Orbit Fit and Astrometric record for 14FY71

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: 14FY71    
# Created Fri Oct 20 01:38:24 2017
# Orbit generated from Bernstein formalism
# Fitting   48 observations of   50
# Arc:   2.01y
# First observation: 2014/03/28
#  Last observation: 2016/03/31
Preliminary a, adot, b, bdot, g, gdot:
  -0.000145   0.027628   0.000003   0.005713   0.026279   0.000000
# Chi-squared of fit:    88.64 DOF:   90 RMS:  0.24
# Min/Max residuals:    -1.13    0.57
# Exact a, adot, b, bdot, g, gdot:
  1.525257E-05  2.780811E-02  2.489757E-06  5.773433E-03  2.680463E-02  4.887145E-03
# Covariance matrix:
  8.1117E-14 -1.7910E-13  1.6315E-15 -2.7863E-14  3.0907E-14 -2.4324E-12
 -1.7910E-13  1.2201E-12 -2.4170E-14  2.4032E-13 -1.1729E-14  2.0838E-11
  1.6315E-15 -2.4170E-14  5.9185E-14 -4.1786E-14 -6.9318E-15 -4.5540E-13
 -2.7863E-14  2.4032E-13 -4.1786E-14  9.8367E-14  5.2297E-15  4.3022E-12
  3.0907E-14 -1.1729E-14 -6.9318E-15  5.2297E-15  1.6141E-13  3.6330E-13
 -2.4324E-12  2.0838E-11 -4.5540E-13  4.3022E-12  3.6330E-13  3.7271E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
  -14.941608 -168.735937    0.070002   -0.256262   -0.960798  2456744.576378
# Heliocentric elements and errors
Epoch:              2456740.5000  =  2014/03/24
Mean Anomaly:           44.30106 +/-     0.032
Argument of Peri:      243.39966 +/-     0.069
Long of Asc Node:      241.77583 +/-     0.001
Inclination:            18.56970 +/-     0.000
Eccentricity:         0.20956872 +/-    0.0007
Semi-Major Axis:     43.64119307 +/-    0.0172
Time of Perihelion: 2443781.9919 +/-       5.1
Perihelion:          34.49536428 +/-    0.0339
Aphelion:            52.78702186 +/-    0.0374
Period (y)              288.3056 +/-      0.17
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -36.34157440 +/-    0.0005
Ecliptic Y           -7.16493142 +/-    0.0001
Ecliptic Z           -9.61896218 +/-    0.0001
Ecliptic XDOT        -0.00007290 +/-    0.0000
Ecliptic YDOT        -0.00291274 +/-    0.0000
Ecliptic ZDOT         0.00044119 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   38.26971003 +/-    0.0005
Geocenter to KBO     37.30698290 +/-    0.0006
# Hcoef:  5.49

The following table shows the complete astrometric record for 14FY71. 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 (14FY71) followed by the observatory code and reference code for the source of the astrometry.

