Orbit Fit and Astrometric record for 14GF54

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: 14GF54    
# Created Fri Oct 19 01:09:38 2018
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   81 observations of   81
# Arc:   7.81y
# First observation: 2010/04/20
#  Last observation: 2018/02/11
# Chi-squared of fit:    66.62 DOF:  156 RMS:  0.16
# Min/Max residuals:    -0.42    0.44
# Exact a, adot, b, bdot, g, gdot:
  1.980868E-05  3.881220E-02 -1.381669E-06 -3.291525E-03  3.217420E-02  3.199866E-04
# Covariance matrix:
  5.2851E-13 -2.3132E-13 -2.9395E-14  1.6426E-14 -1.0327E-13 -5.8965E-13
 -2.3132E-13  1.1856E-13  1.6360E-14 -9.3500E-15  7.3083E-14  3.3431E-13
 -2.9395E-14  1.6360E-14  1.7637E-13 -3.7537E-14  9.6287E-15  4.9524E-14
  1.6426E-14 -9.3500E-15 -3.7537E-14  9.1908E-15 -6.6100E-15 -2.8414E-14
 -1.0327E-13  7.3083E-14  9.6287E-15 -6.6100E-15  1.2594E-13  2.2942E-13
 -5.8965E-13  3.3431E-13  4.9524E-14 -2.8414E-14  2.2942E-13  1.0153E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -7.650107 -151.727801   -0.028125   -0.134052   -0.997662  2455306.937126
# Heliocentric elements and errors
Epoch:              2455306.5000  =  2010/04/20
Mean Anomaly:            1.83156 +/-     0.006
Argument of Peri:      234.19849 +/-     0.009
Long of Asc Node:      331.71651 +/-     0.001
Inclination:             8.85465 +/-     0.000
Eccentricity:         0.18805550 +/-    0.0000
Semi-Major Axis:     39.49847458 +/-    0.0019
Time of Perihelion: 2454845.1966 +/-       1.6
Perihelion:          32.07056916 +/-    0.0020
Aphelion:            46.92638001 +/-    0.0026
Period (y)              248.2440 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -27.99836683 +/-    0.0003
Ecliptic Y          -15.09513707 +/-    0.0002
Ecliptic Z           -4.13758203 +/-    0.0000
Ecliptic XDOT         0.00157535 +/-    0.0000
Ecliptic YDOT        -0.00289792 +/-    0.0000
Ecliptic ZDOT        -0.00028127 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   32.07633095 +/-    0.0003
Geocenter to KBO     31.08083344 +/-    0.0003
# Hcoef:  6.93

The following table shows the complete astrometric record for 14GF54. 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 (14GF54) followed by the observatory code and reference code for the source of the astrometry.

