Orbit Fit and Astrometric record for 13FH28

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: 13FH28    
# Created Thu Oct 18 01:09:19 2018
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   79 observations of   79
# Arc:  16.10y
# First observation: 2001/02/20
#  Last observation: 2017/03/29
# Chi-squared of fit:   452.62 DOF:  152 RMS:  0.42
# Min/Max residuals:    -1.39    1.31
# Exact a, adot, b, bdot, g, gdot:
  1.508450E-05  2.161336E-02 -3.040196E-06 -4.846438E-03  2.352336E-02 -3.100410E-03
# Covariance matrix:
  4.7564E-13 -6.7409E-14 -3.2218E-14  9.5998E-15 -3.2585E-14 -1.0017E-13
 -6.7409E-14  1.5782E-14  1.0350E-14 -3.1357E-15  1.9292E-14  3.2685E-14
 -3.2218E-14  1.0350E-14  3.4202E-13 -2.7130E-14  1.3463E-14  2.4413E-14
  9.5998E-15 -3.1357E-15 -2.7130E-14  2.6433E-15 -4.5005E-15 -7.4025E-15
 -3.2585E-14  1.9292E-14  1.3463E-14 -4.5005E-15  9.7247E-14  4.6640E-14
 -1.0017E-13  3.2685E-14  2.4413E-14 -7.4025E-15  4.6640E-14  7.7155E-14
#      lat0       lon0       xBary       yBary       zBary        JD0
   -3.473886  157.756792    0.098739   -0.059858   -0.983466  2451960.753891
# Heliocentric elements and errors
Epoch:              2451960.5000  =  2001/02/20
Mean Anomaly:          275.82178 +/-     0.022
Argument of Peri:      295.17152 +/-     0.015
Long of Asc Node:      322.80619 +/-     0.000
Inclination:            13.06566 +/-     0.000
Eccentricity:         0.13797328 +/-    0.0000
Semi-Major Axis:     43.27615261 +/-    0.0021
Time of Perihelion: 2476275.1839 +/-       8.5
Perihelion:          37.30519992 +/-    0.0019
Aphelion:            49.24710531 +/-    0.0025
Period (y)              284.6959 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -40.14579939 +/-    0.0005
Ecliptic Y           16.53134102 +/-    0.0002
Ecliptic Z           -2.57600864 +/-    0.0000
Ecliptic XDOT        -0.00059552 +/-    0.0000
Ecliptic YDOT        -0.00247435 +/-    0.0000
Ecliptic ZDOT        -0.00054098 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.49268793 +/-    0.0005
Geocenter to KBO     42.51104940 +/-    0.0006
# Hcoef:  6.24

The following table shows the complete astrometric record for 13FH28. 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 (13FH28) followed by the observatory code and reference code for the source of the astrometry.

