Overview of ISECG Work: Expanding the Definition of the Lunar Exploration Scenario
Ryan Whitley April 10th, 2014 ISECG Mission Scenario
Low-Earth Orbit 2020 2030 International Space Station Robotic Mission Commercial or Government-Owned Platforms Human Mission Beyond Low-Earth Orbit Cargo Mission Test Missions
Asteroid Redirection Rosetta Hayabusa-2 OSIRIS-REx (Sample Return) (Sample Return) Explore Near Earth Asteroid Near-Earth Objects Apophis Extended Staging Post for Crew Duration to Lunar Surface Lunar Vicinity Crew Missions Potential Commercial Opportunities
LADEE Luna 25 Luna 26 Luna 27 RESOLVE SELENE-2 Luna 28/29 SELENE-3 Human-Assisted (Sample Sample Return Humans to Lunar Surface Chandrayaan-2 Return) Moon Potential Commercial Opportunities
Human-Assisted Sample Return Sustainable Human MAVEN ISRO Mars ExoMars InSight ExoMars Mars JAXA Mars Sample Return Mission Missions to the Orbiter Mission 2016 2018 2020 Mars Opportunities Mars System Mars Precursor Human Scale EDL Test Mission Opportunities
Multi-Destination Small Human Transportation Cargo Surface Capabilities Initial Lander Mobility (Planned and Conceptual) Cargo Delivery
Evolvable Orion Russian Advanced Deep Space Orion Orion & Icon indicates first use opportunity. & Piloted Electric & SLS Crewed SLS Commercial/Institutional launchers not shown. Habitat SLS Propulsion (Upgrade) Lunar (Upgrade) System Lander Revisi ng Approach to Lunar Explora on Scenario
Two parts to lunar surface scenario expansion ac vity: ① Update lunar lander transporta on architecture ② Update surface strategy using reference surface Global Point of Departure (GPoD) architecture
Key Considerations
Human transporta on op ons tend to drive overall cost of des na on explora on. Mul ple architectural mission op ons are being evaluated to characterize and score based on key Figures of Merit such as: § Cost § Performance (Capabili es and Mission Objec ves Sa sfac on) § Technology Development § Extensibility § Mission Risk
Updated approach to surface ac vi es will be informed and developed based on down select of most a rac ve transporta on architecture op ons. More to come in later GER workshops in Japan (July) and Europe (Oct) this year. 3 Lunar Surface Access Trade Space
The lunar surface trade space is divided between transporta on op ons and lander proper es within the context of u lizing an evolvable deep space habitat as a staging post.
Transportation Options Lander Properties
Lunar Orbit Lander Crew Size Lander eDSH Staging Launch Lander Stage Inser on (LOI) Drop Stage Reusability (to surface / Hab. Loca on Vehicle In-Space Op ons Propulsion Op ons on orbit) (days) NASA SLS LV With Hypergolic DRO LOI by Lander Hypergols None 2/2 0 (Block 1B) Drop Stage
E-M L1/ With Evolved Crew ESA LV LOI by LV LOX/CH 3/1 3 L2 4 Hyper. Drop Stage Module
LOI 0 Without Drop Crew Md. & HLO JAXA LV LOX/LH 4/0 7 (Long Transfer) 2 Stage / 2-Stage Refuel AM
SEP Used for Crew Mod. LLO Roscosmos LV Long Transfer AM & DM
Commercial Launch Vehicles
DRO LLO
L2
The trade space can be tailored by the interna onal partners to meet a variety of core objec ves and used to iden fy scenarios from which a viable human lunar campaign is achievable. Example Architecture for Extensibility Lander LLO Staging Loca on
3 d Lander
MOON Lifetime
4 4 4 4 CH CH
eDSH 2-3 hrs 2-3 hrs LLO CH 4 Transit Transit 4 CH Moon Spiral
E-M L1/L2 by SEP
4 4 CH
Lander 5 d Long Transit Transit Example architecture features extensibility of asteroid retrieval mission solar electric propulsion and Orion European Service Module. Includes Orion SEP poten al reuse of en re lander with logis cs/ 5 d Earth propellant resupply (commercial opportunity). Transit Spiral LEO by SEP
Lander
Direct LSM Lander Service Module (Drop Stage) Earth Entry
CH4 LM Lander Module including Habita on
SLS SLS Block 1B Block 1B EARTH