Orbit Fit and Astrometric record for 14GK54

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: 14GK54    
# Created Mon Dec  6 02:12:23 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     68 observations of     68
# Arc:   6.25y
# First observation: 2011/04/14
#  Last observation: 2017/07/15
# Chi-squared of fit:    77.15 DOF:    130 RMS:  0.19
# Min/Max residuals:    -0.59    0.56
# Exact a, adot, b, bdot, g, gdot:
  1.937119E-05  4.674919E-02  7.577050E-06  1.965098E-02  3.751215E-02 -6.621921E-03
# Covariance matrix:
  4.4843E-13 -2.1759E-13  1.2652E-13 -7.8579E-14 -8.2419E-14 -4.9021E-13
 -2.1759E-13  1.2838E-13 -8.3283E-14  5.1652E-14  6.3335E-14  3.2220E-13
  1.2652E-13 -8.3283E-14  2.2594E-13 -7.1294E-14 -4.4217E-14 -2.2385E-13
 -7.8579E-14  5.1652E-14 -7.1294E-14  3.0763E-14  2.6986E-14  1.3885E-13
 -8.2419E-14  6.3335E-14 -4.4217E-14  2.6986E-14  8.8920E-14  1.6820E-13
 -4.9021E-13  3.2220E-13 -2.2385E-13  1.3885E-13  1.6820E-13  8.6613E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   -8.047525 -143.195696    0.224119   -0.137433   -0.971641  2455665.991346
# Heliocentric elements and errors
Epoch:              2455666.5000  =  2011/04/15
Mean Anomaly:          343.87802 +/-     0.002
Argument of Peri:       13.16479 +/-     0.004
Long of Asc Node:      234.13388 +/-     0.000
Inclination:            24.04277 +/-     0.000
Eccentricity:         0.32420610 +/-    0.0000
Semi-Major Axis:     39.31189092 +/-    0.0017
Time of Perihelion: 2459698.3113 +/-       5.6
Perihelion:          26.56673611 +/-    0.0015
Aphelion:            52.05704572 +/-    0.0024
Period (y)              246.4870 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -22.05018180 +/-    0.0002
Ecliptic Y          -16.22207103 +/-    0.0001
Ecliptic Z           -3.73173499 +/-    0.0000
Ecliptic XDOT         0.00226473 +/-    0.0000
Ecliptic YDOT        -0.00255959 +/-    0.0000
Ecliptic ZDOT         0.00148780 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   27.62781627 +/-    0.0002
Geocenter to KBO     26.65812857 +/-    0.0002
# Hcoef:  8.17

The following table shows the complete astrometric record for 14GK54. 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 (14GK54) followed by the observatory code and reference code for the source of the astrometry.

