Orbit Fit and Astrometric record for 13FB28

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: 13FB28    
# Created Mon Apr 22 01:09:24 2019
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting  102 observations of  102
# Arc:  17.08y
# First observation: 2001/02/20
#  Last observation: 2018/03/22
# Chi-squared of fit:   115.73 DOF:  198 RMS:  0.19
# Min/Max residuals:    -0.59    0.74
# Exact a, adot, b, bdot, g, gdot:
  1.540652E-05  2.248457E-02 -3.210297E-06 -5.971383E-03  2.367377E-02  7.163517E-04
# Covariance matrix:
  4.2373E-13 -6.2858E-14 -4.5174E-14  1.1861E-14 -2.9531E-14 -9.9019E-14
 -6.2858E-14  1.4097E-14  1.2810E-14 -3.4217E-15  1.5191E-14  2.8521E-14
 -4.5174E-14  1.2810E-14  2.6951E-13 -2.1902E-14  1.4594E-14  2.8755E-14
  1.1861E-14 -3.4217E-15 -2.1902E-14  2.3251E-15 -4.3088E-15 -7.6939E-15
 -2.9531E-14  1.5191E-14  1.4594E-14 -4.3088E-15  6.5252E-14  3.5608E-14
 -9.9019E-14  2.8521E-14  2.8755E-14 -7.6939E-15  3.5608E-14  6.4122E-14
#      lat0       lon0       xBary       yBary       zBary        JD0
   -4.976230  158.568754    0.112684   -0.085492   -0.980067  2451960.754315
# Heliocentric elements and errors
Epoch:              2451960.5000  =  2001/02/20
Mean Anomaly:           26.16175 +/-     0.014
Argument of Peri:      168.58896 +/-     0.017
Long of Asc Node:      320.70175 +/-     0.000
Inclination:            15.62730 +/-     0.000
Eccentricity:         0.06591542 +/-    0.0000
Semi-Major Axis:     45.89168956 +/-    0.0019
Time of Perihelion: 2443708.4139 +/-       4.6
Perihelion:          42.86671975 +/-    0.0021
Aphelion:            48.91665938 +/-    0.0023
Period (y)              310.8918 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -40.04255859 +/-    0.0004
Ecliptic Y           15.84482048 +/-    0.0002
Ecliptic Z           -3.66419761 +/-    0.0000
Ecliptic XDOT        -0.00097949 +/-    0.0000
Ecliptic YDOT        -0.00240897 +/-    0.0000
Ecliptic ZDOT        -0.00069498 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.21908639 +/-    0.0004
Geocenter to KBO     42.24084741 +/-    0.0005
# Hcoef:  6.01

The following table shows the complete astrometric record for 13FB28. 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 (13FB28) followed by the observatory code and reference code for the source of the astrometry.

2001 02  20.253572 10 33 19.20   +03 44 19.9   22.0V 13FB28    645  C~1q9f      
2001 02  20.254402 10 33 19.20   +03 44 19.9   21.9V 13FB28    645  C~1q9f      
2001 02  20.256889 10 33 19.19   +03 44 19.9   23.1V 13FB28    645  C~1q9f      
2007 04  20.233682 10 54 58.37   -00 38 13.1   22.2V 13FB28    645  C~2e9Z      
2007 04  20.234512 10 54 58.36   -00 38 12.9   22.1V 13FB28    645  C~2e9Z      
2007 04  20.236999 10 54 58.36   -00 38 12.8   23.1V 13FB28    645  C~2e9Z      
2011 03  15.41060  11 14 05.549  -04 02 03.44  22.0G 13FB28    F51  C~2rXx      
2011 03  30.36306  11 13 01.280  -03 55 26.65  22.3w 13FB28    F51  C~1vWx      
2011 03  30.37634  11 13 01.212  -03 55 26.42  22.2w 13FB28    F51  C~1vWx      
2011 03  30.39078  11 13 01.155  -03 55 25.90  22.2w 13FB28    F51  C~1vWx      
2011 03  30.40406  11 13 01.105  -03 55 25.67  22.2w 13FB28    F51  C~1vWx      
2011 12  06.62599  11 22 25.336  -04 55 41.23  22.3w 13FB28    F51  C~1vWx      
2011 12  06.63064  11 22 25.344  -04 55 41.57  22.3w 13FB28    F51  C~1vWx      
