Orbit Fit and Astrometric record for 07VL305

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: 07VL305   
# Created Tue Oct 24 01:37:44 2017
# Orbit generated from Bernstein formalism
# Fitting   30 observations of   30
# Arc:   5.19y
# First observation: 2005/11/03
#  Last observation: 2011/01/10
Preliminary a, adot, b, bdot, g, gdot:
   0.000609   0.039566  -0.000336  -0.020030   0.037277   0.000000
# Chi-squared of fit:    31.56 DOF:   54 RMS:  0.18
# Min/Max residuals:    -0.42    0.43
# Exact a, adot, b, bdot, g, gdot:
  1.598805E-05  3.991146E-02 -8.471678E-06 -2.019036E-02  3.669175E-02 -1.059817E-03
# Covariance matrix:
  4.4984E-13 -2.9862E-13 -1.1973E-13  1.1760E-13 -1.2521E-13 -1.0841E-12
 -2.9862E-13  2.6319E-13  1.2518E-13 -1.2377E-13  7.8147E-14  1.1653E-12
 -1.1973E-13  1.2518E-13  2.8384E-13 -1.3852E-13  3.1602E-14  6.3807E-13
  1.1760E-13 -1.2377E-13 -1.3852E-13  9.7088E-14 -2.8037E-14 -6.3445E-13
 -1.2521E-13  7.8147E-14  3.1602E-14 -2.8037E-14  2.2842E-13  1.6816E-13
 -1.0841E-12  1.1653E-12  6.3807E-13 -6.3445E-13  1.6816E-13  6.0792E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -9.362501   25.401762   -0.265080   -0.156114   -0.947552  2453677.812383
# Heliocentric elements and errors
Epoch:              2453670.5000  =  2005/10/27
Mean Anomaly:          343.81330 +/-     0.051
Argument of Peri:      217.69397 +/-     0.058
Long of Asc Node:      188.65079 +/-     0.000
Inclination:            28.16856 +/-     0.000
Eccentricity:         0.06097918 +/-    0.0000
Semi-Major Axis:     29.94344461 +/-    0.0016
Time of Perihelion: 2456361.4576 +/-       8.5
Perihelion:          28.11751777 +/-    0.0018
Aphelion:            31.76937145 +/-    0.0020
Period (y)              163.8554 +/-      0.01
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           25.04079040 +/-    0.0003
Ecliptic Y           12.18519820 +/-    0.0002
Ecliptic Z           -4.43392528 +/-    0.0001
Ecliptic XDOT        -0.00156712 +/-    0.0000
Ecliptic YDOT         0.00254514 +/-    0.0000
Ecliptic ZDOT        -0.00147361 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   28.19893495 +/-    0.0003
Geocenter to KBO     27.25408395 +/-    0.0004
# Hcoef:  8.03

The following table shows the complete astrometric record for 07VL305. 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 (07VL305) followed by the observatory code and reference code for the source of the astrometry.

2005 11  03.31164  01 47 46.51   +01 05 40.4   22.7  07VL305   705  Cy0828      
2005 11  03.31496  01 47 46.47   +01 05 40.2   23.4  07VL305   705  Cy0828      
2006 10  03.40271  02 01 16.43   +01 15 14.4   23.0  07VL305   705  Cy0828      
2006 10  03.40603  02 01 16.41   +01 15 14.1   23.8  07VL305   705  Cy0828      
2006 11  24.30209  01 55 54.08   +00 37 50.3   22.8  07VL305   705  Cy0828      
2006 11  24.30541  01 55 54.04   +00 37 50.1   23.3  07VL305   705  Cy0828      
2007 09  22.39612  02 12 28.95   +01 09 21.1   22.7  07VL305   705  Cy0828      
2007 09  22.39944  02 12 28.93   +01 09 20.7   23.5  07VL305   705  Cy0828      
2007 10  19.40800  02 09 51.07   +00 45 58.2   22.6  07VL305   705  Cy0828      
2007 10  19.40883  02 09 51.05   +00 45 58.3   23.5  07VL305   705  Cy0828      
2007 11  04.31814  02 08 07.12   +00 33 51.8   22.9  07VL305   705  Cy0828      
2007 11  04.32146  02 08 07.10   +00 33 51.7   24.1  07VL305   705  Cy0828      
2007 11  07.27605  02 07 48.01   +00 31 51.1   23.0  07VL305   705  Cy0828      
2007 11  07.27937  02 07 47.99   +00 31 51.0   23.5  07VL305   705  Cy0828      
2007 11  11.32815  02 07 22.21   +00 29 14.9   22.9  07VL305   705  Cy0828      
2007 11  11.32898  02 07 22.18   +00 29 15.3   24.3  07VL305   705  Cy0828      
2007 11  13.31816  02 07 09.77   +00 28 02.6   22.8  07VL305   705  Cy0828      
2007 11  13.32148  02 07 09.73   +00 28 02.4   23.6  07VL305   705  Cy0828      
2008 09  06.443274 02 23 39.98   +01 06 36.9   22.4V 07VL305   645  C~1SLK      
2008 09  06.444104 02 23 39.98   +01 06 36.9   22.1V 07VL305   645  C~1SLK      
2008 09  06.446592 02 23 39.97   +01 06 36.7   24.9V 07VL305   645  C~1SLK      
2008 12  01.17690  02 15 33.37   +00 03 22.6   22.8R 07VL305   688  C~02Mm      
2008 12  01.30444  02 15 32.70   +00 03 19.4         07VL305   688  C~02Mm      
2008 12  16.22458  02 14 25.34   -00 00 09.8   23.2R 07VL305   250  S~06BM      
2008 12  16.23083  02 14 25.32   -00 00 09.8         07VL305   250  S~06BM      
2008 12  16.23777  02 14 25.30   -00 00 09.8         07VL305   250  S~06BM      
2008 12  16.29124  02 14 25.09   -00 00 10.2         07VL305   250  S~06BM      
2011 01  10.13144  02 33 28.56   -00 29 48.1   22.0R 07VL305   695  C~0U4W      
2011 01  10.22789  02 33 28.42   -00 29 46.6         07VL305   695  C~0U4W      
2011 01  10.26848  02 33 28.36   -00 29 46.1         07VL305   695  C~0U4W      

