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 Thu Nov 21 02:08:25 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     32 observations of     32
# Arc:  20.08y
# First observation: 2001/02/20
#  Last observation: 2021/03/20
# Chi-squared of fit:    56.31 DOF:     58 RMS:  0.23
# Min/Max residuals:    -0.42    0.66
# Exact a, adot, b, bdot, g, gdot:
  1.397777E-05  1.780850E-02  1.193598E-06 -9.571366E-04  2.181603E-02  2.561038E-03
# Covariance matrix:
  2.7391E-13 -4.1741E-14 -5.1591E-15  1.9279E-15  1.7603E-13 -1.0473E-13
 -4.1741E-14  1.8599E-14  2.0833E-15 -9.7345E-16  1.4539E-14  5.4030E-14
 -5.1591E-15  2.0833E-15  1.1783E-13 -8.4317E-15 -9.3180E-16  6.4134E-15
  1.9279E-15 -9.7345E-16 -8.4317E-15  1.0201E-15 -6.2169E-16 -2.9848E-15
  1.7603E-13  1.4539E-14 -9.3180E-16 -6.2169E-16  4.5778E-13  3.9494E-14
 -1.0473E-13  5.4030E-14  6.4134E-15 -2.9848E-15  3.9494E-14  1.6561E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   -1.676565  162.451629    0.176391   -0.028679   -0.974008  2451960.908107
# Heliocentric elements and errors
Epoch:              2451960.5000  =  2001/02/20
Mean Anomaly:          135.81898 +/-     0.024
Argument of Peri:       56.90769 +/-     0.011
Long of Asc Node:      314.16366 +/-     0.001
Inclination:             3.48598 +/-     0.000
Eccentricity:         0.23638685 +/-    0.0001
Semi-Major Axis:     39.30965097 +/-    0.0036
Time of Perihelion: 2417997.5694 +/-       7.6
Perihelion:          30.01736650 +/-    0.0036
Aphelion:            48.60193545 +/-    0.0050
Period (y)              246.4660 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -44.55784938 +/-    0.0014
Ecliptic Y           14.28117253 +/-    0.0004
Ecliptic Z           -1.34101803 +/-    0.0000
Ecliptic XDOT        -0.00098512 +/-    0.0000
Ecliptic YDOT        -0.00203182 +/-    0.0000
Ecliptic ZDOT        -0.00012928 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   46.80965939 +/-    0.0013
Geocenter to KBO     45.83779696 +/-    0.0014
# Hcoef:  6.41

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      
2016 03  12.47889  11 44 58.57   -01 00 21.8   23.2z 03FL127   T09  C~8AcS      
2016 03  12.49650  11 44 58.50   -01 00 21.3   22.7z 03FL127   T09  C~8AcS      
2016 03  12.50459  11 44 58.48   -01 00 21.1   22.7z 03FL127   T09  C~8AcS      
2016 03  12.51538  11 44 58.43   -01 00 20.8   22.6z 03FL127   T09  C~8AcS      
2016 03  12.52346  11 44 58.40   -01 00 20.6   22.5z 03FL127   T09  C~8AcS      
2016 04  08.47679  11 43 12.00   -00 48 50.0   23.7r 03FL127   T09  C~89L1      
2016 04  08.48815  11 43 11.96   -00 48 49.9   23.7r 03FL127   T09  C~89L1      
2016 04  08.49027  11 43 11.94   -00 48 49.9   23.5r 03FL127   T09  C~89L1      
2016 04  08.49664  11 43 11.93   -00 48 49.5   23.8r 03FL127   T09  C~89L1      
2021 03  20.276490 12 01 49.210  -03 03 34.52  23.4G 03FL127   G37  C~4hia      
2021 03  20.309000 12 01 49.072  -03 03 33.64        03FL127   G37  C~4hia      
2021 03  20.336970 12 01 48.971  -03 03 32.75        03FL127   G37  C~4hia      

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    -0.35       0.00    -0.28
     2   0.0000      0.00    -0.30       0.00    -0.30
     3   0.0000      0.00    -0.29       0.00    -0.36
     4   2.1050      0.00    -0.00       0.00     0.14
     5   2.1076      0.00    -0.26       0.00     0.36
     6   2.1079      0.00     0.14       0.00     0.53
     7   2.1617      0.00     0.27       0.00    -0.05
     8   2.1619      0.00     0.66       0.00     0.37
     9   2.2721      0.00     0.09       0.00    -0.39
    10   2.2748      0.00    -0.30       0.00    -0.42
    11   3.0033      0.00     0.23       0.00     0.03
    12   3.0034      0.00     0.15       0.00    -0.03
    13   3.0659      0.00    -0.17       0.00     0.03
    14   3.0660      0.00     0.09       0.00     0.19
    15   4.0463      0.00    -0.02       0.00    -0.04
    16   4.0490      0.00     0.09       0.00     0.23
    17   4.0492      0.00    -0.11       0.00    -0.07
    18  12.0574      0.00     0.11       0.00    -0.31
    19  12.0600      0.00     0.20       0.00     0.01
    20  12.0603      0.00     0.50       0.00     0.10
    21  15.0556      0.00    -0.16       0.00     0.06
    22  15.0557      0.00    -0.12       0.00     0.11
    23  15.0557      0.00     0.08       0.00     0.11
    24  15.0557      0.00    -0.00       0.00     0.13
    25  15.0558      0.00     0.05       0.00     0.12
    26  15.1296      0.00    -0.19       0.00     0.22
    27  15.1296      0.00    -0.16       0.00     0.04
    28  15.1296      0.00    -0.34       0.00    -0.01
    29  15.1296      0.00    -0.13       0.00     0.24
    30  20.0763      0.00     0.01       0.00    -0.34
    31  20.0764      0.00    -0.06       0.00    -0.29
    32  20.0765      0.00     0.15       0.00    -0.12

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    39.197    39.197
ecceobj         0.239     0.239     0.239
incobj          3.495     3.495     3.495
qmin           29.245    29.245    29.240
qmax           50.300    50.314    50.272
amean          39.455    39.455    39.455
amin           39.024    39.029    39.018
amax           39.950    39.958    39.947
emean           0.240     0.240     0.240
emin            0.221     0.221     0.221
emax            0.259     0.259     0.259
imean           3.919     3.918     3.920
imin            2.783     2.782     2.784
imax            5.576     5.578     5.574
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     179.8     180.2
libamp  0        71.6      72.0      72.1
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      91.8      91.8
kozaiamp         46.7      46.7      46.6