Orbit Fit and Astrometric record for 14XZ47

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: 14XZ47    
# Created Wed Dec  8 02:12:59 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     47 observations of     47
# Arc:   5.86y
# First observation: 2014/12/11
#  Last observation: 2020/10/20
# Chi-squared of fit:    11.22 DOF:     88 RMS:  0.09
# Min/Max residuals:    -0.17    0.26
# Exact a, adot, b, bdot, g, gdot:
  1.824960E-05  3.270503E-02  1.151674E-06  6.470083E-04  2.828580E-02 -3.076039E-03
# Covariance matrix:
  1.1472E-13 -7.8210E-14 -1.8127E-15  1.2205E-15  3.0870E-15 -2.8758E-13
 -7.8210E-14  9.2841E-14  5.5882E-15 -3.3004E-15 -2.1482E-14  4.2001E-13
 -1.8127E-15  5.5882E-15  8.5182E-14 -2.9009E-14 -3.1784E-14  1.6473E-15
  1.2205E-15 -3.3004E-15 -2.9009E-14  1.5471E-14  1.6355E-14 -3.2188E-15
  3.0870E-15 -2.1482E-14 -3.1784E-14  1.6355E-14  1.8478E-13  5.1842E-14
 -2.8758E-13  4.2001E-13  1.6473E-15 -3.2188E-15  5.1842E-14  2.3920E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
  -33.859175   21.442825   -0.827578   -0.296767   -0.442672  2457002.685248
# Heliocentric elements and errors
Epoch:              2457002.5000  =  2014/12/11
Mean Anomaly:          346.44592 +/-     0.009
Argument of Peri:      295.19072 +/-     0.015
Long of Asc Node:      109.40713 +/-     0.000
Inclination:            33.42852 +/-     0.000
Eccentricity:         0.23238659 +/-    0.0001
Semi-Major Axis:     45.99475130 +/-    0.0043
Time of Perihelion: 2461292.2153 +/-      15.7
Perihelion:          35.30618803 +/-    0.0043
Aphelion:            56.68331456 +/-    0.0060
Period (y)              311.9397 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           27.51629658 +/-    0.0004
Ecliptic Y           11.69910966 +/-    0.0002
Ecliptic Z          -19.69731488 +/-    0.0003
Ecliptic XDOT        -0.00135902 +/-    0.0000
Ecliptic YDOT         0.00286374 +/-    0.0000
Ecliptic ZDOT         0.00021799 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   35.80507349 +/-    0.0004
Geocenter to KBO     35.35352716 +/-    0.0005
# Hcoef:  7.22

The following table shows the complete astrometric record for 14XZ47. 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 (14XZ47) followed by the observatory code and reference code for the source of the astrometry.

