Orbit Fit and Astrometric record for 14LR28

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: 14LR28    
# Created Sat Dec 16 02:38:03 2017
# Orbit generated from Bernstein formalism
# Fitting   40 observations of   40
# Arc:   3.16y
# First observation: 2011/07/22
#  Last observation: 2014/09/19
Preliminary a, adot, b, bdot, g, gdot:
   0.000069   0.019988  -0.000000  -0.000502   0.021944   0.000000
# Chi-squared of fit:    15.06 DOF:   74 RMS:  0.11
# Min/Max residuals:    -0.29    0.29
# Exact a, adot, b, bdot, g, gdot:
  1.461391E-05  2.009512E-02  4.638650E-07 -5.039860E-04  2.221650E-02  7.273298E-04
# Covariance matrix:
  4.8538E-13 -4.1398E-13 -3.6106E-15  7.3728E-15 -2.5697E-13 -4.2202E-12
 -4.1398E-13  6.8916E-13  8.1005E-15 -1.6541E-14  5.4151E-13  9.4661E-12
 -3.6106E-15  8.1005E-15  3.5547E-13 -1.2754E-13  6.5741E-15  1.2082E-13
  7.3728E-15 -1.6541E-14 -1.2754E-13  5.1335E-14 -1.3423E-14 -2.4671E-13
 -2.5697E-13  5.4151E-13  6.5741E-15 -1.3423E-14  6.0871E-13  7.6927E-12
 -4.2202E-12  9.4661E-12  1.2082E-13 -2.4671E-13  7.6927E-12  1.4116E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.308582  -44.798084    0.283963    0.005189   -0.974090  2455764.954816
# Heliocentric elements and errors
Epoch:              2455760.5000  =  2011/07/18
Mean Anomaly:          146.08043 +/-     0.536
Argument of Peri:       18.85080 +/-     0.536
Long of Asc Node:      146.76975 +/-     0.004
Inclination:             1.46273 +/-     0.001
Eccentricity:         0.05167187 +/-    0.0003
Semi-Major Axis:     44.06476970 +/-    0.0031
Time of Perihelion: 2412406.8949 +/-     159.1
Perihelion:          41.78786063 +/-    0.0132
Aphelion:            46.34167878 +/-    0.0133
Period (y)              292.5132 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           32.43491901 +/-    0.0011
Ecliptic Y          -32.60208069 +/-    0.0011
Ecliptic Z            0.24248957 +/-    0.0000
Ecliptic XDOT         0.00180595 +/-    0.0000
Ecliptic YDOT         0.00169947 +/-    0.0000
Ecliptic ZDOT        -0.00006157 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   45.98889472 +/-    0.0011
Geocenter to KBO     45.01158995 +/-    0.0016
# Hcoef:  5.31

The following table shows the complete astrometric record for 14LR28. 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 (14LR28) followed by the observatory code and reference code for the source of the astrometry.

2011 07  22.45405  21 10 17.016  -15 58 54.60  21.5r 14LR28    F51  C~1vXZ      
2011 07  22.46698  21 10 16.960  -15 58 54.43  21.2i 14LR28    F51  C~1vXZ      
2011 07  22.47863  21 10 16.916  -15 58 55.06  21.5i 14LR28    F51  C~1vXZ      
2013 07  14.48723  21 19 57.847  -15 18 40.54  21.8w 14LR28    F51  C~1vXZ      
2013 07  14.50267  21 19 57.779  -15 18 40.90  21.8w 14LR28    F51  C~1vXZ      
2013 07  14.51873  21 19 57.717  -15 18 41.17  22.0w 14LR28    F51  C~1vXZ      
2013 07  14.53417  21 19 57.649  -15 18 41.52  21.9w 14LR28    F51  C~1vXZ      
2013 07  15.46735  21 19 54.050  -15 18 58.26  21.6w 14LR28    F51  C~1vXZ      
2013 07  15.48172  21 19 53.979  -15 18 58.53  22.0w 14LR28    F51  C~1vXZ      
2013 07  15.49602  21 19 53.932  -15 18 58.89  21.7w 14LR28    F51  C~1vXZ      
2013 07  15.51032  21 19 53.874  -15 18 59.03  22.0w 14LR28    F51  C~1vXZ      
2013 08  29.35174  21 16 43.830  -15 33 44.86  21.6w 14LR28    F51  C~1vXZ      
2013 08  29.36559  21 16 43.773  -15 33 45.16  21.7w 14LR28    F51  C~1vXZ      
2013 08  29.37941  21 16 43.718  -15 33 45.40  21.7w 14LR28    F51  C~1vXZ      
2013 08  29.39323  21 16 43.661  -15 33 45.69  21.8w 14LR28    F51  C~1vXZ      
2014 06  05.56749  21 26 17.057  -14 50 48.27  22.0w 14LR28    F51  C~1vXZ      
2014 06  05.57947  21 26 17.045  -14 50 48.25  22.1w 14LR28    F51  C~1vXZ      
2014 06  05.59179  21 26 17.009  -14 50 48.47  22.0w 14LR28    F51  C~1vXZ      
2014 06  05.60428  21 26 17.003  -14 50 48.38  21.8w 14LR28    F51  C~1vXZ      
2014 07  07.52698  21 24 56.949  -14 57 09.73  21.7w 14LR28    F51  C~1vXZ      
2014 07  07.53880  21 24 56.909  -14 57 10.12  21.7w 14LR28    F51  C~1vXZ      
2014 07  07.55061  21 24 56.842  -14 57 10.25  21.9w 14LR28    F51  C~1vXZ      
2014 07  07.56245  21 24 56.817  -14 57 10.48  21.8w 14LR28    F51  C~1vXZ      
2014 07  28.49510  21 23 35.335  -15 03 37.99  22.1w 14LR28    F51  C~1vXZ      
2014 07  28.50639  21 23 35.302  -15 03 38.28  21.7w 14LR28    F51  C~1vXZ      
2014 07  28.51768  21 23 35.238  -15 03 38.66  21.6w 14LR28    F51  C~1vXZ      
2014 07  28.52893  21 23 35.188  -15 03 38.80  21.8w 14LR28    F51  C~1vXZ      
2014 08  15.45229  21 22 17.776  -15 09 46.91  21.2i 14LR28    F51  C~1vXZ      
2014 08  15.46466  21 22 17.714  -15 09 47.11  21.4i 14LR28    F51  C~1vXZ      
2014 08  15.47701  21 22 17.664  -15 09 47.28  21.3i 14LR28    F51  C~1vXZ      
2014 08  15.48941  21 22 17.605  -15 09 47.46  21.2i 14LR28    F51  C~1vXZ      
2014 08  26.39437  21 21 30.942  -15 13 29.21  21.9w 14LR28    F51  C~1vXZ      
2014 08  26.40629  21 21 30.904  -15 13 29.60  21.8w 14LR28    F51  C~1vXZ      
2014 08  26.41818  21 21 30.852  -15 13 29.85  22.0w 14LR28    F51  C~1vXZ      
2014 09  12.33320  21 20 24.632  -15 18 44.91  21.2i 14LR28    F51  C~1vXZ      
2014 09  12.34484  21 20 24.571  -15 18 44.88  21.3i 14LR28    F51  C~1vXZ      
2014 09  12.35648  21 20 24.534  -15 18 44.99  21.2i 14LR28    F51  C~1vXZ      
2014 09  19.28145  21 20 00.940  -15 20 37.70  22.1w 14LR28    F51  C~1vXZ      
2014 09  19.29374  21 20 00.894  -15 20 37.90  21.9w 14LR28    F51  C~1vXZ      
2014 09  19.30598  21 20 00.858  -15 20 38.05  22.3w 14LR28    F51  C~1vXZ      

