Orbit Fit and Astrometric record for 503273

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: 503273    
# Created Sat Dec 16 02:36:55 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   49 observations of   51
# Arc:   3.16y
# First observation: 2014/07/25
#  Last observation: 2017/09/22
# Chi-squared of fit:    97.52 DOF:   92 RMS:  0.25
# Min/Max residuals:    -0.53    0.91
# Exact a, adot, b, bdot, g, gdot:
  3.300996E-05  2.304129E-01  2.432674E-06  2.051939E-02  1.121886E-01 -1.128007E-01
# 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
   -8.700897  -40.931982    0.293541   -0.147434   -0.963826  2456863.979218
# Heliocentric elements and errors
Epoch:              2456864.5000  =  2014/07/26
Mean Anomaly:          330.80856 +/-     0.000
Argument of Peri:       30.75896 +/-     0.000
Long of Asc Node:       12.85401 +/-     0.000
Inclination:             9.48914 +/-     0.000
Eccentricity:         0.54138759 +/-    0.0000
Semi-Major Axis:     14.42156215 +/-    0.0000
Time of Perihelion: 2458486.5710 +/-       0.0
Perihelion:           6.61390738 +/-    0.0000
Aphelion:            22.22921692 +/-    0.0000
Period (y)               54.7680 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X            7.19897202 +/-    0.0000
Ecliptic Y           -6.63137243 +/-    0.0000
Ecliptic Z           -1.34833513 +/-    0.0000
Ecliptic XDOT         0.00168042 +/-    0.0000
Ecliptic YDOT         0.00597717 +/-    0.0000
Ecliptic ZDOT         0.00091155 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO    9.88034530 +/-    0.0000
Geocenter to KBO      8.91372480 +/-    0.0000
# Hcoef: 11.61

The following table shows the complete astrometric record for 503273. 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 (503273) followed by the observatory code and reference code for the source of the astrometry.