2010 04  20.43636  13 33 36.400  -17 59 28.70  22.3G 14GF54    F51  C~2kQ2      
2011 06  24.28097  13 37 16.689  -18 25 27.40  22.1G 14GF54    F51  C~2kQ2      
2012 04  15.41909  13 51 01.298  -19 57 57.33  21.8w 14GF54    F51  C~1vXO      
2012 04  15.43301  13 51 01.205  -19 57 57.01  21.9w 14GF54    F51  C~1vXO      
2012 04  15.44688  13 51 01.122  -19 57 56.87  22.0w 14GF54    F51  C~1vXO      
2012 04  15.46079  13 51 01.028  -19 57 56.31  21.8w 14GF54    F51  C~1vXO      
2012 05  17.35757  13 47 54.021  -19 40 51.80  22.5G 14GF54    F51  C~2kQ2      
2012 05  17.37170  13 47 53.954  -19 40 51.26  21.7G 14GF54    F51  C~2kQ2      
2012 05  17.38581  13 47 53.869  -19 40 51.04  21.9G 14GF54    F51  C~2kQ2      
2012 05  17.39990  13 47 53.805  -19 40 50.48  21.9G 14GF54    F51  C~2kQ2      
2013 04  12.48912  13 59 57.381  -20 55 00.34  21.9w 14GF54    F51  C~1vXO      
2013 04  12.50299  13 59 57.290  -20 54 59.95  22.0w 14GF54    F51  C~1vXO      
2013 04  12.51683  13 59 57.220  -20 54 59.73  21.9w 14GF54    F51  C~1vXO      
2013 04  12.53071  13 59 57.139  -20 54 59.46  22.2w 14GF54    F51  C~1vXO      
2013 05  05.38161  13 57 37.594  -20 43 41.09  22.0w 14GF54    F51  C~1vXO      
2013 05  05.39641  13 57 37.488  -20 43 40.77  21.9w 14GF54    F51  C~1vXO      
2013 05  05.41119  13 57 37.405  -20 43 40.12  21.7w 14GF54    F51  C~1vXO      
2013 05  08.04337  13 57 21.859  -20 42 14.49  22.1r 14GF54    807  C~1w1B      
2013 05  08.12770  13 57 21.344  -20 42 11.88        14GF54    807  C~1w1B      
2013 05  08.21494  13 57 20.830  -20 42 09.05  22.0r 14GF54    807  C~1w1B      
2013 05  18.39669  13 56 23.586  -20 36 32.66  22.2G 14GF54    F51  C~2kQ2      
2014 01  09.64664  14 11 49.492  -21 41 44.49  21.9w 14GF54    F51  C~1vXO      
2014 01  09.65073  14 11 49.525  -21 41 44.80  21.9w 14GF54    F51  C~1vXO      
2014 01  09.65483  14 11 49.514  -21 41 44.96  22.3w 14GF54    F51  C~1vXO      
2014 02  10.63340  14 12 35.521  -21 54 59.43  21.9G 14GF54    F51  C~2kQ2      
2014 03  25.55552  14 10 22.364  -21 54 47.62  23.0G 14GF54    F51  C~2kQ2      
2014 04  05.47323  14 09 22.549  -21 51 33.55  22.2w 14GF54    F51  C~1vXO      
2014 04  05.48512  14 09 22.476  -21 51 33.34  21.7w 14GF54    F51  C~1vXO      
2014 04  05.49702  14 09 22.412  -21 51 33.06  21.9w 14GF54    F51  C~1vXO      
2014 04  05.50892  14 09 22.332  -21 51 32.92  21.9w 14GF54    F51  C~1vXO      
2014 05  23.31390  14 04 37.927  -21 28 29.17  21.9w 14GF54    F51  C~1vXO      
2014 05  23.32386  14 04 37.872  -21 28 28.73  22.1w 14GF54    F51  C~1vXO      
2014 05  23.32518  14 04 37.865  -21 28 28.71  21.9w 14GF54    F51  C~1vXO      
2014 05  23.33513  14 04 37.809  -21 28 28.35  22.0w 14GF54    F51  C~1vXO      
2014 05  23.33645  14 04 37.814  -21 28 28.38  22.0w 14GF54    F51  C~1vXO      
2014 05  23.34641  14 04 37.740  -21 28 28.05  22.1w 14GF54    F51  C~1vXO      
2014 05  23.34773  14 04 37.755  -21 28 28.10  22.2w 14GF54    F51  C~1vXO      
2014 05  23.35770  14 04 37.696  -21 28 27.66  22.1w 14GF54    F51  C~1vXO      
2014 06  04.32125  14 03 40.106  -21 22 05.81  22.3G 14GF54    F51  C~2kQ2      
2014 06  13.36304  14 03 04.608  -21 17 35.60  21.6G 14GF54    F51  C~2kQ2      
2014 06  20.28950  14 02 42.749  -21 14 24.87  22.0w 14GF54    F51  C~1vXO      
