Subject: Re: HIGH CADENCE IMAGING CAMPAIGN: suggested dates Date: Sat, 27 Apr 2002 18:56:58 -0700 From: Karel Schrijver Organization: Lockheed-Martin Palo Alto Advanced Technology Center To: Richard Canfield CC: TRACE planner Dear Dick, You did not list TRACE on the list of observatories interested in high-cadence campaigns with RHESSI. But as you know, we have been observing RHESSI targets for about half of our time since RHESSI became operational, and we plan to continue that. And we are also in a kind of ``standby mode'' ready to drop what we're doing to go the the RHESSI target whenever there is a call from their team warning of an imminent large flare. All that was discussed with RHESSI team members, and it surprises me that you seem to be unaware of this. We intend to continue to support RHESSI observations, and anticipate close collaboration with a number of the instruments and observatories that you list. So through email and the SOHO/TRACE planning cycles we're likely to be on line for RHESSI during both the upcoming MEDOC and the August period that you indicated. Kind regards, Karel Subject: Re: HIGH CADENCE IMAGING CAMPAIGN: MEDOC period chosen Date: Wed, 08 May 2002 10:47:47 -0700 From: wolfson To: Richard Canfield , karel Dick, You might want to start listing TRACE with two different conditions in that for UV and White Light programs we do operated in the 2-4 second domain, while in the EUV it is more like 10 seconds. The UV program was especially constructed for high cadence RHESSI support although it now seems that the RHESSI folks prefer the EUV/195A program even though the cadence is slower. If a real/ special high cadence campaign comes into being, they should probably reconsider the preferred TRACE mode(s). -- C. Jacob (Jake) Wolfson | (650) 424-4032 Room 251 Org L9-41; Bld 252 | (650) 424-3994 Fax Lockheed Martin ATC | (408) 253-0238 Home 3251 Hanover St., Palo Alto, CA 94304 | wolfson@lmsal.com Subject: Re: HIGH CADENCE IMAGING CAMPAIGN: MEDOC period chosen Date: Wed, 08 May 2002 15:25:34 -0400 From: Harry Warren Organization: Smithsonian Astrophysical Observatory To: Richard Canfield Dick, TRACE can actually achieve cadences of about 2s in the UV. Is this what you are interested in from TRACE instead of 195? Harry Richard Canfield wrote: > > TRACE (EUV imaging) > + Udaipur Solar Observatory (H-alpha imaging) > UVCS/SOHO (UV spectroscopy) > Those observatories marked with * observe whenever possible at the > present time, so they need no special campaign dates. The observatories > marked with + are those with which can make image or flux sequences with > cadences comparable to or better than HESSI's 2-4 second cadence for > complete image synthesis. -- // ---------------------------------------------------------------------------- // Harry P. Warren email : hwarren@cfa.harvard.edu // Harvard-Smithsonian Center for Astrophysics voice : 617-495-7139 // 60 Garden Street MS 58 fax : 617-496-7577 // Cambridge, MA 02138 // ----------------------------------------------------------------------------