Orbit Fit and Astrometric record for 14DO143

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: 14DO143   
# Created Sun Oct 22 01:38:21 2017
# Orbit generated from Bernstein formalism
# Fitting   47 observations of   50
# Arc:   3.07y
# First observation: 2012/02/22
#  Last observation: 2015/03/19
Preliminary a, adot, b, bdot, g, gdot:
  -0.000106   0.023873  -0.000010   0.001145   0.023882   0.000000
# Chi-squared of fit:    28.25 DOF:   88 RMS:  0.14
# Min/Max residuals:    -0.48    0.35
# Exact a, adot, b, bdot, g, gdot:
  1.538119E-05  2.388007E-02  8.924928E-07  1.146012E-03  2.380104E-02 -9.366711E-04
# Covariance matrix:
  4.3847E-13 -4.4924E-13  9.9246E-15 -1.7155E-14 -2.7206E-13 -4.2617E-12
 -4.4924E-13  6.5214E-13 -1.6709E-14  2.8910E-14  4.5608E-13  7.1802E-12
  9.9246E-15 -1.6709E-14  2.2258E-13 -8.5388E-14 -1.3208E-14 -1.9617E-13
 -1.7155E-14  2.8910E-14 -8.5388E-14  3.8882E-14  2.1675E-14  3.3801E-13
 -2.7206E-13  4.5608E-13 -1.3208E-14  2.1675E-14  4.4352E-13  5.4532E-12
 -4.2617E-12  7.1802E-12 -1.9617E-13  3.3801E-13  5.4532E-12  8.4031E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   -3.205537  131.576814   -0.364870   -0.051517   -0.920115  2455979.923166
# Heliocentric elements and errors
Epoch:              2455970.5000  =  2012/02/13
Mean Anomaly:          345.73085 +/-     0.177
Argument of Peri:      329.12369 +/-     0.221
Long of Asc Node:      180.42974 +/-     0.005
Inclination:             4.19328 +/-     0.000
Eccentricity:         0.10340758 +/-    0.0002
Semi-Major Axis:     47.67845172 +/-    0.0045
Time of Perihelion: 2460736.7543 +/-      59.1
Perihelion:          42.74813851 +/-    0.0083
Aphelion:            52.60876493 +/-    0.0088
Period (y)              329.2239 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -28.72049472 +/-    0.0008
Ecliptic Y           31.82921486 +/-    0.0009
Ecliptic Z           -2.34936460 +/-    0.0001
Ecliptic XDOT        -0.00199308 +/-    0.0000
Ecliptic YDOT        -0.00189372 +/-    0.0000
Ecliptic ZDOT         0.00013774 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.93582711 +/-    0.0008
Geocenter to KBO     42.01497761 +/-    0.0012
# Hcoef:  5.58

The following table shows the complete astrometric record for 14DO143. 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 (14DO143) followed by the observatory code and reference code for the source of the astrometry.

