Orbit Fit and Astrometric record for 04LB33

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: 04LB33    
# Created Tue May  7 01:11:49 2024
# Orbit generated from Bernstein formalism
# Fitting      5 observations of      5
# Arc:   2.06d
# First observation: 2004/06/09
#  Last observation: 2004/06/11
# WARNING Fitting with energy constraint
# WARNING and with gdot fixed = 0
# Chi-squared of fit:     1.18 DOF:      6 RMS:  0.09
# Min/Max residuals:    -0.15    0.18
# Exact a, adot, b, bdot, g, gdot:
  1.591267E-05  2.631591E-02  6.981332E-07  1.562245E-03  2.604754E-02  0.000000E+00
# Covariance matrix:
  3.6113E-11  5.8233E-08 -1.6586E-13 -2.9349E-10  9.5386E-09  0.0000E+00
  5.8233E-08  9.5735E-05 -2.7199E-10 -4.8135E-07  1.5644E-05  0.0000E+00
 -1.6586E-13 -2.7199E-10  5.4012E-13 -1.0885E-10 -4.4470E-11  0.0000E+00
 -2.9349E-10 -4.8135E-07 -1.0885E-10  5.1887E-08 -7.8697E-08  0.0000E+00
  9.5386E-09  1.5644E-05 -4.4470E-11 -7.8697E-08  2.5576E-06  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  2.3255E-04
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.911322  -92.179861    0.155508    0.033538   -1.003671  2453165.851743
# Heliocentric elements and errors
Epoch:              2453160.5000  =  2004/06/04
Mean Anomaly:          355.81291 +/-   140.227
Argument of Peri:       33.04392 +/-   206.472
Long of Asc Node:      238.94238 +/-    10.270
Inclination:             3.88101 +/-     1.274
Eccentricity:         0.02055677 +/-    0.5701
Semi-Major Axis:     40.21823185 +/-   21.0061
Time of Perihelion: 2454244.0352 +/-  408930.0
Perihelion:          39.39147481 +/-   30.8051
Aphelion:            41.04498889 +/-   31.3885
Period (y)              255.0602 +/-    199.83
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           -1.65641247 +/-    0.0898
Ecliptic Y          -39.33807680 +/-    2.3541
Ecliptic Z            1.28051944 +/-    0.0786
Ecliptic XDOT         0.00276175 +/-    0.0009
Ecliptic YDOT        -0.00010671 +/-    0.0016
Ecliptic ZDOT         0.00016423 +/-    0.0001
# Distances at JD0 (AU)
Heliocenter to KBO   39.39375228 +/-    2.3508
Geocenter to KBO     38.39134807 +/-    2.3571
# Hcoef:  8.58

The following table shows the complete astrometric record for 04LB33. 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 (04LB33) followed by the observatory code and reference code for the source of the astrometry.

2004 06  09.35100  17 50 37.96   -21 30 36.9   24.2R 04LB33    568  C~3z1g      
2004 06  09.42637  17 50 37.55   -21 30 36.8   24.1R 04LB33    568  C~3z1g      
2004 06  10.39988  17 50 32.31   -21 30 34.3   24.7R 04LB33    568  C~3z1g      
2004 06  11.33984  17 50 27.24   -21 30 31.9   24.7R 04LB33    568  C~3z1g      
2004 06  11.41517  17 50 26.85   -21 30 31.6   23.0R 04LB33    568  C~3z1g      

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     0.05
     2   0.0002     -5.72     0.03       0.01    -0.03
     3   0.0029    -78.88    -0.07       1.31    -0.05
     4   0.0054   -149.66    -0.15       2.55    -0.05
     5   0.0057   -155.11     0.18       2.75     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.

04LB33    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