Orbit Fit and Astrometric record for 14QR562

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: 14QR562   
# Created Wed Dec  8 02:12:40 2021
# Orbit generated from Bernstein formalism
# Fitting     25 observations of     25
# Arc:   4.24y
# First observation: 2014/08/19
#  Last observation: 2018/11/15
Preliminary a, adot, b, bdot, g, gdot:
   0.000258   0.029677  -0.000067  -0.010784   0.025631   0.000000
# Chi-squared of fit:     6.11 DOF:     44 RMS:  0.09
# Min/Max residuals:    -0.17    0.35
# Exact a, adot, b, bdot, g, gdot:
  1.833621E-05  2.971009E-02 -6.459527E-06 -1.082320E-02  2.541175E-02  1.974377E-03
# Covariance matrix:
  2.7026E-13 -1.3381E-13 -1.6627E-14  4.5492E-14  8.6258E-14 -1.0914E-12
 -1.3381E-13  2.9909E-13  5.5599E-14 -1.2157E-13  1.3190E-13  2.9559E-12
 -1.6627E-14  5.5599E-14  2.0300E-13 -9.1093E-14  2.2868E-14  6.2825E-13
  4.5492E-14 -1.2157E-13 -9.1093E-14  9.0760E-14 -3.2099E-14 -1.4232E-12
  8.6258E-14  1.3190E-13  2.2868E-14 -3.2099E-14  3.0054E-13  8.0934E-13
 -1.0914E-12  2.9559E-12  6.2825E-13 -1.4232E-12  8.0934E-13  3.4524E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -20.379750   11.987168    0.728893   -0.245759   -0.661909  2456888.831758
# Heliocentric elements and errors
Epoch:              2456880.5000  =  2014/08/11
Mean Anomaly:            1.44360 +/-     0.006
Argument of Peri:      219.66691 +/-     0.029
Long of Asc Node:      148.31038 +/-     0.001
Inclination:            28.31458 +/-     0.000
Eccentricity:         0.57424676 +/-    0.0001
Semi-Major Axis:     93.77267604 +/-    0.0255
Time of Perihelion: 2455550.4819 +/-       5.7
Perihelion:          39.92402103 +/-    0.0153
Aphelion:           147.62133105 +/-    0.0416
Period (y)              908.0770 +/-      0.37
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           36.92383290 +/-    0.0008
Ecliptic Y            7.09733365 +/-    0.0002
Ecliptic Z          -13.70417099 +/-    0.0003
Ecliptic XDOT        -0.00087187 +/-    0.0000
Ecliptic YDOT         0.00308394 +/-    0.0000
Ecliptic ZDOT        -0.00116705 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.01931888 +/-    0.0007
Geocenter to KBO     39.35187769 +/-    0.0008
# Hcoef:  7.27

The following table shows the complete astrometric record for 14QR562. 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 (14QR562) followed by the observatory code and reference code for the source of the astrometry.

