Orbit Fit and Astrometric record for 14TD115

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: 14TD115   
# Created Fri Dec  3 02:12:44 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     19 observations of     19
# Arc:   5.13y
# First observation: 2013/10/11
#  Last observation: 2018/11/27
# Chi-squared of fit:     5.72 DOF:     32 RMS:  0.10
# Min/Max residuals:    -0.21    0.16
# Exact a, adot, b, bdot, g, gdot:
  1.695559E-05  2.742165E-02  3.102075E-06  4.688036E-03  2.615473E-02  4.093025E-03
# Covariance matrix:
  8.4727E-13 -6.6118E-13  9.2036E-14 -1.0133E-13 -1.8034E-13 -3.8435E-12
 -6.6118E-13  7.1046E-13 -1.0995E-13  1.2158E-13  1.8033E-13  4.6072E-12
  9.2036E-14 -1.0995E-13  3.8786E-13 -1.1239E-13 -3.1857E-14 -7.4377E-13
 -1.0133E-13  1.2158E-13 -1.1239E-13  5.1304E-14  3.0346E-14  8.2282E-13
 -1.8034E-13  1.8033E-13 -3.1857E-14  3.0346E-14  3.8000E-13  1.1905E-12
 -3.8435E-12  4.6072E-12 -7.4377E-13  8.2282E-13  1.1905E-12  3.1178E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -10.353418    6.021136   -0.202752   -0.175508   -0.961344  2456576.734588
# Heliocentric elements and errors
Epoch:              2456576.5000  =  2013/10/11
Mean Anomaly:           36.84249 +/-     0.017
Argument of Peri:      258.90719 +/-     0.031
Long of Asc Node:       52.02293 +/-     0.001
Inclination:            13.97237 +/-     0.000
Eccentricity:         0.20789586 +/-    0.0002
Semi-Major Axis:     45.90790699 +/-    0.0073
Time of Perihelion: 2444949.2718 +/-       6.0
Perihelion:          36.36384298 +/-    0.0113
Aphelion:            55.45197100 +/-    0.0132
Period (y)              311.0566 +/-      0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           38.35402597 +/-    0.0009
Ecliptic Y            4.25248662 +/-    0.0001
Ecliptic Z           -6.87131714 +/-    0.0002
Ecliptic XDOT         0.00019959 +/-    0.0000
Ecliptic YDOT         0.00290667 +/-    0.0000
Ecliptic ZDOT         0.00040589 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   39.19594837 +/-    0.0009
Geocenter to KBO     38.23395028 +/-    0.0009
# Hcoef:  7.61

The following table shows the complete astrometric record for 14TD115. 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 (14TD115) followed by the observatory code and reference code for the source of the astrometry.

2013 10  11.23381  00 38 33.501  -07 06 50.36  24.1g 14TD115   W84  C~52UG      
2014 10  03.29629  00 44 33.486  -06 11 05.93  24.1g 14TD115   W84  C~52UG      
2014 10  03.29765  00 44 33.479  -06 11 06.09  23.4r 14TD115   W84  C~52UG      
2014 10  03.29903  00 44 33.471  -06 11 06.05  23.2i 14TD115   W84  C~52UG      
2014 11  14.12837  00 41 29.731  -06 23 54.97  23.3i 14TD115   W84  C~52UG      
2015 12  05.08693  00 45 47.027  -05 32 53.81  23.0i 14TD115   W84  C~52UG      
2016 09  01.38805  00 57 19.566  -04 12 12.95  23.5r 14TD115   W84  C~52UG      
2016 09  01.38943  00 57 19.553  -04 12 13.10  23.4i 14TD115   W84  C~52UG      
2016 11  07.20621  00 52 20.531  -04 39 58.78  23.3r 14TD115   W84  C~52UG      
2017 08  28.36267  01 02 41.433  -03 19 05.58  23.5r 14TD115   W84  C~52UG      
2017 08  28.36404  01 02 41.426  -03 19 05.75  23.8i 14TD115   W84  C~52UG      
2017 08  28.36542  01 02 41.410  -03 19 05.56  24.3g 14TD115   W84  C~52UG      
2017 09  24.24772  01 00 52.491  -03 32 00.40  23.2i 14TD115   W84  C~52UG      
2017 09  24.24909  01 00 52.492  -03 32 00.49  23.5r 14TD115   W84  C~52UG      
2018 10  10.27473  01 04 43.864  -02 48 14.04  22.9i 14TD115   W84  C~52UG      
2018 10  10.27611  01 04 43.852  -02 48 14.26  24.0r 14TD115   W84  C~52UG      
2018 10  28.22230  01 03 19.631  -02 55 06.88  22.9i 14TD115   W84  C~52UG      
2018 11  27.09711  01 01 25.625  -03 01 02.22  24.0r 14TD115   W84  C~52UG      
2018 11  27.09849  01 01 25.627  -03 01 02.09  24.2g 14TD115   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    -0.05       0.00    -0.08
     2   0.9776      0.00     0.05       0.00     0.14
     3   0.9776      0.00     0.04       0.00     0.02
     4   0.9776      0.00     0.02       0.00     0.10
     5   1.0921      0.00    -0.03       0.00     0.00
     6   2.1488      0.00    -0.07       0.00    -0.05
     7   2.8916      0.00    -0.03       0.00     0.01
     8   2.8916      0.00    -0.14       0.00    -0.10
     9   3.0745      0.00     0.14       0.00     0.14
    10   3.8799      0.00     0.16       0.00    -0.08
    11   3.8799      0.00     0.12       0.00    -0.21
    12   3.8799      0.00    -0.04       0.00     0.02
    13   3.9535      0.00    -0.00       0.00    -0.07
    14   3.9535      0.00     0.11       0.00    -0.12
    15   4.9967      0.00     0.07       0.00     0.16
    16   4.9967      0.00    -0.01       0.00    -0.03
    17   5.0458      0.00    -0.21       0.00     0.09
    18   5.1276      0.00    -0.05       0.00    -0.02
    19   5.1276      0.00     0.04       0.00     0.11

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.

14TD115    quality flag:2

Type:       SCATNEAR  SCATEXTD  SCATNEAR

axisobj        46.223    46.223    46.223
ecceobj         0.213     0.213     0.213
incobj         13.968    13.968    13.968
qmin           35.861    35.861    35.861
qmax           56.692    56.466    56.574
amean          46.010    45.958    46.022
amin           45.579    45.554    45.591
amax           46.515    46.430    46.550
emean           0.200     0.200     0.201
emin            0.186     0.185     0.187
emax            0.219     0.217     0.218
imean          12.968    12.978    12.923
imin           12.282    12.352    12.291
imax           13.675    13.768    13.611
excite_mean     0.301     0.301     0.301
fracstop        1.000     1.000     1.000
cjmean          3.015     3.014     3.015

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       177.6     178.7     178.6
kozaiamp        180.0     180.0     180.0