Orbit Fit and Astrometric record for 14AN55

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: 14AN55    
# Created Sun Oct 22 01:38:20 2017
# Orbit generated from Bernstein formalism
# Fitting   68 observations of   68
# Arc:  10.24y
# First observation: 2005/03/12
#  Last observation: 2015/06/09
Preliminary a, adot, b, bdot, g, gdot:
  -0.002613   0.017979   0.000360  -0.002707   0.021910   0.000000
# Chi-squared of fit:    19.85 DOF:  130 RMS:  0.10
# Min/Max residuals:    -0.45    0.16
# Exact a, adot, b, bdot, g, gdot:
  1.321435E-05  1.646835E-02 -2.051896E-06 -2.474521E-03  1.977251E-02 -7.054096E-03
# Covariance matrix:
  4.8073E-13 -1.0815E-13 -2.2049E-14  1.0696E-14 -6.4835E-14 -3.3727E-13
 -1.0815E-13  4.1052E-14  1.0605E-14 -5.3800E-15  1.7431E-14  1.7239E-13
 -2.2049E-14  1.0605E-14  3.2638E-13 -3.7459E-14  7.4352E-15  4.9569E-14
  1.0696E-14 -5.3800E-15 -3.7459E-14  5.0187E-15 -2.8165E-15 -2.5180E-14
 -6.4835E-14  1.7431E-14  7.4352E-15 -2.8165E-15  6.7923E-14  7.9623E-14
 -3.3727E-13  1.7239E-13  4.9569E-14 -2.5180E-14  7.9623E-14  8.0718E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   -4.278002  129.466797   -0.663376   -0.054670   -0.732180  2453441.669616
# Heliocentric elements and errors
Epoch:              2453440.5000  =  2005/03/11
Mean Anomaly:          305.47420 +/-     0.006
Argument of Peri:      306.28347 +/-     0.005
Long of Asc Node:      283.77535 +/-     0.001
Inclination:             9.40169 +/-     0.000
Eccentricity:         0.38918288 +/-    0.0001
Semi-Major Axis:     56.57554165 +/-    0.0041
Time of Perihelion: 2476982.3759 +/-       1.2
Perihelion:          34.55730920 +/-    0.0039
Aphelion:            78.59377410 +/-    0.0064
Period (y)              425.5507 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -33.04128067 +/-    0.0004
Ecliptic Y           39.07949000 +/-    0.0005
Ecliptic Z           -3.77280135 +/-    0.0001
Ecliptic XDOT        -0.00112492 +/-    0.0000
Ecliptic YDOT        -0.00222828 +/-    0.0000
Ecliptic ZDOT        -0.00026876 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   51.31439171 +/-    0.0005
Geocenter to KBO     50.57527176 +/-    0.0007
# Hcoef:  4.20

The following table shows the complete astrometric record for 14AN55. 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 (14AN55) followed by the observatory code and reference code for the source of the astrometry.

