Orbit Fit and Astrometric record for 04VZ130

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: 04VZ130   
# Created Sat Nov 27 02:10:15 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     33 observations of     33
# Arc:  16.17y
# First observation: 2004/11/09
#  Last observation: 2021/01/11
# Chi-squared of fit:    67.04 DOF:     60 RMS:  0.25
# Min/Max residuals:    -0.63    0.76
# Exact a, adot, b, bdot, g, gdot:
  1.919100E-05  4.522516E-02  5.872712E-06  9.255843E-03  3.548290E-02  4.778102E-03
# Covariance matrix:
  2.4026E-13 -1.0181E-13  3.4299E-14 -2.0776E-14  6.5004E-14 -1.3119E-13
 -1.0181E-13  5.9031E-14 -2.0743E-14  1.2596E-14 -3.3270E-14  7.9202E-14
  3.4299E-14 -2.0743E-14  9.1883E-14 -1.1982E-14  1.4698E-14 -2.8872E-14
 -2.0776E-14  1.2596E-14 -1.1982E-14  4.3194E-15 -8.3305E-15  1.7468E-14
  6.5004E-14 -3.3270E-14  1.4698E-14 -8.3305E-15  1.3905E-13 -5.8766E-14
 -1.3119E-13  7.9202E-14 -2.8872E-14  1.7468E-14 -5.8766E-14  1.1052E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.546658   42.492114   -0.078963    0.009547   -0.989641  2453318.893103
# Heliocentric elements and errors
Epoch:              2453318.5000  =  2004/11/09
Mean Anomaly:           15.34768 +/-     0.002
Argument of Peri:      334.74076 +/-     0.003
Long of Asc Node:       40.07921 +/-     0.000
Inclination:            11.59892 +/-     0.000
Eccentricity:         0.27929329 +/-    0.0000
Semi-Major Axis:     39.44747608 +/-    0.0029
Time of Perihelion: 2449460.4535 +/-       0.7
Perihelion:          28.43006088 +/-    0.0028
Aphelion:            50.46489129 +/-    0.0041
Period (y)              247.7633 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           21.45187193 +/-    0.0002
Ecliptic Y           19.76398154 +/-    0.0002
Ecliptic Z            0.26904498 +/-    0.0000
Ecliptic XDOT        -0.00209151 +/-    0.0000
Ecliptic YDOT         0.00281034 +/-    0.0000
Ecliptic ZDOT         0.00071775 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   29.16961842 +/-    0.0002
Geocenter to KBO     28.18257718 +/-    0.0003
# Hcoef:  8.71

The following table shows the complete astrometric record for 04VZ130. 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 (04VZ130) followed by the observatory code and reference code for the source of the astrometry.

2004 11  09.39236  02 39 29.59   +16 06 25.9   23.5g 04VZ130   568  C~0Ur5      
2004 11  09.41885  02 39 29.38   +16 06 25.6   23.4g 04VZ130   568  C~0Ur5      
2004 11  09.44482  02 39 29.19   +16 06 25.2   23.6g 04VZ130   568  C~0Ur5      
2004 11  10.30935  02 39 23.32   +16 06 02.9   23.8g 04VZ130   568  C~0Ur5      
2005 01  05.22862  02 34 44.16   +15 48 41.7         04VZ130   568  C~0Ur5      
2005 01  05.30187  02 34 44.04   +15 48 41.3   23.7i 04VZ130   568  C~0Ur5      
2005 01  05.35469  02 34 43.92   +15 48 40.9   23.9i 04VZ130   568  C~0Ur5      
2006 10  26.37867  03 00 22.21   +18 42 24.6   23.8r 04VZ130   568  C~0Ur5      
2006 10  26.61929  03 00 20.54   +18 42 19.0   24.0r 04VZ130   568  C~0Ur5      
2006 10  27.44834  03 00 15.04   +18 42 01.4   23.5r 04VZ130   568  C~0Ur5      
2006 10  27.50210  03 00 14.67   +18 42 00.4   22.8r 04VZ130   568  C~0Ur5      
2006 10  27.54979  03 00 14.35   +18 41 59.3   23.2r 04VZ130   568  C~0Ur5      
2006 11  25.26321  02 56 59.01   +18 30 48.7         04VZ130   695  C~0Ur5      
2006 11  25.34497  02 56 58.44   +18 30 46.9         04VZ130   695  C~0Ur5      
2007 01  15.26114  02 53 13.24   +18 17 09.3         04VZ130   568  C~0Ur5      
2007 01  15.30994  02 53 13.16   +18 17 09.3         04VZ130   568  C~0Ur5      
2007 01  15.35408  02 53 13.09   +18 17 09.1         04VZ130   568  C~0Ur5      
2007 01  16.26008  02 53 11.82   +18 17 05.0         04VZ130   568  C~0Ur5      
2007 01  16.30031  02 53 11.77   +18 17 04.4         04VZ130   568  C~0Ur5      
2007 01  16.34013  02 53 11.71   +18 17 04.7         04VZ130   568  C~0Ur5      
2007 09  11.50707  03 13 37.09   +20 01 21.1   23.3r 04VZ130   695  C~0Ur5      
2007 09  12.43686  03 13 34.84   +20 01 20.5   23.8r 04VZ130   695  C~0Ur5      
2007 09  12.47916  03 13 34.73   +20 01 20.6   23.8r 04VZ130   695  C~0Ur5      
2007 11  08.23090  03 08 36.00   +19 48 55.8   21.6r 04VZ130   695  C~0Ur5      
2007 11  08.36410  03 08 35.06   +19 48 52.9   21.8r 04VZ130   695  C~0Ur5      
2009 08  18.41015  03 32 45.59   +22 06 49.5         04VZ130   675  C~0Ur5      
2009 08  18.44758  03 32 45.64   +22 06 50.0         04VZ130   675  C~0Ur5      
2009 08  19.45471  03 32 47.04   +22 07 05.8         04VZ130   675  C~0Ur5      
2020 02  18.115960 04 55 35.461  +29 51 15.39  24.0G 04VZ130   G37  C~3iMM      
2020 02  18.283340 04 55 35.293  +29 51 13.83        04VZ130   G37  C~3iMM      
2021 01  11.278220 05 07 12.653  +30 31 43.41  24.5G 04VZ130   G37  C~4Ty3      
2021 01  11.324190 05 07 12.363  +30 31 42.89        04VZ130   G37  C~4Ty3      
2021 01  11.368890 05 07 12.135  +30 31 42.29        04VZ130   G37  C~4Ty3      

