Orbit Fit and Astrometric record for 07VH305

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: 07VH305   
# Created Sun Dec 17 02:37:32 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   80 observations of   81
# Arc:   4.31y
# First observation: 2007/09/04
#  Last observation: 2011/12/27
# Chi-squared of fit:   421.69 DOF:  154 RMS:  0.41
# Min/Max residuals:    -1.78    1.23
# Exact a, adot, b, bdot, g, gdot:
  3.906810E-05  2.863504E-01 -4.554901E-06 -2.880681E-02  1.162638E-01 -8.657873E-02
# Covariance matrix:
  4.4476E-14 -1.6927E-14 -9.8118E-16  1.5052E-15  2.0740E-14 -7.7189E-15
 -1.6927E-14  1.1822E-14  9.0505E-16 -1.1373E-15 -4.0032E-15  3.3748E-15
 -9.8118E-16  9.0505E-16  2.4568E-14 -6.8471E-15 -3.7706E-16  3.2425E-16
  1.5052E-15 -1.1373E-15 -6.8471E-15  2.6248E-15  9.7559E-16 -5.3120E-16
  2.0740E-14 -4.0032E-15 -3.7706E-16  9.7559E-16  3.1897E-14 -8.8900E-15
 -7.7189E-15  3.3748E-15  3.2425E-16 -5.3120E-16 -8.8900E-15  3.0549E-15
#      lat0       lon0       xBary       yBary       zBary        JD0
   -2.256020    7.684621    0.443422   -0.035572   -0.904471  2454347.821834
# Heliocentric elements and errors
Epoch:              2454348.5000  =  2007/09/05
Mean Anomaly:          351.68942 +/-     0.059
Argument of Peri:      248.68290 +/-     0.000
Long of Asc Node:      165.87901 +/-     0.000
Inclination:             6.20869 +/-     0.000
Eccentricity:         0.66326807 +/-    0.0001
Semi-Major Axis:     24.31020252 +/-    0.0000
Time of Perihelion: 2455359.1716 +/-       7.2
Perihelion:           8.18602139 +/-    0.0026
Aphelion:            40.43438365 +/-    0.0026
Period (y)              119.8646 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X            9.47265831 +/-    0.0001
Ecliptic Y            0.82636724 +/-    0.0000
Ecliptic Z           -0.33859715 +/-    0.0000
Ecliptic XDOT        -0.00294079 +/-    0.0000
Ecliptic YDOT         0.00640496 +/-    0.0000
Ecliptic ZDOT        -0.00059768 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO    9.51477663 +/-    0.0001
Geocenter to KBO      8.60125614 +/-    0.0001
# Hcoef: 11.54

The following table shows the complete astrometric record for 07VH305. 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 (07VH305) followed by the observatory code and reference code for the source of the astrometry.