2001 02  20.253148 10 32 32.10   +05 26 03.4         13FH28    645  C~1q9f      
2001 02  20.253981 10 32 32.10   +05 26 03.4         13FH28    645  C~1q9f      
2001 02  20.256470 10 32 32.09   +05 26 03.4         13FH28    645  C~1q9f      
2011 03  30.36371  11 12 55.245  -01 44 44.45  22.7G 13FH28    F51  C~2kOt      
2011 03  30.37699  11 12 55.195  -01 44 44.04  22.5G 13FH28    F51  C~2kOt      
2011 03  30.39144  11 12 55.118  -01 44 43.80  22.3G 13FH28    F51  C~2kOt      
2011 03  30.40471  11 12 55.065  -01 44 43.31  22.4G 13FH28    F51  C~2kOt      
2011 06  30.27239  11 11 07.696  -01 25 33.14  23.2G 13FH28    F51  C~2kOt      
2011 12  06.64192  11 22 42.455  -02 48 55.96  22.7G 13FH28    F51  C~2kOt      
2012 02  28.48690  11 19 38.801  -02 44 17.25  22.3G 13FH28    F51  C~2kOt      
2012 03  02.50017  11 19 25.090  -02 43 04.52  21.9G 13FH28    F51  C~2kOt      
2012 03  20.36152  11 18 03.147  -02 35 14.98  22.8G 13FH28    F51  C~2kOt      
2012 03  20.39078  11 18 03.009  -02 35 14.07  22.2G 13FH28    F51  C~2kOt      
2012 03  20.40540  11 18 02.949  -02 35 13.88  22.3G 13FH28    F51  C~2kOt      
2012 11  25.61177  11 26 47.504  -03 29 57.89  23.0G 13FH28    F51  C~2kOt      
2013 02  03.58747  11 25 48.689  -03 38 21.44  22.5G 13FH28    F51  C~2kOt      
2013 02  05.57605  11 25 41.457  -03 37 54.25  22.5G 13FH28    F51  C~2kOt      
2013 03  06.41300  11 23 38.494  -03 28 07.02  22.4G 13FH28    F51  C~2kOt      
2013 03  06.44224  11 23 38.367  -03 28 06.42  22.3G 13FH28    F51  C~2kOt      
2013 03  06.45687  11 23 38.302  -03 28 05.89  22.5G 13FH28    F51  C~2kOt      
2013 03  17.11892  11 22 49.094  -03 23 23.94  22.2r 13FH28    807  C~1Iuo      
2013 03  17.11892  11 22 49.06   -03 23 24.7   22.4r 13FH28    W84  C~2J9e      
2013 03  17.18090  11 22 48.821  -03 23 22.56        13FH28    807  C~1Iuo      
2013 03  17.18090  11 22 48.78   -03 23 23.0         13FH28    W84  C~2J9e      
2013 03  17.24550  11 22 48.511  -03 23 20.56        13FH28    807  C~1Iuo      
2013 03  17.24551  11 22 48.48   -03 23 21.2         13FH28    W84  C~2J9e      
2013 04  05.32850  11 21 24.854  -03 14 31.63  22.2G 13FH28    F51  C~2kOt      
2013 04  05.37166  11 21 24.658  -03 14 30.69  22.2G 13FH28    F51  C~2kOt      
2013 05  07.97598  11 19 41.171  -03 01 17.32  22.4r 13FH28    807  C~1Iuo      
2013 05  07.99657  11 19 41.113  -03 01 16.82        13FH28    807  C~1Iuo      
2013 05  08.99976  11 19 39.083  -03 00 57.82        13FH28    807  C~1Iuo      
2014 03  02.10588  11 28 32.20   -04 16 46.7   21.3g 13FH28    W84  C~2TH2      
2014 03  02.19826  11 28 31.78   -04 16 44.3   21.4g 13FH28    W84  C~2TH2      
2014 03  02.28869  11 28 31.38   -04 16 41.9   22.5g 13FH28    W84  C~2TH2      
2014 03  02.38460  11 28 30.90   -04 16 40.1   20.0g 13FH28    W84  C~2TH2      
2014 03  03.09565  11 28 27.70   -04 16 23.1   21.2g 13FH28    W84  C~2TH2      
2014 03  03.18750  11 28 27.28   -04 16 20.7   23.0g 13FH28    W84  C~2TH2      
2014 03  03.28772  11 28 26.80   -04 16 18.3   21.3g 13FH28    W84  C~2TH2      
2014 03  03.39109  11 28 26.33   -04 16 15.9   21.1g 13FH28    W84  C~2TH2      
2014 03  04.09687  11 28 23.11   -04 15 58.9   23.2g 13FH28    W84  C~2TH2      
