Orbit Fit and Astrometric record for 14TA116

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: 14TA116   
# Created Thu Dec  9 02:12:43 2021
# Orbit generated from Bernstein formalism
# Fitting     12 observations of     12
# Arc:   2.16y
# First observation: 2014/10/03
#  Last observation: 2016/12/02
Preliminary a, adot, b, bdot, g, gdot:
   0.000013   0.028989   0.000001  -0.006976   0.027106   0.000000
# Chi-squared of fit:     8.79 DOF:     18 RMS:  0.15
# Min/Max residuals:    -0.42    0.40
# Exact a, adot, b, bdot, g, gdot:
  1.689165E-05  2.892335E-02 -4.139859E-06 -6.955794E-03  2.700029E-02 -3.962550E-04
# Covariance matrix:
  1.2954E-12  5.1058E-12  1.8314E-13 -1.5364E-12  4.6573E-12  9.9068E-11
  5.1058E-12  2.9968E-11  1.0045E-12 -8.7945E-12  2.4978E-11  5.6879E-10
  1.8314E-13  1.0045E-12  3.3953E-13 -4.4225E-13  8.6585E-13  1.9040E-11
 -1.5364E-12 -8.7945E-12 -4.4225E-13  2.7117E-12 -7.3145E-12 -1.6776E-10
  4.6573E-12  2.4978E-11  8.6585E-13 -7.3145E-12  2.1940E-11  4.7187E-10
  9.9068E-11  5.6879E-10  1.9040E-11 -1.6776E-10  4.7187E-10  1.0855E-08
#      lat0       lon0       xBary       yBary       zBary        JD0
  -23.700188   34.279660    0.415728   -0.366666   -0.835712  2456933.880368
# Heliocentric elements and errors
Epoch:              2456930.5000  =  2014/09/30
Mean Anomaly:          351.99684 +/-     0.963
Argument of Peri:      252.10547 +/-     1.376
Long of Asc Node:      155.67009 +/-     0.004
Inclination:            26.76800 +/-     0.001
Eccentricity:         0.16673764 +/-    0.0008
Semi-Major Axis:     45.32747246 +/-    0.0236
Time of Perihelion: 2459408.4916 +/-     298.2
Perihelion:          37.76967655 +/-    0.0430
Aphelion:            52.88526837 +/-    0.0471
Period (y)              305.1761 +/-      0.24
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           29.00765105 +/-    0.0049
Ecliptic Y           19.27320252 +/-    0.0033
Ecliptic Z          -14.88709292 +/-    0.0026
Ecliptic XDOT        -0.00192113 +/-    0.0000
Ecliptic YDOT         0.00223836 +/-    0.0000
Ecliptic ZDOT        -0.00062958 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.87513288 +/-    0.0042
Geocenter to KBO     37.03664386 +/-    0.0064
# Hcoef:  7.67

The following table shows the complete astrometric record for 14TA116. 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 (14TA116) followed by the observatory code and reference code for the source of the astrometry.

2014 10  03.37959  02 39 40.669  -09 25 05.00  23.1i 14TA116   W84  C~55SP      
2014 10  21.33806  02 38 18.787  -09 36 32.03  23.6r 14TA116   W84  C~55SP      
2014 10  21.34079  02 38 18.782  -09 36 32.16  23.5i 14TA116   W84  C~55SP      
2014 10  23.33268  02 38 08.969  -09 37 38.60  23.2i 14TA116   W84  C~55SP      
2014 10  28.31273  02 37 44.022  -09 40 13.57  23.1r 14TA116   W84  C~55SP      
2016 09  24.30614  02 53 55.997  -08 56 56.17  23.2r 14TA116   W84  C~55SP      
2016 10  26.31829  02 51 38.017  -09 17 46.82  23.0r 14TA116   W84  C~55SP      
2016 11  03.21230  02 50 58.056  -09 21 33.56  22.6i 14TA116   W84  C~55SP      
2016 11  04.21319  02 50 52.910  -09 21 59.39  23.4r 14TA116   W84  C~55SP      
2016 11  25.15088  02 49 07.402  -09 28 02.31  24.5g 14TA116   W84  C~55SP      
2016 12  02.13300  02 48 34.802  -09 28 43.55  23.5i 14TA116   W84  C~55SP      
2016 12  02.14268  02 48 34.768  -09 28 43.68  24.1g 14TA116   W84  C~55SP      

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     0.01       0.00     0.01
     2   0.0492  -1370.93    -0.09    -244.87     0.11
     3   0.0492  -1371.04     0.02    -244.97     0.04
     4   0.0546  -1530.01     0.10    -259.42    -0.18
     5   0.0683  -1929.47    -0.04    -283.13     0.02
     6   1.9765  12507.11    -0.03   -2693.47     0.07
     7   2.0642  10152.01    -0.42   -3170.12    -0.09
     8   2.0858   9517.15     0.40   -3181.38    -0.10
     9   2.0885   9436.56     0.14   -3179.69    -0.09
    10   2.1458   7841.87     0.15   -2989.25     0.17
    11   2.1650   7373.45    -0.18   -2864.12     0.09
    12   2.1650   7372.94    -0.07   -2864.07    -0.06

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.

14TA116    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        45.714    45.747    45.684
ecceobj         0.173     0.174     0.172
incobj         26.709    26.707    26.709
qmin           37.195    37.212    37.193
qmax           53.793    53.894    53.773
amean          45.320    45.361    45.305
amin           44.916    44.989    44.924
amax           45.768    45.790    45.736
emean           0.161     0.162     0.161
emin            0.145     0.147     0.146
emax            0.177     0.177     0.176
imean          25.898    25.909    25.896
imin           25.510    25.517    25.501
imax           26.249    26.267    26.260
excite_mean     0.466     0.466     0.466
fracstop        1.000     1.000     1.000
cjmean          2.843     2.843     2.843

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       180.6     180.2     181.0
kozaiamp        180.0     180.0     180.0