Orbit Fit and Astrometric record for 14JW80

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: 14JW80    
# Created Sun Dec 17 02:38:03 2017
# Orbit generated from Bernstein formalism
# Fitting   33 observations of   33
# Arc:   4.16y
# First observation: 2011/05/21
#  Last observation: 2015/07/19
Preliminary a, adot, b, bdot, g, gdot:
   0.000305   0.021300  -0.000137  -0.018173   0.024205   0.000000
# Chi-squared of fit:    13.42 DOF:   60 RMS:  0.11
# Min/Max residuals:    -0.30    0.24
# Exact a, adot, b, bdot, g, gdot:
  1.440257E-05  2.203709E-02 -1.151012E-05 -1.883837E-02  2.412324E-02  8.796850E-03
# Covariance matrix:
  1.8125E-13 -6.4274E-14 -2.2883E-15  2.0969E-14  9.7859E-14 -2.9794E-13
 -6.4274E-14  2.2568E-13  4.4869E-14 -1.9892E-13  5.4099E-14  2.7450E-12
 -2.2883E-15  4.4869E-14  1.5898E-13 -8.4189E-14  2.0804E-14  5.8968E-13
  2.0969E-14 -1.9892E-13 -8.4189E-14  2.0613E-13 -5.4321E-14 -2.6133E-12
  9.7859E-14  5.4099E-14  2.0804E-14 -5.4321E-14  3.7747E-13  7.1957E-13
 -2.9794E-13  2.7450E-12  5.8968E-13 -2.6133E-12  7.1957E-13  3.6063E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
    5.250104 -125.311944   -0.088221    0.092386   -1.006101  2455702.918536
# Heliocentric elements and errors
Epoch:              2455700.5000  =  2011/05/19
Mean Anomaly:            4.88549 +/-     0.007
Argument of Peri:      131.25694 +/-     0.018
Long of Asc Node:       60.76567 +/-     0.000
Inclination:            40.85259 +/-     0.000
Eccentricity:         0.72310414 +/-    0.0003
Semi-Major Axis:    137.62895616 +/-    0.1209
Time of Perihelion: 2447697.2036 +/-       2.1
Perihelion:          38.10888821 +/-    0.0498
Aphelion:           237.14902412 +/-    0.2115
Period (y)             1614.6297 +/-      2.13
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -24.36850760 +/-    0.0006
Ecliptic Y          -34.56079432 +/-    0.0009
Ecliptic Z            3.79274148 +/-    0.0001
Ecliptic XDOT         0.00135102 +/-    0.0000
Ecliptic YDOT        -0.00241074 +/-    0.0000
Ecliptic ZDOT        -0.00203768 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.45771490 +/-    0.0008
Geocenter to KBO     41.45380962 +/-    0.0011
# Hcoef:  5.74

The following table shows the complete astrometric record for 14JW80. 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 (14JW80) followed by the observatory code and reference code for the source of the astrometry.

2011 05  21.41777  15 34 34.165  -13 50 38.25  21.2i 14JW80    F51  C~1vXV      
2011 05  21.43428  15 34 34.079  -13 50 37.92  21.1i 14JW80    F51  C~1vXV      
2011 05  21.45295  15 34 33.976  -13 50 37.62  21.3r 14JW80    F51  C~1vXV      
2011 06  06.37768  15 33 16.747  -13 49 23.67  21.9w 14JW80    F51  C~1vXV      
2011 06  06.39595  15 33 16.657  -13 49 23.74  22.0w 14JW80    F51  C~1vXV      
2011 06  06.41040  15 33 16.593  -13 49 23.69  21.9w 14JW80    F51  C~1vXV      
2011 06  06.42481  15 33 16.535  -13 49 23.60  22.1w 14JW80    F51  C~1vXV      
2011 08  18.26736  15 30 25.645  -13 59 17.49  21.9w 14JW80    F51  C~1vXV      
2011 08  18.27201  15 30 25.658  -13 59 17.61  21.8w 14JW80    F51  C~1vXV      
2011 08  18.27663  15 30 25.660  -13 59 17.58  21.9w 14JW80    F51  C~1vXV      
2014 05  08.47583  15 47 29.219  -17 46 42.31  21.9w 14JW80    F51  C~1vXV      
2014 05  08.48795  15 47 29.153  -17 46 42.40  21.9w 14JW80    F51  C~1vXV      
2014 05  08.50007  15 47 29.097  -17 46 42.21  22.1w 14JW80    F51  C~1vXV      
2014 05  08.51217  15 47 29.037  -17 46 42.26  22.2w 14JW80    F51  C~1vXV      
2014 05  20.38567  15 46 30.418  -17 45 34.11  21.9w 14JW80    F51  C~1vXV      
2014 05  20.39697  15 46 30.360  -17 45 34.01  22.3w 14JW80    F51  C~1vXV      
2014 05  20.40827  15 46 30.305  -17 45 34.06  22.0w 14JW80    F51  C~1vXV      
2014 05  20.41956  15 46 30.243  -17 45 33.89  21.9w 14JW80    F51  C~1vXV      
2014 06  19.35205  15 44 09.119  -17 43 30.37  22.3w 14JW80    F51  C~1vXV      
2014 06  19.36264  15 44 09.069  -17 43 30.55  22.3w 14JW80    F51  C~1vXV      
2014 06  19.37323  15 44 08.997  -17 43 30.19  22.0w 14JW80    F51  C~1vXV      
2015 05  25.37900  15 50 02.406  -19 00 02.73  21.7i 14JW80    F51  C~1vXV      
2015 05  25.39028  15 50 02.345  -19 00 02.56  21.4i 14JW80    F51  C~1vXV      
2015 05  25.40163  15 50 02.268  -19 00 02.56  21.5i 14JW80    F51  C~1vXV      
2015 05  25.41293  15 50 02.197  -19 00 02.56  21.7i 14JW80    F51  C~1vXV      
2015 06  11.32078  15 48 40.830  -18 58 45.82  21.9w 14JW80    F51  C~1vXV      
2015 06  11.33197  15 48 40.770  -18 58 45.71  22.2w 14JW80    F51  C~1vXV      
2015 06  11.34319  15 48 40.720  -18 58 45.69  22.2w 14JW80    F51  C~1vXV      
2015 06  11.35439  15 48 40.671  -18 58 45.52  22.0w 14JW80    F51  C~1vXV      
2015 07  19.27823  15 46 23.890  -18 58 28.79  22.2w 14JW80    F51  C~1vXV      
2015 07  19.28951  15 46 23.873  -18 58 28.86  22.4w 14JW80    F51  C~1vXV      
2015 07  19.30047  15 46 23.832  -18 58 28.82  22.2w 14JW80    F51  C~1vXV      
2015 07  19.31128  15 46 23.824  -18 58 28.86  22.7w 14JW80    F51  C~1vXV      

