Orbit Fit and Astrometric record for 511551

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: 511551    
# Created Sun Jun  7 01:07:28 2020
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   68 observations of   68
# Arc:  19.09y
# First observation: 2000/09/21
#  Last observation: 2019/10/26
# Chi-squared of fit:    15.55 DOF:  130 RMS:  0.08
# Min/Max residuals:    -0.23    0.27
# Exact a, adot, b, bdot, g, gdot:
  1.428147E-05  2.312952E-02  2.022071E-06  1.346075E-03  2.404214E-02  3.086001E-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
    1.539642    7.855202    0.164607    0.026273   -0.984593  2451808.827753
# Heliocentric elements and errors
Epoch:              2451808.5000  =  2000/09/21
Mean Anomaly:           72.21536 +/-     0.000
Argument of Peri:      297.56385 +/-     0.000
Long of Asc Node:      343.41876 +/-     0.000
Inclination:             3.66176 +/-     0.000
Eccentricity:         0.12765141 +/-    0.0000
Semi-Major Axis:     43.60796614 +/-    0.0000
Time of Perihelion: 2430708.8997 +/-       0.0
Perihelion:          38.04134782 +/-    0.0000
Aphelion:            49.17458447 +/-    0.0000
Period (y)              287.9764 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           42.19201815 +/-    0.0000
Ecliptic Y            5.65915027 +/-    0.0000
Ecliptic Z            1.11766591 +/-    0.0000
Ecliptic XDOT        -0.00002350 +/-    0.0000
Ecliptic YDOT         0.00266174 +/-    0.0000
Ecliptic ZDOT         0.00016283 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.58444232 +/-    0.0000
Geocenter to KBO     41.59359469 +/-    0.0000
# Hcoef:  6.73

The following table shows the complete astrometric record for 511551. 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 (511551) followed by the observatory code and reference code for the source of the astrometry.

