Update for ky

julia/find_neptune.jl

@@ -0,0 +1,63 @@
+using Thesis
+using Dates
+using SPICE
+using LinearAlgebra
+using PlotlyJS: savefig
+
+try
+  furnsh("../../spice_files/naif0012.tls")
+  furnsh("../../spice_files/de430.bsp")
+catch
+  furnsh("spice_files/naif0012.tls")
+  furnsh("spice_files/de430.bsp")
+end
+
+"""
+The cost function for the mission
+"""
+function easy_cost(m::Union{Mission, Mission_Guess}, C3::Float64, v∞::Float64)
+  norm_mass = (m.start_mass - prop(m)[7]) / m.start_mass
+  norm_C3 = ( m.launch_v∞ ⋅ m.launch_v∞ ) / C3
+  norm_v∞ = norm(m.phases[end].v∞_in) / v∞
+  return norm_mass + norm_C3# + norm_v∞
+end
+
+# Using some fairly realistic parameters now
+sc = Sc("mySat", 200., 3200., 0.00025, 1, 1.0)
+fuel = 3300.
+max_c3 = 200.
+max_v∞ = 500.
+voyager_launch = DateTime(1977,9,5)
+launch_window = voyager_launch - Year(2), voyager_launch + Year(2)
+latest_arrival = voyager_launch + Year(25)
+println("Max thrust at full bore: $(fuel/(mfr(sc)*Thesis.year)) years")
+println("Max mission length: $((latest_arrival - launch_window[1]).value/(1000Thesis.year)) years")
+
+# Convenience function for these tests
+Thesis.mbh(fbs) = mbh(fbs,
+                      sc,
+                      sc.dry_mass + fuel,
+                      launch_window,
+                      max_c3,
+                      max_v∞,
+                      latest_arrival,
+                      easy_cost,
+                      search_patience=20_000,
+                      drill_patience=200,
+                      verbose=true)
+
+function log(m::Mission, archive::Vector{Mission}, planets::Vector{Body})
+  abbrev = join([ planet.name[1] for planet in planets ])
+  p = plot(m, title="Best $(abbrev) Trajectory")
+  savefig(p,"archive/$(abbrev).html")
+  store(m, "archive/$(abbrev)")
+  store(archive, "archive/$(abbrev)_archive")
+end
+
+log(_::Nothing, _::Vector{Mission}, _::Vector{Body}) = println("No Mission Found...")
+
+planets = [Earth, Jupiter, Saturn, Uranus, Neptune]
+best, archive = mbh(planets)
+log(best, archive, planets)
+
+println("Complete!")