Orbit Fit and Astrometric record for 14QT562

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: 14QT562   
# Created Fri Dec  3 02:12:34 2021
# Orbit generated from Bernstein formalism
# Fitting     22 observations of     22
# Arc:   4.29y
# First observation: 2014/08/19
#  Last observation: 2018/12/02
Preliminary a, adot, b, bdot, g, gdot:
   0.000061   0.026348  -0.000000  -0.003584   0.026009   0.000000
# Chi-squared of fit:     9.40 DOF:     38 RMS:  0.12
# Min/Max residuals:    -0.32    0.27
# Exact a, adot, b, bdot, g, gdot:
  1.616221E-05  2.622038E-02 -1.519180E-06 -3.552814E-03  2.590933E-02 -6.553971E-04
# Covariance matrix:
  5.2306E-13 -2.7338E-13 -2.2569E-14  4.5730E-14  1.1582E-13 -3.0534E-12
 -2.7338E-13  4.2181E-13  4.9605E-14 -7.6431E-14  1.6727E-13  5.1843E-12
 -2.2569E-14  4.9605E-14  2.7835E-13 -1.1137E-13  2.2742E-14  6.8979E-13
  4.5730E-14 -7.6431E-14 -1.1137E-13  6.6120E-14 -2.2707E-14 -1.1046E-12
  1.1582E-13  1.6727E-13  2.2742E-14 -2.2707E-14  2.9277E-13  1.5948E-12
 -3.0534E-12  5.1843E-12  6.8979E-13 -1.1046E-12  1.5948E-12  7.4739E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -21.164762   18.016978    0.798701   -0.225892   -0.583809  2456888.861988
# Heliocentric elements and errors
Epoch:              2456880.5000  =  2014/08/11
Mean Anomaly:          308.49436 +/-     0.178
Argument of Peri:      306.42278 +/-     0.216
Long of Asc Node:      128.84331 +/-     0.001
Inclination:            22.32140 +/-     0.000
Eccentricity:         0.05874741 +/-    0.0003
Semi-Major Axis:     40.58151263 +/-    0.0031
Time of Perihelion: 2470390.1175 +/-      46.6
Perihelion:          38.19745397 +/-    0.0110
Aphelion:            42.96557130 +/-    0.0111
Period (y)              258.5238 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           35.06763750 +/-    0.0007
Ecliptic Y           10.56865717 +/-    0.0002
Ecliptic Z          -13.93523775 +/-    0.0003
Ecliptic XDOT        -0.00105219 +/-    0.0000
Ecliptic YDOT         0.00256866 +/-    0.0000
Ecliptic ZDOT        -0.00032498 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   39.18707141 +/-    0.0007
Geocenter to KBO     38.59613107 +/-    0.0008
# Hcoef:  7.49

The following table shows the complete astrometric record for 14QT562. 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 (14QT562) followed by the observatory code and reference code for the source of the astrometry.