2014 06  20.30142  14 02 42.687  -21 14 25.00  22.0w 14GF54    F51  C~1vXO      
2014 06  20.32535  14 02 42.642  -21 14 24.27  22.2w 14GF54    F51  C~1vXO      
2014 06  30.26892  14 02 20.343  -21 10 23.68  22.2w 14GF54    F51  C~1vXO      
2014 06  30.28082  14 02 20.330  -21 10 23.17  22.4w 14GF54    F51  C~1vXO      
2014 06  30.29270  14 02 20.297  -21 10 23.04  22.7w 14GF54    F51  C~1vXO      
2014 06  30.30457  14 02 20.259  -21 10 23.24  22.5w 14GF54    F51  C~1vXO      
2015 04  23.44313  14 16 23.031  -22 36 31.34  22.1w 14GF54    F51  C~1vXO      
2015 04  23.44379  14 16 23.010  -22 36 31.37  21.9w 14GF54    F51  C~1vXO      
2015 04  23.45466  14 16 22.967  -22 36 31.00  22.0w 14GF54    F51  C~1vXO      
2015 04  23.45532  14 16 22.958  -22 36 30.94  22.1w 14GF54    F51  C~1vXO      
2015 04  23.46619  14 16 22.871  -22 36 30.72  21.7w 14GF54    F51  C~1vXO      
2015 04  23.46684  14 16 22.871  -22 36 30.82  22.0w 14GF54    F51  C~1vXO      
2015 04  23.47773  14 16 22.814  -22 36 30.25  21.9w 14GF54    F51  C~1vXO      
2015 04  23.47840  14 16 22.797  -22 36 30.66  21.9w 14GF54    F51  C~1vXO      
2015 04  25.43196  14 16 10.619  -22 35 37.24  21.8G 14GF54    F51  C~2kQ2      
2015 05  19.37894  14 13 45.602  -22 23 29.91  21.6G 14GF54    F51  C~2kQ2      
2015 05  21.32523  14 13 34.709  -22 22 27.26  22.0w 14GF54    F51  C~1vXO      
2015 05  21.33734  14 13 34.631  -22 22 26.97  21.9w 14GF54    F51  C~1vXO      
2015 05  21.34954  14 13 34.566  -22 22 26.55  22.2w 14GF54    F51  C~1vXO      
2015 05  21.36167  14 13 34.496  -22 22 26.08  22.0w 14GF54    F51  C~1vXO      
2015 06  18.29690  14 11 28.121  -22 08 07.75  21.6G 14GF54    F51  C~2kQ2      
2015 06  18.30920  14 11 28.077  -22 08 07.72  22.0G 14GF54    F51  C~2kQ2      
2015 06  18.32148  14 11 28.019  -22 08 07.33  21.7G 14GF54    F51  C~2kQ2      
2015 06  18.33378  14 11 27.994  -22 08 06.99  22.3G 14GF54    F51  C~2kQ2      
2015 06  19.28393  14 11 24.942  -22 07 40.46  22.2w 14GF54    F51  C~1vXO      
2015 06  19.29583  14 11 24.903  -22 07 40.30  22.2w 14GF54    F51  C~1vXO      
2015 06  19.30773  14 11 24.865  -22 07 39.96  22.1w 14GF54    F51  C~1vXO      
2015 06  19.31961  14 11 24.816  -22 07 39.57  22.1w 14GF54    F51  C~1vXO      
2016 02  12.59788  14 29 53.185  -23 33 34.89  21.7G 14GF54    F51  C~2kQ2      
2016 02  14.63867  14 29 52.379  -23 34 07.37  22.0G 14GF54    F51  C~2kQ2      
2016 04  12.45422  14 26 18.766  -23 30 49.65  21.7G 14GF54    F51  C~2kQ2      
2016 04  12.46584  14 26 18.683  -23 30 49.62  21.6G 14GF54    F51  C~2kQ2      
2016 05  02.42350  14 24 15.060  -23 22 32.04  21.7G 14GF54    F51  C~2kQ2      
2017 03  23.58150  14 37 03.376  -24 23 20.87  22.3G 14GF54    F51  C~2kQ2      
2017 03  29.52204  14 36 34.804  -24 22 26.01  21.8G 14GF54    F51  C~2kQ2      
2017 04  25.42350  14 33 58.569  -24 14 15.19  21.7G 14GF54    F51  C~2kQ2      
2017 04  25.43454  14 33 58.491  -24 14 14.80  21.8G 14GF54    F51  C~2kQ2      
2017 04  25.44556  14 33 58.428  -24 14 14.65  21.6G 14GF54    F51  C~2kQ2      
2017 04  25.45661  14 33 58.364  -24 14 14.58  22.1G 14GF54    F51  C~2kQ2      
2018 02  11.60901  14 47 28.658  -25 03 38.55  21.8G 14GF54    F51  C~2kQ2      