2007 09  04.32108  00 31 47.45   +00 58 33.5   22.0  07VH305   705  cx9557      
2007 09  04.32191  00 31 47.45   +00 58 33.3   23.0  07VH305   705  cx9557      
2007 09  15.29167  00 29 22.89   +00 38 39.8   21.7  07VH305   705  cx9557      
2007 09  15.29499  00 29 22.86   +00 38 39.3   22.4  07VH305   705  cx9557      
2007 09  15.33170  00 29 22.34   +00 38 35.4   20.9V 07VH305   G96  Cx9557      
2007 09  15.33722  00 29 22.23   +00 38 34.5   21.4V 07VH305   G96  Cx9557      
2007 09  15.34288  00 29 22.12   +00 38 33.9   20.9V 07VH305   G96  Cx9557      
2007 09  15.34863  00 29 22.09   +00 38 33.2   20.9V 07VH305   G96  Cx9557      
2007 09  19.34332  00 28 24.65   +00 30 55.7   21.7  07VH305   705  cx9557      
2007 09  19.34664  00 28 24.61   +00 30 55.3   22.6  07VH305   705  cx9557      
2007 09  22.32356  00 27 40.72   +00 25 10.0   21.5  07VH305   705  cx9557      
2007 09  22.32439  00 27 40.70   +00 25 09.9   22.0  07VH305   705  cx9557      
2007 10  08.34033  00 23 38.19   -00 05 42.2   21.3  07VH305   705  cx9557      
2007 10  08.34116  00 23 38.18   -00 05 42.3   21.5  07VH305   705  cx9557      
2007 10  12.33734  00 22 38.74   -00 13 04.4   21.5  07VH305   705  cx9557      
2007 10  12.34066  00 22 38.68   -00 13 04.8   22.4  07VH305   705  cx9557      
2007 10  14.33751  00 22 09.57   -00 16 40.2   21.9  07VH305   705  cx9557      
2007 10  14.34083  00 22 09.52   -00 16 40.3   22.7  07VH305   705  cx9557      
2007 10  19.33142  00 20 58.96   -00 25 17.9   21.6  07VH305   705  cx9557      
2007 10  19.33474  00 20 58.92   -00 25 18.2   22.3  07VH305   705  cx9557      
2007 10  20.32078  00 20 45.43   -00 26 56.5   22.0  07VH305   705  cx9557      
2007 10  20.32410  00 20 45.38   -00 26 56.8   22.8  07VH305   705  cx9557      
2007 11  03.22798  00 17 56.50   -00 47 13.0   21.3V 07VH305   G96  Cx9557      
2007 11  03.23631  00 17 56.40   -00 47 13.2   20.9V 07VH305   G96  Cx9557      
2007 11  03.24464  00 17 56.29   -00 47 14.2   21.4V 07VH305   G96  Cx9557      
2007 11  03.25310  00 17 56.18   -00 47 14.4   20.8V 07VH305   G96  Cx9557      
2007 11  04.24174  00 17 46.00   -00 48 27.0   21.8  07VH305   705  cx9557      
2007 11  04.24506  00 17 45.96   -00 48 27.3   22.5  07VH305   705  cx9557      
2007 11  08.24294  00 17 07.54   -00 52 59.2   21.8  07VH305   705  cx9557      
2007 11  08.24626  00 17 07.50   -00 52 59.6   22.3  07VH305   705  cx9557      
2007 11  12.23845  00 16 34.04   -00 56 54.7   22.0  07VH305   705  cx9557      
2007 11  12.24177  00 16 34.01   -00 56 55.0   22.9  07VH305   705  cx9557      
2007 11  17.24376  00 15 59.52   -01 00 55.8   21.7  07VH305   705  cx9557      
2007 11  17.24708  00 15 59.50   -01 00 56.1   22.5  07VH305   705  cx9557      
2007 11  19.22026  00 15 48.33   -01 02 13.4   21.9  07VH305   705  cx9557      
2007 11  19.22358  00 15 48.30   -01 02 13.8   22.3  07VH305   705  cx9557      
2008 08  25.05203  01 41 17.70   +06 25 18.5   21. R 07VH305   461  Cz4577      
2008 08  26.07812  01 41 13.71   +06 24 13.4   21.5R 07VH305   461  Cz4577      
2008 08  26.09580  01 41 13.65   +06 24 12.2         07VH305   461  Cz4577      
2008 08  30.02626  01 40 54.59   +06 19 43.6   20.4R 07VH305   204  Cz5251      
2008 08  31.02014  01 40 48.90   +06 18 29.5         07VH305   246  Cz5251      
