Orbit Fit and Astrometric record for 505679

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: 505679    
# Created Fri Dec 15 02:36:52 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   37 observations of   37
# Arc:   6.89y
# First observation: 2010/10/08
#  Last observation: 2017/08/27
# Chi-squared of fit:    19.06 DOF:   68 RMS:  0.13
# Min/Max residuals:    -0.24    0.50
# Exact a, adot, b, bdot, g, gdot:
  1.395223E-05  2.062947E-02 -2.447925E-06 -3.448314E-03  2.220674E-02  1.565166E-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
    7.501749   43.728303    0.478661    0.113940   -0.865417  2455477.901776
# Heliocentric elements and errors
Epoch:              2455478.5000  =  2010/10/09
Mean Anomaly:           54.35243 +/-     0.000
Argument of Peri:       79.61449 +/-     0.000
Long of Asc Node:      260.87776 +/-     0.000
Inclination:            11.90994 +/-     0.000
Eccentricity:         0.07797443 +/-    0.0000
Semi-Major Axis:     47.87165195 +/-    0.0000
Time of Perihelion: 2437212.9607 +/-       0.0
Perihelion:          44.13888740 +/-    0.0000
Aphelion:            51.60441649 +/-    0.0000
Period (y)              331.2271 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           33.22773397 +/-    0.0000
Ecliptic Y           31.11774468 +/-    0.0000
Ecliptic Z            5.87903298 +/-    0.0000
Ecliptic XDOT        -0.00157959 +/-    0.0000
Ecliptic YDOT         0.00201489 +/-    0.0000
Ecliptic ZDOT        -0.00039632 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   45.90158253 +/-    0.0000
Geocenter to KBO     45.03135855 +/-    0.0000
# Hcoef:  5.87

The following table shows the complete astrometric record for 505679. 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 (505679) followed by the observatory code and reference code for the source of the astrometry.

2010 10  08.40101  02 35 21.392  +23 06 11.65  22.5w 505679    F51  C~1w3w      
2010 10  08.43741  02 35 21.229  +23 06 11.15  22.8w 505679    F51  C~1w3w      
2010 10  08.45650  02 35 21.153  +23 06 10.85  22.6w 505679    F51  C~1w3w      
2010 11  03.44626  02 33 25.792  +22 57 43.54  23.0w 505679    F51  C~1w3w      
2010 11  03.45903  02 33 25.748  +22 57 42.94  22.9w 505679    F51  C~1w3w      
2010 11  03.47182  02 33 25.692  +22 57 42.68  22.9w 505679    F51  C~1w3w      
2010 11  03.48447  02 33 25.619  +22 57 42.20  22.7w 505679    F51  C~1w3w      
2012 10  19.52506  02 44 51.863  +23 23 39.50  22.4w 505679    F51  C~1w3w      
2012 10  19.53932  02 44 51.796  +23 23 39.41  22.5w 505679    F51  C~1w3w      
2012 10  19.55356  02 44 51.710  +23 23 39.19  22.4w 505679    F51  C~1w3x      
2012 11  05.50158  02 43 34.296  +23 17 55.78  21.8i 505679    F51  C~1w3x      
2012 11  05.51524  02 43 34.260  +23 17 55.63  21.7i 505679    F51  C~1w3x      
2013 07  18.59733  02 52 03.277  +23 32 45.66  22.6w 505679    F51  C~1w3x      
2013 07  18.60152  02 52 03.288  +23 32 45.75  22.3w 505679    F51  C~1w3x      
2013 07  18.60569  02 52 03.300  +23 32 45.86  22.9w 505679    F51  C~1w3x      
2013 07  18.60985  02 52 03.309  +23 32 46.03  22.6w 505679    F51  C~1w3x      
2013 10  25.52500  02 49 35.962  +23 31 21.41  21.9i 505679    F51  C~1w3x      
2013 10  25.53757  02 49 35.896  +23 31 21.18  21.6i 505679    F51  C~1w3x      
2013 10  30.34776  02 49 13.924  +23 29 47.02  22.3w 505679    F51  C~1w3x      
2014 11  17.306598 02 53 00.946  +23 32 21.91  21.8R 505679    F51  C~1COj      
2014 11  17.318510 02 53 00.881  +23 32 21.60  21.4R 505679    F51  C~1COj      
2014 11  17.330498 02 53 00.833  +23 32 21.28  21.5R 505679    F51  C~1COj      
2014 11  17.342675 02 53 00.769  +23 32 21.14  21.9R 505679    F51  C~1COj      
2014 11  19.231440 02 52 52.10   +23 31 37.9   22.2R 505679    H01  C~1COj      
2014 11  19.250698 02 52 52.01   +23 31 37.5   22.7R 505679    H01  C~1COj      
2014 11  19.263751 02 52 51.96   +23 31 37.2   22.9R 505679    H01  C~1COj      
2014 11  19.277195 02 52 51.89   +23 31 37.0   22.9R 505679    H01  C~1COj      
2014 11  21.067697 02 52 43.74   +23 30 55.7   21.3R 505679    H01  C~1COj      
2014 11  21.086215 02 52 43.65   +23 30 55.2   21.9R 505679    H01  C~1COj      
2014 11  21.110392 02 52 43.54   +23 30 54.7   22.5R 505679    H01  C~1COj      
2014 11  21.120279 02 52 43.51   +23 30 54.4   21.5R 505679    H01  C~1COj      
2015 10  08.426645 03 01 07.666  +23 52 45.20  21.6R 505679    F51  C~1w3x      
2015 10  08.438457 03 01 07.598  +23 52 45.10  21.4R 505679    F51  C~1w3x      
2015 10  08.450229 03 01 07.549  +23 52 44.79  22.3R 505679    F51  C~1w3x      
2015 10  08.461986 03 01 07.512  +23 52 44.70  22.0R 505679    F51  C~1w3x      
2017 08  19.60543  03 12 53.796  +24 08 23.26        505679    568  C~2Mad      
2017 08  27.52668  03 12 52.678  +24 09 06.60        505679    568  C~2Mad      