2000 09  21.32701  00 26 25.13   +04 31 51.1   23.0R 511551    695  C~25no      
2000 09  21.41517  00 26 24.71   +04 31 48.7         511551    695  C~25no      
2008 10  28.341894 01 01 12.49   +08 49 28.7   22.5V 511551    645  C~25no      
2008 10  28.342723 01 01 12.49   +08 49 28.6   23.6V 511551    645  C~25no      
2008 10  28.345211 01 01 12.49   +08 49 28.7   23.3V 511551    645  C~25no      
2008 11  01.360599 01 00 56.01   +08 47 45.3   23.4V 511551    645  C~25no      
2008 11  01.361428 01 00 56.01   +08 47 45.3   21.7V 511551    645  C~25no      
2008 11  01.363916 01 00 56.02   +08 47 45.3   24.7V 511551    645  C~25no      
2013 08  08.53429  01 28 55.033  +11 53 13.70  23.3r 511551    568  C~25no      
2013 08  08.53922  01 28 55.015  +11 53 13.66  23.2r 511551    568  C~2WZv      
2013 08  08.58770  01 28 54.964  +11 53 13.47  23.3r 511551    568  C~2WZv      
2013 09  01.51405  01 28 04.643  +11 49 47.29  23.1r 511551    568  C~2WZv      
2013 09  01.55288  01 28 04.532  +11 49 46.80  23.0r 511551    568  C~2WZv      
2013 09  02.49556  01 28 01.729  +11 49 33.45  23.1r 511551    568  C~2WZv      
2013 09  02.54696  01 28 01.569  +11 49 32.70  23.1r 511551    568  C~2WZv      
2013 09  29.51508  01 26 21.879  +11 40 57.51  23.1r 511551    568  C~2WZv      
2013 10  03.49165  01 26 04.872  +11 39 24.36  23.0r 511551    568  C~2WZv      
2013 10  04.58571  01 26 00.118  +11 38 58.02  22.8r 511551    568  C~2WZv      
2013 10  09.38918  01 25 39.070  +11 37 00.66  23.1r 511551    568  C~2WZv      
2013 10  29.45275  01 24 10.400  +11 28 28.63  23.1r 511551    568  C~2WZv      
2013 10  30.36505  01 24 06.473  +11 28 05.38  23.1r 511551    568  C~2WZv      
2013 10  31.35588  01 24 02.232  +11 27 40.07  22.9r 511551    568  C~2WZv      
2013 11  01.30170  01 23 58.209  +11 27 16.04  23.0r 511551    568  C~2WZv      
2013 11  01.34074  01 23 58.039  +11 27 15.03  23.0r 511551    568  C~2WZv      
2013 11  01.42897  01 23 57.661  +11 27 12.77  22.8r 511551    568  C~2WZv      
2013 11  27.35126  01 22 21.138  +11 17 12.61  23.0r 511551    568  C~2WZv      
2013 12  03.29403  01 22 04.191  +11 15 20.26  23.2r 511551    568  C~2WZv      
2013 12  04.33911  01 22 01.448  +11 15 01.81  22.9r 511551    568  C~2WZv      
2013 12  29.23399  01 21 21.661  +11 10 00.42  23.0r 511551    568  C~2WZv      
2014 07  25.50098  01 33 32.859  +12 22 44.80  22.8r 511551    568  C~2WZv      
2014 07  25.54031  01 33 32.856  +12 22 45.00  22.8r 511551    568  C~2WZw      
2014 07  25.58207  01 33 32.860  +12 22 45.23  23.0r 511551    568  C~2WZw      
2014 08  23.54089  01 33 00.880  +12 21 36.77  23.1r 511551    568  C~2WZw      
2014 08  23.58776  01 33 00.766  +12 21 36.39  23.0r 511551    568  C~2WZw      
2014 08  25.54619  01 32 56.240  +12 21 17.59  24.6u 511551    568  C~2WZw      
2014 08  25.55046  01 32 56.240  +12 21 17.38  25.3u 511551    568  C~2WZw      
2014 08  27.43321  01 32 51.644  +12 20 57.42  22.9r 511551    568  C~2WZw      
2014 08  27.52904  01 32 51.393  +12 20 56.49  23.0r 511551    568  C~2WZw      
2014 09  18.36363  01 31 41.685  +12 15 20.43  22.9r 511551    568  C~2WZw      
2014 09  18.40832  01 31 41.510  +12 15 19.56  23.0r 511551    568  C~2WZw      
2014 09  23.44649  01 31 21.903  +12 13 38.04  22.9r 511551    568  C~2WZw      
2014 10  22.40934  01 29 16.548  +12 02 08.38  23.1r 511551    568  C~25no      
2014 10  22.44880  01 29 16.369  +12 02 07.35  23.0r 511551    568  C~25no      
2014 10  22.48819  01 29 16.192  +12 02 06.33  23.1r 511551    568  C~25no      
2014 10  23.40059  01 29 12.147  +12 01 43.19  22.9r 511551    568  C~2WZw      
2014 10  25.26507  01 29 03.901  +12 00 55.52  23.0r 511551    568  C~2WZw      
2014 11  19.21279  01 27 21.871  +11 50 43.73  23.2r 511551    568  C~2WZw      
2014 11  19.34560  01 27 21.382  +11 50 40.82  23.1r 511551    568  C~2WZw      
2014 11  21.19245  01 27 14.837  +11 49 59.49  23.2r 511551    568  C~2WZw      
2014 11  21.19865  01 27 14.811  +11 49 59.58  23.0r 511551    568  C~2WZw      
2014 11  21.36159  01 27 14.224  +11 49 55.98  23.0r 511551    568  C~2WZw      
2015 01  28.24775  01 26 10.745  +11 40 39.88  22.8r 511551    568  C~2WZw      
2015 02  18.23136  01 27 09.878  +11 45 28.15  23.2r 511551    568  C~2WZw      
2015 09  15.51502  01 36 25.796  +12 46 04.44  23.2w 511551    568  C~2WZw      
2015 09  15.51940  01 36 25.781  +12 46 04.40  23.2w 511551    568  C~2WZw      
2015 09  15.57438  01 36 25.579  +12 46 03.34  23.2w 511551    568  C~2WZw      
2015 09  15.57846  01 36 25.565  +12 46 03.33  23.2w 511551    568  C~2WZw      
2015 10  09.44415  01 34 48.766  +12 37 38.32  23.2w 511551    568  C~2WZw      
2015 10  09.48680  01 34 48.575  +12 37 37.31  23.2w 511551    568  C~2WZw      
2015 10  13.48307  01 34 30.908  +12 36 00.65        511551    568  C~2WZw      
2015 10  13.49246  01 34 30.868  +12 36 00.51        511551    568  C~2WZw      
2015 10  13.54938  01 34 30.608  +12 35 59.01        511551    568  C~2WZw      
2015 12  07.44090  01 30 57.482  +12 14 47.12  23.3w 511551    568  C~2WZw      
2015 12  07.45744  01 30 57.438  +12 14 46.76        511551    568  C~2WZw      
2017 01  31.22024  01 35 07.813  +12 39 35.72  23.2w 511551    568  C~2WZw      
2017 08  25.62062  01 46 26.944  +13 48 20.68  23.3w 511551    568  C~2WZw      
2019 10  26.243060 01 51 42.711  +14 26 19.11  23.0G 511551    G37  C~3Qu1      
2019 10  26.334400 01 51 42.289  +14 26 16.95        511551    G37  C~3Qu1      

