Orbit Fit and Astrometric record for 04LV31

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: 04LV31    
# Created Wed Nov 27 02:08:35 2024
# Orbit generated from Bernstein formalism
# Fitting     10 observations of     10
# Arc:   1.15y
# First observation: 2004/06/09
#  Last observation: 2005/08/03
Preliminary a, adot, b, bdot, g, gdot:
  -0.000000   0.021033   0.000001  -0.002398   0.022858   0.000000
# Chi-squared of fit:    10.42 DOF:     14 RMS:  0.18
# Min/Max residuals:    -0.45    0.31
# Exact a, adot, b, bdot, g, gdot:
  1.457990E-05  2.102695E-02 -1.322866E-06 -2.387900E-03  2.287039E-02 -7.832977E-03
# Covariance matrix:
  3.3565E-13  3.2990E-12  3.4596E-14 -1.3343E-12  2.0130E-12  4.5673E-10
  3.2990E-12  4.9892E-10  5.4970E-12 -2.1320E-10  2.2563E-10  7.2839E-08
  3.4596E-14  5.4970E-12  2.8187E-13 -2.5619E-12  2.4696E-12  8.0589E-10
 -1.3343E-12 -2.1320E-10 -2.5619E-12  9.2055E-11 -9.5745E-11 -3.1260E-08
  2.0130E-12  2.2563E-10  2.4696E-12 -9.5745E-11  1.0418E-10  3.2716E-08
  4.5673E-10  7.2839E-08  8.0589E-10 -3.1260E-08  3.2716E-08  1.0680E-05
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.388913  -90.381514    0.186312    0.024256   -0.998691  2453165.889393
# Heliocentric elements and errors
Epoch:              2453160.5000  =  2004/06/04
Mean Anomaly:          305.79301 +/-    13.045
Argument of Peri:      263.72144 +/-     1.973
Long of Asc Node:      101.12121 +/-     0.018
Inclination:             6.64184 +/-     0.010
Eccentricity:         0.36115042 +/-    0.1488
Semi-Major Axis:     49.63548715 +/-    6.0459
Time of Perihelion: 2472393.1720 +/-    3012.3
Perihelion:          31.70961013 +/-    8.3326
Aphelion:            67.56136417 +/-   11.0561
Period (y)              349.7008 +/-     63.89
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           -0.48735024 +/-    0.0001
Ecliptic Y          -44.70681704 +/-    0.0195
Ecliptic Z            1.05981261 +/-    0.0005
Ecliptic XDOT         0.00252080 +/-    0.0000
Ecliptic YDOT         0.00090674 +/-    0.0004
Ecliptic ZDOT        -0.00030839 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.72203263 +/-    0.0195
Geocenter to KBO     43.72466122 +/-    0.0195
# Hcoef:  8.74

The following table shows the complete astrometric record for 04LV31. 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 (04LV31) followed by the observatory code and reference code for the source of the astrometry.

2004 06  09.38865  17 58 21.24   -22 02 59.4   25.5R 04LV31    568  C~0fDa      
2004 06  10.36210  17 58 16.57   -22 03 00.1   24.8R 04LV31    568  C~0fDa      
2004 06  10.43758  17 58 16.20   -22 03 00.1   25.1R 04LV31    568  C~0fDa      
2004 06  11.37750  17 58 11.70   -22 03 01.0   24.6R 04LV31    568  C~0fDa      
2004 06  11.46267  17 58 11.27   -22 03 01.2   25.9R 04LV31    568  C~0fDa      
2004 07  14.35245  17 55 34.28   -22 03 40.9   24.3R 04LV31    568  C~0fDa      
2004 07  15.31868  17 55 30.05   -22 03 42.8   25.3R 04LV31    568  C~0fDa      
2005 08  02.30309  17 59 31.39   -22 12 54.7   24.2R 04LV31    568  C~0fDa      
2005 08  03.30835  17 59 27.90   -22 12 56.4   24.5R 04LV31    568  C~0fDa      
2005 08  03.39259  17 59 27.60   -22 12 56.8   24.6R 04LV31    568  C~0fDa      

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    -0.01       0.00    -0.07
     2   0.0027    -64.92    -0.07      -0.89    -0.00
     3   0.0029    -70.07    -0.09      -0.91     0.07
     4   0.0054   -132.63     0.18      -2.00    -0.07
     5   0.0057   -138.61     0.01      -2.21    -0.19
     6   0.0957  -2320.98    -0.16     -53.43     0.30
     7   0.0984  -2379.78     0.14     -55.77    -0.01
     8   1.1469    975.85    -0.26    -593.45    -0.45
     9   1.1497    927.39     0.14    -595.20     0.31
    10   1.1499    923.22     0.12    -595.61     0.11

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.

04LV31    quality flag:0

Type:      ERR2LARGE ERR2LARGE ERR2LARGE

axisobj         0.000     0.000     0.000
ecceobj        -1.000    -1.000    -1.000
incobj         -1.000    -1.000    -1.000
qmin            0.000     0.000     0.000
qmax            0.000     0.000     0.000
amean           0.000     0.000     0.000
amin            0.000     0.000     0.000
amax            0.000     0.000     0.000
emean           0.000     0.000     0.000
emin            0.000     0.000     0.000
emax            0.000     0.000     0.000
imean           0.000     0.000     0.000
imin            0.000     0.000     0.000
imax            0.000     0.000     0.000
excite_mean     0.000     0.000     0.000
fracstop        0.000     0.000     0.000
cjmean          0.000     0.000     0.000

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         0.0       0.0       0.0
kozaiamp          0.0       0.0       0.0