2011 04  14.49058  14 06 34.244  -21 22 13.83  22.6G 14GK54    F51  C~2rY2      
2012 04  15.42700  14 18 53.866  -21 10 43.68  22.3w 14GK54    F51  C~1vXO      
2012 04  15.44093  14 18 53.771  -21 10 42.97  22.4w 14GK54    F51  C~1vXO      
2012 04  15.45478  14 18 53.697  -21 10 42.51  22.5w 14GK54    F51  C~1vXO      
2012 04  15.46871  14 18 53.570  -21 10 41.75  22.2w 14GK54    F51  C~1vXO      
2013 04  12.49439  14 31 53.318  -20 58 50.04  21.6G 14GK54    F51  C~2rY2      
2013 05  05.38780  14 29 16.218  -20 42 44.12  22.5G 14GK54    F51  C~2rY2      
2013 05  05.40264  14 29 16.119  -20 42 43.34  22.4G 14GK54    F51  C~2rY2      
2013 05  05.41741  14 29 15.996  -20 42 43.00  22.4G 14GK54    F51  C~2rY2      
2013 05  05.43220  14 29 15.894  -20 42 41.90  22.3G 14GK54    F51  C~2rY2      
2013 05  18.38969  14 27 48.266  -20 32 40.46  22.9G 14GK54    F51  C~2rY2      
2014 04  05.49499  14 45 22.374  -20 45 22.36  22.4w 14GK54    F51  C~1vXO      
2014 04  05.50690  14 45 22.295  -20 45 22.21  22.5w 14GK54    F51  C~1vXO      
2014 04  05.51879  14 45 22.220  -20 45 21.87  22.1w 14GK54    F51  C~1vXO      
2014 05  23.32122  14 40 00.362  -20 12 29.61  22.4w 14GK54    F51  C~1vXO      
2014 05  23.33248  14 40 00.282  -20 12 29.10  22.5w 14GK54    F51  C~1vXO      
2014 05  23.34376  14 40 00.216  -20 12 28.58  22.4w 14GK54    F51  C~1vXO      
2014 05  23.35505  14 40 00.139  -20 12 28.07  22.1w 14GK54    F51  C~1vXO      
2014 06  04.31694  14 38 47.235  -20 03 38.00  23.0G 14GK54    F51  C~2rY2      
2014 06  20.33062  14 37 28.952  -19 52 40.85  23.3G 14GK54    F51  C~2rY2      
2014 06  30.27420  14 36 54.599  -19 46 41.90  22.5w 14GK54    F51  C~1vXO      
2014 06  30.29797  14 36 54.510  -19 46 41.15  22.4w 14GK54    F51  C~1vXO      
2014 06  30.30985  14 36 54.475  -19 46 40.77  22.5w 14GK54    F51  C~1vXO      
2015 01  21.65834  14 59 18.118  -20 34 56.31  21.7G 14GK54    F51  C~2rY2      
2015 01  21.66164  14 59 18.128  -20 34 56.26  21.7G 14GK54    F51  C~2rY2      
2015 01  21.66493  14 59 18.154  -20 34 56.50  21.8G 14GK54    F51  C~2rY2      
2015 01  23.64761  14 59 26.921  -20 35 24.29  22.6G 14GK54    F51  C~2rY2      
2015 02  23.65087  15 00 26.325  -20 37 25.22  22.8G 14GK54    F51  C~2rY2      
2015 02  24.63458  15 00 25.762  -20 37 18.44  22.5w 14GK54    F51  C~1vXO      
2015 02  24.64556  15 00 25.742  -20 37 18.56  22.6w 14GK54    F51  C~1vXO      
2015 02  24.65104  15 00 25.753  -20 37 18.42  22.4w 14GK54    F51  C~1vXO      
2015 05  19.38366  14 53 16.782  -19 55 21.22  22.1G 14GK54    F51  C~2rY2      
2015 05  19.39593  14 53 16.706  -19 55 20.74  22.0G 14GK54    F51  C~2rY2      
2015 05  19.40822  14 53 16.628  -19 55 20.31  22.2G 14GK54    F51  C~2rY2      
