Orbit Fit and Astrometric record for 150642

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: 150642    
# Created Fri Dec 15 02:36:36 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting  103 observations of  104
# Arc:  14.11y
# First observation: 2001/02/03
#  Last observation: 2015/03/15
# Chi-squared of fit:   583.83 DOF:  200 RMS:  0.42
# Min/Max residuals:    -1.11    1.93
# Exact a, adot, b, bdot, g, gdot:
  1.686301E-05  2.469053E-02  3.562293E-06  4.443225E-03  2.474841E-02 -2.153546E-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
   -0.548721  133.210342   -0.029459   -0.009577   -0.984726  2451943.820983
# Heliocentric elements and errors
Epoch:              2451944.5000  =  2001/02/04
Mean Anomaly:          321.72013 +/-     0.000
Argument of Peri:       44.83715 +/-     0.000
Long of Asc Node:      136.21772 +/-     0.000
Inclination:            10.20856 +/-     0.000
Eccentricity:         0.11971383 +/-    0.0000
Semi-Major Axis:     45.36692266 +/-    0.0000
Time of Perihelion: 2463812.4419 +/-       0.0
Perihelion:          39.93587449 +/-    0.0000
Aphelion:            50.79797083 +/-    0.0000
Period (y)              305.5746 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -28.35615712 +/-    0.0000
Ecliptic Y           30.15098907 +/-    0.0000
Ecliptic Z           -0.38682628 +/-    0.0000
Ecliptic XDOT        -0.00183918 +/-    0.0000
Ecliptic YDOT        -0.00203685 +/-    0.0000
Ecliptic ZDOT         0.00049399 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.39212269 +/-    0.0000
Geocenter to KBO     40.40672744 +/-    0.0000
# Hcoef:  5.74

The following table shows the complete astrometric record for 150642. 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 (150642) followed by the observatory code and reference code for the source of the astrometry.

2001 02  03.32024  09 02 03.27   +16 19 37.0         150642    568  Cc6947      
2001 02  03.34231  09 02 03.16   +16 19 37.6         150642    568  Cc6947      
2001 02  04.41270  09 01 57.83   +16 20 03.1   21.4  150642    568  Cc6947      
2001 02  04.43389  09 01 57.71   +16 20 03.6         150642    568  Cc6947      
2001 02  20.30002  09 00 41.09   +16 26 12.7   21.6R 150642    568  Cc6947      
2001 02  20.51980  09 00 40.04   +16 26 17.6   21.7R 150642    568  Cc6947      
2001 02  21.34075  09 00 36.26   +16 26 35.9         150642    568  Cc6947      
2001 03  11.06678  08 59 22.12   +16 32 42.8   21.4  150642    304  Ce9333      
2001 03  11.09326  08 59 22.01   +16 32 43.4         150642    304  Ce9333      
2001 03  24.18356  08 58 39.53   +16 36 22.2   21.5R 150642    695  Cc7994      
2001 03  24.29420  08 58 39.23   +16 36 23.8         150642    695  Cc7994      
2001 03  28.17874  08 58 29.23   +16 37 18.3   21.5R 150642    688  Cc7994      
2001 03  28.25734  08 58 29.05   +16 37 19.0         150642    688  Cc7994      
2001 12  12.19146  09 11 38.29   +15 51 42.6         150642    950  Ce3559      
2001 12  12.23185  09 11 38.20   +15 51 43.1         150642    950  Ce3559      
2001 12  13.14961  09 11 35.98   +15 51 54.8         150642    950  Ce3559      
2001 12  13.17259  09 11 35.93   +15 51 55.3         150642    950  Ce3559      
2002 11  30.54015  09 17 54.15   +15 38 51.2   21.7R 150642    568  Cg7751      
