Orbit Fit and Astrometric record for 07VJ305

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: 07VJ305   
# Created Thu Nov 15 02:08:57 2018
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   45 observations of   45
# Arc:  13.84y
# First observation: 2000/11/27
#  Last observation: 2014/09/29
# Chi-squared of fit:    37.42 DOF:   84 RMS:  0.16
# Min/Max residuals:    -0.51    0.43
# Exact a, adot, b, bdot, g, gdot:
  2.169547E-05  3.943379E-02  3.990936E-06  6.879465E-03  2.836246E-02 -4.767691E-03
# Covariance matrix:
  4.5073E-13 -8.8500E-14  4.4189E-14 -1.2919E-14 -6.8573E-14 -9.5508E-14
 -8.8500E-14  2.1308E-14 -1.1640E-14  3.3414E-15  1.0021E-14  2.4593E-14
  4.4189E-14 -1.1640E-14  1.7993E-13 -1.7629E-14 -1.0245E-14 -1.5151E-14
 -1.2919E-14  3.3414E-15 -1.7629E-14  2.2614E-15  3.9537E-15  4.4863E-15
 -6.8573E-14  1.0021E-14 -1.0245E-14  3.9537E-15  1.4090E-13  3.0943E-14
 -9.5508E-14  2.4593E-14 -1.5151E-14  4.4863E-15  3.0943E-14  3.3270E-14
#      lat0       lon0       xBary       yBary       zBary        JD0
   -6.609780   -9.967247   -0.948111   -0.028872   -0.247616  2451875.615824
# Heliocentric elements and errors
Epoch:              2451876.5000  =  2000/11/28
Mean Anomaly:          359.33805 +/-     0.000
Argument of Peri:      338.50228 +/-     0.001
Long of Asc Node:       24.44008 +/-     0.000
Inclination:            11.96719 +/-     0.000
Eccentricity:         0.82306471 +/-    0.0001
Semi-Major Axis:    198.80476217 +/-    0.0820
Time of Perihelion: 2453759.1242 +/-     632.3
Perihelion:          35.17557767 +/-    0.0202
Aphelion:           362.43394668 +/-    0.1501
Period (y)             2803.1632 +/-      1.73
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           34.90959808 +/-    0.0005
Ecliptic Y           -5.16587152 +/-    0.0001
Ecliptic Z           -4.05826108 +/-    0.0001
Ecliptic XDOT         0.00027597 +/-    0.0000
Ecliptic YDOT         0.00381941 +/-    0.0000
Ecliptic ZDOT         0.00071281 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   35.52240168 +/-    0.0005
Geocenter to KBO     35.25800905 +/-    0.0005
# Hcoef:  6.68

The following table shows the complete astrometric record for 07VJ305. 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 (07VJ305) followed by the observatory code and reference code for the source of the astrometry.

