Orbit Fit and Astrometric record for 14TF86

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: 14TF86    
# Created Fri Nov 22 02:10:03 2024
# Orbit generated from Bernstein formalism
# Fitting     63 observations of     65
# Arc:   4.10y
# First observation: 2014/10/01
#  Last observation: 2018/11/07
Preliminary a, adot, b, bdot, g, gdot:
   0.000157   0.021336  -0.000157  -0.004038   0.024618   0.000000
# Chi-squared of fit:    28.75 DOF:    120 RMS:  0.12
# Min/Max residuals:    -0.24    0.31
# Exact a, adot, b, bdot, g, gdot:
  1.453020E-05  2.144851E-02 -2.991404E-06 -4.074788E-03  2.354278E-02  6.207441E-04
# Covariance matrix:
  6.0120E-14 -5.1475E-14 -7.7444E-15  7.5545E-15  4.8774E-14 -4.0443E-13
 -5.1475E-14  1.3517E-13  6.5907E-15 -2.1964E-14 -4.0936E-15  1.5573E-12
 -7.7444E-15  6.5907E-15  5.2882E-14 -1.8727E-14 -5.9574E-14  2.9345E-14
  7.5545E-15 -2.1964E-14 -1.8727E-14  1.5997E-14  1.3327E-14 -2.6574E-13
  4.8774E-14 -4.0936E-15 -5.9574E-14  1.3327E-14  4.8306E-13  3.8627E-13
 -4.0443E-13  1.5573E-12  2.9345E-14 -2.6574E-13  3.8627E-13  2.0049E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -30.983206  -45.541792   -0.802235   -0.310283   -0.517030  2456931.580639
# Heliocentric elements and errors
Epoch:              2456930.5000  =  2014/09/30
Mean Anomaly:          143.41885 +/-     0.130
Argument of Peri:      104.81686 +/-     0.125
Long of Asc Node:       65.12791 +/-     0.001
Inclination:            32.05682 +/-     0.000
Eccentricity:         0.08116503 +/-    0.0001
Semi-Major Axis:     40.28754553 +/-    0.0046
Time of Perihelion: 2419720.6102 +/-      33.1
Perihelion:          37.01760569 +/-    0.0062
Aphelion:            43.55748537 +/-    0.0067
Period (y)              255.7198 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           26.49777357 +/-    0.0008
Ecliptic Y          -25.85858876 +/-    0.0008
Ecliptic Z          -21.86614643 +/-    0.0006
Ecliptic XDOT         0.00164822 +/-    0.0000
Ecliptic YDOT         0.00187229 +/-    0.0000
Ecliptic ZDOT        -0.00044331 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.99915088 +/-    0.0007
Geocenter to KBO     42.47586741 +/-    0.0013
# Hcoef:  6.59

The following table shows the complete astrometric record for 14TF86. 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 (14TF86) followed by the observatory code and reference code for the source of the astrometry.

