Orbit Fit and Astrometric record for 14GZ53

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: 14GZ53    
# Created Sat Dec 16 02:38:01 2017
# Orbit generated from Bernstein formalism
# Fitting   30 observations of   30
# Arc:   2.93y
# First observation: 2012/05/21
#  Last observation: 2015/04/25
Preliminary a, adot, b, bdot, g, gdot:
  -0.000115   0.023761   0.000005  -0.001480   0.024601   0.000000
# Chi-squared of fit:    11.18 DOF:   54 RMS:  0.11
# Min/Max residuals:    -0.27    0.20
# Exact a, adot, b, bdot, g, gdot:
  1.557918E-05  2.369897E-02 -9.003562E-07 -1.477110E-03  2.413948E-02 -3.288965E-04
# Covariance matrix:
  2.0610E-13 -1.8489E-13 -1.8787E-15  6.9131E-15 -1.1106E-13 -1.6552E-12
 -1.8489E-13  3.7511E-13  5.0284E-15 -1.9079E-14  1.8232E-13  4.5707E-12
 -1.8787E-15  5.0284E-15  1.5813E-13 -6.7019E-14  3.4955E-15  6.9386E-14
  6.9131E-15 -1.9079E-14 -6.7019E-14  4.1870E-14 -1.1665E-14 -2.6190E-13
 -1.1106E-13  1.8232E-13  3.4955E-15 -1.1665E-14  4.4538E-13  2.7876E-12
 -1.6552E-12  4.5707E-12  6.9386E-14 -2.6190E-13  2.7876E-12  6.2738E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
    4.804089 -148.488217   -0.491039    0.074378   -0.885390  2456068.848946
# Heliocentric elements and errors
Epoch:              2456060.5000  =  2012/05/13
Mean Anomaly:          357.91271 +/-     0.562
Argument of Peri:      129.79525 +/-     0.600
Long of Asc Node:       84.43534 +/-     0.004
Inclination:             5.94000 +/-     0.000
Eccentricity:         0.03294660 +/-    0.0001
Semi-Major Axis:     43.75152365 +/-    0.0046
Time of Perihelion: 2456673.3700 +/-     164.9
Perihelion:          42.31005986 +/-    0.0056
Aphelion:            45.19298743 +/-    0.0058
Period (y)              289.3996 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -35.69080118 +/-    0.0010
Ecliptic Y          -22.45785866 +/-    0.0006
Ecliptic Z            3.46938880 +/-    0.0001
Ecliptic XDOT         0.00141951 +/-    0.0000
Ecliptic YDOT        -0.00227598 +/-    0.0000
Ecliptic ZDOT        -0.00016996 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.31105486 +/-    0.0009
Geocenter to KBO     41.42591750 +/-    0.0011
# Hcoef:  6.14

The following table shows the complete astrometric record for 14GZ53. 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 (14GZ53) followed by the observatory code and reference code for the source of the astrometry.

