Orbit Fit and Astrometric record for 14WZ509

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: 14WZ509   
# Created Mon Dec 18 02:38:07 2017
# Orbit generated from Bernstein formalism
# Fitting   49 observations of   50
# Arc:   3.16y
# First observation: 2012/01/24
#  Last observation: 2015/03/22
Preliminary a, adot, b, bdot, g, gdot:
  -0.000031   0.020753   0.000001  -0.002630   0.022970   0.000000
# Chi-squared of fit:    21.53 DOF:   92 RMS:  0.12
# Min/Max residuals:    -0.46    0.26
# Exact a, adot, b, bdot, g, gdot:
  1.427696E-05  2.077843E-02 -1.963361E-06 -2.631066E-03  2.321273E-02  3.837685E-05
# Covariance matrix:
  1.8106E-13 -1.4857E-13 -3.0512E-15  1.1574E-14 -6.6609E-14 -1.4035E-12
 -1.4857E-13  5.6837E-13  1.8398E-14 -7.0851E-14  5.2199E-13  8.4197E-12
 -3.0512E-15  1.8398E-14  1.6404E-13 -5.9672E-14  1.8004E-14  2.8503E-13
  1.1574E-14 -7.0851E-14 -5.9672E-14  3.3865E-14 -7.0941E-14 -1.0985E-12
 -6.6609E-14  5.2199E-13  1.8004E-14 -7.0941E-14  6.9202E-13  8.1750E-12
 -1.4035E-12  8.4197E-12  2.8503E-13 -1.0985E-12  8.1750E-12  1.3041E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
  -14.470045  133.873910    0.172582   -0.242277   -0.938960  2455950.861326
# Heliocentric elements and errors
Epoch:              2455950.5000  =  2012/01/24
Mean Anomaly:          180.22918 +/-     0.307
Argument of Peri:       63.26677 +/-     0.307
Long of Asc Node:      251.07916 +/-     0.002
Inclination:            15.86393 +/-     0.000
Eccentricity:         0.09226935 +/-    0.0001
Semi-Major Axis:     40.30022688 +/-    0.0032
Time of Perihelion: 2502613.8985 +/-      79.4
Perihelion:          36.58175127 +/-    0.0036
Aphelion:            44.01870249 +/-    0.0041
Period (y)              255.8406 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -29.45531610 +/-    0.0010
Ecliptic Y           30.88933719 +/-    0.0011
Ecliptic Z          -10.76462487 +/-    0.0004
Ecliptic XDOT        -0.00172042 +/-    0.0000
Ecliptic YDOT        -0.00174683 +/-    0.0000
Ecliptic ZDOT        -0.00030152 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.01867725 +/-    0.0010
Geocenter to KBO     43.07980812 +/-    0.0015
# Hcoef:  5.40

The following table shows the complete astrometric record for 14WZ509. 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 (14WZ509) followed by the observatory code and reference code for the source of the astrometry.

