Subject: Re: [sot_co:00366] Details about program 25 for the SOHO+HINODE April 2007 campaign (sot_co:) (fwd)

From: Peter Gomory <[email-masked]>
Date: Wed, 28 Mar 2007 06:47:53 +0000 (UTC)

>From [email-masked]  Wed Mar 28 02:30:36 2007
Cc: [email-masked]
From: Thomas Berger <[email-masked]>
Subject: Re: [sot_co:00366] Details about program 25 for the SOHO+HINODE April 2007 campaign (sot_co:)
Date: Tue, 27 Mar 2007 19:28:18 -0700
To: [email-masked]

Peter,

SOT is planning on supporting all of the SOHO/SUMER campaigns during  
April so consider your program scheduled in week 15. The exact times  
of observation will presumably be relayed sometime closer to week 15.

Regarding your request for SOT observations, please note that the  
high cadence and FOV that you request can only be sustained for  
about  an hour due to on-board memory and telemetry restrictions. So  
in an optimal 7 hour period we may be able to run two high-cadence  
programs of about 1 hour duration each but no more than that. The FOV  
you request will be a 1kx2k pixel readout resulting in an exact FOV  
of 54" x 109" - I trust you won't miss those extra 6 arcseconds. If  
you have any other requests for coordination with SOT please email  
either myself or Takashi Sekii, the SOT science scheduling coordinators.

Cheers,
Tom Berger
[email-masked]

Takashi Sekii
[email-masked]

On Mar 27, 2007, at 6:34 PM, Jan Jurcak wrote:

> Hello,
>
> I am just forwarding the e-mail from Peter Gomory who had problems  
> with sending it directly to the sot_co.
>
> Regards, Jan
>
> ********************************************************************** 
> *********
>
> Dear SOT planners,
>
> we have already applied for the observing time in a frame of the  
> joint observing campaign of the SOHO/SUMER and HINODE/EIS  
> spectrometers
> following suggestion of the SUMER PI Werner Curdt. This program was  
> included to the SOHO+HINODE April 2007 campaign (program 25)  
> scheduled for week 15.
> For our scientific goals it would be great if we can get also  
> support of the SOT instrument.
>
> Our main aim is to study upper parts of the solar atmosphere (i.e.  
> chromosphere, transition region and corona) in order to identify  
> the most probable physical mechanism responsible for the heating of  
> the solar corona localized particularly in/above chromospheric  
> network. The detailed scientific justification of our observing  
> program and the description of the SUMER and EIS observing details  
> can be found at http://www.mps.mpg.de/homes/curdt/hinode/ 
> HINODE_cases.html
> (observing program nr. 25).
> The main argument to try to acquire also SOT data for this program
> is that the filtergrams taken in G-band and blue continuum should  
> enable us to analyze footpoints of the magnetic field  
> concentrations. These magnetic elements, visible as the  
> photospheric bright points concentrated in the network, are  
> considered to be the prime candidate for drivers of the coronal  
> heating mechanisms (Muller at al., A&A 283, 232).
> Moreover, time series of the SOT filtergrams taken in the Ca II H  
> spectral line will provide additional information about behaviour  
> of waves in the chromosphere and they will allow better  
> identification of the coronal heating mechanism.
>
> Therefore, SOT measurements will definitely improve the quality and  
> complexity of our observing campaign. We add here technical details  
> for
> possible SOT support of our program.
> SOT observing details (Broad Filter Imager):
> --------------------------------------------
> - FOV: 60" x 109"
> - spectral channels: G-band, Ca II H, blue continuum
>                     (sequentially in time if  
> possible,                      if only one channel could be  
> selected                      then G-band channel is preferred)
> - cadence of a set of these 3 channels: 10-15 sec
> - total run duration: minimum: ~3.5 hours
>                      optimum: ~7.0 hours
> - no compensation of the solar rotation
> - target: quiet Sun near disk center with the SUMER 1D slit in the  
> center
>  of the SOT FOV
> - pointing: specified via e-mail a day in advance
>
> We would be very obliged if the SOT will be able to support
> our program with this type of observations. Therefore we
> would be obliged to hear from you whether this is realistic
> in frame of the SOHO+HINODE campaign scheduled for April
> 2007 (week 15 in our case).
>
> With best wishes and many thanks beforehand
>
> Peter Gomory, coordinator of the SOHO/HINODE April 2007 program 25
>
> Tatranska Lomnica, 26/03/2007
>
> ********************************************************************** 
> ****
> * Peter Gomory                tel.  : ++421 52 7879 166 (111  
> secretary)  *
> * Astronomical Institute      fax   : ++421 52 4467  
> 656                  *
> * Slovak Academy of Sciences  email :  
> [email-masked]                    *
> * 05960 Tatranska Lomnica     WWW   : http://www.astro.sk/ 
> ~gomory        *
> * Slovak  
> Republic                                                        *
> ********************************************************************** 
> ****
>
>