Orbit Fit and Astrometric record for 511555

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: 511555    
# Created Thu Dec  9 02:07:36 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     44 observations of     44
# Arc:   4.06y
# First observation: 2013/08/08
#  Last observation: 2017/08/30
# Chi-squared of fit:     7.45 DOF:     82 RMS:  0.07
# Min/Max residuals:    -0.15    0.20
# Exact a, adot, b, bdot, g, gdot:
  1.555104E-05  2.485754E-02  4.723272E-06  8.122805E-03  2.516372E-02  8.804184E-04
# 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
    2.412294   23.743219    0.940926    0.016143   -0.382324  2456513.056438
# Heliocentric elements and errors
Epoch:              2456512.5000  =  2013/08/08
Mean Anomaly:            4.66859 +/-     0.000
Argument of Peri:        1.88603 +/-     0.000
Long of Asc Node:       15.15277 +/-     0.000
Inclination:            18.29246 +/-     0.000
Eccentricity:         0.10083723 +/-    0.0000
Semi-Major Axis:     44.61428300 +/-    0.0000
Time of Perihelion: 2455100.9623 +/-       0.0
Perihelion:          40.11550226 +/-    0.0000
Aphelion:            49.11306373 +/-    0.0000
Period (y)              298.0019 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           37.07269274 +/-    0.0000
Ecliptic Y           15.28242601 +/-    0.0000
Ecliptic Z            1.67287114 +/-    0.0000
Ecliptic XDOT        -0.00104162 +/-    0.0000
Ecliptic YDOT         0.00249830 +/-    0.0000
Ecliptic ZDOT         0.00088716 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.13396454 +/-    0.0000
Geocenter to KBO     39.73976033 +/-    0.0000
# Hcoef:  7.42

The following table shows the complete astrometric record for 511555. 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 (511555) followed by the observatory code and reference code for the source of the astrometry.

2013 08  08.55566  01 24 16.787  +11 27 25.79  23.0r 511555    568  C~2WZx      
2013 08  08.59934  01 24 16.728  +11 27 25.91  22.6r 511555    568  C~2WZx      
2013 09  01.52570  01 23 17.937  +11 24 57.80  23.6r 511555    568  C~2WZx      
2013 09  01.56454  01 23 17.793  +11 24 57.37  23.7r 511555    568  C~2WZx      
2013 09  02.51296  01 23 14.573  +11 24 45.78  23.4r 511555    568  C~2WZx      
2013 09  02.56252  01 23 14.405  +11 24 45.19  23.3r 511555    568  C~2WZx      
2013 10  09.40083  01 20 34.000  +11 13 04.13  23.2r 511555    568  C~2WZx      
2013 10  30.37669  01 18 51.365  +11 04 32.47  23.3r 511555    568  C~2WZx      
2013 10  31.36761  01 18 46.697  +11 04 08.65  23.4r 511555    568  C~2WZx      
2013 11  01.31349  01 18 42.264  +11 03 45.55  23.3r 511555    568  C~2WZx      
2013 11  01.35271  01 18 42.071  +11 03 44.72  23.2r 511555    568  C~2WZx      
2013 11  01.44470  01 18 41.637  +11 03 42.52  23.3r 511555    568  C~2WZx      
2013 11  27.36654  01 16 56.099  +10 54 25.55  23.5r 511555    568  C~2WZx      
2013 12  04.35092  01 16 34.871  +10 52 30.92  23.5r 511555    568  C~2WZx      
2013 12  29.32307  01 15 53.088  +10 48 47.62  23.5r 511555    568  C~2WZx      
2013 12  30.20391  01 15 52.694  +10 48 45.69  23.8r 511555    568  C~2WZx      
2013 12  30.29352  01 15 52.642  +10 48 45.34  23.8r 511555    568  C~2WZx      
2013 12  30.29947  01 15 52.656  +10 48 45.44  23.7r 511555    568  C~2WZx      
2014 07  25.52856  01 29 09.236  +12 23 39.86  23.9r 511555    568  C~2WZx      
2014 07  25.57013  01 29 09.229  +12 23 40.22  23.7r 511555    568  C~2WZx      
2014 07  25.61177  01 29 09.225  +12 23 40.69  23.7r 511555    568  C~2WZx      
2014 08  23.61501  01 28 29.482  +12 24 19.07  23.3r 511555    568  C~2WZx      
2014 08  27.46040  01 28 18.880  +12 23 51.09  23.3r 511555    568  C~2WZx      
2014 08  27.60325  01 28 18.454  +12 23 49.90  23.5r 511555    568  C~2WZx      
2014 09  18.39638  01 26 58.967  +12 19 02.87  23.0r 511555    568  C~2WZx      
2014 09  18.43577  01 26 58.796  +12 19 02.19  23.4r 511555    568  C~2WZx      
2014 09  23.47669  01 26 36.637  +12 17 29.16  23.5r 511555    568  C~2WZx      
2014 10  22.43708  01 24 16.295  +12 06 34.82  23.2r 511555    568  C~2Gdr      
2014 10  22.47652  01 24 16.102  +12 06 33.86  23.4r 511555    568  C~2Gdr      
2014 10  22.51541  01 24 15.902  +12 06 32.87  23.2r 511555    568  C~2Gdr      
2014 10  23.43604  01 24 11.359  +12 06 10.25  23.4r 511555    568  C~2Gdr      
2014 10  25.44113  01 24 01.509  +12 05 21.07  23.5r 511555    568  C~2WZx      
2014 11  19.24852  01 22 09.649  +11 55 40.07  23.4r 511555    568  C~2Gdr      
2014 11  19.38146  01 22 09.116  +11 55 37.31  23.3r 511555    568  C~2WZx      
2014 11  21.22724  01 22 01.951  +11 54 58.68  23.3r 511555    568  C~2WZx      
2014 11  21.38890  01 22 01.318  +11 54 55.26  23.3r 511555    568  C~2WZx      
2015 01  19.25806  01 20 40.112  +11 47 20.20  24.0r 511555    568  C~2WZx      
2015 01  19.30409  01 20 40.174  +11 47 20.33  23.7r 511555    568  C~2WZx      
2015 02  18.25202  01 22 03.474  +11 55 36.60  23.5r 511555    568  C~2WZx      
2015 12  07.21672  01 25 53.522  +12 48 13.72  23.4r 511555    568  C~2WZx      
2015 12  07.28352  01 25 53.328  +12 48 12.63  23.1r 511555    568  C~2WZx      
2015 12  07.45332  01 25 52.833  +12 48 09.78  23.6w 511555    568  C~2WZx      
2017 08  25.60644  01 42 44.475  +15 15 04.92  23.5w 511555    568  C~2WZx      
2017 08  30.62762  01 42 30.811  +15 14 42.02  24.0w 511555    568  C~2WZx      

