LunarTransferMFD 1.1

Launched at 02.11.2009

LunarTransferMFD is a numerical lunar transfer trajectory calculator. It can be used to compute single impulse lunar transfer trajectories with better accuracy than typical patched conic applications such as IMFD. LunarTransferMFD is based on Broyden's method with numerical forward trajectory model (RKF56). Typical user input parameters are desired time of periapis passage, altitude and flight heading in the periapis.

In the current version, operation is limited in Apollo style flights from the Earth's surface to lunar surface and back. Missions starting from unaligned orbits are not yet supported and many other advanced features are still under work.

LunarTransferMFD can be used only with high thrust vehicles such as Apollo. Low thrust propulsion systems such as ion-engines won't work with LTMFD.


Download 1.1 (~650k)

LunarTransferMFD is using SSE2 instruction set by default. Some older CPUs like Athlon XP doesn't support these instructions. Here is a patch that will replace a DLL with one using standard x86 instruction set. Download SSE2 patch (~190k)




Screen Shots from LTMFD 1.0

TLI Program

TEI Program

IMFD - Space Navigation Computer Version 5.3b

Launched at 15.05.2009

• Map program can be used to display entire solar system and predict the actual course of the vessel with numerical trajectory calculator. The predictor can be also used to predict a hypothetical scenarios as well. This is very useful when planning a free-return trajectories.
  
  
• Course program is a collection of minor navigation programs those will let you to navigate through the solar system to other planets, moons and comets. Primary programs are based on the lambert solver. In the most simplest case only a date of ejection and the Date of arrival is required as an user input.
  
  
• BaseApproach program is designed for Apollo style Moon to Earth return missions. It can be used to target a bases on the Mars and land directly without an orbit insertion. The program will also allow to establish an orbit right over a specific base on a planet so that it is possible to continue the descent on the base. That's very useful when landing on the Moon.
  
  
• Surface Launch program is usefull when starting interplanetary or lunar missions from the planet surface. The program will compute the time to launch window and required launch heading. This program is the only one that doesn't compute any burn guidance data. A vessel specific ascent profile should be used to reach low orbit.
  
  
• Orbit Eject program is required when starting interplanetary missions from the orbit. This program is used in a combination with the other programs to convert the escape information into burn guidance data.

BaseApproach Program

Interplanetary Navigation

Interplanetary MFD related tutorials

Tutorials In French

BaseSyncMFD Version 2.1 - 06.06.2006

Space Navigation Tutorials and Tools

• Rendezvous MFD
• Attitude MFD
• Europa To Callisto Video Tutorial (for new IMFD 5.0)