Orbit Fit and Astrometric record for 03YM179

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: 03YM179   
# Created Tue Oct 17 01:37:27 2017
# Orbit generated from Bernstein formalism
# Fitting   10 observations of   10
# Arc:   2.12y
# First observation: 2003/12/16
#  Last observation: 2006/01/28
Preliminary a, adot, b, bdot, g, gdot:
   0.000037   0.023202   0.000019   0.010043   0.025543   0.000000
# Chi-squared of fit:    14.33 DOF:   14 RMS:  0.21
# Min/Max residuals:    -0.57    0.39
# Exact a, adot, b, bdot, g, gdot:
  1.464476E-05  2.336153E-02  6.258337E-06  1.011323E-02  2.547725E-02  1.239689E-03
# Covariance matrix:
  3.5717E-13 -4.7338E-13  1.6480E-14 -1.2247E-13 -2.8994E-13 -6.2722E-12
 -4.7338E-13  2.3020E-12 -1.2179E-13  9.0592E-13  1.9390E-12  4.6423E-11
  1.6480E-14 -1.2179E-13  3.2643E-13 -2.4812E-13 -1.2204E-13 -2.7328E-12
 -1.2247E-13  9.0592E-13 -2.4812E-13  6.1752E-13  9.0233E-13  2.0318E-11
 -2.8994E-13  1.9390E-12 -1.2204E-13  9.0233E-13  3.2897E-12  4.6050E-11
 -6.2722E-12  4.6423E-11 -2.7328E-12  2.0318E-11  4.6050E-11  1.0408E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.343224   73.434138   -0.174381    0.005856   -0.966029  2452989.830363
# Heliocentric elements and errors
Epoch:              2452980.5000  =  2003/12/07
Mean Anomaly:           64.35150 +/-     0.393
Argument of Peri:      290.69891 +/-     0.535
Long of Asc Node:       72.91424 +/-     0.000
Inclination:            23.39816 +/-     0.001
Eccentricity:         0.05419520 +/-    0.0012
Semi-Major Axis:     41.07994073 +/-    0.0079
Time of Perihelion: 2435789.5735 +/-     104.8
Perihelion:          38.85360530 +/-    0.0495
Aphelion:            43.30627617 +/-    0.0496
Period (y)              263.3012 +/-      0.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           11.29523894 +/-    0.0008
Ecliptic Y           38.59960536 +/-    0.0027
Ecliptic Z            0.23536088 +/-    0.0000
Ecliptic XDOT        -0.00237447 +/-    0.0000
Ecliptic YDOT         0.00083096 +/-    0.0000
Ecliptic ZDOT         0.00108773 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.21899242 +/-    0.0026
Geocenter to KBO     39.25070446 +/-    0.0028
# Hcoef:  8.16

The following table shows the complete astrometric record for 03YM179. 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 (03YM179) followed by the observatory code and reference code for the source of the astrometry.

2003 12  16.32962  04 47 57.77   +22 45 10.0   24.1g 03YM179   568  Cq9907      
2003 12  16.35608  04 47 57.62   +22 45 09.7   24.0g 03YM179   568  Cq9907      
2003 12  16.38238  04 47 57.47   +22 45 09.8   24.1g 03YM179   568  Cq9907      
2003 12  17.43422  04 47 51.63   +22 45 05.8         03YM179   568  Cq9907      
2004 12  11.37788  04 53 50.17   +23 29 23.1   24.2r 03YM179   568  Cq9907      
2004 12  11.40659  04 53 50.01   +23 29 23.0   24.0r 03YM179   568  Cq9907      
2004 12  11.43951  04 53 49.81   +23 29 22.9   24.1r 03YM179   568  Cq9907      
2005 11  05.49331  05 02 36.62   +24 13 14.7         03YM179   695  Cq9907      
2005 11  05.52048  05 02 36.44   +24 13 14.5         03YM179   695  Cq9907      
2006 01  28.28290  04 55 34.12   +24 10 30.6         03YM179   675  Cq9907      

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     0.00
  2   0.0001     -2.10    -0.06      -0.04    -0.20
  3   0.0001     -4.14    -0.04       0.31     0.00
  4   0.0030    -84.80     0.20       6.28     0.08
  5   0.9885   5141.71    -0.06    2061.32     0.03
  6   0.9886   5139.51     0.02    2061.47     0.01
  7   0.9887   5136.77    -0.10    2061.68     0.04
  8   1.8896  12616.84     0.39    3921.90     0.37
  9   1.8896  12614.36    -0.35    3921.94     0.23
 10   2.1190   6836.25     0.03    4356.46    -0.57

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.

03YM179    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        41.261    41.285    41.236
ecceobj         0.060     0.061     0.059
incobj         23.356    23.356    23.356
qmin           38.174    38.074    38.175
qmax           44.028    44.167    44.033
amean          41.011    41.035    40.979
amin           40.701    40.725    40.668
amax           41.334    41.359    41.303
emean           0.054     0.055     0.053
emin            0.042     0.044     0.041
emax            0.066     0.068     0.066
imean          21.817    21.819    21.813
imin           21.368    21.375    21.356
imax           22.350    22.352    22.326
excite_mean     0.376     0.376     0.375
fracstop        1.000     1.000     1.000
cjmean          2.899     2.899     2.899

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       177.3     177.0     177.7
kozaiamp        180.0     180.0     180.0