Orbit Fit and Astrometric record for 14QF433

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: 14QF433   
# Created Fri Dec 15 02:38:01 2017
# Orbit generated from Bernstein formalism
# Fitting   26 observations of   26
# Arc:   0.91y
# First observation: 2014/08/24
#  Last observation: 2015/07/21
Preliminary a, adot, b, bdot, g, gdot:
  -0.000005   0.022537  -0.000001  -0.000898   0.023300   0.000000
# Chi-squared of fit:    11.67 DOF:   46 RMS:  0.12
# Min/Max residuals:    -0.21    0.34
# Exact a, adot, b, bdot, g, gdot:
  1.368163E-05  2.266923E-02 -1.810512E-06 -9.020848E-04  2.340077E-02  3.024391E-03
# Covariance matrix:
  1.2169E-13  6.9194E-12 -4.9637E-16 -1.6717E-13  1.9702E-12  2.4439E-10
  6.9194E-12  2.3451E-09 -4.1406E-15 -5.2964E-11  5.2133E-10  7.8878E-08
 -4.9637E-16 -4.1406E-15  6.8849E-14 -8.2119E-14 -7.1846E-15 -2.7312E-13
 -1.6717E-13 -5.2964E-11 -8.2119E-14  1.7548E-12 -1.1893E-11 -1.7844E-09
  1.9702E-12  5.2133E-10 -7.1846E-15 -1.1893E-11  1.2127E-10  1.7653E-08
  2.4439E-10  7.8878E-08 -2.7312E-13 -1.7844E-09  1.7653E-08  2.6561E-06
#      lat0       lon0       xBary       yBary       zBary        JD0
   -4.253261  -35.111610   -0.107301   -0.074681   -1.005318  2456893.918830
# Heliocentric elements and errors
Epoch:              2456890.5000  =  2014/08/21
Mean Anomaly:           60.09597 +/-     2.149
Argument of Peri:      165.50033 +/-     6.335
Long of Asc Node:       83.89543 +/-     0.060
Inclination:             4.74266 +/-     0.003
Eccentricity:         0.14482241 +/-    0.0730
Semi-Major Axis:     46.26952268 +/-    1.0973
Time of Perihelion: 2437700.1105 +/-      69.4
Perihelion:          39.56865872 +/-    3.5072
Aphelion:            52.97038664 +/-    3.6053
Period (y)              314.7391 +/-     11.20
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           35.74568130 +/-    0.0164
Ecliptic Y          -25.00154030 +/-    0.0115
Ecliptic Z           -3.16938884 +/-    0.0015
Ecliptic XDOT         0.00180291 +/-    0.0002
Ecliptic YDOT         0.00196684 +/-    0.0001
Ecliptic ZDOT        -0.00013138 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.73643533 +/-    0.0149
Geocenter to KBO     42.73362879 +/-    0.0201
# Hcoef:  5.95

The following table shows the complete astrometric record for 14QF433. 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 (14QF433) followed by the observatory code and reference code for the source of the astrometry.