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     0.31       0.00    -0.28
     2   0.0001      0.00    -0.09       0.00     0.11
     3   0.0001      0.00    -0.25       0.00     0.38
     4   0.0025      0.00    -0.63       0.00     0.55
     5   0.1556      0.00    -0.62       0.00    -0.03
     6   0.1558      0.00     0.04       0.00     0.01
     7   0.1560      0.00    -0.01       0.00    -0.08
     8   1.9603      0.00     0.76       0.00     0.12
     9   1.9609      0.00     0.06       0.00    -0.30
    10   1.9632      0.00     0.04       0.00    -0.07
    11   1.9633      0.00    -0.03       0.00     0.09
    12   1.9635      0.00     0.02       0.00     0.04
    13   2.0421      0.00     0.75       0.00     0.11
    14   2.0423      0.00     0.37       0.00     0.24
    15   2.1817      0.00    -0.05       0.00    -0.10
    16   2.1818      0.00    -0.07       0.00     0.14
    17   2.1820      0.00    -0.07       0.00     0.16
    18   2.1844      0.00    -0.05       0.00    -0.01
    19   2.1846      0.00     0.08       0.00    -0.44
    20   2.1847      0.00     0.05       0.00     0.04
    21   2.8367      0.00     0.18       0.00    -0.06
    22   2.8393      0.00     0.12       0.00    -0.23
    23   2.8394      0.00     0.12       0.00    -0.11
    24   2.9948      0.00     0.10       0.00    -0.15
    25   2.9951      0.00     0.07       0.00    -0.13
    26   4.7721      0.00    -0.34       0.00    -0.01
    27   4.7722      0.00    -0.37       0.00    -0.12
    28   4.7750      0.00    -0.39       0.00    -0.00
    29  15.2737      0.00     0.03       0.00    -0.16
    30  15.2742      0.00     0.21       0.00     0.27
    31  16.1722      0.00    -0.02       0.00     0.03
    32  16.1723      0.00    -0.31       0.00     0.07
    33  16.1724      0.00     0.20       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.

04VZ130    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        40.020    40.020    40.020
ecceobj         0.289     0.290     0.289
incobj         11.555    11.555    11.555
qmin           27.527    27.527    27.532
qmax           52.145    52.146    52.112
amean          39.455    39.455    39.455
amin           38.965    38.965    38.966
amax           40.067    40.064    40.043
emean           0.282     0.282     0.282
emin            0.262     0.262     0.262
emax            0.303     0.303     0.303
imean          10.425    10.426    10.430
imin            9.440     9.440     9.439
imax           11.283    11.283    11.283
excite_mean     0.335     0.335     0.335
fracstop        1.000     1.000     1.000
cjmean          2.923     2.923     2.923

libcent 0       179.5     180.0     180.2
libamp  0        91.5      91.8      92.1
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       167.6     167.6     167.5
kozaiamp        180.0     180.0     180.0