366  03 58 02.24   +21 07 07.7         307463    695  Cj7011      
2004 01  14.06936  03 54 01.44   +20 54 47.7   21.8R 307463    304  Cj7011      
2004 01  14.09156  03 54 01.38   +20 54 47.5         307463    304  Cj7011      
2004 02  16.86795  03 53 20.03   +20 52 06.6   21.9R 307463    493  Cs6919      
2004 02  16.87529  03 53 20.02   +20 52 06.7   21.8R 307463    493  Cs6919      
2004 02  16.93949  03 53 20.015  +20 52 06.62  21.7V 307463    493  Cz6608      
2004 02  17.83156  03 53 20.51   +20 52 06.8   21.9R 307463    493  Cs6919      
2004 02  17.89387  03 53 20.54   +20 52 06.7   22.2R 307463    493  Cs6919      
2004 10  11.38143  04 06 11.85   +21 28 12.7   21.5R 307463    695  Cl8392      
2004 10  11.46846  04 06 11.64   +21 28 12.1         307463    695  Cl8392      
2005 08  01.64998  04 11 32.49   +21 40 02.4   21.5R 307463    250  S~06Aa      
2005 08  01.65669  04 11 32.52   +21 40 02.5         307463    250  S~06Aa      
2005 08  01.66340  04 11 32.54   +21 40 02.5         307463    250  S~06Aa      
2005 11  02.30628  04 09 58.90   +21 36 40.0   21.5R 307463    695  Cp0686      
2005 11  02.36397  04 09 58.63   +21 36 39.3         307463    695  Cp0686      
2005 11  02.42006  04 09 58.36   +21 36 38.6         307463    695  Cp0686      
2006 12  24.31177  04 10 57.22   +21 37 14.8   21.6R 307463    688  Ct2062      
2006 12  24.38888  04 10 56.87   +21 37 15.5         307463    688  Ct2062      
2009 08  24.13813  04 33 34.094  +22 24 14.61  21.1V 307463    950  C~0C7j      
2009 09  25.23308  04 33 38.551  +22 24 44.63  22.7V 307463    950  C~0C7j      
2010 10  11.47096  04 38 36.01   +22 32 55.9   22.2w 307463    F51  C~0QsX      
2010 10  11.47148  04 38 36.009  +22 32 55.78  21.9w 307463    F51  C~1vxC      
2010 10  11.48485  04 38 35.97   +22 32 55.7   22.4w 307463    F51  C~0QsX      
2010 10  11.48555  04 38 35.971  +22 32 55.69  22.0w 307463    F51  C~1vxC      
2010 10  11.49943  04 38 35.93   +22 32 55.5   22.3w 307463    F51  C~0QsX      
2010 10  11.49989  04 38 35.927  +22 32 55.60  22.0w 307463    F51  C~1vxC      
2010 10  11.51333  04 38 35.89   +22 32 55.6   22.6w 307463    F51  C~0QsX      
2010 10  11.51398  04 38 35.887  +22 32 55.64  22.2w 307463    F51  C~1vxC      
2010 11  09.54321  04 36 40.64   +22 29 13.0   22.4w 307463    F51  C~0QsX      
2010 11  09.54395  04 36 40.636  +22 29 12.96  21.9w 307463    F51  C~1vxC      
2010 11  09.56196  04 36 40.56   +22 29 12.7   22.5w 307463    F51  C~0QsX      
2010 11  09.56212  04 36 40.560  +22 29 12.67  22.0w 307463    F51  C~1vxC      
2010 11  09.58001  04 36 40.48   +22 29 12.7   22.3w 307463    F51  C~0QsX      
2010 11  09.58035  04 36 40.457  +22 29 12.70  21.8w 307463    F51  C~1vxC      
2010 11  09.59808  04 36 40.38   +22 29 12.4   22.3w 307463    F51  C~0QsX      
2010 11  09.59851  04 36 40.374  +22 29 12.36  21.9w 307463    F51  C~1vxC      
2011 10  25.42627  04 43 27.528  +22 40 16.81  22.0w 307463    F51  C~1vxC      
2011 10  25.44078  04 43 27.478  +22 40 16.63  22.0w 307463    F51  C~1vxC      
2011 10  25.45522  04 43 27.423  +22 40 16.59  21.9w 307463    F51  C~1vxC      
2011 10  25.46967  04 43 27.357  +22 40 16.36  22.1w 307463    F51  C~1vxC      
2013 04  03.24443  04 42 31.630  +22 35 17.13  22.1w 307463    F51  C~1vxC      
2013 04  03.24931  04 42 31.639  +22 35 16.97  22.1w 307463    F51  C~1vxC      
2013 04  03.25995  04 42 31.691  +22 35 17.45  22.0w 307463    F51  C~1vxC      
2014 10  25.62575  05 00 45.161  +23 02 38.92  22.2w 307463    F51  C~1vxC      
2014 10  25.62840  05 00 45.129  +23 02 38.86  21.7w 307463    F51  C~1vxC      
2014 10  25.63109  05 00 45.104  +23 02 38.83  22.0w 307463    F51  C~1vxC      
2014 10  25.63374  05 00 45.138  +23 02 39.09  21.6w 307463    F51  C~1vxC      
2014 12  13.29539  04 56 42.913  +22 56 37.36  21.7w 307463    F51  C~1vxC      
2014 12  13.30799  04 56 42.843  +22 56 37.12  21.8w 307463    F51  C~1vxC      
2014 12  13.32068  04 56 42.772  +22 56 37.08  21.7w 307463    F51  C~1vxC      
2014 12  13.33338  04 56 42.702  +22 56 37.04  21.9w 307463    F51  C~1vxC      
2015 01  24.33193  04 53 26.244  +22 51 11.42  22.1w 307463    F51  C~1vxC      
2015 01  24.34645  04 53 26.207  +22 51 11.24  22.2w 307463    F51  C~1vxC      
2015 01  24.36097  04 53 26.149  +22 51 11.16  22.4w 307463    F51  C~1vxC      
2015 12  09.49998  05 03 00.196  +23 03 43.95  22.0w 307463    F51  C~1ftx      
2015 12  09.51386  05 03 00.087  +23 03 43.83  21.8w 307463    F51  C~1ftx      
2015 12  09.54156  05 02 59.933  +23 03 43.53  21.7w 307463    F51  C~1ftx      