2012 05  21.34818  14 04 08.547  -07 29 21.09  22.5w 14GZ53    F51  C~1vXN      
2012 05  21.34884  14 04 08.546  -07 29 20.93  22.4w 14GZ53    F51  C~1vXN      
2012 05  21.36269  14 04 08.487  -07 29 20.88  22.6w 14GZ53    F51  C~1vXN      
2012 05  21.36335  14 04 08.490  -07 29 20.81  22.4w 14GZ53    F51  C~1vXN      
2012 05  21.37720  14 04 08.447  -07 29 20.52  22.4w 14GZ53    F51  C~1vXN      
2012 05  21.37785  14 04 08.423  -07 29 20.62  22.4w 14GZ53    F51  C~1vXN      
2012 05  21.39173  14 04 08.361  -07 29 20.55  22.6w 14GZ53    F51  C~1vXN      
2013 04  10.42700  14 12 13.329  -08 16 47.98  22.6w 14GZ53    F51  C~1vXN      
2013 04  10.44063  14 12 13.277  -08 16 47.90  22.4w 14GZ53    F51  C~1vXN      
2013 04  10.45435  14 12 13.211  -08 16 47.59  22.6w 14GZ53    F51  C~1vXN      
2013 04  10.46800  14 12 13.152  -08 16 46.96  22.4w 14GZ53    F51  C~1vXN      
2014 04  05.52255  14 17 39.446  -08 51 02.17  22.3w 14GZ53    F51  C~1vXN      
2014 04  05.53312  14 17 39.393  -08 51 01.94  22.5w 14GZ53    F51  C~1vXN      
2014 04  05.55423  14 17 39.312  -08 51 01.43  22.4w 14GZ53    F51  C~1vXN      
2014 05  27.33570  14 13 51.549  -08 32 39.00  22.8w 14GZ53    F51  C~1vXN      
2014 05  27.34680  14 13 51.519  -08 32 38.67  22.5w 14GZ53    F51  C~1vXN      
2014 05  27.35789  14 13 51.443  -08 32 38.73  22.4w 14GZ53    F51  C~1vXN      
2014 05  27.36900  14 13 51.408  -08 32 38.48  22.7w 14GZ53    F51  C~1vXN      
2014 06  28.28748  14 12 19.139  -08 27 47.52  22.7w 14GZ53    F51  C~1vXN      
2014 06  28.29823  14 12 19.121  -08 27 47.49  22.6w 14GZ53    F51  C~1vXN      
2014 06  28.30895  14 12 19.093  -08 27 47.65  22.7w 14GZ53    F51  C~1vXN      
2014 06  28.31968  14 12 19.078  -08 27 47.49  22.4w 14GZ53    F51  C~1vXN      
2015 04  23.39143  14 21 26.347  -09 16 10.09  22.3w 14GZ53    F51  C~1vXN      
2015 04  23.40393  14 21 26.285  -09 16 10.19  22.3w 14GZ53    F51  C~1vXN      
2015 04  23.41644  14 21 26.220  -09 16 09.69  22.6w 14GZ53    F51  C~1vXN      
2015 04  23.42893  14 21 26.174  -09 16 09.38  22.0w 14GZ53    F51  C~1vXN      
2015 04  25.45626  14 21 16.854  -09 15 23.05  22.4w 14GZ53    F51  C~1vXN      
2015 04  25.46849  14 21 16.778  -09 15 22.59  22.2w 14GZ53    F51  C~1vXN      
2015 04  25.48058  14 21 16.721  -09 15 22.42  22.3w 14GZ53    F51  C~1vXN      
2015 04  25.49310  14 21 16.665  -09 15 22.08  22.2w 14GZ53    F51  C~1vXN      

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    -0.01       0.00    -0.01
  2   0.0000     -0.07    -0.04       0.15     0.13
  3   0.0000     -0.91    -0.02      -0.11    -0.05
  4   0.0000     -0.89     0.04      -0.03     0.03
  5   0.0001     -1.59     0.20       0.03     0.15
  6   0.0001     -1.89    -0.06      -0.19    -0.07
  7   0.0001     -2.78    -0.08      -0.44    -0.25
  8   0.8873   7745.34    -0.15    -230.04     0.08
  9   0.8873   7744.59     0.06    -230.23    -0.11
 10   0.8874   7743.56     0.01    -230.26    -0.15
 11   0.8874   7742.52    -0.06    -229.97     0.15
 12   1.8732  13005.02     0.10    -541.08     0.08
 13   1.8732  13004.20     0.00    -541.13     0.03
 14   1.8733  13002.90     0.14    -541.05     0.09
 15   2.0150   9440.99     0.01    -634.73    -0.02
 16   2.0151   9440.46     0.15    -634.57     0.20
 17   2.0151   9439.42    -0.22    -635.01    -0.18
 18   2.0151   9438.84    -0.13    -634.94    -0.06
 19   2.1025   8049.53     0.04    -822.26     0.10
 20   2.1025   8049.27     0.06    -822.32     0.12
 21   2.1026   8048.93     0.01    -822.61    -0.10
 22   2.1026   8048.67     0.03    -822.53     0.06
 23   2.9214  16695.54    -0.02    -845.27     0.12
 24   2.9214  16694.70     0.06    -845.67    -0.27
 25   2.9215  16693.62    -0.10    -845.51    -0.10
 26   2.9215  16692.87     0.07    -845.45    -0.01
 27   2.9271  16546.39     0.20    -847.49    -0.01
 28   2.9271  16545.17    -0.12    -847.43     0.07
 29   2.9271  16544.31    -0.09    -847.55    -0.03
 30   2.9272  16543.41    -0.07    -847.50     0.03

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.

14GZ53    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.640    43.654    43.627
ecceobj         0.031     0.031     0.030
incobj          5.939     5.939     5.938
qmin           41.754    41.820    41.775
qmax           46.325    46.334    46.244
amean          43.953    43.967    43.939
amin           43.616    43.624    43.603
amax           44.300    44.313    44.287
emean           0.031     0.031     0.031
emin            0.016     0.016     0.015
emax            0.046     0.046     0.045
imean           4.173     4.173     4.173
imin            3.571     3.573     3.567
imax            4.780     4.777     4.779
excite_mean     0.079     0.079     0.079
fracstop        1.000     1.000     1.000
cjmean          3.093     3.094     3.093

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       180.5     180.5     180.8
kozaiamp        179.9     180.0     180.0