Orbit Fit and Astrometric record for 14FT71

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: 14FT71    
# Created Mon Dec 18 02:38:00 2017
# Orbit generated from Bernstein formalism
# Fitting   33 observations of   33
# Arc:   4.08y
# First observation: 2011/03/25
#  Last observation: 2015/04/21
Preliminary a, adot, b, bdot, g, gdot:
  -0.000080   0.016341   0.000027  -0.007715   0.021012   0.000000
# Chi-squared of fit:    35.99 DOF:   60 RMS:  0.18
# Min/Max residuals:    -0.74    0.39
# Exact a, adot, b, bdot, g, gdot:
  1.258651E-05  1.628158E-02 -5.605149E-06 -7.679938E-03  2.115013E-02 -1.622025E-03
# Covariance matrix:
  2.7906E-13 -2.0042E-13 -3.0377E-14  6.4816E-14 -1.4331E-13 -2.0147E-12
 -2.0042E-13  5.1122E-13  1.1061E-13 -2.3778E-13  6.9250E-13  7.3174E-12
 -3.0377E-14  1.1061E-13  2.5562E-13 -1.2047E-13  1.5716E-13  1.6603E-12
  6.4816E-14 -2.3778E-13 -1.2047E-13  1.3975E-13 -3.3979E-13 -3.5691E-12
 -1.4331E-13  6.9250E-13  1.5716E-13 -3.3979E-13  1.1712E-12  1.0377E-11
 -2.0147E-12  7.3174E-12  1.6603E-12 -3.5691E-12  1.0377E-11  1.0984E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
  -12.533787 -169.190368    0.115834   -0.215848   -0.970794  2455645.860086
# Heliocentric elements and errors
Epoch:              2455640.5000  =  2011/03/20
Mean Anomaly:          225.17608 +/-     0.191
Argument of Peri:      352.19215 +/-     0.179
Long of Asc Node:      346.47611 +/-     0.001
Inclination:            27.97086 +/-     0.000
Eccentricity:         0.14548037 +/-    0.0003
Semi-Major Axis:     43.40134858 +/-    0.0081
Time of Perihelion: 2494753.1924 +/-      54.2
Perihelion:          37.08730441 +/-    0.0134
Aphelion:            49.71539275 +/-    0.0148
Period (y)              285.9322 +/-      0.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -46.32961007 +/-    0.0023
Ecliptic Y           -8.72957848 +/-    0.0004
Ecliptic Z          -10.26095467 +/-    0.0005
Ecliptic XDOT         0.00080696 +/-    0.0000
Ecliptic YDOT        -0.00198533 +/-    0.0000
Ecliptic ZDOT        -0.00092487 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   48.24858029 +/-    0.0022
Geocenter to KBO     47.28103938 +/-    0.0024
# Hcoef:  4.83

The following table shows the complete astrometric record for 14FT71. 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 (14FT71) followed by the observatory code and reference code for the source of the astrometry.

2011 03  25.35932  12 19 28.082  -15 46 45.23  21.6r 14FT71    F51  C~1vXJ      
2011 03  25.36996  12 19 28.043  -15 46 45.15  21.6r 14FT71    F51  C~1vXJ      
2011 03  25.38259  12 19 27.973  -15 46 44.65  21.4i 14FT71    F51  C~1vXJ      
2011 03  25.39423  12 19 27.921  -15 46 44.56  21.5i 14FT71    F51  C~1vXJ      
2012 04  13.35509  12 20 52.146  -16 25 57.27  21.2w 14FT71    F51  C~1vXJ      
2012 04  13.36830  12 20 52.100  -16 25 57.04  21.5w 14FT71    F51  C~1vXJ      
2012 04  13.38154  12 20 52.033  -16 25 56.57  21.3w 14FT71    F51  C~1vXJ      
2012 04  13.39479  12 20 51.984  -16 25 56.26  21.1w 14FT71    F51  C~1vXJ      
2014 03  24.22090  12 28 04.184  -18 07 30.53        14FT71    807  C~1Reu      
2014 03  24.29053  12 28 03.886  -18 07 28.90  21.3r 14FT71    807  C~1Reu      
2014 03  24.34893  12 28 03.626  -18 07 27.80        14FT71    807  C~1Reu      
2014 05  02.26787  12 25 22.919  -17 51 41.17        14FT71    304  C~1Reu      
2014 05  02.28246  12 25 22.872  -17 51 40.63  21.4r 14FT71    304  C~1Reu      
2014 05  07.30275  12 25 05.911  -17 49 26.71  21.6r 14FT71    F51  C~1vXJ      
2014 05  07.31358  12 25 05.880  -17 49 26.52  21.6r 14FT71    F51  C~1vXJ      
2014 05  07.32429  12 25 05.840  -17 49 26.21  21.6r 14FT71    F51  C~1vXJ      
2014 05  19.28107  12 24 30.970  -17 44 14.84  21.7w 14FT71    F51  C~1vXJ      
2014 05  19.29230  12 24 30.940  -17 44 14.57  21.6w 14FT71    F51  C~1vXJ      
2014 05  19.30353  12 24 30.924  -17 44 14.02  21.5w 14FT71    F51  C~1vXJ      
2014 05  19.31476  12 24 30.879  -17 44 13.93  21.9w 14FT71    F51  C~1vXJ      
2014 05  23.00931  12 24 21.906  -17 42 42.03        14FT71    304  C~1Reu      
2015 01  26.55699  12 34 12.453  -18 58 09.67  21.5w 14FT71    F51  C~1vXJ      
2015 01  26.56915  12 34 12.415  -18 58 09.70  21.6w 14FT71    F51  C~1vXJ      
2015 01  26.58130  12 34 12.393  -18 58 09.96  21.7w 14FT71    F51  C~1vXJ      
2015 01  26.59348  12 34 12.400  -18 58 09.99  21.8w 14FT71    F51  C~1vXJ      
2015 03  21.30479  12 31 13.624  -18 55 21.23        14FT71    304  C~1Reu      
2015 03  21.34846  12 31 13.429  -18 55 20.25        14FT71    304  C~1Reu      
2015 04  17.97858  12 29 13.41   -18 45 05.6         14FT71    W84  C~1Tk6      
2015 04  17.99883  12 29 13.322  -18 45 05.18        14FT71    304  C~1Reu      
2015 04  18.99973  12 29 09.186  -18 44 39.44        14FT71    304  C~1Reu      
2015 04  19.97881  12 29 05.19   -18 44 13.6   21.8V 14FT71    W84  C~1Tk6      
2015 04  20.97812  12 29 01.14   -18 43 47.4         14FT71    W84  C~1Tk6      
2015 04  21.97845  12 28 57.11   -18 43 21.1         14FT71    W84  C~1Tk6      

