Orbit Fit and Astrometric record for 14YY49

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: 14YY49    
# Created Sat Jan 19 02:10:16 2019
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting  102 observations of  102
# Arc:  14.16y
# First observation: 2004/09/17
#  Last observation: 2018/11/14
# Chi-squared of fit:    70.13 DOF:  198 RMS:  0.15
# Min/Max residuals:    -0.49    0.74
# Exact a, adot, b, bdot, g, gdot:
  3.047422E-05  1.631195E-01 -9.568891E-06 -5.624148E-02  8.180330E-02 -4.218691E-02
# Covariance matrix:
  3.8187E-11 -1.1393E-08 -1.4170E-11  5.1703E-09  1.9375E-13 -8.0233E-09
 -1.1393E-08  1.3577E-05  4.6561E-09 -6.0376E-06 -6.4374E-11  9.2845E-06
 -1.4170E-11  4.6561E-09  5.6908E-12 -2.1417E-09 -7.2834E-14  3.2817E-09
  5.1703E-09 -6.0376E-06 -2.1417E-09  3.0098E-06  2.9268E-11 -4.2127E-06
  1.9375E-13 -6.4374E-11 -7.2834E-14  2.9268E-11  9.9634E-16 -4.5366E-11
 -8.0233E-09  9.2845E-06  3.2817E-09 -4.2127E-06 -4.5366E-11  6.4784E-06
#      lat0       lon0       xBary       yBary       zBary        JD0
    7.670708  -12.024366   -0.117280    0.133876   -0.993453  2453265.809953
# Heliocentric elements and errors
Epoch:              2453266.5000  =  2004/09/18
Mean Anomaly:          352.75289 +/-     0.001
Argument of Peri:      194.38180 +/-     0.000
Long of Asc Node:      188.01005 +/-     0.000
Inclination:            20.42392 +/-     0.000
Eccentricity:         0.60387592 +/-    0.0000
Semi-Major Axis:     31.07589403 +/-    0.0000
Time of Perihelion: 2454540.2856 +/-       0.1
Perihelion:          12.30991006 +/-    0.0000
Aphelion:            49.84187801 +/-    0.0000
Period (y)              173.2382 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           12.85003043 +/-    0.0000
Ecliptic Y           -2.61661081 +/-    0.0000
Ecliptic Z            1.63161902 +/-    0.0000
Ecliptic XDOT         0.00001281 +/-    0.0000
Ecliptic YDOT         0.00557173 +/-    0.0000
Ecliptic ZDOT        -0.00205385 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   13.21493841 +/-    0.0000
Geocenter to KBO     12.22458284 +/-    0.0000
# Hcoef: 10.19

The following table shows the complete astrometric record for 14YY49. 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 (14YY49) followed by the observatory code and reference code for the source of the astrometry.

2004 09  17.30921  23 03 48.70   +02 18 42.7   21.2V 14YY49    691  C~1vXy      
2004 09  17.33842  23 03 48.36   +02 18 39.7   21.2V 14YY49    691  C~1vXy      
2004 09  17.36482  23 03 48.04   +02 18 36.9   20.9V 14YY49    691  C~1vXy      
2006 09  15.30544  00 28 56.80   +03 38 48.5         14YY49    691  C~1vXy      
2006 09  15.32275  00 28 56.63   +03 38 46.6         14YY49    691  C~1vXy      
2006 09  15.34005  00 28 56.43   +03 38 45.0         14YY49    691  C~1vXy      
2007 10  09.32119  01 09 48.49   +03 23 26.9   20.9V 14YY49    G96  C~1vXy      
2007 10  09.32738  01 09 48.38   +03 23 26.2   20.9V 14YY49    G96  C~1vXy      
2007 10  09.33356  01 09 48.34   +03 23 25.6   21.2V 14YY49    G96  C~1vXy      
2007 10  09.33980  01 09 48.27   +03 23 24.7   20.8V 14YY49    G96  C~1vXy      
2008 09  23.37707  01 58 21.36   +04 14 04.3   21.2V 14YY49    G96  C~1vXy      
2008 09  23.38544  01 58 21.28   +04 14 03.1   21.1V 14YY49    G96  C~1vXy      
2008 09  23.39385  01 58 21.21   +04 14 02.3   21.1V 14YY49    G96  C~1vXy      
