Orbit Fit and Astrometric record for 469361

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: 469361    
# Created Tue Dec 12 02:36:52 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   53 observations of   53
# Arc:  15.28y
# First observation: 2000/02/12
#  Last observation: 2015/05/24
# Chi-squared of fit:   125.06 DOF:  100 RMS:  0.27
# Min/Max residuals:    -0.74    0.82
# Exact a, adot, b, bdot, g, gdot:
  1.563835E-05  2.628561E-02  5.955920E-06  8.093878E-03  2.616941E-02  2.379256E-03
# 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
   -1.623257 -176.057534    0.644022   -0.021558   -0.752643  2451586.934013
# Heliocentric elements and errors
Epoch:              2451586.5000  =  2000/02/12
Mean Anomaly:           33.59456 +/-     0.000
Argument of Peri:      312.51376 +/-     0.000
Long of Asc Node:      188.14724 +/-     0.000
Inclination:            17.18330 +/-     0.000
Eccentricity:         0.11804777 +/-    0.0000
Semi-Major Axis:     42.97555126 +/-    0.0000
Time of Perihelion: 2441983.7167 +/-       0.0
Perihelion:          37.90238334 +/-    0.0000
Aphelion:            48.04871918 +/-    0.0000
Period (y)              281.7347 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -38.89534011 +/-    0.0000
Ecliptic Y           -2.03300724 +/-    0.0000
Ecliptic Z           -1.08220740 +/-    0.0000
Ecliptic XDOT        -0.00008882 +/-    0.0000
Ecliptic YDOT        -0.00275517 +/-    0.0000
Ecliptic ZDOT         0.00083950 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   38.96342117 +/-    0.0000
Geocenter to KBO     38.21252359 +/-    0.0000
# Hcoef:  6.42

The following table shows the complete astrometric record for 469361. 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 (469361) followed by the observatory code and reference code for the source of the astrometry.