2011 12  06.63529  11 22 25.364  -04 55 41.76  22.5w 13FB28    F51  C~1vWx      
2011 12  06.63994  11 22 25.352  -04 55 42.03  22.4w 13FB28    F51  C~1vWx      
2012 01  05.66208  11 22 20.137  -05 03 08.10  22.2G 13FB28    F51  C~2rXx      
2012 03  02.46493  11 19 12.930  -04 53 51.81  22.1G 13FB28    F51  C~2rXx      
2013 03  06.41235  11 23 09.856  -05 39 06.99  22.3G 13FB28    F51  C~2rXx      
2013 03  06.42696  11 23 09.816  -05 39 06.71  22.4G 13FB28    F51  C~2rXx      
2013 03  06.44158  11 23 09.743  -05 39 06.27  22.8G 13FB28    F51  C~2rXx      
2013 03  06.45621  11 23 09.673  -05 39 05.91  22.4G 13FB28    F51  C~2rXx      
2013 03  17.11357  11 22 22.181  -05 34 40.65        13FB28    807  C~14Qh      
2013 03  17.11357  11 22 22.17   -05 34 41.5   22.3r 13FB28    W84  C~2J9e      
2013 03  17.17578  11 22 21.893  -05 34 39.27  21.8r 13FB28    807  C~14Qh      
2013 03  17.17579  11 22 21.89   -05 34 39.8         13FB28    W84  C~2J9e      
2013 03  17.23999  11 22 21.590  -05 34 37.54        13FB28    807  C~14Qh      
2013 03  17.23999  11 22 21.59   -05 34 38.2         13FB28    W84  C~2J9e      
2013 04  05.32917  11 21 00.921  -05 26 03.64  22.3w 13FB28    F51  C~1vWx      
2013 04  05.35790  11 21 00.787  -05 26 03.00  22.3w 13FB28    F51  C~1vWx      
2013 04  05.37231  11 21 00.724  -05 26 02.26  22.5w 13FB28    F51  C~1vWx      
2013 05  07.97363  11 19 20.845  -05 12 30.94        13FB28    807  C~14Qh      
2013 05  07.99424  11 19 20.798  -05 12 30.61        13FB28    807  C~14Qh      
2013 05  08.99453  11 19 18.833  -05 12 09.93  21.9r 13FB28    807  C~14Qh      
2013 05  09.03162  11 19 18.746  -05 12 09.01        13FB28    807  C~14Qh      
2014 02  20.52640  11 28 24.896  -06 30 29.48  22.3G 13FB28    F51  C~2rXx      
2014 02  21.52551  11 28 20.707  -06 30 11.50  22.0G 13FB28    F51  C~2rXx      
2014 02  28.45993  11 27 51.083  -06 27 54.89  22.2w 13FB28    F51  C~1vWx      
2014 02  28.47200  11 27 51.037  -06 27 54.72  22.2w 13FB28    F51  C~1vWx      
2014 02  28.48407  11 27 50.979  -06 27 54.47  22.4w 13FB28    F51  C~1vWx      
2014 02  28.49619  11 27 50.930  -06 27 54.15  22.2w 13FB28    F51  C~1vWx      
2014 03  24.41293  11 26 05.159  -06 18 09.20  22.6w 13FB28    F51  C~1vWx      
2014 03  24.42520  11 26 05.105  -06 18 08.60  22.5w 13FB28    F51  C~1vWx      
2014 03  24.43752  11 26 05.069  -06 18 08.19  22.7w 13FB28    F51  C~1vWx      
2014 04  28.30750  11 23 56.391  -06 02 34.81  22.0G 13FB28    F51  C~2rXx      
2014 04  28.31980  11 23 56.361  -06 02 34.35  22.2G 13FB28    F51  C~2rXx      
2014 04  28.33207  11 23 56.287  -06 02 34.03  22.1G 13FB28    F51  C~2rXx      
2014 04  28.34436  11 23 56.271  -06 02 33.92  22.3G 13FB28    F51  C~2rXx      
2014 04  30.99640  11 23 49.186  -06 01 29.49        13FB28    304  C~14Qh      
2014 05  01.98282  11 23 46.666  -06 01 06.12  21.9r 13FB28    304  C~14Qh      
2014 05  24.26280  11 23 08.553  -05 53 48.21  22.5w 13FB28    F51  C~1vWx      
2014 05  24.27607  11 23 08.544  -05 53 48.29  22.3w 13FB28    F51  C~1vWx      
2014 05  24.28934  11 23 08.538  -05 53 47.85  22.2w 13FB28    F51  C~1vWx      
2014 05  24.30263  11 23 08.511  -05 53 47.62  22.6w 13FB28    F51  C~1vWx      
2014 06  20.26792  11 23 16.134  -05 49 57.60  22.8G 13FB28    F51  C~2rXx      
2014 11  28.64615  11 34 33.305  -07 07 39.46  23.7G 13FB28    F51  C~2rXx      
