Orbit Fit and Astrometric record for 15KB174

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: 15KB174   
# Created Mon Apr 22 01:10:07 2019
# Orbit generated from Bernstein formalism
# Fitting   32 observations of   32
# Arc:   3.24y
# First observation: 2014/05/30
#  Last observation: 2017/08/26
Preliminary a, adot, b, bdot, g, gdot:
   0.000060   0.019294  -0.000002   0.000324   0.021701   0.000000
# Chi-squared of fit:    13.60 DOF:   58 RMS:  0.12
# Min/Max residuals:    -0.42    0.30
# Exact a, adot, b, bdot, g, gdot:
  1.385870E-05  1.948256E-02 -3.002126E-08  3.218120E-04  2.191697E-02 -2.011456E-04
# Covariance matrix:
  2.0742E-13 -2.2885E-13 -1.2162E-15 -2.8353E-16 -8.3732E-14 -2.7895E-12
 -2.2885E-13  4.3899E-13  2.6297E-15  3.2643E-17  1.6357E-13  6.8310E-12
 -1.2162E-15  2.6297E-15  1.4103E-13 -7.1969E-14  2.1386E-15  4.6791E-14
 -2.8353E-16  3.2643E-17 -7.1969E-14  5.4808E-14  1.9464E-15  6.4949E-16
 -8.3732E-14  1.6357E-13  2.1386E-15  1.9464E-15  1.9087E-13  2.9124E-12
 -2.7895E-12  6.8310E-12  4.6791E-14  6.4949E-16  2.9124E-12  1.2145E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
    6.037958 -125.587659   -0.252864    0.103428   -0.977319  2456807.894078
# Heliocentric elements and errors
Epoch:              2456800.5000  =  2014/05/23
Mean Anomaly:          182.21850 +/-     0.439
Argument of Peri:      259.39172 +/-     0.440
Long of Asc Node:      153.41673 +/-     0.007
Inclination:             5.97912 +/-     0.000
Eccentricity:         0.06853253 +/-    0.0001
Semi-Major Axis:     43.61726819 +/-    0.0027
Time of Perihelion: 2508760.6238 +/-     128.3
Perihelion:          40.62806655 +/-    0.0037
Aphelion:            46.60646983 +/-    0.0039
Period (y)              288.0686 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -26.77269540 +/-    0.0005
Ecliptic Y          -37.84394700 +/-    0.0007
Ecliptic Z            4.79941388 +/-    0.0001
Ecliptic XDOT         0.00199093 +/-    0.0000
Ecliptic YDOT        -0.00139620 +/-    0.0000
Ecliptic ZDOT         0.00003746 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   46.60446242 +/-    0.0007
Geocenter to KBO     45.62675330 +/-    0.0009
# Hcoef:  8.13

The following table shows the complete astrometric record for 15KB174. 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 (15KB174) followed by the observatory code and reference code for the source of the astrometry.

2014 05  30.39330  15 34 14.506  -13 00 48.63  24.9r 15KB174   568  C~2lVI      
2014 06  01.32025  15 34 06.356  -13 00 23.18  24.6r 15KB174   568  C~2lVI      
2014 06  01.36329  15 34 06.180  -13 00 22.40  24.6r 15KB174   568  C~2lVI      
2014 06  01.40622  15 34 05.983  -13 00 22.53  25.3r 15KB174   568  C~2lVI      
2014 06  22.36048  15 32 45.051  -12 56 43.07  23.8r 15KB174   568  C~2lVI      
2014 07  19.33364  15 31 34.715  -12 55 09.51  24.7r 15KB174   568  C~2lVI      
2015 02  23.63607  15 43 25.321  -13 38 36.13  24.8r 15KB174   568  C~2lVI      
2015 03  22.51769  15 43 00.027  -13 33 41.35  24.7r 15KB174   568  C~2lVI      
2015 04  12.51271  15 42 01.984  -13 28 17.86  25.3r 15KB174   568  C~2lVI      
2015 04  12.55363  15 42 01.854  -13 28 17.07  24.7r 15KB174   568  C~2lVI      
2015 05  24.39373  15 39 09.983  -13 16 57.34  24.8r 15KB174   568  C~2lVI      
2015 05  24.43983  15 39 09.789  -13 16 56.43  24.7r 15KB174   568  C~2lVI      
2015 05  24.48091  15 39 09.592  -13 16 55.86  24.8r 15KB174   568  C~2lVI      
2015 05  26.46900  15 39 00.937  -13 16 27.86  24.9r 15KB174   568  C~2lVI      
2015 06  18.36794  15 37 27.578  -13 12 03.13  24.3r 15KB174   568  C~2lVI      
2015 06  18.40888  15 37 27.436  -13 12 02.80  24.7r 15KB174   568  C~2lVI      
2015 06  21.38354  15 37 16.681  -13 11 37.71  24.7r 15KB174   568  C~2lVI      
2015 07  10.41926  15 36 19.239  -13 09 59.72  25.0r 15KB174   568  C~2lVI      
2015 07  18.34401  15 36 02.215  -13 09 52.03  24.4r 15KB174   568  C~2lVI      
2016 02  06.63721  15 47 31.630  -13 53 48.48  24.8w 15KB174   568  C~2lVI      
2016 02  12.62276  15 47 41.116  -13 53 30.54  24.9w 15KB174   568  C~2lVI      
2016 03  15.63618  15 47 38.002  -13 49 01.49  24.8w 15KB174   568  C~2lVI      
2016 04  08.60429  15 46 41.112  -13 43 18.26  25.4w 15KB174   568  C~2lVI      
2016 04  29.51356  15 45 23.892  -13 37 36.28  24.4w 15KB174   568  C~2lVI      
2016 05  04.48619  15 45 03.108  -13 36 15.23  24.6w 15KB174   568  C~2lVI      
2016 05  30.46201  15 43 09.911  -13 29 50.07  25.1w 15KB174   568  C~2lVI      
2016 07  04.29818  15 41 00.740  -13 24 45.54  25.1w 15KB174   568  C~2lVI      
2016 07  05.36646  15 40 57.716  -13 24 41.50  24.8w 15KB174   568  C~2lVI      
2017 03  30.57261  15 51 36.901  -13 59 28.25  25.1w 15KB174   568  C~2lVI      
2017 05  21.53337  15 48 20.472  -13 46 02.72  23.6w 15KB174   568  C~2lVI      
2017 08  19.27489  15 44 31.610  -13 41 15.35  25.0w 15KB174   568  C~2lVI      
2017 08  26.26334  15 44 37.861  -13 42 30.91  25.3w 15KB174   568  C~2lVI      

