Orbit Fit and Astrometric record for 14QC442

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: 14QC442   
# Created Wed Dec 13 02:38:04 2017
# Orbit generated from Bernstein formalism
# Fitting   20 observations of   20
# Arc:   3.08y
# First observation: 2014/08/25
#  Last observation: 2017/09/23
Preliminary a, adot, b, bdot, g, gdot:
  -0.000031   0.023488  -0.000046   0.007368   0.023075   0.000000
# Chi-squared of fit:    10.65 DOF:   34 RMS:  0.13
# Min/Max residuals:    -0.26    0.31
# Exact a, adot, b, bdot, g, gdot:
  1.476552E-05  2.271960E-02  4.513552E-06  7.107411E-03  2.302759E-02 -9.008544E-03
# Covariance matrix:
  1.5606E-13  1.5481E-13 -9.2225E-15  6.7190E-14  1.4900E-13  2.9665E-12
  1.5481E-13  2.4282E-11 -1.0554E-12  8.2755E-12  7.3068E-12  3.7016E-10
 -9.2225E-15 -1.0554E-12  1.3750E-13 -4.0105E-13 -3.1976E-13 -1.6146E-11
  6.7190E-14  8.2755E-12 -4.0105E-13  2.9170E-12  2.4999E-12  1.2660E-10
  1.4900E-13  7.3068E-12 -3.1976E-13  2.4999E-12  2.3355E-12  1.1176E-10
  2.9665E-12  3.7016E-10 -1.6146E-11  1.2660E-10  1.1176E-10  5.6629E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
   -7.861067   24.432740    0.802637   -0.084546   -0.613074  2456895.062888
# Heliocentric elements and errors
Epoch:              2456890.5000  =  2014/08/21
Mean Anomaly:          336.21258 +/-     0.149
Argument of Peri:       45.09146 +/-     0.193
Long of Asc Node:       46.67818 +/-     0.002
Inclination:            18.98907 +/-     0.001
Eccentricity:         0.50182527 +/-    0.0033
Semi-Major Axis:     69.18078288 +/-    0.2883
Time of Perihelion: 2470777.9163 +/-       2.8
Perihelion:          34.46411760 +/-    0.2709
Aphelion:           103.89744816 +/-    0.4901
Period (y)              575.4219 +/-      3.60
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           40.05862370 +/-    0.0026
Ecliptic Y           17.32063235 +/-    0.0012
Ecliptic Z           -5.93924201 +/-    0.0004
Ecliptic XDOT        -0.00198290 +/-    0.0000
Ecliptic YDOT         0.00206394 +/-    0.0000
Ecliptic ZDOT         0.00098370 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.04511589 +/-    0.0024
Geocenter to KBO     43.42616401 +/-    0.0029
# Hcoef:  5.93

The following table shows the complete astrometric record for 14QC442. 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 (14QC442) followed by the observatory code and reference code for the source of the astrometry.

2014 08  25.56211  01 42 01.880  +02 08 56.53  22.6w 14QC442   F51  C~1vXi      
2014 08  25.57580  01 42 01.837  +02 08 56.00  22.4w 14QC442   F51  C~1vXi      
2014 08  25.58956  01 42 01.799  +02 08 55.94  22.8w 14QC442   F51  C~1vXi      
2014 08  27.58470  01 41 57.255  +02 08 19.49  22.4w 14QC442   F51  C~1vXi      
2014 08  27.59632  01 41 57.229  +02 08 19.32  22.7w 14QC442   F51  C~1vXi      
2014 08  27.60792  01 41 57.195  +02 08 19.23  22.6w 14QC442   F51  C~1vXi      
2014 08  27.61954  01 41 57.173  +02 08 18.83  22.4w 14QC442   F51  C~1vXi      
2014 09  19.46743  01 40 46.796  +02 00 18.64  22.4w 14QC442   F51  C~1vXi      
2014 09  19.47978  01 40 46.748  +02 00 18.55  22.4w 14QC442   F51  C~1vXi      
2014 09  19.49219  01 40 46.707  +02 00 18.11  22.5w 14QC442   F51  C~1vXi      
2014 09  19.50464  01 40 46.664  +02 00 17.69  22.5w 14QC442   F51  C~1vXi      
2014 12  18.27591  01 35 08.289  +01 38 39.13  22.5w 14QC442   F51  C~1vXi      
2014 12  18.28804  01 35 08.241  +01 38 39.24  22.6w 14QC442   F51  C~1vXi      
2014 12  18.30021  01 35 08.229  +01 38 39.53  22.2w 14QC442   F51  C~1vXi      
2015 01  08.22286  01 34 48.168  +01 42 06.75  22.4w 14QC442   F51  C~1vXi      
2015 01  08.23526  01 34 48.169  +01 42 06.87  22.6w 14QC442   F51  C~1vXi      
2015 01  08.24765  01 34 48.171  +01 42 07.25  22.4w 14QC442   F51  C~1vXi      
2015 01  08.26007  01 34 48.148  +01 42 07.26  22.6w 14QC442   F51  C~1vXi      
2017 09  23.36810  01 53 44.092  +04 36 45.84  21.7R 14QC442   G37              
2017 09  23.45540  01 53 43.777  +04 36 44.26        14QC442   G37              

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     0.17       0.00     0.08
  2   0.0000     -0.79    -0.09      -0.26    -0.13
  3   0.0001     -1.35    -0.12      -0.11     0.08
  4   0.0055    -78.04     0.04      -9.40    -0.15
  5   0.0056    -78.46     0.09      -9.41    -0.12
  6   0.0056    -78.97     0.05      -9.31     0.02
  7   0.0056    -79.42     0.07      -9.57    -0.18
  8   0.0682  -1236.72    -0.11     -74.66     0.12
  9   0.0682  -1237.42    -0.06     -74.48     0.31
 10   0.0683  -1238.15    -0.03     -74.67     0.13
 11   0.0683  -1238.91    -0.02     -74.83    -0.02
 12   0.3141  -6439.39     0.12     556.78    -0.22
 13   0.3141  -6440.03    -0.20     557.15    -0.03
 14   0.3141  -6440.09     0.04     557.48     0.13
 15   0.3714  -6645.24     0.04     860.00    -0.01
 16   0.3715  -6645.18     0.05     860.11    -0.09
 17   0.3715  -6645.02     0.17     860.45     0.06
 18   0.3715  -6645.34    -0.20     860.59     0.01
 19   3.0796  13027.01    -0.26    4479.83    -0.07
 20   3.0798  13022.02     0.26    4480.04     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.

14QC442    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        69.930    70.716    69.182
ecceobj         0.504     0.513     0.495
incobj         18.941    18.944    18.938
qmin           33.389    32.662    33.679
qmax          107.848   108.934   104.826
amean          69.266    69.449    68.156
amin           68.046    68.147    67.114
amax           71.073    71.214    69.558
emean           0.497     0.508     0.487
emin            0.475     0.490     0.468
emax            0.520     0.531     0.507
imean          18.919    17.982    18.410
imin           17.272    16.380    17.262
imax           20.660    18.969    19.787
excite_mean     0.593     0.594     0.581
fracstop        1.000     1.000     1.000
cjmean          2.924     2.922     2.934

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       180.0     179.8     175.7
kozaiamp        180.0     179.9     179.9