2014 11  29.60632  11 34 35.274  -07 08 07.82  22.2G 13FB28    F51  C~2rXx      
2015 02  24.44462  11 32 23.676  -07 15 36.05  22.4w 13FB28    F51  C~1vWx      
2015 02  24.45887  11 32 23.603  -07 15 35.85  22.5w 13FB28    F51  C~1vWx      
2015 02  24.47314  11 32 23.544  -07 15 35.53  22.2w 13FB28    F51  C~1vWx      
2015 02  24.48744  11 32 23.488  -07 15 35.33  22.2w 13FB28    F51  C~1vWx      
2015 02  25.46530  11 32 19.336  -07 15 16.53  22.4w 13FB28    F51  C~1vWx      
2015 02  25.47925  11 32 19.291  -07 15 16.26  22.2w 13FB28    F51  C~1vWx      
2015 02  25.49320  11 32 19.221  -07 15 16.44  22.4w 13FB28    F51  C~1vWx      
2015 03  22.39727  11 30 29.452  -07 05 33.12  22.4w 13FB28    F51  C~1vWx      
2015 03  22.42499  11 30 29.329  -07 05 32.67  22.2w 13FB28    F51  C~1vWx      
2015 03  22.43881  11 30 29.283  -07 05 31.99  22.5w 13FB28    F51  C~1vWx      
2015 03  23.42607  11 30 24.961  -07 05 05.84  22.1G 13FB28    F51  C~2rXx      
2015 03  23.43999  11 30 24.888  -07 05 05.51  22.5G 13FB28    F51  C~2rXx      
2015 03  23.45386  11 30 24.816  -07 05 05.14  22.2G 13FB28    F51  C~2rXx      
2015 03  23.46769  11 30 24.777  -07 05 04.63  22.2G 13FB28    F51  C~2rXx      
2015 05  06.32508  11 27 48.977  -06 45 40.40  21.6G 13FB28    F51  C~2rXx      
2016 01  19.58678  11 38 38.963  -08 06 56.54  21.9G 13FB28    F51  C~2rXx      
2016 01  19.59811  11 38 38.932  -08 06 56.63  22.2G 13FB28    F51  C~2rXx      
2016 01  19.60947  11 38 38.907  -08 06 56.71  22.5G 13FB28    F51  C~2rXx      
2016 01  19.62082  11 38 38.886  -08 06 56.66  22.2G 13FB28    F51  C~2rXx      
2016 03  13.24393  11 35 21.73   -07 55 19.4   22.5R 13FB28    G37  C~1pQU      
2016 03  13.29283  11 35 21.52   -07 55 18.2         13FB28    G37  C~1pQU      
2016 04  02.32576  11 33 54.252  -07 46 26.62  22.4G 13FB28    F51  C~2rXx      
2016 04  02.33824  11 33 54.200  -07 46 26.45  22.7G 13FB28    F51  C~2rXx      
2016 04  02.35073  11 33 54.137  -07 46 25.91  22.2G 13FB28    F51  C~2rXx      
2016 04  02.36320  11 33 54.087  -07 46 25.67  22.8G 13FB28    F51  C~2rXx      
2017 01  30.57584  11 42 21.832  -08 52 02.30  22.7G 13FB28    F51  C~2rXx      
2017 02  17.52148  11 41 19.434  -08 49 09.75  21.8G 13FB28    F51  C~2rXx      
2017 02  17.53395  11 41 19.408  -08 49 09.33  23.0G 13FB28    F51  C~2rXx      
2017 02  17.54644  11 41 19.327  -08 49 09.29  23.0G 13FB28    F51  C~2rXx      
2017 02  17.55891  11 41 19.286  -08 49 08.93  22.5G 13FB28    F51  C~2rXx      
2017 03  19.32518  11 39 11.193  -08 38 50.52  22.0G 13FB28    F51  C~2rXx      
2017 03  19.33718  11 39 11.106  -08 38 50.02  22.0G 13FB28    F51  C~2rXx      
2017 03  19.34920  11 39 11.059  -08 38 49.85  21.8G 13FB28    F51  C~2rXx      
2017 03  19.36118  11 39 11.030  -08 38 49.64  21.8G 13FB28    F51  C~2rXx      
2017 03  21.40625  11 39 01.947  -08 37 56.29  23.0G 13FB28    F51  C~2rXx      
2017 03  21.41745  11 39 01.902  -08 37 56.03  22.8G 13FB28    F51  C~2rXx      
2017 03  21.42867  11 39 01.855  -08 37 55.54  22.5G 13FB28    F51  C~2rXx      
2017 03  31.37382  11 38 18.589  -08 33 26.73  22.4G 13FB28    F51  C~2rXx      
2017 03  31.38570  11 38 18.543  -08 33 26.43  22.2G 13FB28    F51  C~2rXx      
2017 03  31.39756  11 38 18.482  -08 33 26.19  21.9G 13FB28    F51  C~2rXx      
