Orbit Fit and Astrometric record for 03YR179

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: 03YR179   
# Created Mon Dec 11 02:37:22 2017
# Orbit generated from Bernstein formalism
# Fitting   14 observations of   14
# Arc:   9.22y
# First observation: 2003/12/24
#  Last observation: 2013/03/12
Preliminary a, adot, b, bdot, g, gdot:
  -0.000150   0.024566  -0.000026   0.004241   0.024319   0.000000
# Chi-squared of fit:     2.19 DOF:   22 RMS:  0.07
# Min/Max residuals:    -0.13    0.15
# Exact a, adot, b, bdot, g, gdot:
  1.562312E-05  2.445161E-02  3.190407E-06  4.204873E-03  2.476675E-02 -2.778620E-04
# Covariance matrix:
  3.1937E-13 -1.4769E-13  1.8281E-14 -2.8123E-14  2.0416E-13 -7.1552E-13
 -1.4769E-13  2.7005E-13 -3.0478E-14  4.8821E-14  1.1462E-13  1.2142E-12
  1.8281E-14 -3.0478E-14  1.5688E-13 -2.9094E-14 -4.6574E-15 -1.4743E-13
 -2.8123E-14  4.8821E-14 -2.9094E-14  2.0568E-14  1.0288E-14  2.3472E-13
  2.0416E-13  1.1462E-13 -4.6574E-15  1.0288E-14  6.8294E-13  2.1666E-13
 -7.1552E-13  1.2142E-12 -1.4743E-13  2.3472E-13  2.1666E-13  5.8575E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.081768  110.972373    0.319259    0.017574   -0.927051  2452997.964183
# Heliocentric elements and errors
Epoch:              2452990.5000  =  2003/12/17
Mean Anomaly:          340.83493 +/-     0.097
Argument of Peri:       27.72752 +/-     0.110
Long of Asc Node:      104.40241 +/-     0.000
Inclination:             9.80607 +/-     0.000
Eccentricity:         0.05866140 +/-    0.0001
Semi-Major Axis:     43.71384174 +/-    0.0060
Time of Perihelion: 2458610.4792 +/-      28.5
Perihelion:          41.14952642 +/-    0.0069
Aphelion:            46.27815705 +/-    0.0075
Period (y)              289.0258 +/-      0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -14.48670617 +/-    0.0005
Ecliptic Y           38.67788327 +/-    0.0013
Ecliptic Z            0.76240331 +/-    0.0000
Ecliptic XDOT        -0.00251406 +/-    0.0000
Ecliptic YDOT        -0.00101065 +/-    0.0000
Ecliptic ZDOT         0.00046432 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.30889213 +/-    0.0012
Geocenter to KBO     40.37671358 +/-    0.0013
# Hcoef:  7.32

The following table shows the complete astrometric record for 03YR179. 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 (03YR179) followed by the observatory code and reference code for the source of the astrometry.

2003 12  24.46344  07 31 25.08   +22 52 20.8   23.7g 03YR179   568  Cq9908      
2003 12  24.48664  07 31 24.96   +22 52 21.1   23.4g 03YR179   568  Cq9908      
2003 12  24.50988  07 31 24.85   +22 52 21.5   23.5g 03YR179   568  Cq9908      
2003 12  25.50403  07 31 19.82   +22 52 35.4   23.0g 03YR179   568  Cq9908      
2004 04  15.20143  07 25 25.72   +23 07 38.9         03YR179   675  Cq9908      
2004 04  15.24333  07 25 25.79   +23 07 39.0         03YR179   675  Cq9908      
2005 01  08.35280  07 36 14.78   +22 57 01.2   23.6r 03YR179   568  Cq9908      
2005 01  08.39064  07 36 14.57   +22 57 01.8   23.4r 03YR179   568  Cq9908      
2005 01  08.42845  07 36 14.36   +22 57 02.3   23.4r 03YR179   568  Cq9908      
2006 01  29.29718  07 40 36.61   +23 02 17.4         03YR179   675  Cq9908      
2006 01  29.30359  07 40 36.56   +23 02 17.4         03YR179   675  Cq9908      
2006 01  29.38287  07 40 36.15   +23 02 18.6         03YR179   675  Cq9908      
2013 03  12.13013  08 20 49.87   +22 50 23.7   22.9R 03YR179   G37  C~0qSV      
2013 03  12.27026  08 20 49.42   +22 50 25.0         03YR179   G37  C~0qSV      

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    -0.10
  2   0.0001     -1.68    -0.01       0.04    -0.13
  3   0.0001     -3.25     0.10       0.20    -0.03
  4   0.0028    -74.08    -0.02       3.20     0.08
  5   0.3087  -5044.36    -0.04     166.09    -0.09
  6   0.3088  -5043.42     0.04     166.33     0.14
  7   1.0428   3908.05     0.02     911.66     0.05
  8   1.0429   3905.09    -0.04     911.79     0.08
  9   1.0430   3902.15    -0.08     911.81     0.01
 10   2.0995   7423.42     0.15    1825.38     0.04
 11   2.0995   7422.74    -0.06    1825.26    -0.08
 12   2.0997   7416.95    -0.04    1825.48     0.04
 13   9.2147  40734.30    -0.01    8016.11    -0.05
 14   9.2151  40727.69     0.02    8015.87     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.

03YR179    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.592    43.610    43.574
ecceobj         0.054     0.055     0.054
incobj          9.813     9.813     9.813
qmin           40.126    40.115    40.125
qmax           47.085    47.056    47.049
amean          43.483    43.501    43.465
amin           43.153    43.157    43.127
amax           43.837    43.852    43.825
emean           0.058     0.058     0.058
emin            0.042     0.043     0.042
emax            0.074     0.074     0.074
imean           8.194     8.193     8.195
imin            7.498     7.505     7.513
imax            8.913     8.906     8.913
excite_mean     0.154     0.154     0.154
fracstop        1.000     1.000     1.000
cjmean          3.067     3.067     3.067

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       180.1     180.5     180.0
kozaiamp        179.9     180.0     179.9