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 Sat Dec  4 02:09:55 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     12 observations of     12
# Arc:  16.17y
# First observation: 2003/12/16
#  Last observation: 2020/02/18
# Chi-squared of fit:    18.71 DOF:     18 RMS:  0.22
# Min/Max residuals:    -0.54    0.48
# Exact a, adot, b, bdot, g, gdot:
  1.448706E-05  2.336323E-02  6.013351E-06  1.011421E-02  2.547916E-02  1.281641E-03
# Covariance matrix:
  2.9917E-13 -1.8366E-13  5.8390E-14 -7.7022E-14 -5.6078E-14 -4.4466E-13
 -1.8366E-13  2.4256E-13 -8.4581E-14  1.1142E-13 -7.3336E-14  6.5023E-13
  5.8390E-14 -8.4581E-14  1.9693E-13 -5.2541E-14  4.8853E-14 -2.3439E-13
 -7.7022E-14  1.1142E-13 -5.2541E-14  5.6116E-14 -6.3221E-14  3.0855E-13
 -5.6078E-14 -7.3336E-14  4.8853E-14 -6.3221E-14  1.1831E-12 -4.2063E-13
 -4.4466E-13  6.5023E-13 -2.3439E-13  3.0855E-13 -4.2063E-13  1.8105E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.343224   73.434138   -0.174382    0.005856   -0.966028  2452989.830363
# Heliocentric elements and errors
Epoch:              2452990.5000  =  2003/12/17
Mean Anomaly:           64.86439 +/-     0.113
Argument of Peri:      290.03459 +/-     0.127
Long of Asc Node:       72.91431 +/-     0.000
Inclination:            23.39885 +/-     0.000
Eccentricity:         0.05574045 +/-    0.0001
Semi-Major Axis:     41.08054105 +/-    0.0078
Time of Perihelion: 2435662.1794 +/-      30.6
Perihelion:          38.79069305 +/-    0.0082
Aphelion:            43.37038905 +/-    0.0090
Period (y)              263.3070 +/-      0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           11.29440736 +/-    0.0005
Ecliptic Y           38.59678794 +/-    0.0016
Ecliptic Z            0.23533365 +/-    0.0000
Ecliptic XDOT        -0.00237318 +/-    0.0000
Ecliptic YDOT         0.00083526 +/-    0.0000
Ecliptic ZDOT         0.00108778 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.21602277 +/-    0.0015
Geocenter to KBO     39.24777901 +/-    0.0017
# Hcoef:  8.01

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      
2020 02  18.136060 06 15 50.713  +32 35 16.66  24.5G 03YM179   G37  C~3iJH      
2020 02  18.194320 06 15 50.526  +32 35 16.15        03YM179   G37  C~3iJH      

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     0.05
     2   0.0001      0.00    -0.01       0.00    -0.15
     3   0.0001      0.00    -0.02       0.00     0.05
     4   0.0030      0.00     0.24       0.00     0.16
     5   0.9885      0.00    -0.21       0.00    -0.06
     6   0.9886      0.00    -0.12       0.00    -0.06
     7   0.9887      0.00    -0.26       0.00    -0.05
     8   1.8896      0.00     0.48       0.00     0.39
     9   1.8896      0.00    -0.31       0.00     0.18
    10   2.1190      0.00     0.24       0.00    -0.54
    11  16.1747      0.00     0.03       0.00     0.11
    12  16.1749      0.00    -0.01       0.00    -0.09

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        41.264    41.264    41.264
ecceobj         0.062     0.062     0.062
incobj         23.356    23.356    23.356
qmin           38.103    38.101    38.097
qmax           44.145    44.146    44.146
amean          41.015    41.015    41.015
amin           40.703    40.698    40.703
amax           41.332    41.343    41.329
emean           0.055     0.055     0.055
emin            0.044     0.044     0.044
emax            0.068     0.068     0.068
imean          21.818    21.818    21.818
imin           21.372    21.369    21.371
imax           22.353    22.354    22.354
excite_mean     0.376     0.376     0.376
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     177.6     177.6
kozaiamp        180.0     180.0     179.9