Generic Mission Pr Generic Mission Process ocess Modelling - PowerPoint PPT Presentation

Generic Mission Pr Generic Mission Process ocess Modelling Modelling for Near Ear Near Earth As h Asteroid Pr id Prospecting ospecting by Tim Broadbent UNSW Sydney – Satellite Systems Engineering 3 rd Off Earth Mining Forum 20 - 21 September 2017, UNSW Sydney

Generic Mission Process Modelling for Near Earth Asteroid Prospecting The Introduction  MEngSc Thesis  Satellite Systems Engineering at UNSW  Satellite Controller (Optus Satellite) … I fly spacecraft - 24h - 365d  My perspective is Satellite Operations  Statistics and processes 3 rd Off Earth Mining Forum 20 - 21 September 2017, UNSW Sydney

Generic Mission Process Modelling for Near Earth Asteroid Prospecting The Problem  Progress is slow Industry  Gaps need to be bridged Academia Business  Greater emphasis on prospecting 3 rd Off Earth Mining Forum 20 - 21 September 2017, UNSW Sydney

Generic Mission Process Modelling for Near Earth Asteroid Prospecting The Scope  Near Earth Asteroids  100m – 1km  Low ∆ v  Frequent opportunities  No specific spacecraft size  No specific mission type (e.g. flyby or sample return) 3 rd Off Earth Mining Forum 20 - 21 September 2017, UNSW Sydney

Generic Mission Process Modelling for Near Earth Asteroid Prospecting The Objective  Generalise the prospecting mission process  Target selection  Mission design  Launch & transfer  In-situ analysis  Identify opportunities for increased automation 3 rd Off Earth Mining Forum 20 - 21 September 2017, UNSW Sydney

Generic Mission Process Modelling for Near Earth Asteroid Prospecting The Stats  ≈ 8,000 NEAs (100m-1km)  ≈ 500 more are discovered each year (>140m) 3 rd Off Earth Mining Forum 20 - 21 September 2017, UNSW Sydney

Generic Mission Process Modelling for Near Earth Asteroid Prospecting The Stats Abs. Magnitude vs Diameter Abs. Magnitude vs Diameter  Anything brighter than H = 21 16 12 “Good” data is always > 100m 14 18 Abolute Magnitude (H) Abolute Magnitude (H) 16 20 21 18  Only ≈ 12% have documented 22 diameters or rotation rates 20 24  4% have both 22 0.0 0.2 0.4 0.6 0.8 1.0 0.0 1.0 2.0 3.0 4.0 5.0 Diameter (km) Diameter (km)  50% at H < 16 (i.e. > 1km) 3 rd Off Earth Mining Forum 20 - 21 September 2017, UNSW Sydney

Generic Mission Process Modelling for Near Earth Asteroid Prospecting The Stats 1) 74% have inclinations < 25° 2) 93% have Synodic Period < 5 years 3) 49% are in Apollo orbits %’s of NEAs with H < 21 from JPLs Small Body Database query tool (13/9/17)  69% meet the first 2 criteria  33% meet all 3 criteria 3 rd Off Earth Mining Forum 20 - 21 September 2017, UNSW Sydney

Generic Mission Process Modelling for Near Earth Asteroid Prospecting O F The Mission NEAR (1996-2001) $250m Deep Space 1 (1998-2001) $150m  F lyby ( $ ) S R F  1D mass, shape imagery, rotation  O rbiter ( $$ ) Hayabusa (2003-2010) $300m Chang’e 2 (2010-2012) $100m  3D mass, surface spectrography O O/L  L ander / S ample R eturn ( $$$ )  Geology / minerology / chemistry Dawn (2007- …) $500m Rosetta (2004-2016) $2b S R S R 3 rd Off Earth Mining Forum Hayabusa 2 (2014- …) $150m OSIRIS Rex (2016- …) $1b

Generic Mission Process Modelling for Near Earth Asteroid Prospecting The Process 3 rd Off Earth Mining Forum 20 - 21 September 2017, UNSW Sydney

Generic Mission Process Modelling for Near Earth Asteroid Prospecting The Process 3 rd Off Earth Mining Forum 20 - 21 September 2017, UNSW Sydney

Generic Mission Process Modelling for Near Earth Asteroid Prospecting 1620 - Geographos The Modelling  Pre-mission  Light curve  Radar Doppler 25143 - Itokawa  Mid/post-mission 3 rd Off Earth Mining Forum 20 - 21 September 2017, UNSW Sydney

Generic Mission Process Modelling for Near Earth Asteroid Prospecting The Solution(s)  Integrated process models (e.g. BPMN 2.0)  Automated cataloguing  Model generation and refinement  Swarm-focussed TT&C software 3 rd Off Earth Mining Forum 20 - 21 September 2017, UNSW Sydney

Generic Mission Process Modelling for Near Earth Asteroid Prospecting The End Thank you for coming Any Questions? 3 rd Off Earth Mining Forum 20 - 21 September 2017, UNSW Sydney