Orbit Fit and Astrometric record for 14QG562

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: 14QG562   
# Created Fri Dec  3 02:12:34 2021
# Orbit generated from Bernstein formalism
# Fitting     24 observations of     24
# Arc:   4.86y
# First observation: 2013/12/28
#  Last observation: 2018/11/07
Preliminary a, adot, b, bdot, g, gdot:
  -0.000233   0.025332   0.000031  -0.004074   0.024709   0.000000
# Chi-squared of fit:    10.63 DOF:     42 RMS:  0.12
# Min/Max residuals:    -0.29    0.30
# Exact a, adot, b, bdot, g, gdot:
  1.759795E-05  2.504123E-02 -2.464522E-06 -4.023123E-03  2.442243E-02  1.614835E-03
# Covariance matrix:
  5.2055E-13 -3.4627E-13 -3.8383E-14  4.1546E-14 -1.1173E-13 -1.9406E-12
 -3.4627E-13  4.1841E-13  5.0811E-14 -6.3671E-14 -2.1809E-14  2.6896E-12
 -3.8383E-14  5.0811E-14  2.7537E-13 -9.3588E-14  3.5705E-15  3.6196E-13
  4.1546E-14 -6.3671E-14 -9.3588E-14  4.5518E-14  6.6666E-15 -4.4390E-13
 -1.1173E-13 -2.1809E-14  3.5705E-15  6.6666E-15  2.1647E-13  3.3910E-14
 -1.9406E-12  2.6896E-12  3.6196E-13 -4.4390E-13  3.3910E-14  1.9026E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -13.070210   28.938261   -0.905368   -0.085312   -0.368160  2456654.613468
# Heliocentric elements and errors
Epoch:              2456650.5000  =  2013/12/24
Mean Anomaly:           26.70954 +/-     0.033
Argument of Peri:      199.64309 +/-     0.050
Long of Asc Node:      155.12385 +/-     0.001
Inclination:            15.65921 +/-     0.000
Eccentricity:         0.15712243 +/-    0.0002
Semi-Major Axis:     47.72380602 +/-    0.0065
Time of Perihelion: 2447716.1089 +/-      10.9
Perihelion:          40.22532580 +/-    0.0096
Aphelion:            55.22228623 +/-    0.0109
Period (y)              329.6938 +/-      0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           34.79651894 +/-    0.0007
Ecliptic Y           20.27722073 +/-    0.0004
Ecliptic Z           -9.25988016 +/-    0.0002
Ecliptic XDOT        -0.00129933 +/-    0.0000
Ecliptic YDOT         0.00249041 +/-    0.0000
Ecliptic ZDOT        -0.00048012 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.32443335 +/-    0.0006
Geocenter to KBO     40.94595976 +/-    0.0008
# Hcoef:  7.64

The following table shows the complete astrometric record for 14QG562. 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 (14QG562) followed by the observatory code and reference code for the source of the astrometry.

