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 Sat May 10 01:10:03 2025
# Orbit generated from Bernstein formalism
# Fitting     28 observations of     28
# Arc:   4.86y
# First observation: 2013/12/28
#  Last observation: 2018/11/07
Preliminary a, adot, b, bdot, g, gdot:
  -0.000193   0.025340   0.000034  -0.004077   0.024570   0.000000
# Chi-squared of fit:    11.25 DOF:     50 RMS:  0.11
# Min/Max residuals:    -0.29    0.29
# Exact a, adot, b, bdot, g, gdot:
  1.760489E-05  2.504124E-02 -2.463652E-06 -4.023124E-03  2.442240E-02  1.614850E-03
# Covariance matrix:
  5.1777E-13 -3.4727E-13 -3.9720E-14  4.1622E-14 -1.0102E-13 -1.9422E-12
 -3.4727E-13  4.1518E-13  5.2904E-14 -6.2397E-14 -1.2016E-14  2.6719E-12
 -3.9720E-14  5.2904E-14  2.7243E-13 -9.4666E-14  3.3791E-15  3.7651E-13
  4.1622E-14 -6.2397E-14 -9.4666E-14  4.4975E-14  3.7828E-15 -4.3642E-13
 -1.0102E-13 -1.2016E-14  3.3791E-15  3.7828E-15  1.6282E-13  7.5641E-14
 -1.9422E-12  2.6719E-12  3.7651E-13 -4.3642E-13  7.5641E-14  1.8923E-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:           26.70872 +/-     0.033
Argument of Peri:      199.64383 +/-     0.049
Long of Asc Node:      155.12385 +/-     0.001
Inclination:            15.65921 +/-     0.000
Eccentricity:         0.15712696 +/-    0.0002
Semi-Major Axis:     47.72414392 +/-    0.0060
Time of Perihelion: 2447716.2881 +/-      10.8
Perihelion:          40.22539407 +/-    0.0092
Aphelion:            55.22289378 +/-    0.0103
Period (y)              329.6973 +/-      0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           34.79656476 +/-    0.0006
Ecliptic Y           20.27724639 +/-    0.0003
Ecliptic Z           -9.25989231 +/-    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   41.32448725 +/-    0.0005
Geocenter to KBO     40.94601367 +/-    0.0007
# Hcoef:  7.69

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  07.53553  02 29 57.62   +00 17 56.8   24.2r 14QG562   T09  C~8r6B      
2016 09  07.61543  02 29 57.44   +00 17 54.4   24.1r 14QG562   T09  C~8r6B      
2016 09  07.61827  02 29 57.44   +00 17 54.4   24.1r 14QG562   T09  C~8r6B      
2016 09  07.62463  02 29 57.42   +00 17 54.2   24.2r 14QG562   T09  C~8r6B      
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     0.18      -0.01    -0.07
     3   0.6414  12434.35     0.06    -630.91    -0.11
     4   0.8135   9016.62    -0.01   -1399.36    -0.11
     5   0.9665   5522.50    -0.16   -1021.08     0.12
     6   1.0512   5009.21     0.29    -509.05     0.15
     7   1.9686  10652.33    -0.19   -1842.99     0.08
     8   2.0150  10184.34     0.23   -1567.16    -0.05
     9   2.6952  22108.96    -0.16   -2654.88     0.01
    10   2.6954  22105.55    -0.03   -2656.19    -0.04
    11   2.6954  22105.55     0.10   -2656.19     0.01
    12   2.6954  22105.20     0.03   -2656.28     0.03
    13   2.7028  21985.20    -0.17   -2699.12     0.03
    14   2.7498  21045.28    -0.01   -2926.49     0.06
    15   2.7499  21041.49     0.06   -2927.12     0.05
    16   2.7525  20981.81     0.03   -2937.04     0.09
    17   2.7529  20974.08     0.05   -2938.24     0.06
    18   2.7553  20917.44     0.12   -2947.36     0.02
    19   2.7556  20909.57     0.12   -2948.51     0.02
    20   2.8530  18360.74    -0.08   -3078.42    -0.04
    21   2.8530  18360.60    -0.12   -3078.46    -0.07
    22   2.8530  18360.56    -0.05   -3078.38     0.00
    23   2.8531  18359.27    -0.01   -3078.39    -0.07
    24   2.8531  18359.20     0.02   -3078.35    -0.04
    25   2.8531  18359.03    -0.04   -3078.32    -0.01
    26   4.8600  28565.69    -0.21   -4747.65    -0.05
    27   4.8600  28566.08     0.28   -4747.71    -0.11
    28   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:2

Type:           2:1E      2:1E  SCATNEAR

axisobj        48.073    48.092    48.054
ecceobj         0.164     0.164     0.163
incobj         15.626    15.626    15.626
qmin           39.440    36.089    38.508
qmax           56.694    60.120    57.829
amean          47.797    47.797    47.796
amin           47.302    47.279    47.310
amax           48.325    48.393    48.377
emean           0.112     0.193     0.125
emin            0.032     0.137     0.022
emax            0.175     0.243     0.195
imean          15.956    14.065    15.277
imin           14.317    12.517    13.808
imax           17.207    15.505    17.091
excite_mean     0.300     0.311     0.294
fracstop        1.000     1.000     1.000
cjmean          3.035     3.027     3.039

libcent 0       170.5      92.1    -180.0
libamp  0       159.6      45.8    -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        93.7     181.0     257.9
kozaiamp        180.0     180.0      65.3