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    -0.06       0.00    -0.17
  2   0.0000     -0.72     0.05       0.40     0.23
  3   0.0001     -1.51     0.00      -0.02    -0.19
  4   1.9796   8732.71     0.12    -205.80     0.05
  5   1.9796   8731.67    -0.00    -205.85     0.00
  6   1.9796   8730.73     0.02    -205.83     0.02
  7   1.9797   8729.68    -0.10    -205.86    -0.02
  8   1.9822   8674.89     0.07    -205.96     0.05
  9   1.9823   8673.83    -0.12    -205.90     0.10
 10   1.9823   8673.07    -0.02    -206.04    -0.04
 11   1.9824   8672.23     0.00    -205.92     0.08
 12   2.1051   5781.62    -0.00    -218.50     0.08
 13   2.1052   5780.75    -0.01    -218.53     0.04
 14   2.1052   5779.91     0.04    -218.52     0.05
 15   2.1052   5779.04     0.03    -218.55     0.03
 16   2.8723  14491.62    -0.04    -306.29    -0.23
 17   2.8723  14491.46     0.07    -306.22    -0.16
 18   2.8724  14490.89    -0.22    -306.26    -0.21
 19   2.8724  14490.84     0.01    -306.15    -0.10
 20   2.9598  13263.82     0.17    -308.16     0.12
 21   2.9598  13263.14     0.14    -308.35    -0.08
 22   2.9599  13262.17    -0.19    -308.17     0.10
 23   2.9599  13261.76     0.04    -308.28    -0.01
 24   3.0172  12014.57     0.03    -311.78     0.29
 25   3.0173  12014.03     0.22    -311.91     0.16
 26   3.0173  12013.02    -0.04    -311.99     0.08
 27   3.0173  12012.29    -0.04    -311.89     0.17
 28   3.0664  10828.76    -0.02    -317.13    -0.10
 29   3.0664  10827.85    -0.10    -317.04    -0.01
 30   3.0665  10827.10    -0.01    -316.98     0.05
 31   3.0665  10826.23    -0.05    -316.89     0.14
 32   3.0963  10113.46    -0.04    -320.83     0.04
 33   3.0964  10112.82     0.09    -321.03    -0.16
 34   3.0964  10112.03     0.06    -321.04    -0.17
 35   3.1427   9101.16     0.11    -328.18    -0.29
 36   3.1428   9100.32    -0.07    -327.88     0.01
 37   3.1428   9099.78     0.03    -327.82     0.07
 38   3.1617   8739.67    -0.03    -331.14    -0.01
 39   3.1618   8738.98    -0.11    -331.12     0.00
 40   3.1618   8738.43    -0.04    -331.11     0.02

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.

14LR28    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.968    43.978    43.959
ecceobj         0.052     0.052     0.053
incobj          1.462     1.462     1.462
qmin           40.727    40.715    40.722
qmax           47.501    47.520    47.540
amean          44.008    44.019    44.006
amin           43.664    43.680    43.661
amax           44.374    44.386    44.372
emean           0.055     0.055     0.056
emin            0.039     0.039     0.040
emax            0.071     0.071     0.072
imean           1.587     1.594     1.598
imin            0.829     0.852     0.855
imax            2.263     2.267     2.274
excite_mean     0.063     0.063     0.063
fracstop        1.000     1.000     1.000
cjmean          3.097     3.097     3.097

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       184.7     183.4     182.7
kozaiamp        180.0     179.9     180.0