Orbit Fit and Astrometric record for 469708

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: 469708    
# Created Sat Oct 21 01:36:50 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   86 observations of   86
# Arc:  14.14y
# First observation: 2001/05/24
#  Last observation: 2015/07/13
# Chi-squared of fit:    64.44 DOF:  166 RMS:  0.15
# Min/Max residuals:    -0.34    0.72
# Exact a, adot, b, bdot, g, gdot:
  1.639821E-05  3.297356E-02  6.288299E-06  1.088582E-02  3.099326E-02 -1.099463E-02
# Covariance matrix:
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
#      lat0       lon0       xBary       yBary       zBary        JD0
    2.210010 -148.982424   -0.537641    0.033270   -0.865040  2452053.510663
# Heliocentric elements and errors
Epoch:              2452054.5000  =  2001/05/25
Mean Anomaly:          314.70908 +/-     0.000
Argument of Peri:       86.31145 +/-     0.000
Long of Asc Node:      205.41328 +/-     0.000
Inclination:            18.28810 +/-     0.000
Eccentricity:         0.32191366 +/-    0.0000
Semi-Major Axis:     39.13984938 +/-    0.0000
Time of Perihelion: 2463306.6572 +/-       0.0
Perihelion:          26.54019708 +/-    0.0000
Aphelion:            51.73950168 +/-    0.0000
Period (y)              244.8708 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -28.09202597 +/-    0.0000
Ecliptic Y          -17.51579629 +/-    0.0000
Ecliptic Z            1.24440630 +/-    0.0000
Ecliptic XDOT         0.00235607 +/-    0.0000
Ecliptic YDOT        -0.00197479 +/-    0.0000
Ecliptic ZDOT         0.00092365 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   33.12891323 +/-    0.0000
Geocenter to KBO     32.26529536 +/-    0.0000
# Hcoef:  7.39

The following table shows the complete astrometric record for 469708. 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 (469708) followed by the observatory code and reference code for the source of the astrometry.

