Orbit Fit and Astrometric record for 443843

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: 443843    
# Created Mon Dec 11 02:36:49 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   63 observations of   63
# Arc:  16.18y
# First observation: 2001/03/26
#  Last observation: 2017/05/29
# Chi-squared of fit:   149.05 DOF:  120 RMS:  0.27
# Min/Max residuals:    -0.74    1.24
# Exact a, adot, b, bdot, g, gdot:
  1.726362E-05  2.522819E-02  3.412400E-06  4.713208E-03  2.485771E-02  1.038451E-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
   -1.199646 -160.141064    0.239349   -0.020545   -0.972956  2451994.883983
# Heliocentric elements and errors
Epoch:              2451994.5000  =  2001/03/26
Mean Anomaly:           16.44051 +/-     0.000
Argument of Peri:      332.84185 +/-     0.000
Long of Asc Node:      205.75582 +/-     0.000
Inclination:            10.66271 +/-     0.000
Eccentricity:         0.11629560 +/-    0.0000
Semi-Major Axis:     46.30172302 +/-    0.0000
Time of Perihelion: 2446739.0875 +/-       0.0
Perihelion:          40.91703622 +/-    0.0000
Aphelion:            51.68640981 +/-    0.0000
Period (y)              315.0677 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -38.82077421 +/-    0.0000
Ecliptic Y          -13.76392981 +/-    0.0000
Ecliptic Z           -0.84207477 +/-    0.0000
Ecliptic XDOT         0.00081781 +/-    0.0000
Ecliptic YDOT        -0.00265307 +/-    0.0000
Ecliptic ZDOT         0.00051680 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.19715229 +/-    0.0000
Geocenter to KBO     40.22897173 +/-    0.0000
# Hcoef:  7.23

The following table shows the complete astrometric record for 443843. 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 (443843) followed by the observatory code and reference code for the source of the astrometry.