2014 12  11.18447  02 11 37.456  -22 58 51.01  22.2z 14XZ47    W84  C~4yVR      
2014 12  13.19611  02 11 30.006  -22 57 48.68  22.0z 14XZ47    W84  C~4yVR      
2014 12  13.19611  02 11 30.01   -22 57 48.7   22.5z 14XZ47    W84  C~3cpY      
2014 12  17.18582  02 11 16.319  -22 55 32.64  23.0r 14XZ47    W84  C~4yVR      
2014 12  17.18582  02 11 16.32   -22 55 32.6   23.1r 14XZ47    W84  C~3cpY      
2015 01  12.10909  02 10 27.583  -22 34 47.42  23.0r 14XZ47    W84  C~4yVR      
2015 01  12.10909  02 10 27.58   -22 34 47.4   23.2r 14XZ47    W84  C~3cpY      
2015 01  12.11183  02 10 27.584  -22 34 47.35  22.4i 14XZ47    W84  C~4yVR      
2015 01  12.11183  02 10 27.58   -22 34 47.3   22.9i 14XZ47    W84  C~3cpY      
2015 01  14.08363  02 10 26.961  -22 32 50.82  24.0g 14XZ47    W84  C~4yVR      
2015 01  28.06771  02 10 35.769  -22 18 03.66  22.0z 14XZ47    W84  C~4yVS      
2015 01  28.06771  02 10 35.77   -22 18 03.7   22.3z 14XZ47    W84  C~3cpY      
2015 11  21.10802  02 20 34.249  -22 16 42.64  22.2i 14XZ47    W84  C~4yVS      
2015 11  21.10802  02 20 34.25   -22 16 42.6   22.3i 14XZ47    W84  C~3cpY      
2015 12  04.07306  02 19 30.282  -22 13 58.26  24.2g 14XZ47    W84  C~4yVS      
2015 12  14.19663  02 18 48.382  -22 09 37.26  22.7r 14XZ47    W84  C~4yVS      
2015 12  14.19802  02 18 48.388  -22 09 37.13  23.6g 14XZ47    W84  C~4yVS      
2016 02  06.03997  02 18 02.373  -21 21 20.13  22.0i 14XZ47    W84  C~4yVS      
2016 02  06.03997  02 18 02.38   -21 21 20.1   22.2i 14XZ47    W84  C~3cpY      
2016 10  28.26998  02 30 05.844  -21 23 14.06  22.4r 14XZ47    W84  C~4yVS      
2016 10  28.26998  02 30 05.84   -21 23 14.1   22.7r 14XZ47    W84  C~3cpY      
2016 10  28.27836  02 30 05.785  -21 23 14.33  23.4g 14XZ47    W84  C~4yVS      
2016 10  28.27974  02 30 05.774  -21 23 14.46  21.9i 14XZ47    W84  C~4yVS      
2016 10  28.27974  02 30 05.78   -21 23 14.4   22.3i 14XZ47    W84  C~3cpY      
2016 11  05.28248  02 29 19.680  -21 25 36.00  23.7g 14XZ47    W84  C~4yVS      
2016 11  05.28248  02 29 19.68   -21 25 36.0   23.8g 14XZ47    W84  C~3cpY      
2016 11  18.25075  02 28 06.624  -21 26 55.57  22.4z 14XZ47    W84  C~4yVS      
2016 11  18.25075  02 28 06.62   -21 26 55.6   22.6z 14XZ47    W84  C~3cpY      
2017 01  22.07491  02 24 52.181  -20 48 40.05  23.1r 14XZ47    W84  C~4yVS      
2017 01  22.07491  02 24 52.18   -20 48 40.0   23.0r 14XZ47    W84  C~3cpY      
2017 01  22.07629  02 24 52.194  -20 48 40.02  22.7i 14XZ47    W84  C~4yVS      
2017 01  22.07629  02 24 52.19   -20 48 40.0   22.8i 14XZ47    W84  C~3cpY      
2017 01  22.07766  02 24 52.176  -20 48 39.64  23.8g 14XZ47    W84  C~4yVS      
2017 09  18.37775  02 40 40.258  -20 05 07.19  22.3i 14XZ47    W84  C~4yVS      
2017 09  18.37913  02 40 40.245  -20 05 07.24  22.6r 14XZ47    W84  C~4yVS      
2017 09  18.38051  02 40 40.256  -20 05 07.23  24.1g 14XZ47    W84  C~4yVS      
2017 10  11.31213  02 38 58.795  -20 22 31.80  22.2z 14XZ47    W84  C~4yVS      
2017 11  10.23316  02 36 11.058  -20 34 53.11  22.4i 14XZ47    W84  C~4yVS      
2017 11  23.25744  02 34 58.563  -20 35 22.43  23.0r 14XZ47    W84  C~4yVS      
2017 11  23.25882  02 34 58.560  -20 35 22.39  24.1g 14XZ47    W84  C~4yVS      
2017 12  24.16675  02 32 43.865  -20 23 46.99  22.5g 14XZ47    W84  C~4yVS      
2018 10  28.32708  02 44 41.842  -19 38 02.64  22.2z 14XZ47    W84  C~4yVS      
2018 11  16.27877  02 42 53.061  -19 42 41.32  22.7r 14XZ47    W84  C~4yVS      
2018 11  16.28014  02 42 53.063  -19 42 41.28  22.2i 14XZ47    W84  C~4yVS      
2018 11  16.28153  02 42 53.060  -19 42 41.22  23.7g 14XZ47    W84  C~4yVS      
2020 10  20.362030 02 59 43.710  -17 44 10.71  22.2G 14XZ47    G37  C~4Ky0      
2020 10  20.420770 02 59 43.411  -17 44 12.94        14XZ47    G37  C~4Ky0      

