Orbit Fit and Astrometric record for 138537

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: 138537    
# Created Sun Oct 22 01:36:34 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   94 observations of   94
# Arc:  15.14y
# First observation: 2000/07/29
#  Last observation: 2015/09/18
# Chi-squared of fit:   152.37 DOF:  182 RMS:  0.23
# Min/Max residuals:    -1.18    0.73
# Exact a, adot, b, bdot, g, gdot:
  1.635102E-05  2.597744E-02  2.304996E-07  1.843515E-03  2.504067E-02 -1.521572E-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
   -2.818503  -29.278483    0.423806   -0.045534   -0.921468  2451754.781433
# Heliocentric elements and errors
Epoch:              2451754.5000  =  2000/07/29
Mean Anomaly:          334.47259 +/-     0.000
Argument of Peri:      359.55152 +/-     0.000
Long of Asc Node:        4.43538 +/-     0.000
Inclination:             4.88013 +/-     0.000
Eccentricity:         0.14364173 +/-    0.0000
Semi-Major Axis:     46.69414573 +/-    0.0000
Time of Perihelion: 2460018.6135 +/-       0.0
Perihelion:          39.98691800 +/-    0.0000
Aphelion:            53.40137346 +/-    0.0000
Period (y)              319.0817 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           35.39492863 +/-    0.0000
Ecliptic Y          -20.32292391 +/-    0.0000
Ecliptic Z           -1.96370093 +/-    0.0000
Ecliptic XDOT         0.00124564 +/-    0.0000
Ecliptic YDOT         0.00255945 +/-    0.0000
Ecliptic ZDOT         0.00020965 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.86174451 +/-    0.0000
Geocenter to KBO     39.93511426 +/-    0.0000
# Hcoef:  6.03

The following table shows the complete astrometric record for 138537. 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 (138537) followed by the observatory code and reference code for the source of the astrometry.