2002 11  30.61364  09 17 54.06   +15 38 51.8         150642    568  Cg7751      
2002 12  01.54916  09 17 52.98   +15 38 59.6         150642    568  Cg7751      
2004 02  17.05691  09 18 58.13   +15 53 34.5   21.1R 150642    493  Cs6769      
2004 02  17.06384  09 18 58.10   +15 53 34.6   21.1R 150642    493  Cs6769      
2004 02  17.14602  09 18 57.70   +15 53 36.8   21.4R 150642    493  Cs6769      
2004 02  17.15295  09 18 57.67   +15 53 37.2   21.4R 150642    493  Cs6769      
2004 02  17.86280  09 18 54.24   +15 53 54.7   21.4R 150642    493  Cs6769      
2004 02  17.95831  09 18 53.79   +15 53 56.9   21.1R 150642    493  Cs6769      
2004 02  17.99598  09 18 53.60   +15 53 57.9   21.2R 150642    493  Cs6769      
2004 02  18.03144  09 18 53.43   +15 53 58.7   21.1R 150642    493  Cs6769      
2004 02  18.08632  09 18 53.16   +15 54 00.1   21.3R 150642    493  Cs6769      
2004 02  18.12630  09 18 52.97   +15 54 01.0   21.2R 150642    493  Cs6769      
2004 02  19.01233  09 18 48.701  +15 54 23.06  21.7V 150642    493  Cz7588      
2004 02  19.01522  09 18 48.70   +15 54 23.0   21.4R 150642    493  Cs6769      
2004 02  19.03456  09 18 48.578  +15 54 23.50  21.7V 150642    493  Cz7588      
2004 02  19.03745  09 18 48.59   +15 54 23.5   21.1R 150642    493  Cs6769      
2004 02  19.08220  09 18 48.365  +15 54 24.95  21.5V 150642    493  Cz7588      
2004 02  19.08509  09 18 48.37   +15 54 24.8   21.2R 150642    493  Cs6769      
2004 02  19.10457  09 18 48.449  +15 54 26.70  21.8V 150642    493  Cz7588      
2004 02  19.10747  09 18 48.26   +15 54 25.3   21.3R 150642    493  Cs6769      
2005 02  10.32004  09 25 28.44   +15 39 17.9   22.3g 150642    568  Cn3238      
2005 02  10.40020  09 25 28.04   +15 39 20.0   22.3g 150642    568  Cn3238      
2005 02  10.44045  09 25 27.85   +15 39 21.0   22.2g 150642    568  Cn3238      
2005 03  12.196655 09 23 12.09   +15 51 11.7   21.9V 150642    645  C~1Pyx      
2005 03  12.197884 09 23 12.09   +15 51 11.7   22.1V 150642    645  C~1Pyx      
2005 03  12.199972 09 23 12.08   +15 51 11.8   22.6V 150642    645  C~1Pyx      
2005 12  06.460652 09 35 31.80   +15 03 37.7   22.1V 150642    645  C~1Pyx      
2005 12  06.461481 09 35 31.80   +15 03 37.7   21.5V 150642    645  C~1Pyx      
2005 12  06.463969 09 35 31.80   +15 03 37.8   22.5V 150642    645  C~1Pyx      
2006 01  18.34476  09 33 20.55   +15 16 50.6   21.4R 150642    250  S~06He      
2006 01  18.34916  09 33 20.52   +15 16 50.8         150642    250  S~06He      
2006 01  18.35356  09 33 20.50   +15 16 50.9         150642    250  S~06He      
2006 01  18.35796  09 33 20.48   +15 16 51.0         150642    250  S~06He      
2007 02  18.35699  09 36 55.10   +15 17 12.2   21.6R 150642    568  Cu1424      
2007 02  18.37223  09 36 55.02   +15 17 12.7         150642    568  Cu1424      
2007 02  18.38836  09 36 54.93   +15 17 12.9         150642    568  Cu1424      
2007 02  20.39815  09 36 45.16   +15 18 06.7   21.5R 150642    568  Cu1424      
2007 02  20.41900  09 36 45.08   +15 18 07.0         150642    568  Cu1424      
2007 02  20.43657  09 36 44.98   +15 18 07.7   21.6R 150642    568  Cu1424      
2007 02  23.162801 09 36 31.90   +15 19 18.3   22.2  150642    H55  Cu1424      
2007 02  23.218287 09 36 31.74   +15 19 20.0   22.4  150642    H55  Cu1424      
2007 02  23.250744 09 36 31.56   +15 19 20.4   22.1  150642    H55  Cu1424      
