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4.6m Radio Telescope

School for Galactic Radio Astronomy (SGRA) program allows high school teachers to use this radio telescope remotely from the classroom.      

The PARI 4.6m "Smiley" remote access radio telescope is used by students to introduce them to Radio Astronomy.  The goal is to provide hands on data collection using remote access of the antenna for High School and College classes. It has also been a useful tool for demonstrating remote control and interface software and hardware to college students.     

Teachers come to PARI for a continuing education workshop, are trained on using radio astronomy in their lesson plans, and how to access Smiley via the Internet. Then when they get back to their classroom they have a password to schedule time on Smiley. Smiley can only have one person controlling at a time. But via the web access many students in different classes can watch the live picture as Smiley records data or is moved.

The antenna is currently configured for 21 cm (1.42 GHz) neutral hydrogen reception.


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