Orbit Fit and Astrometric record for 555756

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: 555756    
# Created Fri Dec  3 02:08:10 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     84 observations of     84
# Arc:  19.18y
# First observation: 2002/03/05
#  Last observation: 2021/05/08
# Chi-squared of fit:    59.50 DOF:    162 RMS:  0.15
# Min/Max residuals:    -0.51    0.46
# Exact a, adot, b, bdot, g, gdot:
  1.438932E-05  2.290407E-02  3.738090E-07  1.114170E-03  2.502837E-02 -2.268223E-03
# Covariance matrix:
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
#      lat0       lon0       xBary       yBary       zBary        JD0
    3.660247  171.529465    0.116466    0.062771   -0.982493  2452338.749932
# Heliocentric elements and errors
Epoch:              2452338.5000  =  2002/03/05
Mean Anomaly:          224.65326 +/-     0.000
Argument of Peri:      198.39330 +/-     0.000
Long of Asc Node:      119.27417 +/-     0.000
Inclination:             4.52455 +/-     0.000
Eccentricity:         0.15459792 +/-    0.0000
Semi-Major Axis:     36.55030277 +/-    0.0000
Time of Perihelion: 2482683.0150 +/-       0.0
Perihelion:          30.89970196 +/-    0.0000
Aphelion:            42.20090359 +/-    0.0000
Period (y)              220.9758 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -40.39390057 +/-    0.0000
Ecliptic Y            6.13854334 +/-    0.0000
Ecliptic Z            2.55072773 +/-    0.0000
Ecliptic XDOT        -0.00012490 +/-    0.0000
Ecliptic YDOT        -0.00251675 +/-    0.0000
Ecliptic ZDOT         0.00010601 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.93726654 +/-    0.0000
Geocenter to KBO     39.95475201 +/-    0.0000
# Hcoef:  6.71

The following table shows the complete astrometric record for 555756. 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 (555756) followed by the observatory code and reference code for the source of the astrometry.

