Inspected the 85-3 in Green Bank
Telescope technicians ride the lift up to the prime focus of the 85-3, an 85-foot radio telescope in Green Bank. At the prime focus is a receiver that needs changing out. From 1989 until 2011, the 85-3 was used for monitoring of pulsar timing and brightness for scientists at Princeton, Berkeley, and Oberlin College. About 35 pulsars were observed every day, at frequencies of 610 and 327 MHz.
Credit: NRAO/AUI/NSF
