Orbit Fit and Astrometric record for 14GU53

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: 14GU53    
# Created Sun Oct 22 01:38:23 2017
# Orbit generated from Bernstein formalism
# Fitting   65 observations of   66
# Arc:   5.09y
# First observation: 2012/04/24
#  Last observation: 2017/05/26
Preliminary a, adot, b, bdot, g, gdot:
  -0.000734   0.026781  -0.000239   0.006877   0.025505   0.000000
# Chi-squared of fit:    34.13 DOF:  124 RMS:  0.13
# Min/Max residuals:    -0.69    0.25
# Exact a, adot, b, bdot, g, gdot:
  1.545138E-05  2.629691E-02  4.236905E-06  6.732568E-03  2.607014E-02 -3.615478E-03
# Covariance matrix:
  3.2670E-13 -2.0542E-13  3.8619E-14 -3.7090E-14 -6.1292E-14 -1.1304E-12
 -2.0542E-13  1.7143E-13 -4.0400E-14  3.8822E-14  6.4659E-14  1.1830E-12
  3.8619E-14 -4.0400E-14  2.0461E-13 -7.6529E-14 -1.4338E-14 -3.2748E-13
 -3.7090E-14  3.8822E-14 -7.6529E-14  3.5645E-14  1.7862E-14  3.1428E-13
 -6.1292E-14  6.4659E-14 -1.4338E-14  1.7862E-14  1.2730E-13  5.1352E-13
 -1.1304E-12  1.1830E-12 -3.2748E-13  3.1428E-13  5.1352E-13  9.5801E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   19.193676 -129.789182    0.272042    0.319473   -0.917836  2456042.039506
# Heliocentric elements and errors
Epoch:              2456040.5000  =  2012/04/23
Mean Anomaly:          311.65046 +/-     0.014
Argument of Peri:      118.44025 +/-     0.025
Long of Asc Node:      178.59779 +/-     0.001
Inclination:            23.51207 +/-     0.000
Eccentricity:         0.16830663 +/-    0.0001
Semi-Major Axis:     43.31200190 +/-    0.0028
Time of Perihelion: 2470023.5102 +/-       3.8
Perihelion:          36.02230487 +/-    0.0052
Aphelion:            50.60169892 +/-    0.0057
Period (y)              285.0497 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -24.01104464 +/-    0.0003
Ecliptic Y          -28.40729856 +/-    0.0004
Ecliptic Z           12.61088903 +/-    0.0002
Ecliptic XDOT         0.00249533 +/-    0.0000
Ecliptic YDOT        -0.00130959 +/-    0.0000
Ecliptic ZDOT         0.00054302 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   39.27517534 +/-    0.0003
Geocenter to KBO     38.35805929 +/-    0.0005
# Hcoef:  5.82

The following table shows the complete astrometric record for 14GU53. 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 (14GU53) followed by the observatory code and reference code for the source of the astrometry.