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     0.08       0.00    -0.15
     2   0.0055      0.00     0.02       0.00    -0.01
     3   0.0055      0.00     0.08       0.00    -0.03
     4   0.0164      0.00    -0.02       0.00     0.08
     5   0.0164      0.00    -0.03       0.00     0.04
     6   0.0874      0.00    -0.03       0.00    -0.01
     7   0.0874      0.00     0.01       0.00    -0.03
     8   0.0874      0.00     0.05       0.00    -0.12
     9   0.0874      0.00    -0.01       0.00    -0.07
    10   0.0928      0.00    -0.04       0.00     0.15
    11   0.1311      0.00    -0.07       0.00     0.05
    12   0.1311      0.00    -0.08       0.00     0.09
    13   0.9443      0.00     0.01       0.00     0.09
    14   0.9443      0.00    -0.00       0.00     0.05
    15   0.9798      0.00    -0.02       0.00    -0.09
    16   1.0076      0.00     0.01       0.00     0.05
    17   1.0076      0.00     0.18       0.00     0.14
    18   1.1550      0.00     0.06       0.00    -0.06
    19   1.1550      0.00    -0.04       0.00    -0.09
    20   1.8811      0.00    -0.03       0.00     0.07
    21   1.8811      0.00     0.03       0.00     0.11
    22   1.8812      0.00    -0.13       0.00     0.02
    23   1.8812      0.00    -0.08       0.00    -0.02
    24   1.8812      0.00    -0.17       0.00    -0.08
    25   1.9031      0.00     0.03       0.00    -0.14
    26   1.9031      0.00     0.03       0.00    -0.14
    27   1.9386      0.00     0.00       0.00    -0.03
    28   1.9386      0.00     0.06       0.00     0.00
    29   2.1161      0.00    -0.01       0.00     0.08
    30   2.1161      0.00     0.00       0.00     0.03
    31   2.1161      0.00     0.19       0.00    -0.03
    32   2.1161      0.00     0.13       0.00    -0.01
    33   2.1161      0.00    -0.08       0.00     0.26
    34   2.7712      0.00     0.06       0.00    -0.01
    35   2.7712      0.00    -0.06       0.00     0.01
    36   2.7712      0.00     0.18       0.00     0.09
    37   2.8340      0.00     0.05       0.00    -0.04
    38   2.9159      0.00    -0.08       0.00    -0.01
    39   2.9516      0.00    -0.01       0.00     0.01
    40   2.9516      0.00     0.05       0.00     0.04
    41   3.0362      0.00     0.05       0.00    -0.08
    42   3.8799      0.00     0.02       0.00    -0.13
    43   3.9318      0.00    -0.16       0.00    -0.06
    44   3.9318      0.00    -0.02       0.00    -0.01
    45   3.9318      0.00     0.06       0.00     0.06
    46   5.8595      0.00    -0.14       0.00     0.18
    47   5.8596      0.00     0.17       0.00    -0.14

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.

14XZ47    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        46.493    46.492    46.493
ecceobj         0.239     0.239     0.239
incobj         33.434    33.434    33.434
qmin           34.766    34.773    34.765
qmax           57.857    57.831    57.862
amean          46.085    46.085    46.084
amin           45.683    45.684    45.683
amax           46.577    46.580    46.577
emean           0.224     0.224     0.224
emin            0.206     0.206     0.206
emax            0.243     0.243     0.243
imean          32.038    32.038    32.038
imin           31.749    31.749    31.749
imax           32.351    32.354    32.352
excite_mean     0.576     0.576     0.576
fracstop        1.000     1.000     1.000
cjmean          2.698     2.698     2.698

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       175.3     175.2     175.3
kozaiamp        180.0     180.0     180.0