Orbit Fit and Astrometric record for 14RT86

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: 14RT86    
# Created Tue Dec  7 02:12:43 2021
# Orbit generated from Bernstein formalism
# Fitting     12 observations of     12
# Arc:   3.37y
# First observation: 2014/09/04
#  Last observation: 2018/01/17
Preliminary a, adot, b, bdot, g, gdot:
   0.000106   0.031163  -0.000087   0.004884   0.027525   0.000000
# Chi-squared of fit:     4.99 DOF:     18 RMS:  0.11
# Min/Max residuals:    -0.24    0.26
# Exact a, adot, b, bdot, g, gdot:
  1.796757E-05  3.117456E-02  2.836363E-06  4.837773E-03  2.770286E-02 -2.982150E-03
# Covariance matrix:
  1.2172E-12 -6.9557E-14 -1.6405E-13  3.2455E-14  7.2195E-13  7.6660E-14
 -6.9557E-14  6.9583E-13 -1.1912E-13  1.8894E-13  3.2354E-13  9.2538E-12
 -1.6405E-13 -1.1912E-13  3.9699E-13 -1.7100E-13 -1.8363E-13 -1.6320E-12
  3.2455E-14  1.8894E-13 -1.7100E-13  1.3579E-13  1.0952E-13  2.8159E-12
  7.2195E-13  3.2354E-13 -1.8363E-13  1.0952E-13  7.1932E-13  4.1567E-12
  7.6660E-14  9.2538E-12 -1.6320E-12  2.8159E-12  4.1567E-12  1.3942E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
  -30.366597   22.655316    0.665644   -0.384677   -0.656833  2456904.828548
# Heliocentric elements and errors
Epoch:              2456900.5000  =  2014/08/31
Mean Anomaly:          339.47915 +/-     0.052
Argument of Peri:      318.00465 +/-     0.093
Long of Asc Node:       95.17336 +/-     0.001
Inclination:            30.78479 +/-     0.000
Eccentricity:         0.24275008 +/-    0.0002
Semi-Major Axis:     46.93222943 +/-    0.0086
Time of Perihelion: 2463594.6893 +/-      16.7
Perihelion:          35.53942683 +/-    0.0131
Aphelion:            58.32503204 +/-    0.0156
Period (y)              321.5252 +/-      0.09
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           29.69823566 +/-    0.0009
Ecliptic Y           11.67763835 +/-    0.0003
Ecliptic Z          -18.24825759 +/-    0.0006
Ecliptic XDOT        -0.00120315 +/-    0.0000
Ecliptic YDOT         0.00283395 +/-    0.0000
Ecliptic ZDOT         0.00056163 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   36.76073101 +/-    0.0008
Geocenter to KBO     36.09735106 +/-    0.0011
# Hcoef:  7.70

The following table shows the complete astrometric record for 14RT86. 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 (14RT86) followed by the observatory code and reference code for the source of the astrometry.

2014 09  04.32777  02 09 44.635  -19 22 01.10  23.4r 14RT86    W84  C~52Tx      
2014 12  22.12341  02 01 29.541  -19 45 31.65  22.9r 14RT86    W84  C~52Tx      
2014 12  24.15363  02 01 24.733  -19 44 12.24  23.4i 14RT86    W84  C~52Tx      
2015 01  09.05044  02 01 02.146  -19 31 55.40  23.0i 14RT86    W84  C~52Tx      
2015 01  28.06351  02 01 11.833  -19 13 39.36  23.1z 14RT86    W84  C~52Tx      
2016 11  25.22626  02 16 08.051  -18 02 23.22  23.6r 14RT86    W84  C~52Tx      
2016 11  25.22762  02 16 08.045  -18 02 23.37  24.2g 14RT86    W84  C~52Tx      
2016 11  26.20792  02 16 03.304  -18 02 14.08  22.9i 14RT86    W84  C~52Tx      
2016 12  31.12454  02 14 02.782  -17 46 20.76  22.3i 14RT86    W84  C~52Tx      
2017 11  23.13798  02 22 48.328  -17 03 36.42  23.5r 14RT86    W84  C~52Tx      
2017 11  23.13935  02 22 48.323  -17 03 36.47  23.6i 14RT86    W84  C~52Tx      
2018 01  17.09602  02 20 07.648  -16 34 48.10  23.7r 14RT86    W84  C~52Tx      

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    -0.02
     2   0.2979  -7006.27     0.03    1381.93    -0.18
     3   0.3034  -7039.16    -0.01    1481.17     0.01
     4   0.3469  -7056.52     0.09    2284.49     0.26
     5   0.3990  -6515.34    -0.10    3248.23    -0.06
     6   2.2256   6890.25     0.14    2251.53     0.01
     7   2.2256   6890.11     0.08    2251.43    -0.14
     8   2.2283   6831.68    -0.24    2286.83     0.14
     9   2.3239   5628.52     0.10    3844.12    -0.02
    10   3.2192  13566.95    -0.04    3187.20    -0.06
    11   3.2192  13566.86    -0.03    3187.18    -0.12
    12   3.3697  12149.78     0.02    5704.92     0.17

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.

14RT86    quality flag:2

Type:       SCATEXTD  SCATNEAR  SCATNEAR

axisobj        47.397    47.418    47.376
ecceobj         0.248     0.249     0.248
incobj         30.798    30.798    30.798
qmin           34.441    34.395    34.380
qmax           60.166    60.215    60.211
amean          46.991    47.013    46.974
amin           46.566    46.572    46.546
amax           47.499    47.546    47.513
emean           0.246     0.246     0.246
emin            0.227     0.227     0.226
emax            0.267     0.267     0.267
imean          29.067    29.063    29.062
imin           28.493    28.497    28.505
imax           29.557    29.553    29.542
excite_mean     0.545     0.545     0.545
fracstop        1.000     1.000     1.000
cjmean          2.758     2.758     2.758

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       180.0     179.7     180.2
kozaiamp        180.0     180.0     180.0