Orbit Fit and Astrometric record for 14XY47

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: 14XY47    
# Created Sat Dec  4 02:13:01 2021
# Orbit generated from Bernstein formalism
# Fitting     48 observations of     48
# Arc:   3.97y
# First observation: 2014/12/12
#  Last observation: 2018/11/30
Preliminary a, adot, b, bdot, g, gdot:
  -0.000093   0.025006  -0.000006   0.002225   0.026026   0.000000
# Chi-squared of fit:    11.12 DOF:     90 RMS:  0.09
# Min/Max residuals:    -0.58    0.20
# Exact a, adot, b, bdot, g, gdot:
  1.519470E-05  2.468291E-02  1.593537E-06  2.183829E-03  2.540907E-02 -2.115176E-03
# Covariance matrix:
  1.0676E-13 -9.4598E-14  1.9336E-15 -4.6609E-15 -3.0813E-14 -7.1740E-13
 -9.4598E-14  1.8870E-13 -7.1261E-15  1.0234E-14  2.2197E-14  1.9163E-12
  1.9336E-15 -7.1261E-15  8.0210E-14 -3.4644E-14  2.1195E-15 -8.0397E-14
 -4.6609E-15  1.0234E-14 -3.4644E-14  2.4501E-14  5.6205E-15  1.2211E-13
 -3.0813E-14  2.2197E-14  2.1195E-15  5.6205E-15  1.0741E-13  3.3794E-13
 -7.1740E-13  1.9163E-12 -8.0397E-14  1.2211E-13  3.3794E-13  2.2317E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -25.778721    4.438812   -0.951473   -0.109255   -0.226673  2457003.633578
# Heliocentric elements and errors
Epoch:              2457000.5000  =  2014/12/09
Mean Anomaly:          239.35421 +/-     0.082
Argument of Peri:       49.41178 +/-     0.080
Long of Asc Node:       82.98702 +/-     0.001
Inclination:            26.19697 +/-     0.000
Eccentricity:         0.07558906 +/-    0.0002
Semi-Major Axis:     37.97769335 +/-    0.0019
Time of Perihelion: 2485648.9406 +/-      19.4
Perihelion:          35.10699518 +/-    0.0061
Aphelion:            40.84839152 +/-    0.0062
Period (y)              234.0459 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           35.50747955 +/-    0.0005
Ecliptic Y            3.71245562 +/-    0.0000
Ecliptic Z          -17.11580793 +/-    0.0002
Ecliptic XDOT        -0.00031253 +/-    0.0000
Ecliptic YDOT         0.00263855 +/-    0.0000
Ecliptic ZDOT         0.00031111 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   39.59184654 +/-    0.0004
Geocenter to KBO     39.35601822 +/-    0.0005
# Hcoef:  7.09

The following table shows the complete astrometric record for 14XY47. 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 (14XY47) followed by the observatory code and reference code for the source of the astrometry.