2008 09  23.40230  01 58 21.14   +04 14 01.3   21.3V 14YY49    G96  C~1vXy      
2008 10  08.432500 01 55 43.86   +03 45 59.1   21.1V 14YY49    645  C~1vXy      
2008 10  08.433329 01 55 43.84   +03 45 58.9   20.8V 14YY49    645  C~1vXy      
2008 10  08.435817 01 55 43.80   +03 45 58.5   21.7V 14YY49    645  C~1vXy      
2009 09  27.40282  02 42 25.02   +04 19 05.3   21.2V 14YY49    G96  C~1vXy      
2009 09  27.40981  02 42 24.98   +04 19 04.4   21.2V 14YY49    G96  C~1vXy      
2009 09  27.41690  02 42 24.91   +04 19 03.8   21.3V 14YY49    G96  C~1vXy      
2009 09  27.42403  02 42 24.84   +04 19 02.9   21.4V 14YY49    G96  C~1vXy      
2010 08  25.56238  03 25 28.409  +05 11 48.09  22.0G 14YY49    F51  C~2r7a      
2010 09  02.62245  03 25 48.002  +05 01 01.25  21.5G 14YY49    F51  C~2r7a      
2010 09  02.63434  03 25 48.015  +05 00 59.98  21.9G 14YY49    F51  C~2r7a      
2010 10  31.52117  03 19 30.103  +03 25 41.80  21.1G 14YY49    F51  C~2r7a      
2010 10  31.53304  03 19 29.956  +03 25 40.77  21.0G 14YY49    F51  C~2r7a      
2010 11  07.37212  03 18 06.469  +03 15 47.43  20.2G 14YY49    F51  C~2r7a      
2010 11  07.38323  03 18 06.323  +03 15 46.43  20.6G 14YY49    F51  C~2r7a      
2010 11  10.44412  03 17 28.143  +03 11 38.14  21.1w 14YY49    F51  C~1vXy      
2010 11  10.45752  03 17 27.974  +03 11 37.07  21.1w 14YY49    F51  C~1vXy      
2010 11  10.47195  03 17 27.791  +03 11 35.90  21.1w 14YY49    F51  C~1vXy      
2010 11  10.48741  03 17 27.592  +03 11 34.67  21.2w 14YY49    F51  C~1vXy      
2010 11  16.49679  03 16 12.375  +03 04 03.18  21.4G 14YY49    F51  C~2r7a      
2010 11  16.50812  03 16 12.235  +03 04 02.39  21.2G 14YY49    F51  C~2r7a      
2010 11  30.36720  03 13 24.231  +02 50 08.06  21.4G 14YY49    F51  C~2r7a      
2010 11  30.38139  03 13 24.047  +02 50 07.09  21.0G 14YY49    F51  C~2r7a      
2010 11  30.39697  03 13 23.872  +02 50 06.52  21.2G 14YY49    F51  C~2r7a      
2010 11  30.41169  03 13 23.699  +02 50 05.73  21.4G 14YY49    F51  C~2r7a      
2011 10  21.55402  04 01 30.156  +03 38 33.24  21.6G 14YY49    F51  C~2r7a      
2011 10  21.56578  04 01 30.037  +03 38 32.04  21.2G 14YY49    F51  C~2r7a      
2011 10  26.54399  04 00 41.703  +03 30 59.57  21.5G 14YY49    F51  C~2r7a      
2011 10  26.55668  04 00 41.593  +03 30 58.42  21.2G 14YY49    F51  C~2r7a      
2011 10  26.57041  04 00 41.433  +03 30 57.35  21.0G 14YY49    F51  C~2r7a      
2011 10  26.58245  04 00 41.306  +03 30 56.22  21.1G 14YY49    F51  C~2r7a      
2011 11  06.52236  03 58 41.246  +03 15 31.17  21.5G 14YY49    F51  C~2r7a      
2011 11  06.53545  03 58 41.080  +03 15 30.32  21.8G 14YY49    F51  C~2r7a      
2011 11  25.47649  03 54 48.164  +02 54 12.45  21.3G 14YY49    F51  C~2r7a      
2011 11  25.49104  03 54 47.979  +02 54 11.63  21.2G 14YY49    F51  C~2r7a      
2012 12  09.34967  04 28 59.011  +02 38 07.81  21.7w 14YY49    F51  C~1vXy      
2012 12  09.38182  04 28 58.616  +02 38 06.90  21.5w 14YY49    F51  C~1vXy      
2012 12  09.39673  04 28 58.443  +02 38 06.37  21.6w 14YY49    F51  C~1vXy      
2012 12  30.43300  04 25 04.055  +02 35 00.28  21.9G 14YY49    F51  C~2r7a      
2012 12  31.34035  04 24 55.389  +02 35 09.52  21.9G 14YY49    F51  C~2r7a      
2013 12  10.37061  05 02 41.592  +02 27 31.10  22.0G 14YY49    F51  C~2r7a      
2013 12  12.44303  05 02 16.304  +02 26 46.19  21.8G 14YY49    F51  C~2r7a      