2000 11  27.115081 23 33 53.20   -10 01 13.7         07VJ305   645  C~2KuE      
2000 11  27.115910 23 33 53.19   -10 01 13.7         07VJ305   645  C~2KuE      
2000 11  27.118398 23 33 53.20   -10 01 13.8         07VJ305   645  C~2KuE      
2004 08  13.33315  00 12 12.18   -04 15 11.2   20.5R 07VJ305   807  C~03JZ      
2004 08  13.40335  00 12 11.94   -04 15 12.9         07VJ305   807  C~03JZ      
2007 09  14.29710  00 33 35.58   -00 24 53.5   22.7  07VJ305   705  cx9557      
2007 09  14.30042  00 33 35.55   -00 24 53.3   23.6  07VJ305   705  cx9557      
2007 09  22.32720  00 32 56.57   -00 28 35.4   22.4  07VJ305   705  cx9557      
2007 09  22.32803  00 32 56.57   -00 28 35.4   23.0  07VJ305   705  cx9557      
2007 10  12.34331  00 31 16.02   -00 37 35.3   22.4  07VJ305   705  cx9557      
2007 10  12.34663  00 31 16.01   -00 37 35.2   23.0  07VJ305   705  cx9557      
2007 10  14.34370  00 31 06.12   -00 38 25.2   23.0  07VJ305   705  cx9557      
2007 10  14.34453  00 31 06.15   -00 38 25.4   24.4  07VJ305   705  cx9557      
2007 11  04.24989  00 29 31.74   -00 45 45.0   22.4  07VJ305   705  cx9557      
2007 11  04.25321  00 29 31.71   -00 45 45.0   23.4  07VJ305   705  cx9557      
2007 11  07.20788  00 29 20.21   -00 46 31.6   22.5  07VJ305   705  cx9557      
2007 11  07.21120  00 29 20.20   -00 46 32.1   23.4  07VJ305   705  cx9557      
2007 11  11.26012  00 29 05.38   -00 47 28.1   22.4  07VJ305   705  cx9557      
2007 11  11.26344  00 29 05.38   -00 47 28.2   23.3  07VJ305   705  cx9557      
2007 11  13.25018  00 28 58.56   -00 47 52.0   23.2  07VJ305   705  cx9557      
2007 11  13.25101  00 28 58.56   -00 47 52.3   24.6  07VJ305   705  cx9557      
2007 11  14.24843  00 28 55.26   -00 48 03.9   22.6  07VJ305   705  cx9557      
2007 11  14.25175  00 28 55.25   -00 48 04.3   23.8  07VJ305   705  cx9557      
2008 12  01.10695  00 35 54.67   +00 30 31.9   22.0R 07VJ305   688  C~0348      
2008 12  01.27398  00 35 54.29   +00 30 32.1         07VJ305   688  C~0348      
2008 12  21.16179  00 35 36.83   +00 32 11.4   21.8r 07VJ305   695  C~0348      
2008 12  22.10360  00 35 37.04   +00 32 23.0   21.7r 07VJ305   695  C~0348      
2011 09  26.44658  01 03 49.401  +04 52 06.64  22.0w 07VJ305   F51  C~1vVn      
2011 09  26.46734  01 03 49.299  +04 52 05.94  21.9w 07VJ305   F51  C~1vVn      
2011 09  26.48136  01 03 49.236  +04 52 05.85  22.3w 07VJ305   F51  C~1vVn      
2014 06  30.60259  01 28 48.443  +08 49 08.64  22.5w 07VJ305   F51  C~1vVn      
2014 06  30.60324  01 28 48.472  +08 49 08.63  22.8w 07VJ305   F51  C~1vVn      
2014 06  30.60390  01 28 48.464  +08 49 08.79  22.5w 07VJ305   F51  C~1vVn      
2014 06  30.60456  01 28 48.455  +08 49 08.94  22.6w 07VJ305   F51  C~1vVn      
2014 08  28.45226  01 28 42.484  +08 52 39.36  22.5w 07VJ305   F51  C~1vVn      
2014 08  28.46457  01 28 42.420  +08 52 39.01  22.5w 07VJ305   F51  C~1vVn      
2014 08  28.47683  01 28 42.413  +08 52 39.09  22.5w 07VJ305   F51  C~1vVn      
2014 09  19.41879  01 27 21.451  +08 46 22.50  22.2w 07VJ305   F51  C~1vVn      
2014 09  19.42995  01 27 21.403  +08 46 22.27  22.3w 07VJ305   F51  C~1vVn      
2014 09  19.44111  01 27 21.341  +08 46 22.02  22.4w 07VJ305   F51  C~1vVn      
2014 09  19.45233  01 27 21.303  +08 46 21.78  22.6w 07VJ305   F51  C~1vVn      
2014 09  29.52247  01 26 34.905  +08 42 36.21  22.5w 07VJ305   F51  C~1vVn      
2014 09  29.53391  01 26 34.858  +08 42 35.91  22.3w 07VJ305   F51  C~1vVn      
2014 09  29.54536  01 26 34.787  +08 42 35.73  21.9w 07VJ305   F51  C~1vVn      
2014 09  29.55680  01 26 34.745  +08 42 35.36  22.2w 07VJ305   F51  C~1vVn      

