Orbit Fit and Astrometric record for 14FX61

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: 14FX61    
# Created Wed Dec 13 02:37:59 2017
# Orbit generated from Bernstein formalism
# Fitting   40 observations of   41
# Arc:   2.12y
# First observation: 2014/03/30
#  Last observation: 2016/05/12
Preliminary a, adot, b, bdot, g, gdot:
   0.000004   0.026849  -0.000004   0.010625   0.026679   0.000000
# Chi-squared of fit:    16.32 DOF:   74 RMS:  0.11
# Min/Max residuals:    -0.35    0.33
# Exact a, adot, b, bdot, g, gdot:
  1.642384E-05  2.686547E-02  5.816400E-06  1.059761E-02  2.697080E-02 -2.594870E-03
# Covariance matrix:
  5.4091E-14  1.0735E-13 -1.0420E-15  5.6667E-14  1.0372E-13  2.5355E-12
  1.0735E-13  9.5809E-12 -8.4345E-14  4.5211E-12  3.8552E-12  2.0262E-10
 -1.0420E-15 -8.4345E-14  4.7792E-14 -6.3578E-14 -3.3009E-14 -1.7992E-12
  5.6667E-14  4.5211E-12 -6.3578E-14  2.2045E-12  1.7772E-12  9.6405E-11
  1.0372E-13  3.8552E-12 -3.3009E-14  1.7772E-12  2.0512E-12  7.9612E-11
  2.5355E-12  2.0262E-10 -1.7992E-12  9.6405E-11  7.9612E-11  4.3209E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.133657 -170.305605    0.008676    0.002455   -0.997438  2456746.554703
# Heliocentric elements and errors
Epoch:              2456740.5000  =  2014/03/24
Mean Anomaly:          328.07880 +/-     0.522
Argument of Peri:       42.56691 +/-     0.768
Long of Asc Node:      189.34796 +/-     0.000
Inclination:            21.51452 +/-     0.001
Eccentricity:         0.14505743 +/-    0.0016
Semi-Major Axis:     43.07289138 +/-    0.0187
Time of Perihelion: 2465895.9811 +/-     149.5
Perihelion:          36.82484839 +/-    0.0712
Aphelion:            49.32093437 +/-    0.0726
Period (y)              282.6925 +/-      0.18
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -37.53362445 +/-    0.0019
Ecliptic Y           -6.40148951 +/-    0.0003
Ecliptic Z            0.08668430 +/-    0.0000
Ecliptic XDOT         0.00071578 +/-    0.0000
Ecliptic YDOT        -0.00264664 +/-    0.0000
Ecliptic ZDOT         0.00107529 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   38.07570809 +/-    0.0019
Geocenter to KBO     37.07713032 +/-    0.0020
# Hcoef:  7.78

The following table shows the complete astrometric record for 14FX61. 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 (14FX61) followed by the observatory code and reference code for the source of the astrometry.

2014 03  30.053925 12 35 50.51   -03 43 04.1   23.4w 14FX61    W84  C~143r      
2014 03  30.065200 12 35 50.46   -03 43 03.7   23.6w 14FX61    W84  C~143r      
2014 03  30.076329 12 35 50.40   -03 43 03.4   23.4w 14FX61    W84  C~143r      
2014 03  30.089055 12 35 50.33   -03 43 02.9   23.4w 14FX61    W84  C~143r      
2014 03  30.114996 12 35 50.22   -03 43 01.9   23.4w 14FX61    W84  C~143r      
2014 03  30.126183 12 35 50.17   -03 43 01.5   23.4w 14FX61    W84  C~143r      
2014 03  30.137299 12 35 50.12   -03 43 01.2   23.5w 14FX61    W84  C~143r      
2014 03  30.150522 12 35 50.05   -03 43 00.7   23.4w 14FX61    W84  C~143r      
2014 03  30.160122 12 35 49.99   -03 43 00.2   23.4w 14FX61    W84  C~143r      
2014 03  30.295039 12 35 49.35   -03 42 55.2   23.3w 14FX61    W84  C~143r      
2014 03  30.305870 12 35 49.28   -03 42 54.8   23.5w 14FX61    W84  C~143r      
2014 03  30.334470 12 35 49.16   -03 42 53.9   23.1w 14FX61    W84  C~143r      
2014 03  30.344498 12 35 49.09   -03 42 53.4   23.0w 14FX61    W84  C~143r      
2014 03  30.355501 12 35 49.06   -03 42 53.0   23.1w 14FX61    W84  C~143r      
2014 03  31.085704 12 35 45.57   -03 42 26.1   23.9w 14FX61    W84  C~143r      
2014 03  31.096460 12 35 45.50   -03 42 25.5   23.6w 14FX61    W84  C~143r      
2014 03  31.106041 12 35 45.46   -03 42 25.1   23.6w 14FX61    W84  C~143r      
2014 03  31.117373 12 35 45.41   -03 42 24.5   23.6w 14FX61    W84  C~143r      
2014 03  31.128195 12 35 45.36   -03 42 24.3   23.4w 14FX61    W84  C~143r      
2014 03  31.137803 12 35 45.31   -03 42 23.9   23.5w 14FX61    W84  C~143r      
2014 03  31.148145 12 35 45.26   -03 42 23.6   23.6w 14FX61    W84  C~143r      
2014 03  31.158359 12 35 45.20   -03 42 23.0   23.4w 14FX61    W84  C~143r      
2014 03  31.167978 12 35 45.17   -03 42 22.8   23.6w 14FX61    W84  C~143r      
2014 03  31.178527 12 35 45.11   -03 42 22.5   23.7w 14FX61    W84  C~143r      
2014 03  31.188499 12 35 45.06   -03 42 22.1   23.3w 14FX61    W84  C~143r      
2014 03  31.198109 12 35 45.02   -03 42 21.7   23.3w 14FX61    W84  C~143r      
2014 04  07.171877 12 35 11.71   -03 38 03.3   23.6w 14FX61    W84  C~14R3      
2014 04  07.184958 12 35 11.65   -03 38 03.1   23.4w 14FX61    W84  C~14R3      
2014 04  08.248008 12 35 06.59   -03 37 23.6   23.5w 14FX61    W84  C~14R3      
2014 04  08.258639 12 35 06.52   -03 37 23.5   23.8w 14FX61    W84  C~14R3      
2014 06  15.16817  12 31 41.60   -03 08 27.1   23.6R 14FX61    695  C~18DB      
2014 06  16.15971  12 31 41.24   -03 08 18.8   23.7R 14FX61    695  C~18DB      
2014 06  16.17908  12 31 41.24   -03 08 18.5   23.7R 14FX61    695  C~18DB      
2016 04  16.48285  12 47 45.91   -03 37 30.8   23.6R 14FX61    568  C~1t3j      
2016 04  16.50135  12 47 45.82   -03 37 30.2   23.3R 14FX61    568  C~1t3j      
2016 04  16.51891  12 47 45.75   -03 37 29.5   23.5R 14FX61    568  C~1t3j      
2016 04  16.53631  12 47 45.67   -03 37 29.0   23.3R 14FX61    568  C~1t3j      
2016 05  12.38288  12 45 58.77   -03 23 51.7   23.4R 14FX61    568  C~1t3j      
2016 05  12.39580  12 45 58.74   -03 23 51.6   23.5R 14FX61    568  C~1t3j      
2016 05  12.44118  12 45 58.56   -03 23 50.2   23.5R 14FX61    568  C~1t3j      
2016 05  12.45069  12 45 58.52   -03 23 49.9   23.7R 14FX61    568  C~1t3j      

