School of Physics and Astronomy Wiki - groups:homestake:meetings

20131017

Anonymous (anonymous@undisclosed.example.com) — 2013-11-14T05:48:13+00:00

Homestake Telecon Minutes, 10/17/13 Attending: Vuk, Eric, Riccardo, Tanner, Pat, Jan, Nelson, Victor, Michael, Shivaraj 1) Status at Homestake (Vuk, Victor, Tanner) Vuk: visited Homestake with Victor and Tanner in mid Sep. Extracted and returned two seismometers to NIKHEF and one to Minnesota (along with some electronics). Also scouted a number of locations at 1700, 2000, 4100 and 4850 levels. Found that many of the locations would be good for seismic stations, and are currently in the proces…

20131031

Anonymous (anonymous@undisclosed.example.com) — 2013-11-14T05:48:54+00:00

Homestake Telecon Minutes, 10/31/13 Attending: Vuk, Eric, Nelson, Gary, Patrick, Tanner, Michael, Gabor S 1) Status at Homestake (Vuk, Victor, Tanner) Vuk: still waiting to hear back from Homestake about cost estimates, expect to hear very soon. Once we hear from them, and finalize the locations of underground stations, will have to interact with SURF to find appropriate locations for surface stations too.

20131114

Anonymous (anonymous@undisclosed.example.com) — 2013-11-14T17:38:03+00:00

Homestake Telecon, 11/14/2013 Attending: Eric, Riccardo, Vuk, Tanner, Gwynne, Victor, Gary 0) Homestake wiki ready to use, everyone should check that they have read/write access to it. 1) Status at Homestake (Vuk, Victor, Tanner) Discussed the possible locations, described in$80 battery could last at least 4-6 weeks. Could use several of them to last for ~6 months. Could recharge them with a diesel generator (~$

20131205

Anonymous (anonymous@undisclosed.example.com) — 2013-12-05T16:42:22+00:00

Attending: Michael, Peter B, Vuk, Riccardo, Victor, Tanner, Eric, Gabor, Gary, Pat 1) Status at Homestake (Vuk, Victor, Tanner) Vuk: Not much new, still waiting to hear back from SURF about the cost estimates at 1700 and about the battery use restrictions.

20140109

Anonymous (anonymous@undisclosed.example.com) — 2014-01-09T16:54:55+00:00

Homestake Meeting, 01/09/2014 Attending: Victor, Vuk, Gwynne, Tanner, Gary, Gabor S, Shivaraj 1) PASSCAL communications (Vuk, Gary, Tanner) Gary spoke with Tim Parker at PASSCAL. Several outcomes: a) We have all the wireless radios we want to use. They have more than the number we need for surface sites. Have anthena on Yates, and line of sight to the surface stations. We need to discuss if they could play a role in some underground sites. That is, if a door isn't it the way we c…

20140123

Anonymous (anonymous@undisclosed.example.com) — 2014-01-23T17:20:58+00:00

Meeting Minutes, 01/23/2014 Attending: Tanner, Eric, Riccardo, Gwynne, Nelson, Victor, Michael, Vuk Homestake wiki: Our agenda: 1) Homestake update Vuk: no news yet, trying to connect with Bryce. Will try to keep everyone informed via email. 2) UMN test setup

20140206

Anonymous (anonymous@undisclosed.example.com) — 2014-02-06T17:11:26+00:00

Meeting Minutes 02/06/14 Attending: Riccardo, Gwynne, Vuk, Victor, Gary, Eric, Tanner, Michael Homestake wiki: Our agenda: 1) Homestake update (Vuk) Our stations preferances: New cost estimates: Received updated cost estimates (see above) that do not incl…

20140220

Anonymous (anonymous@undisclosed.example.com) — 2014-02-20T16:42:23+00:00

Homestake Meeting Minutes, 02/20/14 Attending: Vuk, Riccardo, Gwynne, Victor, Tanner, Nelson, Eric, Shivaraj, Noah, Michael Homestake wiki: Our agenda: 1) Homestake update (Vuk): working with 3 vendors to develop the GPS transmission system. With Optical Zonu, purchased a transmitter/receiver for the raw GPS signal (1.5

20140306

Anonymous (anonymous@undisclosed.example.com) — 2014-03-06T16:50:52+00:00

Homestake meeting, 03/06/2014 Attending: Nelson, Tanner, Vuk, Noah, Eric, Victor, Gabor S Homestake wiki: Our agenda: 1) Homestake update (Vuk) Spoke with SURF representatives. Batteries are OK for them, as long as we don't have to visit them monthly. Fibers are single mode, and have them both in Ross and Yates shafts. The Ross bundle has very few fibers free, though. Since neither shaft can access all levels, we will likely have to have t…

20140403

Anonymous (anonymous@undisclosed.example.com) — 2014-04-03T16:35:49+00:00

Homestake Meeting Minutes, 04/03/14 Attending: Riccardo, Tanner, Vuk, Eric, Shivaraj, Victor, Gary, Michael Homestake wiki: Our agenda: 1) Homestake update (Vuk) Vuk: iterating with SDSTA to formulate a subaward to them, so that they could start the work on preparing the stations and installing the optical fibers. Nearing the submission of the request in fastlane, hope to have this sorted out next week.

