Orbit Fit and Astrometric record for 03HM57

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: 03HM57    
# Created Thu Oct 18 01:08:12 2018
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   99 observations of   99
# Arc:  14.24y
# First observation: 2003/04/26
#  Last observation: 2017/07/21
# Chi-squared of fit:    54.57 DOF:  192 RMS:  0.13
# Min/Max residuals:    -0.38    0.42
# Exact a, adot, b, bdot, g, gdot:
  1.625367E-05  3.354213E-02 -4.172975E-06 -6.455735E-03  3.449974E-02 -2.919092E-02
# Covariance matrix:
  1.8248E-13 -1.8525E-14 -1.0754E-14  1.5211E-15 -1.2323E-14 -5.2301E-15
 -1.8525E-14  2.0539E-15  1.4879E-15 -2.1054E-16  1.6574E-15  7.2574E-16
 -1.0754E-14  1.4879E-15  1.1390E-13 -9.0467E-15  1.8228E-15  8.0427E-16
  1.5211E-15 -2.1054E-16 -9.0467E-15  7.4329E-16 -2.5012E-16 -1.1416E-16
 -1.2323E-14  1.6574E-15  1.8228E-15 -2.5012E-16  6.3934E-15  6.9585E-16
 -5.2301E-15  7.2574E-16  8.0427E-16 -1.1416E-16  6.9585E-16  4.0116E-16
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.585706 -163.294982   -0.331356   -0.009723   -0.950899  2452755.835333
# Heliocentric elements and errors
Epoch:              2452756.5000  =  2003/04/27
Mean Anomaly:          330.03344 +/-     0.000
Argument of Peri:      293.95948 +/-     0.000
Long of Asc Node:       14.34798 +/-     0.000
Inclination:            10.77140 +/-     0.000
Eccentricity:         0.67624577 +/-    0.0000
Semi-Major Axis:     41.84518708 +/-    0.0000
Time of Perihelion: 2460986.5251 +/-       0.1
Perihelion:          13.54755652 +/-    0.0000
Aphelion:            70.14281764 +/-    0.0000
Period (y)              270.6927 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -28.57855910 +/-    0.0000
Ecliptic Y           -8.91825410 +/-    0.0000
Ecliptic Z           -0.29640202 +/-    0.0000
Ecliptic XDOT         0.00298266 +/-    0.0000
Ecliptic YDOT        -0.00188709 +/-    0.0000
Ecliptic ZDOT        -0.00048842 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   29.93960431 +/-    0.0000
Geocenter to KBO     28.98614998 +/-    0.0000
# Hcoef:  8.50

The following table shows the complete astrometric record for 03HM57. 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 (03HM57) followed by the observatory code and reference code for the source of the astrometry.

2003 04  26.33459  13 00 40.39   -07 06 22.9   22.9R 03HM57    568  Cq9883      
2003 04  26.37682  13 00 40.13   -07 06 21.6   23.0R 03HM57    568  Cq9883      
2003 04  26.41922  13 00 39.86   -07 06 20.2   22.9R 03HM57    568  Cq9883      
2003 04  27.38616  13 00 34.03   -07 05 47.6   22.9R 03HM57    568  Cq9883      
2003 05  30.28314  12 57 52.16   -06 50 47.3   23.1R 03HM57    568  Cq9883      
2003 05  30.33633  12 57 51.98   -06 50 46.3   23.5R 03HM57    568  Cq9883      
2003 05  30.38312  12 57 51.81   -06 50 45.4   23.0R 03HM57    568  Cq9883      
2011 04  14.50352  14 14 11.770  -18 04 48.93  22.2G 03HM57    F51  C~2kHm      
2012 04  15.42766  14 27 05.471  -19 46 46.57  21.6w 03HM57    F51  C~1vVF      
2012 04  15.44159  14 27 05.345  -19 46 46.20  21.7w 03HM57    F51  C~1vVF      
2012 04  15.45544  14 27 05.226  -19 46 45.80  21.6w 03HM57    F51  C~1vVF      
2012 04  15.46937  14 27 05.097  -19 46 45.36  21.7G 03HM57    F51  C~2kHm      
