Orbit Fit and Astrometric record for 14TT115

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: 14TT115   
# Created Tue Dec  7 02:12:51 2021
# Orbit generated from Bernstein formalism
# Fitting     18 observations of     18
# Arc:   2.98y
# First observation: 2014/10/02
#  Last observation: 2017/09/24
Preliminary a, adot, b, bdot, g, gdot:
  -0.000001   0.014948  -0.000000   0.000583   0.018776   0.000000
# Chi-squared of fit:     4.73 DOF:     30 RMS:  0.09
# Min/Max residuals:    -0.15    0.24
# Exact a, adot, b, bdot, g, gdot:
  1.275240E-05  1.501497E-02  2.666688E-07  5.865245E-04  1.888585E-02  1.232745E-03
# Covariance matrix:
  3.6991E-13 -2.0045E-13 -2.4260E-15 -2.0322E-15  1.3329E-13 -1.1808E-12
 -2.0045E-13  4.9798E-13 -1.2462E-14  2.0493E-14  3.5774E-13  9.9935E-12
 -2.4260E-15 -1.2462E-14  2.8707E-13 -1.2163E-13 -2.4290E-14 -3.3939E-13
 -2.0322E-15  2.0493E-14 -1.2163E-13  7.2654E-14  2.2409E-14  4.9816E-13
  1.3329E-13  3.5774E-13 -2.4290E-14  2.2409E-14  8.8258E-13  1.0376E-11
 -1.1808E-12  9.9935E-12 -3.3939E-13  4.9816E-13  1.0376E-11  2.4104E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
   -8.391831   13.009246    0.074777   -0.145834   -0.989716  2456932.807258
# Heliocentric elements and errors
Epoch:              2456930.5000  =  2014/09/30
Mean Anomaly:          145.21370 +/-     0.298
Argument of Peri:      130.99758 +/-     0.295
Long of Asc Node:       87.93085 +/-     0.007
Inclination:             8.52349 +/-     0.000
Eccentricity:         0.15338472 +/-    0.0004
Semi-Major Axis:     47.63213696 +/-    0.0071
Time of Perihelion: 2408496.1348 +/-      98.8
Perihelion:          40.32609513 +/-    0.0207
Aphelion:            54.93817878 +/-    0.0214
Period (y)              328.7444 +/-      0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           52.02725135 +/-    0.0025
Ecliptic Y           11.94609876 +/-    0.0006
Ecliptic Z           -7.72760998 +/-    0.0004
Ecliptic XDOT        -0.00031024 +/-    0.0000
Ecliptic YDOT         0.00215878 +/-    0.0000
Ecliptic ZDOT         0.00005815 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   53.93755755 +/-    0.0025
Geocenter to KBO     52.94968786 +/-    0.0026
# Hcoef:  6.02

The following table shows the complete astrometric record for 14TT115. 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 (14TT115) followed by the observatory code and reference code for the source of the astrometry.

2014 10  02.30648  01 00 54.477  -02 35 50.08  23.3r 14TT115   W84  C~55SO      
2014 10  03.30462  01 00 50.892  -02 36 12.78  22.7i 14TT115   W84  C~55SO      
2014 11  16.15773  00 58 23.186  -02 48 56.77  23.5r 14TT115   W84  C~55SO      
2014 11  17.16263  00 58 20.447  -02 49 06.45  22.7z 14TT115   W84  C~55SO      
2015 09  04.27280  01 05 33.568  -02 03 00.96  23.2i 14TT115   W84  C~55SO      
2015 10  07.18457  01 03 44.585  -02 15 45.39  23.0r 14TT115   W84  C~55SO      
2015 12  05.05359  01 00 46.086  -02 29 08.89  23.5r 14TT115   W84  C~55SO      
2016 09  01.38391  01 08 44.748  -01 40 30.09  24.5g 14TT115   W84  C~55SO      
2016 10  23.16797  01 05 50.426  -01 59 43.83  23.5r 14TT115   W84  C~55SO      
2016 10  29.22883  01 05 29.394  -02 01 32.14  22.8i 14TT115   W84  C~55SO      
2016 11  05.21596  01 05 06.205  -02 03 22.60  23.2i 14TT115   W84  C~55SO      
2016 11  05.21735  01 05 06.205  -02 03 22.41  24.0r 14TT115   W84  C~55SO      
2016 11  06.12744  01 05 03.304  -02 03 35.53  23.3z 14TT115   W84  C~55SO      
2017 08  28.29502  01 12 00.403  -01 17 15.82  22.8r 14TT115   W84  C~55SO      
2017 08  28.36681  01 12 00.220  -01 17 17.37  22.9i 14TT115   W84  C~55SO      
2017 09  18.35085  01 10 59.693  -01 25 11.59  23.2r 14TT115   W84  C~55SO      
2017 09  24.25193  01 10 39.945  -01 27 29.14  23.4i 14TT115   W84  C~55SO      
2017 09  24.29404  01 10 39.796  -01 27 30.27  22.4z 14TT115   W84  C~55SO      

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    -0.04       0.00     0.05
     2   0.0027    -58.32    -0.06      -0.08     0.10
     3   0.1228  -2394.64     0.02     153.78    -0.13
     4   0.1255  -2436.22     0.05     160.75    -0.03
     5   0.9226   4620.08    -0.03     190.12    -0.02
     6   1.0127   2817.23     0.10     120.53    -0.14
     7   1.1738     39.75    -0.02     418.55     0.11
     8   1.9167   7788.93     0.10     319.97    -0.07
     9   2.0585   4929.72    -0.11     273.53     0.24
    10   2.0751   4596.95     0.06     296.30     0.03
    11   2.0942   4233.57    -0.15     329.64    -0.11
    12   2.0942   4233.64    -0.01     329.81     0.06
    13   2.0967   4188.45     0.08     334.62     0.01
    14   2.9048  11040.95    -0.04     462.34     0.08
    15   2.9050  11037.81    -0.11     461.98     0.09
    16   2.9625  10014.47    -0.02     378.50    -0.15
    17   2.9786   9687.41     0.13     367.08     0.00
    18   2.9787   9684.91     0.04     366.91    -0.12

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.

14TT115    quality flag:3

Type:           2:1E      2:1E      2:1E

axisobj        48.018    48.040    47.996
ecceobj         0.146     0.147     0.146
incobj          8.525     8.525     8.525
qmin           37.935    39.173    39.553
qmax           58.410    57.062    56.781
amean          47.796    47.796    47.796
amin           47.262    47.295    47.283
amax           48.428    48.375    48.365
emean           0.178     0.150     0.147
emin            0.144     0.118     0.116
emax            0.206     0.180     0.175
imean           6.350     7.136     7.187
imin            5.601     5.934     6.812
imax            7.107     8.083     7.513
excite_mean     0.210     0.195     0.193
fracstop        1.000     1.000     1.000
cjmean          3.094     3.102     3.103

libcent 0       181.9     179.4     178.8
libamp  0       138.8     136.0     139.4
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       199.2     138.9     173.2
kozaiamp        179.8     180.0     179.9