2002 03  05.249189 11 34 41.09   +06 43 17.8   23.1V 555756    645  C~2hhy      
2002 03  05.250018 11 34 41.09   +06 43 18.0   22.8V 555756    645  C~2hhy      
2006 01  07.517092 11 57 31.71   +04 26 42.1   22.9V 555756    645  C~2hhy      
2006 01  07.517921 11 57 31.73   +04 26 42.3   22.5V 555756    645  C~2hhy      
2006 01  07.520409 11 57 31.71   +04 26 42.1   23.8V 555756    645  C~2hhy      
2007 04  15.209389 11 56 36.69   +04 40 53.1   22.6V 555756    645  C~2hhy      
2007 04  15.210219 11 56 36.70   +04 40 53.0   22.4V 555756    645  C~2hhy      
2010 02  24.58516  12 15 32.243  +02 47 41.82  23.6G 555756    F51  C~2rY0      
2010 06  24.25588  12 09 20.543  +03 22 57.45  21.9G 555756    F51  C~2rY0      
2010 06  30.30153  12 09 26.987  +03 21 39.08  23.6G 555756    F51  C~2rY0      
2010 07  01.30010  12 09 28.338  +03 21 23.86  22.8G 555756    F51  C~2rY0      
2011 04  01.40854  12 17 57.054  +02 36 15.99  23.1G 555756    F51  C~2rY0      
2012 02  24.54865  12 25 48.423  +01 47 11.78  22.8G 555756    F51  C~2rY0      
2012 02  28.50919  12 25 32.571  +01 49 10.53  22.6w 555756    F51  C~1vXH      
2012 02  28.52356  12 25 32.509  +01 49 10.89  22.8w 555756    F51  C~1vXH      
2012 02  28.53794  12 25 32.437  +01 49 11.23  22.5w 555756    F51  C~1vXH      
2013 03  19.48615  12 29 15.325  +01 28 56.78  22.7w 555756    F51  C~1vXH      
2013 03  19.50147  12 29 15.215  +01 28 57.35  22.5w 555756    F51  C~1vXH      
2013 03  19.51689  12 29 15.156  +01 28 57.76  22.7w 555756    F51  C~1vXH      
2013 03  19.53232  12 29 15.076  +01 28 58.54  22.4w 555756    F51  C~1vXH      
2013 04  11.40837  12 27 26.961  +01 40 37.82  22.5G 555756    F51  C~2rY0      
2013 04  17.31232  12 27 00.289  +01 43 19.96  21.8G 555756    F51  C~2rY0      
2013 04  20.46004  12 26 46.493  +01 44 41.65  22.9G 555756    F51  C~2rY0      
2014 02  26.51444  12 36 00.683  +00 47 06.23  22.9w 555756    F51  C~1vXH      
2014 02  26.52680  12 36 00.638  +00 47 06.70  22.8w 555756    F51  C~1vXH      
2014 02  26.53917  12 36 00.593  +00 47 07.04  22.6w 555756    F51  C~1vXH      
2014 02  26.55154  12 36 00.526  +00 47 07.24  22.7w 555756    F51  C~1vXH      
2014 04  04.38939  12 33 13.796  +01 06 15.45  23.1G 555756    F51  C~2rY0      
2014 04  23.33638  12 31 47.266  +01 15 03.43  22.1G 555756    F51  C~2rY0      
2014 04  29.25692  12 31 22.726  +01 17 23.93  22.5w 555756    F51  C~1vXH      
2014 04  29.26880  12 31 22.665  +01 17 24.36  22.4w 555756    F51  C~1vXH      
2014 04  29.28070  12 31 22.618  +01 17 24.30  22.6w 555756    F51  C~1vXH      
2014 05  27.30732  12 29 54.394  +01 24 42.52  22.4w 555756    F51  C~1vXH      
2014 05  27.31982  12 29 54.369  +01 24 42.71  22.7w 555756    F51  C~1vXH      
2014 05  27.33234  12 29 54.346  +01 24 42.80  22.8w 555756    F51  C~1vXH      
2014 06  18.33229  12 29 27.763  +01 25 17.17  23.0G 555756    F51  C~2rY0      
2015 01  23.55921  12 42 44.330  +00 03 04.36  22.5w 555756    F51  C~1vXH      
2015 01  23.57460  12 42 44.304  +00 03 04.90  22.6w 555756    F51  C~1vXH      
2015 01  23.58999  12 42 44.284  +00 03 05.07  22.8w 555756    F51  C~1vXH      
2015 01  25.53614  12 42 41.818  +00 03 35.03  22.4w 555756    F51  C~1vXH      
2015 01  25.55148  12 42 41.794  +00 03 35.03  22.9w 555756    F51  C~1vXH      
2015 01  25.58211  12 42 41.747  +00 03 35.48  22.5w 555756    F51  C~1vXH      