2014 03  04.19051  11 28 22.69   -04 15 56.2   21.9g 13FH28    W84  C~2TH2      
2014 03  04.28102  11 28 22.27   -04 15 54.3   22.7g 13FH28    W84  C~2TH2      
2014 03  04.38505  11 28 21.77   -04 15 51.7   21.9g 13FH28    W84  C~2TH2      
2014 03  05.09456  11 28 18.56   -04 15 34.2   21.7g 13FH28    W84  C~2TH2      
2014 03  05.20449  11 28 18.03   -04 15 31.5   21.7g 13FH28    W84  C~2TH2      
2014 03  05.29775  11 28 17.61   -04 15 29.4   22.4g 13FH28    W84  C~2TH2      
2014 03  24.40128  11 26 49.682  -04 07 01.34  22.3G 13FH28    F51  C~2kOt      
2014 03  24.42586  11 26 49.558  -04 07 00.63  22.2G 13FH28    F51  C~2kOt      
2014 03  24.43818  11 26 49.502  -04 07 00.23  22.7G 13FH28    F51  C~2kOt      
2014 04  30.99871  11 24 28.127  -03 50 17.65  22.2r 13FH28    304  C~1Iuo      
2014 05  01.98785  11 24 25.470  -03 49 55.21        13FH28    304  C~1Iuo      
2014 05  24.30197  11 23 45.782  -03 43 09.95  22.5G 13FH28    F51  C~2kOt      
2014 06  24.27860  11 24 00.459  -03 40 33.76  22.9G 13FH28    F51  C~2kOt      
2014 11  28.64416  11 35 45.185  -05 01 53.55  22.3G 13FH28    F51  C~2kOt      
2015 01  23.50815  11 35 30.616  -05 13 16.74  22.4G 13FH28    F51  C~2kOt      
2015 02  25.50776  11 33 29.348  -05 05 40.31  22.3G 13FH28    F51  C~2kOt      
2015 03  16.18589  11 32 03.74   -04 58 02.6   21.8R 13FH28    G37  C~1N7m      
2015 03  16.25390  11 32 03.49   -04 57 59.3         13FH28    G37  C~1N7m      
2015 05  06.35144  11 28 47.324  -04 35 09.52  22.5G 13FH28    F51  C~2kOt      
2016 01  18.53705  11 40 19.151  -06 00 14.75  22.7G 13FH28    F51  C~2kOt      
2016 01  18.54907  11 40 19.115  -06 00 14.94  22.5G 13FH28    F51  C~2kOt      
2016 01  19.58742  11 40 16.815  -06 00 13.82  22.2G 13FH28    F51  C~2kOt      
2016 02  10.48285  11 39 10.022  -05 57 24.37  22.6G 13FH28    F51  C~2kOt      
2016 02  10.49393  11 39 09.971  -05 57 24.26  22.7G 13FH28    F51  C~2kOt      
2016 02  10.50502  11 39 09.947  -05 57 24.04  22.7G 13FH28    F51  C~2kOt      
2016 02  10.51610  11 39 09.906  -05 57 24.06  22.8G 13FH28    F51  C~2kOt      
2016 04  02.32036  11 35 20.476  -05 36 59.35  22.3G 13FH28    F51  C~2kOt      
2016 04  02.33286  11 35 20.408  -05 36 58.90  22.5G 13FH28    F51  C~2kOt      
2016 04  02.34534  11 35 20.357  -05 36 58.57  22.0G 13FH28    F51  C~2kOt      
2016 04  02.35781  11 35 20.293  -05 36 58.10  22.3G 13FH28    F51  C~2kOt      
2017 01  26.56750  11 44 36.013  -06 46 46.96  22.6G 13FH28    F51  C~2kOt      
2017 01  26.57951  11 44 35.990  -06 46 46.83  22.4G 13FH28    F51  C~2kOt      
2017 02  03.59907  11 44 11.506  -06 45 48.56  22.8G 13FH28    F51  C~2kOt      
2017 02  22.45570  11 42 58.995  -06 41 10.67  22.4G 13FH28    F51  C~2kOt      
2017 02  25.51823  11 42 45.698  -06 40 09.24  22.3G 13FH28    F51  C~2kOt      
2017 03  19.34004  11 41 05.438  -06 31 14.99  22.6G 13FH28    F51  C~2kOt      
2017 03  19.35201  11 41 05.382  -06 31 14.49  22.3G 13FH28    F51  C~2kOt      
2017 03  19.36398  11 41 05.317  -06 31 14.33  22.7G 13FH28    F51  C~2kOt      
2017 03  29.35913  11 40 19.269  -06 26 32.46  22.6G 13FH28    F51  C~2kOt      