2013 04  12.49637  14 42 08.854  -21 35 49.33  21.7w 03HM57    F51  C~1vVF      
2013 04  12.51023  14 42 08.725  -21 35 49.30  21.6w 03HM57    F51  C~1vVF      
2013 04  12.52411  14 42 08.620  -21 35 48.77  21.8w 03HM57    F51  C~1vVF      
2013 04  12.53795  14 42 08.489  -21 35 48.36  21.6w 03HM57    F51  C~1vVF      
2013 05  05.38978  14 38 39.582  -21 24 09.57  21.6w 03HM57    F51  C~1vVF      
2013 05  05.40460  14 38 39.440  -21 24 08.97  21.6w 03HM57    F51  C~1vVF      
2013 05  05.41939  14 38 39.310  -21 24 08.40  21.5w 03HM57    F51  C~1vVF      
2013 05  05.43418  14 38 39.164  -21 24 07.83  21.4w 03HM57    F51  C~1vVF      
2013 05  18.39299  14 36 39.721  -21 16 08.75  22.0G 03HM57    F51  C~2kHm      
2013 05  18.40524  14 36 39.606  -21 16 08.34  21.9G 03HM57    F51  C~2kHm      
2013 06  04.36386  14 34 19.041  -21 05 28.86  21.6G 03HM57    F51  C~2kHm      
2014 03  12.54535  15 01 53.201  -23 30 32.92  21.7G 03HM57    F51  C~2kHm      
2014 03  12.55661  15 01 53.182  -23 30 33.07  21.2i 03HM57    F51  C~1vVF      
2014 03  12.56892  15 01 53.117  -23 30 33.22  21.8G 03HM57    F51  C~2kHm      
2014 03  12.58020  15 01 53.069  -23 30 33.39  21.6G 03HM57    F51  C~2kHm      
2014 03  12.58662  15 01 53.046  -23 30 33.15  21.6w 03HM57    F51  C~1vVF      
2014 03  12.59857  15 01 52.998  -23 30 33.12  21.7w 03HM57    F51  C~1vVF      
2014 03  12.61049  15 01 52.946  -23 30 33.59  21.5w 03HM57    F51  C~1vVF      
2014 03  12.62240  15 01 52.909  -23 30 33.36  21.8w 03HM57    F51  C~1vVF      
2014 04  29.40556  14 55 54.786  -23 20 40.50  21.3w 03HM57    F51  C~1vVF      
2014 04  29.41615  14 55 54.671  -23 20 40.16  21.2w 03HM57    F51  C~1vVF      
2014 04  29.42673  14 55 54.571  -23 20 39.92  21.2w 03HM57    F51  C~1vVF      
2014 04  29.43732  14 55 54.467  -23 20 39.66  21.2G 03HM57    F51  C~2kHm      
2014 05  07.42545  14 54 36.000  -23 16 29.18  21.1G 03HM57    F51  C~2kHm      
2014 05  07.43599  14 54 35.894  -23 16 28.91  21.3G 03HM57    F51  C~2kHm      
2014 05  23.32051  14 52 02.040  -23 07 04.04  21.3w 03HM57    F51  C~1vVF      
2014 05  23.33177  14 52 01.937  -23 07 03.60  21.3w 03HM57    F51  C~1vVF      
2014 05  23.34305  14 52 01.830  -23 07 03.19  21.3w 03HM57    F51  C~1vVF      
2014 05  23.35434  14 52 01.719  -23 07 02.72  21.2w 03HM57    F51  C~1vVF      
2014 06  04.30460  14 50 15.580  -22 59 34.37  21.2G 03HM57    F51  C~2kHm      
2014 06  04.31624  14 50 15.497  -22 59 33.74  21.3G 03HM57    F51  C~2kHm      
2014 06  04.32785  14 50 15.391  -22 59 33.33  21.0G 03HM57    F51  C~2kHm      
2014 06  04.33950  14 50 15.315  -22 59 32.69  21.1G 03HM57    F51  C~2kHm      
2014 06  20.29676  14 48 18.301  -22 50 02.39  21.5w 03HM57    F51  C~1vVF      
2014 06  20.30867  14 48 18.228  -22 50 02.13  21.6w 03HM57    F51  C~1vVF      
2014 06  20.32072  14 48 18.173  -22 50 01.69  21.4w 03HM57    F51  C~1vVF      
2014 06  20.33259  14 48 18.084  -22 50 01.33  21.6w 03HM57    F51  C~1vVF      
2014 06  30.27619  14 47 24.158  -22 44 50.92  21.5w 03HM57    F51  C~1vVF      
2014 06  30.28806  14 47 24.099  -22 44 50.41  21.6w 03HM57    F51  C~1vVF      
2014 06  30.29994  14 47 24.041  -22 44 49.98  21.4w 03HM57    F51  C~1vVF      
2014 06  30.31183  14 47 23.983  -22 44 49.76  21.5w 03HM57    F51  C~1vVF      