2012 02  22.42240  08 52 29.304  +14 13 43.65  22.1w 14DO143   F51  C~1vXH      
2012 02  22.43928  08 52 29.189  +14 13 44.05  21.9w 14DO143   F51  C~1vXH      
2012 02  22.47287  08 52 29.090  +14 13 44.74  21.8w 14DO143   F51  C~1vXH      
2013 01  10.52147  09 01 14.397  +13 40 41.75  21.9w 14DO143   F51  C~1vXH      
2013 01  10.53530  09 01 14.325  +13 40 42.08  21.8w 14DO143   F51  C~1vXH      
2013 01  10.54917  09 01 14.277  +13 40 42.29  21.8w 14DO143   F51  C~1vXH      
2013 03  03.25761  08 57 19.740  +13 58 09.07  21.9w 14DO143   F51  C~1vXH      
2013 03  03.27192  08 57 19.675  +13 58 09.46  21.9w 14DO143   F51  C~1vXI      
2013 03  03.28630  08 57 19.622  +13 58 09.72  21.9w 14DO143   F51  C~1vXI      
2013 03  03.30066  08 57 19.569  +13 58 10.08  21.8w 14DO143   F51  C~1vXI      
2014 02  20.32877  09 03 37.377  +13 34 58.85  21.4i 14DO143   F51  C~1vXI      
2014 02  20.34168  09 03 37.335  +13 34 59.39  21.8i 14DO143   F51  C~1vXI      
2014 02  20.35455  09 03 37.267  +13 34 59.57  21.7i 14DO143   F51  C~1vXI      
2014 02  21.04235  09 03 34.307  +13 35 14.24  21.6R 14DO143   809  C~1waU      
2014 02  21.12253  09 03 33.937  +13 35 16.22  21.4R 14DO143   809  C~1waU      
2014 02  21.20147  09 03 33.549  +13 35 17.52  21.0R 14DO143   809  C~1waU      
2014 03  24.24119  09 01 39.107  +13 45 14.13  21.9w 14DO143   F51  C~1vXI      
2014 03  24.25273  09 01 39.067  +13 45 14.13  21.8w 14DO143   F51  C~1vXI      
2014 03  24.26429  09 01 39.039  +13 45 14.44  21.9w 14DO143   F51  C~1vXI      
2014 03  24.27595  09 01 38.994  +13 45 14.55  22.1w 14DO143   F51  C~1vXI      
2014 05  17.25987  09 01 18.291  +13 51 09.33  22.1w 14DO143   F51  C~1vXI      
2014 05  17.26451  09 01 18.317  +13 51 09.31  22.2w 14DO143   F51  C~1vXI      
2014 05  17.26914  09 01 18.306  +13 51 09.19  22.6w 14DO143   F51  C~1vXI      
2014 05  17.27377  09 01 18.326  +13 51 09.25  22.1w 14DO143   F51  C~1vXI      
2014 11  26.54438  09 14 16.083  +12 53 43.90  22.1w 14DO143   F51  C~1vXI      
2014 11  26.55563  09 14 16.083  +12 53 44.01  22.2w 14DO143   F51  C~1vXI      
2014 11  26.56689  09 14 16.066  +12 53 44.01  22.1w 14DO143   F51  C~1vXI      
2014 11  26.57810  09 14 16.058  +12 53 44.08  22.2w 14DO143   F51  C~1vXI      
2014 12  18.50934  09 13 35.975  +12 55 35.07  21.9w 14DO143   F51  C~1vXI      
2014 12  18.52174  09 13 35.952  +12 55 35.23  21.9w 14DO143   F51  C~1vXI      
2014 12  18.53261  09 13 35.907  +12 55 35.31  21.9w 14DO143   F51  C~1vXI      
2014 12  18.54357  09 13 35.876  +12 55 35.59  21.9w 14DO143   F51  C~1vXI      
2015 01  18.39615  09 11 41.459  +13 03 16.62  21.9w 14DO143   F51  C~1vXI      
2015 01  18.40978  09 11 41.394  +13 03 16.91  21.8w 14DO143   F51  C~1vXI      
2015 01  18.42327  09 11 41.342  +13 03 17.01  21.7w 14DO143   F51  C~1vXI      
2015 01  18.43678  09 11 41.284  +13 03 17.40  21.6w 14DO143   F51  C~1vXI      
2015 01  20.55311  09 11 31.777  +13 03 58.85  21.9w 14DO143   F51  C~1vXI      
2015 01  20.56567  09 11 31.717  +13 03 59.08  22.0w 14DO143   F51  C~1vXI      
2015 01  20.57837  09 11 31.666  +13 03 59.34  21.8w 14DO143   F51  C~1vXI      
2015 01  22.56346  09 11 22.642  +13 04 38.91  21.9w 14DO143   F51  C~1vXI      
2015 01  22.57577  09 11 22.586  +13 04 39.18  21.8w 14DO143   F51  C~1vXI      
2015 01  22.58808  09 11 22.530  +13 04 39.48  21.7w 14DO143   F51  C~1vXI      
2015 03  18.24102  09 07 26.257  +13 23 52.45  22.2w 14DO143   F51  C~1vXI      
2015 03  18.25326  09 07 26.230  +13 23 52.66  22.0w 14DO143   F51  C~1vXI      
2015 03  18.26539  09 07 26.212  +13 23 52.73  22.0w 14DO143   F51  C~1vXI      
2015 03  18.27749  09 07 26.162  +13 23 53.03  22.1w 14DO143   F51  C~1vXI      
2015 03  19.40320  09 07 22.536  +13 24 13.26  22.0w 14DO143   F51  C~1vXI      
2015 03  19.41520  09 07 22.502  +13 24 13.38  21.8w 14DO143   F51  C~1vXI      
2015 03  19.42718  09 07 22.468  +13 24 13.76  22.1w 14DO143   F51  C~1vXI      
2015 03  19.43920  09 07 22.424  +13 24 13.68  21.9w 14DO143   F51  C~1vXI      

