Orbit Fit and Astrometric record for 14PQ70

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: 14PQ70    
# Created Thu Oct 19 01:38:26 2017
# Orbit generated from Bernstein formalism
# Fitting   26 observations of   29
# Arc:   1.05y
# First observation: 2013/08/04
#  Last observation: 2014/08/23
Preliminary a, adot, b, bdot, g, gdot:
   0.000926   0.598954  -0.001233   0.136700   0.192960   0.000000
# WARNING MRQMIN stopped after  13 iterations -- oscilliatory solution
# Chi-squared of fit:  9999.99 DOF:   46 RMS: 34.59
# Min/Max residuals:   -17.38   59.83
# Exact a, adot, b, bdot, g, gdot:
  1.574175E-05  5.006698E-01 -1.335833E-04  1.146606E-01  1.735147E-01 -1.069105E-01
# Covariance matrix:
  2.3778E-13 -1.1673E-12  8.7238E-15 -2.3910E-13  1.9165E-13 -1.6539E-12
 -1.1673E-12  8.0344E-10 -8.7252E-12  1.9472E-10  1.3678E-10  1.3361E-09
  8.7238E-15 -8.7252E-12  2.4078E-13 -2.2604E-12 -1.4954E-12 -1.4515E-11
 -2.3910E-13  1.9472E-10 -2.2604E-12  4.7411E-11  3.3194E-11  3.2390E-10
  1.9165E-13  1.3678E-10 -1.4954E-12  3.3194E-11  2.4770E-11  2.2771E-10
 -1.6539E-12  1.3361E-09 -1.4515E-11  3.2390E-10  2.2771E-10  2.2225E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
   -8.614213  -44.071036    0.070637   -0.151858   -1.002586  2456508.950698
# Heliocentric elements and errors
Epoch:              2456500.5000  =  2013/07/27
Mean Anomaly:          352.78143 +/-     0.003
Argument of Peri:        3.21515 +/-     0.015
Long of Asc Node:      344.06988 +/-     0.000
Inclination:            14.99425 +/-     0.000
Eccentricity:         0.59110340 +/-    0.0000
Semi-Major Axis:     15.56768661 +/-    0.0014
Time of Perihelion: 2456950.3660 +/-       0.2
Perihelion:           6.36557410 +/-    0.0009
Aphelion:            24.76979913 +/-    0.0024
Period (y)               61.4249 +/-      0.01
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X            4.77335739 +/-    0.0001
Ecliptic Y           -4.71677253 +/-    0.0001
Ecliptic Z           -0.86392741 +/-    0.0000
Ecliptic XDOT         0.00448494 +/-    0.0000
Ecliptic YDOT         0.00664672 +/-    0.0000
Ecliptic ZDOT         0.00204160 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO    6.76603683 +/-    0.0001
Geocenter to KBO      5.76319925 +/-    0.0002
# Hcoef: 13.98

The following table shows the complete astrometric record for 14PQ70. 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 (14PQ70) followed by the observatory code and reference code for the source of the astrometry.

