Orbit Fit and Astrometric record for 03YP179

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: 03YP179   
# Created Thu Oct 19 01:37:27 2017
# Orbit generated from Bernstein formalism
# Fitting   16 observations of   16
# Arc:   9.22y
# First observation: 2003/12/24
#  Last observation: 2013/03/12
Preliminary a, adot, b, bdot, g, gdot:
   0.000069   0.024699   0.000001   0.000294   0.024273   0.000000
# Chi-squared of fit:    12.81 DOF:   26 RMS:  0.16
# Min/Max residuals:    -0.26    0.36
# Exact a, adot, b, bdot, g, gdot:
  1.538826E-05  2.495420E-02  2.475515E-07  2.963989E-04  2.478272E-02  1.450913E-03
# Covariance matrix:
  3.1991E-13 -1.4215E-13  1.6582E-15 -1.7452E-15  2.0750E-13 -6.8535E-13
 -1.4215E-13  2.2506E-13 -1.6572E-15  2.7200E-15  6.0890E-14  1.0222E-12
  1.6582E-15 -1.6572E-15  1.3522E-13 -2.1845E-14  1.0275E-15 -8.6049E-15
 -1.7452E-15  2.7200E-15 -2.1845E-14  1.1260E-14  3.3113E-16  1.3204E-14
  2.0750E-13  6.0890E-14  1.0275E-15  3.3113E-16  5.1690E-13  6.3443E-14
 -6.8535E-13  1.0222E-12 -8.6049E-15  1.3204E-14  6.3443E-14  4.9899E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.670292  110.289470    0.308256    0.010960   -0.930869  2452997.959983
# Heliocentric elements and errors
Epoch:              2452990.5000  =  2003/12/17
Mean Anomaly:           32.58329 +/-     0.040
Argument of Peri:        5.26549 +/-     0.050
Long of Asc Node:       66.29953 +/-     0.011
Inclination:             0.95049 +/-     0.000
Eccentricity:         0.08423461 +/-    0.0001
Semi-Major Axis:     44.33021405 +/-    0.0058
Time of Perihelion: 2443232.9552 +/-      11.9
Perihelion:          40.59607556 +/-    0.0073
Aphelion:            48.06435254 +/-    0.0080
Period (y)              295.1603 +/-      0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -14.02883893 +/-    0.0004
Ecliptic Y           38.82718297 +/-    0.0011
Ecliptic Z            0.47204476 +/-    0.0000
Ecliptic XDOT        -0.00264543 +/-    0.0000
Ecliptic YDOT        -0.00081230 +/-    0.0000
Ecliptic ZDOT         0.00003477 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.28657512 +/-    0.0010
Geocenter to KBO     40.35068851 +/-    0.0012
# Hcoef:  7.52

The following table shows the complete astrometric record for 03YP179. 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 (03YP179) followed by the observatory code and reference code for the source of the astrometry.

2003 12  24.45924  07 28 13.21   +22 34 10.2   23.8g 03YP179   568  Cq9908      
2003 12  24.48237  07 28 13.08   +22 34 10.5   23.8g 03YP179   568  Cq9908      
2003 12  24.50560  07 28 12.97   +22 34 10.8   23.6g 03YP179   568  Cq9908      
2003 12  25.49901  07 28 07.92   +22 34 22.0   23.9g 03YP179   568  Cq9908      
2004 04  15.17628  07 22 18.76   +22 45 24.6         03YP179   675  Cq9908      
2004 04  15.22775  07 22 18.84   +22 45 24.8         03YP179   675  Cq9908      
2004 04  16.21143  07 22 20.42   +22 45 20.9         03YP179   675  Cq9908      
2005 01  08.34713  07 32 59.45   +22 25 02.4   23.6r 03YP179   568  Cq9908      
2005 01  08.38499  07 32 59.26   +22 25 02.7   23.8r 03YP179   568  Cq9908      
2005 01  08.42277  07 32 59.05   +22 25 03.3   23.4r 03YP179   568  Cq9908      
2006 01  29.31039  07 37 16.35   +22 16 24.1         03YP179   675  Cq9908      
2006 01  29.31675  07 37 16.29   +22 16 24.4         03YP179   675  Cq9908      
2006 01  29.39905  07 37 15.88   +22 16 25.2         03YP179   675  Cq9908      
2006 01  29.40634  07 37 15.85   +22 16 25.2   23. R 03YP179   675  Cq9908      
2013 03  12.12761  08 15 53.81   +20 35 55.5   23.0R 03YP179   G37  C~0qSV      
2013 03  12.26778  08 15 53.37   +20 35 56.7         03YP179   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     0.11       0.00    -0.01
  2   0.0001     -1.83    -0.04       0.03     0.01
  3   0.0001     -3.38     0.08       0.10     0.07
  4   0.0028    -74.21    -0.01       0.73     0.22
  5   0.3086  -4953.11     0.14     -41.48    -0.06
  6   0.3087  -4952.04     0.10     -41.13     0.36
  7   0.3114  -4929.84    -0.26     -41.94     0.34
  8   1.0428   4004.54    -0.23      66.88    -0.13
  9   1.0429   4001.88     0.02      66.76    -0.26
 10   1.0430   3998.91    -0.07      66.90    -0.13
 11   2.0995   7608.57     0.21     128.32    -0.20
 12   2.0995   7607.70    -0.20     128.48    -0.04
 13   2.0998   7601.95     0.02     128.34    -0.14
 14   2.0998   7601.54     0.13     128.27    -0.20
 15   9.2147  41039.23     0.05     532.83     0.11
 16   9.2151  41032.69    -0.06     532.61     0.06

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.

03YP179    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.244    44.262    44.227
ecceobj         0.086     0.086     0.085
incobj          0.948     0.948     0.948
qmin           39.281    39.253    39.262
qmax           49.212    49.190    49.141
amean          44.096    44.120    44.086
amin           43.736    43.761    43.734
amax           44.492    44.505    44.471
emean           0.089     0.090     0.089
emin            0.071     0.073     0.073
emax            0.106     0.106     0.106
imean           0.960     0.958     0.962
imin            0.066     0.074     0.066
imax            1.629     1.627     1.632
excite_mean     0.091     0.092     0.091
fracstop        1.000     1.000     1.000
cjmean          3.092     3.093     3.092

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       188.6     189.1     188.6
kozaiamp        180.0     180.0     180.0