2015 02  15.56155  12 41 54.089  +00 10 56.41  22.6G 555756    F51  C~2rY0      
2015 02  16.50772  12 41 51.104  +00 11 20.81  22.5w 555756    F51  C~1vXH      
2015 02  16.52041  12 41 51.082  +00 11 20.98  22.5w 555756    F51  C~1vXH      
2015 02  16.53309  12 41 51.024  +00 11 21.53  22.2w 555756    F51  C~1vXH      
2015 02  16.54578  12 41 51.002  +00 11 21.78  22.7w 555756    F51  C~1vXH      
2015 02  27.54764  12 41 12.004  +00 16 26.09  23.0w 555756    F51  C~1vXH      
2015 02  27.56017  12 41 11.951  +00 16 26.59  22.9w 555756    F51  C~1vXH      
2015 02  27.58524  12 41 11.861  +00 16 27.40  22.7w 555756    F51  C~1vXH      
2015 03  24.46768  12 39 22.381  +00 29 20.45  22.9G 555756    F51  C~2rY0      
2015 05  21.26939  12 35 21.171  +00 52 55.85  23.0G 555756    F51  C~2rY0      
2015 05  21.28370  12 35 21.134  +00 52 56.21  23.2G 555756    F51  C~2rY0      
2015 05  21.31239  12 35 21.050  +00 52 56.45  23.1G 555756    F51  C~2rY0      
2016 01  16.60137  12 48 02.513  -00 29 18.37  22.5G 555756    F51  C~2rY0      
2016 02  02.60535  12 47 42.750  -00 25 08.92  22.2G 555756    F51  C~2rY0      
2016 02  09.53748  12 47 27.236  -00 22 43.77        555756    F51  C~2rY0      
2016 03  07.47779  12 45 53.675  -00 10 32.16  22.2G 555756    F51  C~2rY0      
2016 03  10.41567  12 45 41.009  -00 09 01.41  22.7G 555756    F51  C~2rY0      
2016 03  11.51043  12 45 36.174  -00 08 27.16  23.0G 555756    F51  C~2rY0      
2016 03  13.43379  12 45 27.625  -00 07 26.83  23.0G 555756    F51  C~2rY0      
2016 03  13.44885  12 45 27.563  -00 07 26.59  22.6G 555756    F51  C~2rY0      
2017 01  26.59314  12 53 08.891  -00 58 09.36  22.9G 555756    F51  C~2rY0      
2017 02  21.56765  12 52 07.242  -00 48 51.53  22.6G 555756    F51  C~2rY0      
2017 03  27.45777  12 49 43.415  -00 31 46.74  23.0G 555756    F51  C~2rY0      
2017 03  27.47020  12 49 43.358  -00 31 46.19  22.8G 555756    F51  C~2rY0      
2017 03  27.48261  12 49 43.298  -00 31 45.67  22.3G 555756    F51  C~2rY0      
2017 03  27.49502  12 49 43.231  -00 31 45.30  21.8G 555756    F51  C~2rY0      
2017 04  03.46618  12 49 09.672  -00 28 07.35  23.0G 555756    F51  C~2rY0      
2017 04  03.48006  12 49 09.598  -00 28 06.99  22.6G 555756    F51  C~2rY0      
2017 04  03.49399  12 49 09.545  -00 28 06.75  22.3G 555756    F51  C~2rY0      
2017 04  03.50794  12 49 09.465  -00 28 06.18  23.2G 555756    F51  C~2rY0      
2017 04  20.33436  12 47 49.794  -00 19 55.50  22.4G 555756    F51  C~2rY0      
2017 04  27.31324  12 47 18.754  -00 16 55.06  22.0G 555756    F51  C~2rY0      
2017 04  27.32695  12 47 18.677  -00 16 54.65  22.4G 555756    F51  C~2rY0      
2017 04  27.34069  12 47 18.623  -00 16 54.34  22.4G 555756    F51  C~2rY0      
2017 04  27.35449  12 47 18.552  -00 16 54.16  22.6G 555756    F51  C~2rY0      
2018 03  18.46822  12 55 48.990  -01 08 24.19  22.5G 555756    F51  C~2rY0      
2018 03  18.48003  12 55 48.954  -01 08 23.80  22.5G 555756    F51  C~2rY0      
2018 03  18.49187  12 55 48.873  -01 08 23.27  23.3G 555756    F51  C~2rY0      
2018 03  18.50379  12 55 48.830  -01 08 23.10  22.6G 555756    F51  C~2rY0      
2021 05  08.351236 13 08 08.092  -02 20 07.66  22.4w 555756    F51  C~4n4R      
2021 05  08.373175 13 08 08.006  -02 20 06.69  22.6w 555756    F51  C~4n4R      
2021 05  08.384146 13 08 07.946  -02 20 06.39  22.5w 555756    F51  C~4n4R      