2014 10  01.079861 21 57 09.78   -45 42 06.8   22.9i 14TF86    W84  C~2Bno      
2014 10  01.07987  21 57 09.781  -45 42 06.86  22.6i 14TF86    W84  C~4yUi      
2014 10  01.07987  21 57 09.78   -45 42 06.9   22.8i 14TF86    W84  C~3cnz      
2014 10  01.08208  21 57 09.776  -45 42 06.65  22.7z 14TF86    W84  C~4yUi      
2014 10  14.113275 21 56 19.62   -45 37 38.1   22.9r 14TF86    W84  C~2Bno      
2014 10  14.11328  21 56 19.660  -45 37 38.25  22.5r 14TF86    W84  C~4yUi      
2014 10  14.11328  21 56 19.65   -45 37 38.3   22.8r 14TF86    W84  C~3cnz      
2014 10  14.11466  21 56 19.622  -45 37 38.55  22.9i 14TF86    W84  C~4yUi      
2014 10  14.11466  21 56 19.62   -45 37 38.6   23.2i 14TF86    W84  C~3cnz      
2014 10  14.116019 21 56 19.60   -45 37 38.2   23.4g 14TF86    W84  C~2Bno      
2014 10  14.11602  21 56 19.604  -45 37 38.31  23.4g 14TF86    W84  C~4yUi      
2014 10  14.11602  21 56 19.61   -45 37 38.3   23.7g 14TF86    W84  C~3cnz      
2014 10  21.15766  21 55 59.849  -45 34 16.78  21.8r 14TF86    W84  C~4yUi      
2014 10  21.15766  21 55 59.83   -45 34 16.9   22.6r 14TF86    W84  C~3cnz      
2014 10  21.15904  21 55 59.854  -45 34 16.78  23.3g 14TF86    W84  C~4yUi      
2014 10  21.160417 21 55 59.82   -45 34 16.7   22.4i 14TF86    W84  C~2Bno      
2014 10  21.16042  21 55 59.826  -45 34 16.76  22.2i 14TF86    W84  C~4yUi      
2014 10  21.16042  21 55 59.82   -45 34 16.8   22.8i 14TF86    W84  C~3cnz      
2014 10  22.15960  21 55 57.488  -45 33 44.94  24.2g 14TF86    W84  C~4yUi      
2014 10  26.069468 21 55 49.39   -45 31 34.5   23.0r 14TF86    W84  C~2Bno      
2014 10  26.06947  21 55 49.389  -45 31 34.77  23.3r 14TF86    W84  C~4yUi      
2014 10  26.06947  21 55 49.39   -45 31 34.8   23.3r 14TF86    W84  C~3cnz      
2014 10  31.12965  21 55 41.633  -45 28 30.68  22.2z 14TF86    W84  C~4yUi      
2014 10  31.12965  21 55 41.63   -45 28 30.7   22.6z 14TF86    W84  C~3cnz      
2014 10  31.129653 21 55 41.62   -45 28 30.4   22.3z 14TF86    W84  C~2Bno      
2014 11  04.029201 21 55 37.84   -45 25 57.7   22.2z 14TF86    W84  C~2Bno      
2014 11  04.02921  21 55 37.823  -45 25 57.86  22.3z 14TF86    W84  C~4yUi      
2014 11  04.02921  21 55 37.82   -45 25 57.9   22.6z 14TF86    W84  C~3cnz      
2015 09  21.09627  22 04 56.509  -45 26 24.18  22.4z 14TF86    W84  C~4yUi      
2015 10  16.038275 22 03 08.07   -45 19 54.0   23.2r 14TF86    W84  C~2Bno      
2015 10  16.03828  22 03 08.078  -45 19 54.20  23.1r 14TF86    W84  C~4yUi      
2015 10  16.03828  22 03 08.08   -45 19 54.2   23.2r 14TF86    W84  C~3cnz      
2015 10  16.039109 22 03 08.04   -45 19 53.8   22.4z 14TF86    W84  C~352R      