2008 08  31.02566  01 40 48.69   +06 18 31.0         07VH305   246  Cz5251      
2008 10  02.21034  01 34 53.09   +05 25 45.8   21.5V 07VH305   691  Cz8031      
2008 10  02.22793  01 34 52.80   +05 25 43.3   21.2V 07VH305   691  Cz8031      
2008 10  02.24551  01 34 52.54   +05 25 40.6   21.3V 07VH305   691  Cz8031      
2008 10  03.412814 01 34 34.93   +05 23 26.8   20.8V 07VH305   645  C~1Sgb      
2008 10  03.413643 01 34 34.92   +05 23 26.7   20.5V 07VH305   645  C~1Sgb      
2008 10  03.416131 01 34 34.88   +05 23 26.5   21.5V 07VH305   645  C~1Sgb      
2008 10  08.27820  01 33 19.55   +05 14 06.2   20.9V 07VH305   691  Cz9328      
2008 10  08.29924  01 33 19.24   +05 14 04.1   20.6V 07VH305   691  Cz9328      
2008 10  08.31683  01 33 18.94   +05 14 01.9   20.7V 07VH305   691  Cz9328      
2008 10  08.416744 01 33 17.37   +05 13 50.0   21.1V 07VH305   645  C~1Sgb      
2008 10  08.417573 01 33 17.35   +05 13 49.9   20.8V 07VH305   645  C~1Sgb      
2008 10  08.420061 01 33 17.30   +05 13 49.5   21.7V 07VH305   645  C~1Sgb      
2008 10  22.24871  01 29 34.47   +04 47 39.9   21.4V 07VH305   G96  C~00Aa      
2008 10  22.25370  01 29 34.40   +04 47 38.9   21.4V 07VH305   G96  C~00Aa      
2008 10  22.25874  01 29 34.33   +04 47 38.7   21.2V 07VH305   G96  C~00Aa      
2008 10  22.26369  01 29 34.22   +04 47 37.3   20.9V 07VH305   G96  C~00Aa      
2008 10  22.93323  01 29 23.45   +04 46 25.1   21. R 07VH305   461  C~00QY      
2008 11  22.09435  01 22 27.574  +04 03 04.13        07VH305   309  C~0GtB      
2008 11  22.09616  01 22 27.556  +04 03 04.01        07VH305   309  C~0GtB      
2008 11  22.09797  01 22 27.531  +04 03 03.81        07VH305   309  C~0GtB      
2008 12  27.74594  01 20 31.98   +03 58 08.9         07VH305   461  C~03JZ      
2008 12  28.74297  01 20 36.44   +03 58 51.6         07VH305   461  C~03JZ      
2010 10  08.43421  04 22 55.26   +14 57 25.5   19.9R 07VH305   688  C~0PMP      
2010 10  08.47852  04 22 55.04   +14 57 17.8         07VH305   688  C~0PMP      
2010 11  06.36642  04 17 27.56   +14 26 15.7   20.4V 07VH305   G96  C~0Ops      
2010 11  06.37588  04 17 27.38   +14 26 15.0   20.4V 07VH305   G96  C~0Ops      
2010 11  06.38537  04 17 27.27   +14 26 14.4   20.4V 07VH305   G96  C~0Ops      
2010 11  06.39486  04 17 27.09   +14 26 14.0   20.2V 07VH305   G96  C~0Ops      
2010 12  01.24325  04 10 02.06   +14 01 35.0   20.3V 07VH305   G96  C~0Pm7      
2010 12  01.25005  04 10 01.95   +14 01 34.7   20.9V 07VH305   G96  C~0Pm7      
2010 12  01.25697  04 10 01.77   +14 01 34.2   20.5V 07VH305   G96  C~0Pm7      
2010 12  01.26382  04 10 01.66   +14 01 34.0   20.8V 07VH305   G96  C~0Pm7      
2010 12  11.79984  04 06 52.39   +13 54 02.1   20.8V 07VH305   A13  C~0Pm7      
2010 12  11.81779  04 06 52.17   +13 54 02.5   20.2V 07VH305   A13  C~0Pm7      
2010 12  11.84017  04 06 51.79   +13 54 01.0   20.3V 07VH305   A13  C~0Pm7      
2011 12  27.24906  05 30 06.73   +16 20 34.1   20.6V 07VH305   G96  C~0bdt      
2011 12  27.25773  05 30 06.55   +16 20 33.8   21.1V 07VH305   G96  C~0bdt      
2011 12  27.26647  05 30 06.37   +16 20 34.5   21.1V 07VH305   G96  C~0bdt      
2011 12  27.27522  05 30 06.19   +16 20 34.2   21.9V 07VH305   G96  C~0bdt      

