Orbit Fit and Astrometric record for 15FN345

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: 15FN345   
# Created Tue Dec 12 02:38:13 2017
# Orbit generated from Bernstein formalism
# Fitting   35 observations of   36
# Arc:   3.15y
# First observation: 2012/05/14
#  Last observation: 2015/07/09
Preliminary a, adot, b, bdot, g, gdot:
   0.000043   0.025720   0.000006   0.006678   0.026043   0.000000
# Chi-squared of fit:    16.23 DOF:   64 RMS:  0.12
# Min/Max residuals:    -0.29    0.31
# Exact a, adot, b, bdot, g, gdot:
  1.558094E-05  2.566446E-02  4.723817E-06  6.647466E-03  2.588614E-02 -1.972511E-03
# Covariance matrix:
  3.6291E-13 -2.9440E-13  1.3650E-14 -4.7080E-14 -1.6177E-13 -2.2383E-12
 -2.9440E-13  6.6996E-13 -4.6005E-14  1.5958E-13  5.3532E-13  7.6140E-12
  1.3650E-14 -4.6005E-14  3.1270E-13 -1.2352E-13 -4.6126E-14 -5.6697E-13
 -4.7080E-14  1.5958E-13 -1.2352E-13  8.7827E-14  1.4805E-13  1.9572E-12
 -1.6177E-13  5.3532E-13 -4.6126E-14  1.4805E-13  6.6901E-13  6.7014E-12
 -2.2383E-12  7.6140E-12 -5.6697E-13  1.9572E-12  6.7014E-12  9.3102E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   24.829612 -129.660567   -0.059818    0.424965   -0.918530  2456061.859046
# Heliocentric elements and errors
Epoch:              2456060.5000  =  2012/05/13
Mean Anomaly:          309.01422 +/-     0.082
Argument of Peri:      120.68071 +/-     0.116
Long of Asc Node:      172.60007 +/-     0.001
Inclination:            27.98128 +/-     0.000
Eccentricity:         0.09152680 +/-    0.0003
Semi-Major Axis:     41.72315045 +/-    0.0055
Time of Perihelion: 2470002.0369 +/-      22.1
Perihelion:          37.90436421 +/-    0.0152
Aphelion:            45.54193669 +/-    0.0155
Period (y)              269.5094 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -22.97322112 +/-    0.0007
Ecliptic Y          -27.80609465 +/-    0.0009
Ecliptic Z           16.22206343 +/-    0.0005
Ecliptic XDOT         0.00239385 +/-    0.0000
Ecliptic YDOT        -0.00135591 +/-    0.0000
Ecliptic ZDOT         0.00055058 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   39.54874373 +/-    0.0008
Geocenter to KBO     38.63071281 +/-    0.0012
# Hcoef:  6.07

The following table shows the complete astrometric record for 15FN345. 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 (15FN345) followed by the observatory code and reference code for the source of the astrometry.

2012 05  14.35828  15 37 27.818  +06 09 45.90  22.2w 15FN345   F51  C~1vYV      
2012 05  14.37087  15 37 27.750  +06 09 46.23  22.1w 15FN345   F51  C~1vYV      
2012 05  14.38348  15 37 27.697  +06 09 46.61  22.2w 15FN345   F51  C~1vYV      
2012 05  14.39616  15 37 27.633  +06 09 46.83  22.4w 15FN345   F51  C~1vYV      
2014 05  04.40539  15 50 33.316  +06 04 01.17  22.2w 15FN345   F51  C~1vYV      
2014 05  04.41738  15 50 33.259  +06 04 01.39  22.2w 15FN345   F51  C~1vYV      
2014 05  04.42939  15 50 33.217  +06 04 01.62  22.5w 15FN345   F51  C~1vYV      
2014 05  04.44144  15 50 33.143  +06 04 01.97  21.9w 15FN345   F51  C~1vYV      
2014 05  28.33397  15 48 36.198  +06 12 17.10  22.0w 15FN345   F51  C~1vYV      
2014 05  28.34619  15 48 36.141  +06 12 17.32  22.1w 15FN345   F51  C~1vYV      
2014 05  28.35835  15 48 36.085  +06 12 17.07  22.1w 15FN345   F51  C~1vYV      
2014 05  28.37050  15 48 36.027  +06 12 17.48  22.0w 15FN345   F51  C~1vYV      
2015 03  25.54762  15 59 07.824  +05 37 55.26  22.3w 15FN345   F51  C~1vYV      
2015 03  25.56002  15 59 07.794  +05 37 55.83  22.4w 15FN345   F51  C~1vYV      
2015 03  25.57242  15 59 07.761  +05 37 56.33  22.3w 15FN345   F51  C~1vYV      
2015 03  25.60424  15 59 07.706  +05 37 57.56  22.6w 15FN345   F51  C~1vYV      
2015 03  25.61577  15 59 07.674  +05 37 58.22  22.2w 15FN345   F51  C~1vYV      
2015 04  04.47397  15 58 42.338  +05 44 53.38  22.0w 15FN345   F51  C~1vYV      
2015 04  04.48594  15 58 42.267  +05 44 53.87  22.1w 15FN345   F51  C~1vYV      
2015 04  04.49795  15 58 42.263  +05 44 54.30  22.0w 15FN345   F51  C~1vYV      
2015 04  04.50997  15 58 42.202  +05 44 55.37  21.9w 15FN345   F51  C~1vYV      
2015 04  12.40814  15 58 16.362  +05 50 11.37  22.0w 15FN345   F51  C~1vYV      
2015 04  12.44619  15 58 16.221  +05 50 12.66  21.9w 15FN345   F51  C~1vYV      
2015 04  12.44750  15 58 16.220  +05 50 12.84  22.3w 15FN345   F51  C~1vYV      
2015 04  12.45835  15 58 16.163  +05 50 13.39  22.0w 15FN345   F51  C~1vYV      
2015 04  12.45968  15 58 16.156  +05 50 13.67  22.1w 15FN345   F51  C~1vYV      
2015 04  12.47056  15 58 16.129  +05 50 13.88  21.9w 15FN345   F51  C~1vYV      
2015 04  12.47189  15 58 16.114  +05 50 13.82  21.9w 15FN345   F51  C~1vYV      
2015 05  14.46795  15 55 55.970  +06 07 02.20  21.7w 15FN345   F51  C~1vYV      
2015 05  14.48105  15 55 55.903  +06 07 02.59  21.8w 15FN345   F51  C~1vYW      
2015 05  14.49446  15 55 55.833  +06 07 02.89  21.9w 15FN345   F51  C~1vYW      
2015 05  14.50768  15 55 55.767  +06 07 03.14  22.3w 15FN345   F51  C~1vYW      
2015 07  09.30523  15 51 50.016  +06 09 28.47  22.1w 15FN345   F51  C~1vYW      
2015 07  09.31782  15 51 49.975  +06 09 28.22  22.3w 15FN345   F51  C~1vYW      
2015 07  09.33043  15 51 49.949  +06 09 27.80  22.2w 15FN345   F51  C~1vYW      
2015 07  09.34299  15 51 49.904  +06 09 27.73  22.2w 15FN345   F51  C~1vYW      

