Orbit Fit and Astrometric record for 14YX49

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: 14YX49    
# Created Fri Oct 20 01:38:35 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   58 observations of   58
# Arc:  13.35y
# First observation: 2001/09/22
#  Last observation: 2015/01/28
# Chi-squared of fit:   298.00 DOF:  110 RMS:  0.40
# Min/Max residuals:    -0.97    1.84
# Exact a, adot, b, bdot, g, gdot:
  2.779577E-05  1.395374E-01  4.424901E-06  3.357893E-02  7.595227E-02  1.413014E-02
# Covariance matrix:
  4.8455E-13 -3.2283E-13  1.0753E-14 -1.3357E-14  4.1739E-13 -1.1708E-13
 -3.2283E-13  1.3785E-10 -4.4408E-12  5.0680E-11  4.7387E-11  2.1330E-10
  1.0753E-14 -4.4408E-12  4.3549E-13 -2.2551E-12 -1.5490E-12 -7.1586E-12
 -1.3357E-14  5.0680E-11 -2.2551E-12  2.4020E-11  1.7862E-11  8.1426E-11
  4.1739E-13  4.7387E-11 -1.5490E-12  1.7862E-11  1.7426E-11  7.5074E-11
 -1.1708E-13  2.1330E-10 -7.1586E-12  8.1426E-11  7.5074E-11  3.4286E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
  -23.909551   33.769095    0.569744   -0.333857   -0.752759  2452174.872113
# Heliocentric elements and errors
Epoch:              2452174.5000  =  2001/09/22
Mean Anomaly:            8.92792 +/-     0.001
Argument of Peri:      280.78379 +/-     0.001
Long of Asc Node:       91.49225 +/-     0.001
Inclination:            25.51605 +/-     0.000
Eccentricity:         0.28164153 +/-    0.0000
Semi-Major Axis:     19.22843534 +/-    0.0000
Time of Perihelion: 2451410.7304 +/-       0.1
Perihelion:          13.81290947 +/-    0.0000
Aphelion:            24.64396121 +/-    0.0000
Period (y)               84.3187 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           11.00906540 +/-    0.0000
Ecliptic Y            6.68034336 +/-    0.0000
Ecliptic Z           -5.33609741 +/-    0.0000
Ecliptic XDOT        -0.00200964 +/-    0.0000
Ecliptic YDOT         0.00471371 +/-    0.0000
Ecliptic ZDOT         0.00090032 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   13.93914478 +/-    0.0000
Geocenter to KBO     13.16614739 +/-    0.0000
# Hcoef:  8.74

The following table shows the complete astrometric record for 14YX49. 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 (14YX49) followed by the observatory code and reference code for the source of the astrometry.

