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Meeting Minutes, 01/23/2014

Attending: Tanner, Eric, Riccardo, Gwynne, Nelson, Victor, Michael, Vuk

Homestake wiki: https://zzz.physics.umn.edu/groups/homestake/home

Our agenda:

1) Homestake update Vuk:

2) UMN test setup (Tanner) Tanner: continuing to set up the prototype at UMN, connected the digitizer, the bailer, and a computer to a local network switch. Can control them, see the data from the seismometer etc. At the moment don't have the GPS hooked up, since the lab is in the basement. Will move to a different lab with a window, with the hope that we can get the GPS signal and get the whole system to work.

3) Analysis of existing data

  a) Frames/miniSEED files (Shivaraj, Tanner, Michael)
  b) Wiener filtering (Michael, Jan)
  Michael: no news.
  
  c) Estimation algorithms (Shivaraj, Eric) 
  Eric: posted slides: 
  https://zzz.physics.umn.edu/_media/groups/homestake/meetings/homestake_orfs_eric20140123.pdf
  
  Going back to the beginning and trying to rebuild the radiometer algorithm to understand it better now, and to make things easier in the future. Studying the overlap reduction between seismometers, following the formalism from the gravitational-wave field.
  Victor: similar studies have been done in the past, showing that lower frequencies are correlated over longer distances. There is also a difference between surface and body waves.