2001 05  24.00992  13 58 39.53   -09 45 19.4   22.4R 469708    807  Cr3923      
2001 05  24.11809  13 58 39.02   -09 45 16.3         469708    807  Cr3923      
2005 04  12.35559  14 36 22.30   -10 19 48.1   22.3R 469708    695  Cn3380      
2005 04  12.45248  14 36 21.76   -10 19 44.7         469708    695  Cn3380      
2005 04  13.47152  14 36 16.13   -10 19 07.5         469708    695  Cn3380      
2005 05  09.21074  14 33 46.78   -10 03 48.6   21.1R 469708    807  Cn5373      
2005 05  10.20779  14 33 40.98   -10 03 15.2         469708    807  Cn5373      
2005 05  11.04422  14 33 36.13   -10 02 47.5         469708    807  Cn5373      
2005 05  11.13343  14 33 35.62   -10 02 44.7         469708    807  Cn5373      
2005 06  02.32175  14 31 36.54   -09 51 51.0   21.2R 469708    568  Cn6545      
2005 06  02.35536  14 31 36.38   -09 51 50.1         469708    568  Cn6545      
2006 04  22.23797  14 44 25.86   -10 14 33.5   22.1R 469708    304  Cr0851      
2006 04  22.29288  14 44 25.53   -10 14 31.7         469708    304  Cr0851      
2006 04  26.23384  14 44 02.48   -10 12 09.6   21.1R 469708    807  Cr3594      
2006 04  26.31833  14 44 01.98   -10 12 06.6         469708    807  Cr3594      
2006 04  28.09587  14 43 51.49   -10 11 03.4         469708    807  Cr3594      
2006 05  02.28263  14 43 26.58   -10 08 35.1   22.8r 469708    695  Cr0851      
2006 05  02.32828  14 43 26.30   -10 08 33.6   22.5r 469708    695  Cr0851      
2006 06  21.03020  14 39 10.53   -09 46 24.2   22.5R 469708    304  Cr4851      
2006 06  21.12307  14 39 10.19   -09 46 22.8         469708    304  Cr4851      
2008 06  07.03549  14 58 25.47   -09 49 20.0         469708    807  Cz1384      
2008 06  07.20990  14 58 24.58   -09 49 16.3         469708    807  Cz1384      
2013 05  12.44181  15 50 20.376  -09 37 17.41  22.1w 469708    F51  C~1vVP      
2013 05  12.45506  15 50 20.292  -09 37 16.87  22.0w 469708    F51  C~1vVP      
2013 05  12.46830  15 50 20.199  -09 37 16.54  22.1w 469708    F51  C~1vVP      
2013 05  12.48153  15 50 20.118  -09 37 16.11  22.2w 469708    F51  C~1vVP      
2014 02  28.55450  16 05 00.706  -10 08 32.93  22.3w 469708    F51  C~1vVP      
2014 02  28.56644  16 05 00.744  -10 08 32.83  22.3w 469708    F51  C~1vVP      
2014 02  28.59030  16 05 00.750  -10 08 32.07  22.2w 469708    F51  C~1vVP      
2014 04  04.54535  16 04 09.304  -09 50 07.94  22.0w 469708    F51  C~1vVP      
2014 04  04.55731  16 04 09.270  -09 50 07.13  22.2w 469708    F51  C~1vVP      
2014 04  04.58120  16 04 09.185  -09 50 06.48  22.0w 469708    F51  C~1vVP      
2014 05  22.42197  15 59 45.224  -09 24 09.50  22.1w 469708    F51  C~1vVP      
2014 05  22.43543  15 59 45.131  -09 24 08.97  22.0w 469708    F51  C~1vVP      
2014 05  22.44885  15 59 45.027  -09 24 08.87  22.0w 469708    F51  C~1vVP      
2014 05  22.46228  15 59 44.944  -09 24 08.59  22.1w 469708    F51  C~1vVP      
2014 05  23.35910  15 59 39.116  -09 23 44.94  22.0w 469708    F51  C~1vVP      
2014 05  23.41054  15 59 38.775  -09 23 43.47  22.1w 469708    F51  C~1vVP      
2014 05  23.42345  15 59 38.687  -09 23 43.14  22.2w 469708    F51  C~1vVP      
2014 05  23.43629  15 59 38.604  -09 23 42.82  22.2w 469708    F51  C~1vVP      
2014 05  23.44915  15 59 38.507  -09 23 42.27  22.1w 469708    F51  C~1vVP      
2014 05  24.37436  15 59 32.501  -09 23 18.54  22.0w 469708    F51  C~1vVP      
2014 05  24.38699  15 59 32.412  -09 23 18.11  22.0w 469708    F51  C~1vVP      