20140417

Anonymous (anonymous@undisclosed.example.com) — 2014-04-17T16:49:30+00:00

Homestake Meeting Minutes, 04/17/2014 Attending: Eric, Gwynne, Riccardo, Vuk, Victor, Tanner, Shivaraj, Michael, Nelson Homestake wiki: Our agenda: 1) UMN test setup Tanner: Working on the GPS timing system with Liteway. Master digitizer produces digital GPS signal, converted to optical, then converted back into digital, and sent to the second digitizer in the slave mode. Everything seems to be working fine, no loss in SNR. Started running…

20140501

Anonymous (anonymous@undisclosed.example.com) — 2014-05-01T15:37:00+00:00

Homestake Meeting Minutes, 05/01/2014 Attending: Vuk, Gwynne, Tanner, Homestake wiki: Our agenda: 1) Homestake update (Vuk) Vuk: proposal for GPS distribution system, from Liteway We should be able to operate without powered equipment at most of the gates/landings, since we can use passive splitters. Trying to confirm this with the SDSTA.…

20140515

Anonymous (anonymous@undisclosed.example.com) — 2014-05-15T15:41:32+00:00

Homestake Meeting, 05/15/14 Attending: Riccardo, Gwynne, Vuk, Tanner, Victor, Gary, Shivaraj, Nelson, Michael Homestake wiki: Our agenda: 1) Homestake update Vuk: continuing interaction with SDSTA. It looks like power will be available at all of the necessary

20140612

Anonymous (anonymous@undisclosed.example.com) — 2014-06-12T17:41:40+00:00

Homestake meeting 06/12/2014 Attending: Noah, Vuk, Gwynne, Tanner, Victor Homestake wiki: Our agenda: 1) Homestake update (Vuk) Started preparatory work for some of the stations. Trip planned for the end of July to finalize location choices and GPS/network details. Gary should be at Homestake at the end of June to find surface locations and check the performance of the radio equipment from PASSCAL.

20140626

Anonymous (anonymous@undisclosed.example.com) — 2014-06-26T15:59:27+00:00

Homestake meeting minutes, 06/26/14 Attending: Tanner, Vuk, Victor, Noah, Gwynne, Shivaraj Homestake wiki: Our agenda: 1) Homestake update (Vuk) Vuk: planning a visit to Homestake on 7/28-29, along with Victor. Goal to finalize the locations, decide where the seismometers will be located, where the batteries should be placed, finalize the GPS distribution system (including fiber choice etc). Hope to make orders for fibers and GPS system so…

20140724

Anonymous (anonymous@undisclosed.example.com) — 2014-07-24T18:11:30+00:00

Homestake meeting minutes, 07/24/2014 Attending: Gary, Vuk, Gwynne, Tanner, Riccardo, Shivaraj, Eric, Nelson Homestake wiki: Our agenda: 1) Homestake update * Next visit Vuk: Victor and Vuk going to Homestake 07/28-29 to finalize locations of seismometers, digitizers and batteries at the 4850 and 1700 locations. Also will find locations for the GPS antennae near yates and ross shafts. Will discuss scheduling of the SDSTA work, and start…

20140807

Anonymous (anonymous@undisclosed.example.com) — 2014-08-07T16:36:42+00:00

Homestake Telecon Minutes, 08/07/14 Attending: Riccardo, Gwynne, Vuk, Shivaraj, Tanner, Victor, Michael, Noah. Homestake wiki: Our agenda: 1) Homestake update (Vuk, Victor): Vuk presented the status of underground locations at Homestake, the design of the GPS distribution system, and the plans for fiber layout near the shaft and at the stations. See the pdf's below

20140821

Anonymous (anonymous@undisclosed.example.com) — 2014-08-21T16:25:24+00:00

Homestake Meeting, 08/21/2014 Attending: Riccardo, Gwynne, Tanner, Vuk, Noah, Eric, Nelson Homestake wiki: Our agenda: 1) Homestake update * planning next visit: Sep 21-27 * Vuk and Tanner planning to drive on 9/21, potentially bringing some of the supplies. Victor and Daniel will fly in, and probably rent a car. Gary plans to fly in on 9/21, could then drive with either of the two cars. Potentially stop by at Lowe's in Rapid City to…

20140904

Anonymous (anonymous@undisclosed.example.com) — 2014-09-04T15:56:03+00:00

Homestake Meeting, 09/04/14 Attending: Daniel, Gary, Vuk, Noah, Tanner, Pat, Nelson Homestake wiki: Our agenda: 1) Next visit to Homestake: Sep 21-27, six people (Gary, Victor, Daniel, Tanner, Pat, Vuk). Rough plan for the first 3 days: * Tanner to work with Jamey on GPS system. Not sure if this will happen, transceivers won't reach us by then, maybe we can use the prototypes.