2014 08  24.418052 21 54 38.745  -17 13 47.33  21.9R 14QF433   F51  C~18IN      
2014 08  24.428637 21 54 38.685  -17 13 47.64  21.5R 14QF433   F51  C~18IN      
2014 08  24.439250 21 54 38.638  -17 13 47.80  21.5R 14QF433   F51  C~18IN      
2014 08  25.414950 21 54 34.218  -17 14 10.85  21.6R 14QF433   F51  C~18IN      
2014 08  25.425524 21 54 34.179  -17 14 11.11  21.5R 14QF433   F51  C~18IN      
2014 08  25.436100 21 54 34.123  -17 14 11.30  21.2R 14QF433   F51  C~18IN      
2014 08  25.446705 21 54 34.074  -17 14 11.51  21.8R 14QF433   F51  C~18IN      
2014 08  27.004118 21 54 27.070  -17 14 46.96  21.2R 14QF433   J04  C~19AS      
2014 08  27.020615 21 54 26.988  -17 14 47.64  21.7R 14QF433   J04  C~19AS      
2014 08  27.316918 21 54 25.665  -17 14 54.37  22.3R 14QF433   568  C~18IN      
2014 08  27.318171 21 54 25.664  -17 14 54.41  22.2R 14QF433   568  C~18IN      
2014 08  27.319424 21 54 25.655  -17 14 54.50  22.1R 14QF433   568  C~18IN      
2014 08  27.339943 21 54 25.565  -17 14 54.90  22.6R 14QF433   568  C~18IN      
2014 08  27.341196 21 54 25.556  -17 14 54.95  22.5R 14QF433   568  C~18IN      
2014 08  27.342450 21 54 25.549  -17 14 54.92  22.4R 14QF433   568  C~18IN      
2014 08  27.382126 21 54 25.371  -17 14 55.87  22.2R 14QF433   568  C~18IN      
2014 08  27.383384 21 54 25.368  -17 14 55.92  22.2R 14QF433   568  C~18IN      
2014 08  27.384637 21 54 25.357  -17 14 55.96  22.1R 14QF433   568  C~18IN      
2014 09  04.313822 21 53 50.295  -17 17 49.90  21.8R 14QF433   568  C~18IN      
2014 09  04.362344 21 53 50.084  -17 17 50.94  21.7R 14QF433   568  C~18IN      
2014 09  19.349332 21 52 48.778  -17 22 34.70  22.1R 14QF433   568  C~19AS      
2014 09  19.400689 21 52 48.568  -17 22 35.55  22.7R 14QF433   568  C~19AS      
2015 07  16.543521 22 02 31.921  -16 34 11.68  22.0R 14QF433   568  C~1Ubk      
2015 07  16.600348 22 02 31.717  -16 34 12.96  21.8R 14QF433   568  C~1Ubk      
2015 07  21.545314 22 02 13.697  -16 36 07.80  22.5R 14QF433   568  C~1Ubk      
2015 07  21.564608 22 02 13.629  -16 36 08.24  22.5R 14QF433   568  C~1Ubk      

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     0.34       0.00     0.25
  2   0.0000     -0.91     0.16       0.00     0.24
  3   0.0001     -1.60     0.22       0.08     0.31
  4   0.0027    -68.99    -0.14      -0.02    -0.04
  5   0.0028    -69.60    -0.02      -0.07    -0.10
  6   0.0028    -70.42    -0.10       0.02    -0.01
  7   0.0028    -71.15    -0.09       0.06     0.02
  8   0.0071   -177.57     0.10       0.90     0.27
  9   0.0071   -178.90    -0.10       0.66     0.01
 10   0.0079   -199.02    -0.08       0.78    -0.01
 11   0.0079   -199.04    -0.02       0.75    -0.04
 12   0.0079   -199.19    -0.09       0.71    -0.08
 13   0.0080   -200.54    -0.02       0.77    -0.04
 14   0.0080   -200.68    -0.07       0.77    -0.04
 15   0.0080   -200.77    -0.06       0.83     0.02
 16   0.0081   -203.49    -0.03       0.80    -0.04
 17   0.0081   -203.54    -0.00       0.77    -0.07
 18   0.0081   -203.71    -0.08       0.79    -0.05
 19   0.0298   -735.14    -0.00       7.99    -0.18
 20   0.0300   -738.34     0.04       8.04    -0.21
 21   0.0710  -1660.39     0.10      38.73    -0.14
 22   0.0711  -1663.51    -0.05      38.95    -0.09
 23   0.8929   7196.56     0.02    -116.35     0.00
 24   0.8930   7193.36     0.03    -116.52     0.01
 25   0.9066   6910.17    -0.07    -133.47     0.02
 26   0.9066   6909.10     0.02    -133.54     0.00

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.

14QF433    quality flag:1

Type:      CLASSICAL  SCATNEAR CLASSICAL

axisobj        46.494    52.327    45.111
ecceobj         0.145     0.346     0.038
incobj          4.747     4.755     4.740
qmin           39.210    31.752    42.616
qmax           54.172    78.952    47.772
amean          46.523    52.575    45.095
amin           46.132    48.190    44.747
amax           46.965    55.790    45.466
emean           0.141     0.359     0.038
emin            0.127     0.312     0.024
emax            0.154     0.415     0.051
imean           2.896     3.872     3.059
imin            2.385     0.307     2.636
imax            3.439     8.550     3.532
excite_mean     0.150     0.368     0.066
fracstop        1.000     1.000     1.000
cjmean          3.105     3.029     3.110

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       191.9     191.4     173.4
kozaiamp        180.0     179.9     180.0