Orbit Fit and Astrometric record for 07VJ302

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: 07VJ302   
# Created Mon Dec 18 02:37:31 2017
# Orbit generated from Bernstein formalism
# Fitting   32 observations of   32
# Arc:  11.00y
# First observation: 2006/09/25
#  Last observation: 2017/09/23
Preliminary a, adot, b, bdot, g, gdot:
  -0.001135   0.026545  -0.000151   0.002940   0.025732   0.000000
# Chi-squared of fit:    28.10 DOF:   58 RMS:  0.17
# Min/Max residuals:    -0.35    0.43
# Exact a, adot, b, bdot, g, gdot:
  1.659491E-05  2.582027E-02  1.957020E-06  2.866056E-03  2.541632E-02 -2.929402E-04
# Covariance matrix:
  3.7274E-13 -1.0846E-13  8.2846E-15 -8.2244E-15  2.3037E-13 -2.6456E-13
 -1.0846E-13  6.1242E-14 -8.4969E-15  6.1277E-15 -1.2405E-14  1.8849E-13
  8.2846E-15 -8.4969E-15  9.6518E-14 -1.6053E-14 -7.8468E-15 -3.0399E-14
 -8.2244E-15  6.1277E-15 -1.6053E-14  5.2673E-15  1.8428E-15  2.1084E-14
  2.3037E-13 -1.2405E-14 -7.8468E-15  1.8428E-15  3.5879E-13  3.7051E-14
 -2.6456E-13  1.8849E-13 -3.0399E-14  2.1084E-14  3.7051E-14  6.4423E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   -6.178633   16.000358    0.241564   -0.104975   -0.970895  2454003.702234
# Heliocentric elements and errors
Epoch:              2454000.5000  =  2006/09/22
Mean Anomaly:          346.72006 +/-     0.031
Argument of Peri:      331.28781 +/-     0.035
Long of Asc Node:       59.14225 +/-     0.001
Inclination:             8.72547 +/-     0.000
Eccentricity:         0.06457503 +/-    0.0001
Semi-Major Axis:     43.00533221 +/-    0.0046
Time of Perihelion: 2457800.4305 +/-       8.8
Perihelion:          40.22826171 +/-    0.0054
Aphelion:            45.78240271 +/-    0.0059
Period (y)              282.0276 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           38.60316710 +/-    0.0009
Ecliptic Y           10.81604951 +/-    0.0002
Ecliptic Z           -4.23456961 +/-    0.0001
Ecliptic XDOT        -0.00076011 +/-    0.0000
Ecliptic YDOT         0.00266944 +/-    0.0000
Ecliptic ZDOT         0.00031028 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.31281455 +/-    0.0009
Geocenter to KBO     39.34479573 +/-    0.0009
# Hcoef:  6.76

The following table shows the complete astrometric record for 07VJ302. 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 (07VJ302) followed by the observatory code and reference code for the source of the astrometry.