20140918

Anonymous (anonymous@undisclosed.example.com) — 2014-09-18T15:49:30+00:00

Homestake meeting minutes, 09/18/14 Attending: Gary, Noah, Tanner, Vuk, Victor, Pat, Riccardo, Shivaraj Homestake wiki: Our agenda: 1) Homestake visit (Vuk): Sep 21-27. Rough plan: Pat and Gary work on surface stations, Tanner works with Jamey on the GPS antenna and potentially on GPS transceivers (if they arrive on time), the rest work on the underground stations starting at 4850. May try to re-arrange the students so that everyone has a c…

20141002

Anonymous (anonymous@undisclosed.example.com) — 2014-10-02T15:16:07+00:00

Homestake meeting, 10/02/14 Attending: Daniel, Victor, Vuk, Tanner Homestake wiki: Our agenda: 1) Homestake update Vuk: had a very successful trip 9/22-26 (Daniel, Victor, Gary, Tanner, Pat, Vuk). Installed the granite tile and built the huts at 4850-2,3,4, 1700-1, and 4100-3. Also built the surface stations near Ross, Yates, Oro Hondo, Water treatment plant, Lead Highschool, and Riolite Ridge (near open cut) - includes digging a hole for …

20141016

Anonymous (anonymous@undisclosed.example.com) — 2014-10-16T16:10:49+00:00

Homestake meeting, 10/16/14 Attending: Vuk, Riccardo, Tanner, Victor, Pat, Gary, Nelson Homestake wiki: Our agenda: 1) Homestake update Vuk: Liteway expects to deliver 4 GPS transceivers next week to UMN, and the rest in 2-3 weeks to Homestake. Should know more precisely early next week. Gary and Vuk spoke with PASSCAL, they expect to be able to send us 8 full stations in 2 weeks. Add another 1-2 weeks for shipping etc, we could start inst…

20141030

Anonymous (anonymous@undisclosed.example.com) — 2014-10-30T16:03:30+00:00

Homestake call minutes, 10/30/2014 Attending: Riccardo, Tanner, Gary, Victor, Noah, Vuk, Pat, Eric, Nelson Homestake wiki: Our agenda: 1) Homestake update: aim for the week of Nov 17: * PASSCAL should be sending many boxes this week, they should make it to Homestake by Nov 10 or so. * Liteway should be sending 4 GPS units and all cables/splitters to UMN this week as well, which should give Tanner a couple of weeks to test them before the…

20141113

Anonymous (anonymous@undisclosed.example.com) — 2014-11-13T16:26:21+00:00

Homestake Meeting Minutes, 11/13/14 Attending: Daniel, Vuk, Riccardo, Tanner, Pat, Nelson Homestake wiki: Our agenda: 1) Homestake: planning the next trip Vuk: PASSCAL shipment should be there, talked with Bryce. Purchased 5 sealed batteries for the surface stations, and two 12V 1.25 Amp batteries with smart chargers for two underground stations. The third underground station should be powered with a DC power supply. Tanner and Pat will br…

20141211

Anonymous (anonymous@undisclosed.example.com) — 2014-12-11T17:32:19+00:00

Homestake Meeting, 12/11/14 Attending: Vuk, Gary, Tanner, Gwynne, Victor, Pat, Daniel, Nelson Homestake wiki: Our agenda: 1) Homestake status: Gary, Tanner, and Pat visited Homestake in Nov, installed 3 stations at 4850 (all but the 17-ledge one) and two stations on the surface (near Ross and near Yates). GPS antenna on the roof of Yates admin building, Q330 master and a GPS transceiver in IT room in the admin building, GPS receivers in all…

20150108

Anonymous (anonymous@undisclosed.example.com) — 2015-01-08T16:53:06+00:00

Homestake meeting minutes, 01/08/15 Attending: Gary, Victor, Daniel, Gwynne, Vuk, Nelson, Pat Homestake wiki: 1) Homestake status Tanner (via email): The stations seem to be receiving the GPS time consistently (the last reset was 19 days ago) but we still have the timing issues. Hopefully we will fix that on our upcoming visit. I am working to get Antelope set up here at UMN so that we can stream the data here and build a database. I don…

20150205

Anonymous (anonymous@undisclosed.example.com) — 2015-02-05T18:16:27+00:00

Homestake meeting minutes, 02/05/15 Attending: Gary, Terry, Daniel, Jan, Noah, Vuk, Tanner, Pat, Nelson Homestake wiki: Our agenda: 1) Homestake status Vuk: All instrumentation from PASSCAL has arrived, total 25 seismometers and digitizers. During the last visit we solved the problem of GPS signal transmission to the underground stations. The solution required converting between the TTL format (used by transceivers) and the RS232 format (u…

20150219

Anonymous (anonymous@undisclosed.example.com) — 2015-02-19T16:43:49+00:00

Homestake Meeting Minutes, 02/19/15 Attending: Daniel, Vuk, Tanner, Gary, Jan, Pat, Victor Homestake wiki: Our agenda: 1) Homestake status * stations duty cycle: Tanner checked occasionally the data flow, looks like all of the data is coming in except the WTP station. Last week centered all seismometers.