2013 08  04.44992  21 24 45.395  -24 15 57.66  22.3w 14PQ70    F51  C~1vXh      
2013 08  04.46382  21 24 45.057  -24 15 58.69  22.4w 14PQ70    F51  C~1vXh      
2013 08  04.47775  21 24 44.713  -24 15 59.32  22.5w 14PQ70    F51  C~1vXh      
2013 08  04.49162  21 24 44.384  -24 15 59.89  22.2w 14PQ70    F51  C~1vXh      
2013 08  29.35372  21 14 59.451  -24 25 30.22  22.1w 14PQ70    F51  C~1vXh      
2013 08  29.35438  21 14 59.452  -24 25 30.16  22.5w 14PQ70    F51  C~1vXh      
2013 08  29.36756  21 14 59.141  -24 25 30.06  22.4w 14PQ70    F51  C~1vXh      
2013 08  29.36822  21 14 59.130  -24 25 30.41  22.7w 14PQ70    F51  C~1vXh      
2013 08  29.38139  21 14 58.833  -24 25 29.96  22.3w 14PQ70    F51  C~1vXh      
2013 08  29.39520  21 14 58.530  -24 25 30.19  22.2w 14PQ70    F51  C~1vXh      
2013 08  29.39586  21 14 58.495  -24 25 30.21  22.5w 14PQ70    F51  C~1vXh      
2014 08  03.53335  23 12 31.579  -05 59 43.89  22.0w 14PQ70    F51  C~1vXh      
2014 08  03.54467  23 12 31.401  -05 59 43.99  21.8w 14PQ70    F51  C~1vXh      
2014 08  03.55596  23 12 31.226  -05 59 44.08  22.0w 14PQ70    F51  C~1vXh      
2014 08  03.56729  23 12 31.052  -05 59 44.22  22.2w 14PQ70    F51  C~1vXh      
2014 08  05.52602  23 12 01.245  -06 00 01.33  22.1w 14PQ70    F51  C~1vXh      
2014 08  05.53741  23 12 01.071  -06 00 01.07  22.4w 14PQ70    F51  C~1vXh      
2014 08  05.54879  23 12 00.859  -06 00 01.31  22.0w 14PQ70    F51  C~1vXh      
2014 08  20.47383  23 07 25.054  -06 06 23.81  21.7w 14PQ70    F51  C~1vXh      
2014 08  20.48601  23 07 24.796  -06 06 24.35  21.8w 14PQ70    F51  C~1vXh      
2014 08  20.49820  23 07 24.535  -06 06 24.78  21.8w 14PQ70    F51  C~1vXh      
2014 08  20.51039  23 07 24.271  -06 06 25.21  21.8w 14PQ70    F51  C~1vXh      
2014 08  23.48430  23 06 20.958  -06 08 23.96  21.8w 14PQ70    F51  C~1vXh      
2014 08  23.49589  23 06 20.690  -06 08 24.46  22.0w 14PQ70    F51  C~1vXh      
2014 08  23.50748  23 06 20.427  -06 08 24.67  21.8w 14PQ70    F51  C~1vXh      
2014 08  23.51910  23 06 20.190  -06 08 25.47  21.9w 14PQ70    F51  C~1vXh      
2014 09  24.38829  22 54 19.419  -06 32 34.60  21.9w 14PQ70    F51  C~1vXh      
2014 09  24.41401  22 54 18.866  -06 32 35.47  21.8w 14PQ70    F51  C~1vXh      
2014 09  24.42684  22 54 18.618  -06 32 35.29  22.1w 14PQ70    F51  C~1vXh      

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     6.16       0.00    29.71
  2   0.0000     -4.71     6.07       0.47    29.32
  3   0.0001     -9.38     6.02       1.35    29.32
  4   0.0001    -13.83     6.17       2.22    29.32
  5   0.0682  -7804.22    -3.15    1899.19   -16.38
  6   0.0682  -7804.19    -2.93    1899.24   -16.39
  7   0.0682  -7808.22    -3.15    1900.60   -16.31
  8   0.0682  -7808.47    -3.21    1900.31   -16.67
  9   0.0683  -7812.22    -3.14    1901.95   -16.32
 10   0.0683  -7816.24    -3.17    1902.96   -16.67
 11   0.0683  -7816.70    -3.44    1903.08   -16.61
 12   0.9968 124138.61    51.78   27700.36   -17.36
 13   0.9968 124135.31    51.72   27701.50   -17.34
 14   0.9969 124132.08    51.71   27702.63   -17.33
 15   0.9969 124128.83    51.70   27703.70   -17.38
 16   1.0023 123577.04    55.13   27894.20   -12.58
 17   1.0023 123574.05    55.60   27895.71   -12.21
 18   1.0023 123570.05    55.06   27896.93   -12.12
 19   1.0432 118380.18    59.76   29393.12    26.91
 20   1.0432 118375.26    59.79   29394.31    26.83
 21   1.0433 118370.36    59.83   29395.63    26.89
 22   1.0433 118365.40    59.82   29396.98    26.96
 23   1.0514 117169.41    56.84   29701.43    35.35
 24   1.0515 117164.36    56.64   29702.71    35.43
 25   1.0515 117159.57    56.71   29704.28    35.79
 26   1.0515 117154.89    56.89   29705.03    35.33
 27   1.1388 103840.45 ( -25.41)  32935.87 ( 131.22)
 28   1.1388 103830.61 ( -25.41)  32938.52 ( 131.33)
 29   1.1389 103826.51 ( -24.60)  32940.31 ( 131.85)

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.

14PQ70    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        16.086    16.086    16.086
ecceobj         0.615     0.615     0.615
incobj         15.057    15.057    15.057
qmin            6.201     6.114     6.044
qmax           28.724    38.601    30.261
amean          16.264    19.240    15.165
amin           13.999    15.941    14.182
amax           17.661    22.463    18.220
emean           0.604     0.672     0.584
emin            0.552     0.607     0.539
emax            0.635     0.718     0.661
imean          17.286    16.309    16.503
imin           15.836    15.835    15.746
imax           19.207    17.434    17.672
excite_mean     0.673     0.729     0.650
fracstop        0.001     0.002     0.001
cjmean          2.976     2.712     3.095

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        58.3      48.1      52.7
kozaiamp         40.8      29.0      39.2