2000 02  12.43327  12 11 53.47   -03 03 24.9   22.4V 469361    645  cv2247      
2000 03  03.43432  12 10 35.46   -02 53 48.8   22.4V 469361    645  cv2247      
2001 03  26.21736  12 15 09.42   -02 51 16.5   23.2R 469361    695  Cd1744      
2001 03  26.32316  12 15 08.92   -02 51 12.6         469361    695  Cd1744      
2001 04  26.43053  12 12 53.10   -02 33 41.3   21.9R 469361    568  Cd0950      
2001 04  26.45793  12 12 52.99   -02 33 40.4         469361    568  Cd0950      
2001 04  27.46330  12 12 49.23   -02 33 10.0         469361    568  Cd0950      
2001 05  21.99887  12 11 37.81   -02 22 53.5   22.1R 469361    807  Cd1744      
2001 05  22.10805  12 11 37.58   -02 22 51.4         469361    807  Cd1744      
2001 06  08.97515  12 11 15.63   -02 18 32.7   22.4R 469361    304  Cd1744      
2001 06  09.02543  12 11 15.60   -02 18 32.3         469361    304  Cd1744      
2002 02  04.61646  12 24 42.94   -03 26 24.5   21.4R 469361    568  Cf2335      
2002 02  05.57583  12 24 40.48   -03 26 04.8         469361    568  Cf2335      
2002 02  06.59194  12 24 37.76   -03 25 43.4         469361    568  Cf2335      
2003 03  06.40921  12 29 13.57   -03 23 10.3   21.2R 469361    662  Ch5853      
2003 03  06.47894  12 29 13.28   -03 23 08.5         469361    662  Ch5853      
2004 03  30.28790  12 33 36.29   -03 19 11.1   22.1V 469361    291  Ck2976      
2004 03  30.31119  12 33 36.18   -03 19 10.1   22.0V 469361    291  Ck2976      
2008 04  04.45032  12 57 55.55   -03 54 23.3   23.1R 469361    250  S~06AP      
2008 04  04.45657  12 57 55.52   -03 54 23.1         469361    250  S~06AP      
2008 04  04.46282  12 57 55.49   -03 54 22.9         469361    250  S~06AP      
2008 04  04.46907  12 57 55.46   -03 54 22.7         469361    250  S~06AP      
2008 05  01.19151  12 55 56.21   -03 40 09.4   22.7R 469361    688  Cy8909      
2008 05  01.25390  12 55 55.91   -03 40 07.4         469361    688  Cy8909      
2012 04  13.41595  13 21 27.209  -04 23 50.57  22.2g 469361    F51  C~1vV5      
2012 04  13.42734  13 21 27.148  -04 23 50.39  21.9r 469361    F51  C~1vV5      
2012 04  13.43934  13 21 27.105  -04 23 49.96  22.2r 469361    F51  C~1vV5      
2013 04  10.41573  13 27 41.458  -04 33 39.68  22.1w 469361    F51  C~1vV5      
2013 04  10.42936  13 27 41.393  -04 33 39.20  22.2w 469361    F51  C~1vV5      
2013 04  10.44305  13 27 41.319  -04 33 38.75  22.3w 469361    F51  C~1vV5      
2013 04  10.45676  13 27 41.258  -04 33 38.24  22.4w 469361    F51  C~1vV5      
2014 02  28.50390  13 36 22.620  -05 02 46.63  22.9w 469361    F51  C~1vV5      
2014 02  28.51513  13 36 22.594  -05 02 46.08  22.6w 469361    F51  C~1vV5      
2014 02  28.52636  13 36 22.555  -05 02 45.74  22.5w 469361    F51  C~1vV5      
2014 02  28.53763  13 36 22.517  -05 02 45.44  22.6w 469361    F51  C~1vV5      
2014 05  18.28572  13 30 55.069  -04 23 50.35  22.5w 469361    F51  C~1vV5      
2014 05  18.29698  13 30 55.019  -04 23 50.04  22.5w 469361    F51  C~1vV5      
2014 05  18.30823  13 30 54.980  -04 23 49.95  22.5w 469361    F51  C~1vV5      
2014 05  18.31948  13 30 54.934  -04 23 49.80  22.6w 469361    F51  C~1vV5      
2014 06  29.27227  13 29 18.412  -04 15 31.93  22.6w 469361    F51  C~1vV5      
2014 06  29.29447  13 29 18.394  -04 15 31.92  22.4w 469361    F51  C~1vV5      
2014 06  29.30555  13 29 18.390  -04 15 31.86  22.2w 469361    F51  C~1vV5      
2015 01  25.59499  13 43 00.890  -05 21 15.11  22.6w 469361    F51  C~1vV5      
2015 01  25.60669  13 43 00.903  -05 21 15.04  22.6w 469361    F51  C~1vV5      
2015 01  25.61819  13 43 00.907  -05 21 14.89  22.4w 469361    F51  C~1vV5      
2015 01  25.62971  13 43 00.912  -05 21 14.64  22.5w 469361    F51  C~1vV5      
2015 03  21.47809  13 41 04.926  -05 00 07.05  22.6w 469361    F51  C~1vV5      
2015 03  21.48940  13 41 04.877  -05 00 07.10  22.7w 469361    F51  C~1vV5      
2015 03  21.50069  13 41 04.817  -05 00 06.66  22.6w 469361    F51  C~1vV5      
2015 03  21.51199  13 41 04.792  -05 00 06.34  22.5w 469361    F51  C~1vV5      
2015 05  24.31449  13 36 29.123  -04 29 36.05  21.6i 469361    F51  C~1vV5      
2015 05  24.33723  13 36 29.049  -04 29 35.64  21.9i 469361    F51  C~1vV5      
2015 05  24.34857  13 36 29.016  -04 29 35.80  21.7i 469361    F51  C~1vV5      