2014 12  12.13280  00 59 08.130  -21 47 42.26  23.3r 14XY47    W84  C~4yVR      
2014 12  12.13280  00 59 08.13   -21 47 42.2   23.4r 14XY47    W84  C~3cpY      
2014 12  12.13556  00 59 08.122  -21 47 42.17  23.4i 14XY47    W84  C~4yVR      
2014 12  15.12254  00 59 03.229  -21 46 02.10  22.5r 14XY47    W84  C~4yVR      
2014 12  15.12254  00 59 03.23   -21 46 02.1   22.7r 14XY47    W84  C~3cpY      
2014 12  16.07850  00 59 01.846  -21 45 28.70  23.7g 14XY47    W84  C~4yVR      
2014 12  16.07850  00 59 01.85   -21 45 28.7   23.7g 14XY47    W84  C~3cpY      
2014 12  20.11189  00 58 57.011  -21 42 59.98  23.1i 14XY47    W84  C~4yVR      
2014 12  20.11189  00 58 57.01   -21 43 00.0   23.1i 14XY47    W84  C~3cpY      
2014 12  20.11326  00 58 57.013  -21 42 59.96  22.9r 14XY47    W84  C~4yVR      
2014 12  20.11326  00 58 57.01   -21 43 00.0   23.0r 14XY47    W84  C~3cpY      
2014 12  24.10005  00 58 53.877  -21 40 21.39  23.3i 14XY47    W84  C~4yVR      
2014 12  24.10005  00 58 53.88   -21 40 21.4   23.5i 14XY47    W84  C~3cpY      
2015 11  15.15130  01 05 47.418  -21 13 11.71  23.2r 14XY47    W84  C~4yVR      
2015 11  15.15130  01 05 47.42   -21 13 11.7   23.2r 14XY47    W84  C~3cpY      
2015 11  15.15270  01 05 47.413  -21 13 11.45  23.0i 14XY47    W84  C~4yVR      
2015 11  15.15270  01 05 47.41   -21 13 11.4   22.9i 14XY47    W84  C~3cpY      
2015 11  16.07417  01 05 43.674  -21 13 05.25  22.3g 14XY47    W84  C~4yVR      
2015 11  20.18071  01 05 27.541  -21 12 24.51  22.5i 14XY47    W84  C~4yVR      
2015 11  20.18071  01 05 27.54   -21 12 24.5   22.7i 14XY47    W84  C~3cpY      
2015 12  01.06457  01 04 50.828  -21 09 23.32  23.1z 14XY47    W84  C~4yVR      
2016 08  14.42137  01 17 48.852  -19 46 23.81  22.8i 14XY47    W84  C~4yVR      
2016 08  14.42137  01 17 48.85   -19 46 23.8   23.0i 14XY47    W84  C~3cpY      
2016 08  16.24203  01 17 44.673  -19 47 44.19  23.2z 14XY47    W84  C~4yVR      
2016 08  26.38295  01 17 16.186  -19 55 13.58  22.8r 14XY47    W84  C~4yVR      
2016 08  26.38295  01 17 16.18   -19 55 13.6   23.0r 14XY47    W84  C~3cpY      
2016 08  29.36930  01 17 06.244  -19 57 24.93  23.4g 14XY47    W84  C~4yVR      
2016 08  29.36930  01 17 06.24   -19 57 24.9   23.4g 14XY47    W84  C~3cpY      
2016 11  28.07726  01 10 12.220  -20 25 48.06  23.1i 14XY47    W84  C~4yVR      
2016 11  28.07726  01 10 12.22   -20 25 48.0   23.3i 14XY47    W84  C~3cpY      
2016 11  28.07865  01 10 12.221  -20 25 47.99  22.7r 14XY47    W84  C~4yVR      
2016 11  28.07865  01 10 12.22   -20 25 47.9   22.8r 14XY47    W84  C~3cpY      
2016 11  28.08002  01 10 12.213  -20 25 47.90  23.8g 14XY47    W84  C~4yVR      
2016 11  28.08002  01 10 12.21   -20 25 47.9   23.8g 14XY47    W84  C~3cpY      
2016 12  02.03815  01 10 00.045  -20 24 28.32  23.0z 14XY47    W84  C~4yVR      
2016 12  05.15324  01 09 51.369  -20 23 15.95  23.2r 14XY47    W84  C~4yVR      
2016 12  05.15324  01 09 51.37   -20 23 15.9   23.3r 14XY47    W84  C~3cpY      
2016 12  05.15462  01 09 51.371  -20 23 15.95  23.3i 14XY47    W84  C~4yVR      
2016 12  05.15462  01 09 51.37   -20 23 15.9   23.3i 14XY47    W84  C~3cpY      
2016 12  05.15597  01 09 51.367  -20 23 15.96  23.3g 14XY47    W84  C~4yVR      
2016 12  05.15597  01 09 51.37   -20 23 16.0   23.5g 14XY47    W84  C~3cpY      
2017 11  23.06389  01 15 43.534  -19 41 56.50  22.7z 14XY47    W84  C~4yVR      
2017 11  27.17766  01 15 28.786  -19 40 58.11  22.5z 14XY47    W84  C~4yVR      
2017 12  08.05676  01 14 56.255  -19 37 10.95  23.1r 14XY47    W84  C~4yVR      
2017 12  11.09973  01 14 48.980  -19 35 49.30  23.3g 14XY47    W84  C~4yVR      
2018 11  16.17061  01 21 24.139  -18 56 50.02  22.8i 14XY47    W84  C~4yVR      
2018 11  30.17382  01 20 30.572  -18 54 16.84  23.0r 14XY47    W84  C~4yVR      
2018 11  30.17519  01 20 30.565  -18 54 16.79  23.5g 14XY47    W84  C~4yVR      

