(Nov. 9) Safe Active Fault Estimation for Spacecraft

Tentative Agenda: (All Time PST (GMT -0800)) (US and Canada)



10:30 AM: Check-in, Networking

11:00 AM: Welcome/Introduction, Briefing by Exhibitor

11:10 AM: Presentation and Q&A

12:40 PM: Additional Q&A (if needed) / adjourn / Networking.

Disclaimer: The views of the speakers do not represent the views of AIAA or the AIAA Los Angeles Section

(In-person attendance might have better interactive experiences.)

(This event is not sponsored by the Hawthorne Library)

Safe Active Fault Estimation for Spacecraft

In time-critical operations, rapid and autonomous fault estimation may be necessary to ensure mission safety. Active diagnosis using sequences of planned test actions can resolve ambiguity and provide fast identification of underlying faults. However, naïve test actions could endanger the system. To resolve this, we propose an online tree-based planning algorithm which simultaneously selects actions that gather information about active failures and ensures collision avoidance by satisfying probabilistic chance constraints. We demonstrate the real-time performance of our algorithm on a robotic spacecraft simulator, and show with enough planning, we can reliably maintain safety and diagnose faults.

James Ragan

Ph.D. Candidate

Space Engineering at Caltech,

advised by Prof. Soon-Jo Chung

(The speaker will present in-person.)

James Ragan is a Ph.D. Candidate in the space engineering at Caltech, advised by Prof. Soon-Jo Chung, applying planning to spacecraft in domains where fast autonomous responses are necessary, such as fault estimation in deep-space proximity operations and detecting cyberattacks in formation flying. He has received bachelor’s degrees in aerospace engineering as well as astronomy and physics from the University of Washington.

Exhibitor Briefing

Gran Systems

Gran Systems is a company making great systems, founded in 2008, specialises in System Integration and Think Tank, for industries like new space, semiconductor equipment, and medical devices. 

In 2021, our products were featured on NASA’s Small Satellite website, and in 2024, we were highlighted in NASA’s Small Satellite Technology State of the Art Report for our ongoing contributions to New Space.

We are a supplier serving new space industry, with services described below:

(1) Satellite launch services.

(2) Experiment in Space / Microgravity Research / ISAM.

(3) Dispenser / Deployer Test Fixture for Cubesats.

(4) Mass-produced Cubesat Bus.

(5) Mass-produced Cubesat Structures.

(6) Space Environment Testing Equipment: TVAC, Helmholtz Coil, Vibration Table.

(7) Space Education.

(8) Others.

Please see more details on website :

gransystems.com 

[AIAA Los Angeles Section], [contact@aiaa-lalv.org], [https://www.aiaa-lalv.org]