2015 05  19.42058  14 53 16.501  -19 55 19.91  22.9G 14GK54    F51  C~2rY2      
2015 05  19.98851  14 53 12.64   -19 54 54.4         14GK54    W84  C~2i4l      
2015 05  20.99505  14 53 05.78   -19 54 10.8   22.9V 14GK54    W84  C~2i4l      
2015 05  22.00117  14 52 58.94   -19 53 27.3         14GK54    W84  C~2i4l      
2015 06  19.28855  14 50 14.231  -19 34 03.78  22.4G 14GK54    F51  C~2rY2      
2015 06  19.30043  14 50 14.186  -19 34 03.17  22.2G 14GK54    F51  C~2rY2      
2015 06  19.31235  14 50 14.131  -19 34 02.91  22.4G 14GK54    F51  C~2rY2      
2015 06  19.32423  14 50 14.070  -19 34 02.18  22.5G 14GK54    F51  C~2rY2      
2016 03  07.58604  15 12 48.797  -20 10 05.08  22.5G 14GK54    F51  C~2rY2      
2016 03  17.57454  15 12 22.471  -20 07 04.44  22.0G 14GK54    F51  C~2rY2      
2016 03  17.58577  15 12 22.410  -20 07 03.63  22.1G 14GK54    F51  C~2rY2      
2016 03  17.59697  15 12 22.360  -20 07 03.44  22.5G 14GK54    F51  C~2rY2      
2016 05  07.44680  15 07 29.423  -19 39 09.06  22.5G 14GK54    F51  C~2rY2      
2016 05  07.45790  15 07 29.337  -19 39 08.77  22.5G 14GK54    F51  C~2rY2      
2016 05  07.46900  15 07 29.258  -19 39 08.15  22.1G 14GK54    F51  C~2rY2      
2016 05  07.48007  15 07 29.168  -19 39 07.91  22.5G 14GK54    F51  C~2rY2      
2017 02  05.65039  15 25 04.448  -19 45 02.85  22.4G 14GK54    F51  C~2rY2      
2017 02  05.65386  15 25 04.466  -19 45 03.03  22.5G 14GK54    F51  C~2rY2      
2017 02  05.65732  15 25 04.468  -19 45 02.97  23.3G 14GK54    F51  C~2rY2      
2017 02  05.66077  15 25 04.470  -19 45 02.96  22.9G 14GK54    F51  C~2rY2      
2017 03  25.56987  15 24 41.685  -19 35 28.61  22.5G 14GK54    F51  C~2rY2      
2017 03  25.58168  15 24 41.629  -19 35 28.33  22.9G 14GK54    F51  C~2rY2      
2017 03  27.59940  15 24 33.426  -19 34 36.25  22.3G 14GK54    F51  C~2rY2      
2017 03  27.60930  15 24 33.382  -19 34 36.13  22.6G 14GK54    F51  C~2rY2      
2017 03  27.61933  15 24 33.339  -19 34 35.82  22.7G 14GK54    F51  C~2rY2      
2017 03  27.62934  15 24 33.304  -19 34 35.12  22.1G 14GK54    F51  C~2rY2      
2017 05  19.41279  15 19 02.597  -19 03 34.34  21.9G 14GK54    F51  C~2rY2      
2017 05  19.42418  15 19 02.528  -19 03 33.49  22.0G 14GK54    F51  C~2rY2      
2017 05  19.43556  15 19 02.433  -19 03 33.19  22.5G 14GK54    F51  C~2rY2      
2017 05  19.44699  15 19 02.364  -19 03 32.35  21.6G 14GK54    F51  C~2rY2      
2017 07  15.32216  15 14 07.147  -18 31 53.89  23.2G 14GK54    F51  C~2rY2      
2017 07  15.33409  15 14 07.132  -18 31 53.57  22.5G 14GK54    F51  C~2rY2      
2017 07  15.34608  15 14 07.089  -18 31 53.14  22.8G 14GK54    F51  C~2rY2      
2017 07  15.35800  15 14 07.059  -18 31 52.79  22.3G 14GK54    F51  C~2rY2      

