Orbit Fit and Astrometric record for 14XP40

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: 14XP40    
# Created Fri May 25 01:38:24 2018
# Orbit generated from Bernstein formalism
# Fitting   39 observations of   40
# Arc:   3.90y
# First observation: 2014/03/02
#  Last observation: 2018/01/24
Preliminary a, adot, b, bdot, g, gdot:
  -0.000826   0.052647   0.000161  -0.002364   0.030680   0.000000
# Chi-squared of fit:    79.16 DOF:   72 RMS:  0.25
# Min/Max residuals:    -0.65    0.60
# Exact a, adot, b, bdot, g, gdot:
  2.266550E-05  4.876406E-02 -1.462941E-06 -2.223921E-03  3.400789E-02 -1.351848E-02
# Covariance matrix:
  1.3288E-13 -1.6863E-13 -1.3326E-15  5.5782E-15 -3.1990E-14 -6.2273E-13
 -1.6863E-13  6.8343E-13  2.0940E-14 -2.3677E-14 -2.8941E-13  2.6698E-12
 -1.3326E-15  2.0940E-14  7.8346E-14 -2.3452E-14 -2.1821E-14  7.7643E-14
  5.5782E-15 -2.3677E-14 -2.3452E-14  1.3407E-14  8.5060E-15 -9.4987E-14
 -3.1990E-14 -2.8941E-13 -2.1821E-14  8.5060E-15  5.0174E-13 -9.8403E-13
 -6.2273E-13  2.6698E-12  7.7643E-14 -9.4987E-14 -9.8403E-13  1.0700E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -11.628519  156.104963   -0.088692   -0.198422   -0.964920  2456718.534218
# Heliocentric elements and errors
Epoch:              2456710.5000  =  2014/02/22
Mean Anomaly:          355.98023 +/-     0.003
Argument of Peri:      294.12396 +/-     0.010
Long of Asc Node:      258.66895 +/-     0.001
Inclination:            11.51472 +/-     0.000
Eccentricity:         0.73372323 +/-    0.0001
Semi-Major Axis:    104.70747248 +/-    0.0410
Time of Perihelion: 2461080.3176 +/-       1.0
Perihelion:          27.88116753 +/-    0.0147
Aphelion:           181.53377743 +/-    0.0718
Period (y)             1071.4569 +/-      0.63
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -27.27101789 +/-    0.0005
Ecliptic Y           11.98581350 +/-    0.0002
Ecliptic Z           -5.92710688 +/-    0.0001
Ecliptic XDOT        -0.00058834 +/-    0.0000
Ecliptic YDOT        -0.00403872 +/-    0.0000
Ecliptic ZDOT         0.00004414 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   30.37266432 +/-    0.0005
Geocenter to KBO     29.40494342 +/-    0.0006
# Hcoef:  7.07

The following table shows the complete astrometric record for 14XP40. 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 (14XP40) followed by the observatory code and reference code for the source of the astrometry.

2014 03  02.03344  10 14 28.36   -01 33 13.6   23.0g 14XP40    W84  C~2TKm      
2014 03  02.12401  10 14 27.84   -01 33 10.1   22.5g 14XP40    W84  C~2TKm      
2014 03  02.21625  10 14 27.28   -01 33 07.2   22.7g 14XP40    W84  C~2TKm      
2014 03  02.30957  10 14 26.74   -01 33 03.8   22.4g 14XP40    W84  C~2TKm      
2014 03  03.02306  10 14 22.61   -01 32 38.8   21.4g 14XP40    W84  C~2TKm      
2014 03  03.11495  10 14 22.07   -01 32 35.6   21.3g 14XP40    W84  C~2TKm      
2014 03  03.20626  10 14 21.55   -01 32 32.5   20.0g 14XP40    W84  C~2TKm      
2014 03  04.02396  10 14 16.83   -01 32 03.5   23.2g 14XP40    W84  C~2TKm      
2014 03  04.11633  10 14 16.29   -01 32 00.4   21.2g 14XP40    W84  C~2TKm      
2014 03  04.20876  10 14 15.75   -01 31 56.9   21.1g 14XP40    W84  C~2TKm      
2014 03  04.30071  10 14 15.22   -01 31 53.8   21.3g 14XP40    W84  C~2TKm      
2014 12  01.58518  10 30 09.190  -02 47 35.13  22.3w 14XP40    F51  C~1vXw      
2014 12  01.59707  10 30 09.206  -02 47 35.89  21.8w 14XP40    F51  C~1vXw      
2014 12  01.61151  10 30 09.200  -02 47 36.45  22.2w 14XP40    F51  C~1vXw      
2014 12  01.62341  10 30 09.230  -02 47 36.52  21.9w 14XP40    F51  C~1vXw      
2014 12  01.63637  10 30 09.250  -02 47 37.31  21.9w 14XP40    F51  C~1vXw      
2015 01  26.45342  10 28 08.853  -02 57 02.52  21.9w 14XP40    F51  C~1vXw      
2015 01  26.46481  10 28 08.796  -02 57 02.48  21.8w 14XP40    F51  C~1vXw      
2015 01  26.47617  10 28 08.733  -02 57 02.30  21.9w 14XP40    F51  C~1vXw      
2015 02  20.43644  10 25 50.065  -02 47 36.81  22.0w 14XP40    F51  C~1vXw      
2015 02  20.44914  10 25 49.983  -02 47 36.31  21.8w 14XP40    F51  C~1vXw      
2015 02  20.46183  10 25 49.910  -02 47 35.99  21.9w 14XP40    F51  C~1vXw      
2015 02  22.39787  10 25 38.416  -02 46 35.87  21.6w 14XP40    F51  C~1vXw      
2015 02  22.41079  10 25 38.332  -02 46 35.58  21.6w 14XP40    F51  C~1vXw      
2015 02  22.42404  10 25 38.256  -02 46 34.94  21.9w 14XP40    F51  C~1vXw      
2018 01  23.02014  11 01 06.05   -06 30 17.5   22.1R 14XP40    G36  C~2XMI      
2018 01  23.04895  11 01 05.92   -06 30 17.3   22.0R 14XP40    G36  C~2XMI      
2018 01  23.07317  11 01 05.83   -06 30 17.1   21.4R 14XP40    G36  C~2XMI      
2018 01  23.09827  11 01 05.70   -06 30 16.9   21.6R 14XP40    G36  C~2XMI      
2018 01  23.12247  11 01 05.62   -06 30 16.9   21.7R 14XP40    G36  C~2XMI      
2018 01  23.14760  11 01 05.51   -06 30 16.8   21.5R 14XP40    G36  C~2XMI      
2018 01  23.16784  11 01 05.42   -06 30 16.5   21.6R 14XP40    G36  C~2XMI      
2018 01  23.19669  11 01 05.38   -06 30 16.3   21.2R 14XP40    G36  C~2XMI      
2018 01  23.21780  11 01 05.20   -06 30 16.1   21.2R 14XP40    G36  C~2XMI      
2018 01  23.24867  11 01 05.08   -06 30 16.1   21.8R 14XP40    G36  C~2XMI      
2018 01  23.99535  11 01 02.06   -06 30 12.0   21.4R 14XP40    G36  C~2XMI      
2018 01  24.04230  11 01 01.87   -06 30 11.6   21.3R 14XP40    G36  C~2XMI      
2018 01  24.09284  11 01 01.66   -06 30 11.4   21.3R 14XP40    G36  C~2XMI      
2018 01  24.16851  11 01 01.34   -06 30 10.8   21.6R 14XP40    G36  C~2XMI      
2018 01  24.22351  11 01 01.11   -06 30 10.6   21.6R 14XP40    G36  C~2XMI      