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     0.27       0.00    -0.14
  2   0.0002      0.00    -0.13       0.00    -0.15
  3   8.1013      0.00    -0.11       0.00     0.11
  4   8.1013      0.00    -0.06       0.00     0.04
  5   8.1014      0.00     0.10       0.00     0.20
  6   8.1123      0.00    -0.22       0.00     0.14
  7   8.1123      0.00    -0.17       0.00     0.16
  8   8.1124      0.00     0.13       0.00     0.22
  9  12.8794      0.00     0.06       0.00     0.01
 10  12.8794      0.00    -0.12       0.00    -0.01
 11  12.8796      0.00     0.04       0.00    -0.06
 12  12.9451      0.00    -0.07       0.00    -0.06
 13  12.9452      0.00     0.03       0.00    -0.01
 14  12.9478      0.00    -0.06       0.00    -0.04
 15  12.9479      0.00    -0.08       0.00    -0.05
 16  13.0217      0.00    -0.23       0.00    -0.09
 17  13.0326      0.00    -0.08       0.00     0.03
 18  13.0356      0.00    -0.12       0.00    -0.09
 19  13.0488      0.00     0.00       0.00    -0.02
 20  13.1037      0.00     0.02       0.00    -0.09
 21  13.1062      0.00    -0.10       0.00    -0.02
 22  13.1089      0.00    -0.09       0.00    -0.06
 23  13.1115      0.00    -0.10       0.00    -0.03
 24  13.1116      0.00    -0.12       0.00    -0.05
 25  13.1118      0.00    -0.06       0.00    -0.07
 26  13.1828      0.00    -0.01       0.00     0.02
 27  13.1991      0.00     0.09       0.00     0.04
 28  13.2019      0.00    -0.04       0.00     0.04
 29  13.2701      0.00     0.03       0.00    -0.01
 30  13.8403      0.00     0.02       0.00    -0.03
 31  13.8404      0.00    -0.05       0.00    -0.02
 32  13.8405      0.00    -0.00       0.00     0.01
 33  13.9198      0.00     0.05       0.00    -0.02
 34  13.9199      0.00    -0.03       0.00     0.04
 35  13.9253      0.00    -0.11       0.00     0.20
 36  13.9253      0.00     0.05       0.00     0.03
 37  13.9305      0.00     0.09       0.00    -0.07
 38  13.9307      0.00     0.05       0.00     0.04
 39  13.9905      0.00     0.10       0.00    -0.02
 40  13.9906      0.00     0.05       0.00    -0.03
 41  14.0044      0.00     0.03       0.00    -0.07
 42  14.0837      0.00     0.07       0.00    -0.07
 43  14.0838      0.00     0.06       0.00    -0.09
 44  14.0839      0.00     0.08       0.00    -0.10
 45  14.0864      0.00     0.08       0.00     0.05
 46  14.0915      0.00     0.06       0.00     0.02
 47  14.1599      0.00     0.06       0.00    -0.01
 48  14.1602      0.00     0.05       0.00     0.05
 49  14.1653      0.00     0.09       0.00    -0.16
 50  14.1653      0.00     0.03       0.00     0.07
 51  14.1657      0.00    -0.04       0.00     0.04
 52  14.3516      0.00    -0.00       0.00    -0.09
 53  14.4090      0.00     0.03       0.00    -0.01
 54  14.9820      0.00     0.07       0.00     0.04
 55  14.9820      0.00     0.09       0.00     0.07
 56  14.9822      0.00     0.08       0.00    -0.01
 57  14.9822      0.00     0.09       0.00     0.05
 58  15.0475      0.00     0.09       0.00    -0.03
 59  15.0477      0.00     0.09       0.00    -0.02
 60  15.0586      0.00     0.08       0.00     0.01
 61  15.0586      0.00     0.12       0.00     0.10
 62  15.0588      0.00     0.08       0.00     0.00
 63  15.2091      0.00     0.01       0.00     0.01
 64  15.2091      0.00    -0.00       0.00    -0.06
 65  16.3611      0.00    -0.02       0.00     0.05
 66  16.9262      0.00    -0.07       0.00     0.02
 67  19.0935      0.00    -0.07       0.00     0.00
 68  19.0938      0.00    -0.16       0.00     0.05

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.

511551    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.688    43.688    43.688
ecceobj         0.129     0.129     0.129
incobj          3.657     3.657     3.657
qmin           37.035    37.069    37.090
qmax           50.035    50.027    50.049
amean          43.412    43.412    43.411
amin           43.059    43.048    43.050
amax           43.821    43.813    43.801
emean           0.122     0.122     0.122
emin            0.097     0.097     0.097
emax            0.142     0.143     0.143
imean           4.796     4.796     4.796
imin            3.374     3.373     3.375
imax            5.846     5.845     5.845
excite_mean     0.148     0.148     0.148
fracstop        1.000     1.000     1.000
cjmean          3.067     3.067     3.067

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       178.2     178.3     178.4
kozaiamp        180.0     179.9     179.9