Orbit Fit and Astrometric record for 03WO193

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: 03WO193   
# Created Tue Dec  7 02:09:52 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     29 observations of     29
# Arc:  13.26y
# First observation: 2003/09/28
#  Last observation: 2017/01/01
# Chi-squared of fit:    63.54 DOF:     52 RMS:  0.26
# Min/Max residuals:    -0.66    0.62
# Exact a, adot, b, bdot, g, gdot:
  1.887405E-05  4.004704E-02 -7.191724E-07 -4.165457E-04  3.287135E-02  5.842619E-03
# Covariance matrix:
  3.9997E-13  3.9928E-14 -1.8192E-14 -2.2686E-15  4.1167E-13  4.2255E-14
  3.9928E-14  1.1290E-13 -4.0865E-15 -1.0222E-15  1.0003E-13  2.2022E-13
 -1.8192E-14 -4.0865E-15  6.1854E-14 -6.1201E-15 -2.2777E-14 -5.6452E-15
 -2.2686E-15 -1.0222E-15 -6.1201E-15  4.4923E-15 -3.0610E-15 -1.7803E-15
  4.1167E-13  1.0003E-13 -2.2777E-14 -3.0610E-15  5.1867E-13  1.4361E-13
  4.2255E-14  2.2022E-13 -5.6452E-15 -1.7803E-15  1.4361E-13  4.5556E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   -6.806933   17.493547    0.225154   -0.116043   -0.972431  2452910.842056
# Heliocentric elements and errors
Epoch:              2452910.5000  =  2003/09/28
Mean Anomaly:           25.72435 +/-     0.007
Argument of Peri:      222.17829 +/-     0.010
Long of Asc Node:      113.01812 +/-     0.001
Inclination:             6.63049 +/-     0.000
Eccentricity:         0.24175211 +/-    0.0001
Semi-Major Axis:     39.33839236 +/-    0.0044
Time of Perihelion: 2446470.8051 +/-       2.1
Perihelion:          29.82825294 +/-    0.0041
Aphelion:            48.84853177 +/-    0.0059
Period (y)              246.7363 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           29.80868105 +/-    0.0006
Ecliptic Y            9.16384506 +/-    0.0002
Ecliptic Z           -3.60570454 +/-    0.0001
Ecliptic XDOT        -0.00055067 +/-    0.0000
Ecliptic YDOT         0.00331935 +/-    0.0000
Ecliptic ZDOT        -0.00009196 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   31.39314593 +/-    0.0006
Geocenter to KBO     30.42157479 +/-    0.0007
# Hcoef:  8.27

The following table shows the complete astrometric record for 03WO193. 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 (03WO193) followed by the observatory code and reference code for the source of the astrometry.