2011 01  30.53875  10 02 34.918  +14 10 01.81  21.7w 150642    F51  C~1vqp      
2011 01  30.55397  10 02 34.855  +14 10 02.25  21.9w 150642    F51  C~1vqp      
2011 01  30.57131  10 02 34.769  +14 10 02.74  22.0w 150642    F51  C~1vqp      
2011 01  30.58642  10 02 34.707  +14 10 03.13  22.1w 150642    F51  C~1vqp      
2011 03  10.24042  09 59 31.66   +14 28 04.7   21.5R 150642    688  C~0Tyn      
2011 03  10.29007  09 59 31.44   +14 28 06.1         150642    688  C~0Tyn      
2011 05  29.26296  09 57 21.109  +14 39 35.46  22.2w 150642    F51  C~1vqp      
2011 05  29.26772  09 57 21.119  +14 39 35.67  22.1w 150642    F51  C~1vqp      
2011 05  29.27252  09 57 21.133  +14 39 35.55  22.0w 150642    F51  C~1vqp      
2011 05  29.27730  09 57 21.143  +14 39 35.44  22.0w 150642    F51  C~1vqp      
2012 02  04.52659  10 08 16.383  +13 56 02.30  21.7i 150642    F51  C~1vqp      
2012 02  04.59310  10 08 16.080  +13 56 04.14  21.4r 150642    F51  C~1vqp      
2012 02  04.60397  10 08 16.013  +13 56 04.85  21.4r 150642    F51  C~1vqp      
2014 11  27.57182  10 28 54.820  +12 42 03.35  22.3w 150642    F51  C~1vqp      
2014 11  27.58477  10 28 54.800  +12 42 03.33  22.3w 150642    F51  C~1vqp      
2014 11  27.59777  10 28 54.845  +12 42 03.18  22.1w 150642    F51  C~1vqp      
2014 11  29.55663  10 28 56.553  +12 42 08.73  22.2w 150642    F51  C~1vqp      
2014 11  29.56970  10 28 56.521  +12 42 08.52  22.5w 150642    F51  C~1vqp      
2014 11  29.58270  10 28 56.549  +12 42 08.61  22.4w 150642    F51  C~1vqp      
2014 11  29.59572  10 28 56.558  +12 42 08.59  22.2w 150642    F51  C~1vqp      
2015 01  20.43121  10 27 31.122  +12 56 20.74  22.0w 150642    F51  C~1vqp      
2015 01  20.44980  10 27 31.049  +12 56 21.47  22.2w 150642    F51  C~1vqp      
2015 01  20.46322  10 27 30.992  +12 56 21.65  22.1w 150642    F51  C~1vqp      
2015 01  20.47666  10 27 30.950  +12 56 21.99  22.3w 150642    F51  C~1vqp      
2015 01  22.44862  10 27 23.471  +12 57 16.02  22.1w 150642    F51  C@0618      
2015 01  22.46221  10 27 23.422  +12 57 16.39  22.2w 150642    F51  C~1vqp      
2015 01  22.47582  10 27 23.374  +12 57 16.74  22.0w 150642    F51  C@0618      
2015 01  22.48954  10 27 23.316  +12 57 17.17  22.0w 150642    F51  C@0618      
2015 02  16.33532  10 25 34.223  +13 09 33.76  22.0w 150642    F51  C~1vqp      
2015 02  16.34786  10 25 34.174  +13 09 34.13  22.1w 150642    F51  C~1vqp      
2015 02  16.36036  10 25 34.110  +13 09 34.44  22.0w 150642    F51  C~1vqp      
2015 02  16.37294  10 25 34.041  +13 09 34.87  21.6w 150642    F51  C~1vqp      
2015 02  17.38698  10 25 29.226  +13 10 05.93  21.9w 150642    F51  C~1vqq      
2015 02  17.39978  10 25 29.155  +13 10 06.13  21.8w 150642    F51  C~1vqq      
2015 02  17.41262  10 25 29.094  +13 10 06.56  22.1w 150642    F51  C~1vqq      
2015 02  17.42551  10 25 29.026  +13 10 07.00  21.8w 150642    F51  C~1vqq      
2015 03  14.31378  10 23 31.526  +13 22 09.84  21.9w 150642    F51  C~1vqq      
2015 03  14.32640  10 23 31.479  +13 22 10.27  21.9w 150642    F51  C~1vqq      
2015 03  14.33904  10 23 31.414  +13 22 10.69  22.0w 150642    F51  C~1vqq      
2015 03  14.35180  10 23 31.356  +13 22 11.00  22.0w 150642    F51  C~1vqq      
2015 03  15.30511  10 23 27.114  +13 22 35.92  21.9w 150642    F51  C~1vqq      
