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Research
Welcome to Hat Creek Radio Observatory
We are home to the Allen Telescope Array, the only instrument designed specifically for the purpose of conducting SETI research.
If you are interested in visiting HCRO, we are located approximately 300 miles NE of San Francisco, in Shasta County, California. A self-guided tour is available during opening hours.
Our visitor hours are:
| Thursday-Friday | 9:00 AM - 3:00 PM |
| Saturday-Wednesday | Closed |
Address:
42231 Bidwell Rd
Hat Creek, CA 96040
| WARNING: HCRO is an active research site. Cell phone signals can interfere with ongoing operations. When you visit, cell phones and other GPS equipment must be turned off. |
HCRO Staff
Astronomy
Vishal Gajjar
Information Technology
Sean Meyers
SETI, Radio Astronomy Instrumentation
Alexander Pollak
SETI
Andrew Siemion
Astronomy
Information Technology
Sean Meyers
SETI, Radio Astronomy Instrumentation
Alexander Pollak
SETI
Andrew Siemion
Carol Shumaker,
Site Maintenance Technician
Mark Masters,
Technician
Collaborators and Consultants
Dr. David DeBoer,
Management and Operations
Dr. Wael Farah,
Project Scientist, ATA
Dr. Jack Hickish,
Digital Signal Processing ATA
Derek Kozel,
GNU Radio, ATA
Todd Koumrian,
Software and Control, ATA
Dr. Cherry Ng,
Project Scientist,
COSMIC/Meerkat
Dr. Sofia Sheikh,
Technosignature Research Scientist
Video
How SETI Designed A Telescope To Look For Extraterrestrial Civilizations
In 2025, we invited Scott Manley for a tour of the Allen Telescope Array in Hat Creek, CA. Take an in-depth look of the facilities and research happening at the Hat Creek Radio Observatory!