2005 03  12.168873 08 42 56.69   +13 45 21.1   21.2V 14AN55    645  C~1w3v      
2005 03  12.169702 08 42 56.69   +13 45 21.1   21.0V 14AN55    645  C~1w3v      
2005 03  12.172190 08 42 56.68   +13 45 21.1   22.3V 14AN55    645  C~1w3v      
2011 01  30.34458  09 07 56.117  +11 05 53.79  21.1w 14AN55    F51  C~1vXB      
2011 01  30.35914  09 07 56.055  +11 05 54.00  20.9w 14AN55    F51  C~1vXB      
2011 01  30.37476  09 07 55.994  +11 05 54.25  21.0w 14AN55    F51  C~1vXB      
2011 01  30.38928  09 07 55.929  +11 05 54.47  20.9w 14AN55    F51  C~1vXB      
2012 02  03.53563  09 11 32.964  +10 40 14.26  20.6i 14AN55    F51  C~1vXB      
2012 02  03.54852  09 11 32.910  +10 40 14.56  20.5i 14AN55    F51  C~1vXB      
2012 02  03.56311  09 11 32.849  +10 40 14.89  20.8r 14AN55    F51  C~1vXB      
2012 02  03.58203  09 11 32.766  +10 40 15.07  21.0r 14AN55    F51  C~1vXB      
2012 02  22.42769  09 10 14.496  +10 45 57.91  21.3w 14AN55    F51  C~1vXB      
2012 02  22.44448  09 10 14.418  +10 45 57.77  21.4w 14AN55    F51  C~1vXB      
2012 02  22.46126  09 10 14.354  +10 45 58.68  21.1w 14AN55    F51  C~1vXB      
2012 02  22.47810  09 10 14.292  +10 45 58.81  21.1w 14AN55    F51  C~1vXB      
2013 01  10.52692  09 17 03.502  +10 06 57.24  20.8w 14AN55    F51  C~1vXB      
2013 01  10.52759  09 17 03.501  +10 06 57.19  21.2w 14AN55    F51  C~1vXB      
2013 01  10.54072  09 17 03.451  +10 06 57.40  20.7w 14AN55    F51  C~1vXB      
2013 01  10.54142  09 17 03.449  +10 06 57.31  21.2w 14AN55    F51  C~1vXB      
2013 01  10.55457  09 17 03.399  +10 06 57.52  20.8w 14AN55    F51  C~1vXB      
2013 01  10.55523  09 17 03.396  +10 06 57.56  21.2w 14AN55    F51  C~1vXB      
2013 01  10.56847  09 17 03.352  +10 06 57.79  20.7w 14AN55    F51  C~1vXB      
2013 01  10.56914  09 17 03.338  +10 06 57.67  21.1w 14AN55    F51  C~1vXB      
2014 01  05.43453  09 21 21.963  +09 37 55.41  21.1w 14AN55    F51  C~1vXB      
2014 01  05.44965  09 21 21.901  +09 37 55.59  21.0w 14AN55    F51  C~1vXB      
2014 01  05.46482  09 21 21.856  +09 37 55.76  21.1w 14AN55    F51  C~1vXB      
2014 01  05.47996  09 21 21.805  +09 37 55.80  21.1w 14AN55    F51  C~1vXB      
2014 01  25.39296  09 20 05.450  +09 42 25.82  21.1w 14AN55    F51  C~1vXB      
2014 01  25.40452  09 20 05.402  +09 42 26.02  21.1w 14AN55    F51  C~1vXB      
2014 01  25.41604  09 20 05.347  +09 42 26.23  21.1w 14AN55    F51  C~1vXB      
2014 01  25.42754  09 20 05.308  +09 42 26.40  21.1w 14AN55    F51  C~1vXB      
2014 02  28.31763  09 17 44.413  +09 52 53.76  20.9w 14AN55    F51  C~1vXB      
2014 02  28.33068  09 17 44.365  +09 52 53.98  21.0w 14AN55    F51  C~1vXB      
2014 02  28.34382  09 17 44.309  +09 52 54.26  21.0w 14AN55    F51  C~1vXB      