20150305

Anonymous (anonymous@undisclosed.example.com) — 2015-03-05T22:42:33+00:00

Homestake meeting minutes, 03/05/15 Attending: Victor, Tanner, Noah, Vuk, Daniel, Pat Homestake wiki: Our agenda: 1) Homestake status (Tanner, Gary, Daniel) * stations duty cycle: Tanner hasn't seen any interruptions in the data flow. A few weeks ago there was a strange issue: mass positions for 4100D for two days got lumped into one day file. Will have to deal with this scenario in the code that makes frames, working on implementing thi…

20150416

Anonymous (anonymous@undisclosed.example.com) — 2015-04-16T15:51:33+00:00

Homestake meeting minutes, 04/16/15 Attending: Tanner, Daniel, Vuk Homestake wiki: Our agenda: 1) Homestake status (Tanner, Gary, Daniel) * status of stations, data flow: Much progress was made during the last visit to Homestake (Tanner, Victor, Pat, Daniel, Vuk). Currently have 18 fully operational stations: 300, 800, five at 2000, three at 4100, four at 4850, and 4 surface stations. Another station is set up at 1700 level, but its netw…

20150430

Anonymous (anonymous@undisclosed.example.com) — 2015-04-30T15:59:33+00:00

Homestake Meeting Minutes, 04/30/15 Attending: Tanner, Daniel, Gary, Pat, Victor, Noah, Vuk Homestake wiki: Our agenda: * Homestake status: * 1700: missing the GPS link. Probably GPS unit in Q330 not working, try to replace it. * 2000A: missing entirely, can't talk to it. Tanner talked to Jamey, can talk to the switch at this station, so the power should be on. Have to visit it and troubleshoot.

20150514

Anonymous (anonymous@undisclosed.example.com) — 2015-05-14T15:31:43+00:00

Homestake Meeting Minutes, 05/14/2015 Attending: Gary, Vuk, Gwynne, Tanner, Pat, Michael Our agenda: * Homestake status: * troubled stations: 1700, 2000A, 2000E, Yates - same status as last week. * other: Tanner: antelope today is down at UMN. Will talk to the admins, but will have rsync. Data stream going to IRIS, but not being released yet (for 2 years). Gary: noticed Oro Hondo is getting close to recentering, may have to do it remotely.

20150528

Anonymous (anonymous@undisclosed.example.com) — 2015-05-28T16:16:00+00:00

Homestake meeting minutes, 05/28/15 Attending: Vuk, Levi, Tanner, Victor, Daniel, Gwynne, Gary, Pat Homestake wiki: Our agenda: * Homestake status (Gary, Tanner, Daniel, Pat): * Yates station: there was water in the dog house which ruined the power box. Replaced the power box, working well now. Likely that the water came in through a vent, sealed it now. Did not do the same fix on other dog houses.

20150611

Anonymous (anonymous@undisclosed.example.com) — 2015-06-11T15:58:11+00:00

Homestake meeting minutes, 06/11/15 Attending: Riccardo, Gary, Victor, Vuk, Lee, Noah, Daniel, Patrick, Shivaraj Homestake wiki: Our agenda: * Homestake array status (Gary, Tanner, Daniel, Pat) * Update from Tanner (email): Still having very frequent problems with the Antelope setup at UMN. UMN IT people don't know of any issues with the virtual machine where Antelope is running or with the disk where the data is being saved. Emailed…

20150625

Anonymous (anonymous@undisclosed.example.com) — 2015-06-25T15:56:51+00:00

Homestake Meeting Minutes, 06/25/15 Attending: Tanner, Daniel, Levi, Vuk, Victor, Riccardo, Gary Homestake wiki: Our agenda: 1) Homestake array status (Gary, Tanner, Daniel, Pat) * Daniel: two stations on 4100 are still down, there was a fiber failure yesterday. Jamey thinks timing should still be getting to them. They should still be working and data logging, but we may have to get the data from the baler eventually.

20150723

Anonymous (anonymous@undisclosed.example.com) — 2015-07-23T15:55:39+00:00

Homestake Meeting Minutes, 07/23/15 Attending: Tanner, Pat, Victor, Gary, Daniel Homestake wiki: Our agenda: 1) Homestake array status (Gary, Tanner, Daniel, Pat) * Gary: found a few timing problems on 4100/4850, talked to Jamey and he took care of it. Also found the right procedure for recentering the stations through Antelope and centered two stations. E2000 is still throwing big tilt events. WTP has lots of data gaps, probably due …

20150806

Anonymous (anonymous@undisclosed.example.com) — 2015-08-06T15:50:01+00:00

Homestake meeting minutes, 08/06/15 Attending: Vuk, Victor, Tanner, Noah, Levi, Gary, Gwynne, Pat Homestake wiki: Our agenda: 1) Homestake array status * Vuk on shift this week: timing seems fine, large 1hr long disturbance on 8/5 observed by all stations. E2000 as usual, WTP also has large variations in mass positions.

