To: Young, PR (Peter) Cc: Fludra, A (Andrzej); choc@astro.sk; gomory@astro.sk Subject: request for CDS support Dear Dr. Young, after very successful coordinated campaign between DOT (LaPalma) telescope and SOHO/CDS spectrometer performed in July 2006 (http://www.astro.sk/~choc/open/06_dot/06_dot.html) we would like to repeat this coordinated campaign also in 2007. Fortunately we were able to manage to get the DOT support for 28 days (3-31/8/2007) this year! Now we work on other supporting instruments among which the CDS involvement is crucial (see proposal at http://www.astro.sk/~choc/open/07_dot/rybak_dot_proposal_2007.pdf). Based on experience we have gained last year we would prefer the CDS to run for us the VARDYN_C/v1 (06:40-13:30 UT) targeted at an active region or alternatively VARDYN_A/v1 focused on the quiet Sun (06:40-13:30 UT). Both runs were already used several times. Targets will be selected on a daily basis according to the actual activity on the solar disk in advance. We have recognized that there are at the moment two limiting factors which could affect our campaign: 1/ Aug 12-Sep 09 26m Keyhole (Aug 18-Sep 03 34m Keyhole): - higher change of data loss - possibly no MDI HR/FD data after Aug 12/17 2/ Aug 5-18 campaign: Filament/Cavity-CME-ICME IHY-CIP campaign, CDS/UVCS/TRACE/Hinode-EIS/Hinode-XRT/Hinode-SOT/ COMP/SOLARC/ ProMag/MWA/RHESSI, POC: Terry Kucera We send you our request in advance before contacting the SOHO SOC as we understand that there is almost no chance to get the CDS support for 28 days in one run... Therefore we would like to ask you what is a acceptable number of days for one (our) campaign and how we can schedule these days in August 2007 having the SOHO keyhole in mind (is it possible to get some CDS data also during the SOHO keyhole?). Due to MDI possibility to provide HR/FD data only before Aug 12/17 we would highly welcome a continuous CDS support for our campaign at least for Aug 3-11 or, if possible, for Aug 3-17. As support of the European ground based telescopes is guaranteed we are interested only in the morning hours (~06:30-13:30) leaving rest of time for other possible studies (e.g. Filament/Cavity-CME-ICME IHY-CIP campaign by Terry Kucera). Of course, we understand more other reasons could appear in the meantime. Nevertheless we would be obliged to get your reply and answer. Based on it we will continue to discuss our campaign with the MDI, TRACE, and SOHO planners (the observing details of all participating instruments are listed below). With many thanks beforehand Peter Gomory and Jan Rybak, coordinators of the SOHO/DOT/TRACE observing campaign Observatorio del Roque de los Muchachos, 02/05/2007 ************************************************************************** * Peter Gomory tel. : ++421 52 7879 166 (111 secretary) * Astronomical Institute fax : ++421 52 4467 656 * Slovak Academy of Sciences email : gomory@astro.sk * 05960 Tatranska Lomnica WWW : http://www.astro.sk/~gomory * Slovak Republic ************************************************************************** -------------------------------------------------------------------------- CAMPAIGN : Title: Physical mechanisms driving solar microflares and supergranular network dynamics - relevance for coronal heating and mass supply Principal Investigator: Jan Rybak (choc@astro.sk) Web page: http://www.astro.sk/~choc/open/07_dot/07_dot.html Instruments/telescopes: DOT, Kanzelhoehe, Hvar CDS/SOHO, MDI/SOHO, EIT/SOHO, TRACE, RHESSI Targets: 0/ default target: exact disk center 1/ microflares in active regions 2/ supergranular network all near disk center (inside MDI HR FOV roughly: E250"-W250",N150"-S400") Scheduled period: 03-31/08/2007 06:30-13:30 UT for space-born instruments - CDS : 1D slit mode: fixed in the particular X,Y coordinates slit width=2", slit length=142" 2D raster mode: +-10 slit positions around the 1D mode slit position (in X-axis) raster area: 42"x142" slit NS oriented schedule: 2D rasters : 07:00-07:30, 13:00-13:30 1D slit : 07:30-13:00 spectral lines: He I 584 (2x10^4K), O III 599 (8x10^4K), O V 629 (2.5x10^5K), Ne VI 562 (8x10^5K), Mg IX 386 (1x10^6K), Si XII 520 (2x10^6K) - TRACE : requested time : 06:30-14:00 UT main channel 171A, ~40s cadence; 1216, 1550, 1600, WL every 15 cycles (10min) FOV - minimum 340"x340" no rotation compensation - MDI : HR mode if possible, 1 magnetogram each minute, 1 intensitygram at least each 96min FD mode after Aug 18 - EIT : summary images at 07:00-07:30, 13:00-13:30 rest of the time 195 A (CME watch) each ~12 minutes - DOT : H alpha scans: 0.0,+/-0.35 A cadence at least 20s (if possible) Ca II H: line center Blue and red continuum, G-band