Orbit Fit and Astrometric record for 577627

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: 577627    
# Created Sat Dec  4 02:08:17 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     53 observations of     53
# Arc:  10.19y
# First observation: 2011/04/30
#  Last observation: 2021/07/09
# Chi-squared of fit:    55.37 DOF:    100 RMS:  0.18
# Min/Max residuals:    -0.51    0.94
# Exact a, adot, b, bdot, g, gdot:
  1.536671E-05  2.935489E-02  3.083423E-06  5.314804E-03  2.767961E-02  1.776040E-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
   18.126133 -141.800922   -0.021376    0.314223   -0.960050  2455681.902786
# Heliocentric elements and errors
Epoch:              2455682.5000  =  2011/05/01
Mean Anomaly:           29.13672 +/-     0.000
Argument of Peri:       24.70687 +/-     0.000
Long of Asc Node:      159.21741 +/-     0.000
Inclination:            20.35205 +/-     0.000
Eccentricity:         0.10764675 +/-    0.0000
Semi-Major Axis:     40.79180516 +/-    0.0000
Time of Perihelion: 2447980.6340 +/-       0.0
Perihelion:          36.40069992 +/-    0.0000
Aphelion:            45.18291041 +/-    0.0000
Period (y)              260.5359 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -27.75883455 +/-    0.0000
Ecliptic Y          -21.87437859 +/-    0.0000
Ecliptic Z           11.23982221 +/-    0.0000
Ecliptic XDOT         0.00179095 +/-    0.0000
Ecliptic YDOT        -0.00227798 +/-    0.0000
Ecliptic ZDOT         0.00055430 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.08601218 +/-    0.0000
Geocenter to KBO     36.12767879 +/-    0.0000
# Hcoef:  7.10

The following table shows the complete astrometric record for 577627. 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 (577627) followed by the observatory code and reference code for the source of the astrometry.