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     0.02       0.00    -0.14
  2   0.0000     -1.06    -0.07       0.06    -0.10
  3   0.0001     -1.93     0.05       0.23     0.05
  4   0.0001     -2.90     0.05       0.19    -0.01
  5   1.9714  11419.18    -0.13    2695.98     0.22
  6   1.9714  11418.30    -0.09    2695.97     0.11
  7   1.9714  11417.63     0.17    2696.02     0.06
  8   1.9715  11416.47    -0.07    2696.07     0.01
  9   2.0369   9598.71    -0.12    2718.58     0.12
 10   2.0369   9597.83    -0.08    2718.58     0.20
 11   2.0370   9597.09     0.10    2718.12    -0.17
 12   2.0370   9596.14     0.07    2718.29     0.09
 13   2.8616  19283.45    -0.00    3210.17    -0.05
 14   2.8616  19282.87    -0.05    3210.60    -0.02
 15   2.8616  19282.25    -0.11    3210.95    -0.08
 16   2.8617  19281.13     0.16    3211.92    -0.14
 17   2.8618  19280.49     0.02    3212.44    -0.01
 18   2.8887  18802.04     0.31    3513.69     0.06
 19   2.8888  18800.88    -0.19    3513.88    -0.08
 20   2.8888  18800.70     0.31    3514.28    -0.01
 21   2.8888  18799.53 (  -0.20)   3515.08 (   0.45)
 22   2.9105  18340.45     0.06    3718.31     0.05
 23   2.9106  18338.06     0.07    3719.00    -0.15
 24   2.9106  18337.99     0.09    3719.17    -0.01
 25   2.9106  18337.02    -0.20    3719.47     0.04
 26   2.9106  18336.85    -0.29    3719.71     0.26
 27   2.9106  18336.40    -0.05    3719.81     0.10
 28   2.9106  18336.20    -0.17    3719.69    -0.05
 29   2.9982  16037.43     0.09    4139.90    -0.17
 30   2.9983  16036.36     0.04    4140.01    -0.09
 31   2.9983  16035.26     0.00    4140.02    -0.10
 32   2.9984  16034.24     0.02    4140.00    -0.15
 33   3.1511  12441.49    -0.09    3312.67     0.11
 34   3.1512  12440.97    -0.10    3312.26     0.07
 35   3.1512  12440.70     0.15    3311.76    -0.07
 36   3.1512  12440.07     0.03    3311.51     0.06

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.

15FN345    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        41.634    41.648    41.620
ecceobj         0.092     0.092     0.091
incobj         28.017    28.017    28.017
qmin           37.430    37.461    37.461
qmax           46.631    46.658    46.629
amean          41.921    41.934    41.904
amin           41.599    41.615    41.583
amax           42.260    42.283    42.263
emean           0.090     0.090     0.089
emin            0.076     0.076     0.075
emax            0.104     0.104     0.104
imean          27.561    27.566    27.555
imin           27.230    27.234    27.250
imax           27.907    27.921    27.906
excite_mean     0.471     0.471     0.471
fracstop        1.000     1.000     1.000
cjmean          2.802     2.802     2.803

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     179.3     179.3
kozaiamp        180.0     180.0     180.0