Orbit Fit and Astrometric record for 03HB57

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: 03HB57    
# Created Fri Oct 20 01:37:25 2017
# Orbit generated from Bernstein formalism
# Fitting   21 observations of   21
# Arc:  13.12y
# First observation: 2003/04/26
#  Last observation: 2016/06/08
Preliminary a, adot, b, bdot, g, gdot:
  -0.002734   0.037151  -0.000912   0.010333   0.028975   0.000000
# Chi-squared of fit:    22.37 DOF:   36 RMS:  0.18
# Min/Max residuals:    -0.34    0.40
# Exact a, adot, b, bdot, g, gdot:
  2.017399E-05  3.440366E-02  5.204841E-06  9.546336E-03  2.667173E-02 -3.466882E-03
# Covariance matrix:
  1.5986E-13 -6.3022E-14  1.4439E-14 -1.5615E-14  5.4353E-14 -1.1500E-13
 -6.3022E-14  6.6589E-14 -1.6169E-14  1.7822E-14  4.0289E-14  1.2789E-13
  1.4439E-14 -1.6169E-14  1.0778E-13 -1.5209E-14 -3.0115E-15 -3.3371E-14
 -1.5615E-14  1.7822E-14 -1.5209E-14  8.2319E-15  5.3471E-15  3.6569E-14
  5.4353E-14  4.0289E-14 -3.0115E-15  5.3471E-15  6.1886E-13  1.8444E-14
 -1.1500E-13  1.2789E-13 -3.3371E-14  3.6569E-14  1.8444E-14  2.6452E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.242849 -163.481508   -0.334450   -0.004028   -0.949857  2452755.835333
# Heliocentric elements and errors
Epoch:              2452750.5000  =  2003/04/21
Mean Anomaly:          359.01656 +/-     0.001
Argument of Peri:       10.54017 +/-     0.002
Long of Asc Node:      197.86444 +/-     0.000
Inclination:            15.49159 +/-     0.000
Eccentricity:         0.76568621 +/-    0.0001
Semi-Major Axis:    162.66477124 +/-    0.1088
Time of Perihelion: 2454820.5629 +/-       0.4
Perihelion:          38.11459867 +/-    0.0353
Aphelion:           287.21494380 +/-    0.1937
Period (y)             2074.6673 +/-      2.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -36.76263888 +/-    0.0011
Ecliptic Y          -11.24724004 +/-    0.0003
Ecliptic Z           -0.15869790 +/-    0.0000
Ecliptic XDOT         0.00133514 +/-    0.0000
Ecliptic YDOT        -0.00329070 +/-    0.0000
Ecliptic ZDOT         0.00098162 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   38.44498941 +/-    0.0010
Geocenter to KBO     37.49288486 +/-    0.0011
# Hcoef:  7.42

The following table shows the complete astrometric record for 03HB57. 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 (03HB57) followed by the observatory code and reference code for the source of the astrometry.

2003 04  26.33459  13 00 30.58   -06 43 05.4   23.1R 03HB57    568  Cq9883      
2003 04  26.37682  13 00 30.40   -06 43 04.0   22.6R 03HB57    568  Cq9883      
2003 04  26.41922  13 00 30.21   -06 43 02.7   23.0R 03HB57    568  Cq9883      
2003 04  27.38616  13 00 26.17   -06 42 31.9   22.7R 03HB57    568  Cq9883      
2003 05  30.28314  12 58 37.80   -06 28 00.5   24.0R 03HB57    568  Cq9883      
2003 05  30.33633  12 58 37.67   -06 27 59.6         03HB57    568  Cq9883      
2003 05  30.38312  12 58 37.56   -06 27 58.5   22.7R 03HB57    568  Cq9883      
2004 03  20.57450  13 11 23.42   -07 17 50.1         03HB57    568  Cq9883      
2004 04  15.36368  13 09 28.56   -07 03 36.8         03HB57    675  Cq9883      
2004 04  16.28554  13 09 24.42   -07 03 06.4         03HB57    675  Cq9883      
2004 04  16.35769  13 09 24.10   -07 03 03.8         03HB57    675  Cq9883      
2004 04  16.40518  13 09 23.87   -07 03 02.4         03HB57    675  Cq9883      
2005 07  08.28477  13 14 23.45   -06 51 03.6   22.5r 03HB57    568  Cq9883      
2005 08  02.00975  13 15 15.31   -06 54 36.4         03HB57    309  Cq9883      
2005 08  02.01354  13 15 15.34   -06 54 36.5         03HB57    309  Cq9883      
2005 08  03.00953  13 15 18.62   -06 54 51.5         03HB57    309  Cq9883      
2008 05  03.28039  13 41 29.50   -07 49 01.9         03HB57    695  Cz0402      
2008 05  03.32634  13 41 29.29   -07 49 00.5         03HB57    695  Cz0402      
2016 06  08.19398  14 45 37.669  -08 54 26.96  23.3R 03HB57    G37              
2016 06  08.22903  14 45 37.530  -08 54 26.48        03HB57    G37              
2016 06  08.25155  14 45 37.445  -08 54 26.13        03HB57    G37              

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     0.05       0.00     0.09
  2   0.0001     -3.01     0.04       0.26     0.15
  3   0.0002     -6.13    -0.06       0.38     0.05
  4   0.0029    -73.52    -0.20       5.70     0.02
  5   0.0929  -1899.30     0.03     189.32     0.38
  6   0.0931  -1901.43    -0.03     189.40     0.20
  7   0.0932  -1903.37    -0.14     189.79     0.34
  8   0.9014   9787.47    -0.29    1780.79    -0.30
  9   0.9720   7878.62     0.12    1922.04    -0.03
 10   0.9745   7809.96     0.16    1926.75    -0.30
 11   0.9747   7804.56     0.21    1927.35    -0.06
 12   0.9749   7800.85     0.09    1927.34    -0.30
 13   2.2011  11667.52     0.24    4285.78    -0.08
 14   2.2688  12466.00    -0.28    4380.67    -0.34
 15   2.2688  12466.45    -0.02    4380.75    -0.28
 16   2.2715  12517.55     0.05    4385.30     0.40
 17   5.0211  35793.79     0.08   10112.59    -0.05
 18   5.0212  35790.26    -0.01   10112.75    -0.04
 19  13.1194  97205.85     0.08   27949.31     0.12
 20  13.1195  97203.25    -0.05   27948.99     0.01
 21  13.1196  97201.65    -0.08   27948.86     0.00

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.

03HB57    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj       155.753   156.049   155.458
ecceobj         0.755     0.756     0.755
incobj         15.538    15.538    15.538
qmin           35.968    35.940    35.877
qmax          300.410   308.346   308.340
amean         159.836   161.923   163.370
amin          155.125   156.049   155.458
amax          168.958   173.080   172.946
emean           0.764     0.767     0.769
emin            0.752     0.752     0.752
emax            0.778     0.782     0.783
imean          14.607    14.451    14.415
imin           13.910    13.700    13.665
imax           15.818    15.824    15.831
excite_mean     0.804     0.807     0.809
fracstop        1.000     1.000     1.000
cjmean          3.066     3.067     3.066

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        60.7      65.5      67.8
kozaiamp         49.7      53.9      58.0