2014 08  19.33098  01 16 18.930  -14 00 29.48  23.2r 14QR562   W84  C~52Tr      
2014 08  19.33234  01 16 18.926  -14 00 29.52  23.3i 14QR562   W84  C~52Tr      
2014 08  19.33371  01 16 18.922  -14 00 29.53  23.3g 14QR562   W84  C~52Tr      
2014 08  19.33507  01 16 18.917  -14 00 29.72  23.2z 14QR562   W84  C~52Tr      
2014 11  21.18686  01 10 15.097  -14 48 18.29  23.2i 14QR562   W84  C~52Tr      
2014 12  22.08427  01 09 13.374  -14 42 30.74  23.2i 14QR562   W84  C~52Tr      
2015 10  07.18906  01 20 54.094  -14 27 20.04  22.9r 14QR562   W84  C~52Tr      
2015 10  07.19043  01 20 54.083  -14 27 20.04  22.6i 14QR562   W84  C~52Tr      
2015 10  07.19181  01 20 54.075  -14 27 20.41  23.6g 14QR562   W84  C~52Tr      
2016 09  30.21588  01 28 49.514  -14 15 45.59  23.3r 14QR562   W84  C~52Tr      
2016 09  30.21725  01 28 49.496  -14 15 45.60  22.8i 14QR562   W84  C~52Tr      
2016 09  30.21862  01 28 49.483  -14 15 45.33  23.5g 14QR562   W84  C~52Tr      
2016 10  02.21398  01 28 40.796  -14 17 00.12  23.4r 14QR562   W84  C~52Tr      
2016 10  02.21536  01 28 40.784  -14 17 00.10  22.9i 14QR562   W84  C~52Tr      
2016 10  02.21675  01 28 40.776  -14 17 00.17  23.8g 14QR562   W84  C~52Tr      
2017 09  25.26700  01 36 36.282  -14 03 40.06  23.0i 14QR562   W84  C~52Tr      
2017 09  25.26837  01 36 36.273  -14 03 40.05  23.3r 14QR562   W84  C~52Tr      
2017 09  25.26976  01 36 36.276  -14 03 40.06  23.9g 14QR562   W84  C~52Tr      
2017 11  24.15165  01 32 20.250  -14 26 11.56  23.4i 14QR562   W84  C~52Tr      
2017 11  24.15304  01 32 20.236  -14 26 11.59  23.5r 14QR562   W84  C~52Tr      
2017 11  24.15441  01 32 20.230  -14 26 11.57  24.0g 14QR562   W84  C~52Tr      
2017 11  27.05937  01 32 10.657  -14 26 08.28  23.1i 14QR562   W84  C~52Tr      
2017 12  11.06035  01 31 32.852  -14 24 14.47  23.6r 14QR562   W84  C~52Tr      
2018 11  15.22176  01 40 15.394  -14 16 26.54  23.5r 14QR562   W84  C~52Tr      
2018 11  15.22312  01 40 15.388  -14 16 26.57  23.7g 14QR562   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    -0.06
     2   0.0000     -0.07     0.03      -0.01    -0.03
     3   0.0000     -0.13     0.03       0.00     0.02
     4   0.0000     -0.27    -0.05      -0.14    -0.09
     5   0.2570  -5992.64    -0.01    -527.92    -0.08
     6   0.3416  -6678.88    -0.04     144.94     0.12
     7   1.1331   3011.98     0.07   -3087.63     0.04
     8   1.1331   3011.83     0.03   -3087.56     0.11
     9   1.1331   3011.58    -0.12   -3087.85    -0.17
    10   2.1160   9608.15     0.00   -5286.44    -0.10
    11   2.1160   9607.91    -0.14   -5286.34     0.01
    12   2.1161   9607.85    -0.10   -5286.02     0.35
    13   2.1215   9461.60     0.12   -5301.89    -0.04
    14   2.1215   9461.45     0.07   -5301.80     0.06
    15   2.1215   9461.31     0.04   -5301.82     0.06
    16   3.1018  16112.11    -0.04   -7470.08    -0.08
    17   3.1018  16112.00    -0.06   -7470.02     0.00
    18   3.1018  16112.03     0.08   -7470.05    -0.01
    19   3.2658  12144.40     0.08   -7133.01    -0.01
    20   3.2658  12144.20    -0.06   -7132.95     0.02
    21   3.2658  12144.13    -0.07   -7132.89     0.05
    22   3.2737  12018.52     0.18   -7071.66    -0.12
    23   3.3121  11564.47    -0.00   -6738.23    -0.02
    24   4.2406  18700.75    -0.03   -9526.27    -0.01
    25   4.2406  18700.65    -0.05   -9526.26    -0.03

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.

14QR562    quality flag:3

Type:     11:2EEEEEE11:2EEEEEE11:2EEEEEE

axisobj        95.752    95.839    95.666
ecceobj         0.583     0.584     0.583
incobj         28.253    28.253    28.252
qmin           39.162    38.605    39.181
qmax          152.425   153.176   151.746
amean          93.815    93.815    93.815
amin           92.228    92.156    92.278
amax           96.269    96.353    96.220
emean           0.570     0.575     0.566
emin            0.559     0.562     0.552
emax            0.584     0.590     0.583
imean          27.484    26.972    27.859
imin           26.892    26.516    26.897
imax           27.762    27.576    28.404
excite_mean     0.733     0.733     0.734
fracstop        1.000     1.000     1.000
cjmean          2.895     2.894     2.895

libcent 0       178.5     183.6     177.8
libamp  0       138.2     167.8     125.9
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       255.7     286.6     245.3
kozaiamp         38.0      66.2      27.7