Orbit Fit and Astrometric record for 14QX441

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: 14QX441   
# Created Mon Oct 23 01:38:28 2017
# Orbit generated from Bernstein formalism
# Fitting   32 observations of   32
# Arc:   3.17y
# First observation: 2011/10/05
#  Last observation: 2014/12/07
Preliminary a, adot, b, bdot, g, gdot:
   0.000073   0.027469   0.000003   0.009469   0.028308   0.000000
# Chi-squared of fit:     8.95 DOF:   58 RMS:  0.09
# Min/Max residuals:    -0.28    0.17
# Exact a, adot, b, bdot, g, gdot:
  1.496565E-05  2.755971E-02  6.495287E-06  9.529257E-03  2.770727E-02  1.383779E-04
# Covariance matrix:
  3.3669E-13 -3.8120E-13  3.8560E-14 -1.0331E-13 -2.5321E-13 -3.2597E-12
 -3.8120E-13  1.0129E-12 -1.2922E-13  3.4395E-13  9.1654E-13  1.0891E-11
  3.8560E-14 -1.2922E-13  2.6379E-13 -1.3443E-13 -1.2410E-13 -1.4467E-12
 -1.0331E-13  3.4395E-13 -1.3443E-13  1.6081E-13  3.2375E-13  3.8474E-12
 -2.5321E-13  9.1654E-13 -1.2410E-13  3.2375E-13  1.0797E-12  1.0364E-11
 -3.2597E-12  1.0891E-11 -1.4467E-12  3.8474E-12  1.0364E-11  1.2188E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
  -18.385086    2.139336   -0.164948   -0.309954   -0.932549  2455839.933426
# Heliocentric elements and errors
Epoch:              2455830.5000  =  2011/09/26
Mean Anomaly:           13.42743 +/-     0.466
Argument of Peri:      300.67282 +/-     0.511
Long of Asc Node:       44.00252 +/-     0.001
Inclination:            25.94974 +/-     0.000
Eccentricity:         0.04371560 +/-    0.0001
Semi-Major Axis:     38.66895486 +/-    0.0036
Time of Perihelion: 2452554.5867 +/-     113.7
Perihelion:          36.97851848 +/-    0.0047
Aphelion:            40.35939125 +/-    0.0050
Period (y)              240.4650 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           35.20505748 +/-    0.0013
Ecliptic Y            1.48148128 +/-    0.0001
Ecliptic Z          -11.38314458 +/-    0.0004
Ecliptic XDOT         0.00020463 +/-    0.0000
Ecliptic YDOT         0.00273814 +/-    0.0000
Ecliptic ZDOT         0.00088931 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.02927004 +/-    0.0012
Geocenter to KBO     36.09161010 +/-    0.0014
# Hcoef:  5.75

The following table shows the complete astrometric record for 14QX441. 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 (14QX441) followed by the observatory code and reference code for the source of the astrometry.

2011 10  05.43266  00 37 49.709  -15 58 44.33  21.0i 14QX441   F51  C~1vXi      
2011 10  05.44410  00 37 49.632  -15 58 44.47  20.8i 14QX441   F51  C~1vXi      
2011 10  05.45693  00 37 49.557  -15 58 44.78  20.8r 14QX441   F51  C~1vXi      
2011 10  05.46758  00 37 49.500  -15 58 45.03  20.8r 14QX441   F51  C~1vXi      
2012 10  10.36349  00 42 20.485  -14 51 39.52  21.1w 14QX441   F51  C~1vXi      
2012 10  10.37740  00 42 20.410  -14 51 39.78  21.2w 14QX441   F51  C~1vXi      
2012 10  10.39134  00 42 20.333  -14 51 40.05  21.1w 14QX441   F51  C~1vXi      
2012 10  10.40525  00 42 20.256  -14 51 40.44  21.2w 14QX441   F51  C~1vXi      
2013 11  23.22738  00 43 58.553  -13 46 34.52  21.1r 14QX441   F51  C~1vXi      
2013 11  23.23877  00 43 58.507  -13 46 34.18  21.0r 14QX441   F51  C~1vXi      
2013 11  23.25157  00 43 58.474  -13 46 34.21  20.8i 14QX441   F51  C~1vXi      
2013 11  23.26430  00 43 58.427  -13 46 33.98  20.8i 14QX441   F51  C~1vXi      
2014 08  22.52532  00 56 08.163  -12 06 38.81  21.1w 14QX441   F51  C~1vXi      
2014 08  22.53648  00 56 08.125  -12 06 39.14  21.2w 14QX441   F51  C~1vXi      
2014 08  22.54766  00 56 08.083  -12 06 39.57  21.1w 14QX441   F51  C~1vXi      
2014 08  22.55887  00 56 08.047  -12 06 39.92  21.2w 14QX441   F51  C~1vXi      
2014 09  14.44818  00 54 30.995  -12 19 53.88  20.9i 14QX441   F51  C~1vXi      
2014 09  14.45985  00 54 30.938  -12 19 54.17  20.8i 14QX441   F51  C~1vXi      
2014 09  14.47146  00 54 30.880  -12 19 54.51  20.7i 14QX441   F51  C~1vXi      
2014 09  14.48310  00 54 30.825  -12 19 55.17  20.8i 14QX441   F51  C~1vXi      
2014 09  22.47288  00 53 50.623  -12 24 12.29  21.1w 14QX441   F51  C~1vXi      
2014 09  22.48567  00 53 50.558  -12 24 12.59  21.1w 14QX441   F51  C~1vXi      
2014 09  22.49851  00 53 50.486  -12 24 13.06  21.2w 14QX441   F51  C~1vXi      
2014 09  22.51135  00 53 50.419  -12 24 13.49  21.2w 14QX441   F51  C~1vXi      
2014 09  24.44139  00 53 40.406  -12 25 12.64  21.2w 14QX441   F51  C~1vXi      
2014 09  24.45419  00 53 40.340  -12 25 13.07  21.3w 14QX441   F51  C~1vXi      
2014 09  24.46702  00 53 40.248  -12 25 13.44  21.4w 14QX441   F51  C~1vXi      
2014 09  24.47988  00 53 40.195  -12 25 13.81  21.4w 14QX441   F51  C~1vXi      
2014 12  07.21556  00 48 13.194  -12 34 23.34  21.1i 14QX441   F51  C~1vXi      
2014 12  07.22859  00 48 13.158  -12 34 22.92  21.0i 14QX441   F51  C~1vXi      
2014 12  07.24160  00 48 13.122  -12 34 22.81  21.0i 14QX441   F51  C~1vXi      
2014 12  07.25466  00 48 13.102  -12 34 22.50  20.8i 14QX441   F51  C~1vXi      