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    -0.17
  2   0.0000     -1.30    -0.08       0.02     0.04
  3   0.0001     -2.82    -0.24      -0.04     0.19
  4   0.0437  -1113.06     0.02    -195.31     0.09
  5   0.0437  -1114.31     0.00    -195.69    -0.04
  6   0.0438  -1115.23     0.07    -195.86    -0.02
  7   0.0438  -1116.07     0.20    -195.98     0.06
  8   0.2433  -3389.90    -0.10   -1368.82    -0.13
  9   0.2433  -3389.69     0.05   -1368.89    -0.12
 10   0.2433  -3389.67     0.01   -1368.86    -0.01
 11   2.9653  14173.41     0.00  -11245.72     0.03
 12   2.9653  14172.51    -0.05  -11246.01    -0.15
 13   2.9653  14171.68    -0.02  -11246.00    -0.02
 14   2.9654  14170.85     0.01  -11246.24    -0.14
 15   2.9979  13334.61     0.05  -11365.14     0.09
 16   2.9979  13333.77     0.03  -11365.23     0.13
 17   2.9979  13333.01     0.09  -11365.45     0.02
 18   2.9980  13332.11    -0.01  -11365.48     0.11
 19   3.0799  11329.93     0.22  -11695.77     0.14
 20   3.0799  11329.27     0.21  -11696.10    -0.07
 21   3.0800  11328.18    -0.24  -11695.98     0.18
 22   4.0108  17302.43     0.24  -15092.85     0.03
 23   4.0109  17301.54     0.15  -15092.87     0.12
 24   4.0109  17300.46    -0.11  -15093.11     0.01
 25   4.0109  17299.47    -0.30  -15093.32    -0.09
 26   4.0572  16146.53     0.03  -15269.35    -0.07
 27   4.0573  16145.67    -0.09  -15269.42    -0.03
 28   4.0573  16144.97    -0.05  -15269.56    -0.04
 29   4.0573  16144.25    -0.03  -15269.54     0.10
 30   4.1612  14233.95    -0.08  -15680.64    -0.10
 31   4.1612  14233.73     0.07  -15680.76    -0.09
 32   4.1612  14233.15    -0.16  -15680.85    -0.06
 33   4.1612  14233.04     0.10  -15680.92    -0.00

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.

14JW80    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj       136.409   136.765   136.054
ecceobj         0.721     0.722     0.720
incobj         40.877    40.877    40.877
qmin           37.015    36.822    37.024
qmax          250.531   252.089   249.150
amean         139.563   139.720   138.199
amin          136.331   136.206   135.168
amax          144.617   145.016   143.707
emean           0.720     0.728     0.719
emin            0.710     0.719     0.708
emax            0.734     0.738     0.734
imean          40.390    39.670    40.267
imin           39.359    39.103    39.311
imax           41.269    40.293    41.144
excite_mean     0.969     0.968     0.967
fracstop        1.000     1.000     1.000
cjmean          2.491     2.490     2.491

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       155.4     146.5     153.1
kozaiamp         24.4      16.8      22.8