2015 10  16.03964  22 03 08.051  -45 19 54.19  23.0z 14TF86    W84  C~4yUi      
2015 10  16.04101  22 03 08.081  -45 19 54.01  24.5g 14TF86    W84  C~4yUi      
2015 10  16.063495 22 03 07.99   -45 19 53.4   23.0i 14TF86    W84  C~2Bno      
2015 10  16.06350  22 03 07.993  -45 19 53.58  22.9i 14TF86    W84  C~4yUi      
2015 10  16.06350  22 03 07.99   -45 19 53.6   23.0i 14TF86    W84  C~3cnz      
2016 09  11.12596  22 12 40.386  -45 07 08.41  22.3z 14TF86    W84  C~4yUi      
2016 09  25.11638  22 11 23.287  -45 06 52.97  23.0i 14TF86    W84  C~4yUi      
2016 09  25.11638  22 11 23.29   -45 06 53.0   23.0i 14TF86    W84  C~3cnz      
2016 09  25.11776  22 11 23.276  -45 06 52.98  23.0r 14TF86    W84  C~4yUi      
2016 09  25.11776  22 11 23.28   -45 06 53.0   23.2r 14TF86    W84  C~3cnz      
2016 09  25.118611 22 11 23.28   -45 06 52.8   23.9g 14TF86    W84  C~352R      
2016 09  25.11914  22 11 23.284  -45 06 53.09  23.9g 14TF86    W84  C~4yUi      
2016 10  02.07951  22 10 49.563  -45 05 38.70  23.2r 14TF86    W84  C~4yUi      
2016 10  02.07951  22 10 49.56   -45 05 38.7   23.2r 14TF86    W84  C~3cnz      
2016 10  02.080347 22 10 49.52   -45 05 38.5   23.7g 14TF86    W84  C~352R      
2016 10  02.08088  22 10 49.542  -45 05 38.80  24.0g 14TF86    W84  C~4yUi      
2017 08  25.21569  22 21 11.661  -44 42 10.13  22.9i 14TF86    W84  C~4yUi      
2017 08  25.21847  22 21 11.643  -44 42 10.24  23.9g 14TF86    W84  C~4yUi      
2017 08  25.21983  22 21 11.634  -44 42 10.15  22.3r 14TF86    W84  C~4yUi      
2017 08  25.22121  22 21 11.613  -44 42 10.32  22.4i 14TF86    W84  C~4yUi      
2017 08  25.22259  22 21 11.599  -44 42 10.30  23.7g 14TF86    W84  C~4yUi      
2017 09  02.15950  22 20 22.850  -44 44 35.99  22.4z 14TF86    W84  C~4yUi      
2017 10  17.19167  22 16 35.299  -44 40 36.21  22.5i 14TF86    W84  C~4yUi      
2017 10  28.02046  22 16 05.410  -44 35 15.36  22.5z 14TF86    W84  C~4yUi      
2017 11  16.09174  22 15 45.692  -44 22 31.46  23.3r 14TF86    W84  C~4yUi      
2018 09  15.20304  22 25 48.479  -44 24 20.04  22.7r 14TF86    W84  C~4yUi      
2018 09  15.20443  22 25 48.463  -44 24 20.04  22.4i 14TF86    W84  C~4yUi      
2018 09  15.20943  22 25 48.434  -44 24 19.90  23.5g 14TF86    W84  C~4yUi      
2018 09  18.19808  22 25 31.427  -44 24 30.82  22.7z 14TF86    W84  C~4yUi      
2018 10  28.16094  22 22 42.816  -44 13 59.65  22.9i 14TF86    W84  C~4yUi      
2018 11  06.04593  22 22 26.347  -44 08 40.35  23.3r 14TF86    W84  C~4yUi      
2018 11  07.06373  22 22 25.078  -44 08 00.44  23.8g 14TF86    W84  C~4yUi      

