Mission Description

• Earth departure orbit is circular at an altitude of 1,000km
  • Spiral escape to C3=0
  • Depart from Earth sphere of influence (SOI) on Julian date 2457306.5 (10/11/2015) – fixed at optimal
  • Arrive at Jupiter SOI on Julian date 2459132.75 (10/10/2020) -- fixed
  • Spiral descent to circular Jupiter parking orbit at an altitude of 600,989 km (~ Europa altitude)
  • Initial mass:  4310.0 kg (fixed)
  • Propulsion and power system mass (alpha) = 50 kg/kW
  • Tankage fraction = 0.1,  (Tank mass/propellant mass)
  • Propulsion Model:  simple electric engine,
  • Isp 6400 sec, (optimal +/- 100sec)
  • 0.65 efficiency
  • Power Model: constant power (nuclear), optimized to 24.85 kW
  • Objective function:  final mass
  • Originally modeled using CHEBYTOP

  Input/Output files

  CHEBYTOPv6.zip (download)

  MALTO4_3_3.zip (download)

  Mystic9_0_0.zip (download)

  VARITOP10_123.zip (download)

  All Reference Case 17: 5-years to Jupiter/Europa Orbiter Files (download zip)