Orbit Fit and Astrometric record for 03FL127

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: 03FL127   
# Created Tue Oct 24 01:37:22 2017
# Orbit generated from Bernstein formalism
# Fitting   20 observations of   20
# Arc:  12.06y
# First observation: 2001/02/20
#  Last observation: 2013/03/14
Preliminary a, adot, b, bdot, g, gdot:
   0.000192   0.017599  -0.000002  -0.000947   0.021781   0.000000
# Chi-squared of fit:    38.81 DOF:   34 RMS:  0.25
# Min/Max residuals:    -0.48    0.61
# Exact a, adot, b, bdot, g, gdot:
  1.326297E-05  1.780868E-02  9.318288E-07 -9.570618E-04  2.181529E-02  2.560821E-03
# Covariance matrix:
  4.5953E-13 -1.6125E-13 -1.3912E-14  7.8396E-15  1.2950E-13 -6.2314E-13
 -1.6125E-13  1.0773E-13  9.0841E-15 -5.6598E-15  8.5716E-14  4.5677E-13
 -1.3912E-14  9.0841E-15  1.5426E-13 -2.1321E-14  4.4824E-15  4.0531E-14
  7.8396E-15 -5.6598E-15 -2.1321E-14  5.8054E-15 -4.6019E-15 -2.5284E-14
  1.2950E-13  8.5716E-14  4.4824E-15 -4.6019E-15  6.1180E-13  3.9223E-13
 -6.2314E-13  4.5677E-13  4.0531E-14 -2.5284E-14  3.9223E-13  2.0409E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -1.676565  162.451629    0.176391   -0.028679   -0.974007  2451960.908107
# Heliocentric elements and errors
Epoch:              2451960.5000  =  2001/02/20
Mean Anomaly:          135.80821 +/-     0.029
Argument of Peri:       56.92175 +/-     0.017
Long of Asc Node:      314.16129 +/-     0.002
Inclination:             3.48575 +/-     0.000
Eccentricity:         0.23630393 +/-    0.0001
Semi-Major Axis:     39.31408456 +/-    0.0040
Time of Perihelion: 2417994.5157 +/-       5.1
Perihelion:          30.02401195 +/-    0.0041
Aphelion:            48.60415718 +/-    0.0057
Period (y)              246.5077 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -44.55932323 +/-    0.0016
Ecliptic Y           14.28167294 +/-    0.0005
Ecliptic Z           -1.34107558 +/-    0.0001
Ecliptic XDOT        -0.00098514 +/-    0.0000
Ecliptic YDOT        -0.00203192 +/-    0.0000
Ecliptic ZDOT        -0.00012928 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   46.81130155 +/-    0.0015
Geocenter to KBO     45.83941019 +/-    0.0016
# Hcoef:  6.22

The following table shows the complete astrometric record for 03FL127. 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 (03FL127) followed by the observatory code and reference code for the source of the astrometry.

2001 02  20.407364 10 52 42.63   +05 20 18.6         03FL127   645  C~1S6p      
2001 02  20.408193 10 52 42.63   +05 20 18.6         03FL127   645  C~1S6p      
2001 02  20.410681 10 52 42.62   +05 20 18.6         03FL127   645  C~1S6p      
2003 03  31.24892  10 57 29.60   +04 43 35.2   22.8R 03FL127   695  Ch8427      
2003 04  01.20889  10 57 26.08   +04 43 57.7         03FL127   695  Ch8427      
2003 04  01.30535  10 57 25.75   +04 44 00.1         03FL127   695  Ch8427      
2003 04  20.98248  10 56 23.59   +04 50 43.7   21.1R 03FL127   304  Ch8427      
2003 04  21.04435  10 56 23.45   +04 50 45.2         03FL127   304  Ch8427      
2003 05  31.28477  10 55 34.42   +04 56 55.4   23.4R 03FL127   568  Ci1570      
2003 06  01.27935  10 55 34.73   +04 56 55.2         03FL127   568  Ci1570      
2004 02  22.34802  11 03 40.16   +04 01 50.2   22.7R 03FL127   695  Ck4311      
2004 02  22.39985  11 03 39.94   +04 01 51.4         03FL127   695  Ck4311      
2004 03  16.21639  11 02 05.34   +04 11 28.5   22.7R 03FL127   695  Ck4311      
2004 03  16.28074  11 02 05.09   +04 11 30.3         03FL127   695  Ck4311      
2005 03  09.30108  11 06 13.79   +03 42 09.9   22.7R 03FL127   695  Cn0206      
2005 03  10.29166  11 06 09.68   +03 42 35.6         03FL127   695  Cn0206      
2005 03  10.39291  11 06 09.24   +03 42 37.9         03FL127   695  Cn0206      
2013 03  13.35452  11 34 25.72   +00 16 39.4   22.9R 03FL127   695  C~0ud4      
2013 03  14.33104  11 34 21.74   +00 17 04.9         03FL127   695  C~0ud4      
2013 03  14.43968  11 34 21.31   +00 17 07.8         03FL127   695  C~0ud4      

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    -0.07       0.00    -0.34
  2   0.0000      0.00    -0.02       0.00    -0.33
  3   0.0000     -0.14     0.01      -0.06    -0.39
  4   2.1050   4805.23    -0.07    -399.52     0.15
  5   2.1076   4747.97    -0.39    -398.86     0.26
  6   2.1079   4742.49    -0.09    -398.53     0.57
  7   2.1617   3729.20     0.21    -380.90     0.08
  8   2.1619   3726.69     0.41    -380.31     0.61
  9   2.2721   2907.86     0.13    -318.17    -0.30
 10   2.2748   2912.22    -0.22    -316.58    -0.48
 11   3.0033  10893.58     0.25    -587.38     0.13
 12   3.0034  10890.07     0.20    -587.54     0.04
 13   3.0659   9357.93    -0.18    -598.57    -0.03
 14   3.0660   9353.78    -0.00    -598.35     0.22
 15   4.0463  13479.00    -0.02    -792.47    -0.05
 16   4.0490  13412.04    -0.04    -792.45     0.24
 17   4.0492  13405.05    -0.10    -792.86    -0.11
 18  12.0574  42192.66    -0.06   -2355.45    -0.38
 19  12.0600  42125.03    -0.10   -2355.11    -0.05
 20  12.0603  42117.66     0.15   -2354.94     0.16

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.

03FL127    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.197    39.209    39.185
ecceobj         0.239     0.239     0.239
incobj          3.495     3.495     3.495
qmin           29.237    29.195    29.272
qmax           50.280    50.244    50.245
amean          39.455    39.455    39.455
amin           39.016    39.049    39.008
amax           39.945    39.975    39.983
emean           0.240     0.242     0.239
emin            0.221     0.222     0.217
emax            0.259     0.258     0.257
imean           3.919     3.455     4.270
imin            2.783     2.424     3.117
imax            5.574     5.523     5.441
excite_mean     0.250     0.250     0.250
fracstop        1.000     1.000     1.000
cjmean          2.980     2.980     2.980

libcent 0       180.3     179.5     179.6
libamp  0        72.1      65.8      78.5
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        91.8      91.5      90.7
kozaiamp         46.7      56.6      39.1