Orbit Fit and Astrometric record for 02VV130

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: 02VV130   
# Created Sun Dec  5 02:09:27 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     22 observations of     22
# Arc:  18.85y
# First observation: 2002/11/07
#  Last observation: 2021/09/13
# Chi-squared of fit:    32.39 DOF:     38 RMS:  0.21
# Min/Max residuals:    -0.42    0.58
# Exact a, adot, b, bdot, g, gdot:
  1.838332E-05  2.990915E-02 -2.029667E-06 -1.097507E-03  2.760382E-02 -3.837394E-03
# Covariance matrix:
  7.2481E-13 -2.1863E-13 -1.1992E-14  4.2615E-15  1.3308E-12 -1.6338E-13
 -2.1863E-13  8.1920E-14  4.6063E-15 -1.7769E-15 -4.5932E-13  6.8718E-14
 -1.1992E-14  4.6063E-15  1.6000E-13 -1.0515E-14 -2.6732E-14  3.8821E-15
  4.2615E-15 -1.7769E-15 -1.0515E-14  1.3946E-15  8.3691E-15 -1.6895E-15
  1.3308E-12 -4.5932E-13 -2.6732E-14  8.3691E-15  3.3846E-12 -3.1611E-13
 -1.6338E-13  6.8718E-14  3.8821E-15 -1.6895E-15 -3.1611E-13  6.6080E-14
#      lat0       lon0       xBary       yBary       zBary        JD0
   -1.188649   19.962750   -0.406790   -0.018720   -0.900528  2452585.644793
# Heliocentric elements and errors
Epoch:              2452586.5000  =  2002/11/08
Mean Anomaly:          323.22670 +/-     0.026
Argument of Peri:      259.92286 +/-     0.037
Long of Asc Node:      171.48743 +/-     0.001
Inclination:             2.38283 +/-     0.000
Eccentricity:         0.17127015 +/-    0.0002
Semi-Major Axis:     42.39422552 +/-    0.0184
Time of Perihelion: 2462885.3468 +/-      59.3
Perihelion:          35.13336020 +/-    0.0176
Aphelion:            49.65509084 +/-    0.0233
Period (y)              276.0376 +/-      0.18
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           34.74937042 +/-    0.0024
Ecliptic Y           13.06099999 +/-    0.0008
Ecliptic Z           -0.75155709 +/-    0.0001
Ecliptic XDOT        -0.00138002 +/-    0.0000
Ecliptic YDOT         0.00265414 +/-    0.0000
Ecliptic ZDOT        -0.00010073 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.13056440 +/-    0.0022
Geocenter to KBO     36.22698494 +/-    0.0025
# Hcoef:  7.51

The following table shows the complete astrometric record for 02VV130. 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 (02VV130) followed by the observatory code and reference code for the source of the astrometry.

2002 11  07.14405  01 15 31.88   +06 42 15.0   22.7R 02VV130   695  Cg8319      
2002 11  07.25151  01 15 31.39   +06 42 11.9         02VV130   695  Cg8319      
2002 12  01.31020  01 14 00.14   +06 33 14.6   23.4R 02VV130   568  Cg8319      
2002 12  01.35629  01 14 00.00   +06 33 13.6         02VV130   568  Cg8319      
2002 12  02.32582  01 13 57.23   +06 32 57.6         02VV130   568  Cg8319      
2002 12  05.08615  01 13 49.65   +06 32 15.0   22.7R 02VV130   695  Ch1653      
2002 12  05.19676  01 13 49.35   +06 32 13.5         02VV130   695  Ch1653      
2002 12  06.21327  01 13 46.78   +06 31 59.2         02VV130   695  Ch1653      
2003 10  23.16899  01 23 17.04   +07 24 46.6   22.5R 02VV130   695  Cj4694      
2003 10  23.26429  01 23 16.54   +07 24 43.6         02VV130   695  Cj4694      
2003 11  20.13563  01 21 08.19   +07 12 03.0   22.8R 02VV130   695  Cj4694      
2003 11  20.21942  01 21 07.86   +07 12 01.1         02VV130   695  Cj4694      
2004 09  17.50381  01 32 43.07   +08 17 03.6   23.2R 02VV130   568  Cl5726      
2004 09  17.54577  01 32 42.88   +08 17 02.6         02VV130   568  Cl5726      
2008 11  02.391039 01 55 57.03   +10 12 33.6   22.6V 02VV130   645  C~2Jx8      
2008 11  02.391868 01 55 57.03   +10 12 33.7   22.8V 02VV130   645  C~2Jx8      
2008 11  02.394356 01 55 57.01   +10 12 33.6   23.7V 02VV130   645  C~2Jx8      
2014 08  29.59434  02 42 54.544  +13 52 05.27  23.2r 02VV130   568  C~18Ad      
2014 08  29.63456  02 42 54.491  +13 52 04.90  23.2r 02VV130   568  C~18Ad      
2021 09  13.38980  03 34 20.81   +17 01 54.5         02VV130   G37  C~553b      
2021 09  13.41802  03 34 20.76   +17 01 54.3         02VV130   G37  C~553b      
2021 09  13.47420  03 34 20.66   +17 01 53.7         02VV130   G37  C~553b      

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    -0.35       0.00     0.17
     2   0.0003      0.00    -0.30       0.00    -0.03
     3   0.0662      0.00     0.10       0.00    -0.20
     4   0.0663      0.00     0.10       0.00    -0.42
     5   0.0689      0.00     0.58       0.00    -0.39
     6   0.0765      0.00    -0.06       0.00    -0.07
     7   0.0768      0.00    -0.09       0.00     0.06
     8   0.0796      0.00     0.43       0.00     0.44
     9   0.9583      0.00     0.01       0.00     0.29
    10   0.9586      0.00    -0.17       0.00     0.18
    11   1.0349      0.00    -0.35       0.00     0.00
    12   1.0351      0.00    -0.26       0.00     0.01
    13   1.8627      0.00     0.15       0.00     0.05
    14   1.8628      0.00     0.05       0.00     0.17
    15   5.9884      0.00     0.14       0.00    -0.21
    16   5.9884      0.00     0.21       0.00    -0.09
    17   5.9884      0.00     0.10       0.00    -0.11
    18  11.8096      0.00    -0.22       0.00     0.09
    19  11.8097      0.00    -0.11       0.00     0.13
    20  18.8508      0.00     0.03       0.00    -0.04
    21  18.8509      0.00     0.03       0.00     0.02
    22  18.8510      0.00     0.03       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.

02VV130    quality flag:3

Type:          5:3EE     5:3EE     5:3EE

axisobj        42.721    42.721    42.721
ecceobj         0.174     0.174     0.174
incobj          2.377     2.377     2.377
qmin           34.733    34.734    34.733
qmax           50.315    50.309    50.321
amean          42.328    42.328    42.328
amin           41.939    41.939    41.939
amax           42.738    42.737    42.738
emean           0.163     0.163     0.163
emin            0.149     0.149     0.149
emax            0.178     0.177     0.178
imean           2.621     2.621     2.621
imin            2.141     2.141     2.141
imax            3.151     3.150     3.151
excite_mean     0.169     0.169     0.169
fracstop        1.000     1.000     1.000
cjmean          3.048     3.048     3.048

libcent 0       179.2     179.3     179.0
libamp  0        30.5      30.6      30.7
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       170.3     170.3     170.4
kozaiamp        180.0     180.0     180.0