Orbit Fit and Astrometric record for 13GY136

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: 13GY136   
# Created Fri May 29 01:11:13 2020
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   43 observations of   43
# Arc:   6.16y
# First observation: 2013/03/07
#  Last observation: 2019/05/06
# Chi-squared of fit:    15.16 DOF:   80 RMS:  0.10
# Min/Max residuals:    -0.33    0.32
# Exact a, adot, b, bdot, g, gdot:
  1.926049E-05  3.343574E-02  2.388690E-06  6.391742E-03  2.842707E-02 -7.156686E-03
# Covariance matrix:
  1.2313E-13 -7.1001E-14  6.1646E-15 -1.1844E-14  6.1950E-14 -3.0065E-13
 -7.1001E-14  1.2283E-13 -1.1771E-14  2.2839E-14  9.9117E-15  5.8761E-13
  6.1646E-15 -1.1771E-14  5.3107E-14 -2.0538E-14 -7.4996E-16 -6.5705E-14
 -1.1844E-14  2.2839E-14 -2.0538E-14  2.2471E-14  1.6308E-15  1.2747E-13
  6.1950E-14  9.9117E-15 -7.4996E-16  1.6308E-15  1.0129E-13  4.8062E-14
 -3.0065E-13  5.8761E-13 -6.5705E-14  1.2747E-13  4.8062E-14  3.2792E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.457263 -140.053588    0.791242   -0.004748   -0.599673  2456359.058558
# Heliocentric elements and errors
Epoch:              2456358.5000  =  2013/03/07
Mean Anomaly:          341.19878 +/-     0.004
Argument of Peri:       43.98559 +/-     0.009
Long of Asc Node:      221.01382 +/-     0.000
Inclination:            10.89380 +/-     0.000
Eccentricity:         0.41151402 +/-    0.0000
Semi-Major Axis:     55.31245288 +/-    0.0046
Time of Perihelion: 2464205.7304 +/-      17.7
Perihelion:          32.55060279 +/-    0.0038
Aphelion:            78.07430297 +/-    0.0070
Period (y)              411.3794 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -27.93446126 +/-    0.0003
Ecliptic Y          -22.36232382 +/-    0.0002
Ecliptic Z           -0.28064446 +/-    0.0000
Ecliptic XDOT         0.00258601 +/-    0.0000
Ecliptic YDOT        -0.00202871 +/-    0.0000
Ecliptic ZDOT         0.00062122 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   35.78403782 +/-    0.0003
Geocenter to KBO     35.17790203 +/-    0.0004
# Hcoef:  7.70

The following table shows the complete astrometric record for 13GY136. 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 (13GY136) followed by the observatory code and reference code for the source of the astrometry.

2013 03  07.55778  14 29 33.388  -15 13 52.42        13GY136   568  C~1XRW      
2013 03  07.56275  14 29 33.373  -15 13 52.59  23.2r 13GY136   568  C~1XRW      
2013 04  04.55875  14 27 48.028  -15 03 50.64  23.1r 13GY136   568  C~1XRW      
2013 04  07.41899  14 27 34.442  -15 02 34.48  23.2r 13GY136   568  C~1XRW      
2013 04  07.46275  14 27 34.230  -15 02 33.45  22.7r 13GY136   568  C~1XRW      
2013 04  07.46759  14 27 34.204  -15 02 33.29  22.9r 13GY136   568  C~1XRW      
2013 04  07.47260  14 27 34.169  -15 02 33.36  22.7r 13GY136   568  C~1XRW      
2013 04  07.47750  14 27 34.148  -15 02 33.04  23.0r 13GY136   568  C~1XRW      
2013 04  08.45133  14 27 29.439  -15 02 06.61  22.9r 13GY136   568  C~1XRW      
2013 04  08.49654  14 27 29.206  -15 02 05.34  22.7r 13GY136   568  C~1XRW      
2013 04  09.39790  14 27 24.807  -15 01 40.69  22.9r 13GY136   568  C~1XRW      
2013 04  09.44107  14 27 24.597  -15 01 39.49  22.9r 13GY136   568  C~1XRW      
2013 04  09.48468  14 27 24.371  -15 01 38.29  23.0r 13GY136   568  C~1XRW      
2013 05  11.48618  14 24 37.879  -14 46 02.65  23.2r 13GY136   568  C~1XRW      
2013 05  12.48847  14 24 32.727  -14 45 33.32  23.1r 13GY136   568  C~1XRW      
2013 06  12.38358  14 22 16.262  -14 32 09.80  23.1r 13GY136   568  C~1XRW      
2013 06  12.42921  14 22 16.099  -14 32 08.78  23.0r 13GY136   568  C~1XRW      
2013 07  06.26578  14 21 18.826  -14 25 40.34        13GY136   568  C~1XRW      
2013 07  07.29286  14 21 17.573  -14 25 29.59        13GY136   568  C~1XRW      
2013 08  02.27848  14 21 22.595  -14 24 01.55  23.3r 13GY136   568  C~1XRW      
2013 08  05.27930  14 21 27.817  -14 24 14.60  23.4r 13GY136   568  C~1XRW      
2014 02  01.63271  14 37 59.266  -15 32 37.19  23.2r 13GY136   568  C~1XRW      
2014 02  02.63050  14 38 00.516  -15 32 39.50  23.1r 13GY136   568  C~1XRW      
2014 02  03.57515  14 38 01.590  -15 32 41.04  23.1r 13GY136   568  C~1XRW      
2014 02  25.59980  14 37 57.747  -15 31 03.68  23.2r 13GY136   568  C~1XRW      
2014 02  28.54777  14 37 53.144  -15 30 31.34  23.2r 13GY136   568  C~1XRW      
2014 04  04.45085  14 35 57.684  -15 19 19.44  23.1r 13GY136   568  C~1XRW      
2014 04  04.49069  14 35 57.500  -15 19 18.40  22.9r 13GY136   568  C~1XRW      
2014 04  05.57974  14 35 52.422  -15 18 50.22  23.3r 13GY136   568  C~1XRW      
2014 04  30.13625  14 33 46.94   -15 07 21.9   23.1V 13GY136   W84  C~2fc7      
2014 05  01.12293  14 33 41.66   -15 06 53.0         13GY136   W84  C~2fc7      
2014 05  01.19265  14 33 41.27   -15 06 51.0         13GY136   W84  C~2fc7      
2014 05  22.42509  14 31 50.752  -14 56 40.85  23.1r 13GY136   568  C~1XRW      
2014 05  25.35772  14 31 36.546  -14 55 21.51  23.1r 13GY136   568  C~1XRW      
2014 06  26.34615  14 29 36.607  -14 43 40.05  22.9r 13GY136   568  C~1XRW      
2014 07  18.30910  14 29 05.946  -14 39 48.13  23.2r 13GY136   568  C~1XRW      
2015 01  26.61229  14 45 52.384  -15 46 03.34  23.5r 13GY136   568  C~1XRW      
2015 04  18.40695  14 43 07.856  -15 27 46.25  22.9r 13GY136   568  C~2KOF      
2015 04  20.42535  14 42 57.378  -15 26 50.11  22.8r 13GY136   568  C~2KOF      
2015 04  20.43040  14 42 57.351  -15 26 49.89  24.8u 13GY136   568  C~2KOF      
2015 04  20.46573  14 42 57.157  -15 26 48.98  22.9r 13GY136   568  C~2KOF      
2019 05  06.324460 15 16 08.99   -16 08 26.0   23.3G 13GY136   705  C~39oa      
2019 05  06.360750 15 16 08.77   -16 08 24.6   22.8G 13GY136   705  C~39oa      