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    -0.01
  2   1.1769      0.00     0.02       0.00    -0.03
  3   1.9876      0.00     0.27       0.00     0.14
  4   1.9877      0.00     0.18       0.00     0.06
  5   1.9877      0.00     0.23       0.00    -0.20
  6   1.9877      0.00     0.12       0.00    -0.03
  7   2.0751      0.00    -0.12       0.00    -0.03
  8   2.0751      0.00     0.01       0.00     0.04
  9   2.0752      0.00    -0.13       0.00    -0.21
 10   2.0752      0.00     0.04       0.00    -0.12
 11   2.9789      0.00     0.03       0.00    -0.00
 12   2.9790      0.00    -0.05       0.00     0.03
 13   2.9790      0.00     0.18       0.00    -0.12
 14   2.9790      0.00     0.25       0.00    -0.21
 15   3.0416      0.00     0.18       0.00     0.09
 16   3.0416      0.00    -0.06       0.00    -0.07
 17   3.0417      0.00     0.04       0.00     0.10
 18   3.0489      0.00    -0.02       0.00    -0.23
 19   3.0491      0.00    -0.21       0.00    -0.36
 20   3.0494      0.00    -0.11       0.00    -0.39
 21   3.0772      0.00     0.36       0.00     0.03
 22   3.7241      0.00    -0.11       0.00     0.26
 23   3.7241      0.00     0.17       0.00     0.09
 24   3.7241      0.00    -0.20       0.00     0.07
 25   3.8116      0.00     0.27       0.00     0.41
 26   3.9291      0.00     0.17       0.00    -0.33
 27   3.9590      0.00     0.12       0.00     0.04
 28   3.9591      0.00     0.07       0.00     0.01
 29   3.9591      0.00     0.16       0.00     0.04
 30   3.9591      0.00     0.02       0.00    -0.07
 31   4.0900      0.00     0.08       0.00    -0.08
 32   4.0900      0.00     0.05       0.00     0.03
 33   4.0900      0.00     0.06       0.00     0.01
 34   4.0901      0.00     0.02       0.00     0.05
 35   4.0901      0.00     0.20       0.00    -0.03
 36   4.0901      0.00    -0.11       0.00    -0.02
 37   4.0901      0.00     0.22       0.00    -0.11
 38   4.0901      0.00     0.14       0.00     0.00
 39   4.1229      0.00    -0.08       0.00    -0.05
 40   4.1476      0.00     0.44       0.00    -0.10
 41   4.1666      0.00     0.12       0.00     0.21
 42   4.1666      0.00    -0.29       0.00    -0.23
 43   4.1667      0.00     0.08       0.00    -0.14
 44   4.1939      0.00     0.22       0.00    -0.07
 45   4.1940      0.00     0.34       0.00     0.18
 46   4.1940      0.00     0.17       0.00     0.04
 47   4.1940      0.00    -0.08       0.00    -0.42
 48   5.0075      0.00     0.06       0.00     0.09
 49   5.0075      0.00    -0.19       0.00     0.04
 50   5.0076      0.00     0.20       0.00     0.12
 51   5.0076      0.00     0.13       0.00     0.16
 52   5.0076      0.00    -0.14       0.00     0.09
 53   5.0076      0.00    -0.08       0.00    -0.03
 54   5.0076      0.00     0.10       0.00     0.25
 55   5.0076      0.00    -0.09       0.00    -0.18
 56   5.0130      0.00    -0.11       0.00     0.15
 57   5.0786      0.00     0.09       0.00    -0.08
 58   5.0839      0.00     0.18       0.00     0.04
 59   5.0839      0.00     0.04       0.00    -0.06
 60   5.0840      0.00     0.10       0.00    -0.03
 61   5.0840      0.00     0.08       0.00     0.05
 62   5.1605      0.00    -0.03       0.00     0.22
 63   5.1605      0.00    -0.06       0.00    -0.09
 64   5.1605      0.00    -0.31       0.00    -0.04
 65   5.1606      0.00    -0.06       0.00    -0.05
 66   5.1632      0.00     0.14       0.00     0.28
 67   5.1632      0.00     0.15       0.00     0.12
 68   5.1632      0.00     0.16       0.00     0.13
 69   5.1633      0.00     0.02       0.00     0.19
 70   5.8156      0.00    -0.07       0.00    -0.41
 71   5.8212      0.00    -0.17       0.00     0.10
 72   5.9795      0.00     0.14       0.00     0.15
 73   5.9795      0.00    -0.04       0.00    -0.06
 74   6.0342      0.00     0.41       0.00    -0.15
 75   6.9244      0.00    -0.19       0.00    -0.17
 76   6.9407      0.00     0.13       0.00    -0.17
 77   7.0143      0.00     0.07       0.00    -0.04
 78   7.0144      0.00    -0.04       0.00     0.08
 79   7.0144      0.00     0.07       0.00    -0.04
 80   7.0144      0.00     0.17       0.00    -0.24
 81   7.8143      0.00     0.09       0.00    -0.20

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.

14GF54    quality flag:3

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

axisobj        39.351    39.351    39.351
ecceobj         0.185     0.185     0.185
incobj          8.854     8.854     8.854
qmin           31.245    31.244    31.245
qmax           48.331    48.336    48.326
amean          39.457    39.457    39.457
amin           38.953    38.954    38.951
amax           40.017    40.020    40.014
emean           0.191     0.191     0.191
emin            0.173     0.173     0.173
emax            0.209     0.209     0.209
imean           9.759     9.758     9.759
imin            9.156     9.155     9.157
imax           10.377    10.376    10.378
excite_mean     0.256     0.256     0.256
fracstop        1.000     1.000     1.000
cjmean          2.977     2.977     2.977

libcent 0       180.4     180.3     180.2
libamp  0       111.6     111.9     111.4
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       170.8     170.9     170.8
kozaiamp        180.0     180.0     180.0