tweaked the Basic_Simulation example to try to isolate bug

examples/Basic_Simulation/initial_conditions.py

@@ -36,7 +36,8 @@
 from numpy.random import default_rng
 
 # Initialize the simulation object as a variable. Arguments may be defined here or through the sim.run() method.
-sim = swiftest.Simulation(fragmentation=True, minimum_fragment_mass = 2.5e-11, mtiny=2.5e-8)
+#sim = swiftest.Simulation(fragmentation=True, minimum_fragment_mass = 2.5e-11, mtiny=2.5e-8)
+sim = swiftest.Simulation()
 
 # Add the modern planets and the Sun using the JPL Horizons Database.
 sim.add_solar_system_body(["Sun","Mercury","Venus","Earth","Mars","Jupiter","Saturn","Uranus","Neptune","Pluto"])
@@ -73,7 +74,8 @@
 
 sim.add_body(name=name_tp, a=a_tp, e=e_tp, inc=inc_tp, capom=capom_tp, omega=omega_tp, capm=capm_tp)
 # Display the run configuration parameters.
+sim.write_param()
 sim.get_parameter()
 
 # Run the simulation. Arguments may be defined here or thorugh the swiftest.Simulation() method.
-sim.run(tstart=0.0, tstop=1.0e3, dt=0.01, tstep_out=1.0e0, dump_cadence=0)
+sim.run(tstart=0.0, tstop=1.0e3, dt=0.01, istep_out=100, dump_cadence=10)