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    -0.06       0.00     0.27
  2   0.0000      0.00    -0.08       0.00     0.02
  3   0.0767      0.00     0.03       0.00    -0.02
  4   0.0845      0.00     0.09       0.00     0.01
  5   0.0846      0.00     0.14       0.00    -0.14
  6   0.0846      0.00     0.11       0.00    -0.11
  7   0.0846      0.00    -0.05       0.00    -0.31
  8   0.0847      0.00    -0.00       0.00    -0.12
  9   0.0873      0.00     0.12       0.00    -0.09
 10   0.0874      0.00    -0.00       0.00    -0.04
 11   0.0899      0.00    -0.04       0.00    -0.03
 12   0.0900      0.00     0.05       0.00    -0.01
 13   0.0901      0.00    -0.06       0.00    -0.00
 14   0.1778      0.00     0.01       0.00    -0.06
 15   0.1805      0.00    -0.03       0.00    -0.08
 16   0.2651      0.00    -0.11       0.00     0.02
 17   0.2652      0.00    -0.14       0.00     0.06
 18   0.3305      0.00     0.04       0.00    -0.06
 19   0.3333      0.00     0.13       0.00    -0.07
 20   0.4044      0.00    -0.11       0.00    -0.08
 21   0.4127      0.00     0.03       0.00    -0.09
 22   0.9064      0.00    -0.06       0.00     0.05
 23   0.9092      0.00     0.00       0.00    -0.00
 24   0.9118      0.00    -0.05       0.00     0.09
 25   0.9721      0.00     0.11       0.00    -0.01
 26   0.9801      0.00     0.01       0.00     0.06
 27   1.0757      0.00     0.03       0.00     0.05
 28   1.0758      0.00     0.09       0.00     0.08
 29   1.0788      0.00    -0.18       0.00     0.32
 30   1.1460      0.00    -0.08       0.00     0.03
 31   1.1487      0.00    -0.02       0.00    -0.01
 32   1.1489      0.00    -0.17       0.00    -0.05
 33   1.2070      0.00     0.04       0.00     0.12
 34   1.2151      0.00     0.06       0.00    -0.08
 35   1.3026      0.00     0.08       0.00     0.01
 36   1.3628      0.00    -0.02       0.00     0.03
 37   1.8893      0.00     0.26       0.00     0.20
 38   2.1132      0.00     0.01       0.00     0.04
 39   2.1187      0.00     0.02       0.00     0.03
 40   2.1187      0.00     0.01       0.00     0.11
 41   2.1188      0.00    -0.07       0.00     0.04
 42   6.1623      0.00     0.09       0.00    -0.33
 43   6.1624      0.00    -0.13       0.00     0.12

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.

13GY136    quality flag:3

Type:         5:2EEE    5:2EEE    5:2EEE

axisobj        55.065    55.064    55.065
ecceobj         0.410     0.410     0.410
incobj         10.908    10.908    10.908
qmin           31.834    31.837    31.821
qmax           80.446    80.417    80.366
amean          55.462    55.462    55.462
amin           54.727    54.737    54.691
amax           56.405    56.425    56.408
emean           0.411     0.411     0.411
emin            0.397     0.397     0.397
emax            0.427     0.427     0.426
imean          11.987    11.994    11.979
imin           11.245    11.264    11.235
imax           12.560    12.558    12.558
excite_mean     0.460     0.460     0.460
fracstop        1.000     1.000     1.000
cjmean          2.963     2.963     2.963

libcent 0       179.3     180.2     180.0
libamp  0        90.1      88.7      89.9
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       107.1     106.3     108.0
kozaiamp         75.7      74.3      76.8