Orbit Fit and Astrometric record for 03HA57

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: 03HA57    
# Created Mon Oct 23 01:37:23 2017
# Orbit generated from Bernstein formalism
# Fitting   15 observations of   17
# Arc:  10.05y
# First observation: 2003/04/26
#  Last observation: 2013/05/14
Preliminary a, adot, b, bdot, g, gdot:
  -0.001922   0.034825  -0.000856   0.018212   0.033653   0.000000
# Chi-squared of fit:    53.92 DOF:   24 RMS:  0.34
# Min/Max residuals:    -0.57    0.73
# Exact a, adot, b, bdot, g, gdot:
  1.746472E-05  3.319090E-02  5.444431E-06  1.735958E-02  3.149870E-02 -8.986880E-04
# Covariance matrix:
  4.1276E-13 -3.0746E-13  1.0856E-13 -1.4561E-13 -3.0864E-13 -7.5122E-13
 -3.0746E-13  3.4045E-13 -1.2863E-13  1.7212E-13  2.2196E-13  8.8973E-13
  1.0856E-13 -1.2863E-13  1.9198E-13 -8.7119E-14 -7.0244E-14 -3.4779E-13
 -1.4561E-13  1.7212E-13 -8.7119E-14  9.8672E-14  9.5828E-14  4.6505E-13
 -3.0864E-13  2.2196E-13 -7.0244E-14  9.5828E-14  7.6984E-13  4.8742E-13
 -7.5122E-13  8.8973E-13 -3.4779E-13  4.6505E-13  4.8742E-13  2.4054E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -1.061058 -162.823577   -0.323477   -0.017662   -0.953493  2452755.832703
# Heliocentric elements and errors
Epoch:              2452750.5000  =  2003/04/21
Mean Anomaly:          356.55353 +/-     0.011
Argument of Peri:        2.72459 +/-     0.016
Long of Asc Node:      199.70489 +/-     0.000
Inclination:            27.61600 +/-     0.000
Eccentricity:         0.17438900 +/-    0.0001
Semi-Major Axis:     39.58896864 +/-    0.0052
Time of Perihelion: 2453621.5263 +/-       2.8
Perihelion:          32.68508783 +/-    0.0055
Aphelion:            46.49284945 +/-    0.0070
Period (y)              249.0976 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -31.14377202 +/-    0.0008
Ecliptic Y           -9.96080417 +/-    0.0003
Ecliptic Z           -0.58770100 +/-    0.0000
Ecliptic XDOT         0.00089372 +/-    0.0000
Ecliptic YDOT        -0.00274638 +/-    0.0000
Ecliptic ZDOT         0.00151026 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   32.70317336 +/-    0.0008
Geocenter to KBO     31.74734398 +/-    0.0009
# Hcoef:  8.06

The following table shows the complete astrometric record for 03HA57. 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 (03HA57) followed by the observatory code and reference code for the source of the astrometry.

2003 04  26.33196  13 01 41.59   -07 43 34.3   22.8R 03HA57    568  Cq9883      
2003 04  26.37420  13 01 41.36   -07 43 32.4   22.6R 03HA57    568  Cq9883      
2003 04  26.41661  13 01 41.13   -07 43 30.5   22.4R 03HA57    568  Cq9883      
2003 07  28.98844  12 59 42.71   -07 12 41.8         03HA57    809  Cq9883      
2003 07  29.02059  12 59 42.82   -07 12 41.9         03HA57    809  Cq9883      
2004 03  20.58286  13 13 35.13   -07 58 03.3         03HA57    568  Cq9883      
2004 03  29.53252  13 12 47.79   -07 51 42.8         03HA57    568  Cq9883      
2004 03  29.53393  13 12 47.80   -07 51 42.5   23.1R 03HA57    568  Cq9883      
2004 03  29.55557  13 12 47.69   -07 51 41.6   22.7R 03HA57    568  Cq9883      
2004 03  29.55699  13 12 47.70   -07 51 41.4   23.2R 03HA57    568  Cq9883      
2004 03  29.58401  13 12 47.52   -07 51 40.4   22.8R 03HA57    568  Cq9883      
2004 03  29.58543  13 12 47.53   -07 51 40.2   22.8R 03HA57    568  Cq9883      
2004 04  16.30605  13 11 09.99   -07 38 40.2         03HA57    675  Cq9883      
2005 07  09.19435  13 15 40.03   -06 48 36.2         03HA57    675  Cq9883      
2005 07  11.19723  13 15 42.23   -06 48 33.1         03HA57    675  Cq9883      
2013 05  14.24302  14 25 54.23   -05 08 59.5   23.1R 03HA57    G37  C~0sni      
2013 05  14.30905  14 25 53.87   -05 08 57.2         03HA57    G37  C~0sni      

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    -0.17       0.00     0.67
  2   0.0001     -3.89    -0.31       0.44     0.71
  3   0.0002     -7.77    -0.44       0.89     0.73
  4   0.2564  -2344.04 (  -0.73)   1031.48 (   1.66)
  5   0.2565  -2342.49 (  -0.85)   1032.02 (   1.86)
  6   0.9014  10145.80    -0.18    3230.99    -0.06
  7   0.9259   9349.05    -0.17    3317.91    -0.57
  8   0.9259   9349.08    -0.01    3318.24    -0.25
  9   0.9260   9347.22     0.13    3318.46    -0.24
 10   0.9260   9347.28     0.32    3318.70    -0.01
 11   0.9261   9344.42    -0.04    3318.61    -0.35
 12   0.9261   9344.48     0.15    3318.85    -0.12
 13   0.9746   7704.53     0.57    3492.75    -0.56
 14   2.2036  10300.77     0.16    7800.13    -0.19
 15   2.2091  10330.07     0.12    7815.41     0.01
 16  10.0504  69985.92    -0.05   37682.99     0.02
 17  10.0506  69979.32    -0.08   37683.14     0.21

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.

03HA57    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.229    39.244    39.213
ecceobj         0.167     0.167     0.167
incobj         27.706    27.706    27.706
qmin           32.264    32.319    32.326
qmax           46.884    46.874    47.067
amean          39.455    39.455    39.455
amin           39.100    39.080    39.105
amax           39.865    39.844    39.851
emean           0.142     0.141     0.142
emin            0.104     0.103     0.104
emax            0.180     0.179     0.183
imean          28.506    28.560    28.481
imin           27.680    27.686    27.649
imax           29.252    29.266    29.219
excite_mean     0.498     0.499     0.498
fracstop        1.000     1.000     1.000
cjmean          2.755     2.754     2.755

libcent 0       181.1     180.3     179.6
libamp  0        70.0      74.3      66.5
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       186.0     186.2     185.8
kozaiamp        180.0     180.0     180.0