2001 03  26.38324  13 11 30.18   -08 52 35.6   24.2R 443843    695  Cd1722      
2001 03  26.46289  13 11 29.81   -08 52 33.3         443843    695  Cd1722      
2001 04  29.36737  13 08 58.89   -08 35 36.2   22.8R 443843    695  Cd1722      
2001 04  29.40154  13 08 58.75   -08 35 35.1         443843    695  Cd1722      
2001 05  22.02874  13 07 35.48   -08 25 40.8   22.8R 443843    807  Cd1722      
2001 05  22.03645  13 07 35.43   -08 25 40.0   22.7R 443843    807  Ci2655      
2001 05  22.13877  13 07 35.12   -08 25 38.1         443843    807  Cd1722      
2001 05  22.14626  13 07 35.08   -08 25 37.6         443843    807  Ci2655      
2002 04  08.12135  13 16 23.74   -09 04 03.6   21.2R 443843    807  Cf4616      
2002 04  08.17047  13 16 23.52   -09 04 02.3         443843    807  Cf4616      
2002 04  09.21058  13 16 18.75   -09 03 31.1         443843    807  Cf4616      
2002 04  10.36334  13 16 13.61   -09 02 57.4   21.8R 443843    695  Cg5748      
2002 04  10.41753  13 16 13.33   -09 02 55.7         443843    695  Cg5748      
2002 08  08.98453  13 13 20.28   -08 37 53.5   22.0R 443843    807  Ch1320      
2002 08  09.98569  13 13 23.58   -08 38 10.0         443843    807  Ch1320      
2002 08  10.98958  13 13 27.04   -08 38 27.0         443843    807  Ch1320      
2002 08  11.98779  13 13 30.51   -08 38 44.1         443843    807  Ch1320      
2004 03  20.40644  13 29 22.77   -09 46 56.7   22.9R 443843    662  Ck2063      
2004 03  20.47457  13 29 22.45   -09 46 55.0         443843    662  Ck2063      
2005 05  04.34109  13 31 55.25   -09 42 17.6   23.2r 443843    568  C~1XPk      
2005 05  04.36902  13 31 55.14   -09 42 16.8   23.2r 443843    568  C~1XPk      
2005 05  04.41658  13 31 54.92   -09 42 15.4   23.6r 443843    568  C~1XPk      
2005 05  05.38616  13 31 50.83   -09 41 49.1   23.3r 443843    568  C~1XPk      
2013 03  07.54156  14 22 06.863  -12 03 25.60  23.3r 443843    568  C~1XPk      
2013 03  07.59862  14 22 06.711  -12 03 24.57  22.8r 443843    568  C~1XPk      
2013 03  13.41329  14 21 50.76   -12 01 35.1   23.3R 443843    695  C~0ucq      
2013 03  13.48923  14 21 50.54   -12 01 33.7         443843    695  C~0ucq      
2013 03  14.48443  14 21 47.56   -12 01 13.6         443843    695  C~0ucq      
2013 04  04.54263  14 20 30.561  -11 53 12.14  23.6r 443843    568  C~1XPk      
2013 04  07.40318  14 20 18.489  -11 52 00.03  23.7r 443843    568  C~1XPk      
2013 04  07.44689  14 20 18.288  -11 51 58.85  23.1r 443843    568  C~1XPk      
2013 04  08.43552  14 20 14.040  -11 51 33.52  23.0r 443843    568  C~1XPk      
2013 04  08.48075  14 20 13.844  -11 51 32.45  23.3r 443843    568  C~1XPk      
2013 04  09.38210  14 20 09.960  -11 51 09.54  23.4r 443843    568  C~1XPk      
2013 04  09.42533  14 20 09.766  -11 51 08.35  23.2r 443843    568  C~1XPk      
2013 04  09.46848  14 20 09.569  -11 51 07.30  23.5r 443843    568  C~1XPk      
2013 05  11.47017  14 17 44.429  -11 37 19.43  23.4r 443843    568  C~1XPk      
2013 05  12.47149  14 17 39.995  -11 36 54.83  23.3r 443843    568  C~1XPk      
2013 06  12.36752  14 15 43.131  -11 26 21.88  23.6r 443843    568  C~1XPk      
2013 06  12.41250  14 15 42.987  -11 26 21.04  23.3r 443843    568  C~1XPk      
2013 07  04.32702  14 14 56.537  -11 22 21.24  23.6r 443843    568  C~1XPk      
2013 07  06.33482  14 14 54.208  -11 22 09.69  23.4r 443843    568  C~1XPk      
2013 08  02.26251  14 14 57.373  -11 22 37.91  23.5r 443843    568  C~1XPk      
2014 02  01.65794  14 28 20.991  -12 21 33.56  23.6r 443843    568  C~1XPk      
2014 02  03.57011  14 28 22.116  -12 21 27.38  23.7r 443843    568  C~1XPk      
2014 02  04.65008  14 28 22.575  -12 21 23.23  24.3r 443843    568  C~1XPk      
2014 02  04.65538  14 28 22.578  -12 21 23.35  23.7r 443843    568  C~1XPk      
2014 02  24.57786  14 28 11.477  -12 18 30.19  22.5r 443843    568  C~1XPk      
2014 02  24.58174  14 28 11.470  -12 18 30.19  23.5r 443843    568  C~1XPk      
2014 02  25.54746  14 28 10.005  -12 18 17.31  23.9r 443843    568  C~1XPk      
2014 02  25.55135  14 28 09.999  -12 18 17.24  23.8r 443843    568  C~1XPk      
2014 02  27.65842  14 28 06.511  -12 17 48.15  23.6r 443843    568  C~1XPk      
2014 02  28.51276  14 28 04.993  -12 17 35.67  24.0r 443843    568  C~1XPk      
2014 03  28.45338  14 26 44.630  -12 08 35.23  23.6r 443843    568  C~1XPk      
2014 03  28.49795  14 26 44.458  -12 08 34.31  24.0r 443843    568  C~1XPk      
2014 04  05.42769  14 26 12.969  -12 05 23.89  23.3r 443843    568  C~1XPk      
2014 05  22.41340  14 22 43.429  -11 45 53.58  23.2r 443843    568  C~1XPk      
2014 05  28.38556  14 22 19.333  -11 43 46.09  23.4r 443843    568  C~1XPk      
2015 04  21.42104  14 30 49.189  -12 10 52.04  23.3r 443843    568  C~2KVA      
2015 04  21.45203  14 30 49.035  -12 10 51.71  23.1u 443843    568  C~2KVA      
2015 04  21.48737  14 30 48.870  -12 10 50.34  23.1r 443843    568  C~2KVA      
2017 05  29.35708  14 39 26.338  -12 19 02.16  23.4r 443843    568  C~2KVA      
2017 05  29.42223  14 39 26.069  -12 19 00.87  23.3r 443843    568  C~2KVA      