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    -0.03       0.00     0.05
     2   0.0000     -0.04    -0.07      -0.09    -0.04
     3   0.0000     -0.01    -0.04      -0.06    -0.01
     4   0.0000      0.02     0.08       0.15     0.13
     5   0.0357   -375.58    -0.06     455.66     0.31
     6   0.0357   -375.37     0.15     455.36    -0.00
     7   0.0357   -375.25     0.27     455.36     0.00
     8   0.0357   -375.78    -0.23     455.20    -0.21
     9   0.0357   -375.74    -0.19     455.24    -0.17
    10   0.0357   -375.81    -0.23     455.65     0.19
    11   0.0357   -375.75    -0.17     455.52     0.06
    12   0.0357   -375.82    -0.24     455.54     0.08
    13   0.0550   -486.61    -0.03     722.67    -0.08
    14   0.0550   -486.38     0.20     722.70    -0.05
    15   0.0550   -486.33     0.26     722.68    -0.12
    16   0.0550   -486.63    -0.02     722.90     0.04
    17   0.0550   -486.67    -0.06     722.81    -0.05
    18   0.0550   -486.59     0.02     722.82    -0.04
    19   0.0577   -496.56     0.28     761.75     0.10
    20   0.0684   -523.14     0.17     915.20     0.19
    21   0.0684   -523.26     0.05     914.93    -0.08
    22   0.0684   -523.26     0.06     914.96    -0.05
    23   0.0823   -525.52    -0.07    1116.29    -0.07
    24   0.0823   -525.48    -0.03    1116.29    -0.07
    25   0.0823   -525.49    -0.05    1116.60     0.25
    26   0.0929   -501.78     0.21    1272.61     0.10
    27   0.0929   -502.06    -0.07    1272.51    -0.01
    28   0.0929   -502.01    -0.02    1272.54     0.02
    29   0.9720   4857.25    -0.10   -1149.86    -0.20
    30   1.0403   3982.52     0.01    -317.21     0.15
    31   1.0403   3982.51     0.01    -317.43    -0.07
    32   1.0403   3982.53     0.03    -317.43    -0.08
    33   1.0403   3982.31 (  -0.17)   -316.89 (   0.43)
    34   1.0403   3982.25    -0.22    -317.30     0.01
    35   1.0403   3982.62     0.17    -317.27    -0.01
    36   1.0403   3982.00     0.02    -316.31     0.08
    37   1.0403   3981.91    -0.06    -316.49    -0.10
    38   1.0403   3981.95    -0.03    -316.49    -0.10
    39   1.9467   9778.96    -0.04   -2223.45    -0.15
    40   1.9850   9051.64    -0.03   -1849.28    -0.10
    41   1.9850   9051.62    -0.05   -1849.23    -0.06
    42   1.9850   9051.54    -0.06   -1849.23    -0.09
    43   1.9850   9051.51    -0.09   -1849.19    -0.06
    44   1.9850   9051.63     0.07   -1849.05     0.06
    45   1.9850   9051.54     0.00   -1849.33    -0.24
    46   2.0041   8762.63     0.08   -1625.71     0.11
    47   2.0041   8762.66     0.11   -1625.72     0.09
    48   2.0041   8762.33 (  -0.18)  -1625.34 (   0.44)
    49   2.0041   8762.41    -0.08   -1625.71     0.05
    50   2.8998  15319.54     0.11   -3361.32    -0.04
    51   2.8998  15319.32     0.08   -3361.33    -0.08
    52   2.8998  15319.28     0.13   -3361.20     0.03
    53   2.8998  15319.00    -0.05   -3361.25    -0.03
    54   2.8998  15318.87    -0.08   -3361.16     0.04
    55   2.9215  14788.20     0.02   -3247.97    -0.03
    56   3.0448  12732.68    -0.13   -1918.52    -0.07
    57   3.0744  12592.76    -0.11   -1487.13    -0.01
    58   3.1267  12749.75     0.05    -708.77     0.09
    59   3.9565  18454.71    -0.12   -3819.23     0.05
    60   3.9565  18454.56    -0.19   -3819.15     0.10
    61   3.9565  18454.35    -0.11   -3818.88     0.24
    62   3.9647  18287.66     0.21   -3740.88     0.05
    63   4.0741  16982.70    -0.01   -2321.49     0.04
    64   4.0985  16976.01     0.02   -1955.13     0.08
    65   4.1013  16982.69     0.25   -1913.33    -0.23

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.

14TF86    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        40.451    40.465    40.437
ecceobj         0.075     0.075     0.076
incobj         32.100    32.100    32.099
qmin           36.749    36.775    36.743
qmax           44.383    44.444    44.397
amean          40.488    40.509    40.473
amin           40.183    40.191    40.163
amax           40.808    40.843    40.787
emean           0.076     0.076     0.076
emin            0.064     0.064     0.064
emax            0.088     0.088     0.089
imean          30.743    30.746    30.743
imin           30.387    30.390    30.387
imax           31.055    31.062    31.051
excite_mean     0.517     0.517     0.517
fracstop        1.000     1.000     1.000
cjmean          2.731     2.731     2.731

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       178.0     178.5     178.0
kozaiamp        179.9     180.0     180.0