2013 12  29.39782  04 58 58.711  +02 25 03.73  22.0G 14YY49    F51  C~2r7a      
2013 12  29.41160  04 58 58.560  +02 25 03.86  21.6G 14YY49    F51  C~2r7a      
2013 12  29.42543  04 58 58.410  +02 25 03.98  21.6G 14YY49    F51  C~2r7a      
2013 12  29.43937  04 58 58.252  +02 25 04.07  21.8G 14YY49    F51  C~2r7a      
2014 01  21.24874  04 55 33.153  +02 34 49.24  21.9w 14YY49    F51  C~1vXy      
2014 01  21.26163  04 55 33.054  +02 34 49.77  21.8w 14YY49    F51  C~1vXy      
2014 01  21.27460  04 55 32.971  +02 34 50.50  22.0w 14YY49    F51  C~1vXy      
2014 01  21.28767  04 55 32.876  +02 34 50.96  21.8w 14YY49    F51  C~1vXy      
2014 11  04.56278  05 39 24.571  +02 42 07.64  22.1G 14YY49    F51  C~2r7a      
2014 12  16.40746  05 32 09.060  +02 12 41.76  22.0w 14YY49    F51  C~1vXy      
2014 12  16.41871  05 32 08.946  +02 12 41.47  21.6w 14YY49    F51  C~1vXy      
2014 12  16.43000  05 32 08.805  +02 12 41.53  21.8w 14YY49    F51  C~1vXy      
2014 12  16.44124  05 32 08.664  +02 12 41.40  21.8w 14YY49    F51  C~1vXy      
2015 01  15.37647  05 26 41.053  +02 18 13.03  22.1w 14YY49    F51  C~1vXy      
2015 01  15.38882  05 26 40.939  +02 18 13.46  21.8w 14YY49    F51  C~1vXy      
2015 01  15.40120  05 26 40.820  +02 18 13.89  22.0w 14YY49    F51  C~1vXy      
2015 01  15.41360  05 26 40.701  +02 18 14.36  21.9w 14YY49    F51  C~1vXy      
2015 01  17.36144  05 26 23.160  +02 19 21.98  22.2w 14YY49    F51  C~1vXy      
2015 01  17.37527  05 26 23.028  +02 19 22.54  22.2w 14YY49    F51  C~1vXy      
2015 01  17.38908  05 26 22.913  +02 19 22.89  22.1w 14YY49    F51  C~1vXy      
2015 01  17.40308  05 26 22.778  +02 19 23.57  22.2w 14YY49    F51  C~1vXy      
2015 02  12.27247  05 23 43.589  +02 41 29.61  22.3G 14YY49    F51  C~2r7a      
2015 02  13.24439  05 23 40.625  +02 42 32.00  22.7G 14YY49    F51  C~2r7a      
2015 12  03.46389  06 02 10.924  +02 02 31.66  21.8G 14YY49    F51  C~2r7a      
2015 12  03.47667  06 02 10.773  +02 02 31.18  22.2G 14YY49    F51  C~2r7a      
2015 12  03.48944  06 02 10.650  +02 02 30.95  22.4G 14YY49    F51  C~2r7a      
2015 12  03.50213  06 02 10.508  +02 02 30.42  22.1G 14YY49    F51  C~2r7a      
2015 12  04.41699  06 02 00.746  +02 02 03.27  22.4G 14YY49    F51  C~2r7a      
2015 12  04.42961  06 02 00.610  +02 02 03.13  22.2G 14YY49    F51  C~2r7a      
2015 12  04.44236  06 02 00.472  +02 02 02.51  22.2G 14YY49    F51  C~2r7a      
2015 12  31.45385  05 56 54.222  +01 58 02.13  22.3G 14YY49    F51  C~2r7a      
2016 01  01.42415  05 56 43.338  +01 58 13.74  20.8G 14YY49    F51  C~2r7a      
2016 01  11.41018  05 54 55.194  +02 01 34.36  21.7G 14YY49    F51  C~2r7a      
2016 01  11.42204  05 54 55.087  +02 01 34.80  21.5G 14YY49    F51  C~2r7a      
2016 01  11.43390  05 54 54.947  +02 01 35.11  21.5G 14YY49    F51  C~2r7a      
2016 01  11.44572  05 54 54.834  +02 01 35.38  21.6G 14YY49    F51  C~2r7a      
2016 02  06.33850  05 51 17.422  +02 20 15.84  22.2G 14YY49    F51  C~2r7a      
2016 02  06.34929  05 51 17.363  +02 20 16.45  22.4G 14YY49    F51  C~2r7a      
2016 02  06.36010  05 51 17.283  +02 20 17.01  22.5G 14YY49    F51  C~2r7a      
2016 02  06.37089  05 51 17.225  +02 20 17.76  22.3G 14YY49    F51  C~2r7a      
2016 02  26.27870  05 50 02.763  +02 41 42.32  23.3G 14YY49    F51  C~2r7a      
