Orbit Fit and Astrometric record for 469610

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: 469610    
# Created Sat Oct 21 01:36:50 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   35 observations of   35
# Arc:  11.08y
# First observation: 2004/04/24
#  Last observation: 2015/05/25
# Chi-squared of fit:    45.27 DOF:   64 RMS:  0.20
# Min/Max residuals:    -0.43    0.58
# Exact a, adot, b, bdot, g, gdot:
  1.491956E-05  2.351347E-02 -2.435253E-07 -5.314563E-04  2.413053E-02 -3.354482E-04
# 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
    0.751074 -132.662323    0.218963    0.012895   -0.979731  2453119.929133
# Heliocentric elements and errors
Epoch:              2453120.5000  =  2004/04/25
Mean Anomaly:          324.70657 +/-     0.000
Argument of Peri:      187.58564 +/-     0.000
Long of Asc Node:       76.67599 +/-     0.000
Inclination:             1.48341 +/-     0.000
Eccentricity:         0.02841998 +/-    0.0000
Semi-Major Axis:     43.41766022 +/-    0.0000
Time of Perihelion: 2463364.9690 +/-       0.0
Perihelion:          42.18373125 +/-    0.0000
Aphelion:            44.65158919 +/-    0.0000
Period (y)              286.0934 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -28.90975865 +/-    0.0000
Ecliptic Y          -31.04213076 +/-    0.0000
Ecliptic Z            0.54324150 +/-    0.0000
Ecliptic XDOT         0.00198406 +/-    0.0000
Ecliptic YDOT        -0.00178746 +/-    0.0000
Ecliptic ZDOT        -0.00006066 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.42268318 +/-    0.0000
Geocenter to KBO     41.44131623 +/-    0.0000
# Hcoef:  6.57

The following table shows the complete astrometric record for 469610. 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 (469610) followed by the observatory code and reference code for the source of the astrometry.

2004 04  24.42839  15 00 22.47   -16 17 15.1   22.8g 469610    568  C~0VDp      
2004 04  24.45454  15 00 22.34   -16 17 14.7   22.9g 469610    568  C~0VDp      
2004 04  25.43410  15 00 17.79   -16 16 55.5   22.8g 469610    568  C~0VDp      
2004 04  25.45680  15 00 17.67   -16 16 55.1   23.0g 469610    568  C~0VDp      
2004 04  25.48375  15 00 17.57   -16 16 54.4   22.9g 469610    568  C~0VDp      
2004 07  08.26064  14 55 28.24   -15 57 14.6   22.8i 469610    568  C~0VDp      
2004 07  08.32344  14 55 28.12   -15 57 14.2   22.6i 469610    568  C~0VDp      
2004 07  08.38484  14 55 28.00   -15 57 13.7   22.6i 469610    568  C~0VDp      
2005 05  08.42069  15 04 39.94   -16 37 05.0   22.7r 469610    568  C~0VDp      
2005 05  08.45260  15 04 39.78   -16 37 04.5   22.7r 469610    568  C~0VDp      
2005 05  08.48437  15 04 39.63   -16 37 03.8   22.7r 469610    568  C~0VDp      
2005 05  10.47732  15 04 30.08   -16 36 25.0   22.5r 469610    568  C~0VDp      
2005 07  11.06951  15 00 41.07   -16 21 23.3   22.6R 469610    809  C~0VDp      
2005 07  11.10472  15 00 41.01   -16 21 23.0   22.4R 469610    809  C~0VDp      
2006 06  03.39240  15 08 04.23   -16 53 07.6         469610    568  C~0VDp      
2006 06  03.40838  15 08 04.20   -16 53 07.5         469610    568  C~0VDp      
2006 06  03.42486  15 08 04.08   -16 53 07.1         469610    568  C~0VDp      
2012 05  20.38208  15 42 00.828  -19 09 20.63  22.6w 469610    F51  C~1vVK      
2012 05  20.39669  15 42 00.736  -19 09 20.25  22.6w 469610    F51  C~1vVK      
2012 05  20.41129  15 42 00.657  -19 09 20.44  22.4w 469610    F51  C~1vVK      
2012 05  20.42584  15 42 00.564  -19 09 19.74  22.2w 469610    F51  C~1vVK      
2014 05  08.47430  15 54 11.765  -19 51 36.15  22.8w 469610    F51  C~1vVK      
2014 05  08.48639  15 54 11.711  -19 51 35.87  22.7w 469610    F51  C~1vVK      
2014 05  08.49852  15 54 11.644  -19 51 35.59  22.9w 469610    F51  C~1vVK      
2014 05  08.51063  15 54 11.590  -19 51 35.49  22.6w 469610    F51  C~1vVK      
2014 07  01.32394  15 50 04.210  -19 39 28.66  22.6w 469610    F51  C~1vVK      
2014 07  01.33521  15 50 04.172  -19 39 28.66  22.8w 469610    F51  C~1vVK      
2014 07  01.34648  15 50 04.118  -19 39 28.59  22.5w 469610    F51  C~1vVK      
2014 07  01.35776  15 50 04.082  -19 39 28.53  22.9w 469610    F51  C~1vVK      
2015 04  15.38200  16 01 30.76   -20 14 55.5   22.3R 469610    695  C~1RHU      
2015 04  15.42005  16 01 30.63   -20 14 55.1         469610    695  C~1RHU      
2015 04  15.45795  16 01 30.47   -20 14 54.5         469610    695  C~1RHU      
2015 05  25.38031  15 58 27.483  -20 06 17.81  21.7i 469610    F51  C~1vVK      
2015 05  25.40295  15 58 27.373  -20 06 17.77  21.4i 469610    F51  C~1vVK      
2015 05  25.41425  15 58 27.343  -20 06 17.81  21.7i 469610    F51  C~1vVK      

