[Fwd: Re: Large programs: SAC recommendation May 07]

Here is the CFHT SAC large program recommendation, with a caution. It is
a fairly sensible process so we should give it a try I think.

attached mail follows:

Hi!

Be careful though that those are SAC recommendations... and the Board could have
some changes in mind ;)

By the way, the call for proposals is being prepared. More on thislater in the
month.

Aloha,
Christian

Jean-Charles Cuillandre wrote:
> Hi,
>
> And looking in the near future, there is the recommendation for the
> large programs. Note the 40% over the three instruments, whereas
> right now the LS by itself is nearly 30% (of all CFHT time) simply
> on MegaPrime.
>
> Maybe they'll reconsider if the demand for large programs is great?!
>
> http://www.cfht.hawaii.edu/Science/SAC/SAC_website/SAC_Repts_&_News/May_2007/SAC07.html#Large_Programs
>
> Jean-Charles.
>> Hi,
>>
>> The recommendations were recently made public:
>>
>> http://www.cfht.hawaii.edu/Science/SAC/SAC_website/SAC_Repts_&_News/May_2007/SAC07.html
>>
>> Of relevance to the CFHTLS:
>>
>> SAC Recommendation #7 -- CFHTLS Re-observations of fields
>> SAC is surprised that some LS images have been rejected by Terapix after being validated by CFHT without any feedback to CFHT. We recommend that Terapix inform the steering group and CFHT of the reasons for rejection. The steering group should justify to SAC why the data cannot be used for their science goals. Without such a justification, the fields should not be re-observed.
>>
>> SAC Recommendation #8 -- CFHTLS Wide extension
>> In order to preserve the legacy value of the Wide component of the Legacy Survey, SAC recommends that the 50-hour extension into 08B be granted to complete the coverage of the W1 field. We do not recommend that the observations of the second epoch of z be carried out. Up to an additional 15 hours in 08B should be granted to re-observe the fields not validated by Terapix if a sufficiently strong case is made to the SAC that the existing data are unsuitable for the LS science goals. This recommendation also applies to the 15 hours that are planned to be used in 08A to re-observe fields not validated by Terapix.
>>
>> SAC Recommendation #9 -- CFHTLS Very Wide extension
>> Because the science being proposed was not in the original allocation of the LS and was not supported by the mid-term review, SAC does not support the proposed Very Wide observations within the Legacy Survey.
>>
>> There is some extra text/justifications along these recommendations, so I
>> recommend a full reading on the www site.
>>
>> In summary, what is asked from us is justify the re-observation of some fields.
>> With the relevant exposures parameters and quality control results presented,
>> this should not be an issue.
>>
>> Jean-Charles.
>
>

-- 
Dr Christian Veillet
Executive Director
Canada-France-Hawaii Telescope
http://www.cfht.hawaii.edu/