2011 04  30.40202  14 46 22.593  +02 57 40.65  23.1w 577627    F51  C~1w3u      
2011 04  30.40268  14 46 22.578  +02 57 40.74  23.0w 577627    F51  C~1w3u      
2011 04  30.41556  14 46 22.516  +02 57 41.27  23.2w 577627    F51  C~1w3u      
2011 04  30.41622  14 46 22.504  +02 57 41.21  23.3w 577627    F51  C~1w3u      
2011 04  30.43063  14 46 22.427  +02 57 41.66  23.1w 577627    F51  C~1w3u      
2011 04  30.43131  14 46 22.430  +02 57 41.71  23.2w 577627    F51  C~1w3u      
2011 04  30.44428  14 46 22.366  +02 57 41.90  23.3w 577627    F51  C~1w3u      
2012 04  27.51748  14 53 18.563  +02 42 27.37  23.6G 577627    F51  C~2r7O      
2012 05  18.36776  14 51 33.100  +02 50 36.45  22.8w 577627    F51  C~1w3u      
2012 05  18.38135  14 51 33.046  +02 50 36.56  22.9w 577627    F51  C~1w3u      
2012 05  18.39497  14 51 32.969  +02 50 37.16  22.9w 577627    F51  C~1w3u      
2012 05  18.40931  14 51 32.894  +02 50 37.27  22.8w 577627    F51  C~1w3u      
2013 04  17.50886  15 00 52.241  +02 22 47.25  22.2w 577627    F51  C~1w3u      
2013 04  17.53916  15 00 52.066  +02 22 48.15  22.3w 577627    F51  C~1w3u      
2013 04  17.55432  15 00 52.016  +02 22 49.03  22.3w 577627    F51  C~1w3u      
2013 05  10.39243  14 58 58.117  +02 33 34.74  22.8w 577627    F51  C~1w3u      
2013 05  10.40727  14 58 58.049  +02 33 34.98  22.6w 577627    F51  C~1w3u      
2013 05  10.42214  14 58 57.976  +02 33 35.53  22.3w 577627    F51  C~1w3u      
2013 05  10.43701  14 58 57.886  +02 33 35.91  22.3w 577627    F51  C~1w3u      
2013 07  14.28011  14 54 55.653  +02 34 53.66  23.3G 577627    F51  C~2r7O      
2014 04  08.50520  15 08 14.984  +02 03 01.43  22.3w 577627    F51  C~1w3u      
2014 04  08.53065  15 08 14.858  +02 03 01.81  21.8G 577627    F51  C~2r7O      
2014 05  04.39550  15 06 12.257  +02 16 38.32  23.2G 577627    F51  C~2r7O      
2014 05  04.40750  15 06 12.192  +02 16 39.00  22.7G 577627    F51  C~2r7O      
2014 05  04.41950  15 06 12.141  +02 16 39.19  23.7G 577627    F51  C~2r7O      
2014 05  04.43156  15 06 12.071  +02 16 39.44  22.7G 577627    F51  C~2r7O      
2014 05  08.39051  15 05 51.887  +02 18 18.07  22.8G 577627    F51  C~2r7O      
2014 05  28.36314  15 04 12.002  +02 24 15.11  22.6G 577627    F51  C~2r7O      
2014 07  01.39809  15 01 59.818  +02 24 15.13  22.4G 577627    F51  C~2r7O      
2015 02  18.59626  15 16 37.645  +01 18 29.06  23.2G 577627    F51  C~2r7O      
2015 04  04.47932  15 15 11.514  +01 45 58.53  22.3G 577627    F51  C~2r7O      
2015 04  12.41248  15 14 39.165  +01 50 42.99  22.8G 577627    F51  C~2r7O      
2015 04  13.58175  15 14 34.070  +01 51 23.51  23.3G 577627    F51  C~2r7O      
2015 05  13.41969  15 12 08.594  +02 05 36.36  21.6G 577627    F51  C~2r7O      
2015 06  05.39890  15 10 15.955  +02 10 59.92  23.1G 577627    F51  C~2r7O      
2015 07  09.29524  15 08 17.404  +02 08 14.55  22.8G 577627    F51  C~2r7O      
2015 07  09.30786  15 08 17.389  +02 08 14.32  23.1G 577627    F51  C~2r7O      
2015 07  09.32045  15 08 17.356  +02 08 13.94  23.0G 577627    F51  C~2r7O      
2015 07  09.33304  15 08 17.324  +02 08 13.84  23.0G 577627    F51  C~2r7O      
2015 07  12.29664  15 08 11.154  +02 07 23.51  22.6G 577627    F51  C~2r7O      
2015 07  12.32183  15 08 11.101  +02 07 23.04  21.9G 577627    F51  C~2r7O      
2015 07  12.33443  15 08 11.075  +02 07 22.77  23.0G 577627    F51  C~2r7O      
2016 02  24.59391  15 23 09.581  +01 07 27.95  23.1G 577627    F51  C~2r7O      
2016 04  10.55839  15 21 22.188  +01 35 34.52  21.8G 577627    F51  C~2r7O      
2016 04  17.53690  15 20 51.823  +01 39 32.42  23.1G 577627    F51  C~2r7O      
2016 06  04.40760  15 16 55.901  +01 56 30.25  22.8G 577627    F51  C~2r7O      
2016 07  01.33854  15 15 11.501  +01 55 34.44  23.3G 577627    F51  C~2r7O      
2018 05  20.173280 15 31 27.72   +01 24 15.6   22.6G 577627    705  C~2rA8      
2018 05  20.218900 15 31 27.48   +01 24 16.6   22.4G 577627    705  C~2rA8      
2018 05  20.255070 15 31 27.30   +01 24 17.2   22.6G 577627    705  C~2rA8      
2021 07  09.211340 15 47 24.777  +00 42 43.60  22.9G 577627    G37  C~4uuH      
2021 07  09.245890 15 47 24.677  +00 42 43.52        577627    G37  C~4uuH      
2021 07  09.278790 15 47 24.573  +00 42 42.98        577627    G37  C~4uuH      