2016 03  05.26010  05 49 59.762  +02 51 13.25  22.5G 14YY49    F51  C~2r7a      
2016 03  05.27205  05 49 59.771  +02 51 14.04  23.5G 14YY49    F51  C~2r7a      
2016 03  05.28394  05 49 59.774  +02 51 14.96  22.7G 14YY49    F51  C~2r7a      
2016 03  05.29584  05 49 59.785  +02 51 15.63  22.5G 14YY49    F51  C~2r7a      
2018 11  14.358970 07 10 57.307  +01 27 09.69  23.0G 14YY49    705              
2018 11  14.421150 07 10 56.997  +01 27 06.71        14YY49    705              

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     0.31       0.00    -0.16
  2   0.0001      0.00     0.13       0.00     0.04
  3   0.0002      0.00    -0.23       0.00     0.14
  4   1.9931      0.00    -0.29       0.00     0.41
  5   1.9932      0.00     0.05       0.00     0.43
  6   1.9932      0.00    -0.06       0.00     0.74
  7   3.0582      0.00     0.04       0.00    -0.04
  8   3.0582      0.00    -0.49       0.00    -0.03
  9   3.0582      0.00     0.03       0.00     0.08
 10   3.0583      0.00     0.11       0.00    -0.10
 11   4.0166      0.00    -0.10       0.00     0.05
 12   4.0166      0.00    -0.10       0.00    -0.23
 13   4.0167      0.00     0.05       0.00    -0.10
 14   4.0167      0.00     0.21       0.00    -0.17
 15   4.0578      0.00     0.27       0.00    -0.21
 16   4.0578      0.00     0.11       0.00    -0.31
 17   4.0578      0.00    -0.06       0.00    -0.43
 18   5.0270      0.00    -0.02       0.00     0.09
 19   5.0270      0.00     0.26       0.00    -0.06
 20   5.0270      0.00     0.10       0.00     0.09
 21   5.0270      0.00    -0.06       0.00    -0.05
 22   5.9364      0.00     0.20       0.00    -0.23
 23   5.9584      0.00     0.08       0.00     0.09
 24   5.9585      0.00     0.11       0.00    -0.17
 25   6.1197      0.00     0.00       0.00    -0.00
 26   6.1197      0.00    -0.02       0.00     0.04
 27   6.1384      0.00     0.11       0.00     0.03
 28   6.1385      0.00     0.03       0.00    -0.05
 29   6.1468      0.00    -0.22       0.00    -0.05
 30   6.1469      0.00    -0.18       0.00    -0.06
 31   6.1469      0.00    -0.16       0.00    -0.08
 32   6.1470      0.00    -0.18       0.00    -0.09
 33   6.1634      0.00    -0.11       0.00    -0.02
 34   6.1634      0.00    -0.05       0.00    -0.00
 35   6.2014      0.00     0.13       0.00     0.07
 36   6.2014      0.00    -0.11       0.00    -0.20
 37   6.2015      0.00     0.04       0.00    -0.01
 38   6.2015      0.00     0.06       0.00    -0.09
 39   7.0917      0.00     0.01       0.00     0.13
 40   7.0917      0.00    -0.10       0.00     0.02
 41   7.1054      0.00    -0.06       0.00    -0.08
 42   7.1054      0.00     0.27       0.00    -0.10
 43   7.1054      0.00     0.02       0.00     0.06
 44   7.1055      0.00    -0.01       0.00     0.00
 45   7.1354      0.00     0.05       0.00    -0.07
 46   7.1355      0.00    -0.10       0.00     0.12
 47   7.1873      0.00    -0.05       0.00     0.01
 48   7.1874      0.00    -0.03       0.00    -0.02
 49   8.2274      0.00    -0.20       0.00     0.22
 50   8.2274      0.00    -0.12       0.00     0.18
 51   8.2275      0.00     0.08       0.00     0.05
 52   8.2851      0.00     0.15       0.00    -0.18
 53   8.2876      0.00     0.23       0.00    -0.00
 54   9.2295      0.00     0.03       0.00    -0.02
 55   9.2351      0.00    -0.14       0.00    -0.10
