Orbit Fit and Astrometric record for 14JQ80

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: 14JQ80    
# Created Thu Oct 19 01:38:24 2017
# Orbit generated from Bernstein formalism
# Fitting   25 observations of   25
# Arc:   1.79y
# First observation: 2013/04/13
#  Last observation: 2015/01/26
Preliminary a, adot, b, bdot, g, gdot:
   0.000223   0.039144  -0.000026  -0.002741   0.031081   0.000000
# Chi-squared of fit:    14.07 DOF:   44 RMS:  0.13
# Min/Max residuals:    -0.34    0.28
# Exact a, adot, b, bdot, g, gdot:
  2.030536E-05  4.055003E-02 -1.826571E-06 -2.798172E-03  3.297937E-02  3.268463E-03
# Covariance matrix:
  3.6581E-13 -5.7096E-13 -7.1691E-15  2.5807E-14 -2.1979E-13 -4.8472E-12
 -5.7096E-13  5.9110E-12  3.6726E-14 -3.2652E-13  5.7013E-12  8.2253E-11
 -7.1691E-15  3.6726E-14  2.9970E-13 -2.3545E-13  2.4093E-14  5.2631E-13
  2.5807E-14 -3.2652E-13 -2.3545E-13  2.4578E-13 -3.1117E-13 -4.7180E-12
 -2.1979E-13  5.7013E-12  2.4093E-14 -3.1117E-13  6.0233E-12  8.2614E-11
 -4.8472E-12  8.2253E-11  5.2631E-13 -4.7180E-12  8.2614E-11  1.1902E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
    7.218985 -130.655073    0.435829    0.113743   -0.897825  2456395.975658
# Heliocentric elements and errors
Epoch:              2456390.5000  =  2013/04/08
Mean Anomaly:           14.03635 +/-     0.155
Argument of Peri:       96.42604 +/-     0.257
Long of Asc Node:      109.73104 +/-     0.004
Inclination:             7.98811 +/-     0.000
Eccentricity:         0.21620832 +/-    0.0003
Semi-Major Axis:     39.31057379 +/-    0.0039
Time of Perihelion: 2452880.4440 +/-      38.9
Perihelion:          30.81130083 +/-    0.0122
Aphelion:            47.80984675 +/-    0.0128
Period (y)              246.4747 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -20.51743679 +/-    0.0015
Ecliptic Y          -23.22178869 +/-    0.0017
Ecliptic Z            3.81030262 +/-    0.0003
Ecliptic XDOT         0.00235316 +/-    0.0000
Ecliptic YDOT        -0.00241924 +/-    0.0000
Ecliptic ZDOT        -0.00019622 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   31.22074772 +/-    0.0016
Geocenter to KBO     30.32198860 +/-    0.0023
# Hcoef:  7.31

The following table shows the complete astrometric record for 14JQ80. 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 (14JQ80) followed by the observatory code and reference code for the source of the astrometry.