20150820

Anonymous (anonymous@undisclosed.example.com) — 2015-08-20T15:18:06+00:00

Homestake Meeting Minutes, 08/20/15 Attending: Pat, Vuk, Daniel Homestake wiki: Our agenda: 1) Homestake array status: Pat is on shift this week. Things seem fine. 2) Upcoming Homestake trip Gary reserved the lodge, should suffice for this trip. Gary working with Lee to settle on the dates, but Sep 11 should be ok to start with surface activation experiment.

20150917

Anonymous (anonymous@undisclosed.example.com) — 2015-09-17T15:22:33+00:00

Homestake Meeting Minutes, 09/17/2015 Attending: Victor, Daniel, Tanner, Gwynne, Noah, Levi, Vuk, Pat Homestake wiki: Our agenda: * Homestake array status (Tanner): still problems with E2000, WTP also has mass centering fluctuating a lot. Re-centered a few stations, but no problem. Had a couple of data dropouts due to reboots at UMN, but Tanner scp-ed the data, should be ok now. Seems not problem at Caltech. Conversion to frames going on…

20151001

Anonymous (anonymous@undisclosed.example.com) — 2015-10-01T15:26:41+00:00

Homestake Meeting Minutes, 10/02/2015 Attending: Tanner, Vuk, Levi, Victor, Pat, Gwynne, Daniel Homestake wiki: Our agenda: - Homestake array status: Pat: observed large dips in 2000E roughly about once a day, sometimes in all channels but usually in the east direction the effect is the largest. Should ask Gary for photos of the new set up. Other stations ok. Tanner: data flow ok, getting highschool data now too. Daniel will update the DQ …

20151015

Anonymous (anonymous@undisclosed.example.com) — 2015-10-15T15:43:51+00:00

Homestake Meeting Minutes, 10/15/15 Attending: Gary, Ross, Daniel, Michael, Victor, Gwynne, Levi, Vuk, Tanner, Pat Homestake wiki: Our agenda: * Homestake array status: * Tanner: computer was down for 2 weeks almost (since Sat Oct 3). Interacted with Jaret, resolved yesterday. Fixed the missing default route, currently on DHCP not fixed IP. The computer was not collecting data since it did not have the IP. Should be getting the data n…

20151203

Anonymous (anonymous@undisclosed.example.com) — 2015-12-03T17:07:19+00:00

Homestake Meeting Minutes, 12/03/15 Attending: Gary, Victor, Michael, Levi, Vuk, Daniel, Pat, Tanner, Gwynne Homestake wiki: Our agenda: 1) Homestake array status * Tanner: DQ shift this week. Still having problems with Ross, masses are misbehaving and also having data dropouts. The data is not good. Should check on the power levels at this station. Lost contact with 4850C station yesterday, down for more than 12 hours now (it is still n…

20160128

Anonymous (anonymous@undisclosed.example.com) — 2016-01-28T17:06:56+00:00

Homestake Meeting Minutes, 01/28/2016 Attending: Gary, Ross, Daniel, Levi, Vuk, Tanner, Pat, Michael Homestake wiki: Our agenda: 1) Homestake array - status of stations Gary: only one problem, the WTP, which had a power problem. Either the battery or the solar panel not getting enough exposure. Will have to address it when we go there next time.

20160225

Anonymous (anonymous@undisclosed.example.com) — 2016-02-25T17:48:13+00:00

Homestake Telecon Minutes, 02/25/16 Attending: Agenda: * Homestake array * status of stations (WTP, Yates, 800) * planning next visit: April 15-24 * No access on Apr 11 (Mon) and Apr 22 (Fri). * Replace instruments at 800 and Yates.

20160310

Anonymous (anonymous@undisclosed.example.com) — 2016-03-10T16:52:07+00:00

Homestake Meeting Minutes, 03/10/16 Attending: Tanner, Gary, Ross, Daniel, Vuk, Pat * Homestake array * status of stations (WTP, Yates, 800): * Tanner: Still problems with Yates, and one of the masses at 800 seems stuck, have to recenter it. WTP seems to be working fine, although the voltage maxes out to 12-13V, less than other stations. There were data gaps from 4850C, probably due to blasting. Probably lost power too, in two 10hr periods, so 20hrs total. Data flow going ok.

20160324

Anonymous (anonymous@undisclosed.example.com) — 2016-03-25T00:12:22+00:00

Homestake Meeting Minutes, 03/24/16 Attending: Daniel, Ross, Tanner, Gary, Gwynne, Victor, Levi, Vuk Agenda: 1) Homestake array - status of stations (WTP, Yates, 800) * Tanner: UMN antelope went down last Thursday, caught it within a week and copied the data from Homestake. Could not do this for HS, since the data is not available at Homestake. Can get it from baler eventually (one day of data). Gary has access to the HS computer, will try to copy the data directly.

20160407

Anonymous (anonymous@undisclosed.example.com) — 2016-04-07T16:03:32+00:00

Homestake Meeting Minutes, 04/07/2016 Attending: Daniel, Gary, Ross, Gwynne, Terry, Vuk, Tanner Agenda: * Homestake array * Wind damage at Yates [Yates wind damage] * Gary: add more guy wires to strengthen the solar panel pole. Should have more wires, buckles, stakes. Could try to use the same hole for the pole, but will have to decide in situ.