2012 01  24.36056  08 48 50.875  +02 46 25.80  21.8w 14WZ509   F51  C~1vXt      
2012 01  24.37451  08 48 50.807  +02 46 26.04  21.6w 14WZ509   F51  C~1vXt      
2012 01  24.38849  08 48 50.747  +02 46 26.23  21.8w 14WZ509   F51  C~1vXt      
2012 01  24.40252  08 48 50.679  +02 46 26.40  21.8w 14WZ509   F51  C~1vXt      
2012 02  13.36328  08 47 18.635  +02 52 26.68  21.8g 14WZ509   F51  C~1vXt      
2012 02  13.39023  08 47 18.494  +02 52 27.47  21.5r 14WZ509   F51  C~1vXt      
2012 02  13.40276  08 47 18.466  +02 52 27.72  21.8r 14WZ509   F51  C~1vXt      
2013 01  18.48598  08 53 39.332  +02 16 53.78  22.0w 14WZ509   F51  C~1vXt      
2013 01  18.50036  08 53 39.249  +02 16 53.87  21.6w 14WZ509   F51  C~1vXt      
2013 01  18.51476  08 53 39.201  +02 16 53.98  22.1w 14WZ509   F51  C~1vXt      
2013 01  18.52921  08 53 39.143  +02 16 54.23  22.0w 14WZ509   F51  C~1vXt      
2014 02  28.35173  08 55 02.859  +02 01 35.72  21.9w 14WZ509   F51  C~1vXt      
2014 02  28.36339  08 55 02.811  +02 01 36.02  21.9w 14WZ509   F51  C~1vXt      
2014 02  28.37607  08 55 02.761  +02 01 36.39  21.9w 14WZ509   F51  C~1vXt      
2014 02  28.38774  08 55 02.709  +02 01 36.78  21.9w 14WZ509   F51  C~1vXt      
2014 11  28.58630  09 05 11.218  +01 21 33.70  22.0w 14WZ509   F51  C~1vXt      
2014 11  28.59944  09 05 11.198  +01 21 33.40  22.0w 14WZ509   F51  C~1vXt      
2014 11  28.61263  09 05 11.173  +01 21 33.11  22.1w 14WZ509   F51  C~1vXt      
2014 11  28.62583  09 05 11.159  +01 21 33.15  22.2w 14WZ509   F51  C~1vXt      
2014 12  30.49561  09 03 49.388  +01 17 39.51  21.5i 14WZ509   F51  C~1vXt      
2014 12  30.50911  09 03 49.338  +01 17 39.63  21.4i 14WZ509   F51  C~1vXt      
2014 12  30.52267  09 03 49.272  +01 17 39.40  21.5i 14WZ509   F51  C~1vXt      
2014 12  30.53625  09 03 49.236  +01 17 39.22  21.4i 14WZ509   F51  C~1vXt      
2015 01  15.42179  09 02 45.319  +01 19 09.98  21.7w 14WZ509   F51  C~1vXt      
2015 01  15.43371  09 02 45.268  +01 19 10.11  21.9w 14WZ509   F51  C~1vXt      
2015 01  15.44563  09 02 45.216  +01 19 10.26  21.8w 14WZ509   F51  C~1vXt      
2015 01  15.45761  09 02 45.162  +01 19 10.34  21.8w 14WZ509   F51  C~1vXt      
2015 01  17.51956  09 02 36.144  +01 19 31.76  21.8w 14WZ509   F51  C~1vXt      
2015 01  17.53261  09 02 36.093  +01 19 31.75  21.8w 14WZ509   F51  C~1vXt      
2015 01  17.54588  09 02 36.026  +01 19 32.04  21.8w 14WZ509   F51  C~1vXt      
2015 01  17.55877  09 02 35.964  +01 19 32.15  21.8w 14WZ509   F51  C~1vXt      
2015 01  21.38727  09 02 18.923  +01 20 17.55  21.6w 14WZ509   F51  C~1vXt      
2015 01  21.40216  09 02 18.867  +01 20 17.71  21.7w 14WZ509   F51  C~1vXt      
2015 01  21.41554  09 02 18.814  +01 20 17.84  21.8w 14WZ509   F51  C~1vXt      
2015 01  21.42896  09 02 18.745  +01 20 18.03  21.7w 14WZ509   F51  C~1vXt      
2015 01  23.39873  09 02 09.848  +01 20 44.11  21.6w 14WZ509   F51  C~1vXt      
2015 01  23.41215  09 02 09.788  +01 20 44.33  21.7w 14WZ509   F51  C~1vXt      
2015 01  23.42547  09 02 09.724  +01 20 44.57  21.8w 14WZ509   F51  C~1vXt      
2015 01  23.43882  09 02 09.666  +01 20 44.64  21.8w 14WZ509   F51  C~1vXt      
2015 01  25.38260  09 02 00.819  +01 21 12.08  21.9w 14WZ509   F51  C~1vXt      
2015 01  25.39570  09 02 00.761  +01 21 12.34  21.7w 14WZ509   F51  C~1vXt      
2015 01  25.40875  09 02 00.697  +01 21 12.44  21.7w 14WZ509   F51  C~1vXt      
2015 01  25.42178  09 02 00.641  +01 21 12.80  21.8w 14WZ509   F51  C~1vXt      
2015 02  20.29628  09 00 02.829  +01 29 38.83  21.9w 14WZ509   F51  C~1vXt      
2015 02  20.30997  09 00 02.769  +01 29 39.61  21.8w 14WZ509   F51  C~1vXt      
2015 02  20.36179  09 00 02.568  +01 29 41.81  22.3w 14WZ509   F51  C~1vXt      
2015 03  22.25379  08 58 12.822  +01 42 30.42  21.9w 14WZ509   F51  C~1vXt      
2015 03  22.26754  08 58 12.793  +01 42 30.79  21.8w 14WZ509   F51  C~1vXt      
2015 03  22.28131  08 58 12.763  +01 42 31.17  22.0w 14WZ509   F51  C~1vXt      
2015 03  22.29506  08 58 12.724  +01 42 31.47  21.7w 14WZ509   F51  C~1vXt      

