Orbit Fit and Astrometric record for 03LF7

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: 03LF7     
# Created Mon Dec 11 02:37:19 2017
# Orbit generated from Bernstein formalism
# Fitting    6 observations of    6
# Arc:  37.26d
# First observation: 2003/06/01
#  Last observation: 2003/07/08
Preliminary a, adot, b, bdot, g, gdot:
  -0.000001   0.040490  -0.000000  -0.001606   0.030897   0.000000
# WARNING Fitting with energy constraint
# Chi-squared of fit:     2.22 DOF:    7 RMS:  0.11
# Min/Max residuals:    -0.17    0.19
# Exact a, adot, b, bdot, g, gdot:
  1.663157E-05  3.160086E-02 -1.442191E-06 -1.444204E-03  2.946054E-02  7.845145E-03
# Covariance matrix:
  4.9497E-12  6.6084E-09  8.4909E-14 -1.2376E-10  1.1574E-09 -3.4910E-08
  6.6084E-09  1.0560E-05  1.3669E-10 -1.9603E-07  1.8060E-06 -7.3120E-05
  8.4909E-14  1.3669E-10  5.0547E-13 -7.6153E-12  2.3317E-11 -9.7152E-10
 -1.2376E-10 -1.9603E-07 -7.6153E-12  3.7429E-09 -3.3612E-08  1.3220E-06
  1.1574E-09  1.8060E-06  2.3317E-11 -3.3612E-08  3.1116E-07 -1.1563E-05
 -3.4910E-08 -7.3120E-05 -9.7152E-10  1.3220E-06 -1.1563E-05  8.9628E-04
#      lat0       lon0       xBary       yBary       zBary        JD0
   -2.044560 -120.344054   -0.189539   -0.035624   -0.998648  2452791.621843
# Heliocentric elements and errors
Epoch:              2452790.5000  =  2003/05/31
Mean Anomaly:           57.31974 +/-    48.979
Argument of Peri:      130.73148 +/-    48.224
Long of Asc Node:       22.79466 +/-     2.288
Inclination:             3.28555 +/-     0.175
Eccentricity:         0.26094514 +/-    0.9423
Semi-Major Axis:     38.09417211 +/-   16.1602
Time of Perihelion: 2439116.7395 +/-    7798.0
Perihelion:          28.15368312 +/-   37.8306
Aphelion:            48.03466111 +/-   41.2764
Period (y)              235.1235 +/-    149.62
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -17.48025846 +/-    0.3245
Ecliptic Y          -30.22936127 +/-    0.5543
Ecliptic Z           -1.21105210 +/-    0.0229
Ecliptic XDOT         0.00216286 +/-    0.0016
Ecliptic YDOT        -0.00211343 +/-    0.0023
Ecliptic ZDOT        -0.00015995 +/-    0.0001
# Distances at JD0 (AU)
Heliocenter to KBO   34.94052612 +/-    0.5063
Geocenter to KBO     33.94370385 +/-    0.6427
# Hcoef:  7.85

The following table shows the complete astrometric record for 03LF7. 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 (03LF7) followed by the observatory code and reference code for the source of the astrometry.

2003 06  01.12110  15 47 57.31   -22 04 25.3   22.3R 03LF7     807  Ci2139      
2003 06  02.15657  15 47 51.21   -22 04 06.9         03LF7     807  Ci2139      
2003 06  02.21837  15 47 50.86   -22 04 05.7         03LF7     807  Ci2139      
2003 07  07.39482  15 44 56.44   -21 54 28.6   23.6R 03LF7     568  Ci2707      
2003 07  08.31777  15 44 53.07   -21 54 16.4         03LF7     568  Ci2707      
2003 07  08.38144  15 44 52.84   -21 54 15.2         03LF7     568  Ci2707      

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     0.14
  2   0.0028    -86.77    -0.15      -0.43    -0.14
  3   0.0030    -91.78     0.08      -0.32    -0.00
  4   0.0993  -2585.41     0.06      30.61    -0.02
  5   0.1018  -2633.85    -0.03      32.11    -0.17
  6   0.1020  -2637.24    -0.02      32.57     0.19

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.

03LF7    quality flag:0

Type:      ERR2LARGE ERR2LARGE ERR2LARGE

axisobj         0.000     0.000     0.000
ecceobj        -1.000    -1.000    -1.000
incobj         -1.000    -1.000    -1.000
qmin            0.000     0.000     0.000
qmax            0.000     0.000     0.000
amean           0.000     0.000     0.000
amin            0.000     0.000     0.000
amax            0.000     0.000     0.000
emean           0.000     0.000     0.000
emin            0.000     0.000     0.000
emax            0.000     0.000     0.000
imean           0.000     0.000     0.000
imin            0.000     0.000     0.000
imax            0.000     0.000     0.000
excite_mean     0.000     0.000     0.000
fracstop        0.000     0.000     0.000
cjmean          0.000     0.000     0.000

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         0.0       0.0       0.0
kozaiamp          0.0       0.0       0.0