Orbit Fit and Astrometric record for 14QX562

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: 14QX562   
# Created Tue Dec  7 02:12:42 2021
# Orbit generated from Bernstein formalism
# Fitting     15 observations of     15
# Arc:   4.24y
# First observation: 2014/08/19
#  Last observation: 2018/11/15
Preliminary a, adot, b, bdot, g, gdot:
  -0.000092   0.026152   0.000055  -0.007547   0.026161   0.000000
# Chi-squared of fit:     5.31 DOF:     24 RMS:  0.11
# Min/Max residuals:    -0.16    0.21
# Exact a, adot, b, bdot, g, gdot:
  1.497300E-05  2.581753E-02 -3.819842E-06 -7.420124E-03  2.595649E-02 -2.546140E-03
# Covariance matrix:
  3.9694E-13 -2.4932E-13 -3.6373E-14  7.0021E-14  3.9233E-14 -2.2628E-12
 -2.4932E-13  5.3429E-13  1.1713E-13 -1.8832E-13  2.7437E-13  6.0010E-12
 -3.6373E-14  1.1713E-13  3.0196E-13 -1.4610E-13  6.7635E-14  1.4698E-12
  7.0021E-14 -1.8832E-13 -1.4610E-13  1.3229E-13 -9.0011E-14 -2.4212E-12
  3.9233E-14  2.7437E-13  6.7635E-14 -9.0011E-14  3.6036E-13  2.8172E-12
 -2.2628E-12  6.0010E-12  1.4698E-12 -2.4212E-12  2.8172E-12  7.7312E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -20.747909   20.263064    0.822592   -0.210392   -0.555750  2456888.864778
# Heliocentric elements and errors
Epoch:              2456880.5000  =  2014/08/11
Mean Anomaly:          307.17908 +/-     0.041
Argument of Peri:      299.15237 +/-     0.074
Long of Asc Node:      149.36841 +/-     0.001
Inclination:            26.06744 +/-     0.000
Eccentricity:         0.13648992 +/-    0.0003
Semi-Major Axis:     41.99595602 +/-    0.0043
Time of Perihelion: 2471465.7228 +/-      11.2
Perihelion:          36.26393146 +/-    0.0133
Aphelion:            47.72798059 +/-    0.0137
Period (y)              272.1569 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           34.63773784 +/-    0.0008
Ecliptic Y           11.91359469 +/-    0.0003
Ecliptic Z          -13.64825294 +/-    0.0003
Ecliptic XDOT        -0.00144372 +/-    0.0000
Ecliptic YDOT         0.00236737 +/-    0.0000
Ecliptic ZDOT        -0.00063665 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   39.08940304 +/-    0.0007
Geocenter to KBO     38.52601687 +/-    0.0009
# Hcoef:  7.85

The following table shows the complete astrometric record for 14QX562. 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 (14QX562) followed by the observatory code and reference code for the source of the astrometry.

2014 08  19.36400  01 46 08.386  -11 18 52.55  23.3i 14QX562   W84  C~52Ts      
2014 09  25.25078  01 44 12.776  -11 45 42.11  24.1r 14QX562   W84  C~52Ts      
2014 12  13.14243  01 38 36.506  -12 08 59.53  23.9r 14QX562   W84  C~52Ts      
2015 08  18.39539  01 52 25.108  -11 07 38.34  23.9r 14QX562   W84  C~52Ts      
2015 08  23.37984  01 52 16.697  -11 11 13.79  23.6i 14QX562   W84  C~52Ts      
2015 08  24.41076  01 52 14.689  -11 11 58.92  24.2r 14QX562   W84  C~52Ts      
2015 11  06.16684  01 47 13.257  -11 57 23.42  23.7r 14QX562   W84  C~52Ts      
2015 11  07.19746  01 47 08.397  -11 57 42.02  24.5g 14QX562   W84  C~52Ts      
2015 11  18.22632  01 46 18.581  -12 00 07.63  23.3r 14QX562   W84  C~52Ts      
2016 10  03.29136  01 56 14.170  -11 30 26.41  23.5r 14QX562   W84  C~52Ts      
2017 08  21.34900  02 04 53.944  -10 47 44.27  24.0r 14QX562   W84  C~52Ts      
2017 11  18.18244  01 58 56.539  -11 38 56.01  23.1r 14QX562   W84  C~52Ts      
2017 11  24.16406  01 58 30.756  -11 39 37.77  24.2g 14QX562   W84  C~52Ts      
2018 01  09.09194  01 56 39.948  -11 28 42.67  23.6r 14QX562   W84  C~52Ts      
2018 11  15.25216  02 05 34.072  -11 26 46.92  24.1g 14QX562   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     0.16       0.00    -0.14
     2   0.1010  -2183.17     0.01    -843.71     0.06
     3   0.3170  -7283.64    -0.16    -279.31     0.01
     4   0.9967   5379.64     0.21   -1500.61     0.08
     5   1.0103   5182.27    -0.12   -1651.75     0.03
     6   1.0131   5137.58    -0.08   -1682.01    -0.03
     7   1.2151      0.76    -0.00   -2499.81    -0.00
     8   1.2179    -72.27     0.16   -2489.80    -0.16
     9   1.2481   -803.62    -0.10   -2345.90     0.06
    10   2.1244   7960.25    -0.15   -4068.46     0.12
    11   3.0061  16032.27    -0.14   -4715.10     0.08
    12   3.2493   9964.03     0.03   -5470.69    -0.08
    13   3.2657   9598.03     0.09   -5360.74    -0.00
    14   3.3915   8350.40     0.08   -4120.41     0.11
    15   4.2406  15648.41     0.01   -7108.92    -0.13

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.

14QX562    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        42.302    42.312    42.291
ecceobj         0.138     0.138     0.137
incobj         26.004    26.004    26.004
qmin           35.641    35.646    35.638
qmax           48.725    48.718    48.619
amean          42.007    42.016    41.991
amin           41.667    41.667    41.644
amax           42.389    42.391    42.376
emean           0.131     0.131     0.131
emin            0.114     0.114     0.114
emax            0.150     0.150     0.149
imean          25.111    25.112    25.105
imin           24.582    24.593    24.582
imax           25.599    25.599    25.600
excite_mean     0.444     0.444     0.444
fracstop        1.000     1.000     1.000
cjmean          2.837     2.837     2.837

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       176.2     176.3     176.0
kozaiamp        180.0     180.0     180.0