2015 01  21.66362  15 18 08.433  -24 50 59.24  21.6G 03HM57    F51  C~2kHm      
2015 03  22.55316  15 19 21.448  -25 22 49.61  21.5w 03HM57    F51  C~1vVF      
2015 03  22.56374  15 19 21.388  -25 22 49.74  21.4w 03HM57    F51  C~1vVF      
2015 03  22.57436  15 19 21.336  -25 22 49.83  21.4w 03HM57    F51  C~1vVF      
2015 03  22.58495  15 19 21.281  -25 22 49.94  21.4w 03HM57    F51  C~1vVF      
2015 04  02.54901  15 18 14.103  -25 23 12.27  21.5G 03HM57    F51  C~2kHm      
2015 04  02.55986  15 18 13.997  -25 23 12.21  21.6G 03HM57    F51  C~2kHm      
2015 04  02.57064  15 18 13.929  -25 23 12.31  21.5G 03HM57    F51  C~2kHm      
2015 04  02.58145  15 18 13.835  -25 23 12.16  21.8G 03HM57    F51  C~2kHm      
2015 04  20.48923  15 15 45.204  -25 20 07.60  21.3G 03HM57    F51  C~2kHm      
2015 04  20.51068  15 15 45.002  -25 20 07.00  21.1G 03HM57    F51  C~2kHm      
2015 04  20.52140  15 15 44.890  -25 20 06.91  21.5G 03HM57    F51  C~2kHm      
2015 05  26.36793  15 09 42.317  -25 03 16.70  20.7i 03HM57    F51  C~1vVF      
2015 05  26.37854  15 09 42.221  -25 03 16.24  20.8i 03HM57    F51  C~1vVF      
2015 05  26.38913  15 09 42.109  -25 03 16.03  20.9i 03HM57    F51  C~1vVF      
2015 05  26.39971  15 09 41.997  -25 03 15.60  20.7i 03HM57    F51  C~1vVF      
2015 05  29.37338  15 09 12.739  -25 01 28.58  20.9i 03HM57    F51  C~1vVF      
2015 05  29.38396  15 09 12.630  -25 01 28.17  21.0i 03HM57    F51  C~1vVF      
2015 05  29.39453  15 09 12.531  -25 01 27.80  20.8i 03HM57    F51  C~1vVF      
2015 05  29.40556  15 09 12.411  -25 01 27.34  20.9i 03HM57    F51  C~1vVF      
2015 06  11.31423  15 07 14.281  -24 53 32.66  21.3w 03HM57    F51  C~1vVF      
2015 06  11.32542  15 07 14.187  -24 53 32.29  21.4w 03HM57    F51  C~1vVF      
2015 06  11.33662  15 07 14.086  -24 53 31.83  21.1w 03HM57    F51  C~1vVF      
2015 06  11.34783  15 07 13.984  -24 53 31.50  21.2w 03HM57    F51  C~1vVF      
2015 06  22.37347  15 05 48.830  -24 46 54.50  21.1i 03HM57    F51  C~1vVF      
2015 06  22.38379  15 05 48.744  -24 46 54.02  21.0i 03HM57    F51  C~1vVF      
2015 06  22.39414  15 05 48.666  -24 46 53.76  21.1i 03HM57    F51  C~1vVF      
2015 06  22.40450  15 05 48.610  -24 46 53.19  21.0i 03HM57    F51  C~1vVF      
2016 03  10.58923  15 40 30.741  -27 10 59.49  21.1G 03HM57    F51  C~2kHm      
2016 03  10.59917  15 40 30.707  -27 10 59.63  20.9G 03HM57    F51  C~2kHm      
2016 03  10.60912  15 40 30.683  -27 11 00.00  21.1G 03HM57    F51  C~2kHm      
2016 03  10.61907  15 40 30.667  -27 11 00.25  21.5G 03HM57    F51  C~2kHm      
2016 06  06.34870  15 28 15.277  -26 56 46.86  21.0G 03HM57    F51  C~2kHm      
2016 06  06.36098  15 28 15.152  -26 56 46.46  20.9G 03HM57    F51  C~2kHm      
2016 07  09.27578  15 24 01.684  -26 37 41.87  20.9G 03HM57    F51  C~2kHm      
2016 07  09.28563  15 24 01.642  -26 37 41.32  21.0G 03HM57    F51  C~2kHm      
2016 07  09.29556  15 24 01.572  -26 37 41.16  21.1G 03HM57    F51  C~2kHm      
2017 04  04.51420  16 02 11.068  -29 08 26.67  21.1G 03HM57    F51  C~2kHm      
2017 04  04.52649  16 02 10.993  -29 08 26.68  21.0G 03HM57    F51  C~2kHm      
2017 04  04.53877  16 02 10.900  -29 08 27.02  20.9G 03HM57    F51  C~2kHm      