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     0.10       0.00    -0.03
  2   0.0000     -1.72    -0.48      -0.07    -0.13
  3   0.0001     -3.29     0.21       0.20     0.08
  4   0.8846   7897.70     0.04     211.37     0.10
  5   0.8846   7896.60    -0.14     211.40     0.14
  6   0.8847   7895.87     0.05     211.40     0.17
  7   1.0262   4320.08     0.19     262.60    -0.22
  8   1.0263   4319.06     0.06     262.71    -0.15
  9   1.0263   4318.25     0.14     262.75    -0.16
 10   1.0264   4317.41     0.19     262.88    -0.06
 11   1.9956   9997.98    -0.11     471.28    -0.29
 12   1.9957   9997.23     0.05     471.62     0.03
 13   1.9957   9996.23    -0.05     471.52    -0.10
 14   1.9976   9950.58 (   1.41)    473.35 (   0.06)
 15   1.9978   9944.83 (   1.22)    473.72 (   0.27)
 16   1.9980   9939.02 (   0.90)    473.36 (  -0.24)
 17   2.0830   8167.00    -0.05     574.36     0.21
 18   2.0830   8166.44    -0.11     574.20     0.01
 19   2.0831   8165.96    -0.09     574.38     0.14
 20   2.0831   8165.30    -0.24     574.30     0.02
 21   2.2309   7775.49    -0.08     830.02     0.12
 22   2.2309   7775.86     0.16     830.11     0.19
 23   2.2309   7775.74    -0.09     829.95     0.01
 24   2.2309   7776.01     0.04     830.09     0.13
 25   2.7601  19693.02     0.01     795.89    -0.07
 26   2.7601  19692.99     0.13     795.99     0.08
 27   2.7601  19692.75     0.04     795.92     0.05
 28   2.7602  19692.62     0.05     795.95     0.12
 29   2.8202  19094.55     0.00     729.72     0.18
 30   2.8203  19094.17     0.16     729.77     0.27
 31   2.8203  19093.52    -0.04     729.65     0.18
 32   2.8203  19093.00    -0.09     729.79     0.35
 33   2.9048  17345.38    -0.05     681.60    -0.04
 34   2.9048  17344.38    -0.11     681.60    -0.03
 35   2.9049  17343.62     0.07     681.48    -0.15
 36   2.9049  17342.69     0.08     681.61    -0.02
 37   2.9107  17196.71    -0.06     680.78    -0.02
 38   2.9107  17195.79    -0.09     680.74    -0.04
 39   2.9108  17195.00     0.01     680.78    -0.00
 40   2.9162  17056.39    -0.12     680.23    -0.14
 41   2.9162  17055.52    -0.11     680.25    -0.11
 42   2.9163  17054.65    -0.11     680.30    -0.05
 43   3.0659  13398.80    -0.25     786.28    -0.09
 44   3.0659  13398.36    -0.06     786.37    -0.04
 45   3.0660  13398.09     0.30     786.36    -0.09
 46   3.0660  13397.30     0.14     786.44    -0.06
 47   3.0691  13340.57    -0.01     790.62    -0.09
 48   3.0691  13340.06     0.08     790.59    -0.15
 49   3.0691  13339.47     0.10     790.81     0.03
 50   3.0692  13338.88     0.11     790.55    -0.27

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.

14DO143    quality flag:2

Type:           2:1E      2:1E  SCATNEAR

axisobj        47.707    47.719    47.695
ecceobj         0.103     0.103     0.102
incobj          4.193     4.194     4.193
qmin           41.533    41.217    41.682
qmax           54.679    54.945    54.476
amean          47.797    47.797    47.770
amin           47.266    47.250    47.258
amax           48.386    48.386    48.381
emean           0.109     0.112     0.087
emin            0.087     0.079     0.022
emax            0.131     0.137     0.127
imean           4.265     3.916     4.591
imin            3.772     3.119     3.964
imax            4.846     5.228     5.046
excite_mean     0.132     0.131     0.120
fracstop        1.000     1.000     1.000
cjmean          3.128     3.128     3.131

libcent 0       179.9     179.0    -180.0
libamp  0       156.9     154.4    -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       184.8     157.3     173.0
kozaiamp        180.0     180.0     180.0