2014 03  28.07560  12 17 02.533  -18 09 26.90  21.0r 14FY71    807  C~1Rev      
2014 03  28.07561  12 17 02.50   -18 09 27.0         14FY71    W84  C~2J9u      
2014 03  28.14295  12 17 02.202  -18 09 24.72        14FY71    807  C~1Rev      
2014 03  28.14296  12 17 02.15   -18 09 24.8   21.4V 14FY71    W84  C~2J9u      
2014 03  28.21005  12 17 01.860  -18 09 22.72        14FY71    807  C~1Rev      
2014 03  28.21006  12 17 01.81   -18 09 22.6         14FY71    W84  C~2J9u      
2014 04  09.40156  12 16 01.380  -18 02 04.43  20.5i 14FY71    F51  C~1vXK      
2014 04  09.40222  12 16 01.373  -18 02 04.24  20.5i 14FY71    F51  C~1vXK      
2014 04  09.41280  12 16 01.331  -18 02 03.98  20.5i 14FY71    F51  C~1vXK      
2014 04  09.41346  12 16 01.317  -18 02 03.85  20.6i 14FY71    F51  C~1vXK      
2014 04  09.42403  12 16 01.271  -18 02 03.53  20.5i 14FY71    F51  C~1vXK      
2014 04  09.42469  12 16 01.265  -18 02 03.43  20.7i 14FY71    F51  C~1vXK      
2014 04  09.43527  12 16 01.211  -18 02 03.01  20.6i 14FY71    F51  C~1vXK      
2014 04  09.43593  12 16 01.204  -18 02 02.91  20.6i 14FY71    F51  C~1vXK      
2014 05  02.26982  12 14 21.714  -17 46 47.55        14FY71    304  C~1Rev      
2014 05  02.28468  12 14 21.667  -17 46 46.86  20.9r 14FY71    304  C~1Rev      
2014 05  05.30838  12 14 10.706  -17 44 44.12  20.9r 14FY71    F51  C~1vXK      
2014 05  05.31924  12 14 10.659  -17 44 43.65  20.9r 14FY71    F51  C~1vXK      
2014 05  05.32995  12 14 10.605  -17 44 43.10  21.1r 14FY71    F51  C~1vXK      
2014 05  05.34085  12 14 10.588  -17 44 42.60  21.1r 14FY71    F51  C~1vXK      
2014 05  19.27776  12 13 28.625  -17 35 28.77  21.1w 14FY71    F51  C~1vXK      
2014 05  19.28900  12 13 28.598  -17 35 28.25  21.2w 14FY71    F51  C~1vXK      
2014 05  19.30023  12 13 28.554  -17 35 27.89  21.4w 14FY71    F51  C~1vXK      
2014 05  19.31145  12 13 28.543  -17 35 27.49  21.2w 14FY71    F51  C~1vXK      
2015 01  26.55369  12 27 41.558  -18 43 44.49  21.2w 14FY71    F51  C~1vXK      
2015 01  26.56585  12 27 41.534  -18 43 44.74  21.2w 14FY71    F51  C~1vXK      
2015 01  26.57800  12 27 41.508  -18 43 44.81  21.3w 14FY71    F51  C~1vXK      
2015 01  26.59018  12 27 41.490  -18 43 44.83  21.2w 14FY71    F51  C~1vXK      
2015 01  28.56421  12 27 37.723  -18 44 00.73  21.3w 14FY71    F51  C~1vXK      
2015 01  28.57609  12 27 37.697  -18 44 00.82  21.1w 14FY71    F51  C~1vXK      
2015 01  28.58798  12 27 37.669  -18 44 00.89  21.2w 14FY71    F51  C~1vXK      
2015 01  28.59987  12 27 37.644  -18 44 00.97  21.2w 14FY71    F51  C~1vXK      
2015 03  21.31274  12 24 18.320  -18 33 41.76        14FY71    304  C~1Rev      
2015 03  21.35732  12 24 18.004  -18 33 40.18        14FY71    304  C~1Rev      
2015 04  17.99393  12 22 02.334  -18 17 31.96        14FY71    304  C~1Rev      
2015 04  18.99489  12 21 57.766  -18 16 52.49        14FY71    304  C~1Rev      
2016 03  13.25449  12 31 32.30   -18 56 24.6   21.0R 14FY71    G37  C~1pQd      
2016 03  13.30440  12 31 32.04   -18 56 23.2         14FY71    G37  C~1pQd      
2016 03  28.37979  12 30 17.56   -18 49 16.2   22.2V 14FY71    W84  C~1qn2      
2016 03  28.38673  12 30 17.55   -18 49 16.1         14FY71    W84  C~1qn2      
2016 03  28.39367  12 30 17.54   -18 49 16.1         14FY71    W84  C~1qn2      
2016 03  29.31176  12 30 12.92   -18 48 46.4         14FY71    W84  C~1qn2      
2016 03  29.31870  12 30 12.93   -18 48 46.3         14FY71    W84  C~1qn2      
2016 03  29.32564  12 30 12.93   -18 48 46.1         14FY71    W84  C~1qn2      
2016 03  30.36498  12 30 07.61   -18 48 11.3         14FY71    W84  C~1qn2      
2016 03  30.37192  12 30 07.61   -18 48 11.4         14FY71    W84  C~1qn2      
2016 03  30.37886  12 30 07.61   -18 48 11.3         14FY71    W84  C~1qn2      
2016 03  31.35901  12 30 02.65   -18 47 39.1         14FY71    W84  C~1qn2      
2016 03  31.36595  12 30 02.65   -18 47 39.1         14FY71    W84  C~1qn2      
2016 03  31.37289  12 30 02.64   -18 47 39.0         14FY71    W84  C~1qn2      

