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 Fri Dec  3 02:09:35 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     19 observations of     19
# Arc:  16.03y
# First observation: 2003/04/26
#  Last observation: 2019/05/07
# Chi-squared of fit:   168.55 DOF:     32 RMS:  0.53
# Min/Max residuals:    -0.98    1.74
# Exact a, adot, b, bdot, g, gdot:
  1.615760E-05  3.319212E-02  6.179231E-06  1.736015E-02  3.150016E-02 -8.951094E-04
# Covariance matrix:
  2.1293E-13 -6.5633E-14  2.6101E-14 -2.6368E-14 -1.8583E-13 -8.5965E-14
 -6.5633E-14  4.4877E-14 -2.1384E-14  2.1366E-14  7.6710E-14  7.0002E-14
  2.6101E-14 -2.1384E-14  1.3890E-13 -2.1427E-14 -2.8152E-14 -3.5809E-14
 -2.6368E-14  2.1366E-14 -2.1427E-14  1.3255E-14  2.9978E-14  3.5674E-14
 -1.8583E-13  7.6710E-14 -2.8152E-14  2.9978E-14  6.9045E-13  9.5489E-14
 -8.5965E-14  7.0002E-14 -3.5809E-14  3.5674E-14  9.5489E-14  1.1703E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   -1.061058 -162.823577   -0.323478   -0.017662   -0.953494  2452755.832703
# Heliocentric elements and errors
Epoch:              2452756.5000  =  2003/04/27
Mean Anomaly:          356.60083 +/-     0.003
Argument of Peri:        2.68971 +/-     0.004
Long of Asc Node:      199.70477 +/-     0.000
Inclination:            27.61593 +/-     0.000
Eccentricity:         0.17430053 +/-    0.0001
Semi-Major Axis:     39.58326543 +/-    0.0052
Time of Perihelion: 2453615.3876 +/-      17.7
Perihelion:          32.68388123 +/-    0.0055
Aphelion:            46.48264963 +/-    0.0070
Period (y)              249.0437 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -31.14238108 +/-    0.0008
Ecliptic Y           -9.96033077 +/-    0.0003
Ecliptic Z           -0.58765048 +/-    0.0000
Ecliptic XDOT         0.00089341 +/-    0.0000
Ecliptic YDOT        -0.00274645 +/-    0.0000
Ecliptic ZDOT         0.00151024 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   32.70171122 +/-    0.0008
Geocenter to KBO     31.74592729 +/-    0.0008
# Hcoef:  8.17

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      
2019 05  06.429320 15 16 56.67   -03 26 55.1   23.7G 03HA57    705  C~39na      
2019 05  07.411900 15 16 51.17   -03 26 21.8   23.6G 03HA57    705  C~39na      

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     0.30       0.00     0.44
     2   0.0001      0.00     0.18       0.00     0.53
     3   0.0002      0.00     0.07       0.00     0.60
     4   0.2564      0.00     0.25       0.00     1.50
     5   0.2565      0.00     0.22       0.00     1.74
     6   0.9014      0.00    -0.37       0.00    -0.18
     7   0.9259      0.00    -0.52       0.00    -0.68
     8   0.9259      0.00    -0.26       0.00    -0.44
     9   0.9260      0.00    -0.12       0.00    -0.48
    10   0.9260      0.00     0.15       0.00    -0.34
    11   0.9261      0.00    -0.32       0.00    -0.52
    12   0.9261      0.00    -0.05       0.00    -0.38
    13   0.9746      0.00     0.24       0.00    -0.98
    14   2.2036      0.00    -0.00       0.00    -0.56
    15   2.2091      0.00     0.03       0.00    -0.36
    16  10.0504      0.00     0.15       0.00    -0.15
    17  10.0506      0.00     0.18       0.00     0.03
    18  16.0276      0.00    -0.36       0.00     0.01
    19  16.0303      0.00     0.16       0.00     0.40

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        39.222    39.221    39.222
ecceobj         0.167     0.167     0.167
incobj         27.707    27.707    27.707
qmin           32.297    32.297    32.296
qmax           47.008    47.008    47.009
amean          39.455    39.455    39.455
amin           39.107    39.107    39.107
amax           39.844    39.844    39.844
emean           0.142     0.142     0.142
emin            0.104     0.104     0.104
emax            0.182     0.182     0.182
imean          28.491    28.491    28.491
imin           27.678    27.678    27.678
imax           29.229    29.229    29.229
excite_mean     0.498     0.498     0.498
fracstop        1.000     1.000     1.000
cjmean          2.755     2.755     2.755

libcent 0       179.7     179.7     179.7
libamp  0        67.1      67.1      67.2
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     185.9     186.0
kozaiamp        180.0     180.0     180.0