Orbit Fit and Astrometric record for 14NW65

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: 14NW65    
# Created Sun Oct 22 01:38:26 2017
# Orbit generated from Bernstein formalism
# Fitting   37 observations of   40
# Arc:   4.94y
# First observation: 2011/08/21
#  Last observation: 2016/07/30
Preliminary a, adot, b, bdot, g, gdot:
  -0.002605   0.037104   0.000001  -0.000383   0.040805   0.000000
# Chi-squared of fit:     9.91 DOF:   68 RMS:  0.09
# Min/Max residuals:    -0.36    0.34
# Exact a, adot, b, bdot, g, gdot:
  1.460514E-05  3.391603E-02 -1.583618E-07 -4.300429E-04  3.695043E-02 -1.934798E-02
# Covariance matrix:
  3.5415E-13 -1.9558E-13 -7.5217E-16  1.1407E-15 -9.3948E-14 -6.9474E-13
 -1.9558E-13  1.7779E-13  9.7204E-16 -1.4959E-15  1.2136E-13  9.0300E-13
 -7.5217E-16  9.7204E-16  2.6565E-13 -8.0478E-14  1.6944E-15  6.4010E-15
  1.1407E-15 -1.4959E-15 -8.0478E-14  2.8151E-14  6.4394E-16 -7.9244E-15
 -9.3948E-14  1.2136E-13  1.6944E-15  6.4394E-16  2.1958E-13  8.0391E-13
 -6.9474E-13  9.0300E-13  6.4010E-15 -7.9244E-15  8.0391E-13  5.4901E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   21.114324  -50.857255   -0.319623    0.344694   -0.892769  2455794.812776
# Heliocentric elements and errors
Epoch:              2455790.5000  =  2011/08/17
Mean Anomaly:          273.74676 +/-     0.012
Argument of Peri:      233.03625 +/-     0.005
Long of Asc Node:      216.07204 +/-     0.001
Inclination:            20.44590 +/-     0.000
Eccentricity:         0.51907781 +/-    0.0000
Semi-Major Axis:     23.16809553 +/-    0.0014
Time of Perihelion: 2465549.5339 +/-       1.0
Perihelion:          11.14205127 +/-    0.0009
Aphelion:            35.19413979 +/-    0.0022
Period (y)              111.5177 +/-      0.01
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           16.79291478 +/-    0.0002
Ecliptic Y          -20.12001391 +/-    0.0002
Ecliptic Z            9.74904557 +/-    0.0001
Ecliptic XDOT         0.00110900 +/-    0.0000
Ecliptic YDOT         0.00262011 +/-    0.0000
Ecliptic ZDOT        -0.00054609 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   27.96177455 +/-    0.0002
Geocenter to KBO     27.06328709 +/-    0.0003
# Hcoef:  6.76

The following table shows the complete astrometric record for 14NW65. 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 (14NW65) followed by the observatory code and reference code for the source of the astrometry.

2011 08  21.31201  20 24 27.674  +02 26 52.32  20.9r 14NW65    F51  C~1vXc      
2011 08  21.32301  20 24 27.602  +02 26 51.86  20.8r 14NW65    F51  C~1vXc      
2011 08  21.35863  20 24 27.370  +02 26 50.33  20.8i 14NW65    F51  C~1vXc      
2011 08  21.37074  20 24 27.293  +02 26 49.93  20.8i 14NW65    F51  C~1vXc      
2013 08  02.48206  20 42 21.739  +03 35 57.65  21.0g 14NW65    F51  C~1vXc      
2013 08  02.49469  20 42 21.641  +03 35 57.25  21.0g 14NW65    F51  C~1vXc      
2013 08  02.50727  20 42 21.544  +03 35 56.80  20.6r 14NW65    F51  C~1vXc      
2013 08  02.51842  20 42 21.459  +03 35 56.51  20.6r 14NW65    F51  C~1vXc      
2014 07  02.44579  20 54 25.049  +04 14 15.41  20.7w 14NW65    F51  C~1vXc      
2014 07  02.45788  20 54 24.974  +04 14 15.45  20.6w 14NW65    F51  C~1vXc      
2014 07  02.47000  20 54 24.894  +04 14 15.49  20.8w 14NW65    F51  C~1vXc      
2014 07  02.48215  20 54 24.822  +04 14 15.42  20.7w 14NW65    F51  C~1vXc      
2014 07  04.43960  20 54 12.736  +04 14 15.53  20.9w 14NW65    F51  C~1vXc      
2014 07  04.45163  20 54 12.658  +04 14 15.50  20.8w 14NW65    F51  C~1vXc      
2014 07  04.46368  20 54 12.583  +04 14 15.54  20.8w 14NW65    F51  C~1vXc      
2014 07  04.47578  20 54 12.507  +04 14 15.50  20.7w 14NW65    F51  C~1vXc      
2014 09  14.24288  20 46 03.395  +03 35 10.51  20.5w 14NW65    F51  C~1vXc      
2014 09  14.25425  20 46 03.335  +03 35 09.77  20.6w 14NW65    F51  C~1vXc      
2014 09  14.26563  20 46 03.283  +03 35 09.34  20.5w 14NW65    F51  C~1vXc      
2014 09  14.27701  20 46 03.219  +03 35 08.67  20.6w 14NW65    F51  C~1vXc      
2014 09  30.29651  20 44 55.900  +03 20 21.01  20.3i 14NW65    F51  C~1vXc      
2014 09  30.30806  20 44 55.859  +03 20 20.44  20.4i 14NW65    F51  C~1vXc      
2014 09  30.31963  20 44 55.820  +03 20 19.66  20.5i 14NW65    F51  C~1vXc      
2014 09  30.39387  20 44 55.572  +03 20 15.66  20.5i 14NW65    F51  C~1vXc      
2014 10  12.26977  20 44 27.405  +03 09 27.20  20.5i 14NW65    F51  C~1vXc      
2014 10  12.28306  20 44 27.381  +03 09 26.10  20.7i 14NW65    F51  C~1vXc      
2014 10  12.29791  20 44 27.380  +03 09 25.46  20.5i 14NW65    F51  C~1vXc      
2014 10  12.31117  20 44 27.309  +03 09 24.83  20.6i 14NW65    F51  C~1vXc      
2015 06  12.53830  21 04 54.406  +04 41 22.39  20.5i 14NW65    F51  C~1vXc      
2015 06  12.55134  21 04 54.352  +04 41 22.70  20.4i 14NW65    F51  C~1vXc      
2015 06  12.56439  21 04 54.307  +04 41 22.95  20.4i 14NW65    F51  C~1vXc      
2015 06  12.57747  21 04 54.255  +04 41 23.31  20.5i 14NW65    F51  C~1vXc      
2015 07  15.42129  21 01 51.654  +04 44 45.14  20.6w 14NW65    F51  C~1vXc      
2015 07  15.43330  21 01 51.585  +04 44 44.92  20.5w 14NW65    F51  C~1vXc      
2015 07  15.44521  21 01 51.491  +04 44 44.80  20.6w 14NW65    F51  C~1vXc      
2015 07  15.45743  21 01 51.404  +04 44 44.71  20.6w 14NW65    F51  C~1vXc      
2016 07  30.95753  21 09 09.12   +05 12 22.3   20.0R 14NW65    157  C~1wCo      
2016 07  30.97832  21 09 08.97   +05 12 21.0   19.8R 14NW65    157  C~1wCo      
2017 07  24.73750  21 19 44.21   +05 49 05.7   20.8R 14NW65    D29  C~2ICQ      
2017 07  24.75164  21 19 44.01   +05 49 06.1   20.5R 14NW65    D29  C~2ICQ      

