Orbit Fit and Astrometric record for 472651

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: 472651    
# Created Thu Dec 14 02:36:52 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   55 observations of   55
# Arc:  13.18y
# First observation: 2003/10/23
#  Last observation: 2016/12/25
# Chi-squared of fit:   117.81 DOF:  104 RMS:  0.26
# Min/Max residuals:    -0.85    1.31
# Exact a, adot, b, bdot, g, gdot:
  1.840863E-05  5.178398E-02 -3.702560E-06 -9.846785E-03  4.485436E-02 -1.288656E-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
   36.989297  114.257298    0.992219    0.053040   -0.070331  2452935.962455
# Heliocentric elements and errors
Epoch:              2452936.5000  =  2003/10/24
Mean Anomaly:          254.63382 +/-     0.000
Argument of Peri:      237.77491 +/-     0.000
Long of Asc Node:        6.33442 +/-     0.000
Inclination:            37.73071 +/-     0.000
Eccentricity:         0.32188042 +/-    0.0000
Semi-Major Axis:     19.19384203 +/-    0.0000
Time of Perihelion: 2461926.0933 +/-       0.0
Perihelion:          13.01572008 +/-    0.0000
Aphelion:            25.37196398 +/-    0.0000
Period (y)               84.0913 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           -6.45106326 +/-    0.0000
Ecliptic Y           16.72644559 +/-    0.0000
Ecliptic Z           13.41369728 +/-    0.0000
Ecliptic XDOT        -0.00277693 +/-    0.0000
Ecliptic YDOT        -0.00154773 +/-    0.0000
Ecliptic ZDOT        -0.00095317 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   22.39023870 +/-    0.0000
Geocenter to KBO     22.29450031 +/-    0.0000
# Hcoef:  8.44

The following table shows the complete astrometric record for 472651. 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 (472651) followed by the observatory code and reference code for the source of the astrometry.

