Orbit Fit and Astrometric record for 14TK115

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: 14TK115   
# Created Sat Dec  4 02:12:48 2021
# Orbit generated from Bernstein formalism
# Fitting     19 observations of     19
# Arc:   4.91y
# First observation: 2013/11/22
#  Last observation: 2018/10/20
Preliminary a, adot, b, bdot, g, gdot:
   0.000062   0.039323  -0.000005  -0.008047   0.032164   0.000000
# Chi-squared of fit:     6.96 DOF:     32 RMS:  0.11
# Min/Max residuals:    -0.40    0.22
# Exact a, adot, b, bdot, g, gdot:
  1.919235E-05  3.927291E-02 -3.544511E-06 -8.041659E-03  3.264151E-02  3.499053E-03
# Covariance matrix:
  5.4444E-13 -3.5530E-13 -4.2549E-14  5.2963E-14 -1.7218E-13 -1.3287E-12
 -3.5530E-13  3.5564E-13  4.6210E-14 -5.8741E-14  6.7303E-14  1.4626E-12
 -4.2549E-14  4.6210E-14  3.1411E-13 -9.8087E-14  3.8944E-14  2.3922E-13
  5.2963E-14 -5.8741E-14 -9.8087E-14  4.5995E-14 -4.1680E-14 -2.9635E-13
 -1.7218E-13  6.7303E-14  3.8944E-14 -4.1680E-14  8.2346E-13  1.1069E-12
 -1.3287E-12  1.4626E-12  2.3922E-13 -2.9635E-13  1.1069E-12  7.4474E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -3.365992   13.218358   -0.714818   -0.039738   -0.678030  2456618.639868
# Heliocentric elements and errors
Epoch:              2456610.5000  =  2013/11/14
Mean Anomaly:           21.03462 +/-     0.013
Argument of Peri:      162.18422 +/-     0.022
Long of Asc Node:      178.81450 +/-     0.001
Inclination:            11.98806 +/-     0.000
Eccentricity:         0.23043592 +/-    0.0001
Semi-Major Axis:     39.40755357 +/-    0.0060
Time of Perihelion: 2451330.9142 +/-       3.1
Perihelion:          30.32663779 +/-    0.0059
Aphelion:            48.48846934 +/-    0.0082
Period (y)              247.3873 +/-      0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           30.26957804 +/-    0.0008
Ecliptic Y            7.84731058 +/-    0.0002
Ecliptic Z           -1.79890999 +/-    0.0001
Ecliptic XDOT        -0.00051272 +/-    0.0000
Ecliptic YDOT         0.00326286 +/-    0.0000
Ecliptic ZDOT        -0.00069043 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   31.32193664 +/-    0.0008
Geocenter to KBO     30.63584126 +/-    0.0009
# Hcoef:  8.22

The following table shows the complete astrometric record for 14TK115. 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 (14TK115) followed by the observatory code and reference code for the source of the astrometry.

2013 11  22.13909  00 53 52.939  +02 06 59.30  22.7i 14TK115   W84  C~52UG      
2013 11  22.15022  00 53 52.899  +02 06 59.16  22.7z 14TK115   W84  C~52UG      
2014 10  02.29411  01 07 15.868  +03 02 43.72  24.1g 14TK115   W84  C~52UG      
2014 11  14.07483  01 03 25.994  +02 37 00.69  23.4r 14TK115   W84  C~52UG      
2014 11  14.07621  01 03 25.993  +02 37 00.74  23.0i 14TK115   W84  C~52UG      
2015 11  07.11042  01 12 56.923  +03 06 41.02  23.0r 14TK115   W84  C~52UG      
2015 11  07.11179  01 12 56.918  +03 06 41.04  23.2i 14TK115   W84  C~52UG      
2015 11  07.11317  01 12 56.908  +03 06 40.94  23.7g 14TK115   W84  C~52UG      
2016 10  23.21561  01 23 06.542  +03 40 22.32  22.8r 14TK115   W84  C~52UG      
2016 10  23.21697  01 23 06.543  +03 40 22.23  23.8g 14TK115   W84  C~52UG      
2016 10  29.19725  01 22 33.103  +03 36 47.67  24.4g 14TK115   W84  C~52UG      
2016 11  05.15757  01 21 55.613  +03 32 53.83  22.8r 14TK115   W84  C~52UG      
2016 11  05.15895  01 21 55.610  +03 32 53.66  22.7i 14TK115   W84  C~52UG      
2017 08  27.37486  01 36 32.605  +04 40 12.43  23.4i 14TK115   W84  C~52UG      
2017 08  27.38869  01 36 32.555  +04 40 12.23  23.4r 14TK115   W84  C~52UG      
2017 08  27.39145  01 36 32.548  +04 40 12.07  22.6z 14TK115   W84  C~52UG      
2018 09  11.36127  01 44 19.661  +04 56 05.37  22.7i 14TK115   W84  C~52UG      
2018 09  11.36265  01 44 19.656  +04 56 05.16  23.7r 14TK115   W84  C~52UG      
2018 10  20.17485  01 40 59.628  +04 31 51.37  22.7z 14TK115   W84  C~52UG      

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    -0.07
     2   0.0000     -0.61     0.01       0.10     0.02
     3   0.8601  12404.61    -0.11   -1565.75    -0.15
     4   0.9772   8622.06    -0.02   -1661.26    -0.07
     5   0.9772   8622.07     0.09   -1661.21    -0.01
     6   1.9575  17237.65     0.00   -3317.98     0.01
     7   1.9575  17237.59     0.05   -3317.94     0.06
     8   1.9575  17237.41    -0.01   -3317.97     0.02
     9   2.9188  26553.20    -0.13   -4964.92     0.10
    10   2.9188  26553.18    -0.03   -4965.01     0.01
    11   2.9351  25999.61     0.18   -4971.51     0.22
    12   2.9542  25381.99    -0.01   -4972.44     0.16
    13   2.9542  25381.88     0.01   -4972.58     0.02
    14   3.7625  39403.35     0.05   -6264.32    -0.17
    15   3.7625  39402.55     0.02   -6264.22     0.08
    16   3.7625  39402.39     0.01   -6264.33    -0.01
    17   4.8028  46537.72     0.04   -8071.83     0.17
    18   4.8028  46537.56    -0.01   -8072.00     0.01
    19   4.9091  43062.09    -0.11   -8286.99    -0.40

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.

14TK115    quality flag:3

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

axisobj        39.663    39.682    39.644
ecceobj         0.236     0.236     0.236
incobj         11.958    11.958    11.958
qmin           28.812    28.779    28.889
qmax           50.771    50.775    50.671
amean          39.456    39.456    39.456
amin           38.937    38.946    38.954
amax           40.058    40.039    40.049
emean           0.230     0.230     0.231
emin            0.197     0.195     0.196
emax            0.269     0.270     0.267
imean          11.860    11.867    11.794
imin            9.953     9.830    10.110
imax           13.584    13.560    13.613
excite_mean     0.309     0.309     0.309
fracstop        1.000     1.000     1.000
cjmean          2.943     2.943     2.943

libcent 0       179.7     179.9     180.0
libamp  0       109.6     109.2     111.2
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        96.2      93.9      98.8
kozaiamp         60.6      58.5      64.0