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     0.07       0.00    -0.01
  2   0.0000      0.00    -0.07       0.00    -0.02
  3   0.0000      0.00     0.10       0.00    -0.15
  4   3.7104      0.00    -0.04       0.00     0.07
  5   3.7106      0.00    -0.01       0.00     0.00
  6   6.7958      0.00    -0.01       0.00    -0.07
  7   6.7959      0.00    -0.22       0.00     0.22
  8   6.8178      0.00     0.15       0.00     0.03
  9   6.8178      0.00     0.21       0.00     0.05
 10   6.8726      0.00    -0.08       0.00    -0.12
 11   6.8726      0.00     0.02       0.00     0.07
 12   6.8781      0.00    -0.48       0.00     0.08
 13   6.8781      0.00     0.03       0.00    -0.10
 14   6.9353      0.00     0.19       0.00     0.08
 15   6.9354      0.00    -0.06       0.00     0.13
 16   6.9434      0.00     0.03       0.00     0.16
 17   6.9435      0.00     0.08       0.00    -0.29
 18   6.9545      0.00    -0.15       0.00     0.02
 19   6.9545      0.00     0.03       0.00    -0.03
 20   6.9600      0.00     0.03       0.00     0.43
 21   6.9600      0.00     0.08       0.00     0.14
 22   6.9627      0.00     0.22       0.00    -0.15
 23   6.9627      0.00     0.24       0.00    -0.51
 24   8.0109      0.00     0.25       0.00    -0.35
 25   8.0114      0.00    -0.49       0.00     0.16
 26   8.0658      0.00    -0.15       0.00     0.07
 27   8.0684      0.00    -0.17       0.00     0.15
 28  10.8291      0.00    -0.01       0.00     0.07
 29  10.8292      0.00     0.01       0.00    -0.09
 30  10.8292      0.00     0.11       0.00     0.18
 31  13.5893      0.00    -0.27       0.00    -0.10
 32  13.5893      0.00     0.14       0.00    -0.13
 33  13.5893      0.00    -0.01       0.00     0.02
 34  13.5893      0.00    -0.17       0.00     0.16
 35  13.7504      0.00     0.14       0.00     0.06
 36  13.7504      0.00    -0.27       0.00    -0.13
 37  13.7505      0.00     0.17       0.00     0.10
 38  13.8106      0.00     0.09       0.00    -0.05
 39  13.8106      0.00     0.12       0.00    -0.05
 40  13.8106      0.00    -0.06       0.00    -0.06
 41  13.8106      0.00     0.12       0.00    -0.07
 42  13.8382      0.00    -0.02       0.00     0.01
 43  13.8382      0.00     0.12       0.00    -0.02
 44  13.8383      0.00    -0.11       0.00     0.07
 45  13.8383      0.00     0.10       0.00    -0.03

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.

07VJ305    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj       202.114   202.112   202.117
ecceobj         0.826     0.826     0.826
incobj         11.962    11.962    11.962
qmin           33.033    33.095    33.003
qmax          446.547   376.485   414.155
amean         213.511   184.098   199.753
amin          182.774   171.593   180.657
amax          240.733   205.852   224.524
emean           0.835     0.810     0.824
emin            0.805     0.793     0.801
emax            0.856     0.829     0.845
imean          11.313    11.103    11.392
imin           10.386     9.928    10.337
imax           12.314    12.317    12.316
excite_mean     0.858     0.832     0.847
fracstop        1.000     1.000     1.000
cjmean          3.010     3.010     3.009

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       101.2     117.3      96.7
kozaiamp        180.0     180.0     180.0