2014 03  24.24326  09 16 23.952  +10 00 11.88  21.1w 14AN55    F51  C~1vXB      
2014 03  24.25480  09 16 23.919  +10 00 12.08  21.3w 14AN55    F51  C~1vXB      
2014 03  24.26639  09 16 23.880  +10 00 12.14  21.2w 14AN55    F51  C~1vXB      
2014 03  24.27801  09 16 23.847  +10 00 12.31  21.1w 14AN55    F51  C~1vXB      
2014 05  25.26022  09 15 56.917  +10 07 49.06  21.2w 14AN55    F51  C~1vXB      
2014 05  25.26485  09 15 56.926  +10 07 48.95  21.1w 14AN55    F51  C~1vXB      
2014 05  25.26950  09 15 56.931  +10 07 48.92  21.3w 14AN55    F51  C~1vXB      
2014 11  26.54768  09 26 49.193  +09 07 41.98  21.2w 14AN55    F51  C~1vXB      
2014 11  26.55894  09 26 49.196  +09 07 41.79  21.3w 14AN55    F51  C~1vXB      
2014 11  26.57019  09 26 49.189  +09 07 41.82  21.3w 14AN55    F51  C~1vXB      
2014 11  26.58141  09 26 49.179  +09 07 41.67  21.3w 14AN55    F51  C~1vXB      
2015 01  20.54193  09 24 28.881  +09 12 28.47  21.0w 14AN55    F51  C~1vXB      
2015 01  20.55452  09 24 28.825  +09 12 28.66  21.0w 14AN55    F51  C~1vXB      
2015 01  20.56709  09 24 28.777  +09 12 28.85  20.9w 14AN55    F51  C~1vXB      
2015 01  20.57980  09 24 28.725  +09 12 29.06  20.9w 14AN55    F51  C~1vXB      
2015 01  22.55246  09 24 20.785  +09 12 59.11  21.0w 14AN55    F51  C~1vXB      
2015 01  22.56479  09 24 20.732  +09 12 59.28  20.9w 14AN55    F51  C~1vXB      
2015 01  22.57708  09 24 20.685  +09 12 59.49  21.1w 14AN55    F51  C~1vXB      
2015 01  22.58940  09 24 20.634  +09 12 59.66  21.0w 14AN55    F51  C~1vXB      
2015 03  10.30538  09 21 09.906  +09 27 37.80  21.2w 14AN55    F51  C~1vXB      
2015 03  10.31774  09 21 09.864  +09 27 38.06  21.2w 14AN55    F51  C~1vXB      
2015 03  10.33011  09 21 09.825  +09 27 38.11  21.0w 14AN55    F51  C~1vXB      
2015 03  18.24300  09 20 43.214  +09 30 07.32  21.1w 14AN55    F51  C~1vXB      
2015 03  18.25524  09 20 43.175  +09 30 07.51  21.1w 14AN55    F51  C~1vXB      
2015 03  18.26737  09 20 43.130  +09 30 07.73  21.0w 14AN55    F51  C~1vXB      
2015 03  18.27949  09 20 43.088  +09 30 07.96  21.1w 14AN55    F51  C~1vXB      
2015 03  19.40782  09 20 39.557  +09 30 28.45  21.0w 14AN55    F51  C~1vXB      
2015 03  19.41979  09 20 39.523  +09 30 28.72  21.1w 14AN55    F51  C~1vXB      
2015 03  19.43178  09 20 39.483  +09 30 28.89  21.1w 14AN55    F51  C~1vXB      
2015 03  19.44379  09 20 39.437  +09 30 29.08  21.1w 14AN55    F51  C~1vXB      
2015 06  09.27031  09 20 29.136  +09 38 40.50  21.3w 14AN55    F51  C~1vXB      
2015 06  09.27558  09 20 29.159  +09 38 40.56  21.2w 14AN55    F51  C~1vXB      
2015 06  09.28086  09 20 29.170  +09 38 40.39  21.2w 14AN55    F51  C~1vXB      
2015 06  09.28615  09 20 29.154  +09 38 40.47  21.2w 14AN55    F51  C~1vXB      