2012 04  24.53874  15 31 14.720  +00 44 35.41  21.8g 14GU53    F51  C~1vXL      
2012 04  24.54902  15 31 14.674  +00 44 35.68  22.0g 14GU53    F51  C~1vXL      
2012 04  24.55951  15 31 14.612  +00 44 36.10  21.8r 14GU53    F51  C~1vXL      
2012 04  24.56929  15 31 14.573  +00 44 36.49  21.5r 14GU53    F51  C~1vXL      
2014 04  08.50112  15 44 51.966  +00 34 03.25  21.7w 14GU53    F51  C~1vXL      
2014 04  08.51377  15 44 51.920  +00 34 03.65  21.6w 14GU53    F51  C~1vXL      
2014 04  08.52648  15 44 51.873  +00 34 04.21  21.9w 14GU53    F51  C~1vXL      
2014 04  08.53928  15 44 51.830  +00 34 04.55  21.6w 14GU53    F51  C~1vXL      
2014 04  24.50340  15 43 47.987  +00 43 00.29  22.0w 14GU53    F51  C~1vXL      
2014 04  24.51600  15 43 47.905  +00 43 00.47  21.9w 14GU53    F51  C~1vXL      
2014 04  24.52852  15 43 47.822  +00 43 01.15  22.0w 14GU53    F51  C~1vXL      
2014 04  24.54109  15 43 47.795  +00 43 01.51  22.0w 14GU53    F51  C~1vXL      
2014 05  04.40341  15 43 02.385  +00 47 49.15  21.8w 14GU53    F51  C~1vXL      
2014 05  04.41540  15 43 02.328  +00 47 49.38  21.6w 14GU53    F51  C~1vXL      
2014 05  04.42742  15 43 02.272  +00 47 49.69  21.7w 14GU53    F51  C~1vXL      
2014 05  04.43945  15 43 02.210  +00 47 50.03  21.7w 14GU53    F51  C~1vXL      
2014 05  28.33265  15 41 05.026  +00 56 11.89  21.6w 14GU53    F51  C~1vXL      
2014 05  28.34488  15 41 04.964  +00 56 12.41  21.7w 14GU53    F51  C~1vXL      
2014 05  28.35703  15 41 04.905  +00 56 12.41  21.6w 14GU53    F51  C~1vXL      
2014 05  28.36918  15 41 04.842  +00 56 12.50  21.6w 14GU53    F51  C~1vXL      
2014 07  01.36799  15 38 40.000  +00 58 19.78  21.8w 14GU53    F51  C~1vXL      
2014 07  01.38001  15 38 39.972  +00 58 19.68  21.7w 14GU53    F51  C~1vXL      
2014 07  01.39201  15 38 39.916  +00 58 19.73  21.7w 14GU53    F51  C~1vXL      
2014 07  01.40401  15 38 39.875  +00 58 19.49  21.7w 14GU53    F51  C~1vXL      
2015 02  17.59070  15 52 11.376  +00 03 24.03  21.8w 14GU53    F51  C~1vXL      
2015 02  17.60299  15 52 11.386  +00 03 24.33  21.8w 14GU53    F51  C~1vXL      
2015 02  17.61540  15 52 11.403  +00 03 24.86  21.7w 14GU53    F51  C~1vXL      
2015 02  17.62778  15 52 11.419  +00 03 25.18  21.5w 14GU53    F51  C~1vXM      
2015 02  18.58947  15 52 12.608  +00 03 55.12  21.9w 14GU53    F51  C~1vXM      
2015 02  18.60179  15 52 12.619  +00 03 55.54  22.1w 14GU53    F51  C~1vXM      
2015 02  18.61416  15 52 12.632  +00 03 56.19  22.2w 14GU53    F51  C~1vXM      
2015 02  18.62656  15 52 12.645  +00 03 56.59  22.0w 14GU53    F51  C~1vXM      
2015 03  25.54630  15 51 51.651  +00 24 34.88  21.7w 14GU53    F51  C~1vXM      
2015 03  25.55867  15 51 51.628  +00 24 35.43  21.7w 14GU53    F51  C~1vXM      
2015 03  25.57111  15 51 51.602  +00 24 35.76  21.7w 14GU53    F51  C~1vXM      
2015 03  25.60292  15 51 51.515  +00 24 37.03  21.7w 14GU53    F51  C~1vXM      
2015 03  25.61445  15 51 51.492  +00 24 37.57  21.9w 14GU53    F51  C~1vXM      
2015 03  27.53494  15 51 46.887  +00 25 49.19  21.9w 14GU53    F51  C~1vXM      
2015 03  27.54708  15 51 46.893  +00 25 49.30  21.6w 14GU53    F51  C~1vXM      
2015 03  27.55929  15 51 46.872  +00 25 49.88  21.7w 14GU53    F51  C~1vXM      