2003 10  23.461712 08 29 42.21   +57 19 08.2   22.4V 472651    645  C~1SMQ      
2003 10  23.462452 08 29 42.22   +57 19 08.3   22.0V 472651    645  C~1SMQ      
2003 10  23.465029 08 29 42.23   +57 19 08.4   22.8V 472651    645  C~1SMQ      
2003 11  30.375022 08 28 45.50   +58 16 02.5   22.0V 472651    645  C~1SMQ      
2003 11  30.375851 08 28 45.49   +58 16 02.6   21.8V 472651    645  C~1SMQ      
2003 11  30.378339 08 28 45.47   +58 16 02.8   22.6V 472651    645  C~1SMQ      
2014 02  10.55200  11 00 23.038  +33 21 57.44  20.8i 472651    F51  C~1vYK      
2014 02  10.56428  11 00 22.882  +33 21 58.26  20.8i 472651    F51  C~1vYK      
2014 02  10.57621  11 00 22.736  +33 21 59.08  20.8i 472651    F51  C~1vYK      
2014 02  10.58805  11 00 22.590  +33 21 59.80  20.8i 472651    F51  C~1vYK      
2015 01  14.62454  11 17 32.496  +28 42 30.53  21.0r 472651    F51  C~1vYK      
2015 01  14.63406  11 17 32.437  +28 42 31.23  20.9r 472651    F51  C~1vYK      
2015 01  14.64361  11 17 32.370  +28 42 31.96  20.9r 472651    F51  C~1vYK      
2015 01  14.65301  11 17 32.308  +28 42 32.52  20.9r 472651    F51  C~1vYK      
2015 02  27.39437  11 09 56.70   +29 31 01.6   20.5V 472651    G96  C~1MkL      
2015 02  27.40167  11 09 56.61   +29 31 01.9   20.2V 472651    G96  C~1MkL      
2015 02  27.40897  11 09 56.50   +29 31 02.4   20.2V 472651    G96  C~1MkL      
2015 03  01.96858  11 09 23.39   +29 32 57.8   20.6R 472651    J95  C~1MkL      
2015 03  02.01711  11 09 22.79   +29 32 59.8   20.4R 472651    J95  C~1MkL      
2015 03  02.04654  11 09 22.43   +29 33 01.5   20.1R 472651    J95  C~1MkL      
2015 03  03.94626  11 08 57.62   +29 34 20.2   20.6R 472651    J95  C~1MkL      
2015 03  03.99805  11 08 56.98   +29 34 23.1         472651    J95  C~1MkL      
2015 03  09.39769  11 07 46.36   +29 37 38.8   21.2R 472651    291  C~1MkL      
2015 03  09.43551  11 07 45.86   +29 37 40.2   20.4R 472651    291  C~1MkL      
2015 03  16.46840  11 06 14.545  +29 40 41.60  20.9w 472651    F51  C~1vYK      
2015 03  16.47892  11 06 14.406  +29 40 41.85  20.8w 472651    F51  C~1vYK      
2015 03  16.48950  11 06 14.269  +29 40 42.03  20.8w 472651    F51  C~1vYK      
2015 03  16.50010  11 06 14.130  +29 40 42.29  20.8w 472651    F51  C~1vYK      
2015 03  27.354039 11 03 58.632  +29 42 26.18  20.5R 472651    568  C~1PGK      
2015 03  27.359929 11 03 58.558  +29 42 26.20  20.6R 472651    568  C~1PGK      
2015 03  27.372054 11 03 58.408  +29 42 26.18  20.7R 472651    568  C~1PGK      
2015 03  27.522579 11 03 56.573  +29 42 25.96  20.8R 472651    568  C~1PGL      
2015 04  16.252561 11 00 26.014  +29 35 50.55  20.7R 472651    568  C~1Qer      
2015 04  16.267946 11 00 25.872  +29 35 50.03  19.9R 472651    568  C~1Qer      
2015 04  16.275627 11 00 25.801  +29 35 49.80  19.9R 472651    568  C~1Qer      
2015 04  16.283230 11 00 25.733  +29 35 49.45  19.8R 472651    568  C~1Qer      
2015 04  16.291089 11 00 25.653  +29 35 49.15  20.1R 472651    568  C~1Qer      
2015 04  20.33392  10 59 50.416  +29 32 55.76  21.3w 472651    F51  C~1vYK      
2015 04  20.34673  10 59 50.318  +29 32 55.14  21.1w 472651    F51  C~1vYK      
2015 04  20.35959  10 59 50.208  +29 32 54.52  21.1w 472651    F51  C~1vYK      
2015 04  20.37258  10 59 50.099  +29 32 53.84  21.1w 472651    F51  C~1vYK      
2015 04  21.35757  10 59 41.997  +29 32 06.85  21.0w 472651    F51  C~1vYK      
2015 04  21.36966  10 59 41.892  +29 32 06.37  21.1w 472651    F51  C~1vYK      
2015 04  21.38178  10 59 41.800  +29 32 05.82  21.1w 472651    F51  C~1vYK      
2015 04  21.39527  10 59 41.678  +29 32 05.30  21.2w 472651    F51  C~1vYK      
2015 04  23.30285  10 59 26.54   +29 30 28.8   21.0R 472651    G37  C~1Rf3      
2015 04  23.31149  10 59 26.48   +29 30 28.4         472651    G37  C~1Rf3      
2015 04  23.31923  10 59 26.42   +29 30 28.0         472651    G37  C~1Rf3      
2016 04  04.92602  11 14 59.85   +25 20 40.1   20.0R 472651    461  C~1qAW      
2016 04  04.95911  11 14 59.46   +25 20 39.9   20.0R 472651    461  C~1qAW      
2016 04  30.35740  11 11 07.220  +25 07 34.19  21.0w 472651    F51  C~1s3S      
2016 04  30.38090  11 11 07.062  +25 07 32.97  21.2w 472651    F51  C~1s3S      
2016 04  30.39210  11 11 06.962  +25 07 32.11  21.1w 472651    F51  C~1s3S      
2016 12  25.631150 11 43 02.790  +19 22 16.14  20.9G 472651    568  C~25Qo      
2016 12  25.632420 11 43 02.791  +19 22 16.15  21.0G 472651    568  C~25Qo      