2013 04  13.47488  15 15 32.311  -10 36 28.49  22.0w 14JQ80    F51  C~1vXU      
2013 04  13.48874  15 15 32.244  -10 36 28.42  22.2w 14JQ80    F51  C~1vXU      
2013 04  13.50265  15 15 32.175  -10 36 28.07  22.0w 14JQ80    F51  C~1vXU      
2013 04  13.51652  15 15 32.104  -10 36 27.52  21.7w 14JQ80    F51  C~1vXU      
2014 05  08.41962  15 22 07.015  -11 11 46.23  21.6i 14JQ80    F51  C~1vXU      
2014 05  08.43184  15 22 06.967  -11 11 45.71  21.7i 14JQ80    F51  C~1vXU      
2014 05  08.44407  15 22 06.896  -11 11 45.77  21.7i 14JQ80    F51  C~1vXU      
2014 05  08.45627  15 22 06.812  -11 11 45.34  21.6i 14JQ80    F51  C~1vXU      
2014 05  10.42953  15 21 54.732  -11 11 00.46  21.6i 14JQ80    F51  C~1vXU      
2014 05  10.44151  15 21 54.646  -11 11 00.07  21.6i 14JQ80    F51  C~1vXU      
2014 05  10.45349  15 21 54.596  -11 10 59.80  21.5i 14JQ80    F51  C~1vXU      
2014 05  22.41312  15 20 41.452  -11 06 46.55  22.0w 14JQ80    F51  C~1vXU      
2014 05  22.42691  15 20 41.382  -11 06 46.17  22.1w 14JQ80    F51  C~1vXU      
2014 05  22.45379  15 20 41.211  -11 06 45.61  22.0w 14JQ80    F51  C~1vXU      
2014 05  24.36642  15 20 29.683  -11 06 09.00  22.1w 14JQ80    F51  C~1vXU      
2014 05  24.37906  15 20 29.601  -11 06 08.86  21.8w 14JQ80    F51  C~1vXU      
2014 05  24.43312  15 20 29.264  -11 06 07.79  22.0w 14JQ80    F51  C~1vXU      
2014 05  24.44575  15 20 29.187  -11 06 07.69  21.9w 14JQ80    F51  C~1vXU      
2014 06  21.34533  15 17 59.229  -10 59 57.33  22.3w 14JQ80    F51  C~1vXU      
2014 06  21.35798  15 17 59.173  -10 59 56.91  22.5w 14JQ80    F51  C~1vXU      
2014 06  21.37059  15 17 59.111  -10 59 56.88  22.4w 14JQ80    F51  C~1vXU      
2015 01  26.65031  15 34 24.646  -12 22 54.13  22.2w 14JQ80    F51  C~1vXU      
2015 01  26.65362  15 34 24.662  -12 22 54.35  22.6w 14JQ80    F51  C~1vXU      
2015 01  26.65693  15 34 24.664  -12 22 54.13  22.6w 14JQ80    F51  C~1vXU      
2015 01  26.66025  15 34 24.686  -12 22 54.01  22.2w 14JQ80    F51  C~1vXU      

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    -0.18       0.00     0.10
  2   0.0000     -0.97     0.00      -0.19    -0.16
  3   0.0001     -2.04     0.08      -0.12    -0.15
  4   0.0001     -3.20     0.08       0.13     0.04
  5   1.0676   6166.78    -0.31    -526.72    -0.06
  6   1.0676   6165.96     0.03    -526.40     0.28
  7   1.0677   6164.96     0.19    -526.72    -0.03
  8   1.0677   6163.66     0.04    -526.63     0.08
  9   1.0731   5980.18    -0.04    -529.22    -0.17
 10   1.0731   5978.86    -0.23    -529.17    -0.10
 11   1.0732   5978.08     0.12    -529.10    -0.01
 12   1.1059   4871.99     0.01    -563.36     0.06
 13   1.1060   4870.90     0.19    -563.26     0.22
 14   1.1060   4868.32     0.11    -563.37     0.24
 15   1.1113   4694.86     0.07    -572.07     0.18
 16   1.1113   4693.66     0.03    -572.25     0.07
 17   1.1115   4688.59    -0.07    -572.50     0.09
 18   1.1115   4687.47    -0.03    -572.70    -0.04
 19   1.1879   2458.90     0.02    -790.73    -0.34
 20   1.1879   2458.00    -0.03    -790.54    -0.01
 21   1.1879   2457.11    -0.07    -790.75    -0.09
 22   1.7883  17767.68     0.00   -1917.93    -0.04
 23   1.7883  17767.96     0.10   -1918.09    -0.24
 24   1.7883  17767.94    -0.11   -1917.87    -0.05
 25   1.7883  17768.22    -0.02   -1917.67     0.11

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.

14JQ80    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.151    39.168    39.134
ecceobj         0.213     0.214     0.212
incobj          7.984     7.983     7.984
qmin           29.878    29.858    29.902
qmax           49.380    49.466    49.388
amean          39.455    39.456    39.455
amin           39.100    39.079    39.081
amax           39.897    39.910    39.907
emean           0.219     0.219     0.219
emin            0.195     0.194     0.196
emax            0.240     0.241     0.239
imean           6.004     6.034     5.978
imin            4.806     4.790     4.829
imax            7.297     7.375     7.180
excite_mean     0.243     0.243     0.243
fracstop        1.000     1.000     1.000
cjmean          2.984     2.984     2.985

libcent 0       179.7     180.7     180.4
libamp  0        37.9      40.2      39.0
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       174.7     172.1     176.2
kozaiamp        180.0     180.0     180.0