Orbit Fit and Astrometric record for 14GQ53

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: 14GQ53    
# Created Thu Dec 14 02:38:00 2017
# Orbit generated from Bernstein formalism
# Fitting   16 observations of   16
# Arc:   3.07y
# First observation: 2014/04/08
#  Last observation: 2017/05/02
Preliminary a, adot, b, bdot, g, gdot:
   0.000087   0.095999  -0.000029  -0.000826   0.057625   0.000000
# Chi-squared of fit:     9.54 DOF:   26 RMS:  0.14
# Min/Max residuals:    -0.35    0.25
# Exact a, adot, b, bdot, g, gdot:
  2.606537E-05  9.738943E-02 -1.032197E-08 -1.050570E-03  5.844956E-02  1.408231E-02
# Covariance matrix:
  3.5714E-13 -4.5891E-13  8.8007E-15 -4.8657E-15  2.6198E-13 -1.3798E-12
 -4.5891E-13  1.4750E-12 -6.1787E-15  2.0846E-16 -1.4150E-13  5.1026E-12
  8.8007E-15 -6.1787E-15  1.4174E-13 -6.8931E-14  1.5491E-14 -1.8455E-14
 -4.8657E-15  2.0846E-16 -6.8931E-14  9.8060E-14 -1.0151E-14 -2.2529E-15
  2.6198E-13 -1.4150E-13  1.5491E-14 -1.0151E-14  4.8212E-13 -3.8462E-13
 -1.3798E-12  5.1026E-12 -1.8455E-14 -2.2529E-15 -3.8462E-13  1.8947E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   23.970820 -139.431727    0.375545    0.376805   -0.847317  2456756.004658
# Heliocentric elements and errors
Epoch:              2456750.5000  =  2014/04/03
Mean Anomaly:           15.40197 +/-     0.004
Argument of Peri:       59.52807 +/-     0.007
Long of Asc Node:      129.34816 +/-     0.001
Inclination:            22.76382 +/-     0.000
Eccentricity:         0.31304398 +/-    0.0001
Semi-Major Axis:     25.29331879 +/-    0.0027
Time of Perihelion: 2454762.6619 +/-       0.4
Perihelion:          17.37539763 +/-    0.0027
Aphelion:            33.21123994 +/-    0.0041
Period (y)              127.2087 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -12.82538126 +/-    0.0001
Ecliptic Y          -10.48324746 +/-    0.0001
Ecliptic Z            6.95084231 +/-    0.0001
Ecliptic XDOT         0.00248825 +/-    0.0000
Ecliptic YDOT        -0.00387359 +/-    0.0000
Ecliptic ZDOT         0.00022315 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   17.96393861 +/-    0.0001
Geocenter to KBO     17.10876929 +/-    0.0002
# Hcoef:  9.35

The following table shows the complete astrometric record for 14GQ53. 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 (14GQ53) followed by the observatory code and reference code for the source of the astrometry.

2014 04  08.50388  15 02 04.803  +07 50 14.73  22.1w 14GQ53    F51  C~1vXL      
2014 04  08.51657  15 02 04.692  +07 50 15.61  21.8w 14GQ53    F51  C~1vXL      
2014 04  08.52930  15 02 04.597  +07 50 16.47  22.2w 14GQ53    F51  C~1vXL      
2014 05  05.40938  14 57 58.809  +08 16 08.84  21.5w 14GQ53    F51  C~1vXL      
2014 05  05.42238  14 57 58.668  +08 16 09.53  21.9w 14GQ53    F51  C~1vXL      
2014 05  05.43533  14 57 58.557  +08 16 10.14  21.7w 14GQ53    F51  C~1vXL      
2014 06  24.33488  14 51 05.765  +08 15 47.57  22.2w 14GQ53    F51  C~1vXL      
2014 06  24.34633  14 51 05.703  +08 15 47.15  21.9w 14GQ53    F51  C~1vXL      
2014 06  24.35776  14 51 05.641  +08 15 46.74  22.0w 14GQ53    F51  C~1vXL      
2014 06  24.36918  14 51 05.576  +08 15 46.20  21.9w 14GQ53    F51  C~1vXL      
2015 04  13.54072  15 22 28.587  +06 09 50.42  21.0i 14GQ53    F51  C~2HP4      
2015 04  13.55883  15 22 28.471  +06 09 51.51  21.3i 14GQ53    F51  C~2HP4      
2015 04  13.57170  15 22 28.379  +06 09 52.81  21.4i 14GQ53    F51  C~2HP4      
2015 04  13.58463  15 22 28.256  +06 09 53.43  21.3i 14GQ53    F51  C~2HP4      
2017 05  02.35276  15 59 51.75   +02 58 14.2   21.4R 14GQ53    G37  C~2HP4      
2017 05  02.41837  15 59 51.15   +02 58 17.1         14GQ53    G37  C~2HP4      

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     0.06       0.00    -0.06
  2   0.0000     -1.84    -0.03       0.33    -0.12
  3   0.0001     -3.45     0.13       0.72    -0.13
  4   0.0737  -3953.47    -0.01     370.64    -0.03
  5   0.0737  -3955.67    -0.22     370.66     0.08
  6   0.0737  -3957.43     0.01     370.75     0.25
  7   0.2104  -9801.78     0.03   -1494.28     0.01
  8   0.2104  -9802.54     0.03   -1494.96     0.07
  9   0.2104  -9803.30     0.01   -1495.63     0.14
 10   0.2104  -9804.06    -0.00   -1496.43     0.07
 11   1.0131  19244.72    -0.35     -72.00    -0.29
 12   1.0132  19242.72     0.14     -71.51    -0.24
 13   1.0132  19240.99     0.19     -70.71     0.24
 14   1.0132  19239.04     0.01     -70.70    -0.07
 15   3.0660  55955.85     0.05    -151.79     0.09
 16   3.0662  55945.71    -0.05    -152.01     0.01

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.

14GQ53    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        25.222    25.236    25.207
ecceobj         0.310     0.311     0.310
incobj         22.774    22.774    22.774
qmin           16.885    16.532    16.696
qmax           33.916    33.802    34.038
amean          25.022    24.228    25.072
amin           24.211    22.700    24.449
amax           25.692    25.623    25.600
emean           0.309     0.268     0.306
emin            0.278     0.214     0.257
emax            0.330     0.330     0.331
imean          21.142    22.294    21.050
imin           20.561    20.290    20.218
imax           22.057    23.636    22.784
excite_mean     0.475     0.466     0.473
fracstop        0.013     0.030     0.013
cjmean          2.821     2.838     2.822

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        96.6     139.2      99.3
kozaiamp         37.5      80.9      36.5