Orbit Fit and Astrometric record for 14GP53

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: 14GP53    
# Created Wed Oct 18 01:38:23 2017
# Orbit generated from Bernstein formalism
# Fitting   24 observations of   26
# Arc:   2.98y
# First observation: 2012/03/29
#  Last observation: 2015/03/22
Preliminary a, adot, b, bdot, g, gdot:
   0.000075   0.073607   0.000074  -0.001207   0.051710   0.000000
# Chi-squared of fit:    11.56 DOF:   42 RMS:  0.12
# Min/Max residuals:    -0.34    0.35
# Exact a, adot, b, bdot, g, gdot:
  2.335451E-05  7.326100E-02 -1.341284E-07 -1.316663E-03  4.910882E-02  1.750894E-03
# Covariance matrix:
  3.6697E-13 -3.0395E-13 -1.0334E-15  2.9648E-15 -9.8971E-14 -8.1691E-13
 -3.0395E-13  1.3399E-12  1.5687E-14 -1.6174E-14  1.1482E-12  5.8849E-12
 -1.0334E-15  1.5687E-14  3.2394E-13 -1.2912E-13  1.7494E-14  7.1727E-14
  2.9648E-15 -1.6174E-14 -1.2912E-13  6.3628E-14 -1.2283E-14 -7.4956E-14
 -9.8971E-14  1.1482E-12  1.7494E-14 -1.2283E-14  1.2098E-12  5.2625E-12
 -8.1691E-13  5.8849E-12  7.1727E-14 -7.4956E-14  5.2625E-12  2.7135E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   14.908728 -156.537125    0.249141    0.249595   -0.937535  2456015.959366
# Heliocentric elements and errors
Epoch:              2456010.5000  =  2012/03/24
Mean Anomaly:            2.93186 +/-     0.016
Argument of Peri:       88.82150 +/-     0.025
Long of Asc Node:      109.30561 +/-     0.001
Inclination:            14.26360 +/-     0.000
Eccentricity:         0.19912046 +/-    0.0000
Semi-Major Axis:     26.58218613 +/-    0.0020
Time of Perihelion: 2455602.8147 +/-       2.3
Perihelion:          21.28912896 +/-    0.0020
Aphelion:            31.87524330 +/-    0.0027
Period (y)              137.0548 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -19.03664000 +/-    0.0004
Ecliptic Y           -7.99114755 +/-    0.0002
Ecliptic Z            5.23899995 +/-    0.0001
Ecliptic XDOT         0.00151747 +/-    0.0000
Ecliptic YDOT        -0.00378789 +/-    0.0000
Ecliptic ZDOT        -0.00004572 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   21.30021648 +/-    0.0004
Geocenter to KBO     20.36293938 +/-    0.0005
# Hcoef:  8.73

The following table shows the complete astrometric record for 14GP53. 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 (14GP53) followed by the observatory code and reference code for the source of the astrometry.