2000 07  29.28069  22 15 13.09   -13 51 07.1   21.8R 138537    807  Cc0956      
2000 07  29.38920  22 15 12.62   -13 51 09.7         138537    807  Cc0956      
2000 08  01.31959  22 15 00.20   -13 52 20.7   21.7R 138537    807  Cc0956      
2000 08  01.39458  22 14 59.89   -13 52 22.6         138537    807  Cc0956      
2000 08  26.17752  22 13 05.88   -14 02 45.3   21.5R 138537    807  Cc0956      
2000 08  26.23134  22 13 05.61   -14 02 46.6         138537    807  Cc0956      
2000 08  27.12379  22 13 01.39   -14 03 08.7   21.2R 138537    807  Cc0956      
2000 08  27.19393  22 13 01.05   -14 03 10.6         138537    807  Cc0956      
2000 09  19.18236  22 11 17.12   -14 11 50.2   21.9R 138537    695  Cc2364      
2000 09  19.27848  22 11 16.71   -14 11 52.0         138537    695  Cc2364      
2000 11  26.07139  22 09 20.00   -14 17 04.0   21.6R 138537    695  Cc2364      
2000 11  27.07137  22 09 21.35   -14 16 51.5   22.1R 138537    695  Cc2364      
2000 11  27.13704  22 09 21.45   -14 16 50.6   22.1R 138537    695  Cc2364      
2001 05  19.55504  22 22 41.14   -12 59 20.6   22.2R 138537    568  Ce6494      
2001 05  20.53877  22 22 42.53   -12 59 15.8         138537    568  Ce6494      
2001 06  26.51347  22 22 30.32   -13 02 16.8         138537    568  Cd2337      
2001 06  26.54873  22 22 30.24   -13 02 17.3         138537    568  Cd2337      
2001 06  26.56619  22 22 30.22   -13 02 17.2         138537    568  Cd2337      
2001 06  27.52323  22 22 28.27   -13 02 30.9         138537    568  Cd2337      
2001 07  20.45494  22 21 22.236  -13 09 31.61        138537    568  Cl5584      
2001 07  21.47628  22 21 18.429  -13 09 54.12        138537    568  Cl5584      
2001 10  11.01355  22 15 32.71   -13 40 05.0   19.5  138537    304  Ce8850      
2001 10  11.06377  22 15 32.56   -13 40 05.4         138537    304  Ce8850      
2002 07  11.19122  22 27 25.09   -12 27 41.0   22.0R 138537    304  Cf9760      
2002 07  11.36389  22 27 24.57   -12 27 44.4         138537    304  Cf9760      
2003 07  06.59345  22 33 07.86   -11 47 13.7   22.2R 138537    568  Ci2628      
2003 07  07.55250  22 33 05.49   -11 47 29.5         138537    568  Ci2628      
2003 07  08.50539  22 33 03.04   -11 47 45.8         138537    568  Ci2628      
2003 07  09.40831  22 33 00.65   -11 48 01.3         138537    568  Ci2628      
2003 07  09.54945  22 33 00.30   -11 48 04.2         138537    568  Ci2628      
2005 09  30.14307  22 38 17.00   -11 01 29.5   21.9R 138537    688  Co3359      
2005 09  30.23305  22 38 16.60   -11 01 31.6         138537    688  Co3359      
2006 08  21.18903  22 46 49.63   -10 04 11.1   20.3R 138537    807  Cs2437      
2006 08  22.21960  22 46 44.93   -10 04 38.7         138537    807  Cs2437      
2006 08  23.14697  22 46 40.68   -10 05 03.7         138537    807  Cs2437      
2006 08  23.21392  22 46 40.38   -10 05 05.6         138537    807  Cs2437      
2006 09  25.18472  22 44 09.60   -10 19 15.2   21.8R 138537    688  Cs0756      
2006 09  25.28728  22 44 09.17   -10 19 17.2         138537    688  Cs0756      
2010 09  16.48549  23 06 53.679  -07 29 02.95  22.1w 138537    F51  C~1vps      
2010 09  16.49692  23 06 53.618  -07 29 03.39  22.1w 138537    F51  C~1vps      
2010 09  16.50841  23 06 53.561  -07 29 03.62  22.0w 138537    F51  C~1vps      
2010 09  16.51996  23 06 53.506  -07 29 03.99  22.1w 138537    F51  C~1vps      
2012 08  14.48910  23 20 19.613  -05 48 36.98  22.0w 138537    F51  C~1vps      
2012 08  14.51920  23 20 19.493  -05 48 37.94  22.3w 138537    F51  C~1vps      
2012 08  14.53426  23 20 19.413  -05 48 39.12  22.3w 138537    F51  C~1vps      
2013 09  01.43177  23 24 32.467  -05 13 17.87  22.1w 138537    F51  C~1vps      
2013 09  01.44524  23 24 32.401  -05 13 18.30  21.9w 138537    F51  C~1vps      