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    -0.02       0.00    -0.01
  2   0.0000     -1.16    -0.03      -0.17    -0.01
  3   0.0001     -4.91    -0.04      -0.78    -0.08
  4   0.0002     -6.13     0.02      -0.88     0.01
  5   1.9498  16649.75     0.16       0.91     0.05
  6   1.9498  16648.22     0.10       0.88     0.04
  7   1.9499  16646.69     0.03       0.81    -0.03
  8   1.9499  16645.38     0.01       0.84     0.02
  9   2.8642  27837.94     0.01    -434.31     0.03
 10   2.8642  27836.85     0.02    -434.00     0.06
 11   2.8642  27835.67    -0.04    -433.66     0.10
 12   2.8643  27834.59    -0.01    -433.46     0.01
 13   2.8696  27656.11    -0.04    -388.83     0.03
 14   2.8696  27654.95    -0.07    -388.57     0.02
 15   2.8697  27653.85    -0.03    -388.26     0.06
 16   2.8697  27652.72    -0.02    -388.02     0.03
 17   3.0662  19878.94    -0.05    -867.86     0.06
 18   3.0662  19877.87    -0.08    -868.36    -0.06
 19   3.0663  19877.00     0.08    -868.58     0.10
 20   3.0663  19875.90     0.01    -869.00     0.06
 21   3.1102  18669.80     0.03   -1482.88    -0.02
 22   3.1102  18669.06     0.01   -1483.28     0.06
 23   3.1102  18668.29    -0.03   -1483.89    -0.07
 24   3.1104  18663.67    -0.03   -1486.86     0.06
 25   3.1429  18090.36     0.08   -2012.89     0.08
 26   3.1430  18089.74    -0.05   -2013.88    -0.29
 27   3.1430  18089.57     0.34   -2014.49    -0.24
 28   3.1431  18088.37    -0.36   -2014.84     0.02
 29   3.8090  37605.00    -0.06   -1148.30    -0.06
 30   3.8090  37604.27    -0.09   -1147.80    -0.04
 31   3.8090  37603.65    -0.01   -1147.39    -0.12
 32   3.8091  37602.96     0.01   -1146.84    -0.06
 33   3.8990  34921.65    -0.06    -279.14     0.11
 34   3.8990  34920.57     0.16    -279.11    -0.03
 35   3.8991  34919.13     0.01    -278.88     0.02
 36   3.8991  34917.81     0.01    -278.65     0.07
 37   4.9436  41899.97 (   0.08)   -239.78 (   0.75)
 38   4.9436  41897.38     0.06    -240.52    -0.01
 39   5.9259  52141.81 (   0.25)   -346.30 (  -0.35)
 40   5.9259  52138.83 (  -1.01)   -345.18 (   0.68)

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.

14NW65    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        23.124    23.127    23.120
ecceobj         0.520     0.520     0.520
incobj         20.472    20.472    20.472
qmin           10.833    10.877    10.802
qmax           35.601    35.430    36.164
amean          22.317    22.324    22.811
amin           21.194    21.681    21.568
amax           23.388    23.306    23.605
emean           0.500     0.493     0.501
emin            0.450     0.453     0.471
emax            0.525     0.522     0.533
imean          20.939    21.189    20.461
imin           20.112    20.136    17.787
imax           23.692    23.089    21.891
excite_mean     0.615     0.611     0.611
fracstop        0.008     0.008     0.017
cjmean          2.747     2.752     2.734

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       280.4     289.5     210.1
kozaiamp         53.4      52.6     179.7