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     0.24       0.00     0.19
  2   0.0000     -0.39    -0.15      -0.28    -0.10
  3   0.0002     -5.20     0.44       0.05     0.21
  4   0.0002     -5.84    -0.20      -0.33    -0.17
  5   0.0004    -10.46     0.57      -0.13    -0.01
  6   0.0004    -11.16    -0.13      -0.31    -0.19
  7   0.0337   -976.75     0.02      44.81    -0.16
  8   0.0337   -976.92    -0.10      44.94    -0.03
  9   0.0338   -977.57     0.09      44.93    -0.11
 10   0.0338   -977.81    -0.09      44.97    -0.07
 11   0.0338   -978.53     0.02      44.99    -0.11
 12   0.0338   -978.65    -0.04      45.04    -0.06
 13   0.0338   -979.53    -0.07      45.11    -0.06
 14   0.0338   -979.66    -0.15      45.16    -0.01
 15   0.0964  -2651.09    -0.52     292.64     0.14
 16   0.0964  -2651.98    -0.43     292.99     0.26
 17   0.1047  -2845.36     0.15     339.91    -0.02
 18   0.1047  -2846.17     0.04     340.06    -0.04
 19   0.1047  -2847.10    -0.20     340.24    -0.03
 20   0.1048  -2847.52     0.07     340.60     0.16
 21   0.1429  -3623.09     0.18     596.07    -0.06
 22   0.1430  -3623.66     0.17     596.38     0.03
 23   0.1430  -3624.38    -0.00     596.44    -0.12
 24   0.1430  -3624.69     0.24     596.74    -0.04
 25   0.8336   9155.55    -0.02    1791.39     0.16
 26   0.8336   9155.34     0.03    1791.03     0.03
 27   0.8337   9155.03    -0.02    1790.82     0.05
 28   0.8337   9154.80     0.01    1790.70     0.16
 29   0.8391   9111.91     0.07    1754.80     0.14
 30   0.8392   9111.61     0.05    1754.58     0.13
 31   0.8392   9111.27     0.01    1754.35     0.13
 32   0.8392   9110.98     0.00    1754.14     0.14
 33   0.9808   6262.33     0.16    1189.81    -0.05
 34   0.9809   6257.58    -1.13    1189.45    -0.33
 35   1.0566   4099.01     0.20    1297.62    -0.01
 36   1.0593   4023.51     0.37    1307.41     0.12
 37   1.9608  12474.95     0.18    2387.44    -0.14
 38   1.9609  12471.00    -0.13    2387.28    -0.05
 39   2.0022  11327.27    -0.59    2364.13    -0.03
 40   2.0022  11327.10    -0.21    2364.17    -0.00
 41   2.0022  11326.97     0.21    2364.11    -0.07
 42   2.0048  11254.76    -0.08    2365.56    -0.12
 43   2.0048  11254.85     0.57    2365.71     0.02
 44   2.0048  11254.77 (   1.04)   2365.89 (   0.19)
 45   2.0076  11171.38    -0.65    2368.10     0.30
 46   2.0077  11171.42    -0.06    2368.00     0.19
 47   2.0077  11171.38     0.45    2368.10     0.26
 48   2.0104  11093.73    -0.06    2369.92    -0.30
 49   2.0104  11093.73     0.49    2369.92    -0.32
 50   2.0104  11093.56 (   0.87)   2369.95 (  -0.30)

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.

14FY71    quality flag:2

Type:       SCATEXTD  SCATNEAR  SCATEXTD

axisobj        43.312    43.365    43.261
ecceobj         0.205     0.207     0.203
incobj         18.571    18.570    18.571
qmin           33.600    33.637    33.674
qmax           53.850    54.239    53.704
amean          43.536    43.714    43.488
amin           43.139    43.212    43.091
amax           43.990    44.307    43.953
emean           0.203     0.204     0.202
emin            0.181     0.178     0.182
emax            0.226     0.229     0.224
imean          20.150    20.248    20.150
imin           19.293    19.366    19.307
imax           21.052    21.062    20.961
excite_mean     0.400     0.402     0.400
fracstop        1.000     1.000     1.000
cjmean          2.901     2.901     2.901

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       180.1     183.3     179.3
kozaiamp        180.0     180.0     179.9