2017 04  04.55105  16 02 10.835  -29 08 27.23  20.9G 03HM57    F51  C~2kHm      
2017 06  26.29452  15 48 19.831  -28 45 46.71  20.4G 03HM57    F51  C~2kHm      
2017 06  26.30510  15 48 19.737  -28 45 46.63  20.5G 03HM57    F51  C~2kHm      
2017 06  26.31568  15 48 19.655  -28 45 46.12  20.2G 03HM57    F51  C~2kHm      
2017 06  26.32624  15 48 19.551  -28 45 45.64  20.7G 03HM57    F51  C~2kHm      
2017 07  21.25457  15 45 43.131  -28 31 56.35  20.3G 03HM57    F51  C~2kHm      

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     0.28
  2   0.0001      0.00     0.03       0.00     0.14
  3   0.0002      0.00    -0.08       0.00     0.09
  4   0.0029      0.00     0.31       0.00    -0.18
  5   0.0929      0.00    -0.08       0.00    -0.19
  6   0.0931      0.00     0.10       0.00    -0.19
  7   0.0932      0.00     0.07       0.00    -0.18
  8   7.9676      0.00     0.00       0.00    -0.04
  9   8.9722      0.00     0.17       0.00     0.04
 10   8.9722      0.00     0.12       0.00    -0.01
 11   8.9723      0.00     0.16       0.00    -0.03
 12   8.9723      0.00     0.06       0.00    -0.01
 13   9.9635      0.00     0.13       0.00     0.13
 14   9.9635      0.00     0.02       0.00    -0.18
 15   9.9636      0.00     0.27       0.00     0.01
 16   9.9636      0.00     0.12       0.00     0.08
 17  10.0262      0.00     0.06       0.00    -0.14
 18  10.0262      0.00     0.06       0.00    -0.06
 19  10.0262      0.00     0.23       0.00    -0.02
 20  10.0263      0.00     0.16       0.00     0.03
 21  10.0618      0.00     0.05       0.00    -0.31
 22  10.0618      0.00    -0.00       0.00    -0.37
 23  10.1082      0.00     0.06       0.00    -0.03
 24  10.8781      0.00    -0.25       0.00    -0.08
 25  10.8781      0.00     0.17       0.00    -0.14
 26  10.8781      0.00    -0.03       0.00    -0.20
 27  10.8782      0.00    -0.04       0.00    -0.28
 28  10.8782      0.00     0.02       0.00     0.01
 29  10.8782      0.00     0.05       0.00     0.13
 30  10.8782      0.00     0.02       0.00    -0.25
 31  10.8783      0.00     0.21       0.00     0.07
 32  11.0091      0.00     0.21       0.00     0.05
 33  11.0091      0.00     0.06       0.00     0.08
 34  11.0092      0.00     0.14       0.00     0.01
 35  11.0092      0.00     0.16       0.00    -0.04
 36  11.0310      0.00    -0.02       0.00     0.02
 37  11.0311      0.00    -0.02       0.00    -0.06
 38  11.0746      0.00     0.08       0.00     0.08
 39  11.0746      0.00     0.15       0.00     0.10
 40  11.0746      0.00     0.15       0.00     0.09
 41  11.0747      0.00     0.10       0.00     0.15
 42  11.1074      0.00    -0.15       0.00    -0.22
 43  11.1074      0.00     0.09       0.00    -0.02
 44  11.1074      0.00    -0.02       0.00    -0.04
 45  11.1075      0.00     0.33       0.00     0.16
 46  11.1512      0.00    -0.12       0.00     0.12
 47  11.1512      0.00    -0.07       0.00    -0.02
 48  11.1512      0.00     0.27       0.00     0.02
 49  11.1513      0.00     0.08       0.00    -0.02
 50  11.1785      0.00     0.14       0.00    -0.13
 51  11.1785      0.00     0.11       0.00     0.04
 52  11.1785      0.00     0.09       0.00     0.13
 53  11.1786      0.00     0.07       0.00     0.00
 54  11.7408      0.00    -0.07       0.00    -0.07