2012 03  29.45860  13 48 45.243  +04 45 40.60  22.0w 14GP53    F51  C~1vXL      
2012 03  29.47295  13 48 45.128  +04 45 41.49  22.0w 14GP53    F51  C~1vXL      
2012 03  29.48732  13 48 45.023  +04 45 42.29  22.0w 14GP53    F51  C~1vXL      
2012 03  29.50184  13 48 44.899  +04 45 43.23  22.1w 14GP53    F51  C~1vXL      
2014 04  05.43282  14 18 50.436  +01 37 41.30  22.0w 14GP53    F51  C~1vXL      
2014 04  05.44505  14 18 50.343  +01 37 41.83  21.9w 14GP53    F51  C~1vXL      
2014 04  05.45731  14 18 50.255  +01 37 42.55  22.3w 14GP53    F51  C~1vXL      
2014 04  05.46957  14 18 50.158  +01 37 43.01  22.1w 14GP53    F51  C~1vXL      
2014 05  25.38370  14 12 12.601  +02 06 51.31  22.1w 14GP53    F51  C~1vXL      
2014 05  25.39673  14 12 12.508  +02 06 51.47  22.3w 14GP53    F51  C~1vXL      
2014 05  25.40976  14 12 12.421  +02 06 51.58  22.0w 14GP53    F51  C~1vXL      
2014 05  25.42287  14 12 12.326  +02 06 51.66  22.2w 14GP53    F51  C~1vXL      
2014 06  22.33382  14 09 43.523  +02 04 34.13  22.2w 14GP53    F51  C~1vXL      
2014 06  22.34667  14 09 43.504  +02 04 33.46  22.3w 14GP53    F51  C~1vXL      
2014 06  22.35956  14 09 43.432  +02 04 33.47  22.1w 14GP53    F51  C~1vXL      
2014 06  22.37247  14 09 43.417  +02 04 33.59  22.1w 14GP53    F51  C~1vXL      
2014 07  02.28276  14 09 17.067  +02 00 06.86  22.1w 14GP53    F51  C~1vXL      
2014 07  02.29564  14 09 17.025  +02 00 06.64  22.3w 14GP53    F51  C~1vXL      
2014 07  02.30846  14 09 17.006  +02 00 06.57  22.5w 14GP53    F51  C~1vXL      
2015 03  20.55319  14 35 53.085  -00 13 12.47  22.0w 14GP53    F51  C~1vXL      
2015 03  20.56629  14 35 53.029  -00 13 11.67  22.2w 14GP53    F51  C~1vXL      
2015 03  20.57943  14 35 52.943  -00 13 11.04  22.1w 14GP53    F51  C~1vXL      
2015 03  22.50536  14 35 42.069  -00 11 29.84  22.3w 14GP53    F51  C~1vXL      
2015 03  22.51900  14 35 41.992  -00 11 29.03  22.4w 14GP53    F51  C~1vXL      
2015 03  22.53270  14 35 41.909  -00 11 28.49  22.3w 14GP53    F51  C~1vXL      
2015 03  22.54645  14 35 41.804  -00 11 27.78  22.3w 14GP53    F51  C~1vXL      

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     0.05       0.00    -0.06
  2   0.0000     -1.93    -0.02       0.20    -0.01
  3   0.0001     -3.68     0.08       0.37     0.01
  4   0.0001     -5.75    -0.11       0.56     0.06
  5   2.0177  29485.79    -0.08    -476.37     0.04
  6   2.0178  29484.26    -0.01    -476.40    -0.05
  7   2.0178  29482.74     0.05    -476.22     0.06
  8   2.0178  29481.19     0.09    -476.34    -0.12
  9   2.1545  23197.52    -0.05   -1076.97    -0.06
 10   2.1545  23196.15    -0.06   -1077.34    -0.05
 11   2.1546  23194.88     0.03   -1077.72    -0.05
 12   2.1546  23193.51     0.04   -1078.18    -0.13
 13   2.2310  21150.71    -0.34   -2039.37     0.22
 14   2.2310  21150.69     0.19   -2040.10     0.00
 15   2.2311  21149.67    -0.28   -2040.49     0.12
 16   2.2311  21149.42 (   0.01)  -2040.46 (   0.67)
 17   2.2582  20879.05     0.35   -2436.68    -0.03
 18   2.2583  20878.54     0.05   -2437.12     0.07
 19   2.2583  20878.30 (   0.02)  -2437.30 (   0.43)
 20   2.9736  46778.84    -0.04    -932.16    -0.11
 21   2.9736  46777.71     0.19    -931.72     0.10
 22   2.9736  46776.20     0.05    -931.61    -0.02
 23   2.9789  46577.39    -0.00    -897.78     0.04
 24   2.9789  46575.94     0.02    -897.45     0.15
 25   2.9790  46574.52     0.07    -897.42    -0.03
 26   2.9790  46572.70    -0.27    -897.34    -0.17

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.

14GP53    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        26.584    26.587    26.580
ecceobj         0.199     0.199     0.198
incobj         14.259    14.259    14.259
qmin           21.142    20.857    20.292
qmax           32.364    32.672    33.277
amean          26.810    26.704    26.676
amin           26.366    26.391    26.180
amax           28.104    27.379    27.502
emean           0.183     0.196     0.202
emin            0.123     0.174     0.174
emax            0.207     0.216     0.238
imean          13.058    12.670    12.396
imin           12.670    12.136    10.946
imax           14.237    13.040    13.118
excite_mean     0.292     0.294     0.295
fracstop        0.015     0.026     0.026
cjmean          2.928     2.927     2.927

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       149.6     197.2     194.3
kozaiamp         56.5     111.2     107.8