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     0.04       0.00     0.05
  2   0.0053   -121.75     0.02      -3.59     0.05
  3   0.0054   -124.43     0.08      -3.44     0.30
  4   0.0055   -127.20     0.06      -4.25    -0.42
  5   0.0629  -1328.41    -0.05     -73.10    -0.00
  6   0.1367  -2349.24    -0.04    -228.61     0.07
  7   0.7371   8351.27     0.17    -330.87    -0.15
  8   0.8107   7924.16    -0.07    -128.13     0.01
  9   0.8682   7024.80    -0.10      -7.49     0.00
 10   0.8683   7022.77     0.05      -7.16     0.15
 11   0.9829   4423.40     0.04      73.69    -0.08
 12   0.9830   4420.43     0.14      73.91     0.20
 13   0.9831   4417.50    -0.06      73.80     0.13
 14   0.9886   4288.04     0.02      71.60     0.01
 15   1.0513   2900.33    -0.21      10.35    -0.12
 16   1.0514   2898.23    -0.03      10.19    -0.11
 17   1.0595   2739.64    -0.08      -2.27     0.05
 18   1.1116   1901.08    -0.10    -104.29    -0.12
 19   1.1333   1657.60     0.06    -155.43     0.07
 20   1.6899  12062.27     0.01    -406.83    -0.04
 21   1.7063  12193.30     0.08    -358.28    -0.02
 22   1.7940  12088.37    -0.08    -105.82     0.17
 23   1.8596  11200.77    -0.31      42.47    -0.16
 24   1.9168  10024.02     0.10     121.31     0.11
 25   1.9304   9709.82     0.14     131.52    -0.03
 26   2.0016   8011.65    -0.05     130.21    -0.01
 27   2.0969   6105.49     0.10      -6.86    -0.08
 28   2.0999   6061.59     0.09     -13.12    -0.12
 29   2.8342  15635.16    -0.00      57.00     0.00
 30   2.9764  12653.30    -0.00     207.59     0.03
 31   3.2221   9330.10    -0.02    -265.52    -0.03
 32   3.2413   9436.22     0.05    -318.43     0.11

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.

15KB174    quality flag:2

Type:         7:4EEE    7:4EEE CLASSICAL

axisobj        43.392    43.400    43.384
ecceobj         0.074     0.074     0.074
incobj          5.986     5.986     5.986
qmin           39.478    39.397    39.810
qmax           48.216    48.351    47.971
amean          43.726    43.726    43.726
amin           43.362    43.374    43.346
amax           44.123    44.113    44.136
emean           0.076     0.072     0.073
emin            0.060     0.042     0.059
emax            0.094     0.096     0.088
imean           5.341     5.385     5.530
imin            4.258     4.569     4.723
imax            6.291     6.553     6.273
excite_mean     0.121     0.119     0.121
fracstop        1.000     1.000     1.000
cjmean          3.081     3.081     3.081

libcent 0       166.1     203.7    -180.0
libamp  0       130.3     139.2    -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       194.6     195.7     177.6
kozaiamp        179.9     180.0     179.9