2001 09  22.37137  02 38 10.55   -09 46 17.6         14YX49    644  C~1vXy      
2001 09  22.39296  02 38 10.39   -09 46 19.6   20.1R 14YX49    644  C~1vXy      
2001 09  22.41448  02 38 10.14   -09 46 22.1         14YX49    644  C~1vXy      
2001 11  18.35656  02 27 01.52   -10 34 45.3   19.9R 14YX49    608  C~1vXy      
2001 11  18.36720  02 27 01.40   -10 34 45.1   20.1R 14YX49    608  C~1vXy      
2001 11  18.37793  02 27 01.28   -10 34 45.3   19.8R 14YX49    608  C~1vXy      
2002 10  05.41488  03 03 43.95   -05 33 30.1   19.6R 14YX49    644  C~1vXy      
2002 10  05.42532  03 03 43.87   -05 33 31.1   19.9R 14YX49    644  C~1vXy      
2002 10  05.43802  03 03 43.75   -05 33 31.7   19.9R 14YX49    644  C~1vXy      
2002 10  06.42549  03 03 34.12   -05 34 41.4   19.6R 14YX49    644  C~1vXy      
2002 10  06.44764  03 03 33.98   -05 34 43.4   20.2R 14YX49    644  C~1vXy      
2002 10  06.45284  03 03 33.93   -05 34 43.4   19.6R 14YX49    644  C~1vXy      
2002 10  16.51644  03 01 47.05   -05 45 54.2         14YX49    644  C~1vXy      
2002 10  16.52804  03 01 46.90   -05 45 55.0   19.9R 14YX49    644  C~1vXy      
2002 10  16.53851  03 01 46.83   -05 45 55.4         14YX49    644  C~1vXy      
2002 10  28.39707  02 59 24.10   -05 56 36.8   20.2R 14YX49    644  C~1vXy      
2002 10  28.41925  02 59 23.73   -05 56 38.8         14YX49    644  C~1vXy      
2002 10  28.43021  02 59 23.57   -05 56 39.4   20.0R 14YX49    644  C~1vXy      
2002 10  28.44118  02 59 23.43   -05 56 40.2   20.2R 14YX49    644  C~1vXy      
2002 11  06.33969  02 57 29.45   -06 02 23.9   20.2R 14YX49    644  C~1vXy      
2002 11  06.36082  02 57 29.22   -06 02 24.8         14YX49    644  C~1vXy      
2002 11  06.38189  02 57 28.95   -06 02 24.8   19.8R 14YX49    644  C~1vXy      
2002 11  16.17084  02 55 22.54   -06 05 55.3   19.9R 14YX49    644  C~1vXy      
2003 11  14.29736  03 22 37.45   -01 38 19.5   21.0R 14YX49    644  C~1vXy      
2003 11  14.37439  03 22 36.43   -01 38 21.2   20.1R 14YX49    644  C~1vXy      
2003 11  14.43722  03 22 35.60   -01 38 22.3   21.1R 14YX49    644  C~1vXy      
2005 11  29.26184  04 10 12.85   +06 44 34.5   21.2R 14YX49    644  C~1vXy      
2005 11  29.32575  04 10 12.00   +06 44 33.9   21.1R 14YX49    644  C~1vXy      
2005 11  29.38905  04 10 11.19   +06 44 33.6   20.4R 14YX49    644  C~1vXy      
2006 10  31.441345 04 40 26.26   +10 41 35.2   20.6V 14YX49    645  C~1vXy      
2006 10  31.442175 04 40 26.25   +10 41 35.2   20.2V 14YX49    645  C~1vXy      
2006 10  31.444662 04 40 26.22   +10 41 35.2   21.3V 14YX49    645  C~1vXy      
2006 11  21.32262  04 36 24.22   +10 36 46.9   20.4V 14YX49    G96  C~1vXy      
2006 11  21.33315  04 36 24.08   +10 36 47.1   20.1V 14YX49    G96  C~1vXy      
2006 11  21.34377  04 36 23.97   +10 36 47.2   19.8V 14YX49    G96  C~1vXy      
2006 11  21.35429  04 36 23.79   +10 36 47.0   20.3V 14YX49    G96  C~1vXy      
2010 12  06.18584  06 06 17.09   +22 56 07.3         14YX49    691  C~1vXy      
2010 12  06.20364  06 06 16.91   +22 56 07.4         14YX49    691  C~1vXy      
2010 12  06.22143  06 06 16.69   +22 56 08.2         14YX49    691  C~1vXy      
2013 12  26.37837  07 08 07.255  +29 01 07.67  21.1w 14YX49    F51  C~1vXy      
2013 12  26.39379  07 08 07.062  +29 01 08.39  21.1w 14YX49    F51  C~1vXy      
2013 12  26.40924  07 08 06.866  +29 01 08.92  21.2w 14YX49    F51  C~1vXy      
2014 01  24.29820  07 02 11.540  +29 18 46.71  21.1w 14YX49    F51  C~1vXy      
2014 01  24.30945  07 02 11.411  +29 18 47.03  21.1w 14YX49    F51  C~1vXy      
2014 01  24.32068  07 02 11.275  +29 18 47.23  21.1w 14YX49    F51  C~1vXy      
2014 01  24.33195  07 02 11.145  +29 18 47.71  21.2w 14YX49    F51  C~1vXy      
2014 12  26.52438  07 29 22.659  +30 24 00.37  21.4w 14YX49    F51  C~1vXy      
2014 12  26.53670  07 29 22.518  +30 24 00.99  21.3w 14YX49    F51  C~1vXy      
2014 12  26.54899  07 29 22.366  +30 24 01.69  21.1w 14YX49    F51  C~1vXy      
2014 12  26.56136  07 29 22.224  +30 24 02.26  21.2w 14YX49    F51  C~1vXy      
2015 01  20.32696  07 24 19.813  +30 42 08.90  21.2w 14YX49    F51  C~1vXy      
2015 01  20.33889  07 24 19.670  +30 42 09.37  21.2w 14YX49    F51  C~1vXy      
2015 01  20.35081  07 24 19.525  +30 42 09.79  21.1w 14YX49    F51  C~1vXy      
2015 01  20.36274  07 24 19.374  +30 42 10.22  21.2w 14YX49    F51  C~1vXy      
2015 01  28.29121  07 22 45.312  +30 46 32.71  21.1r 14YX49    F51  C~1vXy      
2015 01  28.30368  07 22 45.169  +30 46 33.05  21.3r 14YX49    F51  C~1vXy      
2015 01  28.31587  07 22 45.028  +30 46 33.53  21.2r 14YX49    F51  C~1vXy      
2015 01  28.32811  07 22 44.879  +30 46 33.80  21.1r 14YX49    F51  C~1vXy      