 56   9.2816      0.00    -0.02       0.00    -0.03
 57   9.2816      0.00     0.01       0.00    -0.01
 58   9.2816      0.00     0.07       0.00    -0.00
 59   9.2817      0.00     0.02       0.00    -0.02
 60   9.3441      0.00    -0.00       0.00    -0.07
 61   9.3442      0.00    -0.14       0.00    -0.09
 62   9.3442      0.00    -0.03       0.00     0.10
 63   9.3442      0.00    -0.08       0.00     0.00
 64  10.1307      0.00     0.26       0.00     0.56
 65  10.2453      0.00    -0.30       0.00     0.09
 66  10.2453      0.00     0.04       0.00    -0.06
 67  10.2454      0.00    -0.02       0.00     0.14
 68  10.2454      0.00    -0.09       0.00     0.14
 69  10.3274      0.00    -0.04       0.00    -0.09
 70  10.3274      0.00    -0.00       0.00    -0.08
 71  10.3274      0.00    -0.04       0.00    -0.06
 72  10.3275      0.00    -0.08       0.00    -0.00
 73  10.3328      0.00    -0.05       0.00    -0.03
 74  10.3328      0.00    -0.15       0.00     0.03
 75  10.3329      0.00     0.00       0.00    -0.11
 76  10.3329      0.00    -0.12       0.00     0.06
 77  10.4037      0.00     0.22       0.00     0.21
 78  10.4064      0.00     0.02       0.00     0.09
 79  11.2092      0.00    -0.07       0.00     0.05
 80  11.2092      0.00    -0.26       0.00    -0.05
 81  11.2093      0.00    -0.02       0.00     0.11
 82  11.2093      0.00    -0.08       0.00    -0.04
 83  11.2118      0.00    -0.04       0.00    -0.11
 84  11.2118      0.00    -0.01       0.00     0.12
 85  11.2119      0.00     0.02       0.00    -0.13
 86  11.2858      0.00     0.14       0.00    -0.04
 87  11.2885      0.00     0.35       0.00    -0.16
 88  11.3158      0.00    -0.10       0.00     0.01
 89  11.3158      0.00     0.18       0.00     0.13
 90  11.3159      0.00    -0.04       0.00     0.12
 91  11.3159      0.00     0.14       0.00     0.06
 92  11.3868      0.00    -0.09       0.00     0.01
 93  11.3868      0.00     0.03       0.00     0.00
 94  11.3869      0.00    -0.16       0.00    -0.05
 95  11.3869      0.00    -0.02       0.00     0.08
 96  11.4414      0.00    -0.06       0.00    -0.08
 97  11.4632      0.00     0.04       0.00     0.13
 98  11.4633      0.00     0.10       0.00     0.05
 99  11.4633      0.00     0.07       0.00     0.11
100  11.4633      0.00     0.16       0.00    -0.08
101  14.1576      0.00     0.06       0.00     0.02
102  14.1577      0.00    -0.05       0.00    -0.04

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.

14YY49    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        31.538    31.537    31.538
ecceobj         0.609     0.609     0.609
incobj         20.380    20.380    20.380
qmin           12.256    12.255    12.263
qmax           51.804    51.756    52.030
amean          31.541    31.625    31.577
amin           31.011    31.061    31.035
amax           32.293    32.229    32.205
emean           0.595     0.601     0.575
emin            0.567     0.586     0.524
emax            0.615     0.615     0.616
imean          22.049    21.040    24.514
imin           20.159    20.159    20.158
imax           23.793    22.321    29.320
excite_mean     0.704     0.700     0.710
fracstop        0.020     0.014     0.034
cjmean          2.484     2.488     2.480

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       218.1     210.5     221.8
kozaiamp         24.2      21.2      22.0