2014 08  19.36121  01 38 52.622  -12 30 18.02  23.6r 14QT562   W84  C~52Tr      
2014 12  13.13834  01 31 15.762  -13 14 45.80  23.7g 14QT562   W84  C~52Tr      
2014 12  13.13969  01 31 15.756  -13 14 45.70  23.1r 14QT562   W84  C~52Tr      
2015 08  18.41773  01 44 53.946  -12 05 38.54  23.8r 14QT562   W84  C~52Tr      
2015 08  23.39227  01 44 44.502  -12 09 05.94  23.1i 14QT562   W84  C~52Tr      
2015 10  17.19482  01 41 11.337  -12 44 37.82  24.1g 14QT562   W84  C~52Tr      
2015 11  02.17157  01 39 52.829  -12 50 53.28  24.2g 14QT562   W84  C~52Tr      
2015 11  18.23045  01 38 39.819  -12 53 59.09  23.1i 14QT562   W84  C~52Tr      
2015 11  20.11807  01 38 31.996  -12 54 07.57  23.1z 14QT562   W84  C~52Tr      
2016 09  30.22822  01 48 31.850  -12 11 18.48  23.3i 14QT562   W84  C~52Tr      
2016 09  30.22961  01 48 31.839  -12 11 18.23  23.3r 14QT562   W84  C~52Tr      
2016 09  30.23097  01 48 31.854  -12 11 18.47  23.7g 14QT562   W84  C~52Tr      
2016 11  26.10410  01 44 06.426  -12 30 24.24  24.0i 14QT562   W84  C~52Tr      
2016 11  30.06309  01 43 51.874  -12 30 12.26  23.4r 14QT562   W84  C~52Tr      
2016 11  30.06445  01 43 51.848  -12 30 12.29  23.9g 14QT562   W84  C~52Tr      
2017 11  18.17557  01 50 40.772  -12 05 38.43  23.1i 14QT562   W84  C~52Tr      
2017 11  18.17693  01 50 40.766  -12 05 38.47  23.4r 14QT562   W84  C~52Tr      
2017 11  18.17831  01 50 40.764  -12 05 38.35  23.5g 14QT562   W84  C~52Tr      
2017 11  27.18886  01 50 03.650  -12 06 00.57  22.6z 14QT562   W84  C~52Tr      
2017 11  27.19024  01 50 03.642  -12 06 00.62  23.3i 14QT562   W84  C~52Tr      
2017 12  15.10739  01 49 05.932  -12 03 23.98  23.7g 14QT562   W84  C~52Tr      
2018 12  02.13991  01 55 46.127  -11 40 51.53  23.6r 14QT562   W84  C~52Tr      

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    -0.03       0.00    -0.13
     2   0.3170  -7195.69    -0.01     102.76     0.04
     3   0.3170  -7195.73    -0.02     102.89     0.13
     4   0.9967   5454.36     0.05    -703.40     0.11
     5   1.0104   5245.43     0.00    -839.82     0.05
     6   1.1604   1536.99     0.07   -1581.10    -0.20
     7   1.2041    332.94     0.06   -1480.34    -0.27
     8   1.2481   -723.21     0.08   -1237.57     0.17
     9   1.2533   -831.96    -0.02   -1201.09    -0.15
    10   2.1160   8260.50    -0.16   -2276.73    -0.04
    11   2.1160   8260.45    -0.10   -2276.44     0.27
    12   2.1160   8260.56     0.11   -2276.75    -0.03
    13   2.2717   4230.27     0.04   -1797.03    -0.02
    14   2.2826   4038.82     0.07   -1702.45     0.09
    15   2.2826   4038.46    -0.22   -1702.33     0.18
    16   3.2493  10134.85     0.02   -2715.49     0.03
    17   3.2493  10134.76     0.01   -2715.49    -0.00
    18   3.2493  10134.78     0.12   -2715.37     0.09
    19   3.2740   9625.14     0.02   -2519.09     0.00
    20   3.2740   9625.01    -0.04   -2519.08    -0.03
    21   3.3231   8908.47    -0.04   -2038.84    -0.32
    22   4.2869  14855.81     0.00   -3146.53     0.02

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.

14QT562    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        40.890    40.899    40.880
ecceobj         0.061     0.061     0.061
incobj         22.298    22.298    22.298
qmin           37.538    37.536    37.543
qmax           44.007    43.957    43.923
amean          40.643    40.652    40.634
amin           40.341    40.336    40.323
amax           40.969    40.969    40.953
emean           0.059     0.059     0.059
emin            0.046     0.046     0.046
emax            0.074     0.074     0.073
imean          20.915    20.916    20.914
imin           20.365    20.364    20.370
imax           21.546    21.550    21.549
excite_mean     0.362     0.362     0.362
fracstop        1.000     1.000     1.000
cjmean          2.908     2.908     2.908

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       182.0     184.0     180.6
kozaiamp        179.9     180.0     179.9