2014 05  24.44104  15 59 32.055  -09 23 16.67  22.0w 469708    F51  C~1vVP      
2014 05  24.45367  15 59 31.968  -09 23 16.41  22.2w 469708    F51  C~1vVP      
2014 05  28.37733  15 59 06.445  -09 21 38.74  21.9w 469708    F51  C~1vVP      
2014 05  28.39005  15 59 06.366  -09 21 38.53  21.7w 469708    F51  C~1vVP      
2014 05  28.40275  15 59 06.275  -09 21 38.13  21.9w 469708    F51  C~1vVP      
2014 05  28.41545  15 59 06.206  -09 21 37.98  21.9w 469708    F51  C~1vVP      
2014 06  03.41839  15 58 27.577  -09 19 21.69  22.2w 469708    F51  C~1vVP      
2014 06  03.43110  15 58 27.493  -09 19 21.38  22.3w 469708    F51  C~1vVP      
2014 06  03.44380  15 58 27.414  -09 19 21.24  22.3w 469708    F51  C~1vVP      
2014 06  03.45646  15 58 27.318  -09 19 20.96  22.1w 469708    F51  C~1vVP      
2014 06  21.35326  15 56 40.264  -09 14 21.72  22.1w 469708    F51  C~1vVP      
2014 06  21.36588  15 56 40.198  -09 14 21.78  22.2w 469708    F51  C~1vVP      
2014 06  21.37852  15 56 40.124  -09 14 21.21  22.4w 469708    F51  C~1vVP      
2014 06  21.39114  15 56 40.056  -09 14 21.29  22.3w 469708    F51  C~1vVP      
2014 07  04.32677  15 55 35.619  -09 12 34.63  21.6i 469708    F51  C~1vVP      
2014 07  04.33973  15 55 35.565  -09 12 34.50  21.5i 469708    F51  C~1vVP      
2014 07  04.35265  15 55 35.502  -09 12 34.87  21.4i 469708    F51  C~1vVP      
2015 04  23.55068  16 13 21.149  -09 29 16.57  22.2w 469708    F51  C~1vVP      
2015 04  23.56342  16 13 21.087  -09 29 16.12  22.1w 469708    F51  C~1vVP      
2015 04  23.57611  16 13 21.022  -09 29 15.86  22.1w 469708    F51  C~1vVP      
2015 04  23.58879  16 13 20.957  -09 29 15.10  22.2w 469708    F51  C~1vVP      
2015 04  24.58342  16 13 15.696  -09 28 41.38  21.7w 469708    F51  C~1vVP      
2015 04  24.59643  16 13 15.630  -09 28 41.16  22.1w 469708    F51  C~1vVP      
2015 04  24.60952  16 13 15.577  -09 28 40.61  21.5w 469708    F51  C~1vVP      
2015 05  21.47859  16 10 32.122  -09 14 52.31  22.0w 469708    F51  C~1vVP      
2015 05  21.47932  16 10 32.111  -09 14 52.45  21.8w 469708    F51  C~1vVP      
2015 05  21.49103  16 10 32.028  -09 14 52.00  21.9w 469708    F51  C~1vVP      
2015 05  21.49169  16 10 32.016  -09 14 52.04  21.7w 469708    F51  C~1vVP      
2015 05  21.50336  16 10 31.948  -09 14 51.83  21.8w 469708    F51  C~1vVP      
2015 05  21.50403  16 10 31.934  -09 14 51.71  21.9w 469708    F51  C~1vVP      
2015 05  21.51574  16 10 31.861  -09 14 51.43  21.9w 469708    F51  C~1vVP      
2015 05  21.51641  16 10 31.859  -09 14 51.35  22.1w 469708    F51  C~1vVP      
2015 05  22.48015  16 10 25.539  -09 14 26.12  22.0w 469708    F51  C~1vVP      
2015 05  22.49273  16 10 25.459  -09 14 25.76  22.0w 469708    F51  C~1vVP      
2015 05  22.50531  16 10 25.368  -09 14 25.50  21.7w 469708    F51  C~1vVP      
2015 05  22.51787  16 10 25.295  -09 14 25.21  22.0w 469708    F51  C~1vVP      
2015 06  23.40363  16 07 04.963  -09 04 30.87  21.9w 469708    F51  C~1vVP      
2015 06  23.41552  16 07 04.907  -09 04 30.81  21.9w 469708    F51  C~1vVP      
2015 06  23.42742  16 07 04.835  -09 04 30.37  22.2w 469708    F51  C~1vVP      
2015 06  23.43937  16 07 04.771  -09 04 30.63  22.4w 469708    F51  C~1vVP      
2015 07  13.33960  16 05 29.724  -09 03 00.35  22.5w 469708    F51  C~1vVP      
2015 07  13.35182  16 05 29.670  -09 03 00.30  22.3w 469708    F51  C~1vVP      
2015 07  13.36404  16 05 29.631  -09 03 00.21  22.4w 469708    F51  C~1vVP      

