Campuses:
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| groups:homestake:meetings:20150625 [2015/06/25 10:27] – mandic | groups:homestake:meetings:20150625 [2015/06/25 10:56] (current) – mandic | ||
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| 2) Next Homestake trip | 2) Next Homestake trip | ||
| * Gary: talked to PASSCAL that affects the schedule - they can get the equipment to Homestake by Sep 15. So the underground excitations will have to take place after the surface. Can do surface Sep 11-14. PASSCAL has a device that plugs into the data logger computer that Lee is bringing, which syncs the computer time to UTC, so that the data tagged on each shot (weight drop) is accurate to better than ms. The weight flips a switch when it hits the ground, and this gives the time of the drop/ | * Gary: talked to PASSCAL that affects the schedule - they can get the equipment to Homestake by Sep 15. So the underground excitations will have to take place after the surface. Can do surface Sep 11-14. PASSCAL has a device that plugs into the data logger computer that Lee is bringing, which syncs the computer time to UTC, so that the data tagged on each shot (weight drop) is accurate to better than ms. The weight flips a switch when it hits the ground, and this gives the time of the drop/ | ||
| - | * mid September date (No access on Aug 31, Sep 7, Sep 11-14, Sep 25-28) | + | * Riccardo/ |
| + | * For the underground work, will need 2 weeks of underground access. | ||
| + | * Homestake no access on Aug 31, Sep 7, Sep 11-14, Sep 25-28) | ||
| + | * would be good for another person (Pat or Daniel) to go to Homestake on 9/8 and use the two underground days before Sep 11 to fix 2000E and harvest the data from Balers. | ||
| + | * Both Victor and Daniel might be going to a workshop on Sep 13-16. | ||
| * Tasks: | * Tasks: | ||
| * weight drop experiments on the surface | * weight drop experiments on the surface | ||
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| 3) data analysis | 3) data analysis | ||
| - | * calibration | + | * calibration: Gary knows how to do it, has to find time to run it and watch it. Takes about 3 hours per station. Can automate the process, so the whole array will take about 2-3 days. |
| - | * radiometer method | + | * Daniel: deep earthquake in Japan, trying to look at the free surface reflection. Trying to model the waveform, work in progress. |
| - | * other analysis | + | * radiometer method: Tanner rewriting some of the code to streamline it and make it more coherent. Doing comparisons recently between the new and the old codes and the new code is still having problems with the S-wave. ALso trying to add capability to look at the real data from Homestake. Also need information about how to apply calibration - to start with, a multiplicative factor in time-domain would do. |
| + | * Levi: looking at the power in the recovered maps, now have code ready to make histograms and study dependence in the detector configurations. | ||
| + | * Gary: nominal calibration constants are in the stage table in db.master. Conversion from counts to nm/s. | ||
| + | * analysis | ||
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| + | Next call July 23. | ||