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    -0.10
     2   0.0000      0.00     0.10       0.00    -0.03
     3   0.0000      0.00     0.17       0.00     0.14
     4   0.0000      0.00     0.04       0.00     0.06
     5   0.0001      0.00     0.00       0.00     0.11
     6   0.0001      0.00     0.10       0.00     0.14
     7   0.0001      0.00     0.15       0.00    -0.03
     8   0.9942      0.00    -0.19       0.00    -0.06
     9   1.0512      0.00    -0.18       0.00     0.01
    10   1.0513      0.00     0.04       0.00    -0.11
    11   1.0513      0.00    -0.08       0.00     0.25
    12   1.0514      0.00    -0.12       0.00     0.11
    13   1.9661      0.00    -0.07       0.00     0.02
    14   1.9662      0.00    -0.51       0.00    -0.09
    15   1.9662      0.00    -0.16       0.00     0.28
    16   2.0287      0.00     0.01       0.00    -0.16
    17   2.0288      0.00     0.15       0.00    -0.25
    18   2.0288      0.00     0.21       0.00    -0.03
    19   2.0288      0.00     0.02       0.00     0.01
    20   2.2064      0.00    -0.21       0.00     0.07
    21   2.9407      0.00     0.07       0.00     0.14
    22   2.9408      0.00    -0.18       0.00    -0.39
    23   3.0116      0.00     0.02       0.00    -0.42
    24   3.0117      0.00    -0.02       0.00    -0.06
    25   3.0117      0.00     0.14       0.00    -0.18
    26   3.0117      0.00     0.03       0.00    -0.24
    27   3.0226      0.00    -0.24       0.00    -0.04
    28   3.0772      0.00    -0.20       0.00    -0.07
    29   3.1704      0.00    -0.01       0.00     0.13
    30   3.8061      0.00    -0.21       0.00    -0.12
    31   3.9290      0.00     0.26       0.00     0.08
    32   3.9507      0.00     0.19       0.00    -0.10
    33   3.9539      0.00     0.13       0.00    -0.19
    34   4.0356      0.00     0.37       0.00     0.14
    35   4.0986      0.00    -0.27       0.00    -0.07
    36   4.1914      0.00    -0.06       0.00     0.09
    37   4.1914      0.00     0.15       0.00     0.07
    38   4.1914      0.00     0.09       0.00    -0.11
    39   4.1915      0.00     0.05       0.00    -0.01
    40   4.1996      0.00    -0.04       0.00     0.05
    41   4.1996      0.00    -0.06       0.00     0.03
    42   4.1997      0.00    -0.07       0.00    -0.01
    43   4.8219      0.00    -0.18       0.00    -0.12
    44   4.9477      0.00     0.08       0.00     0.20
    45   4.9668      0.00    -0.09       0.00     0.94
    46   5.0979      0.00     0.17       0.00     0.04
    47   5.1716      0.00     0.16       0.00     0.22
    48   7.0548      0.00     0.08       0.00    -0.22
    49   7.0549      0.00     0.02       0.00    -0.02
    50   7.0550      0.00     0.13       0.00    -0.04
    51  10.1925      0.00    -0.12       0.00    -0.25
    52  10.1926      0.00    -0.02       0.00     0.16
    53  10.1927      0.00    -0.05       0.00     0.08

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.

577627    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        40.689    40.689    40.689
ecceobj         0.106     0.106     0.106
incobj         20.363    20.363    20.363
qmin           35.550    35.678    35.483
qmax           46.687    46.590    46.734
amean          40.979    40.983    40.993
amin           40.643    40.660    40.660
amax           41.335    41.341    41.354
emean           0.113     0.111     0.114
emin            0.098     0.096     0.098
emax            0.130     0.128     0.131
imean          19.712    19.760    19.714
imin           18.990    18.990    18.966
imax           20.512    20.533    20.513
excite_mean     0.356     0.356     0.356
fracstop        1.000     1.000     1.000
cjmean          2.917     2.917     2.917

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       175.0     175.7     174.7
kozaiamp        179.9     179.9     180.0