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     0.16       0.00    -0.22
  2   0.0000     -1.07     0.03       0.33    -0.02
  3   0.0001     -2.18    -0.03       0.50    -0.00
  4   0.0001     -3.03    -0.00       0.61    -0.02
  5   1.0156   5235.85    -0.08    2032.37     0.09
  6   1.0156   5234.75    -0.05    2032.59     0.11
  7   1.0156   5233.62    -0.05    2032.81     0.13
  8   1.0157   5232.45    -0.10    2032.93     0.04
  9   2.1350   8170.62     0.02    4984.18    -0.10
 10   2.1350   8170.16     0.00    4984.77     0.14
 11   2.1350   8169.71     0.05    4984.95    -0.08
 12   2.1351   8169.18     0.03    4985.45     0.03
 13   2.8805  20441.02     0.09    5885.57     0.04
 14   2.8805  20440.37     0.14    5885.51     0.08
 15   2.8805  20439.62     0.09    5885.39     0.05
 16   2.8806  20438.99     0.17    5885.30     0.07
 17   2.9432  18797.50    -0.04    5778.18    -0.13
 18   2.9433  18796.62     0.01    5778.28    -0.05
 19   2.9433  18795.69     0.03    5778.33    -0.00
 20   2.9433  18794.67    -0.05    5778.08    -0.27
 21   2.9652  18146.92    -0.07    5798.04     0.05
 22   2.9652  18145.92     0.00    5798.18     0.12
 23   2.9653  18144.76    -0.09    5798.21     0.08
 24   2.9653  18143.68    -0.09    5798.24     0.05
 25   2.9706  17984.54     0.02    5807.58    -0.01
 26   2.9706  17983.48     0.03    5807.60    -0.06
 27   2.9707  17982.09    -0.28    5807.85     0.10
 28   2.9707  17981.22    -0.07    5807.84     0.03
 29   3.1726  13387.97     0.12    7352.55    -0.14
 30   3.1726  13387.67     0.08    7353.16     0.04
 31   3.1726  13387.24    -0.09    7353.48    -0.06
 32   3.1727  13387.11     0.04    7353.89    -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.

14QX441    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        38.676    38.686    38.666
ecceobj         0.044     0.044     0.044
incobj         25.951    25.951    25.951
qmin           36.396    36.502    36.520
qmax           40.681    40.700    40.622
amean          38.504    38.516    38.474
amin           38.221    38.233    38.172
amax           38.792    38.810    38.783
emean           0.036     0.036     0.030
emin            0.023     0.025     0.013
emax            0.050     0.050     0.048
imean          24.773    24.773    24.782
imin           24.110    24.109    24.117
imax           25.457    25.408    25.422
excite_mean     0.421     0.421     0.420
fracstop        1.000     1.000     1.000
cjmean          2.834     2.834     2.834

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       182.3     181.7     181.5
kozaiamp        180.0     180.0     179.9