2015 03  27.57137  15 51 46.864  +00 25 50.26  22.2w 14GU53    F51  C~1vXM      
2015 04  04.47265  15 51 24.789  +00 30 41.36  21.4w 14GU53    F51  C~1vXM      
2015 04  04.48462  15 51 24.755  +00 30 41.95  21.6w 14GU53    F51  C~1vXM      
2015 04  04.49663  15 51 24.714  +00 30 42.48  21.5w 14GU53    F51  C~1vXM      
2015 04  12.40546  15 50 57.851  +00 35 24.70  21.7w 14GU53    F51  C~1vXM      
2015 04  12.44486  15 50 57.725  +00 35 26.20  21.8w 14GU53    F51  C~1vXM      
2015 04  12.45703  15 50 57.667  +00 35 26.65  21.8w 14GU53    F51  C~1vXM      
2015 04  12.46924  15 50 57.616  +00 35 27.09  21.6w 14GU53    F51  C~1vXM      
2015 04  13.55194  15 50 53.593  +00 36 04.55  21.1i 14GU53    F51  C~1vXM      
2015 04  13.56486  15 50 53.544  +00 36 05.19  21.3i 14GU53    F51  C~1vXM      
2015 04  13.57775  15 50 53.488  +00 36 05.55  21.1i 14GU53    F51  C~1vXM      
2015 04  13.59068  15 50 53.443  +00 36 06.02  21.1i 14GU53    F51  C~1vXM      
2015 05  11.44967  15 48 49.911  +00 49 58.86  21.6r 14GU53    F51  C~1vXM      
2015 05  11.46237  15 48 49.842  +00 49 59.30  21.6r 14GU53    F51  C~1vXM      
2015 05  11.47529  15 48 49.783  +00 49 59.44  21.5r 14GU53    F51  C~1vXM      
2015 05  11.48818  15 48 49.724  +00 49 59.53  21.7r 14GU53    F51  C~1vXM      
2015 05  13.39037  15 48 40.373  +00 50 44.13  21.5w 14GU53    F51  C~1vXM      
2015 05  13.40298  15 48 40.312  +00 50 44.58  21.4w 14GU53    F51  C~1vXM      
2015 05  13.41560  15 48 40.251  +00 50 45.01  21.6w 14GU53    F51  C~1vXM      
2015 05  13.42827  15 48 40.186  +00 50 45.27  21.7w 14GU53    F51  C~1vXM      
2015 06  06.43706  15 46 42.204  +00 57 14.22  21.2i 14GU53    F51  C~1vXM      
2015 06  06.44966  15 46 42.159  +00 57 14.52  21.3i 14GU53    F51  C~1vXM      
2015 06  06.46223  15 46 42.096  +00 57 14.49  21.0i 14GU53    F51  C~1vXM      
2017 05  26.31953  16 00 23.62   +00 53 32.8   21.2R 14GU53    G37  C~2Gid      
2017 05  26.36473  16 00 23.38   +00 53 33.5         14GU53    G37  C~2Gid      
2017 05  26.39978  16 00 23.21   +00 53 34.1         14GU53    G37  C~2Gid      

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     0.10       0.00    -0.03
  2   0.0000     -0.74     0.13       0.09    -0.07
  3   0.0001     -1.74    -0.09       0.25    -0.03
  4   0.0001     -2.41    -0.03       0.48     0.08
  5   1.9547  12028.24     0.10    2516.58     0.10
  6   1.9548  12027.47     0.11    2516.79     0.05
  7   1.9548  12026.64     0.07    2517.15     0.15
  8   1.9548  12025.93     0.14    2517.31     0.05
  9   1.9985  10960.02     0.09    2790.97     0.10
 10   1.9986  10958.78    -0.23    2790.83    -0.20
 11   1.9986  10957.40    -0.69    2791.17    -0.02
 12   1.9986  10956.92    -0.25    2791.42     0.06
 13   2.0256  10223.01     0.01    2895.57     0.10
 14   2.0257  10222.12     0.05    2895.58     0.02
 15   2.0257  10221.22     0.08    2895.66     0.01
 16   2.0257  10220.24     0.03    2895.75     0.01
 17   2.0912   8388.90     0.03    2931.88    -0.07
 18   2.0912   8387.86    -0.07    2932.15     0.25
 19   2.0912   8387.01    -0.01    2931.92     0.09
 20   2.0913   8386.07    -0.03    2931.77    -0.00
 21   2.1843   6250.16    -0.07    2499.77    -0.05
 22   2.1844   6249.78     0.13    2499.57    -0.02