2013 12  28.11269  02 05 59.993  -01 08 45.34  24.3r 14QG562   W84  C~52Tq      
2013 12  28.11407  02 06 00.021  -01 08 45.20  23.4i 14QG562   W84  C~52Tq      
2014 08  19.38618  02 19 10.723  -00 06 27.14  23.1i 14QG562   W84  C~52Tq      
2014 10  21.25060  02 15 55.611  -00 38 15.61  24.2r 14QG562   W84  C~52Tq      
2014 12  16.13344  02 12 08.775  -00 52 38.57  23.6r 14QG562   W84  C~52Tq      
2015 01  16.06633  02 11 24.825  -00 47 37.65  23.3r 14QG562   W84  C~52Tq      
2015 12  17.13216  02 17 47.871  -00 35 41.29  23.3r 14QG562   W84  C~52Tq      
2016 01  03.10590  02 17 12.305  -00 34 06.07  24.2g 14QG562   W84  C~52Tq      
2016 09  10.31040  02 29 50.999  +00 16 32.81  23.4i 14QG562   W84  C~52Tq      
2016 09  27.46491  02 28 58.18   +00 07 35.8   24.3g 14QG562   568  C~2eAI      
2016 09  27.52550  02 28 57.96   +00 07 33.9   24.3g 14QG562   568  C~2eAI      
2016 09  28.47413  02 28 54.50   +00 07 04.0   24.4g 14QG562   568  C~2eAI      
2016 09  28.59436  02 28 54.05   +00 07 00.2   24.5g 14QG562   568  C~2eAI      
2016 09  29.48603  02 28 50.76   +00 06 32.1   24.3g 14QG562   568  C~2eAI      
2016 09  29.60655  02 28 50.30   +00 06 28.3   24.5g 14QG562   568  C~2eAI      
2016 11  04.17384  02 26 15.560  -00 10 16.20  24.3g 14QG562   W84  C~52Tq      
2016 11  04.17522  02 26 15.552  -00 10 16.28  23.6r 14QG562   W84  C~52Tq      
2016 11  04.17659  02 26 15.548  -00 10 16.22  23.6i 14QG562   W84  C~52Tq      
2016 11  04.19451  02 26 15.468  -00 10 16.68  24.3g 14QG562   W84  C~52Tq      
2016 11  04.19588  02 26 15.463  -00 10 16.67  23.6r 14QG562   W84  C~52Tq      
2016 11  04.19726  02 26 15.452  -00 10 16.70  23.9i 14QG562   W84  C~52Tq      
2018 11  07.23370  02 37 22.925  +00 22 36.00  24.2r 14QG562   W84  C~52Tq      
2018 11  07.23508  02 37 22.950  +00 22 36.08  23.5i 14QG562   W84  C~52Tq      
2018 11  07.23646  02 37 22.919  +00 22 36.11  24.3g 14QG562   W84  C~52Tq      

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    -0.29       0.00    -0.03
     2   0.0000      0.44     0.19      -0.01    -0.07
     3   0.6414  12434.35     0.05    -630.91    -0.11
     4   0.8135   9016.62    -0.02   -1399.36    -0.11
     5   0.9665   5522.50    -0.16   -1021.08     0.12
     6   1.0512   5009.21     0.30    -509.05     0.15
     7   1.9686  10652.33    -0.18   -1842.99     0.08
     8   2.0150  10184.34     0.23   -1567.16    -0.05
     9   2.7028  21985.20    -0.18   -2699.12     0.03
    10   2.7498  21045.28    -0.01   -2926.49     0.07
    11   2.7499  21041.49     0.06   -2927.12     0.05
    12   2.7525  20981.81     0.02   -2937.04     0.09
    13   2.7529  20974.08     0.05   -2938.24     0.07
    14   2.7553  20917.44     0.12   -2947.36     0.02
    15   2.7556  20909.57     0.11   -2948.51     0.02
    16   2.8530  18360.74    -0.08   -3078.42    -0.03
    17   2.8530  18360.60    -0.12   -3078.46    -0.07
    18   2.8530  18360.56    -0.06   -3078.38     0.00
    19   2.8531  18359.27    -0.01   -3078.39    -0.07
    20   2.8531  18359.20     0.02   -3078.35    -0.04
    21   2.8531  18359.03    -0.04   -3078.32    -0.01
    22   4.8600  28565.69    -0.21   -4747.65    -0.05
    23   4.8600  28566.08     0.28   -4747.71    -0.11
    24   4.8600  28565.64    -0.05   -4747.51     0.07

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.

14QG562    quality flag:3

Type:           2:1E      2:1E      2:1E

axisobj        48.072    48.093    48.052
ecceobj         0.164     0.164     0.163
incobj         15.626    15.626    15.626
qmin           38.889    36.182    36.340
qmax           57.279    60.303    60.194
amean          47.797    47.797    47.796
amin           47.305    47.285    47.240
amax           48.340    48.413    48.430
emean           0.119     0.192     0.188
emin            0.008     0.137     0.141
emax            0.186     0.246     0.243
imean          15.704    14.076    13.254
imin           14.182    12.541    11.094
imax           17.303    15.474    14.984
excite_mean     0.298     0.311     0.298
fracstop        1.000     1.000     1.000
cjmean          3.036     3.027     3.037

libcent 0       176.7      91.8     177.1
libamp  0       141.9      45.8     140.8
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       135.3     181.2     242.6
kozaiamp        180.0     180.0      41.0