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7 MARCH 2018 Progress continues on the NASA SGP McDonald VGOS antenna's signal chain; here, the positioner alignment and assembly is nearing completion at the Westford build site. [Photo credit: Michael Poirier] MGO positioner assembly, #1  

MGO positioner assembly, #1

1 MARCH 2018 The signal chain build for the new VGOS antenna at McDonald Observatory in Texas is well underway! The front-end positioner — which houses mechanical and electrical elements such as the antenna feed, receiver payload, receiver cryogenics and vacuum, and calibration and monitoring systems — is nearing completion at the Westford instrumentation facility. [Photo credit: Michael Poirier]


MGO positioner build MGO positioner build

MGO positioner build


MGO positioner build

27 FEBRUARY 2018 Earlier this month, our VLBI/VGOS science and engineering team met with colleagues from NVI and NASA’s Space Geodesy Project (SGP). Haystack and NVI have a long history of successful collaboration on VLBI data and science! Together, we reviewed the VGOS progress over the last few years, and produced a tentative plan for the rollout of the VGOS network that will cover the period between 2018-2020. [In photo: Pedro Elosegui (Haystack), Chester Ruszczyk (Haystack), Dirk Behrend (NVI), Ganesh Rajagopalan (Haystack), Frank Lemoine (NASA/SGP Project Scientist), Ed Himwich (NVI), John Barrett (Haystack), and John Gipson (NVI), at MIT Haystack Observatory] testing system temperature
23 FEBRUARY 2018 Recently, a team from Haystack tested the system temperature of the broadband receiver of the VLBI antenna at Goddard Geophysical and Astronomical Observatory (GGAO), after servicing it and before transporting it back from Westford, Massachusetts, to GGAO, Maryland. This engineer looks cold, but he’s more interested in how the New England weather affected the receiver’s performance (only a few dBs above the noise floor of the spectrum analyzer) than keeping himself warm. The radome in the background houses the Haystack 37-m radio telescope. [Photo credit: Ganesh Rajagopalan]

testing system temperature
21 FEBRUARY 2018 Welcome to the VLBI weblog at MIT Haystack Observatory, where we’ll cover highlights of our latest work in regard to very long baseline interferometry (VLBI), which we use for geodesy and astronomy. We’ll share updates from our Westford radio telescope and some of our collaborations with other VLBI institutions and stations around the world, as well as progress on the signal chain for NASA’s next cutting-edge VGOS station, at McDonald Observatory, Texas—following in the footsteps of the Space Geodesy Project’s popular Koke'e Park Geophysical Observatory (KPGO) Blog.


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