2014 07  25.47844  21 37 43.838  -23 21 12.57  21.6w 503273    F51  C~17NN      
2014 07  25.48968  21 37 43.640  -23 21 13.55  21.7w 503273    F51  C~17NN      
2014 07  25.51219  21 37 43.264  -23 21 15.62  21.4w 503273    F51  C~17NN      
2014 07  27.027319 21 37 17.710  -23 23 24.94  20.9R 503273    J04  C~17NN      
2014 07  27.036124 21 37 17.575  -23 23 25.55  20.9R 503273    J04  C~17NN      
2014 07  27.044935 21 37 17.396  -23 23 26.51  21.1R 503273    J04  C~17NN      
2015 08  10.46489  22 30 27.880  -17 02 57.85  21.1w 503273    F51  C~1W0A      
2015 08  10.47669  22 30 27.665  -17 02 58.95  21.2w 503273    F51  C~1W0A      
2015 08  10.48867  22 30 27.457  -17 03 00.09  21.0w 503273    F51  C~1W0A      
2015 08  10.50056  22 30 27.238  -17 03 01.13  21.1w 503273    F51  C~1W0A      
2015 08  11.46870  22 30 10.306  -17 04 32.00  21.1w 503273    F51  C~1W0A      
2015 08  11.48058  22 30 10.092  -17 04 33.06  21.1w 503273    F51  C~1W0A      
2015 08  11.49254  22 30 09.880  -17 04 34.14  21.2w 503273    F51  C~1W0A      
2015 08  11.50441  22 30 09.660  -17 04 35.35  21.1w 503273    F51  C~1W0A      
2015 08  12.46223  22 29 52.733  -17 06 05.18  21.1w 503273    F51  C~1W0A      
2015 08  12.47414  22 29 52.515  -17 06 06.22  21.0w 503273    F51  C~1W0A      
2015 08  12.48605  22 29 52.303  -17 06 07.39  21.1w 503273    F51  C~1W0A      
2015 08  12.49796  22 29 52.083  -17 06 08.47  21.0w 503273    F51  C~1W0A      
2015 08  18.23937  22 28 07.45   -17 15 00.4   20.8V 503273    807  C~1W0A      
2015 08  18.24593  22 28 07.29   -17 15 01.4   20.5V 503273    807  C~1W0A      
2015 08  18.25269  22 28 07.17   -17 15 02.3   20.4V 503273    807  C~1W0A      
2015 09  18.63315  22 18 19.34   -17 53 57.1   20.1R 503273    Q62  C~1Xwo      
2015 09  18.65135  22 18 19.02   -17 53 57.9         503273    Q62  C~1Xwo      
2015 09  20.59670  22 17 46.12   -17 55 28.1   20.2R 503273    Q62  C~1Xwo      
2015 09  20.64208  22 17 45.38   -17 55 30.1         503273    Q62  C~1Xwo      
2016 08  25.97244  23 33 58.71   -07 40 37.1   20.1R 503273    461  C~1x91      
2016 08  25.97890  23 33 58.60   -07 40 38.1   20.3R 503273    461  C~1x91      
2016 08  25.98537  23 33 58.48   -07 40 39.0   20.2R 503273    461  C~1x91      
2016 08  26.97938  23 33 40.77   -07 42 10.4   20.3R 503273    461  C~1x91      
2016 08  26.98586  23 33 40.64   -07 42 10.8   19.9R 503273    461  C~1x91      
2016 08  26.99231  23 33 40.54   -07 42 11.5   20.1R 503273    461  C~1x91      
2016 08  27.45814  23 33 32.194  -07 42 54.11  20.6w 503273    F51  C~1x91      
2016 08  27.46925  23 33 31.978  -07 42 55.10  20.5w 503273    F51  C~1x91      
2016 08  27.48037  23 33 31.774  -07 42 56.11  20.5w 503273    F51  C~1x91      
2016 08  27.49147  23 33 31.572  -07 42 57.04  20.6w 503273    F51  C~1x91      
2016 08  27.97329  23 33 22.87   -07 43 42.3   20.0R 503273    461  C~1x91      
2016 08  27.97975  23 33 22.76   -07 43 42.9   20.0R 503273    461  C~1x91      
2016 08  28.97580  23 33 04.60   -07 45 15.1   20.3R 503273    461  C~1x91      
2016 08  28.98227  23 33 04.48   -07 45 16.2   20.2R 503273    461  C~1x91      
2016 08  28.98872  23 33 04.35   -07 45 16.8   20.4R 503273    461  C~1x91      
2016 10  04.25118  23 21 23.40   -08 36 32.8   20.1V 503273    G96  C~1yuA      
2016 10  04.25743  23 21 23.31   -08 36 32.6   20.7V 503273    G96  C~1yuA      
2016 10  04.26368  23 21 23.20   -08 36 34.1   19.9V 503273    G96  C~1yuA      
2016 10  04.27004  23 21 23.07   -08 36 33.5   20.8V 503273    G96  C~1yuA      
2017 08  24.21693  00 56 40.27   +05 21 25.2   20.0V 503273    I17  C~2Jd6      
2017 08  24.30660  00 56 39.00   +05 21 19.0   20.8V 503273    I17  C~2Jd6      
2017 08  24.39185  00 56 38.16   +05 21 17.2   20.1R 503273    H36  C~2Jd6      
2017 08  24.40920  00 56 37.98   +05 21 17.2   20.4R 503273    H36  C~2Jd6      
2017 09  22.42356  00 49 00.129  +04 54 57.56  20.1w 503273    F51  C~2LU4      
2017 09  22.43553  00 48 59.880  +04 54 56.58  20.1w 503273    F51  C~2LU4      
2017 09  22.44748  00 48 59.635  +04 54 55.69  20.1w 503273    F51  C~2LU4      