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     0.03       0.00    -0.05
     2   0.0000      0.03     0.06       0.05     0.01
     3   0.0000     -0.06    -0.00       0.13    -0.03
     4   0.0082    -18.95     0.08     119.72     0.06
     5   0.0082    -18.94     0.09     119.71     0.06
     6   0.0108    -22.12     0.01     158.15     0.05
     7   0.0108    -22.06     0.06     158.13     0.02
     8   0.0218    -19.55    -0.08     321.40     0.07
     9   0.0218    -19.57    -0.10     321.38     0.05
    10   0.0218    -19.57    -0.11     321.38    -0.00
    11   0.0218    -19.51    -0.05     321.40     0.02
    12   0.0328      8.67     0.03     483.43    -0.04
    13   0.0328      8.64    -0.00     483.46    -0.02
    14   0.9254   5921.62    -0.03    -539.63    -0.08
    15   0.9254   5921.59    -0.06    -539.63    -0.08
    16   0.9254   5921.62     0.04    -539.30     0.20
    17   0.9254   5921.64     0.06    -539.37     0.14
    18   0.9280   5877.27     0.03    -510.94    -0.58
    19   0.9392   5691.92     0.01    -375.76     0.03
    20   0.9392   5691.92     0.02    -375.77     0.01
    21   0.9690   5308.44    -0.10      11.23     0.03
    22   1.6736  17355.28    -0.07    -387.19     0.07
    23   1.6736  17355.30    -0.05    -387.21     0.05
    24   1.6786  17265.68     0.06    -432.29     0.05
    25   1.7064  16700.00    -0.04    -651.71     0.01
    26   1.7064  16700.09     0.05    -651.73    -0.01
    27   1.7145  16514.42    -0.01    -705.56    -0.05
    28   1.7145  16514.46     0.02    -705.61    -0.10
    29   1.9629  10513.86    -0.01     382.40    -0.01
    30   1.9629  10513.84    -0.04     382.35    -0.07
    31   1.9629  10513.88     0.05     382.41    -0.06
    32   1.9629  10513.91     0.08     382.49     0.03
    33   1.9629  10513.78    -0.00     382.56     0.04
    34   1.9629  10513.82     0.04     382.54     0.02
    35   1.9737  10395.37     0.13     529.79    -0.02
    36   1.9823  10317.84    -0.04     648.84     0.12
    37   1.9823  10317.80    -0.07     648.80     0.08
    38   1.9823  10317.84    -0.00     648.84     0.06
    39   1.9823  10317.83    -0.01     648.79     0.01
    40   1.9823  10317.79    -0.02     648.75    -0.08
    41   1.9823  10317.77    -0.04     648.81    -0.02
    42   2.9485  15887.96    -0.04     653.72     0.14
    43   2.9597  15727.31     0.05     799.99     0.03
    44   2.9895  15417.20    -0.04    1210.57     0.02
    45   2.9979  15361.72     0.02    1330.00    -0.17
    46   3.9289  21458.05    -0.03     879.13    -0.05
    47   3.9673  20845.67     0.03    1365.01     0.01
    48   3.9673  20845.60     0.01    1365.10     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.

14XY47    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        38.266    38.272    38.261
ecceobj         0.070     0.070     0.070
incobj         26.207    26.207    26.207
qmin           34.364    34.438    34.453
qmax           42.056    41.962    41.972
amean          38.112    38.114    38.102
amin           37.811    37.825    37.806
amax           38.422    38.424    38.412
emean           0.075     0.075     0.074
emin            0.058     0.058     0.058
emax            0.095     0.094     0.094
imean          24.264    24.264    24.269
imin           23.409    23.417    23.417
imax           25.209    25.207    25.212
excite_mean     0.418     0.418     0.418
fracstop        1.000     1.000     1.000
cjmean          2.837     2.837     2.837

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       180.7     181.4     178.1
kozaiamp        179.9     180.0     179.9