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    -0.16       0.00    -0.05
  2   0.0003      0.00     0.08       0.00    -0.27
  3   3.8860      0.00    -0.00       0.00    -0.03
  4   3.8862      0.00     0.02       0.00    -0.15
  5   3.8890      0.00    -0.18       0.00    -0.03
  6   3.9595      0.00     0.01       0.00     0.16
  7   3.9622      0.00     0.04       0.00     0.04
  8   3.9645      0.00    -0.16       0.00    -0.18
  9   3.9647      0.00     0.06       0.00    -0.34
 10   4.0255      0.00     0.11       0.00    -0.20
 11   4.0256      0.00     0.18       0.00    -0.14
 12   4.9123      0.00    -0.16       0.00     0.06
 13   4.9125      0.00    -0.25       0.00    -0.13
 14   4.9233      0.00     0.04       0.00     0.13
 15   4.9235      0.00     0.14       0.00     0.09
 16   4.9284      0.00     0.14       0.00    -0.20
 17   4.9398      0.00     0.15       0.00     0.52
 18   4.9400      0.00     0.11       0.00     0.42
 19   5.0760      0.00     0.01       0.00     0.08
 20   5.0763      0.00    -0.04       0.00     0.07
 21   7.0391      0.00     0.53       0.00     0.20
 22   7.0396      0.00     0.72       0.00     0.08
 23  11.9683      0.00    -0.05       0.00    -0.12
 24  11.9684      0.00    -0.02       0.00     0.01
 25  11.9684      0.00    -0.12       0.00    -0.06
 26  11.9684      0.00    -0.05       0.00    -0.03
 27  12.7681      0.00    -0.31       0.00     0.06
 28  12.7681      0.00     0.12       0.00    -0.15
 29  12.7682      0.00    -0.07       0.00    -0.02
 30  12.8639      0.00    -0.07       0.00    -0.26
 31  12.8639      0.00     0.10       0.00     0.13
 32  12.8640      0.00     0.17       0.00    -0.05
 33  12.9950      0.00     0.25       0.00    -0.01
 34  12.9950      0.00     0.19       0.00     0.17
 35  12.9950      0.00    -0.03       0.00    -0.09
 36  12.9951      0.00     0.06       0.00    -0.17
 37  12.9975      0.00     0.13       0.00    -0.15
 38  12.9977      0.00     0.13       0.00    -0.02
 39  12.9977      0.00     0.10       0.00    -0.03
 40  12.9977      0.00     0.13       0.00    -0.04
 41  12.9978      0.00    -0.04       0.00     0.17
 42  13.0003      0.00     0.19       0.00    -0.11
 43  13.0003      0.00     0.11       0.00    -0.00
 44  13.0005      0.00     0.14       0.00     0.05
 45  13.0005      0.00     0.09       0.00    -0.02
 46  13.0113      0.00     0.02       0.00    -0.06
 47  13.0113      0.00     0.10       0.00    -0.15
 48  13.0113      0.00    -0.01       0.00    -0.06
 49  13.0114      0.00     0.22       0.00    -0.21
 50  13.0278      0.00     0.04       0.00    -0.07
 51  13.0278      0.00     0.02       0.00    -0.03
 52  13.0279      0.00     0.07       0.00    -0.16
 53  13.0279      0.00    -0.14       0.00    -0.15
 54  13.0769      0.00    -0.03       0.00    -0.01
 55  13.0770      0.00     0.04       0.00    -0.22
 56  13.0770      0.00    -0.01       0.00     0.20
 57  13.0770      0.00     0.03       0.00    -0.03
 58  13.1124      0.00    -0.01       0.00     0.12
 59  13.1125      0.00     0.07       0.00     0.20
 60  13.1125      0.00     0.00       0.00    -0.23
 61  13.9152      0.00     0.05       0.00     0.01
 62  13.9153      0.00     0.14       0.00     0.03
 63  13.9153      0.00     0.19       0.00    -0.15
 64  13.9153      0.00     0.23       0.00     0.18
 65  13.9181      0.00     0.13       0.00     0.01
 66  13.9181      0.00     0.20       0.00    -0.22
 67  13.9181      0.00     0.48       0.00    -0.12
 68  13.9917      0.00     0.23       0.00     0.14
 69  13.9917      0.00     0.14       0.00    -0.02
 70  13.9917      0.00     0.06       0.00     0.12
 71  13.9917      0.00    -0.05       0.00     0.06
 72  13.9918      0.00     0.10       0.00    -0.04
 73  13.9918      0.00    -0.04       0.00     0.06
 74  13.9918      0.00     0.03       0.00     0.03
 75  13.9918      0.00     0.07       0.00     0.09
 76  13.9944      0.00     0.02       0.00    -0.05
 77  13.9945      0.00     0.08       0.00    -0.02
 78  13.9945      0.00    -0.02       0.00    -0.09
 79  13.9945      0.00     0.14       0.00    -0.13
 80  14.0818      0.00    -0.08       0.00     0.11
 81  14.0819      0.00     0.10       0.00     0.04
 82  14.0819      0.00     0.04       0.00     0.36
 83  14.0819      0.00     0.10       0.00    -0.02
 84  14.1364      0.00     0.02       0.00    -0.18
 85  14.1365      0.00    -0.06       0.00    -0.12
 86  14.1365      0.00     0.08       0.00    -0.01

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.

469708    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.103    39.102    39.103
ecceobj         0.323     0.323     0.323
incobj         18.306    18.306    18.306
qmin           26.039    26.061    26.019
qmax           53.510    53.477    53.527
amean          39.454    39.454    39.454
amin           39.073    39.071    39.070
amax           39.951    39.940    39.955
emean           0.263     0.263     0.263
emin            0.156     0.156     0.155
emax            0.339     0.339     0.340
imean          21.303    21.298    21.305
imin           17.781    17.785    17.779
imax           24.615    24.614    24.616
excite_mean     0.452     0.452     0.452
fracstop        1.000     1.000     1.000
cjmean          2.817     2.817     2.817

libcent 0       180.2     180.2     180.5
libamp  0        55.7      56.4      56.0
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       100.0      99.6     100.3
kozaiamp        180.0     179.9     179.9