2017 11  20.61770  11 46 35.554  -09 16 31.05  22.7G 13FB28    F51  C~2rXx      
2017 12  31.59842  11 47 28.566  -09 34 18.03  22.2G 13FB28    F51  C~2rXx      
2017 12  31.61064  11 47 28.565  -09 34 18.18  22.9G 13FB28    F51  C~2rXx      
2017 12  31.62288  11 47 28.578  -09 34 18.20  22.9G 13FB28    F51  C~2rXx      
2018 01  10.62444  11 47 19.297  -09 36 19.54  21.9G 13FB28    F51  C~2rXx      
2018 03  22.41660  11 43 14.258  -09 23 19.65  22.6G 13FB28    F51  C~2rXx      

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    -0.13       0.00    -0.12
  2   0.0000      0.00    -0.08       0.00    -0.14
  3   0.0000      0.00    -0.05       0.00    -0.19
  4   6.1601      0.00    -0.00       0.00    -0.15
  5   6.1601      0.00    -0.12       0.00     0.03
  6   6.1601      0.00    -0.01       0.00     0.07
  7  10.0620      0.00    -0.15       0.00    -0.20
  8  10.1030      0.00     0.00       0.00     0.16
  9  10.1030      0.00    -0.18       0.00     0.03
 10  10.1030      0.00    -0.13       0.00     0.17
 11  10.1031      0.00    -0.05       0.00     0.04
 12  10.7909      0.00     0.02       0.00     0.20
 13  10.7909      0.00     0.07       0.00    -0.03
 14  10.7909      0.00     0.29       0.00    -0.11
 15  10.7909      0.00     0.04       0.00    -0.27
 16  10.8731      0.00    -0.51       0.00    -0.34
 17  11.0286      0.00     0.07       0.00    -0.05
 18  12.0388      0.00    -0.27       0.00    -0.04
 19  12.0388      0.00     0.12       0.00    -0.10
 20  12.0388      0.00     0.02       0.00     0.00
 21  12.0389      0.00    -0.03       0.00     0.02
 22  12.0681      0.00    -0.00       0.00    -0.11
 23  12.0681      0.00     0.16       0.00     0.74
 24  12.0682      0.00     0.04       0.00     0.51
 25  12.0682      0.00    -0.00       0.00    -0.02
 26  12.0684      0.00    -0.16       0.00    -0.09
 27  12.0684      0.00    -0.16       0.00     0.57
 28  12.1207      0.00     0.42       0.00     0.13
 29  12.1208      0.00     0.14       0.00    -0.02
 30  12.1208      0.00     0.06       0.00     0.33
 31  12.2100      0.00     0.39       0.00     0.26
 32  12.2101      0.00     0.33       0.00     0.17
 33  12.2128      0.00     0.40       0.00     0.26
 34  12.2129      0.00     0.21       0.00     0.42
 35  13.0001      0.00     0.33       0.00    -0.19
 36  13.0028      0.00    -0.09       0.00    -0.22
 37  13.0218      0.00     0.02       0.00     0.02
 38  13.0218      0.00     0.13       0.00    -0.06
 39  13.0218      0.00     0.06       0.00    -0.07
 40  13.0219      0.00     0.13       0.00    -0.00
 41  13.0874      0.00    -0.03       0.00    -0.23
 42  13.0874      0.00    -0.03       0.00     0.04
 43  13.0874      0.00     0.25       0.00     0.12
 44  13.1829      0.00    -0.09       0.00    -0.22
 45  13.1829      0.00    -0.01       0.00    -0.06
 46  13.1830      0.00    -0.59       0.00    -0.04
 47  13.1830      0.00    -0.30       0.00    -0.23
 48  13.1903      0.00     0.34       0.00     0.03
 49  13.1930      0.00     0.52       0.00     0.08
 50  13.2540      0.00     0.02       0.00     0.18
 51  13.2540      0.00     0.07       0.00    -0.11
 52  13.2540      0.00     0.16       0.00     0.13
 53  13.2541      0.00    -0.07       0.00     0.16
 54  13.3279      0.00    -0.25       0.00    -0.12
 55  13.7697      0.00     0.04       0.00    -0.03
