Orbit Fit and Astrometric record for 14QY562

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: 14QY562   
# Created Fri Dec  3 02:12:34 2021
# Orbit generated from Bernstein formalism
# Fitting     18 observations of     18
# Arc:   4.29y
# First observation: 2014/08/19
#  Last observation: 2018/12/02
Preliminary a, adot, b, bdot, g, gdot:
   0.000022   0.016424  -0.000022  -0.005437   0.020477   0.000000
# Chi-squared of fit:     5.99 DOF:     30 RMS:  0.10
# Min/Max residuals:    -0.20    0.16
# Exact a, adot, b, bdot, g, gdot:
  1.323911E-05  1.643801E-02 -4.766527E-06 -5.459767E-03  2.044310E-02  2.613285E-03
# Covariance matrix:
  3.9443E-13 -3.4670E-15  2.4244E-14 -2.6605E-14  2.1830E-13  1.1731E-12
 -3.4670E-15  2.6451E-13  5.5150E-14 -1.2232E-13  2.1107E-13  5.3081E-12
  2.4244E-14  5.5150E-14  2.6134E-13 -1.0244E-13  5.9445E-14  1.2377E-12
 -2.6605E-14 -1.2232E-13 -1.0244E-13  9.8428E-14 -9.8416E-14 -2.8410E-12
  2.1830E-13  2.1107E-13  5.9445E-14 -9.8416E-14  3.8193E-13  4.2937E-12
  1.1731E-12  5.3081E-12  1.2377E-12 -2.8410E-12  4.2937E-12  1.2323E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
  -20.202947   25.782094    0.875881   -0.176851   -0.480970  2456888.870308
# Heliocentric elements and errors
Epoch:              2456880.5000  =  2014/08/11
Mean Anomaly:          115.31661 +/-     0.160
Argument of Peri:       98.66765 +/-     0.146
Long of Asc Node:      159.55771 +/-     0.001
Inclination:            27.17067 +/-     0.000
Eccentricity:         0.15286120 +/-    0.0004
Semi-Major Axis:     45.63409329 +/-    0.0075
Time of Perihelion: 2420812.5093 +/-      49.2
Perihelion:          38.65841092 +/-    0.0205
Aphelion:            52.60977566 +/-    0.0213
Period (y)              308.2779 +/-      0.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           42.17670681 +/-    0.0013
Ecliptic Y           19.40335210 +/-    0.0006
Ecliptic Z          -16.89328200 +/-    0.0005
Ecliptic XDOT        -0.00089404 +/-    0.0000
Ecliptic YDOT         0.00201106 +/-    0.0000
Ecliptic ZDOT        -0.00080696 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   49.40392339 +/-    0.0011
Geocenter to KBO     48.91625198 +/-    0.0015
# Hcoef:  6.58

The following table shows the complete astrometric record for 14QY562. 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 (14QY562) followed by the observatory code and reference code for the source of the astrometry.

2014 08  19.36953  02 04 49.123  -08 53 12.05  23.9r 14QY562   W84  C~52Ts      
2014 09  30.26447  02 03 05.985  -09 16 52.17  23.9g 14QY562   W84  C~52Ts      
2014 10  02.36814  02 02 58.478  -09 17 58.99  23.6r 14QY562   W84  C~52Ts      
2014 10  03.28614  02 02 55.158  -09 18 27.99  23.1i 14QY562   W84  C~52Ts      
2014 12  20.15207  01 58 25.872  -09 35 10.16  23.2i 14QY562   W84  C~52Ts      
2014 12  23.06997  01 58 20.557  -09 34 38.57  23.6r 14QY562   W84  C~52Ts      
2016 09  08.35002  02 12 12.548  -08 58 38.96  24.0g 14QY562   W84  C~52Ts      
2016 12  06.08652  02 06 59.817  -09 30 38.29  23.7i 14QY562   W84  C~52Ts      
2017 08  21.40018  02 16 42.260  -08 45 01.16  24.2r 14QY562   W84  C~52Ts      
2017 10  16.24533  02 14 09.206  -09 15 28.57  23.5r 14QY562   W84  C~52Ts      
2017 10  18.28531  02 14 01.244  -09 16 23.34  22.4i 14QY562   W84  C~52Ts      
2017 10  18.28669  02 14 01.238  -09 16 23.31  23.3r 14QY562   W84  C~52Ts      
2017 11  01.15891  02 13 05.988  -09 21 45.44  22.8z 14QY562   W84  C~52Ts      
2018 01  09.09472  02 09 55.711  -09 21 06.21  23.9r 14QY562   W84  C~52Ts      
2018 01  09.09609  02 09 55.710  -09 21 06.01  23.6i 14QY562   W84  C~52Ts      
2018 10  20.23742  02 17 53.549  -09 13 39.16  22.7z 14QY562   W84  C~52Ts      
2018 11  28.19097  02 15 23.833  -09 23 52.93  23.6r 14QY562   W84  C~52Ts      
2018 12  02.20844  02 15 10.536  -09 24 05.61  24.3g 14QY562   W84  C~52Ts      

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    -0.11       0.00     0.11
     2   0.1147  -1938.19     0.06    -770.85     0.04
     3   0.1205  -2065.97     0.06    -793.00     0.02
     4   0.1230  -2122.28    -0.08    -802.28    -0.13
     5   0.3362  -6202.29     0.13    -303.51     0.06
     6   0.3441  -6264.42    -0.10    -245.83    -0.05
     7   2.0561   6000.50    -0.03   -2702.68    -0.18
     8   2.2990    987.17     0.15   -2795.93     0.14
     9   3.0062  10024.70     0.02   -3417.63     0.06
    10   3.1591   7237.61    -0.08   -4278.67     0.04
    11   3.1647   7107.67    -0.01   -4286.11    -0.20
    12   3.1647   7107.60     0.01   -4286.05    -0.13
    13   3.2027   6227.52     0.13   -4284.18     0.02
    14   3.3914   3619.89    -0.11   -3213.34    -0.04
    15   3.3914   3619.95    -0.04   -3213.15     0.12
    16   4.1694  10371.38     0.08   -5408.19     0.16
    17   4.2760   8079.97     0.12   -5156.39    -0.07
    18   4.2870   7892.05    -0.19   -5095.34     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.

14QY562    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        45.966    45.989    45.944
ecceobj         0.151     0.152     0.150
incobj         27.082    27.083    27.082
qmin           38.201    38.169    38.200
qmax           53.623    53.606    53.497
amean          45.705    45.727    45.683
amin           45.340    45.351    45.305
amax           46.133    46.138    46.094
emean           0.147     0.148     0.147
emin            0.134     0.135     0.133
emax            0.162     0.162     0.161
imean          26.423    26.426    26.421
imin           26.094    26.090    26.093
imax           26.762    26.767    26.763
excite_mean     0.469     0.469     0.469
fracstop        1.000     1.000     1.000
cjmean          2.841     2.841     2.841

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       179.4     179.6     179.4
kozaiamp        180.0     179.9     180.0