Jeff posted this earlier, but Dave and he were able to get the SEIPROC model running today, with some code intended to calculate common mode motion and the moved OAF suspoint code. I have thrown together a some quick MEDMs to make it easier to interact with the EQ common mode calculations and I've installed a some filters so we can start looking at signals to make sure they make sense. First attached image is the overview medm I put in, you can reach it from SEI->Eq Common Mode Overview. It's just a cartoon of the site to give an idea of where the signals originate and what we do with them, and could use some more detail. I also made four filter over view screens, 3 for seismometers for each station, one for the common mode signal, show all together in the second image. The idea is we will take the beamline and z signals from each endstation (the sum channels) average each dof (i.e EX-X/2+IY-X/2, or EX-Z/3+IY-Z/3+EY/3) then lowpass that average to estimate the common mode motion, then subtract that common motion from the sensor correction.  BrianL describes in more detail in this doc. I've also added the .3hz low pass Brian suggests, so we should now be calculating a signal we want for the subtraction. There are no receivers in any ISI or HEPI models yet to do the subtraction, so we can't test yet. But the asds of the signals seems reasonable so far, see third attached plot. The EQ_CM channels are the lowpassed averaged ground singals, below .3hz they mostly look pretty similar to the ITMY ground seismometer, which is in nm/s. 

The move of the OAF suspoint calculations blew away the the epics records that combined the different suspoint motions to calculate cavity lengths. JeffK said that he had written a script to fill them in, but I couldn't find it in the alog, so I eventually just put them in by hand. All settings have been accepted in the seiproc sdf.