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    -0.03       0.00     0.04
  2   0.0000     -1.05    -0.07      -0.05     0.06
  3   0.0001     -1.96     0.01      -0.12     0.08
  4   0.0001     -2.99    -0.01      -0.23     0.04
  5   0.0548  -1427.87     0.11     -34.33    -0.22
  6   0.0548  -1430.12    -0.21     -34.15    -0.09
  7   0.0549  -1430.59     0.22     -34.03     0.02
  8   0.9860   4644.85    -0.04    -507.95     0.07
  9   0.9860   4643.63    -0.26    -508.21    -0.08
 10   0.9860   4642.91     0.01    -508.31    -0.07
 11   0.9861   4642.00     0.11    -508.31     0.04
 12   2.0972   6103.22     0.09   -1043.54     0.01
 13   2.0972   6102.44     0.08   -1043.45     0.02
 14   2.0972   6101.62     0.10   -1043.30     0.08
 15   2.0973   6100.76     0.01   -1043.14     0.15
 16   2.8452  15560.52     0.11    -817.53    -0.02
 17   2.8453  15560.31     0.11    -817.91    -0.11
 18   2.8453  15560.03     0.04    -818.29    -0.22
 19   2.8454  15559.82     0.03    -818.31     0.04
 20   2.9326  14441.29    -0.01   -1385.35     0.16
 21   2.9326  14440.53    -0.03   -1385.44     0.26
 22   2.9327  14439.64    -0.19   -1385.94    -0.05
 23   2.9327  14439.17     0.08   -1386.26    -0.18
 24   2.9762  13488.93     0.03   -1565.90     0.02
 25   2.9762  13488.16     0.05   -1565.99     0.03
 26   2.9763  13487.36     0.05   -1566.06     0.07
 27   2.9763  13486.56     0.05   -1566.21     0.03
 28   2.9820  13350.13     0.04   -1583.25     0.06
 29   2.9820  13349.40     0.19   -1583.47    -0.06
 30   2.9820  13348.34     0.04   -1583.47     0.05
 31   2.9821  13347.42    -0.01   -1583.62     0.00
 32   2.9925  13088.26    -0.19   -1611.06     0.03
 33   2.9926  13087.41    -0.00   -1611.14     0.05
 34   2.9926  13086.61     0.12   -1611.24     0.05
 35   2.9927  13085.56     0.01   -1611.34     0.03
 36   2.9981  12949.61    -0.03   -1623.38     0.03
 37   2.9981  12948.68    -0.01   -1623.41     0.07
 38   2.9981  12947.68    -0.06   -1623.45     0.11
 39   2.9982  12946.83     0.02   -1623.63     0.02
 40   3.0035  12811.23    -0.03   -1634.14    -0.07
 41   3.0035  12810.32    -0.01   -1634.13     0.01
 42   3.0036  12809.37    -0.03   -1634.30    -0.09
 43   3.0036  12808.46    -0.01   -1634.19     0.09
 44   3.0744  10964.61    -0.34   -1638.59    -0.25
 45   3.0745  10963.53    -0.46   -1638.09     0.19
 46   3.0746  10960.01 (  -0.33)  -1636.81 (   1.25)
 47   3.1564   9161.38    -0.11   -1354.65    -0.18
 48   3.1565   9160.86     0.04   -1354.42    -0.13
 49   3.1565   9160.32     0.17   -1354.18    -0.07
 50   3.1566   9159.68     0.20   -1354.05    -0.13

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.

14WZ509    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        40.327    40.336    40.318
ecceobj         0.093     0.092     0.093
incobj         15.850    15.850    15.850
qmin           35.851    35.879    35.825
qmax           44.972    45.007    45.013
amean          40.300    40.309    40.286
amin           39.980    39.988    39.957
amax           40.634    40.651    40.630
emean           0.090     0.090     0.090
emin            0.075     0.073     0.074
emax            0.107     0.107     0.109
imean          17.853    17.842    17.861
imin           16.744    16.730    16.749
imax           18.719    18.703    18.724
excite_mean     0.320     0.319     0.320
fracstop        1.000     1.000     1.000
cjmean          2.939     2.939     2.939

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       176.8     177.0     176.7
kozaiamp        180.0     180.0     180.0