This work will provide research and trajectory design analysis to develop a NASA Cis-Lunar / Earth-Moon Libration Orbit Reference and Web Application. A compendium of feasible Earth-Moon libration transfers and orbits, it will bring multi-body orbits to a larger venue and offer design options from a different perspective, no longer thinking only in terms of point designs, but interactive exploration with insight into the larger space. It will provide the analyst with efficient access to user-defined and standard design parameters to allow efficient and fully informed decisions regarding robotic and habitat missions in cis-lunar space.
To finalize a comprehensive NASA Cis-Lunar / Earth-Moon Libration Orbit Reference and Web Application begun using FY13 IRAD funding approved in May 2013. This GSFC reference will be available as a searchable web-based application to explore design options and generate essential trajectory data permitting both astrodynamics experts and non-experts (proposal teams and systems designers) to determine useable trajectories in the Earth-Moon (EM) system. It can be used by HQ management, JSC’s DSH habitat concept teams, HEOMD, and other analysis teams to develop designs without performing numerous time-consuming point designs or trades. Completing such a reference would maintain GSFC’s leadership role in EM libration orbit design and operations while providing other study teams with instant designs and quotes on mission design parameters such as delta-V (DV), propellant budgets, mission durations, launch requirements, and libration-orbit parameters. The related objectives of this study fall into four specific categories: detailed analysis of transfers; orbital maintenance and evolution; and application to a variety of other mission types, e.g. distant retrograde orbits useful for human exploration.
NASA has recently invested major time commitments in determining how to operate missions in Earth-Moon (cis-lunar) regions, specifically the Earth-Moon Libration orbits, in lunar orbit, Distant Retrograde Orbits (DROs), and on the lunar surface. Recent NASA concept calls from AA/SMD Mars Exploration Program, working with the AA/HEOMD, OCT, and the OCS along with HQ guidelines requested design analysis for the use of the Earth-Moon (EM) libration orbits for various robotic and human missions. For example, the 2012 NASA Mars concept call stated “a particular interest in analyses of trajectories of Earth-Moon L2.” Additionally there are many requests (via JSC, HQ, GSFC, and contractors such as LM and Boeing) for EM libration orbit analysis to design long-duration human exploration missions, habitats, and to understand lunar way-points. The recent analysis of the ARRM mission required both libration orbit transfer design and DROs. The infusion of EM libration orbits into mission designs is part of almost every NASA guideline.
There are an infinite design possibility of Earth-moon libration orbits, This tool and web site provides the user( NASA or contractor) a way to generate multiple trades of DVs, fuel, Mission concepts, Mission orbit types, and durations in an easy GUI application. This tool reduces the cost of analysis to preform these trades.
Same as to NASA unfunded and planned missions. This tool reduces the cost of analysis to preform Earth-moon mission orbit trades.More »
|Organizations Performing Work||Role||Type||Location|
|Goddard Space Flight Center (GSFC)||Lead Organization||NASA Center||Greenbelt, MD|
|Purdue University||Supporting Organization||Industry|