Orbit Fit and Astrometric record for 14LO28

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: 14LO28    
# Created Thu Oct 19 01:38:25 2017
# Orbit generated from Bernstein formalism
# Fitting   37 observations of   38
# Arc:   4.86y
# First observation: 2010/09/02
#  Last observation: 2015/07/12
Preliminary a, adot, b, bdot, g, gdot:
  -0.000420   0.023550  -0.000093   0.009515   0.024138   0.000000
# Chi-squared of fit:    10.74 DOF:   68 RMS:  0.10
# Min/Max residuals:    -0.22    0.23
# Exact a, adot, b, bdot, g, gdot:
  1.539147E-05  2.293885E-02  6.106702E-06  9.364318E-03  2.489452E-02 -2.925608E-03
# Covariance matrix:
  3.3718E-13 -1.7111E-13  2.8753E-14 -4.1664E-14 -7.2428E-14 -8.5523E-13
 -1.7111E-13  1.6374E-13 -3.6468E-14  5.3098E-14  6.5522E-14  1.0958E-12
  2.8753E-14 -3.6468E-14  2.6471E-13 -7.7068E-14 -4.4611E-14 -3.1442E-13
 -4.1664E-14  5.3098E-14 -7.7068E-14  3.9870E-14  6.0939E-14  4.5198E-13
 -7.2428E-14  6.5522E-14 -4.4611E-14  6.0939E-14  4.9483E-13  1.1658E-12
 -8.5523E-13  1.0958E-12 -3.1442E-13  4.5198E-13  1.1658E-12  9.1945E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   13.696295  -43.555725   -0.396243    0.218533   -0.896881  2455441.905926
# Heliocentric elements and errors
Epoch:              2455440.5000  =  2010/09/01
Mean Anomaly:          300.15744 +/-     0.029
Argument of Peri:      105.21772 +/-     0.038
Long of Asc Node:      287.18836 +/-     0.000
Inclination:            25.57512 +/-     0.000
Eccentricity:         0.12169115 +/-    0.0001
Semi-Major Axis:     43.19239553 +/-    0.0055
Time of Perihelion: 2472675.7275 +/-       7.6
Perihelion:          37.93626321 +/-    0.0075
Aphelion:            48.44852784 +/-    0.0085
Period (y)              283.8698 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           29.22982167 +/-    0.0008
Ecliptic Y          -27.24201232 +/-    0.0008
Ecliptic Z            9.51140720 +/-    0.0003
Ecliptic XDOT         0.00133568 +/-    0.0000
Ecliptic YDOT         0.00221802 +/-    0.0000
Ecliptic ZDOT         0.00092438 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.07282042 +/-    0.0008
Geocenter to KBO     40.16948767 +/-    0.0011
# Hcoef:  5.64

The following table shows the complete astrometric record for 14LO28. 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 (14LO28) followed by the observatory code and reference code for the source of the astrometry.

2010 09  02.40516  20 59 18.045  -02 48 43.65  21.6g 14LO28    F51  C~1vXY      
2010 09  02.41708  20 59 18.017  -02 48 43.70  21.7g 14LO28    F51  C~1vXY      
2010 09  02.43006  20 59 17.945  -02 48 44.13  21.3i 14LO28    F51  C~1vXY      
2010 09  02.44135  20 59 17.904  -02 48 44.45  21.2i 14LO28    F51  C~1vXY      
2012 08  21.46669  21 09 02.843  -00 56 26.49  21.6g 14LO28    F51  C~1vXY      
2012 08  21.47793  21 09 02.768  -00 56 26.48  21.6g 14LO28    F51  C~1vXY      
2012 08  21.48887  21 09 02.734  -00 56 26.97  21.4r 14LO28    F51  C~1vXY      
2012 08  21.49934  21 09 02.674  -00 56 27.24  21.2r 14LO28    F51  C~1vXY      
2013 08  15.35586  21 14 01.522  +00 00 16.02  21.2i 14LO28    F51  C~1vXY      
2013 08  15.41487  21 14 01.240  +00 00 14.80  21.0r 14LO28    F51  C~1vXY      
2013 08  15.42543  21 14 01.183  +00 00 14.72  21.2r 14LO28    F51  C~1vXY      
2014 06  01.52233  21 23 08.821  +00 54 37.98  21.5w 14LO28    F51  C~1vXY      
2014 06  01.53425  21 23 08.793  +00 54 38.35  21.3w 14LO28    F51  C~1vXY      
2014 06  01.54617  21 23 08.782  +00 54 38.64  21.4w 14LO28    F51  C~1vXY      
2014 06  01.55815  21 23 08.764  +00 54 38.85  21.4w 14LO28    F51  C~1vXY      
2014 07  03.50359  21 21 45.879  +01 01 22.27  21.3w 14LO28    F51  C~1vXY      
2014 07  03.51598  21 21 45.831  +01 01 22.30  21.3w 14LO28    F51  C~1vXY      
2014 07  03.52839  21 21 45.783  +01 01 22.26  21.3w 14LO28    F51  C~1vXY      
2014 07  03.54093  21 21 45.740  +01 01 22.35  21.2w 14LO28    F51  C~1vXY      
2014 08  18.40588  21 18 17.570  +00 54 12.13  21.1i 14LO28    F51  C~1vXY      
2014 08  18.41830  21 18 17.515  +00 54 11.88  21.1i 14LO28    F51  C~1vXY      
2014 08  18.43073  21 18 17.458  +00 54 11.56  21.2i 14LO28    F51  C~1vXY      
2014 08  18.44310  21 18 17.388  +00 54 11.35  21.1i 14LO28    F51  C~1vXY      
2014 08  29.32891  21 17 26.144  +00 50 12.97  21.7w 14LO28    F51  C~1vXY      
2014 08  29.34216  21 17 26.111  +00 50 12.01  21.5w 14LO28    F51  C~1vXY      
2014 08  29.35543  21 17 26.062  +00 50 11.69  21.4w 14LO28    F51  C~1vXY      
2015 06  11.52363  21 27 19.897  +01 52 02.91  21.1i 14LO28    F51  C~1vXY      
2015 06  11.53650  21 27 19.853  +01 52 03.26  21.4i 14LO28    F51  C~1vXY      
2015 06  11.54945  21 27 19.824  +01 52 03.29  21.2i 14LO28    F51  C~1vXY      
2015 06  11.56232  21 27 19.809  +01 52 03.80  21.3i 14LO28    F51  C~1vXY      
2015 07  08.53208  21 25 57.654  +01 56 19.05  21.1i 14LO28    F51  C~1vXY      
2015 07  08.54485  21 25 57.600  +01 56 19.01  21.2i 14LO28    F51  C~1vXY      
2015 07  08.55772  21 25 57.554  +01 56 19.02  21.2i 14LO28    F51  C~1vXY      
2015 07  08.57045  21 25 57.496  +01 56 19.05  21.2i 14LO28    F51  C~1vXY      
2015 07  12.45355  21 25 41.918  +01 56 19.20  21.4w 14LO28    F51  C~1vXY      
2015 07  12.46635  21 25 41.866  +01 56 19.14  21.3w 14LO28    F51  C~1vXY      
2015 07  12.47919  21 25 41.809  +01 56 19.12  21.4w 14LO28    F51  C~1vXY      
2015 07  12.49206  21 25 41.757  +01 56 19.11  21.3w 14LO28    F51  C~1vXY      