 23   2.1844   6248.96    -0.12    2499.40     0.06
 24   2.1844   6248.42    -0.08    2499.01    -0.09
 25   2.8174  18909.95     0.12    2423.39     0.01
 26   2.8174  18910.02     0.06    2423.72    -0.09
 27   2.8175  18910.13     0.06    2424.30     0.06
 28   2.8175  18910.29     0.09    2424.67    -0.00
 29   2.8201  18919.99     0.12    2458.32    -0.10
 30   2.8202  18920.04     0.07    2458.77    -0.08
 31   2.8202  18920.07    -0.01    2459.46     0.18
 32   2.8202  18920.15    -0.02    2459.89     0.18
 33   2.9158  18295.13    -0.04    3581.10    -0.06
 34   2.9159  18294.65     0.03    3581.54     0.05
 35   2.9159  18294.18     0.11    3581.76    -0.06
 36   2.9160  18292.58    -0.07    3582.66    -0.02
 37   2.9160  18292.11    -0.03    3583.10     0.10
 38   2.9213  18206.39    -0.67    3634.85     0.04
 39   2.9213  18206.45    -0.04    3634.97    -0.15
 40   2.9213  18206.00     0.07    3635.46     0.01
 41   2.9214  18205.78 (   0.42)   3635.79 (   0.03)
 42   2.9430  17808.37     0.07    3833.14    -0.16
 43   2.9430  17807.72     0.09    3833.58     0.01
 44   2.9431  17806.98     0.02    3833.93     0.09
 45   2.9647  17342.02    -0.09    4004.12    -0.18
 46   2.9648  17339.80     0.19    4005.09     0.03
 47   2.9649  17338.83     0.00    4005.31     0.00
 48   2.9649  17337.97    -0.07    4005.54    -0.00
 49   2.9679  17269.59     0.02    4026.36    -0.18
 50   2.9679  17268.71    -0.03    4026.79     0.01
 51   2.9679  17267.80    -0.10    4026.92    -0.10
 52   2.9680  17267.02    -0.04    4027.20    -0.06
 53   3.0442  15250.25     0.05    4358.39     0.04
 54   3.0443  15249.13    -0.06    4358.55     0.15
 55   3.0443  15248.23     0.06    4358.46     0.01
 56   3.0444  15247.35     0.19    4358.32    -0.18
 57   3.0496  15099.54     0.07    4365.49    -0.27
 58   3.0496  15098.53     0.06    4365.69    -0.10
 59   3.0496  15097.53     0.06    4365.88     0.04
 60   3.0497  15096.52     0.05    4365.88     0.01
 61   3.1154  13277.34    -0.00    4288.14    -0.12
 62   3.1154  13276.61     0.18    4288.26     0.12
 63   3.1155  13275.70     0.18    4287.98    -0.03
 64   5.0863  25360.28     0.01    7259.07     0.08
 65   5.0865  25356.56    -0.13    7258.81     0.04
 66   5.0865  25353.90    -0.02    7258.73     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.

14GU53    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        43.215    43.223    43.208
ecceobj         0.169     0.169     0.169
incobj         23.546    23.546    23.546
qmin           35.567    35.521    35.543
qmax           51.908    51.938    51.909
amean          43.538    43.548    43.532
amin           43.165    43.166    43.160
amax           43.955    43.963    43.944
emean           0.162     0.162     0.162
emin            0.144     0.144     0.145
emax            0.181     0.182     0.182
imean          23.422    23.427    23.419
imin           22.882    22.885    22.885
imax           23.974    23.986    23.962
excite_mean     0.429     0.430     0.429
fracstop        1.000     1.000     1.000
cjmean          2.869     2.869     2.869

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       189.5     187.9     190.6
kozaiamp        180.0     180.0     180.0