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 (  -0.86)      0.00 (  -3.27)
  2   0.0000      0.00    -0.02       0.00     0.10
  3   0.0001      0.00     0.14       0.00    -0.05
  4   0.0042      0.00     0.25       0.00    -0.18
  5   0.0043      0.00     0.52       0.00    -0.04
  6   0.0043      0.00     0.13       0.00    -0.24
  7   1.0431      0.00     0.27       0.00     0.15
  8   1.0431      0.00     0.20       0.00     0.16
  9   1.0431      0.00     0.29       0.00     0.14
 10   1.0432      0.00     0.20       0.00     0.22
 11   1.0458      0.00     0.20       0.00     0.12
 12   1.0459      0.00     0.21       0.00     0.18
 13   1.0459      0.00     0.27       0.00     0.22
 14   1.0459      0.00     0.18       0.00     0.12
 15   1.0486      0.00     0.13       0.00     0.03
 16   1.0486      0.00     0.12       0.00     0.11
 17   1.0486      0.00     0.20       0.00     0.06
 18   1.0487      0.00     0.16       0.00     0.09
 19   1.0644      0.00     0.48       0.00     0.60
 20   1.0644      0.00    -0.05       0.00     0.20
 21   1.0644      0.00     0.08       0.00    -0.08
 22   1.1503      0.00     0.91       0.00    -0.14
 23   1.1504      0.00     0.86       0.00    -0.08
 24   1.1557      0.00     0.03       0.00    -0.30
 25   1.1558      0.00     0.50       0.00    -0.35
 26   2.0876      0.00     0.22       0.00     0.64
 27   2.0876      0.00     0.32       0.00     0.23
 28   2.0876      0.00     0.27       0.00    -0.07
 29   2.0904      0.00     0.04       0.00    -0.06
 30   2.0904      0.00    -0.13       0.00     0.13
 31   2.0904      0.00     0.13       0.00     0.03
 32   2.0917      0.00     0.30       0.00     0.01
 33   2.0917      0.00     0.15       0.00     0.05
 34   2.0917      0.00     0.18       0.00     0.07
 35   2.0918      0.00     0.23       0.00     0.16
 36   2.0931      0.00     0.15       0.00     0.00
 37   2.0931      0.00     0.29       0.00     0.00
 38   2.0958      0.00     0.18       0.00     0.46
 39   2.0958      0.00     0.19       0.00    -0.03
 40   2.0959      0.00     0.05       0.00    -0.03
 41   2.1951      0.00    -0.21       0.00     0.10
 42   2.1952      0.00     0.15       0.00     0.69
 43   2.1952      0.00     0.21       0.00    -0.43
 44   2.1952      0.00    -0.00       0.00     0.55
 45   3.0821      0.00 (   4.47)      0.00 (   3.65)
 46   3.0823      0.00    -0.26       0.00    -0.53
 47   3.0826      0.00     0.48       0.00    -0.43
 48   3.0826      0.00     0.59       0.00    -0.03
 49   3.1621      0.00     0.39       0.00     0.16
 50   3.1621      0.00     0.34       0.00     0.11
 51   3.1621      0.00     0.35       0.00     0.16

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.

503273    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        14.428    14.428    14.428
ecceobj         0.544     0.544     0.544
incobj          9.504     9.504     9.504
qmin            6.581     6.581     6.581
qmax           23.165    22.603    22.449
amean          14.514    14.543    14.484
amin           13.867    14.428    14.247
amax           15.025    14.738    14.683
emean           0.530     0.538     0.532
emin            0.499     0.534     0.517
emax            0.544     0.544     0.544
imean          11.116    10.580    10.286
imin            9.758     9.758     9.758
imax           12.131    11.660    10.840
excite_mean     0.564     0.569     0.561
fracstop        0.001     0.000     0.000
cjmean          3.227     3.220     3.232

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        61.5      47.4      45.1
kozaiamp         31.1      14.5      11.0