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    -0.07       0.00    -0.02
  2   0.0000      0.00    -0.01       0.00    -0.04
  3   0.0000      0.00     0.01       0.00    -0.09
  4  10.1030      0.00    -0.08       0.00    -0.29
  5  10.1030      0.00     0.03       0.00    -0.24
  6  10.1030      0.00    -0.19       0.00    -0.39
  7  10.1031      0.00    -0.13       0.00    -0.27
  8  10.3546      0.00    -0.49       0.00    -0.46
  9  10.7909      0.00     0.05       0.00    -0.44
 10  11.0205      0.00    -0.02       0.00    -0.31
 11  11.0287      0.00     0.22       0.00    -0.32
 12  11.0776      0.00     0.11       0.00    -0.52
 13  11.0777      0.00     0.06       0.00    -0.41
 14  11.0778      0.00     0.17       0.00    -0.62
 15  11.7628      0.00    -0.27       0.00    -0.38
 16  11.9544      0.00    -0.15       0.00    -0.26
 17  11.9598      0.00    -0.08       0.00    -0.34
 18  12.0388      0.00    -0.06       0.00    -0.34
 19  12.0388      0.00     0.09       0.00    -0.48
 20  12.0389      0.00     0.14       0.00    -0.32
 21  12.0681      0.00    -0.17       0.00    -0.40
 22  12.0681      0.00     0.34       0.00     0.36
 23  12.0682      0.00    -0.03       0.00    -0.39
 24  12.0682      0.00     0.58       0.00     0.05
 25  12.0684      0.00     0.45       0.00     0.29
 26  12.0684      0.00    -0.01       0.00    -0.35
 27  12.1207      0.00    -0.18       0.00    -0.22
 28  12.1208      0.00    -0.42       0.00    -0.47
 29  12.2101      0.00     0.28       0.00    -0.05
 30  12.2101      0.00     0.08       0.00     0.05
 31  12.2129      0.00     0.29       0.00    -0.19
 32  13.0263      0.00     0.09       0.00     0.85
 33  13.0265      0.00     0.19       0.00     1.06
 34  13.0268      0.00     0.47       0.00     1.31
 35  13.0271      0.00    -0.10       0.00     0.82
 36  13.0290      0.00     0.24       0.00     0.82
 37  13.0293      0.00     0.32       0.00     1.01
 38  13.0295      0.00     0.10       0.00     1.00
 39  13.0298      0.00     0.23       0.00     0.90
 40  13.0317      0.00     0.06       0.00     0.81
 41  13.0320      0.00     0.29       0.00     1.24
 42  13.0322      0.00     0.32       0.00     0.93
 43  13.0325      0.00     0.06       0.00     0.99
 44  13.0345      0.00     0.45       0.00     1.10
 45  13.0348      0.00     0.19       0.00     1.10
 46  13.0350      0.00     0.42       0.00     0.90
 47  13.0873      0.00     0.19       0.00    -0.23
 48  13.0874      0.00     0.02       0.00    -0.21
 49  13.0874      0.00     0.03       0.00    -0.15
 50  13.1903      0.00     0.65       0.00     0.11
 51  13.1930      0.00     0.44       0.00     0.08
 52  13.2541      0.00    -0.46       0.00    -0.17
 53  13.3389      0.00    -0.45       0.00    -0.15
 54  13.7697      0.00     0.09       0.00    -0.50
 55  13.9227      0.00     0.17       0.00    -0.46
 56  14.0130      0.00     0.01       0.00    -0.15
 57  14.0642      0.00    -1.06       0.00    -1.39
 58  14.0643      0.00    -0.01       0.00     0.08
 59  14.2042      0.00    -0.47       0.00    -0.37
 60  14.9084      0.00     0.29       0.00    -0.20
 61  14.9084      0.00     0.15       0.00    -0.39
 62  14.9113      0.00     0.22       0.00    -0.17
 63  14.9712      0.00    -0.03       0.00    -0.13
 64  14.9712      0.00    -0.16       0.00    -0.17
 65  14.9713      0.00     0.12       0.00    -0.11
 66  14.9713      0.00     0.14       0.00    -0.28
 67  15.1131      0.00    -0.00       0.00    -0.32
 68  15.1132      0.00    -0.19       0.00    -0.23
 69  15.1132      0.00    -0.13       0.00    -0.25
 70  15.1132      0.00    -0.26       0.00    -0.14
 71  15.9324      0.00     0.00       0.00    -0.29
 72  15.9324      0.00     0.17       0.00    -0.21
 73  15.9544      0.00     0.01       0.00    -0.40
 74  16.0060      0.00    -0.01       0.00    -0.14
 75  16.0144      0.00    -0.06       0.00    -0.14
 76  16.0742      0.00    -0.03       0.00    -0.26
 77  16.0742      0.00    -0.02       0.00    -0.09
 78  16.0742      0.00    -0.14       0.00    -0.26
 79  16.1016      0.00    -0.29       0.00    -0.27

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.

13FH28    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        43.125    43.125    43.126
ecceobj         0.139     0.139     0.139
incobj         13.092    13.092    13.092
qmin           36.578    36.597    36.629
qmax           50.369    50.353    50.328
amean          43.336    43.324    43.341
amin           42.972    42.955    42.991
amax           43.758    43.728    43.742
emean           0.136     0.136     0.136
emin            0.122     0.121     0.121
emax            0.153     0.153     0.152
imean          14.384    14.379    14.396
imin           13.599    13.580    13.605
imax           15.043    15.024    15.033
excite_mean     0.284     0.283     0.283
fracstop        1.000     1.000     1.000
cjmean          2.996     2.996     2.996

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       179.3     179.6     180.9
kozaiamp        179.9     180.0     180.0