2006 09  25.20148  01 08 27.11   +00 35 16.4   22.6R 07VJ302   807  C~02IE      
2006 09  25.24085  01 08 26.93   +00 35 15.3   21.9I 07VJ302   807  C~02IE      
2007 11  03.20261  01 10 40.98   +01 01 36.4   22.5R 07VJ302   807  Cx2667      
2007 11  07.20450  01 10 23.90   +01 00 16.3   22.6R 07VJ302   807  Cx2667      
2007 11  07.22552  01 10 23.81   +01 00 15.9   22.0I 07VJ302   807  Cx2667      
2007 11  13.03287  01 10 00.32   +00 58 31.6   22.8R 07VJ302   807  Cx2667      
2007 11  13.04468  01 10 00.28   +00 58 31.6   22.0I 07VJ302   807  Cx2667      
2007 11  15.03031  01 09 52.64   +00 57 59.6   22.6R 07VJ302   807  Cx2667      
2007 11  15.05573  01 09 52.54   +00 57 59.1   22.1I 07VJ302   807  Cx2667      
2007 11  17.04885  01 09 45.09   +00 57 29.0   22.8R 07VJ302   807  Cx2667      
2007 12  03.13953  01 08 54.38   +00 54 41.4   22.8R 07VJ302   807  Cx2667      
2007 12  03.15709  01 08 54.34   +00 54 41.1   22.1I 07VJ302   807  Cx2667      
2007 12  07.04386  01 08 44.95   +00 54 22.6   22.8R 07VJ302   807  Cx2667      
2007 12  07.07264  01 08 44.88   +00 54 22.6   22.1I 07VJ302   807  Cx2667      
2008 10  23.36705  01 16 39.64   +01 48 27.4   22.1r 07VJ302   695  C~02IE      
2008 10  23.41926  01 16 39.39   +01 48 26.1   22.0r 07VJ302   695  C~02IE      
2008 10  24.33051  01 16 35.16   +01 48 04.0   22.0r 07VJ302   695  C~02IE      
2008 10  24.43057  01 16 34.70   +01 48 01.6   22.2r 07VJ302   695  C~02IE      
2009 09  27.360602 01 23 56.63   +02 43 11.8   22.8V 07VJ302   645  C~2KuE      
2009 09  27.361431 01 23 56.64   +02 43 11.8   22.7V 07VJ302   645  C~2KuE      
2009 09  27.363919 01 23 56.64   +02 43 11.8   23.8V 07VJ302   645  C~2KuE      
2009 09  27.393194 01 23 56.47   +02 43 10.8   22.8V 07VJ302   645  C~2KuE      
2009 09  27.394023 01 23 56.48   +02 43 10.8   22.6V 07VJ302   645  C~2KuE      
2009 09  27.396511 01 23 56.48   +02 43 10.8   23.7V 07VJ302   645  C~2KuE      
2010 12  02.16201  01 24 30.19   +03 02 51.5   23.5R 07VJ302   688  C~0Pm7      
2010 12  02.28632  01 24 29.80   +03 02 50.4         07VJ302   688  C~0Pm7      
2013 10  07.36100  01 44 16.29   +05 30 03.3   22.7R 07VJ302   695  C~0zea      
2013 10  07.42222  01 44 16.03   +05 30 01.2         07VJ302   695  C~0zea      
2013 10  07.48553  01 44 15.72   +05 29 59.8         07VJ302   695  C~0zeb      
2017 09  23.38271  02 06 30.34   +08 23 46.6   22.7R 07VJ302   G37  C~2LQq      
2017 09  23.42251  02 06 30.16   +08 23 46.0         07VJ302   G37  C~2LQq      
2017 09  23.47901  02 06 29.95   +08 23 44.8         07VJ302   G37  C~2LQq      

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    -0.11       0.00    -0.04
  2   0.0001     -2.92    -0.10       0.02    -0.02
  3   1.1061   2459.51     0.19     692.34    -0.16
  4   1.1171   2192.15     0.02     716.24     0.01
  5   1.1171   2190.75     0.01     716.39     0.02
  6   1.1330   1825.30    -0.10     754.68    -0.10
  7   1.1330   1824.75     0.08     754.91     0.04
  8   1.1385   1706.62     0.10     769.15     0.07
  9   1.1385   1705.05     0.04     769.26    -0.02
 10   1.1440   1590.29     0.02     784.16     0.10
 11   1.1881    823.41     0.03     920.08     0.01
 12   1.1881    822.74     0.05     920.03    -0.20
 13   1.1987    685.53    -0.01     956.79    -0.05
 14   1.1988    684.56    -0.01     957.19     0.06
 15   2.0785   8508.46    -0.11    1236.26     0.19
 16   2.0786   8504.50    -0.17    1236.49     0.19
 17   2.0811   8437.33    -0.12    1240.27     0.25
 18   2.0814   8430.03     0.03    1240.68     0.22
 19   3.0066  15842.11    -0.03    1778.71    -0.19
 20   3.0066  15842.25     0.17    1778.65    -0.24
 21   3.0066  15842.25     0.35    1778.65    -0.25
 22   3.0067  15839.50    -0.24    1778.70    -0.21
 23   3.0067  15839.64    -0.04    1778.64    -0.27
 24   3.0067  15839.64     0.14    1778.64    -0.27
 25   4.1861  16762.04     0.05    2681.72     0.33
 26   4.1864  16756.18    -0.14    2682.92     0.42
 27   7.0340  36877.63    -0.17    4192.08     0.43
 28   7.0341  36873.10     0.05    4191.57    -0.19
 29   7.0343  36868.13    -0.02    4192.00     0.13
 30  10.9957  60461.63     0.06    6673.52    -0.35
 31  10.9958  60458.69    -0.14    6673.94     0.05
 32  10.9960  60455.06     0.13    6673.94     0.04

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.

07VJ302    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.517    43.531    43.503
ecceobj         0.076     0.076     0.075
incobj          8.697     8.697     8.697
qmin           39.189    39.125    39.149
qmax           47.438    47.487    47.504
amean          43.203    43.217    43.189
amin           42.861    42.872    42.845
amax           43.569    43.583    43.555
emean           0.074     0.074     0.073
emin            0.057     0.056     0.056
emax            0.090     0.090     0.091
imean           6.995     7.001     6.990
imin            6.187     6.189     6.185
imax            7.806     7.805     7.800
excite_mean     0.143     0.143     0.142
fracstop        1.000     1.000     1.000
cjmean          3.068     3.068     3.068

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       174.9     175.2     175.1
kozaiamp        180.0     180.0     180.0