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: 03LD7
# Created Sun Dec 22 02:08:30 2024
# Orbit generated from Bernstein formalism
# Fitting 5 observations of 5
# Arc: 36.19d
# First observation: 2003/06/01
# Last observation: 2003/07/07
Preliminary a, adot, b, bdot, g, gdot:
-0.000000 0.033786 -0.000000 -0.000475 0.026355 0.000000
# WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution
# WARNING Fitting with energy constraint
# Chi-squared of fit: 2.23 DOF: 5 RMS: 0.12
# Min/Max residuals: -0.15 0.15
# Exact a, adot, b, bdot, g, gdot:
1.552094E-05 2.449708E-02 -5.861385E-07 -5.866467E-04 2.485260E-02 4.733036E-03
# Covariance matrix:
5.3574E-11 7.5718E-08 -8.8091E-13 8.9495E-10 1.2663E-08 -2.6154E-07
7.5718E-08 1.0859E-04 -1.2652E-09 1.2848E-06 1.8122E-05 -3.9250E-04
-8.8091E-13 -1.2652E-09 5.1602E-13 -2.0161E-11 -2.1102E-10 4.6347E-09
8.9495E-10 1.2848E-06 -2.0161E-11 1.5337E-08 2.1433E-07 -4.6906E-06
1.2663E-08 1.8122E-05 -2.1102E-10 2.1433E-07 3.0268E-06 -6.4366E-05
-2.6154E-07 -3.9250E-04 4.6347E-09 -4.6906E-06 -6.4366E-05 1.9705E-03
# lat0 lon0 xBary yBary zBary JD0
1.906902 -111.441830 -0.034347 0.033849 -1.015981 2452791.722443
# Heliocentric elements and errors
Epoch: 2452790.5000 = 2003/05/31
Mean Anomaly: 63.85165 +/- 74.076
Argument of Peri: 39.97423 +/- 200.057
Long of Asc Node: 122.27670 +/- 15.992
Inclination: 2.30823 +/- 0.477
Eccentricity: 0.19972577 +/- 1.7604
Semi-Major Axis: 43.51365051 +/- 17.2006
Time of Perihelion: 2434195.0655 +/- 18542.4
Perihelion: 34.82285330 +/- 77.8294
Aphelion: 52.20444773 +/- 79.3333
Period (y) 287.0427 +/- 170.20
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -15.04223205 +/- 1.0293
Ecliptic Y -38.38653692 +/- 2.6203
Ecliptic Z 1.33889523 +/- 0.0937
Ecliptic XDOT 0.00231471 +/- 0.0026
Ecliptic YDOT -0.00147872 +/- 0.0043
Ecliptic ZDOT -0.00004706 +/- 0.0001
# Distances at JD0 (AU)
Heliocenter to KBO 41.25030427 +/- 2.4671
Geocenter to KBO 40.23723890 +/- 2.8167
# Hcoef: 6.91
The following table shows the complete astrometric record for 03LD7. 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 (03LD7) followed by the observatory code and reference code for the source of the astrometry.
2003 06 01.22170 16 28 34.42 -19 50 49.7 21.9R 03LD7 807 Ci2139 2003 06 02.16444 16 28 29.58 -19 50 39.5 03LD7 807 Ci2139 2003 06 02.22616 16 28 29.28 -19 50 38.8 03LD7 807 Ci2139 2003 07 07.32863 16 25 45.23 -19 45 16.6 23.5R 03LD7 568 Ci2707 2003 07 07.40779 16 25 44.94 -19 45 15.8 03LD7 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 0.01 0.00 0.04
2 0.0026 -69.04 -0.15 -0.48 -0.06
3 0.0028 -73.33 0.14 -0.45 0.01
4 0.0989 -2410.61 -0.15 -45.07 -0.15
5 0.0991 -2414.78 0.15 -44.93 0.15
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.
03LD7 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