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    -0.02       0.00     0.08
     2   0.0001      0.00     0.12       0.00     0.20
     3   0.0656      0.00     0.07       0.00    -0.04
     4   0.0657      0.00    -0.08       0.00    -0.00
     5   0.0683      0.00    -0.07       0.00     0.00
     6   0.0685      0.00     0.03       0.00     0.03
     7   0.1693      0.00    -0.09       0.00    -0.12
     8   0.2268      0.00    -0.11       0.00    -0.09
     9   0.2295      0.00     0.02       0.00     0.12
    10   0.2321      0.00     0.01       0.00    -0.12
    11   0.2322      0.00    -0.08       0.00    -0.01
    12   0.2324      0.00    -0.02       0.00     0.01
    13   0.3034      0.00     0.04       0.00     0.03
    14   0.3225      0.00     0.06       0.00     0.00
    15   0.3909      0.00    -0.10       0.00     0.13
    16   0.3933      0.00     0.00       0.00     0.05
    17   0.3935      0.00    -0.10       0.00    -0.13
    18   0.3935      0.00     0.15       0.00    -0.02
    19   0.9609      0.00     0.06       0.00    -0.04
    20   0.9610      0.00     0.03       0.00    -0.07
    21   0.9611      0.00     0.06       0.00     0.01
    22   1.0405      0.00    -0.09       0.00    -0.01
    23   1.0511      0.00    -0.06       0.00    -0.04
    24   1.0515      0.00    -0.02       0.00    -0.06
    25   1.1111      0.00     0.01       0.00    -0.01
    26   1.1112      0.00     0.02       0.00    -0.01
    27   1.1250      0.00     0.15       0.00     0.09
    28   1.2043      0.00    -0.07       0.00     0.03
    29   1.2044      0.00     0.01       0.00     0.04
    30   1.2045      0.00    -0.07       0.00     0.01
    31   1.2071      0.00    -0.14       0.00    -0.03
    32   1.2126      0.00    -0.02       0.00     0.02
    33   1.2805      0.00     0.07       0.00    -0.00
    34   1.2808      0.00     0.11       0.00     0.05
    35   1.2859      0.00     0.02       0.00     0.03
    36   1.2863      0.00     0.00       0.00    -0.06
    37   1.4475      0.00     0.11       0.00     0.08
    38   1.4476      0.00     0.11       0.00    -0.15
    39   1.5296      0.00     0.07       0.00     0.01
    40   2.3290      0.00     0.02       0.00     0.03
    41   2.3292      0.00     0.00       0.00     0.01
    42   2.3296      0.00    -0.12       0.00    -0.10
    43   4.0467      0.00     0.00       0.00    -0.02
    44   4.0604      0.00    -0.01       0.00     0.09

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.

511555    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        44.855    44.855    44.855
ecceobj         0.106     0.106     0.106
incobj         18.244    18.244    18.244
qmin           39.391    39.365    39.335
qmax           50.040    50.036    50.070
amean          44.554    44.555    44.555
amin           44.179    44.150    44.148
amax           44.968    44.960    44.969
emean           0.101     0.101     0.101
emin            0.088     0.089     0.088
emax            0.113     0.113     0.115
imean          18.153    18.149    18.150
imin           17.720    17.724    17.703
imax           18.509    18.509    18.509
excite_mean     0.327     0.327     0.327
fracstop        1.000     1.000     1.000
cjmean          2.975     2.975     2.975

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       165.6     166.2     165.6
kozaiamp        180.0     180.0     180.0