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     0.00       0.00     0.09
  2   0.0002     -8.54     0.08       0.42     0.50
  3   0.0005    -17.41    -0.00       0.07     0.15
  4   0.0008    -26.19     0.10       0.29     0.35
  5   0.0027    -92.97    -0.15       1.05     0.37
  6   0.0030   -101.68    -0.14       1.08     0.35
  7   0.0032   -110.07     0.15       1.13     0.36
  8   0.0054   -186.54    -0.07       2.39     0.52
  9   0.0057   -195.21     0.00       2.34     0.37
 10   0.0060   -204.03    -0.04       2.65     0.60
 11   0.0062   -212.56     0.13       2.65     0.51
 12   0.7517  14785.28     0.02     959.08    -0.14
 13   0.7517  14785.78     0.20     958.46    -0.46
 14   0.7518  14785.90    -0.07     957.90    -0.65
 15   0.7518  14786.35     0.05     958.00    -0.25
 16   0.7518  14786.91     0.27     957.37    -0.55
 17   0.9046  13302.61    -0.04    -224.50    -0.29
 18   0.9047  13301.80     0.01    -224.77    -0.39
 19   0.9047  13300.85    -0.08    -224.95    -0.40
 20   0.9730  11152.06     0.01    -449.78    -0.43
 21   0.9731  11150.73    -0.10    -449.76    -0.35
 22   0.9731  11149.59    -0.02    -449.85    -0.39
 23   0.9784  10966.78    -0.08    -456.16    -0.34
 24   0.9784  10965.49    -0.12    -456.35    -0.48
 25   0.9785  10964.20    -0.14    -456.17    -0.25
 26   3.8959  46207.70     0.24   -1663.85     0.02
 27   3.8960  46205.72     0.06   -1664.35     0.01
 28   3.8961  46204.33     0.18   -1664.64     0.14
 29   3.8961  46202.35    -0.23   -1665.14     0.07
 30   3.8962  46201.18     0.11   -1665.57     0.05
 31   3.8963  46199.53     0.03   -1666.06    -0.01
 32   3.8963  46198.10    -0.13   -1666.25     0.15
 33   3.8964  46197.44 (   1.02)  -1666.27 (   0.61)
 34   3.8965  46194.73    -0.37   -1667.04     0.20
 35   3.8966  46192.97    -0.20   -1667.68     0.08
 36   3.8986  46147.20    -0.04   -1679.87    -0.02
 37   3.8987  46144.27     0.03   -1680.50     0.14
 38   3.8989  46141.12     0.12   -1681.43     0.06
 39   3.8991  46136.21     0.08   -1682.56     0.19
 40   3.8992  46132.77     0.17   -1683.60     0.06

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.

14XP40    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj       102.241   102.352   102.130
ecceobj         0.727     0.727     0.727
incobj         11.504    11.504    11.504
qmin           27.118    27.050    27.154
qmax          195.121   189.726   185.002
amean         105.726   103.303    99.926
amin          101.788   100.101    90.181
amax          111.620   108.957   106.464
emean           0.734     0.728     0.716
emin            0.722     0.714     0.677
emax            0.748     0.741     0.738
imean          13.842    13.712    14.847
imin           12.843    12.822    12.845
imax           14.616    14.546    17.017
excite_mean     0.772     0.766     0.760
fracstop        0.118     0.108     0.099
cjmean          2.754     2.753     2.755

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       314.7     312.5     316.3
kozaiamp         19.1      18.8      21.1