2003 09  28.341313 01 14 53.79   +00 34 19.5         03WO193   645  C~4q3v      
2003 09  28.342143 01 14 53.77   +00 34 18.9         03WO193   645  C~4q3v      
2003 10  22.262219 01 12 36.23   +00 20 06.4         03WO193   645  C~4q3v      
2003 10  22.263048 01 12 36.24   +00 20 06.7         03WO193   645  C~4q3v      
2003 10  24.257894 01 12 24.82   +00 19 02.6         03WO193   645  C~4q3v      
2003 10  24.258723 01 12 24.81   +00 19 02.5         03WO193   645  C~4q3v      
2003 11  16.208671 01 10 25.60   +00 09 08.4         03WO193   645  C~4q3v      
2003 11  16.209500 01 10 25.58   +00 09 08.8         03WO193   645  C~4q3v      
2003 11  20.188444 01 10 08.18   +00 07 57.5   23.0V 03WO193   645  C~2Jx9      
2003 11  20.189274 01 10 08.18   +00 07 57.5   22.7V 03WO193   645  C~2Jx9      
2003 11  20.191762 01 10 08.18   +00 07 57.5   23.6V 03WO193   645  C~2Jx9      
2003 11  29.08151  01 09 34.05   +00 05 59.4   23.2R 03WO193   807  Cv6182      
2003 11  29.10165  01 09 33.98   +00 05 59.0   22.6I 03WO193   807  Cv6182      
2003 12  13.07286  01 08 56.12   +00 04 53.5   23.2R 03WO193   807  Cv6182      
2003 12  13.08819  01 08 56.09   +00 04 53.5   22.5I 03WO193   807  Cv6182      
2003 12  17.05614  01 08 49.21   +00 05 02.7   23.3R 03WO193   807  Cv6182      
2003 12  17.07133  01 08 49.18   +00 05 02.8   22.5I 03WO193   807  Cv6182      
2003 12  21.07381  01 08 44.08   +00 05 25.1   22.9I 03WO193   807  Cv6182      
2003 12  23.07394  01 08 42.24   +00 05 41.1   23.4R 03WO193   807  Cv6182      
2003 12  23.09435  01 08 42.22   +00 05 41.0   22.6I 03WO193   807  Cv6182      
2003 12  25.06498  01 08 40.90   +00 06 00.0   23.1R 03WO193   807  Cv6182      
2003 12  27.07171  01 08 40.02   +00 06 22.3   23.3R 03WO193   807  Cv6182      
2003 12  27.08958  01 08 40.01   +00 06 22.6   22.4I 03WO193   807  Cv6182      
2003 12  29.07139  01 08 39.63   +00 06 47.9   22.4I 03WO193   807  Cv6182      
2006 12  25.298499 01 33 18.57   +02 32 34.9         03WO193   568  C~4q3v      
2006 12  25.321093 01 33 18.54   +02 32 35.1         03WO193   568  C~4q3v      
2006 12  25.332838 01 33 18.52   +02 32 35.1         03WO193   568  C~4q3v      
2017 01  01.238300 02 50 17.84   +09 47 31.1         03WO193   568  C~4q3v      
2017 01  01.305112 02 50 17.66   +09 47 31.2         03WO193   568  C~4q3v      

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     0.03       0.00     0.13
     2   0.0000      0.00    -0.20       0.00    -0.44
     3   0.0655      0.00     0.12       0.00    -0.66
     4   0.0655      0.00     0.34       0.00    -0.33
     5   0.0710      0.00    -0.17       0.00    -0.49
     6   0.0710      0.00    -0.25       0.00    -0.57
     7   0.1338      0.00     0.55       0.00    -0.26
     8   0.1338      0.00     0.31       0.00     0.16
     9   0.1447      0.00     0.41       0.00     0.03
    10   0.1447      0.00     0.46       0.00     0.04
    11   0.1447      0.00     0.62       0.00     0.08
    12   0.1690      0.00    -0.18       0.00     0.36
    13   0.1691      0.00    -0.16       0.00     0.16
    14   0.2073      0.00    -0.04       0.00     0.17
    15   0.2074      0.00    -0.02       0.00     0.16
    16   0.2182      0.00     0.02       0.00     0.01
    17   0.2183      0.00    -0.06       0.00     0.05
    18   0.2292      0.00    -0.14       0.00     0.17
    19   0.2347      0.00    -0.23       0.00     0.28
    20   0.2348      0.00    -0.26       0.00    -0.00
    21   0.2402      0.00    -0.12       0.00     0.18
    22   0.2457      0.00    -0.23       0.00     0.14
    23   0.2457      0.00    -0.27       0.00     0.22
    24   0.2511      0.00    -0.37       0.00     0.31
    25   3.2415      0.00    -0.03       0.00     0.09
    26   3.2416      0.00    -0.01       0.00     0.15
    27   3.2416      0.00    -0.06       0.00     0.09
    28  13.2619      0.00    -0.03       0.00    -0.14
    29  13.2621      0.00     0.08       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.

03WO193    quality flag:3

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

axisobj        39.826    39.827    39.826
ecceobj         0.250     0.250     0.250
incobj          6.629     6.629     6.629
qmin           28.851    28.850    28.851
qmax           50.566    50.560    50.571
amean          39.455    39.455    39.455
amin           39.025    39.024    39.027
amax           39.948    39.955    39.948
emean           0.250     0.250     0.250
emin            0.228     0.228     0.229
emax            0.267     0.267     0.267
imean           3.427     3.431     3.422
imin            1.949     1.951     1.946
imax            6.219     6.232     6.206
excite_mean     0.258     0.258     0.258
fracstop        1.000     1.000     1.000
cjmean          2.976     2.976     2.976

libcent 0       180.2     180.2     180.1
libamp  0        65.0      65.3      64.8
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       272.0     272.0     271.9
kozaiamp         77.0      77.0      77.0