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    -0.14       0.00     0.08
  2   0.0000     -0.85    -0.07       0.07     0.09
  3   0.0001     -1.79    -0.10      -0.00    -0.05
  4   0.0001     -2.95    -0.23       0.04    -0.07
  5   0.0002     -4.86    -0.02       0.32     0.06
  6   0.0002     -5.70     0.05       0.39     0.07
  7   0.0002     -6.51     0.15       0.37    -0.01
  8   0.0003     -7.67     0.07       0.42    -0.03
  9   0.0003     -8.69    -0.16       0.53     0.02
 10   0.0007    -19.46     0.10       1.36     0.11
 11   0.0007    -20.58    -0.14       1.32     0.01
 12   0.0008    -22.59     0.19       1.44    -0.03
 13   0.0008    -23.75    -0.15       1.49    -0.04
 14   0.0008    -24.32     0.17       1.68     0.09
 15   0.0028    -82.93     0.18       5.89    -0.19
 16   0.0029    -84.13    -0.14       6.03    -0.11
 17   0.0029    -84.84    -0.07       6.16    -0.03
 18   0.0029    -85.76    -0.06       6.42     0.17
 19   0.0029    -86.53     0.05       6.31    -0.00
 20   0.0030    -87.37    -0.01       6.38     0.02
 21   0.0030    -88.18     0.03       6.36    -0.06
 22   0.0030    -89.24    -0.19       6.56     0.09
 23   0.0031    -89.73     0.10       6.57     0.04
 24   0.0031    -90.67     0.02       6.49    -0.09
 25   0.0031    -91.52    -0.01       6.57    -0.08
 26   0.0031    -92.23     0.07       6.70     0.00
 27   0.0222   -652.29     0.33      48.34     0.03
 28   0.0223   -653.19 (   0.48)     48.17 (  -0.21)
 29   0.0252   -738.37     0.06      54.71     0.03
 30   0.0252   -739.37    -0.09      54.39    -0.35
 31   0.2111  -4244.15    -0.06     443.24    -0.03
 32   0.2138  -4252.38    -0.00     448.75     0.05
 33   0.2139  -4252.50     0.05     449.03     0.22
 34   2.0491   9732.99    -0.06    4502.09     0.03
 35   2.0491   9731.51    -0.08    4502.11    -0.03
 36   2.0492   9730.27     0.07    4502.35     0.11
 37   2.0492   9728.97     0.14    4502.34     0.02
 38   2.1200   7932.78    -0.05    4629.81     0.04
 39   2.1200   7932.32     0.26    4629.73    -0.10
 40   2.1202   7929.29    -0.08    4629.96    -0.05
 41   2.1202   7928.62    -0.19    4630.01    -0.04

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.

14FX61    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        42.772    42.805    42.743
ecceobj         0.141     0.145     0.137
incobj         21.586    21.585    21.587
qmin           35.950    35.878    36.053
qmax           50.328    50.480    50.195
amean          42.991    43.025    42.970
amin           42.631    42.680    42.609
amax           43.393    43.408    43.373
emean           0.145     0.148     0.142
emin            0.130     0.132     0.127
emax            0.161     0.164     0.158
imean          21.628    21.640    21.612
imin           21.092    21.076    21.083
imax           22.138    22.144    22.121
excite_mean     0.396     0.397     0.395
fracstop        1.000     1.000     1.000
cjmean          2.898     2.897     2.899

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       184.7     183.6     184.5
kozaiamp        180.0     179.9     179.9