Orbit Fit and Astrometric record for 04UW10

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: 04UW10    
# Created Thu Mar 28 01:12:15 2024
# Orbit generated from Bernstein formalism
# Fitting      6 observations of      6
# Arc:  58.14d
# First observation: 2004/10/17
#  Last observation: 2004/12/14
Preliminary a, adot, b, bdot, g, gdot:
  -0.000000   0.053517  -0.000000   0.003206   0.036159   0.000000
# WARNING MRQMIN stopped after  13 iterations -- oscilliatory solution
# WARNING Fitting with energy constraint
# Chi-squared of fit:    13.13 DOF:      7 RMS:  0.26
# Min/Max residuals:    -0.62    0.45
# Exact a, adot, b, bdot, g, gdot:
  2.073926E-05  4.604346E-02  1.211129E-06  3.427378E-03  3.510626E-02 -7.423821E-03
# Covariance matrix:
  7.0760E-13  4.8951E-10 -4.7067E-15 -1.4248E-11  7.1227E-11 -7.6644E-09
  4.8951E-10  1.1184E-06 -1.0993E-11 -3.3638E-08  1.5396E-07 -1.9332E-05
 -4.7067E-15 -1.0993E-11  4.8765E-13 -2.7619E-12 -1.3620E-12  2.2786E-10
 -1.4248E-11 -3.3638E-08 -2.7619E-12  1.1587E-09 -3.9962E-09  7.4010E-07
  7.1227E-11  1.5396E-07 -1.3620E-12 -3.9962E-09  2.4993E-08 -1.7125E-06
 -7.6644E-09 -1.9332E-05  2.2786E-10  7.4010E-07 -1.7125E-06  5.7133E-04
#      lat0       lon0       xBary       yBary       zBary        JD0
   -1.480054   17.089167   -0.119121   -0.025523   -0.992602  2453295.674393
# Heliocentric elements and errors
Epoch:              2453290.5000  =  2004/10/12
Mean Anomaly:          343.71991 +/-    34.294
Argument of Peri:       16.64607 +/-    84.631
Long of Asc Node:       35.78791 +/-     0.503
Inclination:             4.50842 +/-     0.118
Eccentricity:         0.35294970 +/-    0.4215
Semi-Major Axis:     43.38307330 +/-   16.1297
Time of Perihelion: 2458010.4051 +/-    9587.6
Perihelion:          28.07103065 +/-   21.0529
Aphelion:            58.69511594 +/-   28.4698
Period (y)              285.7516 +/-    159.36
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           28.12790564 +/-    0.1226
Ecliptic Y            8.77483725 +/-    0.0377
Ecliptic Z           -0.73572885 +/-    0.0033
Ecliptic XDOT        -0.00160322 +/-    0.0018
Ecliptic YDOT         0.00325709 +/-    0.0005
Ecliptic ZDOT         0.00028225 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   29.47402486 +/-    0.1175
Geocenter to KBO     28.48494754 +/-    0.1283
# Hcoef: 10.53

The following table shows the complete astrometric record for 04UW10. 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 (04UW10) followed by the observatory code and reference code for the source of the astrometry.

2004 10  17.17365  01 05 17.02   +05 20 42.3         04UW10    304  Co7494      
2004 10  17.21834  01 05 16.74   +05 20 40.6         04UW10    304  Co7494      
2004 10  17.26304  01 05 16.47   +05 20 39.1         04UW10    304  Co7494      
2004 12  12.31346  01 01 06.10   +04 58 33.6   25. R 04UW10    568  Co7494      
2004 12  13.32341  01 01 04.28   +04 58 28.6         04UW10    568  Co7494      
2004 12  14.31742  01 01 02.71   +04 58 23.6         04UW10    568  Co7494      

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    -0.00       0.00     0.07
     2   0.0001     -4.51    -0.07       0.03    -0.04
     3   0.0002     -8.81     0.07       0.18    -0.02
     4   0.1537  -3972.17     0.17     206.79    -0.62
     5   0.1565  -3999.22    -0.33     212.61     0.45
     6   0.1592  -4022.81     0.16     216.98     0.16

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.

04UW10    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