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     0.12       0.00     0.11
     2   1.0046      0.00    -0.07       0.00    -0.18
     3   1.0047      0.00    -0.06       0.00    -0.03
     4   1.0047      0.00     0.26       0.00    -0.14
     5   1.0047      0.00    -0.21       0.00     0.06
     6   1.9959      0.00    -0.19       0.00    -0.21
     7   2.0586      0.00    -0.04       0.00    -0.06
     8   2.0586      0.00     0.05       0.00     0.05
     9   2.0587      0.00    -0.23       0.00    -0.29
    10   2.0587      0.00    -0.19       0.00     0.14
    11   2.0942      0.00     0.24       0.00     0.56
    12   2.9761      0.00     0.20       0.00     0.32
    13   2.9761      0.00     0.10       0.00     0.08
    14   2.9761      0.00     0.05       0.00     0.04
    15   3.1070      0.00     0.13       0.00    -0.01
    16   3.1070      0.00     0.04       0.00    -0.01
    17   3.1071      0.00     0.17       0.00     0.01
    18   3.1071      0.00     0.14       0.00     0.01
    19   3.1398      0.00    -0.02       0.00    -0.22
    20   3.1837      0.00    -0.15       0.00    -0.30
    21   3.2109      0.00     0.28       0.00     0.02
    22   3.2110      0.00     0.01       0.00    -0.03
    23   3.2110      0.00     0.01       0.00    -0.05
    24   3.7732      0.00     0.23       0.00    -0.25
    25   3.7732      0.00     0.16       0.00    -0.15
    26   3.7732      0.00     0.33       0.00    -0.35
    27   3.7787      0.00    -0.11       0.00     0.04
    28   3.8635      0.00     0.01       0.00    -0.01
    29   3.8662      0.00    -0.09       0.00     0.23
    30   3.8663      0.00    -0.26       0.00     0.03
    31   3.8663      0.00    -0.03       0.00     0.13
    32   4.0955      0.00    -0.15       0.00     0.10
    33   4.0956      0.00    -0.00       0.00     0.04
    34   4.0956      0.00     0.12       0.00    -0.06
    35   4.0956      0.00    -0.49       0.00    -0.20
    36   4.0972      0.00    -0.37       0.00     0.35
    37   4.0999      0.00    -0.28       0.00     0.29
    38   4.1027      0.00    -0.55       0.00     0.18
    39   4.1801      0.00     0.01       0.00    -0.05
    40   4.1802      0.00     0.17       0.00     0.12
    41   4.1802      0.00     0.19       0.00    -0.07
    42   4.1802      0.00     0.12       0.00     0.22
    43   4.8983      0.00     0.04       0.00     0.25
    44   4.9256      0.00     0.53       0.00    -0.59
    45   4.9257      0.00     0.19       0.00    -0.01
    46   4.9257      0.00     0.03       0.00    -0.06
    47   5.0649      0.00     0.02       0.00    -0.02
    48   5.0649      0.00    -0.06       0.00    -0.18
    49   5.0650      0.00    -0.04       0.00    -0.02
    50   5.0650      0.00    -0.19       0.00    -0.23
    51   5.8156      0.00     0.01       0.00     0.14
    52   5.8156      0.00     0.12       0.00    -0.03
    53   5.8157      0.00    -0.01       0.00     0.04
    54   5.8157      0.00    -0.14       0.00     0.05
    55   5.9468      0.00     0.11       0.00    -0.01
    56   5.9469      0.00    -0.01       0.00    -0.03
    57   5.9524      0.00    -0.13       0.00     0.06
    58   5.9524      0.00    -0.14       0.00    -0.08
    59   5.9524      0.00    -0.14       0.00    -0.04
    60   5.9525      0.00    -0.02       0.00     0.40
    61   6.0970      0.00    -0.24       0.00    -0.36
    62   6.0970      0.00    -0.04       0.00     0.04
    63   6.0970      0.00    -0.23       0.00    -0.12
    64   6.0971      0.00    -0.02       0.00     0.27
    65   6.2528      0.00     0.15       0.00    -0.12
    66   6.2528      0.00     0.33       0.00    -0.07
    67   6.2529      0.00     0.09       0.00     0.09
    68   6.2529      0.00     0.05       0.00     0.18

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.

14GK54    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.198    39.197    39.198
ecceobj         0.323     0.323     0.323
incobj         24.055    24.055    24.055
qmin           24.364    24.364    24.365
qmax           55.111    55.112    55.110
amean          39.453    39.453    39.453
amin           39.052    39.053    39.052
amax           39.948    39.948    39.971
emean           0.350     0.351     0.350
emin            0.318     0.319     0.319
emax            0.382     0.382     0.382
imean          23.973    23.969    23.971
imin           22.572    22.571    22.572
imax           25.171    25.170    25.172
excite_mean     0.537     0.537     0.537
fracstop        1.000     1.000     1.000
cjmean          2.722     2.722     2.722

libcent 0       180.1     179.9     180.1
libamp  0        44.2      44.4      44.1
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       166.6     166.5     166.5
kozaiamp        180.0     180.0     180.0