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    -0.24       0.00    -0.34
  2   0.0003      0.00    -0.10       0.00     0.02
  3   0.0544      0.00    -0.12       0.00    -0.19
  4   0.0546      0.00     0.12       0.00    -0.38
  5   0.0571      0.00    -0.10       0.00    -0.16
  6   0.0574      0.00    -0.36       0.00    -0.40
  7   0.0682      0.00    -0.25       0.00    -0.45
  8   0.0685      0.00     0.20       0.00    -0.30
  9   0.1555      0.00     0.46       0.00     0.16
 10   0.1558      0.00     0.44       0.00     0.30
 11   1.0348      0.00     0.06       0.00    -0.14
 12   1.0350      0.00     0.18       0.00    -0.14
 13   1.1847      0.00     0.02       0.00    -0.02
 14   1.1848      0.00     0.08       0.00    -0.01
 15   1.2773      0.00     0.15       0.00     0.04
 16   1.2773      0.00    -0.05       0.00     0.14
 17   1.2775      0.00    -0.51       0.00     0.07
 18   1.2799      0.00     0.10       0.00    -0.09
 19   1.2801      0.00     0.09       0.00    -0.20
 20   1.9276      0.00    -0.84       0.00     0.24
 21   1.9278      0.00     0.56       0.00     0.41
 22   2.7332      0.00     0.66       0.00     0.36
 23   2.7332      0.00     0.78       0.00     0.40
 24   2.7333      0.00     0.75       0.00     0.34
 25   2.9869      0.00    -0.26       0.00     0.08
 26   2.9871      0.00    -0.18       0.00     0.08
 27   2.9872      0.00    -0.23       0.00     0.06
 28   4.1286      0.00    -0.07       0.00    -0.24
 29   4.1288      0.00     0.02       0.00     1.45
 30   6.7948      0.00 (  -3.90)      0.00 (  -9.88)
 31   6.8827      0.00    -0.62       0.00    -0.55
 32   7.9264      0.00     0.01       0.00     0.07
 33   7.9264      0.00     0.02       0.00    -0.04
 34   7.9265      0.00     0.03       0.00    -0.06
 35   7.9265      0.00     0.07       0.00    -0.06
 36   7.9265      0.00     0.07       0.00    -0.18
 37   7.9265      0.00     0.05       0.00    -0.08
 38   7.9266      0.00     0.09       0.00    -0.01
 39   7.9266      0.00     0.07       0.00     0.03
 40   8.0060      0.00    -0.04       0.00     0.02
 41   8.0060      0.00    -0.05       0.00    -0.01
 42   8.0061      0.00     0.15       0.00    -0.10
 43   8.0061      0.00     0.16       0.00    -0.13
 44   8.0061      0.00     0.29       0.00     0.08
 45   8.0061      0.00    -0.03       0.00     0.08
 46   8.0062      0.00     0.13       0.00    -0.04
 47   8.0062      0.00     0.07       0.00    -0.07
 48   8.9640      0.00    -0.15       0.00    -0.01
 49   8.9640      0.00    -0.04       0.00    -0.09
 50   8.9640      0.00    -0.01       0.00    -0.04
 51   8.9641      0.00    -0.13       0.00    -0.17
 52  10.4036      0.00     0.01       0.00    -0.05
 53  10.4036      0.00    -0.15       0.00    -0.24
 54  10.4036      0.00     0.00       0.00     0.17
 55  11.9652      0.00     0.17       0.00     0.16
 56  11.9652      0.00    -0.16       0.00     0.11
 57  11.9652      0.00    -0.38       0.00     0.10
 58  11.9652      0.00     0.28       0.00     0.37
 59  12.0984      0.00     0.05       0.00    -0.02
 60  12.0985      0.00     0.06       0.00    -0.15
 61  12.0985      0.00     0.06       0.00    -0.09
 62  12.0985      0.00     0.08       0.00    -0.02
 63  12.2135      0.00     0.04       0.00     0.03
 64  12.2136      0.00     0.22       0.00    -0.06
 65  12.2136      0.00     0.09       0.00    -0.06
 66  13.0874      0.00     0.44       0.00     0.02
 67  13.0874      0.00    -0.01       0.00     0.01
 68  13.0875      0.00     0.03       0.00    -0.06

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.

307463    quality flag:3

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

axisobj        39.400    39.400    39.400
ecceobj         0.204     0.204     0.204
incobj          1.365     1.365     1.365
qmin           30.370    30.364    30.362
qmax           49.362    49.404    49.363
amean          39.457    39.457    39.457
amin           38.900    38.892    38.907
amax           40.087    40.119    40.097
emean           0.216     0.216     0.216
emin            0.199     0.200     0.199
emax            0.232     0.233     0.232
imean           3.419     3.419     3.405
imin            2.544     2.544     2.545
imax            4.073     4.073     4.042
excite_mean     0.224     0.224     0.224
fracstop        1.000     1.000     1.000
cjmean          2.994     2.994     2.994

libcent 0       181.0     180.5     180.2
libamp  0       127.5     128.0     126.9
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       233.3     233.5     232.6
kozaiamp         65.3      65.2      66.7