 56  13.7724      0.00    -0.09       0.00    -0.02
 57  14.0101      0.00     0.17       0.00     0.05
 58  14.0101      0.00    -0.00       0.00    -0.01
 59  14.0102      0.00     0.04       0.00     0.04
 60  14.0102      0.00     0.12       0.00    -0.03
 61  14.0129      0.00    -0.01       0.00     0.16
 62  14.0129      0.00     0.22       0.00     0.17
 63  14.0130      0.00     0.08       0.00    -0.28
 64  14.0812      0.00    -0.24       0.00     0.07
 65  14.0812      0.00    -0.22       0.00    -0.21
 66  14.0813      0.00     0.01       0.00     0.10
 67  14.0840      0.00     0.12       0.00    -0.06
 68  14.0840      0.00    -0.04       0.00    -0.10
 69  14.0841      0.00    -0.19       0.00    -0.10
 70  14.0841      0.00     0.15       0.00     0.04
 71  14.2042      0.00    -0.21       0.00    -0.14
 72  14.9112      0.00    -0.05       0.00    -0.00
 73  14.9113      0.00    -0.12       0.00    -0.07
 74  14.9113      0.00    -0.11       0.00    -0.14
 75  14.9113      0.00    -0.03       0.00    -0.07
 76  15.0582      0.00     0.00       0.00     0.20
 77  15.0583      0.00     0.17       0.00     0.20
 78  15.1131      0.00     0.08       0.00     0.10
 79  15.1132      0.00     0.09       0.00    -0.08
 80  15.1132      0.00    -0.06       0.00     0.12
 81  15.1132      0.00    -0.02       0.00     0.01
 82  15.9434      0.00    -0.01       0.00     0.01
 83  15.9925      0.00    -0.09       0.00    -0.28
 84  15.9926      0.00     0.27       0.00    -0.04
 85  15.9926      0.00    -0.20       0.00    -0.18
 86  15.9926      0.00    -0.07       0.00    -0.00
 87  16.0741      0.00    -0.02       0.00    -0.16
 88  16.0742      0.00    -0.52       0.00     0.03
 89  16.0742      0.00    -0.41       0.00    -0.10
 90  16.0742      0.00    -0.03       0.00    -0.20
 91  16.0798      0.00    -0.14       0.00     0.08
 92  16.0798      0.00    -0.06       0.00     0.05
 93  16.0799      0.00    -0.01       0.00     0.25
 94  16.1071      0.00    -0.05       0.00     0.01
 95  16.1071      0.00     0.03       0.00    -0.02
 96  16.1072      0.00    -0.12       0.00    -0.11
 97  16.7484      0.00    -0.08       0.00    -0.06
 98  16.8606      0.00    -0.13       0.00     0.06
 99  16.8607      0.00    -0.04       0.00     0.10
100  16.8607      0.00     0.26       0.00     0.26
101  16.8881      0.00    -0.10       0.00    -0.28
102  17.0819      0.00    -0.09       0.00    -0.58

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.

13FB28    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        45.711    45.711    45.711
ecceobj         0.062     0.062     0.062
incobj         15.657    15.657    15.657
qmin           42.203    42.208    42.202
qmax           49.754    49.781    49.743
amean          45.894    45.894    45.894
amin           45.535    45.535    45.536
amax           46.281    46.277    46.282
emean           0.065     0.065     0.065
emin            0.055     0.055     0.055
emax            0.076     0.076     0.076
imean          16.895    16.895    16.895
imin           16.578    16.578    16.579
imax           17.150    17.149    17.152
excite_mean     0.298     0.298     0.298
fracstop        1.000     1.000     1.000
cjmean          3.013     3.013     3.013

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       188.3     188.3     188.2
kozaiamp        180.0     180.0     180.0