20160505

Anonymous (anonymous@undisclosed.example.com) — 2016-05-05T16:02:13+00:00

Homestake Meeting Minutes, 05/05/16 Attending: Daniel, Ross, Gary, Vuk, Victor, Tanner, Pat Agenda: * Homestake array * update from Pat and Terry's visit: Pat and Terry visited all stations except RR. Swapped Yates twice, there should be 24 backup directories at Indiana and Minnesota. Yates still having telemetry issues, but the baler should be working fine. At WTP the telemetry is a bit better, but the problem is not completely solved. Added some insulation (mulch bags) to some of the s…

20160602

Anonymous (anonymous@undisclosed.example.com) — 2016-06-02T16:05:22+00:00

Homestake Meeting Minutes, 06/02/16 Attending: Gary, Ross, Daniel, Victor, Levi, Vuk, Pat, Michael Agenda: 1) Homestake array status Gary: 2000D and E are off the air now, for about an hour. Contacted Jaret, he is confirmed this was a known outage. Recentered 800 and Ross. The problem with the surface stations is fixed, the IT people poked around the network connections. Not clear was wrong, it seems a loose cable somewhere in the system. We have a few months before we take it out anyway. For…

20160630

Anonymous (anonymous@undisclosed.example.com) — 2016-06-30T15:59:45+00:00

Homestake Meeting, June 30, 2016 Agenda * Status of the array * Still having trouble with RRDG station, very sporadic data. Timing has gone bad since Saturday. * Gary: sounds like rodent activity, probably chewing on cables. We could have Barrick just take a quick look and see if there is any evidence for that.

20160714

Anonymous (anonymous@undisclosed.example.com) — 2016-07-26T03:44:21+00:00

Homestake Meeting Minutes, 07/14/16 Attending: Gary, Ross, Levi, Vuk, Daniel, Pat, Tanner Agenda: * Homestake array status * RR cabling issue: probably rodent activity. Fix would most likely require replacing cables. * WTP mass rail issue. $20 per station per day, so next 50 days would cost us $

20160728

Anonymous (anonymous@undisclosed.example.com) — 2016-07-28T15:50:31+00:00

Homestake Meeting Minutes, 07/28/16 Attending: Victor, Vuk, Daniel, Tanner Agenda: * Planning the next visit: * Constraints from Jaret: * Maintenance days: Sep 23,26 and Oct 7,10. The Lab also observes the Native American Day holiday on Oct 10.

20160811

Anonymous (anonymous@undisclosed.example.com) — 2016-08-11T16:16:21+00:00

Homestake Meeting Minutes, 08/11/16 Attending: Agenda: Andrew, Gary, Jan, Michael, Victor, Voon, Zhi, Vuk, Pat * Tanner graduated - Congratulations!!! * Gary/Vuk: post his disertation on the wiki. * Homestake Status * Daniel (email): I am on DQ shift this week, and while the data seems to be OK (with the known exceptions, RRDG, etc), it seems Tanner's DQ page is missing most of the links. Maybe a directory was moved around or permissions changed? In any case, the Caltech DQ page i…

20160825

Anonymous (anonymous@undisclosed.example.com) — 2016-08-25T15:22:04+00:00

Homestake Meeting Minutes, 08/25/16 Attending: Daniel, Gary, Levi, Vuk, Victor, Pat Agenda: * Homestake status * Array seems to be healthy, still have RR and WTP * Gary: LHS seems to be off, we may have lost the connection. Gary will check with the network person at the highschool.

20160907

Anonymous (anonymous@undisclosed.example.com) — 2016-09-08T15:48:26+00:00

Homestake Meeting Minutes, 09/08/16 Attending: Gary, Levi, Zhi, Vuk, Ross, Andrew, Surendra, Victor, Pat Agenda: * Status of the Homestake array * Ross: all looks good, other than the known problems at RR and WTP stations. * LHS: no news, Gary did not hear back from them. May give up on this now, we will visit soon anyway.

20160922

Anonymous (anonymous@undisclosed.example.com) — 2016-09-22T15:19:39+00:00

Homestake Meeting Minutes, 09/22/16 Attending: Andrew, Daniel, Victor, Voon, Zhi, Levi, Vuk Agenda: * Homestake visit * Meet with Tom on Saturday morning, to pick up the tools. Daniel: Would be good to have Tom's phone number. * Monday: RR station in the morning, hopefully Jamey can help us on Monday or Tuesday with the radio antenna.

20161006

Anonymous (anonymous@undisclosed.example.com) — 2016-10-06T15:38:58+00:00

Homestake Meeting Minutes, 10/06/2016 Attending: Levi, Vuk, Gary, Daniel, Victor, Pat, Terry Agenda: * Homestake array update * Daniel: removed all surface stations, everything in boxes in cold storage. Tried to pack everything so that in December the boxes can be simply added. Has inventory sheet, will add it to the wiki. Pallets are there (4 of them) in cold storage, two of them already used for surface stations (but can probably add to them). Pick them up with a forklift. Hope to brin…

20161020

Anonymous (anonymous@undisclosed.example.com) — 2016-10-20T15:31:56+00:00

Homestake Meeting Minutes, 10/20/16 Attending: Terry, Vuk, Gary, Andrew, Levi, Ross, Victor, Daniel, Pat Agenda: * Homestake array status * Power cycle at the admin building brought down the master node of the GPS distribution system. Jaret repowered it, it is operating again. The system was down for 4-5 days, but the timing shifted by ~3ms, not really an issue for our analyses.

