Orbit Fit and Astrometric record for 03HE57

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: 03HE57    
# Created Thu Nov 15 02:08:15 2018
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   24 observations of   24
# Arc:  12.00y
# First observation: 2003/04/26
#  Last observation: 2015/04/26
# Chi-squared of fit:    17.93 DOF:   42 RMS:  0.15
# Min/Max residuals:    -0.33    0.38
# Exact a, adot, b, bdot, g, gdot:
  1.667082E-05  2.631989E-02 -1.205881E-06 -4.050121E-03  2.561362E-02  7.886798E-04
# Covariance matrix:
  1.7576E-13 -5.1549E-14 -4.8467E-15  5.7040E-15  6.1636E-14 -1.1314E-13
 -5.1549E-14  1.3392E-13  1.3215E-14 -2.1017E-14  2.4264E-13  4.2130E-13
 -4.8467E-15  1.3215E-14  1.3064E-13 -1.4400E-14  2.0863E-14  4.1968E-14
  5.7040E-15 -2.1017E-14 -1.4400E-14  5.6431E-15 -4.0898E-14 -6.7460E-14
  6.1636E-14  2.4264E-13  2.0863E-14 -4.0898E-14  9.6336E-13  8.2449E-13
 -1.1314E-13  4.2130E-13  4.1968E-14 -6.7460E-14  8.2449E-13  1.3527E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -1.517334 -160.879825   -0.291254   -0.025530   -0.963657  2452755.851233
# Heliocentric elements and errors
Epoch:              2452756.5000  =  2003/04/27
Mean Anomaly:           19.35601 +/-     0.032
Argument of Peri:      165.72720 +/-     0.040
Long of Asc Node:        9.97390 +/-     0.000
Inclination:             8.84894 +/-     0.000
Eccentricity:         0.10595782 +/-    0.0001
Semi-Major Axis:     44.37956828 +/-    0.0068
Time of Perihelion: 2446950.3762 +/-       9.6
Perihelion:          39.67720580 +/-    0.0073
Aphelion:            49.08193075 +/-    0.0085
Period (y)              295.6534 +/-      0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -37.69233726 +/-    0.0014
Ecliptic Y          -13.37095605 +/-    0.0005
Ecliptic Z           -1.03382603 +/-    0.0000
Ecliptic XDOT         0.00084656 +/-    0.0000
Ecliptic YDOT        -0.00268692 +/-    0.0000
Ecliptic ZDOT        -0.00043481 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.00701866 +/-    0.0013
Geocenter to KBO     39.04175439 +/-    0.0015
# Hcoef:  7.35

The following table shows the complete astrometric record for 03HE57. 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 (03HE57) followed by the observatory code and reference code for the source of the astrometry.

2003 04  26.35049  13 08 14.91   -08 53 24.6   22.6R 03HE57    568  Cq9883      
2003 04  26.39540  13 08 14.70   -08 53 23.5   22.7R 03HE57    568  Cq9883      
2003 04  26.43772  13 08 14.52   -08 53 22.3   22.7R 03HE57    568  Cq9883      
2003 04  27.40473  13 08 10.14   -08 52 57.1   22.4R 03HE57    568  Cq9883      
2003 05  30.31325  13 06 07.56   -08 41 03.8   23.5R 03HE57    568  Cq9883      
2003 05  30.36642  13 06 07.41   -08 41 02.9   23.0R 03HE57    568  Cq9883      
2003 05  30.42556  13 06 07.26   -08 41 02.0   23.8R 03HE57    568  Cq9883      
2004 04  15.30502  13 14 21.63   -09 45 04.4         03HE57    675  Cq9883      
2004 04  15.35399  13 14 21.38   -09 45 03.3         03HE57    675  Cq9883      
2004 04  15.39697  13 14 21.18   -09 45 02.1         03HE57    675  Cq9883      
2004 04  16.26482  13 14 17.01   -09 44 39.4         03HE57    675  Cq9883      
2005 07  09.19822  13 15 48.50   -10 09 05.9         03HE57    675  Cq9883      
2005 07  10.21920  13 15 49.10   -10 09 08.3         03HE57    675  Cq9883      
2007 07  11.96559  13 26 15.43   -11 39 48.7         03HE57    304  Cv1984      
2007 07  12.05699  13 26 15.47   -11 39 48.9         03HE57    304  Cv1984      
2014 04  30.03567  14 07 10.36   -17 03 45.0         03HE57    W84  C~2fbn      
2014 04  30.10463  14 07 10.02   -17 03 43.4   23.7V 03HE57    W84  C~2fbn      
2014 05  01.02299  14 07 05.50   -17 03 21.9         03HE57    W84  C~2fbn      
2014 05  01.09224  14 07 05.16   -17 03 20.1         03HE57    W84  C~2fbn      
2015 03  16.45102  14 16 03.56   -17 58 35.8   23.3R 03HE57    G37  C~1N5n      
2015 03  16.50511  14 16 03.38   -17 58 34.9         03HE57    G37  C~1N5n      
2015 04  25.15882  14 13 06.54   -17 46 55.1         03HE57    W84  C~2fbn      
2015 04  25.22769  14 13 06.19   -17 46 53.5   23.6V 03HE57    W84  C~2fbn      
2015 04  26.18890  14 13 01.42   -17 46 31.7         03HE57    W84  C~2fbn      

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    -0.18       0.00    -0.21
  2   0.0001      0.00    -0.21       0.00    -0.28
  3   0.0002      0.00     0.02       0.00    -0.17
  4   0.0029      0.00    -0.07       0.00     0.04
  5   0.0930      0.00    -0.01       0.00     0.10
  6   0.0931      0.00    -0.04       0.00     0.15
  7   0.0933      0.00     0.16       0.00     0.09
  8   0.9718      0.00     0.25       0.00     0.38
  9   0.9719      0.00     0.08       0.00     0.18
 10   0.9721      0.00     0.21       0.00     0.23
 11   0.9744      0.00    -0.29       0.00    -0.10
 12   2.2036      0.00    -0.02       0.00    -0.33
 13   2.2063      0.00     0.20       0.00    -0.09
 14   4.2098      0.00    -0.08       0.00     0.06
 15   4.2100      0.00    -0.03       0.00    -0.04
 16  11.0108      0.00    -0.10       0.00     0.07
 17  11.0110      0.00    -0.04       0.00     0.06
 18  11.0135      0.00    -0.13       0.00    -0.19
 19  11.0137      0.00    -0.06       0.00    -0.02
 20  11.8880      0.00     0.01       0.00    -0.16
 21  11.8882      0.00     0.21       0.00     0.15
 22  11.9967      0.00     0.03       0.00    -0.02
 23  11.9969      0.00    -0.01       0.00     0.03
 24  11.9996      0.00     0.02       0.00     0.08

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.

03HE57    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.942    43.942    43.942
ecceobj         0.097     0.097     0.097
incobj          8.888     8.888     8.888
qmin           38.855    38.855    38.855
qmax           50.037    50.041    50.023
amean          44.268    44.268    44.268
amin           43.913    43.913    43.911
amax           44.664    44.666    44.664
emean           0.104     0.104     0.104
emin            0.090     0.090     0.090
emax            0.120     0.120     0.120
imean           8.783     8.783     8.783
imin            8.055     8.055     8.056
imax            9.396     9.396     9.396
excite_mean     0.185     0.185     0.185
fracstop        1.000     1.000     1.000
cjmean          3.063     3.063     3.063

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       184.4     184.3     184.3
kozaiamp        180.0     180.0     180.0