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     0.25       0.00    -0.05
  2   0.0000     -0.63    -0.03       0.03    -0.00
  3   0.9147  11556.68     0.26   -3827.17     0.08
  4   0.9147  11556.29     0.22   -3827.34    -0.04
  5   1.0568   6227.88     0.12   -4186.64     0.01
  6   1.0568   6227.25    -0.23   -4186.61     0.03
  7   1.8839  20915.48    -0.09   -7792.37     0.16
  8   1.8839  20915.06    -0.21   -7792.64    -0.03
  9   1.9578  18176.89    -0.16   -8253.31    -0.02
 10   1.9578  18176.64    -0.31   -8253.11     0.19
 11   2.0014  16447.74    -0.11   -8371.00     0.21
 12   2.0014  16447.42    -0.07   -8370.98     0.24
 13   2.0095  16134.71    -0.08   -8380.56    -0.05
 14   2.0095  16134.39    -0.05   -8380.54    -0.03
 15   2.0206  15714.63    -0.11   -8387.13    -0.21
 16   2.0206  15714.35    -0.30   -8386.59     0.33
 17   2.0260  15513.21     0.11   -8387.47     0.01
 18   2.0260  15512.58    -0.19   -8387.44     0.04
 19   2.8422  30425.03     0.11  -11603.59    -0.04
 20   2.8423  30425.03     0.16  -11603.59    -0.01
 21   2.8423  30424.82     0.11  -11603.72    -0.07
 22   3.0770  22108.29     0.07  -12518.51     0.43
 23   3.0773  22097.62     0.00  -12517.86    -0.14
 24   3.1182  21065.83     0.08  -12346.40    -0.42
 25   3.1182  21065.55     0.15  -12346.29    -0.39
 26   3.1182  21065.26     0.25  -12346.18    -0.38
 27   3.1184  21062.14     0.11  -12345.41    -0.34
 28   5.1850  36841.12    -0.01  -20367.10     0.20
 29   5.1853  36839.63     0.00  -20364.88     0.19
 30   5.1854  36838.93    -0.08  -20364.06     0.08

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.

07VL305    quality flag:3

Type:            1:1       1:1       1:1

axisobj        30.246    30.251    30.241
ecceobj         0.070     0.070     0.069
incobj         28.050    28.050    28.050
qmin           27.269    27.295    27.295
qmax           33.092    33.115    33.110
amean          30.109    30.109    30.109
amin           29.831    29.839    29.831
amax           30.422    30.416    30.405
emean           0.065     0.065     0.065
emin            0.039     0.040     0.039
emax            0.090     0.090     0.090
imean          27.842    27.842    27.842
imin           27.635    27.623    27.628
imax           28.061    28.062    28.055
excite_mean     0.472     0.472     0.472
fracstop        1.000     1.000     1.000
cjmean          2.764     2.764     2.764

libcent 0        59.9      60.1      60.1
libamp  0        16.7      16.6      17.4
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       177.1     177.1     177.0
kozaiamp        180.0     180.0     180.0