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    -0.21       0.00     0.58
  2   0.0001      0.00     0.05       0.00    -0.17
  3   0.0028      0.00    -0.06       0.00    -0.08
  4   0.0028      0.00    -0.24       0.00    -0.12
  5   0.0029      0.00     0.17       0.00     0.05
  6   0.2049      0.00    -0.23       0.00     0.17
  7   0.2051      0.00    -0.17       0.00     0.13
  8   0.2052      0.00    -0.17       0.00     0.20
  9   1.0376      0.00     0.14       0.00    -0.17
 10   1.0377      0.00     0.08       0.00    -0.29
 11   1.0378      0.00     0.16       0.00    -0.21
 12   1.0433      0.00     0.21       0.00    -0.17
 13   1.2119      0.00     0.33       0.00    -0.03
 14   1.2120      0.00     0.42       0.00     0.04
 15   2.1080      0.00    -0.15       0.00     0.31
 16   2.1081      0.00     0.46       0.00     0.14
 17   2.1081      0.00    -0.24       0.00     0.26
 18   8.0711      0.00     0.23       0.00    -0.14
 19   8.0711      0.00    -0.05       0.00     0.01
 20   8.0711      0.00    -0.13       0.00    -0.41
 21   8.0712      0.00    -0.43       0.00     0.06
 22  10.0371      0.00     0.09       0.00    -0.14
 23  10.0371      0.00     0.17       0.00    -0.03
 24  10.0372      0.00     0.05       0.00     0.07
 25  10.0372      0.00     0.13       0.00     0.00
 26  10.1845      0.00     0.12       0.00     0.19
 27  10.1845      0.00     0.17       0.00     0.07
 28  10.1846      0.00    -0.02       0.00     0.03
 29  10.1846      0.00     0.06       0.00    -0.03
 30  10.9732      0.00    -0.12       0.00    -0.03
 31  10.9733      0.00     0.11       0.00    -0.03
 32  10.9734      0.00    -0.12       0.00     0.17
 33  11.0827      0.00    -0.02       0.00     0.19
 34  11.0828      0.00     0.05       0.00    -0.08
 35  11.0828      0.00     0.46       0.00    -0.28

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.

469610    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.014    43.014    43.014
ecceobj         0.025     0.025     0.025
incobj          1.487     1.487     1.487
qmin           41.534    41.535    41.539
qmax           45.267    45.267    45.268
amean          43.330    43.330    43.330
amin           42.994    42.998    42.993
amax           43.667    43.668    43.667
emean           0.020     0.020     0.020
emin            0.001     0.001     0.001
emax            0.037     0.037     0.037
imean           0.846     0.846     0.846
imin            0.321     0.321     0.321
imax            1.217     1.217     1.217
excite_mean     0.025     0.025     0.025
fracstop        1.000     1.000     1.000
cjmean          3.093     3.093     3.093

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       193.4     193.4     193.4
kozaiamp        179.9     179.9     179.9