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    -0.49       0.00     1.28
  2   0.0001      0.00     0.53       0.00     0.54
  3   0.0001      0.00    -0.45       0.00    -0.08
  4   0.1560      0.00     0.19       0.00    -0.28
  5   0.1560      0.00     0.36       0.00    -0.11
  6   0.1561      0.00     0.55       0.00    -0.36
  7   1.0350      0.00    -0.32       0.00     0.06
  8   1.0351      0.00     0.02       0.00    -0.19
  9   1.0351      0.00     0.09       0.00     0.12
 10   1.0378      0.00    -0.96       0.00     0.81
 11   1.0379      0.00     0.27       0.00     0.38
 12   1.0379      0.00     0.30       0.00     0.75
 13   1.0654      0.00     0.25       0.00     0.06
 14   1.0655      0.00     0.01       0.00    -0.03
 15   1.0655      0.00     0.76       0.00     0.22
 16   1.0979      0.00     1.07       0.00     0.68
 17   1.0980      0.00    -0.23       0.00    -0.31
 18   1.0980      0.00    -0.52       0.00    -0.41
 19   1.0981      0.00    -0.52       0.00    -0.71
 20   1.1224      0.00    -0.57       0.00    -0.72
 21   1.1225      0.00     0.16       0.00    -0.97
 22   1.1225      0.00     0.28       0.00    -0.32
 23   1.1493      0.00     0.02       0.00     1.84
 24   2.1435      0.00     0.16       0.00     0.10
 25   2.1437      0.00     0.11       0.00     0.05
 26   2.1439      0.00     0.07       0.00     0.29
 27   4.1859      0.00     0.37       0.00     0.53
 28   4.1860      0.00     0.28       0.00     0.13
 29   4.1862      0.00     0.67       0.00     0.03
 30   5.1063      0.00     0.57       0.00    -0.37
 31   5.1063      0.00     0.55       0.00    -0.35
 32   5.1063      0.00     0.49       0.00    -0.31
 33   5.1635      0.00     0.16       0.00    -0.54
 34   5.1635      0.00     0.10       0.00    -0.26
 35   5.1635      0.00     0.51       0.00    -0.08
 36   5.1635      0.00    -0.16       0.00    -0.20
 37   9.2041      0.00    -0.51       0.00     0.04
 38   9.2042      0.00     0.05       0.00    -0.34
 39   9.2042      0.00     0.02       0.00    -0.01
 40  12.2601      0.00     0.22       0.00    -0.07
 41  12.2602      0.00     0.20       0.00    -0.03
 42  12.2602      0.00     0.14       0.00    -0.19
 43  12.3393      0.00     0.25       0.00     0.06
 44  12.3393      0.00     0.31       0.00     0.05
 45  12.3394      0.00     0.26       0.00    -0.07
 46  12.3394      0.00     0.30       0.00     0.08
 47  13.2598      0.00    -0.07       0.00     0.04
 48  13.2599      0.00     0.02       0.00     0.04
 49  13.2599      0.00    -0.06       0.00     0.13
 50  13.2599      0.00     0.03       0.00     0.08
 51  13.3277      0.00     0.12       0.00     0.02
 52  13.3278      0.00     0.18       0.00     0.05
 53  13.3278      0.00     0.21       0.00     0.04
 54  13.3278      0.00     0.16       0.00     0.03
 55  13.3495      0.00     0.06       0.00     0.10
 56  13.3496      0.00     0.10       0.00     0.05
 57  13.3496      0.00     0.14       0.00     0.16
 58  13.3496      0.00     0.06       0.00     0.05

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.

14YX49    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        19.285    19.285    19.285
ecceobj         0.284     0.284     0.284
incobj         25.520    25.520    25.520
qmin           12.858    13.043    12.856
qmax           25.501    25.526    25.703
amean          19.206    19.216    19.215
amin           18.698    18.855    18.807
amax           19.437    19.503    19.479
emean           0.272     0.273     0.264
emin            0.246     0.245     0.200
emax            0.319     0.313     0.327
imean          23.725    23.742    23.288
imin           22.601    23.175    21.805
imax           24.428    24.365    24.541
excite_mean     0.486     0.487     0.476
fracstop        0.052     0.057     0.090
cjmean          2.975     2.974     2.982

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       176.7     170.8     173.1
kozaiamp        179.9     179.5     179.7