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     0.02
  2   0.0000      0.00     0.03       0.00     0.01
  3   0.0000     -0.14    -0.00      -0.04    -0.03
  4   5.8869  23843.46    -0.11   -3246.28     0.02
  5   5.8869  23842.51    -0.10   -3246.34    -0.01
  6   5.8869  23841.57    -0.02   -3246.35     0.00
  7   5.8870  23840.57    -0.06   -3246.41    -0.03
  8   6.8977  27398.75    -0.09   -3822.31    -0.09
  9   6.8977  27397.89    -0.09   -3822.25    -0.01
 10   6.8977  27396.91    -0.10   -3822.19     0.08
 11   6.8978  27395.67    -0.08   -3822.37    -0.07
 12   6.9494  26171.73     0.12   -3821.33     0.03
 13   6.9494  26170.65     0.11   -3821.79    -0.45
 14   6.9495  26169.47    -0.00   -3821.18     0.15
 15   6.9495  26168.54     0.14   -3821.32    -0.00
 16   7.8340  32757.47     0.07   -4344.12     0.07
 17   7.8340  32757.47     0.10   -4344.17     0.02
 18   7.8340  32756.68     0.09   -4344.18     0.07
 19   7.8340  32756.68     0.13   -4344.28    -0.02
 20   7.8340  32755.89     0.11   -4344.29     0.02
 21   7.8340  32755.83     0.09   -4344.27     0.05
 22   7.8341  32755.13     0.16   -4344.23     0.14
 23   7.8341  32754.96     0.03   -4344.41    -0.03
 24   8.8193  37040.18    -0.03   -4912.94    -0.03
 25   8.8194  37039.22    -0.16   -4913.03    -0.05
 26   8.8194  37038.51    -0.04   -4913.06    -0.01
 27   8.8195  37037.75     0.02   -4913.25    -0.11
 28   8.8740  35842.76    -0.16   -4984.04     0.05
 29   8.8740  35842.00    -0.16   -4984.05     0.06
 30   8.8741  35841.14    -0.26   -4984.09     0.05
 31   8.8741  35840.52    -0.12   -4984.09     0.08
 32   8.9669  33603.19     0.04   -4985.94    -0.01
 33   8.9669  33602.43     0.11   -4985.94    -0.03
 34   8.9669  33601.53     0.04   -4985.91    -0.02
 35   9.0324  32305.66     0.05   -4907.66     0.11
 36   9.0324  32305.12     0.04   -4907.61     0.12
 37   9.0324  32304.54    -0.02   -4907.72    -0.04
 38   9.0325  32304.01    -0.02   -4907.70    -0.06
 39   9.2022  31778.12     0.01   -4580.50     0.11
 40   9.2022  31778.28     0.04   -4580.57     0.02
 41   9.2022  31778.36    -0.02   -4580.57    -0.01
 42   9.7095  42396.35    -0.09   -5235.16     0.12
 43   9.7095  42396.46     0.11   -5235.33     0.04
 44   9.7095  42396.34     0.09   -5235.34     0.14
 45   9.7095  42396.24     0.08   -5235.53     0.05
 46   9.8600  40244.01     0.04   -5578.06     0.10
 47   9.8601  40243.12    -0.03   -5578.13     0.08
 48   9.8601  40242.36     0.02   -5578.15     0.09
 49   9.8601  40241.53     0.00   -5578.18     0.11
 50   9.8655  40115.71    -0.01   -5583.94     0.06
 51   9.8656  40114.88    -0.04   -5584.01     0.03
 52   9.8656  40114.12     0.01   -5584.01     0.06
 53   9.8656  40113.32     0.01   -5584.07     0.04
 54   9.9935  37052.33    -0.05   -5566.42    -0.08
 55   9.9936  37051.63    -0.02   -5566.35    -0.05
 56   9.9936  37051.05     0.12   -5566.47    -0.21
 57  10.0153  36617.30     0.04   -5537.47     0.01
 58  10.0153  36616.67     0.06   -5537.46    -0.02
 59  10.0153  36615.95    -0.03   -5537.44    -0.05
 60  10.0154  36615.26    -0.07   -5537.40    -0.06
 61  10.0185  36557.53     0.04   -5532.87    -0.06
 62  10.0185  36556.95     0.08   -5532.75     0.00
 63  10.0185  36556.32     0.06   -5532.76    -0.05
 64  10.0185  36555.59    -0.05   -5532.78    -0.11
 65  10.2426  36256.15     0.02   -5099.83    -0.14
 66  10.2426  36256.47     0.10   -5099.67    -0.00
 67  10.2426  36256.68     0.07   -5099.79    -0.14
 68  10.2426  36256.42    -0.43   -5099.78    -0.15

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.

14AN55    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        56.038    56.050    56.027
ecceobj         0.383     0.384     0.383
incobj          9.395     9.395     9.395
qmin           33.338    33.694    33.714
qmax           81.598    81.446    80.492
amean          56.556    56.589    56.277
amin           55.353    55.276    55.268
amax           58.006    57.982    57.589
emean           0.391     0.387     0.383
emin            0.370     0.365     0.366
emax            0.412     0.407     0.403
imean          10.938    11.427    11.436
imin            9.412    10.349    10.215
imax           12.196    12.603    12.261
excite_mean     0.434     0.435     0.431
fracstop        1.000     1.000     1.000
cjmean          3.009     3.010     3.010

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       181.6     178.6     170.7
kozaiamp        180.0     180.0     180.0