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     0.04       0.00     0.06
     2   0.0000      0.00     0.10       0.00     0.23
     3   3.8447      0.00    -0.18       0.00    -0.14
     4   3.8447      0.00     0.13       0.00     0.05
     5   3.8447      0.00    -0.14       0.00    -0.18
     6   5.1115      0.00    -0.20       0.00     0.02
     7   5.1115      0.00     0.00       0.00    -0.10
     8   7.9763      0.00    -0.01       0.00     0.02
     9   8.3039      0.00     0.14       0.00    -0.33
    10   8.3205      0.00     0.25       0.00     0.01
    11   8.3232      0.00    -0.11       0.00    -0.24
    12   9.0737      0.00    -0.35       0.00     0.19
    13   9.9748      0.00     0.16       0.00    -0.07
    14   9.9857      0.00     0.18       0.00     0.17
    15   9.9857      0.00     0.15       0.00     0.09
    16   9.9857      0.00    -0.03       0.00    -0.00
    17  11.0397      0.00     0.46       0.00     0.00
    18  11.0397      0.00    -0.09       0.00     0.08
    19  11.0397      0.00     0.13       0.00     0.00
    20  11.0398      0.00     0.04       0.00     0.29
    21  11.1024      0.00    -0.28       0.00     0.05
    22  11.1186      0.00    -0.17       0.00     0.20
    23  11.1272      0.00    -0.51       0.00     0.22
    24  11.9816      0.00     0.11       0.00    -0.01
    25  11.9816      0.00     0.18       0.00     0.10
    26  11.9816      0.00     0.24       0.00     0.07
    27  11.9817      0.00    -0.02       0.00    -0.09
    28  12.0825      0.00     0.41       0.00    -0.06
    29  12.1344      0.00    -0.01       0.00    -0.10
    30  12.1506      0.00     0.24       0.00     0.04
    31  12.1506      0.00     0.05       0.00     0.20
    32  12.1507      0.00     0.08       0.00    -0.13
    33  12.2274      0.00    -0.12       0.00    -0.02
    34  12.2274      0.00    -0.08       0.00     0.07
    35  12.2275      0.00    -0.00       0.00     0.06
    36  12.2877      0.00    -0.06       0.00     0.01
    37  12.8879      0.00    -0.01       0.00    -0.10
    38  12.8880      0.00    -0.11       0.00     0.21
    39  12.8880      0.00    -0.11       0.00     0.15
    40  12.8933      0.00     0.03       0.00     0.20
    41  12.8934      0.00     0.01       0.00    -0.05
    42  12.8935      0.00    -0.03       0.00    -0.08
    43  12.9509      0.00    -0.04       0.00    -0.09
    44  12.9535      0.00    -0.28       0.00    -0.02
    45  12.9535      0.00     0.02       0.00    -0.18
    46  12.9535      0.00    -0.23       0.00     0.04
    47  12.9536      0.00     0.06       0.00    -0.03
    48  12.9837      0.00    -0.07       0.00    -0.20
    49  12.9837      0.00    -0.12       0.00    -0.06
    50  12.9838      0.00     0.03       0.00     0.02
    51  13.0519      0.00    -0.08       0.00    -0.13
    52  13.2102      0.00     0.04       0.00    -0.16
    53  13.2102      0.00     0.09       0.00     0.02
    54  13.2103      0.00     0.05       0.00    -0.09
    55  13.8682      0.00     0.01       0.00     0.06
    56  13.9147      0.00     0.22       0.00    -0.46
    57  13.9337      0.00     0.18       0.00     0.12
    58  14.0075      0.00     0.00       0.00    -0.17
    59  14.0155      0.00     0.11       0.00    -0.14
    60  14.0185      0.00    -0.10       0.00     0.01
    61  14.0238      0.00     0.01       0.00     0.12
    62  14.0238      0.00     0.11       0.00    -0.11
    63  14.8976      0.00    -0.03       0.00    -0.03
    64  14.9687      0.00    -0.08       0.00     0.04
    65  15.0615      0.00    -0.07       0.00    -0.28
    66  15.0615      0.00    -0.02       0.00    -0.12
    67  15.0616      0.00    -0.01       0.00     0.01
    68  15.0616      0.00    -0.11       0.00    -0.01
    69  15.0807      0.00    -0.07       0.00     0.15
    70  15.0807      0.00    -0.15       0.00     0.08
    71  15.0808      0.00     0.08       0.00    -0.11
    72  15.0808      0.00    -0.09       0.00     0.03
    73  15.1269      0.00    -0.10       0.00    -0.05
    74  15.1460      0.00     0.17       0.00     0.04
    75  15.1460      0.00    -0.08       0.00     0.11
    76  15.1460      0.00     0.02       0.00     0.08
    77  15.1461      0.00    -0.13       0.00    -0.08
    78  16.0362      0.00    -0.19       0.00     0.10
    79  16.0362      0.00     0.09       0.00     0.12
    80  16.0363      0.00    -0.30       0.00     0.27
    81  16.0363      0.00    -0.11       0.00     0.07
    82  19.1762      0.00     0.12       0.00    -0.32
    83  19.1762      0.00     0.22       0.00     0.17
    84  19.1763      0.00     0.02       0.00     0.23

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.

555756    quality flag:3

Type:           4:3E      4:3E      4:3E

axisobj        36.355    36.355    36.355
ecceobj         0.160     0.160     0.160
incobj          4.531     4.531     4.531
qmin           29.961    29.963    29.959
qmax           43.259    43.262    43.262
amean          36.477    36.477    36.477
amin           36.139    36.135    36.140
amax           36.855    36.855    36.855
emean           0.157     0.157     0.157
emin            0.138     0.138     0.138
emax            0.176     0.175     0.176
imean           3.969     3.968     3.969
imin            2.074     2.075     2.074
imax            5.905     5.904     5.907
excite_mean     0.173     0.173     0.173
fracstop        1.000     1.000     1.000
cjmean          2.993     2.993     2.993

libcent 0       180.3     179.7     180.3
libamp  0        51.7      51.3      51.5
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       180.1     180.2     180.0
kozaiamp        179.9     180.0     179.9