20161103

Anonymous (anonymous@undisclosed.example.com) — 2016-11-03T15:55:35+00:00

Homestake Meeting Minutes, 11/03/16 Attending: Daniel, Gary, Ross, Pat, Victor, Voon, Vuk, Terry Agenda: * Status of the seismic array: * No issues to report. * Planning next Homestake visit, Nov 27 - Dec 5 * Vuk: Workplan and decommissioning document sent to Jaret, waiting to hear back. Also communicated with PASSCAL about the shipment, forwarded some of the questions to Jaret.

20161117

Anonymous (anonymous@undisclosed.example.com) — 2016-11-17T16:15:30+00:00

Homestake Meeting Minutes, 11/17/16 Attending: Vuk, Pat, Ross, Voon, Daniel, Victor Agenda: * Status of the Homestake Array: No news. * Planning next visit, 11/27 - 12/05 * Vuk: Tom is available on Sunday afternoon, should meet with Pat, Daniel, and Terry to collect crates to be delivered underground on Sunday evening to 4100. After that, the team will have to prepare the crates each afternoon for the following day. Preparing information for the shipment to PASSCAL, but also to Minn…

20170126

Anonymous (anonymous@undisclosed.example.com) — 2017-01-26T23:13:10+00:00

Homestake Meeting Minutes, 01/26/17 Attending: Daniel, Gary, Levi, Vuk, Ross, Victor, Pat Agenda: - Paper plans * Possible papers discussed in past meetings: * Data report paper (everyone) * practical issues uncovered in the active source experiments.

20170223

Anonymous (anonymous@undisclosed.example.com) — 2017-02-23T17:45:25+00:00

Homestake Meeting Minutes, 02/23/17 Attending: Vuk, Daniel, Gary, Levi, Pat, Victor, Andrew, Ross Agenda: * Data analysis topics * Gary: working with Ross on the catalog, processed 500 events, trying to fit the events in some plane-wave stacking techniques. Breaking the data between surface, mid, and deep stations. Trying different groupings, not ready to show results yet. May yield a figure or two about how events look like for the overview paper.

20170323

Anonymous (anonymous@undisclosed.example.com) — 2017-03-23T17:18:59+00:00

Homestake Meeting Minutes, 03/23/17 Attending: Andrew, Daniel, Pat, Ross, Levi, Vuk, Victor, Voon, Gary Agenda: * Next Meeting: Apr 13 * Data analysis topics * Data corrections, frame production (Gary/Daniel/Pat) * Pat observed that some of the channels were swapped (E and N) on some of the stations and not on others.

20170413

Anonymous (anonymous@undisclosed.example.com) — 2017-04-13T17:20:01+00:00

Homestake Meeting Minutes, 04/13/17 Attending: Daniel, Gary, Pat, Ross, Victor, Vuk, Andrew, Levi, Michael Agenda: * Next Meeting: May 4 * Data analysis topics * Data corrections, frame production (Gary/Daniel/Pat) * Daniel got data from Gary, now Pat is copying the data at UMN. Pat plans to start making frames in the coming week. Daniel has the complete dataset, checked a few teleseisms and the data look correct.

20170504

Anonymous (anonymous@undisclosed.example.com) — 2017-05-04T17:00:54+00:00

Homestake Meeting Minutes, 05/04/17 Attending: Daniel, Gary, Levi, Ross, Vuk, Andrew, Pat, Victor Agenda: * Next Meeting: June 1 * Data analysis topics * Data corrections, frame production (Gary/Daniel/Pat) * Pat: going through the final checks and found that some of the miniSEED files have overlapping times but different data. Not sure what to do, which data to use

20170601

Anonymous (anonymous@undisclosed.example.com) — 2017-06-01T16:51:27+00:00

Homestake Meeting Minutes, 06/01/17 Attending: Andrew, Gary, Levi, Pat, Ross, Victor, Vuk, Daniel, Michael Agenda: * Next Meeting: June 29 * Data analysis topics * Data corrections, frame production (Gary/Daniel/Pat) * final checks (Pat/Gary/Daniel)$700 flat for first 6 pages, $

20170629

Anonymous (anonymous@undisclosed.example.com) — 2017-06-29T16:36:59+00:00

Homestake Meeting Minutes, 06/29/17 Attending: Gary, Andrew, Victor, Pat, Vuk Agenda: * Next Meeting: July 27 * Data analysis topics * Data corrections, frame production (Gary/Daniel/Pat) * Pat: Frames at Caltech now. Michael knows about it, working on the Wiener filter paper.

