Orbit Fit and Astrometric record for 14QS562

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: 14QS562   
# Created Mon Dec  6 02:12:34 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     14 observations of     14
# Arc:   7.21y
# First observation: 2014/08/19
#  Last observation: 2021/11/05
# Chi-squared of fit:     4.43 DOF:     22 RMS:  0.10
# Min/Max residuals:    -0.27    0.23
# Exact a, adot, b, bdot, g, gdot:
  1.820791E-05  2.589456E-02  5.018466E-06  5.735333E-03  2.271496E-02 -7.201237E-03
# Covariance matrix:
  5.4891E-13 -1.4241E-13  2.2408E-14 -2.2569E-14  1.8947E-13 -5.7616E-13
 -1.4241E-13  1.8372E-13 -4.4409E-14  4.1108E-14  1.1574E-13  8.7115E-13
  2.2408E-14 -4.4409E-14  2.6226E-13 -5.9399E-14 -3.3030E-14 -2.2920E-13
 -2.2569E-14  4.1108E-14 -5.9399E-14  2.5624E-14  2.8688E-14  2.1283E-13
  1.8947E-13  1.1574E-13 -3.3030E-14  2.8688E-14  3.4210E-13  5.0683E-13
 -5.7616E-13  8.7115E-13 -2.2920E-13  2.1283E-13  5.0683E-13  4.5460E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
  -22.213959   18.495154    0.804018   -0.233960   -0.573244  2456888.850758
# Heliocentric elements and errors
Epoch:              2456888.5000  =  2014/08/19
Mean Anomaly:          354.15125 +/-     0.004
Argument of Peri:      337.98651 +/-     0.009
Long of Asc Node:       77.31868 +/-     0.001
Inclination:            24.92602 +/-     0.000
Eccentricity:         0.68607935 +/-    0.0001
Semi-Major Axis:    128.37148518 +/-    0.0524
Time of Perihelion: 2465519.5110 +/-     320.1
Perihelion:          40.29845967 +/-    0.0232
Aphelion:           216.44451070 +/-    0.0898
Period (y)             1454.4910 +/-      0.89
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           39.49108975 +/-    0.0010
Ecliptic Y           12.36510982 +/-    0.0003
Ecliptic Z          -16.64373575 +/-    0.0004
Ecliptic XDOT        -0.00150917 +/-    0.0000
Ecliptic YDOT         0.00278360 +/-    0.0000
Ecliptic ZDOT         0.00096825 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.60355351 +/-    0.0009
Geocenter to KBO     44.02409552 +/-    0.0011
# Hcoef:  6.94

The following table shows the complete astrometric record for 14QS562. 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 (14QS562) followed by the observatory code and reference code for the source of the astrometry.

2014 08  19.34998  01 42 13.586  -13 18 00.07  22.9i 14QS562   W84  C~52Tr      
2014 12  15.14064  01 35 23.312  -13 46 32.83  23.9r 14QS562   W84  C~52Tr      
2014 12  20.14107  01 35 14.429  -13 44 36.58  22.9i 14QS562   W84  C~52Tr      
2015 08  18.41773  01 47 22.059  -12 24 12.86  22.4r 14QS562   W84  C~52Tr      
2015 08  24.40940  01 47 11.907  -12 27 24.09  23.3i 14QS562   W84  C~52Tr      
2016 10  03.29136  01 50 13.683  -11 53 57.76  23.4r 14QS562   W84  C~52Tr      
2016 11  30.06309  01 46 15.496  -12 04 09.37  23.5r 14QS562   W84  C~52Tr      
2017 11  18.17557  01 52 10.994  -11 09 53.60  23.3i 14QS562   W84  C~52Tr      
2017 11  18.17693  01 52 10.987  -11 09 53.58  23.6r 14QS562   W84  C~52Tr      
2017 11  27.19160  01 51 37.481  -11 09 31.82  23.0i 14QS562   W84  C~52Tr      
2017 12  15.10182  01 50 45.069  -11 05 52.70  23.5r 14QS562   W84  C~52Tr      
2021 11  05.251580 02 14 25.543  -07 15 46.79  23.3G 14QS562   G37  C~5BU8      
2021 11  05.306610 02 14 25.303  -07 15 47.47        14QS562   G37  C~5BU8      
2021 11  05.366230 02 14 25.024  -07 15 48.32        14QS562   G37  C~5BU8      

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     0.05       0.00    -0.21
     2   0.3225      0.00    -0.27       0.00     0.23
     3   0.3362      0.00     0.14       0.00     0.07
     4   0.9968      0.00     0.09       0.00     0.07
     5   1.0132      0.00    -0.03       0.00    -0.01
     6   2.1244      0.00    -0.01       0.00    -0.10
     7   2.2826      0.00     0.05       0.00     0.06
     8   3.2494      0.00     0.04       0.00    -0.02
     9   3.2494      0.00     0.01       0.00     0.00
    10   3.2740      0.00    -0.04       0.00    -0.07
    11   3.3231      0.00     0.06       0.00    -0.03
    12   7.2140      0.00    -0.11       0.00     0.05
    13   7.2141      0.00     0.08       0.00     0.05
    14   7.2143      0.00    -0.01       0.00    -0.06

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.

14QS562    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj       131.856   131.853   131.859
ecceobj         0.694     0.694     0.694
incobj         24.927    24.927    24.927
qmin           38.156    38.357    38.380
qmax          225.158   225.840   227.956
amean         128.071   128.507   128.940
amin          125.459   125.675   125.794
amax          132.474   132.807   133.760
emean           0.687     0.687     0.688
emin            0.675     0.676     0.677
emax            0.702     0.702     0.704
imean          23.144    23.272    23.295
imin           22.076    22.277    22.320
imax           24.105    24.102    24.086
excite_mean     0.792     0.793     0.794
fracstop        1.000     1.000     1.000
cjmean          2.990     2.991     2.990

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       106.2     104.9     106.7
kozaiamp        180.0     180.0     180.0