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    -0.17       0.00     0.82
  2   0.0002      0.00    -0.44       0.00    -0.02
  3   0.0930      0.00    -0.20       0.00    -0.18
  4   0.0931      0.00    -0.13       0.00    -0.07
  5   0.1551      0.00     0.23       0.00    -0.72
  6   0.1551      0.00    -0.16       0.00    -0.09
  7   0.1554      0.00     0.01       0.00    -0.53
  8   0.1554      0.00    -0.24       0.00    -0.20
  9   1.0342      0.00     0.13       0.00     0.47
 10   1.0343      0.00     0.23       0.00     0.30
 11   1.0372      0.00    -0.36       0.00     0.19
 12   1.0403      0.00     1.24       0.00    -0.65
 13   1.0405      0.00     0.79       0.00    -0.59
 14   1.3706      0.00     0.18       0.00     0.12
 15   1.3733      0.00    -0.38       0.00    -0.10
 16   1.3761      0.00     0.17       0.00    -0.31
 17   1.3788      0.00     0.01       0.00    -0.23
 18   2.9843      0.00    -0.18       0.00     0.55
 19   2.9845      0.00    -0.74       0.00     0.45
 20   4.1067      0.00     0.16       0.00     0.56
 21   4.1067      0.00     0.33       0.00     0.59
 22   4.1069      0.00     0.12       0.00     0.67
 23   4.1095      0.00     0.25       0.00     0.30
 24  11.9484      0.00    -0.16       0.00    -0.06
 25  11.9486      0.00    -0.20       0.00    -0.05
 26  11.9645      0.00     0.06       0.00    -0.03
 27  11.9647      0.00     0.22       0.00    -0.14
 28  11.9674      0.00     0.29       0.00     0.08
 29  12.0251      0.00     0.02       0.00    -0.02
 30  12.0329      0.00     0.11       0.00    -0.10
 31  12.0330      0.00    -0.04       0.00    -0.03
 32  12.0357      0.00    -0.08       0.00     0.09
 33  12.0359      0.00    -0.03       0.00     0.01
 34  12.0383      0.00     0.09       0.00    -0.17
 35  12.0384      0.00     0.05       0.00    -0.09
 36  12.0386      0.00    -0.04       0.00    -0.14
 37  12.1262      0.00     0.06       0.00    -0.06
 38  12.1289      0.00     0.06       0.00     0.01
 39  12.2135      0.00     0.07       0.00     0.06
 40  12.2136      0.00    -0.06       0.00     0.20
 41  12.2736      0.00    -0.04       0.00    -0.22
 42  12.2791      0.00     0.00       0.00    -0.13
 43  12.3529      0.00    -0.01       0.00    -0.02
 44  12.8550      0.00     0.10       0.00    -0.11
 45  12.8602      0.00     0.16       0.00    -0.03
 46  12.8632      0.00     0.06       0.00    -0.07
 47  12.8632      0.00     0.08       0.00    -0.22
 48  12.9177      0.00     0.14       0.00    -0.08
 49  12.9177      0.00     0.13       0.00    -0.13
 50  12.9204      0.00     0.09       0.00    -0.03
 51  12.9204      0.00     0.10       0.00    -0.01
 52  12.9261      0.00     0.15       0.00    -0.11
 53  12.9285      0.00     0.03       0.00     0.03
 54  13.0050      0.00     0.00       0.00     0.05
 55  13.0051      0.00     0.00       0.00    -0.07
 56  13.0268      0.00     0.22       0.00     0.19
 57  13.1555      0.00    -0.06       0.00    -0.05
 58  13.1718      0.00     0.03       0.00    -0.04
 59  14.0699      0.00     0.09       0.00     0.16
 60  14.0700      0.00    -0.06       0.00    -0.30
 61  14.0701      0.00    -0.08       0.00     0.17
 62  16.1752      0.00    -0.08       0.00    -0.03
 63  16.1753      0.00    -0.07       0.00    -0.02

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.

443843    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        46.160    46.160    46.160
ecceobj         0.113     0.113     0.113
incobj         10.671    10.671    10.671
qmin           40.303    40.298    40.309
qmax           52.998    53.003    52.966
amean          46.515    46.515    46.515
amin           46.125    46.121    46.119
amax           46.934    46.942    46.927
emean           0.117     0.117     0.117
emin            0.105     0.106     0.105
emax            0.130     0.130     0.130
imean          11.177    11.177    11.177
imin           10.808    10.809    10.809
imax           11.594    11.595    11.594
excite_mean     0.227     0.227     0.227
fracstop        1.000     1.000     1.000
cjmean          3.069     3.069     3.069

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       180.5     180.5     180.3
kozaiamp        180.0     180.0     179.9