20170727

Anonymous (anonymous@undisclosed.example.com) — 2017-07-27T17:30:49+00:00

Homestake Meeting Minutes, 07/27/17 Attending: Pat, Andrew, Daniel, Ross, Victor, Vuk Agenda: * Next Meeting: Aug 24. * Data analysis topics * Data corrections, frame production (Gary/Daniel/Pat) * Pat: Frames ready at Caltech. * Daniel: Some timing hiccups, especially when a station is reset, timing off by 1/4 of a second. Have to chase it further, may be ignorable. Doesn't happen often. We could flag the times/stations when this happens. (See also below)

20170824

Anonymous (anonymous@undisclosed.example.com) — 2017-08-24T16:52:50+00:00

Homestake Meeting Minutes, 08/24/17 Attending: Vuk, Andrew, Daniel, Ross, Victor Agenda: * Next Meeting: Vuk will do a doodle poll, but Wed 11am central seems good. * Data analysis topics * Data corrections, frame production (Gary/Daniel/Pat)

20171018

Anonymous (anonymous@undisclosed.example.com) — 2017-10-18T16:34:08+00:00

Homestake Meeting Minutes, 10/18/17 Attending: Daniel, Ross, Pat, Andrew, Vuk, Michael Agenda: * Next Meeting: Vuk will circulate doodle poll, it seems there are conflicts with current time. * Data analysis topics * Data corrections, frame production (Gary/Daniel/Pat)

20171117

Anonymous (anonymous@undisclosed.example.com) — 2017-11-17T19:17:38+00:00

Homestake Meeting Minutes, 11/17/17 Attending: Pat, Victor, Daniel, Andrew, Vuk, Ross Agenda: * Next Meeting: potentially Dec 8, Vuk will check with Gary. * Data analysis topics * Data corrections, frame production (Gary/Daniel/Pat) * Event catalog (Gary/Ross)

20171208

Anonymous (anonymous@undisclosed.example.com) — 2017-12-08T19:19:34+00:00

Homestake Meeting Minutes, 12/08/17 Attending: Andrew, Jan, Pat, Ross, Vuk, Daniel, Michael, Gary Agenda: * Next Meeting: Jan 12? * Data analysis topics * Data corrections, frame production (Gary/Daniel/Pat) * Event catalog (Gary/Ross) *

20180118

Anonymous (anonymous@undisclosed.example.com) — 2018-01-19T19:43:11+00:00

Homestake Meeting Minutes, 01/18/18 Attending: Ross, Gary, Vuk, Daniel, Andrew, Pat, Michael Agenda: * Next Meeting: Feb 16? * Data analysis topics * Data corrections, frame production (Gary/Daniel/Pat) * Event catalog (Gary/Ross) * Radiometer updates (Pat, Andrew)

20180216

Anonymous (anonymous@undisclosed.example.com) — 2018-02-16T18:01:54+00:00

Homestake Meeting Minutes, 02/16/18 Attending: Daniel, Gary, Victor, Ross, Pat, Vuk Agenda: * Next Meeting: * Data analysis topics * Data corrections, frame production (Gary/Daniel/Pat) * Event catalog (Gary/Ross) * Radiometer updates (Pat, Andrew)

20180413

Anonymous (anonymous@undisclosed.example.com) — 2018-04-13T18:06:38+00:00

Homestake Meeting Minutes, 04/13/18 Attending: Gary, Pat, Victor, Vuk, Daniel Agenda: * Next Meeting: May 11 * Data analysis topics * Data corrections, frame production (Gary/Daniel/Pat) * Event catalog (Gary/Ross) * Radiometer updates (Pat, Andrew)

20180511

Anonymous (anonymous@undisclosed.example.com) — 2018-05-11T17:45:30+00:00

Homestake Meeting Minutes, 05/11/18 Attending: Andrew, Daniel, Gary, Victor, Vuk, Pat Agenda: * Next Meeting: June 1? * Data analysis topics * Data corrections, frame production (Gary/Daniel/Pat) * Event catalog (Gary/Ross) * Radiometer updates (Pat, Andrew)

20180601

Anonymous (anonymous@undisclosed.example.com) — 2018-06-01T17:50:02+00:00

Homestake Meeting Minutes, 06/01/18 Attending: Agenda: * Next Meeting: in 2 months or so. If need arises, will organize an ad-hoc meeting on a Friday. * Data analysis topics * Data corrections, frame production (Gary/Daniel/Pat) * Daniel: should check that IRIS data is correct (swapping north and east channels). Will contact Gary and look at the data.

home

Anonymous (anonymous@undisclosed.example.com) — 2018-05-31T22:09:16+00:00

GGN Telecons June 1, 2018 May 11, 2018 April 13, 2018 February 16, 2018 January 18, 2018 December 8, 2017 November 17, 2017 October 18, 2017 August 24, 2017 July 27, 2017 June 29, 2017 June 1, 2017 May 4, 2017 April 13, 2017 March 23, 2017 February 23, 2017 January 26, 2017 November 17, 2016 November 3, 2016 October 20, 2016 October 6, 2016 September 22, 2016 September 8, 2016 August 25, 2016 August 11, 2016 July 28, 2016 July 14, 2016 June 30, 2016 June 2, 2016 May…