Orbit Fit and Astrometric record for 14TA115

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: 14TA115   
# Created Fri Dec  3 02:12:44 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     14 observations of     14
# Arc:   8.15y
# First observation: 2013/09/10
#  Last observation: 2021/11/05
# Chi-squared of fit:     7.33 DOF:     22 RMS:  0.13
# Min/Max residuals:    -0.30    0.22
# Exact a, adot, b, bdot, g, gdot:
  1.581871E-05  2.707636E-02  1.123834E-06  1.579263E-03  2.611385E-02  2.450516E-03
# Covariance matrix:
  4.9936E-13 -2.3222E-13  1.4681E-14 -1.3557E-14  2.2015E-13 -1.0008E-12
 -2.3222E-13  9.3924E-13 -3.4076E-14  5.3475E-14  1.2970E-12  3.9278E-12
  1.4681E-14 -3.4076E-14  1.9243E-13 -3.4132E-14 -3.3845E-14 -1.4857E-13
 -1.3557E-14  5.3475E-14 -3.4132E-14  1.5038E-14  7.0990E-14  2.2767E-13
  2.2015E-13  1.2970E-12 -3.3845E-14  7.0990E-14  2.7569E-12  5.2048E-12
 -1.0008E-12  3.9278E-12 -1.4857E-13  2.2767E-13  5.2048E-12  1.6725E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   -6.244723   23.343631    0.590149   -0.088754   -0.812048  2456545.871828
# Heliocentric elements and errors
Epoch:              2456546.5000  =  2013/09/11
Mean Anomaly:           38.82853 +/-     0.072
Argument of Peri:      250.31213 +/-     0.096
Long of Asc Node:       84.64711 +/-     0.002
Inclination:             6.90613 +/-     0.000
Eccentricity:         0.10673357 +/-    0.0001
Semi-Major Axis:     42.42280990 +/-    0.0087
Time of Perihelion: 2445661.0585 +/-      20.5
Perihelion:          37.89487178 +/-    0.0091
Aphelion:            46.95074802 +/-    0.0107
Period (y)              276.3168 +/-      0.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           35.93401763 +/-    0.0022
Ecliptic Y           14.86857635 +/-    0.0010
Ecliptic Z           -4.16540928 +/-    0.0003
Ecliptic XDOT        -0.00088000 +/-    0.0000
Ecliptic YDOT         0.00271357 +/-    0.0000
Ecliptic ZDOT         0.00013678 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   39.11106270 +/-    0.0021
Geocenter to KBO     38.29382306 +/-    0.0024
# Hcoef:  7.90

The following table shows the complete astrometric record for 14TA115. 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 (14TA115) followed by the observatory code and reference code for the source of the astrometry.

2013 09  10.37105  01 35 38.607  +03 15 39.19  24.5g 14TA115   W84  C~52UG      
2013 09  10.37398  01 35 38.568  +03 15 39.27  23.3r 14TA115   W84  C~52UG      
2014 10  02.28973  01 39 47.865  +03 44 38.24  24.2g 14TA115   W84  C~52UG      
2014 10  02.29109  01 39 47.846  +03 44 38.10  24.3r 14TA115   W84  C~52UG      
2014 10  02.32026  01 39 47.711  +03 44 37.23  23.3i 14TA115   W84  C~52UG      
2014 10  21.26080  01 38 17.037  +03 35 48.22  24.1r 14TA115   W84  C~52UG      
2014 10  28.21863  01 37 43.243  +03 32 47.78  23.4i 14TA115   W84  C~52UG      
2014 10  29.23311  01 37 38.366  +03 32 22.44  24.4g 14TA115   W84  C~52UG      
2014 11  15.05397  01 36 21.585  +03 26 12.93  23.6r 14TA115   W84  C~52UG      
2015 11  18.16871  01 41 47.241  +04 04 08.71  23.7i 14TA115   W84  C~52UG      
2016 11  03.16885  01 48 28.680  +04 47 36.38  23.5r 14TA115   W84  C~52UG      
2021 11  05.268050 02 16 17.947  +07 54 18.01  23.4G 14TA115   G37  C~5BUi      
2021 11  05.323520 02 16 17.670  +07 54 16.70        14TA115   G37  C~5BUi      
2021 11  05.382640 02 16 17.382  +07 54 15.39        14TA115   G37  C~5BUi      

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     0.01
     2   0.0000      0.00    -0.30       0.00     0.17
     3   1.0593      0.00     0.22       0.00     0.13
     4   1.0593      0.00     0.03       0.00     0.03
     5   1.0594      0.00     0.05       0.00    -0.00
     6   1.1113      0.00     0.09       0.00    -0.17
     7   1.1303      0.00    -0.19       0.00    -0.11
     8   1.1331      0.00    -0.17       0.00    -0.15
     9   1.1791      0.00     0.18       0.00    -0.01
    10   2.1870      0.00     0.15       0.00     0.08
    11   3.1480      0.00    -0.18       0.00     0.02
    12   8.1530      0.00    -0.02       0.00     0.02
    13   8.1532      0.00    -0.04       0.00    -0.03
    14   8.1534      0.00     0.05       0.00     0.02

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.

14TA115    quality flag:3

Type:          5:3EE     5:3EE     5:3EE

axisobj        42.675    42.675    42.675
ecceobj         0.113     0.113     0.113
incobj          6.909     6.909     6.909
qmin           37.169    37.168    37.171
qmax           47.732    47.733    47.732
amean          42.330    42.330    42.330
amin           41.949    41.949    41.950
amax           42.740    42.740    42.740
emean           0.097     0.097     0.097
emin            0.075     0.075     0.075
emax            0.119     0.119     0.119
imean           5.429     5.429     5.429
imin            4.482     4.482     4.483
imax            6.549     6.548     6.550
excite_mean     0.136     0.136     0.136
fracstop        1.000     1.000     1.000
cjmean          3.060     3.060     3.060

libcent 0       179.4     179.4     179.3
libamp  0        72.8      72.8      72.7
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       180.8     180.8     181.1
kozaiamp        180.0     179.9     180.0