Orbit Fit and Astrometric record for 14QZ562

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: 14QZ562   
# Created Tue Dec  7 02:12:42 2021
# Orbit generated from Bernstein formalism
# Fitting     13 observations of     13
# Arc:   2.99y
# First observation: 2014/08/20
#  Last observation: 2017/08/17
Preliminary a, adot, b, bdot, g, gdot:
   0.000022   0.023767  -0.000030   0.002709   0.024508   0.000000
# Chi-squared of fit:     3.94 DOF:     20 RMS:  0.10
# Min/Max residuals:    -0.25    0.19
# Exact a, adot, b, bdot, g, gdot:
  1.496221E-05  2.398110E-02  2.184592E-06  2.729298E-03  2.480422E-02  3.110471E-03
# Covariance matrix:
  4.0454E-13 -1.8496E-13 -6.8831E-14  1.3812E-14  3.8343E-13 -6.8893E-13
 -1.8496E-13  9.6662E-13 -9.7419E-14  1.3499E-13  4.9526E-13  1.3100E-11
 -6.8831E-14 -9.7419E-14  2.7212E-13 -1.2350E-13 -2.5456E-13 -1.7366E-12
  1.3812E-14  1.3499E-13 -1.2350E-13  1.0868E-13  1.4541E-13  2.1043E-12
  3.8343E-13  4.9526E-13 -2.5456E-13  1.4541E-13  1.3793E-12  8.9529E-12
 -6.8893E-13  1.3100E-11 -1.7366E-12  2.1043E-12  8.9529E-12  1.9669E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
  -27.633117  -43.650980   -0.186072   -0.462513   -0.883714  2456889.708538
# Heliocentric elements and errors
Epoch:              2456880.5000  =  2014/08/11
Mean Anomaly:           82.41997 +/-     0.093
Argument of Peri:      184.85141 +/-     0.062
Long of Asc Node:       32.42456 +/-     0.002
Inclination:            27.71817 +/-     0.000
Eccentricity:         0.13362056 +/-    0.0006
Semi-Major Axis:     41.18944548 +/-    0.0085
Time of Perihelion: 2434774.6470 +/-      23.9
Perihelion:          35.68568852 +/-    0.0243
Aphelion:            46.69320245 +/-    0.0251
Period (y)              264.3548 +/-      0.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           26.69175527 +/-    0.0012
Ecliptic Y          -25.20619019 +/-    0.0012
Ecliptic Z          -18.69867868 +/-    0.0009
Ecliptic XDOT         0.00214343 +/-    0.0000
Ecliptic YDOT         0.00160455 +/-    0.0000
Ecliptic ZDOT         0.00010777 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.20002922 +/-    0.0011
Geocenter to KBO     40.31572341 +/-    0.0019
# Hcoef:  7.53

The following table shows the complete astrometric record for 14QZ562. 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 (14QZ562) followed by the observatory code and reference code for the source of the astrometry.

2014 08  20.20776  21 58 16.229  -41 58 24.93  24.1g 14QZ562   W84  C~52Ts      
2014 08  20.20913  21 58 16.215  -41 58 24.87  23.6r 14QZ562   W84  C~52Ts      
2014 08  22.20282  21 58 03.723  -41 59 01.35  24.4g 14QZ562   W84  C~52Ts      
2014 10  26.07378  21 53 01.755  -41 48 55.18  23.5g 14QZ562   W84  C~52Ts      
2014 10  28.10224  21 52 58.390  -41 47 42.32  23.6i 14QZ562   W84  C~52Ts      
2014 11  13.01735  21 52 49.443  -41 36 43.52  22.9z 14QZ562   W84  C~52Ts      
2015 09  13.12154  22 02 16.896  -41 21 48.04  23.7r 14QZ562   W84  C~52Ts      
2015 09  13.12291  22 02 16.901  -41 21 48.03  24.1i 14QZ562   W84  C~52Ts      
2015 09  13.12427  22 02 16.868  -41 21 48.29  25.1g 14QZ562   W84  C~52Ts      
2016 10  08.05344  22 06 25.462  -40 36 53.06  23.4i 14QZ562   W84  C~52Ts      
2017 08  17.21302  22 17 11.673  -39 51 04.93  23.7r 14QZ562   W84  C~52Ts      
2017 08  17.21441  22 17 11.676  -39 51 04.98  23.0i 14QZ562   W84  C~52Ts      
2017 08  17.21578  22 17 11.675  -39 51 05.13  24.1g 14QZ562   W84  C~52Ts      

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     0.07       0.00    -0.09
     2   0.0000     -0.12     0.05       0.12     0.01
     3   0.0055   -142.68     0.07      20.36     0.19
     4   0.1831  -3031.52    -0.06    1861.72    -0.01
     5   0.1886  -3039.27    -0.09    1943.37    -0.11
     6   0.2322  -2886.74     0.01    2592.18    -0.08
     7   1.0648   3342.84    -0.03     962.21     0.10
     8   1.0648   3342.90     0.11     962.20     0.05
     9   1.0648   3342.45    -0.25     962.10    -0.07
    10   2.1351   7007.66     0.15    2294.23     0.08
    11   2.9925  14898.63    -0.10    1658.18     0.07
    12   2.9925  14898.63     0.02    1658.12    -0.00
    13   2.9925  14898.56     0.04    1657.99    -0.14

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.

14QZ562    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        41.311    41.337    41.285
ecceobj         0.131     0.132     0.130
incobj         27.726    27.726    27.726
qmin           34.611    34.887    34.608
qmax           48.495    48.333    48.433
amean          41.448    41.460    41.388
amin           41.116    41.110    41.044
amax           41.831    41.833    41.761
emean           0.143     0.138     0.142
emin            0.126     0.120     0.124
emax            0.162     0.156     0.161
imean          26.927    27.018    26.926
imin           26.426    26.537    26.410
imax           27.414    27.448    27.462
excite_mean     0.475     0.475     0.475
fracstop        1.000     1.000     1.000
cjmean          2.797     2.797     2.797

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       192.3     190.9     189.7
kozaiamp        179.9     179.9     180.0