Modeling Astronaut Decision-Making and Judgment during Lunar Landing

Zarrin Chua

Georgia Institute of Technology31th Soar Workshop

June 2011

CommiteeDr. Karen M. FeighDr. Robert D. BraunDr. Amy R. Pritchett

“I was just absolutely adamant about my God-given right to be wishy-washy

about where I was going to land.” Cdr Neil Armstrong

“ In manned vehicles, the same performance goals come easier in a

system not handicapped by idiosyncrasies of the human being…”

NASA Assoc. Admin. Richard Horner

slide 2

Landing Point Designation (LPD)slide 3

Scan expected landing areaPitch up vehicle

Perceive terrain 1 Search

for a known 2 Receive AFM results

3

Search for site

Selectsite

Maneuverjoystick

Evaluate vehicle state

Reach end 3

Reorient to terrain

Window

PFD

LPD display0

OV

apollo-like

Human Autojudgmentslide 4

Track time remaining

Scan expected landing areaPitch up vehicle

Perceive terrain 1 Search

for a known 2 Receive AFM results

3

Reach end

Reorient to terrain

Window

LPD display0

Partitionmap into zones

Select landing zone

Examine site

Evaluatesite terrain

Selectsite

Pressselection

Pressconfirm

4

5

LPD displayPFDOV display

moderate

Human Autodecision-makingslide 5

Auto Trajectory

Cognitive Model(Soar or Other)

1. Interaction with Auto2. Vehicle Maneuvers3. Targets

1. Terrain properties2. Mission status3. Vehicle state4. HSI display status5. Landing sites (Moderate)

outputs

outputs

is input to

is input to

ALHAT System

Mission scenario

is input to

Comprehensive Landing Model

slide 6

Questions

Is Soar the appropriate tool? What development is needed to model the apollo-like and moderate cases? Can Soar communicate well with other software?

slide 7