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     0.18
  2   0.0001      0.00     0.02       0.00     0.11
  3   0.0002      0.00     0.06       0.00     0.10
  4   0.0713      0.00    -0.18       0.00     0.22
  5   0.0713      0.00     0.06       0.00    -0.09
  6   0.0714      0.00     0.12       0.00    -0.06
  7   0.0714      0.00    -0.08       0.00    -0.24
  8   2.0318      0.00     0.22       0.00    -0.15
  9   2.0319      0.00     0.17       0.00     0.02
 10   2.0319      0.00    -0.16       0.00     0.06
 11   2.0783      0.00     0.07       0.00    -0.10
 12   2.0783      0.00     0.50       0.00     0.05
 13   2.7767      0.00    -0.10       0.00     0.11
 14   2.7767      0.00    -0.10       0.00     0.12
 15   2.7767      0.00    -0.07       0.00     0.16
 16   2.7768      0.00    -0.09       0.00     0.26
 17   3.0476      0.00    -0.07       0.00    -0.16
 18   3.0476      0.00    -0.19       0.00    -0.14
 19   3.0608      0.00     0.10       0.00     0.01
 20   4.1093      0.00     0.16       0.00     0.04
 21   4.1093      0.00     0.02       0.00     0.00
 22   4.1093      0.00     0.14       0.00    -0.05
 23   4.1094      0.00     0.04       0.00     0.09
 24   4.1145      0.00     0.06       0.00    -0.03
 25   4.1146      0.00     0.05       0.00     0.01
 26   4.1146      0.00     0.21       0.00     0.01
 27   4.1147      0.00     0.10       0.00     0.12
 28   4.1196      0.00    -0.04       0.00     0.02
 29   4.1196      0.00    -0.13       0.00    -0.06
 30   4.1197      0.00    -0.12       0.00    -0.01
 31   4.1197      0.00     0.11       0.00    -0.08
 32   4.9994      0.00     0.32       0.00     0.01
 33   4.9994      0.00    -0.01       0.00     0.06
 34   4.9995      0.00    -0.06       0.00    -0.11
 35   4.9995      0.00     0.06       0.00    -0.06
 36   6.8644      0.00    -0.01       0.00     0.04
 37   6.8860      0.00     0.03       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.

505679    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        48.054    48.054    48.054
ecceobj         0.080     0.080     0.080
incobj         11.892    11.892    11.892
qmin           40.132    40.129    40.139
qmax           55.963    55.988    55.931
amean          47.792    47.796    47.798
amin           47.265    47.258    47.268
amax           48.393    48.389    48.392
emean           0.109     0.111     0.115
emin            0.018     0.065     0.065
emax            0.158     0.159     0.158
imean          12.841    12.851    12.743
imin           11.712    11.711    11.713
imax           14.064    13.644    13.606
excite_mean     0.249     0.250     0.250
fracstop        1.000     1.000     1.000
cjmean          3.070     3.070     3.070

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       167.5     162.3     178.5
kozaiamp        180.0     179.9     180.0