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    -0.02       0.00     1.31
  2   0.0000      0.00     0.02       0.00     0.03
  3   0.0000      0.00    -0.01       0.00    -0.08
  4   0.1038      0.00     0.06       0.00    -0.11
  5   0.1038      0.00     0.01       0.00    -0.08
  6   0.1038      0.00     0.01       0.00    -0.11
  7  10.3028      0.00     0.30       0.00    -0.18
  8  10.3028      0.00     0.23       0.00    -0.14
  9  10.3028      0.00     0.23       0.00    -0.08
 10  10.3029      0.00     0.22       0.00    -0.11
 11  11.2284      0.00     0.03       0.00    -0.04
 12  11.2284      0.00     0.12       0.00    -0.04
 13  11.2284      0.00     0.08       0.00    -0.00
 14  11.2284      0.00     0.11       0.00    -0.13
 15  11.3482      0.00    -0.57       0.00     0.19
 16  11.3482      0.00    -0.49       0.00     0.15
 17  11.3482      0.00    -0.70       0.00     0.31
 18  11.3553      0.00     0.02       0.00    -0.18
 19  11.3554      0.00     0.60       0.00    -0.30
 20  11.3555      0.00     1.01       0.00     0.12
 21  11.3607      0.00    -0.07       0.00    -0.85
 22  11.3608      0.00     0.58       0.00    -0.07
 23  11.3756      0.00     0.28       0.00    -0.02
 24  11.3757      0.00     0.29       0.00     0.20
 25  11.3950      0.00     0.14       0.00    -0.15
 26  11.3950      0.00     0.12       0.00    -0.10
 27  11.3950      0.00     0.14       0.00    -0.12
 28  11.3950      0.00     0.13       0.00    -0.06
 29  11.4248      0.00    -0.03       0.00    -0.01
 30  11.4248      0.00    -0.06       0.00     0.01
 31  11.4248      0.00    -0.08       0.00     0.00
 32  11.4252      0.00    -0.03       0.00     0.01
 33  11.4792      0.00    -0.09       0.00    -0.05
 34  11.4793      0.00    -0.06       0.00     0.02
 35  11.4793      0.00    -0.05       0.00     0.09
 36  11.4793      0.00    -0.01       0.00     0.03
 37  11.4793      0.00    -0.11       0.00     0.04
 38  11.4904      0.00     0.15       0.00     0.12
 39  11.4904      0.00     0.32       0.00     0.10
 40  11.4905      0.00     0.32       0.00     0.08
 41  11.4905      0.00     0.35       0.00     0.02
 42  11.4932      0.00     0.26       0.00    -0.01
 43  11.4932      0.00     0.20       0.00     0.11
 44  11.4933      0.00     0.33       0.00     0.15
 45  11.4933      0.00     0.19       0.00     0.30
 46  11.4985      0.00    -0.08       0.00     0.15
 47  11.4986      0.00     0.04       0.00     0.20
 48  11.4986      0.00     0.05       0.00     0.22
 49  12.4503      0.00     0.37       0.00     0.19
 50  12.4504      0.00     0.16       0.00     0.25
 51  12.5199      0.00     0.22       0.00    -0.00
 52  12.5200      0.00     0.30       0.00     0.06
 53  12.5200      0.00    -0.03       0.00    -0.19
 54  13.1750      0.00    -0.06       0.00    -0.12
 55  13.1750      0.00    -0.03       0.00    -0.15

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.

472651    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        19.155    19.155    19.155
ecceobj         0.321     0.321     0.321
incobj         37.747    37.747    37.747
qmin           12.852    12.852    12.852
qmax           25.301    25.300    25.301
amean          19.063    19.062    19.063
amin           18.952    18.952    18.952
amax           19.155    19.154    19.155
emean           0.321     0.321     0.321
emin            0.319     0.319     0.319
emax            0.323     0.323     0.323
imean          38.067    38.067    38.068
imin           38.054    38.054    38.054
imax           38.089    38.089    38.089
excite_mean     0.695     0.695     0.695
fracstop        0.000     0.000     0.000
cjmean          2.755     2.755     2.755

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       239.3     239.3     239.3
kozaiamp          1.3       1.3       1.3