2013 09  01.45869  23 24 32.341  -05 13 18.63  21.9w 138537    F51  C~1vps      
2013 09  01.47212  23 24 32.278  -05 13 19.08  21.8w 138537    F51  C~1vps      
2013 10  21.33460  23 20 57.267  -05 34 35.15  21.7r 138537    F51  C~1vps      
2013 10  21.34670  23 20 57.240  -05 34 35.11  21.5i 138537    F51  C~1vps      
2013 10  21.35830  23 20 57.199  -05 34 35.26  21.6i 138537    F51  C~1vps      
2014 07  07.57845  23 32 57.337  -04 11 10.30  22.1w 138537    F51  C~1vps      
2014 07  07.58727  23 32 57.331  -04 11 10.35  22.3w 138537    F51  C~1vps      
2014 07  07.59606  23 32 57.320  -04 11 10.55  22.4w 138537    F51  C~1vps      
2014 07  07.60489  23 32 57.310  -04 11 10.46  22.4w 138537    F51  C~1vps      
2014 08  03.53663  23 31 56.553  -04 17 46.28  22.5w 138537    F51  C~1vps      
2014 08  03.54794  23 31 56.521  -04 17 46.36  22.3w 138537    F51  C~1vps      
2014 08  03.55924  23 31 56.473  -04 17 46.61  22.1w 138537    F51  C~1vps      
2014 08  03.57056  23 31 56.440  -04 17 46.79  22.3w 138537    F51  C~1vps      
2014 08  04.52753  23 31 53.334  -04 18 06.73  22.2w 138537    F51  C~1vps      
2014 08  04.53889  23 31 53.312  -04 18 06.99  22.2w 138537    F51  C~1vps      
2014 08  04.55023  23 31 53.257  -04 18 07.47  22.2w 138537    F51  C~1vps      
2014 08  04.56157  23 31 53.212  -04 18 07.46  22.4w 138537    F51  C~1vps      
2014 08  20.47857  23 30 53.917  -04 24 22.96  22.2w 138537    F51  C~1vps      
2014 08  20.49075  23 30 53.864  -04 24 23.17  22.1w 138537    F51  C~1vps      
2014 08  20.50291  23 30 53.813  -04 24 23.49  22.1w 138537    F51  C~1vps      
2014 08  20.51509  23 30 53.768  -04 24 23.93  22.1w 138537    F51  C~1vps      
2014 08  22.47579  23 30 45.625  -04 25 15.06  21.9w 138537    F51  C~1vps      
2014 08  22.48804  23 30 45.578  -04 25 15.29  22.1w 138537    F51  C~1vps      
2014 08  22.51260  23 30 45.474  -04 25 15.99  21.9w 138537    F51  C~1vps      
2014 08  23.48728  23 30 41.376  -04 25 41.70  22.4w 138537    F51  C~1vps      
2014 08  23.49886  23 30 41.298  -04 25 41.88  22.6w 138537    F51  C~1vps      
2014 08  23.51047  23 30 41.269  -04 25 42.40  22.2w 138537    F51  C~1vps      
2014 09  19.33142  23 28 39.937  -04 38 10.64  22.2w 138537    F51  C~1vps      
2014 09  19.34286  23 28 39.884  -04 38 10.97  22.1w 138537    F51  C~1vps      
2014 09  19.35429  23 28 39.820  -04 38 11.17  22.1w 138537    F51  C~1vps      
2014 09  19.36574  23 28 39.771  -04 38 11.61  22.1w 138537    F51  C~1vps      
2014 12  18.21139  23 25 14.886  -04 56 00.45  22.2w 138537    F51  C~1vps      
2014 12  18.22348  23 25 14.888  -04 55 59.93  22.3w 138537    F51  C~1vps      
2014 12  18.23556  23 25 14.925  -04 56 00.11  22.1w 138537    F51  C~1vps      
2014 12  18.24760  23 25 14.952  -04 55 59.87  22.2w 138537    F51  C~1vps      
2015 09  18.86507  23 34 11.72   -03 54 15.1   21.7R 138537    Z79  C~1ZIC      
2015 09  18.86911  23 34 11.70   -03 54 15.2   21.8R 138537    Z79  C~1ZIC      
2015 09  18.87314  23 34 11.68   -03 54 15.4   21.8R 138537    Z79  C~1ZIC      
2015 09  18.87736  23 34 11.65   -03 54 15.4   21.8R 138537    Z79  C~1ZIC      
2015 09  18.91822  23 34 11.47   -03 54 16.7   21.8R 138537    Z79  C~1ZIC      
2015 09  18.92225  23 34 11.45   -03 54 16.8   21.9R 138537    Z79  C~1ZIC      
2015 09  18.92628  23 34 11.43   -03 54 17.0   21.9R 138537    Z79  C~1ZIC      
2015 09  18.93031  23 34 11.41   -03 54 17.0   21.9R 138537    Z79  C~1ZIC      
2015 09  18.97650  23 34 11.19   -03 54 18.3   21.8R 138537    Z79  C~1ZIC      
2015 09  18.98053  23 34 11.17   -03 54 18.4   21.9R 138537    Z79  C~1ZIC      
2015 09  18.98456  23 34 11.15   -03 54 18.5   21.9R 138537    Z79  C~1ZIC      
2015 09  18.98863  23 34 11.14   -03 54 18.5   21.9R 138537    Z79  C~1ZIC      