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    -0.15       0.00     0.82
  2   0.0548      0.00    -0.13       0.00    -0.14
  3   1.1165      0.00    -0.09       0.00     0.18
  4   1.1167      0.00    -0.02       0.00     0.33
  5   1.2019      0.00     0.11       0.00    -0.07
  6   1.2020      0.00     0.04       0.00    -0.00
  7   1.2047      0.00     0.11       0.00    -0.01
  8   1.2719      0.00     0.43       0.00     0.07
  9   1.2722      0.00     0.38       0.00     0.05
 10   1.3211      0.00     0.33       0.00     0.23
 11   1.3213      0.00     0.27       0.00     0.16
 12   1.9800      0.00    -0.37       0.00    -0.40
 13   1.9826      0.00    -0.26       0.00    -0.42
 14   1.9854      0.00    -0.60       0.00    -0.43
 15   3.0609      0.00    -0.24       0.00     0.25
 16   3.0610      0.00    -0.08       0.00    -0.19
 17   4.1283      0.00     0.06       0.00    -0.00
 18   4.1283      0.00     0.07       0.00     0.19
 19   8.1424      0.00     0.79       0.00    -0.25
 20   8.1424      0.00     0.78       0.00    -0.26
 21   8.1424      0.00     0.77       0.00    -0.27
 22   8.1425      0.00     0.75       0.00    -0.28
 23   8.2156      0.00    -0.12       0.00     0.18
 24   8.2158      0.00    -0.74       0.00     0.39
 25  12.1670      0.00    -0.33       0.00     0.09
 26  12.1670      0.00    -0.44       0.00    -0.10
 27  12.1670      0.00    -0.24       0.00    -0.05
 28  13.1581      0.00    -0.08       0.00     0.02
 29  13.1581      0.00    -0.09       0.00     0.06
 30  13.1581      0.00    -0.23       0.00     0.07
 31  13.1582      0.00    -0.18       0.00     0.13
 32  14.0454      0.00     0.05       0.00    -0.17
 33  14.0454      0.00     0.16       0.00     0.08
 34  14.0454      0.00     0.08       0.00     0.12
 35  14.0455      0.00     0.01       0.00     0.12
 36  14.2611      0.00    -0.03       0.00    -0.04
 37  14.2611      0.00    -0.13       0.00     0.03
 38  14.2611      0.00    -0.08       0.00    -0.13
 39  14.2612      0.00    -0.12       0.00    -0.23
 40  14.3760      0.00    -0.04       0.00     0.04
 41  14.3761      0.00    -0.07       0.00     0.03
 42  14.3761      0.00    -0.02       0.00     0.09
 43  14.9518      0.00    -0.05       0.00     0.06
 44  14.9519      0.00     0.11       0.00    -0.00
 45  14.9519      0.00     0.14       0.00     0.02
 46  14.9519      0.00     0.18       0.00     0.15
 47  15.1021      0.00     0.28       0.00     0.05
 48  15.1021      0.00     0.24       0.00    -0.36
 49  15.1022      0.00     0.04       0.00    -0.27
 50  15.1022      0.00     0.36       0.00    -0.31
 51  15.2769      0.00    -0.04       0.00     0.16
 52  15.2769      0.00     0.07       0.00     0.13
 53  15.2770      0.00     0.19       0.00    -0.25

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.

469361    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        42.964    42.964    42.964
ecceobj         0.118     0.118     0.118
incobj         17.185    17.185    17.185
qmin           37.249    37.231    37.234
qmax           49.496    49.493    49.533
amean          43.228    43.228    43.228
amin           42.886    42.883    42.884
amax           43.623    43.598    43.612
emean           0.121     0.121     0.121
emin            0.107     0.107     0.106
emax            0.136     0.136     0.136
imean          17.358    17.358    17.358
imin           16.799    16.797    16.796
imax           17.907    17.905    17.907
excite_mean     0.322     0.322     0.322
fracstop        1.000     1.000     1.000
cjmean          2.967     2.967     2.967

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       174.1     174.3     174.2
kozaiamp        180.0     180.0     180.0