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    -0.09       0.00    -0.03
  2   0.0000     -0.55     0.07      -0.16    -0.11
  3   0.0001     -1.67    -0.22      -0.11     0.03
  4   0.0001     -2.40    -0.17      -0.33    -0.12
  5   1.0541   2060.80     0.13   -1659.40     0.09
  6   1.0541   2060.10     0.29   -1659.45     0.05
  7   1.0541   2059.03     0.08   -1659.41     0.10
  8   1.0542   2058.26     0.18   -1659.42     0.12
  9   2.9976  10180.41     0.00   -4770.54    -0.35
 10   2.9978  10175.85     0.04   -4770.73    -0.02
 11   2.9979  10172.00     0.04   -4771.18    -0.06
 12   3.1045   7686.60    -0.74   -4812.98    -0.24
 13   3.1045   7685.76    -0.73   -4812.76    -0.08
 14   3.1183   7409.80     0.14   -4786.54     0.03
 15   3.1183   7409.32     0.25   -4786.55    -0.03
 16   3.1183   7408.67     0.18   -4786.49    -0.03
 17   3.1511   6826.77     0.09   -4699.93     0.09
 18   3.1511   6826.27     0.09   -4699.85     0.07
 19   3.1511   6825.84     0.16   -4699.44     0.39
 20   3.1511   6825.21     0.04   -4699.61     0.13
 21   3.1613   6670.72    -0.01   -4666.62     0.13
 22   3.8417  16217.32     0.12   -5518.90    -0.13
 23   3.8418  16216.84    -0.14   -5519.13    -0.10
 24   3.8418  16216.65    -0.11   -5519.49    -0.20
 25   3.8418  16216.75     0.22   -5519.48     0.07
 26   3.9889  13802.72     0.03   -6354.14    -0.15
 27   3.9890  13799.78    -0.08   -6354.32     0.03
 28   4.0647  11983.63     0.04   -6457.71     0.14
 29   4.0647  11982.31     0.04   -6457.81     0.04
 30   4.0675  11917.93    -0.03   -6457.28    -0.21
 31   4.0701  11855.34    -0.04   -6455.87     0.12
 32   4.0729  11791.89     0.05   -6454.44     0.16
 33   4.0756  11728.68     0.05   -6452.81     0.09

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.

14FT71    quality flag:2

Type:       SCATNEAR  SCATNEAR  SCATEXTD

axisobj        43.349    43.372    43.326
ecceobj         0.146     0.147     0.146
incobj         27.981    27.980    27.981
qmin           35.196    35.520    35.604
qmax           52.717    52.343    51.863
amean          43.723    43.724    43.606
amin           43.260    43.286    43.243
amax           44.227    44.207    44.017
emean           0.161     0.157     0.157
emin            0.129     0.133     0.135
emax            0.193     0.185     0.180
imean          28.348    28.462    28.432
imin           27.684    28.027    27.959
imax           28.919    28.918    28.909
excite_mean     0.502     0.502     0.501
fracstop        1.000     1.000     1.000
cjmean          2.781     2.780     2.780

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       168.9     177.6     177.1
kozaiamp        179.9     180.0     179.9