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    -0.17       0.00    -0.03
  2   0.0000     -0.42     0.23       0.07     0.07
  3   0.0001     -1.57    -0.05      -0.03     0.01
  4   0.0001     -2.25     0.04      -0.16    -0.09
  5   1.9687  10351.36     0.10    3915.52    -0.11
  6   1.9687  10350.28    -0.14    3915.86     0.21
  7   1.9687  10349.65     0.05    3915.54    -0.12
  8   1.9688  10348.71    -0.11    3915.54    -0.12
  9   2.9513  15649.92    -0.07    5881.31     0.19
 10   2.9514  15645.49     0.01    5881.36     0.06
 11   2.9515  15644.64    -0.02    5881.53     0.20
 12   3.7457  24542.46     0.01    6637.47    -0.10
 13   3.7457  24542.16    -0.12    6637.95     0.06
 14   3.7458  24542.09    -0.03    6638.28     0.06
 15   3.7458  24541.89    -0.07    6638.56     0.02
 16   3.8333  23455.68     0.08    7389.12     0.03
 17   3.8333  23454.99     0.07    7389.35     0.03
 18   3.8333  23454.28     0.03    7389.52    -0.04
 19   3.8334  23453.68     0.11    7389.80    -0.02
 20   3.9589  20304.75    -0.03    7880.85    -0.02
 21   3.9590  20303.88     0.06    7880.85    -0.05
 22   3.9590  20302.96     0.09    7880.79    -0.13
 23   3.9590  20301.88    -0.03    7880.89    -0.05
 24   3.9888  19489.13 (  -0.28)   7874.07 (   0.75)
 25   3.9889  19488.37    -0.06    7873.29     0.01
 26   3.9889  19487.56     0.12    7873.19    -0.06
 27   4.7724  29231.67     0.17    8875.95    -0.22
 28   4.7724  29231.13    -0.04    8876.48    -0.03
 29   4.7725  29230.71    -0.12    8876.63    -0.21
 30   4.7725  29230.65     0.15    8877.19     0.01
 31   4.8463  28105.09    -0.01    9481.63     0.15
 32   4.8464  28104.29    -0.07    9481.83     0.10
 33   4.8464  28103.62     0.00    9482.04     0.07
 34   4.8464  28102.78    -0.10    9482.32     0.12
 35   4.8571  27875.14    -0.01    9550.13     0.04
 36   4.8571  27874.37    -0.00    9550.29    -0.01
 37   4.8572  27873.53    -0.05    9550.52    -0.01
 38   4.8572  27872.76    -0.02    9550.74    -0.01

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.

14LO28    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        43.038    43.054    43.023
ecceobj         0.122     0.122     0.122
incobj         25.624    25.624    25.625
qmin           37.372    37.365    37.354
qmax           48.881    48.932    48.869
amean          42.997    43.010    42.973
amin           42.662    42.671    42.633
amax           43.364    43.389    43.353
emean           0.113     0.114     0.113
emin            0.099     0.100     0.099
emax            0.128     0.129     0.128
imean          27.281    27.279    27.277
imin           26.909    26.902    26.889
imax           27.644    27.638    27.643
excite_mean     0.472     0.472     0.472
fracstop        1.000     1.000     1.000
cjmean          2.810     2.810     2.810

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       183.7     183.8     183.4
kozaiamp        179.9     180.0     179.9