2015 03  15.31790  10 23 27.054  +13 22 36.41  21.9w 150642    F51  C~1vqq      
2015 03  15.33049  10 23 26.990  +13 22 36.73  21.8w 150642    F51  C~1vqq      
2015 03  15.34314  10 23 26.942  +13 22 37.16  21.9w 150642    F51  C~1vqq      

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    -0.19       0.00     1.10
  2   0.0001      0.00    -0.20       0.00    -0.03
  3   0.0030      0.00    -0.58       0.00     0.07
  4   0.0030      0.00    -0.78       0.00     0.06
  5   0.0465      0.00    -0.18       0.00    -0.17
  6   0.0471      0.00    -0.37       0.00    -0.20
  7   0.0493      0.00    -0.43       0.00    -0.32
  8   0.0979      0.00     1.67       0.00    -0.02
  9   0.0979      0.00     1.52       0.00     0.08
 10   0.1338      0.00     0.07       0.00    -0.05
 11   0.1341      0.00     0.24       0.00    -0.06
 12   0.1447      0.00     0.22       0.00     0.02
 13   0.1449      0.00     0.45       0.00    -0.32
 14   0.8539      0.00    -0.65       0.00    -0.11
 15   0.8540      0.00    -0.50       0.00    -0.13
 16   0.8565      0.00    -0.32       0.00    -0.41
 17   0.8565      0.00    -0.19       0.00    -0.22
 18   1.8213      0.00    -0.31       0.00    -0.49
 19   1.8215      0.00    -0.27       0.00    -0.48
 20   1.8240      0.00     0.60       0.00    -0.25
 21   3.0356      0.00     0.02       0.00    -0.03
 22   3.0356      0.00     0.08       0.00    -0.10
 23   3.0358      0.00     0.10       0.00     0.08
 24   3.0358      0.00     0.16       0.00     0.31
 25   3.0378      0.00    -0.19       0.00     0.21
 26   3.0380      0.00     0.06       0.00     0.03
 27   3.0381      0.00    -0.03       0.00     0.10
 28   3.0382      0.00     0.02       0.00     0.03
 29   3.0384      0.00    -0.01       0.00     0.08
 30   3.0385      0.00     0.06       0.00    -0.00
 31   3.0409      0.00    -0.23       0.00     0.19
 32   3.0409      0.00    -0.04       0.00     0.06
 33   3.0410      0.00    -0.45       0.00     0.08
 34   3.0410      0.00    -0.06       0.00     0.01
 35   3.0411      0.00    -0.18       0.00     0.37
 36   3.0411      0.00     0.11       0.00     0.15
 37   3.0412      0.00 (   2.71)      0.00 (   1.57)
 38   3.0412      0.00     0.09       0.00     0.10
 39   4.0192      0.00    -0.34       0.00    -0.42
 40   4.0194      0.00    -0.34       0.00    -0.40
 41   4.0195      0.00    -0.17       0.00    -0.45
 42   4.1010      0.00     0.21       0.00    -0.32
 43   4.1010      0.00     0.28       0.00    -0.35
 44   4.1010      0.00     0.26       0.00    -0.29
 45   4.8382      0.00     0.24       0.00    -0.17
 46   4.8382      0.00     0.26       0.00    -0.18
 47   4.8382      0.00     0.31       0.00    -0.10
 48   4.9556      0.00     1.93       0.00     0.84
 49   4.9556      0.00     1.78       0.00     0.93
 50   4.9556      0.00     1.77       0.00     0.92
 51   4.9556      0.00     1.76       0.00     0.91
 52   6.0398      0.00    -0.14       0.00    -0.19
 53   6.0398      0.00    -0.21       0.00    -0.10
 54   6.0399      0.00    -0.37       0.00    -0.33
 55   6.0454      0.00    -1.04       0.00     0.53
 56   6.0454      0.00    -0.70       0.00     0.28
 57   6.0455      0.00    -0.91       0.00     0.52
 58   6.0530      0.00    -1.11       0.00     0.21