 55  11.9048      0.00     0.10       0.00     0.10
 56  11.9048      0.00     0.04       0.00     0.04
 57  11.9048      0.00     0.12       0.00     0.03
 58  11.9049      0.00     0.14       0.00    -0.01
 59  11.9349      0.00     0.42       0.00    -0.03
 60  11.9349      0.00     0.02       0.00    -0.00
 61  11.9349      0.00     0.17       0.00    -0.14
 62  11.9350      0.00    -0.06       0.00    -0.02
 63  11.9840      0.00     0.08       0.00    -0.00
 64  11.9841      0.00     0.13       0.00     0.22
 65  11.9841      0.00    -0.01       0.00     0.12
 66  12.0822      0.00     0.14       0.00     0.04
 67  12.0823      0.00     0.32       0.00     0.12
 68  12.0823      0.00     0.25       0.00    -0.04
 69  12.0823      0.00     0.18       0.00     0.01
 70  12.0905      0.00     0.17       0.00    -0.02
 71  12.0905      0.00     0.12       0.00     0.01
 72  12.0905      0.00     0.21       0.00    -0.00
 73  12.0905      0.00     0.05       0.00     0.06
 74  12.1259      0.00     0.04       0.00    -0.06
 75  12.1259      0.00     0.09       0.00    -0.10
 76  12.1259      0.00     0.03       0.00    -0.05
 77  12.1260      0.00    -0.04       0.00    -0.14
 78  12.1562      0.00     0.30       0.00    -0.03
 79  12.1562      0.00     0.11       0.00     0.08
 80  12.1562      0.00     0.04       0.00    -0.02
 81  12.1562      0.00     0.30       0.00     0.18
 82  12.8741      0.00     0.23       0.00     0.06
 83  12.8741      0.00     0.02       0.00     0.18
 84  12.8741      0.00    -0.05       0.00     0.06
 85  12.8742      0.00     0.01       0.00     0.06
 86  13.1143      0.00     0.08       0.00    -0.06
 87  13.1144      0.00     0.08       0.00    -0.09
 88  13.2045      0.00     0.15       0.00    -0.14
 89  13.2045      0.00     0.27       0.00     0.10
 90  13.2045      0.00    -0.02       0.00    -0.05
 91  13.9416      0.00     0.08       0.00    -0.05
 92  13.9417      0.00     0.12       0.00     0.12
 93  13.9417      0.00    -0.11       0.00    -0.04
 94  13.9417      0.00     0.08       0.00    -0.07
 95  14.1683      0.00     0.05       0.00    -0.02
 96  14.1683      0.00     0.04       0.00    -0.31
 97  14.1683      0.00     0.22       0.00    -0.17
 98  14.1684      0.00     0.06       0.00    -0.06
 99  14.2366      0.00    -0.38       0.00    -0.18

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.

03HM57    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        41.574    41.573    41.575
ecceobj         0.677     0.677     0.677
incobj         10.821    10.821    10.821
qmin           12.997    13.018    12.666
qmax           71.433    76.126    74.508
amean          39.770    42.225    41.171
amin           37.736    40.350    38.479
amax           42.460    45.039    43.709
emean           0.666     0.679     0.684
emin            0.645     0.665     0.658
emax            0.682     0.695     0.706
imean          10.652    10.052    10.179
imin            9.767     8.669     9.396
imax           12.271    11.604    12.366
excite_mean     0.691     0.701     0.707
fracstop        0.027     0.035     0.025
cjmean          2.440     2.423     2.408

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       161.4     159.4     181.9
kozaiamp        179.1     179.4     179.5