Dish of the 85-3
85-3 was the third 85-foot telescope kit purchased from the Blaw-Knox Corporation. In 1967, it joined the 85-2 and 85-1, also known as the Howard E. Tatel 85-foot telescope, to expand the NRAO’s first array, the Green Bank Interferometer.
When the GBI was not in use, the 85-3 was used on its own as a pulsar observing tool. From 1989 until 2010, it monitored 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