 59   6.0531      0.00     0.51       0.00     0.47
 60   6.0532      0.00     0.17       0.00     0.03
 61   9.9883      0.00    -0.03       0.00    -0.28
 62   9.9883      0.00     0.08       0.00    -0.27
 63   9.9884      0.00    -0.01       0.00    -0.27
 64   9.9884      0.00     0.11       0.00    -0.30
 65  10.0942      0.00    -0.14       0.00     0.03
 66  10.0944      0.00    -0.07       0.00     0.18
 67  10.3133      0.00     0.02       0.00    -0.36
 68  10.3133      0.00     0.04       0.00    -0.10
 69  10.3134      0.00     0.11       0.00    -0.17
 70  10.3134      0.00     0.13       0.00    -0.22
 71  11.0012      0.00    -0.10       0.00    -0.08
 72  11.0014      0.00     0.05       0.00    -0.16
 73  11.0015      0.00    -0.19       0.00     0.24
 74  13.8131      0.00    -0.04       0.00     0.19
 75  13.8132      0.00    -0.51       0.00     0.14
 76  13.8132      0.00    -0.01       0.00    -0.04
 77  13.8186      0.00     0.45       0.00     0.36
 78  13.8186      0.00    -0.17       0.00     0.11
 79  13.8187      0.00     0.12       0.00     0.16
 80  13.8187      0.00     0.12       0.00     0.09
 81  13.9606      0.00     0.08       0.00    -0.14
 82  13.9607      0.00     0.05       0.00     0.09
 83  13.9607      0.00    -0.04       0.00    -0.10
 84  13.9607      0.00     0.10       0.00    -0.13
 85  13.9661      0.00     0.02       0.00    -0.06
 86  13.9662      0.00     0.08       0.00    -0.07
 87  13.9662      0.00     0.17       0.00    -0.09
 88  13.9662      0.00     0.11       0.00    -0.04
 89  14.0343      0.00     0.03       0.00    -0.03
 90  14.0343      0.00     0.20       0.00    -0.05
 91  14.0343      0.00     0.14       0.00    -0.12
 92  14.0344      0.00     0.02       0.00    -0.08
 93  14.0371      0.00     0.25       0.00    -0.01
 94  14.0372      0.00     0.11       0.00    -0.20
 95  14.0372      0.00     0.13       0.00    -0.16
 96  14.0372      0.00     0.05       0.00    -0.12
 97  14.1054      0.00    -0.20       0.00    -0.15
 98  14.1054      0.00    -0.04       0.00    -0.05
 99  14.1055      0.00    -0.14       0.00     0.03
100  14.1055      0.00    -0.14       0.00     0.00
101  14.1081      0.00     0.07       0.00    -0.21
102  14.1081      0.00     0.03       0.00    -0.05
103  14.1082      0.00    -0.07       0.00    -0.06
104  14.1082      0.00     0.07       0.00     0.03

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.

150642    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        45.183    45.182    45.183
ecceobj         0.117     0.117     0.117
incobj         10.224    10.224    10.224
qmin           39.210    39.202    39.223
qmax           51.586    51.614    51.563
amean          45.249    45.248    45.249
amin           44.882    44.879    44.887
amax           45.674    45.658    45.658
emean           0.117     0.117     0.117
emin            0.104     0.104     0.104
emax            0.130     0.131     0.130
imean           9.013     9.013     9.013
imin            8.528     8.532     8.527
imax            9.564     9.564     9.562
excite_mean     0.195     0.195     0.195
fracstop        1.000     1.000     1.000
cjmean          3.070     3.070     3.070

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       177.8     177.9     178.0
kozaiamp        180.0     180.0     180.0