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    -0.77       0.00     0.06
  2   0.0000      0.00     0.22       0.00     0.07
  3   0.0300      0.00     0.12       0.00     0.13
  4   0.0300      0.00     0.39       0.00     0.01
  5   0.0301      0.00     0.48       0.00     0.27
  6   0.0302      0.00     0.03       0.00    -0.00
  7   0.0302      0.00    -0.39       0.00     0.04
  8   0.0302      0.00     0.41       0.00    -0.01
  9   0.0411      0.00     0.05       0.00     0.16
 10   0.0411      0.00     0.20       0.00     0.14
 11   0.0493      0.00     0.25       0.00     0.14
 12   0.0493      0.00     0.14       0.00     0.14
 13   0.0931      0.00     0.17       0.00    -0.00
 14   0.0931      0.00     0.21       0.00    -0.01
 15   0.1041      0.00     0.25       0.00     0.12
 16   0.1041      0.00     0.10       0.00     0.08
 17   0.1096      0.00     0.40       0.00    -0.08
 18   0.1096      0.00     0.38       0.00     0.18
 19   0.1232      0.00     0.13       0.00    -0.01
 20   0.1232      0.00     0.23       0.00     0.02
 21   0.1259      0.00     0.12       0.00     0.04
 22   0.1259      0.00     0.06       0.00     0.07
 23   0.1640      0.00     0.40       0.00    -0.30
 24   0.1640      0.00     0.25       0.00     0.12
 25   0.1641      0.00    -0.04       0.00    -0.26
 26   0.1641      0.00    -0.32       0.00     0.17
 27   0.1668      0.00     0.20       0.00     0.13
 28   0.1668      0.00     0.12       0.00     0.07
 29   0.1777      0.00     0.23       0.00     0.06
 30   0.1778      0.00     0.10       0.00    -0.13
 31   0.1887      0.00     0.23       0.00     0.11
 32   0.1887      0.00     0.18       0.00    -0.01
 33   0.2024      0.00    -0.08       0.00    -0.07
 34   0.2024      0.00    -0.06       0.00    -0.23
 35   0.2078      0.00     0.20       0.00     0.26
 36   0.2078      0.00     0.03       0.00    -0.02
 37   0.9739      0.00     0.30       0.00     0.70
 38   0.9767      0.00     0.32       0.00     0.50
 39   0.9768      0.00     0.59       0.00     0.44
 40   0.9876      0.00    -0.01       0.00     0.55
 41   0.9903      0.00     0.92       0.00    -0.68
 42   0.9903      0.00    -1.71       0.00     1.23
 43   1.0784      0.00    -0.21       0.00     0.97
 44   1.0785      0.00    -0.53       0.00     0.47
 45   1.0785      0.00    -0.39       0.00    -0.22
 46   1.0817      0.00     0.75       0.00    -0.28
 47   1.0817      0.00     0.80       0.00    -0.28
 48   1.0817      0.00     0.77       0.00    -0.20
 49   1.0950      0.00    -0.29       0.00    -0.06
 50   1.0951      0.00     0.16       0.00     0.27
 51   1.0951      0.00    -0.07       0.00     0.10
 52   1.0954      0.00     0.67       0.00    -0.22
 53   1.0954      0.00     0.57       0.00    -0.23
 54   1.0954      0.00     0.43       0.00    -0.34
 55   1.1333      0.00    -0.16       0.00     0.16
 56   1.1333      0.00     0.03       0.00    -0.30
 57   1.1333      0.00     0.23       0.00     0.05
 58   1.1333      0.00    -0.19       0.00    -0.80
 59   1.1351      0.00     0.36       0.00     0.42
 60   1.2177      0.00     0.32       0.00     0.16
 61   1.2177      0.00     0.34       0.00     0.14
 62   1.2177      0.00     0.25       0.00     0.04
 63   1.3153      0.00    -0.37       0.00    -0.03
 64   1.3181      0.00    -0.68       0.00     0.24
 65   3.0941      0.00    -1.78       0.00     1.16
 66   3.0942      0.00 (  -1.11)      0.00 (  -3.93)
 67   3.1733      0.00     0.31       0.00    -0.16
 68   3.1733      0.00    -0.04       0.00    -0.23
 69   3.1733      0.00     0.66       0.00    -0.20
 70   3.1734      0.00     0.32       0.00     0.03
 71   3.2414      0.00     0.58       0.00    -0.11
 72   3.2414      0.00     0.86       0.00    -0.07
 73   3.2414      0.00     0.13       0.00    -0.23
 74   3.2415      0.00     0.42       0.00    -0.10
 75   3.2703      0.00    -0.70       0.00    -0.35
 76   3.2704      0.00     0.70       0.00     0.68
 77   3.2704      0.00     0.87       0.00    -0.04
 78   4.3119      0.00     0.60       0.00    -0.04
 79   4.3119      0.00     0.32       0.00    -0.35
 80   4.3120      0.00     0.05       0.00     0.33
 81   4.3120      0.00    -0.22       0.00     0.02

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.

07VH305    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        24.482    24.481    24.482
ecceobj         0.666     0.665     0.666
incobj          6.196     6.196     6.196
qmin            8.120     7.858     8.099
qmax           40.775    46.593    41.507
amean          24.059    24.482    24.083
amin           23.707    20.712    23.541
amax           24.482    27.370    24.924
emean           0.659     0.668     0.659
emin            0.656     0.621     0.654
emax            0.666     0.702     0.666
imean           5.572     6.522     5.787
imin            5.531     5.297     5.531
imax            5.603     8.915     6.980
excite_mean     0.666     0.678     0.667
fracstop        0.001     0.003     0.002
cjmean          2.590     2.566     2.590

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       254.1     283.7     270.7
kozaiamp          5.4      36.0      24.2