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    -0.20       0.00    -1.18
  2   0.0003      0.00    -0.14       0.00     0.20
  3   0.0083      0.00    -0.17       0.00     0.26
  4   0.0085      0.00     0.09       0.00     0.19
  5   0.0764      0.00     0.10       0.00     0.02
  6   0.0765      0.00    -0.06       0.00     0.06
  7   0.0790      0.00    -0.10       0.00     0.06
  8   0.0792      0.00    -0.14       0.00    -0.11
  9   0.1421      0.00    -0.16       0.00    -0.43
 10   0.1424      0.00    -0.20       0.00    -0.33
 11   0.3280      0.00     0.41       0.00     0.18
 12   0.3307      0.00    -0.08       0.00    -0.39
 13   0.3309      0.00     0.08       0.00    -0.37
 14   0.8057      0.00     0.17       0.00     0.14
 15   0.8084      0.00     0.33       0.00     0.20
 16   0.9096      0.00     0.61       0.00    -0.16
 17   0.9097      0.00     0.49       0.00    -0.17
 18   0.9097      0.00     0.72       0.00     0.17
 19   0.9124      0.00     0.12       0.00    -0.21
 20   0.9752      0.00     0.73       0.00    -0.01
 21   0.9779      0.00    -0.15       0.00     0.09
 22   1.2012      0.00    -0.18       0.00    -0.04
 23   1.2013      0.00    -0.13       0.00     0.18
 24   1.9491      0.00     0.14       0.00     0.22
 25   1.9496      0.00     0.14       0.00     0.07
 26   2.9358      0.00    -0.69       0.00    -0.09
 27   2.9385      0.00    -0.32       0.00     0.02
 28   2.9411      0.00    -0.37       0.00    -0.11
 29   2.9435      0.00    -0.55       0.00     0.02
 30   2.9439      0.00     0.02       0.00    -0.39
 31   5.1714      0.00     0.48       0.00     0.57
 32   5.1717      0.00    -0.07       0.00     0.30
 33   6.0614      0.00     0.04       0.00     0.01
 34   6.0642      0.00     0.07       0.00     0.11
 35   6.0667      0.00    -0.07       0.00     0.08
 36   6.0669      0.00     0.12       0.00    -0.01
 37   6.1572      0.00    -0.23       0.00     0.08
 38   6.1574      0.00    -0.03       0.00     0.42
 39  10.1333      0.00     0.24       0.00     0.06
 40  10.1334      0.00     0.13       0.00    -0.07
 41  10.1334      0.00     0.08       0.00     0.01
 42  10.1334      0.00     0.06       0.00    -0.05
 43  12.0444      0.00     0.26       0.00     0.19
 44  12.0445      0.00     0.31       0.00    -0.01
 45  12.0445      0.00     0.04       0.00    -0.81
 46  13.0928      0.00    -0.02       0.00     0.13
 47  13.0929      0.00    -0.07       0.00     0.08
 48  13.0929      0.00    -0.04       0.00     0.13
 49  13.0929      0.00    -0.06       0.00     0.05
 50  13.2294      0.00    -0.03       0.00    -0.41
 51  13.2295      0.00     0.20       0.00    -0.14
 52  13.2295      0.00     0.19       0.00    -0.07
 53  13.9392      0.00     0.08       0.00    -0.03
 54  13.9392      0.00     0.16       0.00    -0.01
 55  13.9393      0.00     0.16       0.00    -0.13
 56  13.9393      0.00     0.18       0.00     0.03
 57  14.0130      0.00    -0.15       0.00    -0.13
 58  14.0131      0.00    -0.06       0.00     0.02
 59  14.0131      0.00    -0.22       0.00     0.00
 60  14.0131      0.00    -0.15       0.00     0.06
 61  14.0157      0.00    -0.04       0.00     0.04
 62  14.0158      0.00     0.20       0.00     0.02
 63  14.0158      0.00    -0.05       0.00    -0.22
 64  14.0158      0.00    -0.15       0.00     0.03
 65  14.0594      0.00     0.00       0.00     0.11
 66  14.0594      0.00    -0.02       0.00     0.21
 67  14.0595      0.00    -0.02       0.00     0.20
 68  14.0595      0.00     0.07       0.00     0.08
 69  14.0649      0.00     0.01       0.00     0.04
 70  14.0649      0.00     0.09       0.00     0.13
 71  14.0650      0.00     0.11       0.00     0.08
 72  14.0676      0.00     0.18       0.00     0.08
 73  14.0677      0.00    -0.24       0.00     0.21
 74  14.0677      0.00     0.07       0.00    -0.01
 75  14.1411      0.00     0.06       0.00     0.13
 76  14.1412      0.00     0.07       0.00     0.12
 77  14.1412      0.00    -0.08       0.00     0.24
 78  14.1412      0.00    -0.01       0.00     0.12
 79  14.3872      0.00    -0.01       0.00     0.05
 80  14.3872      0.00    -0.22       0.00     0.42
 81  14.3873      0.00     0.09       0.00     0.09
 82  14.3873      0.00     0.25       0.00     0.18
 83  15.1392      0.00     0.18       0.00    -0.03
 84  15.1392      0.00     0.16       0.00    -0.01
 85  15.1392      0.00     0.14       0.00    -0.10
 86  15.1392      0.00    -0.01       0.00     0.02
 87  15.1393      0.00     0.17       0.00    -0.12
 88  15.1393      0.00     0.15       0.00    -0.11
 89  15.1393      0.00     0.14       0.00    -0.19
 90  15.1394      0.00     0.12       0.00    -0.08
 91  15.1395      0.00     0.08       0.00    -0.07
 92  15.1395      0.00     0.07       0.00    -0.05
 93  15.1395      0.00     0.05       0.00    -0.04
 94  15.1395      0.00     0.19       0.00     0.08

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.

138537    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        46.794    46.794    46.794
ecceobj         0.145     0.145     0.145
incobj          4.877     4.877     4.877
qmin           39.264    39.308    39.265
qmax           54.214    54.236    54.215
amean          46.566    46.565    46.570
amin           46.169    46.175    46.164
amax           47.026    47.026    47.026
emean           0.140     0.140     0.140
emin            0.127     0.126     0.127
emax            0.154     0.154     0.154
imean           4.996     5.001     5.000
imin            4.463     4.468     4.467
imax            5.505     5.505     5.505
excite_mean     0.165     0.165     0.165
fracstop        1.000     1.000     1.000
cjmean          3.100     3.100     3.100

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       176.5     176.2     176.4
kozaiamp        180.0     180.0     180.0