Today progress on the Prescott HERA dish took the form of building the dish hub and rim.  The hub is where all the dish supports (25′ pvc pipes) meet. The hub is made using concentric “sonotube” concrete forms in which are embedded 3″ plastic pipes set in a radial pattern.  Its basically a giant tinker toy hub made of cement. At the same time we also put up the rest of the rim support poles with their fixtures to receive the dish supports.

HERA Prescott Photo Album

Our work team today.

When building any kind of instrument its really important for the people looking at the data to understand all the little things that go into building it and from an experimental perspective its key to be able to experiment with the hardware.  With the primary construction going on in South Africa this is a challenge. Travel to site is key, but sometimes you can’t beat having your own copy.

With support from ASU, the Bowman lab, Embry Riddle,  in collaboration with ERAU Professor Andri Gretarsson we are building a HERA dish at the Radio Observatory on the ERAU Prescott campus.

Today the survey was completed and the three primary telephone poles were installed!

HERA-Prescott poles. Ellie Gretarsson for scale.