From: Saul Perlmutter (saul@lbl.gov)
Date: Fri May 31 2002 - 10:21:04 PDT
Note that this 6 hours and 20 minutes of FORS2 spectroscopy time is in
addition to the 7 hours of FORS2 time for imaging.
If we can do it, our *highest* priority is still S02-075 (which is being
followed by HST). Then we could try to get spectra of a few more of
the best candidates from CFHT. We might consider then following them
(if the spectrum looks interesting) the next day with FORS2
imaging. The main issue here would be whether this imaging time
needs to be saved for getting a deep final point later in the light
curve.
attached mail follows:
Hi Saul,
You are not too far of the mark. All the FORS1 time was used. By my
calculation, we still have 6 hours and 20 minutes of FORS2 time left
for spectroscopy.
The weather on Paranal is still very poor. This has been one of the
poorest months we have had in a long time.
Cheers, Chris.
Cheers, Chris.
Saul Perlmutter wrote:
> Hi Chris, I was looking at our email from last month when we were
> doing that last trade of FORS2 time to get some FORS1 time, and it looks
> like at that time we still had almost 12 hours of FORS2 spectroscopy
> time left unused. Did we end up getting any of this traded time
> actually observed (or were these all unused hours with bad weather)?
> After that, I thought that we got about 4 or 5 hours of time during the
> following FORS2 run (almost all May 18th). This would suggest that we
> still have some 7 hours or so of FORS2 spectroscopy time left now.
>
> If this is at all close to the right number then we should probably
> think very quickly about our best priorities for this time, since the
> upcoming four FORS2 nights would be the last time we have in which we
> might still have supernova light to get a spectrum, and this is still an
> appreciable number of hours for us to use.
>
> Of course, I may be wrong in my very quick calculation and we might not
> have this much time left! ---Saul
>
> ------------------------------------------------------------------------------------------------------------
>
> Subject: Re: Compensation time and S02-002
> Date: Thu, 09 May 2002 02:26:55 -0400
> From: clidman@eso.org
> To: Saul Perlmutter <saul@LBL.gov>, Lifan Wang <lifan@panisse.lbl.gov>
> CC: Saul Perlmutter <S_Perlmutter@LBL.gov>,
> Greg Aldering <aldering@panisse.lbl.gov>, Isobel Hook <ihook@gemini.edu>,
> Ariel Goobar <ariel@physto.se>, Reynald Pain <rpain@in2p3.fr>,
> Gabriele Garavini <gabri@physto.se>
> References: <3CD8DDA7.1E5E09DA@eso.org> <3CD8F683.DFCC80D5@eso.org> <3CD8C7A9.E334E074@LBL.gov>
>
> Dear Saul,
> For FORS2, we have used 5 hours and 10 minutes. We should have another 14 hours and 50 minutes left.
> My idea is to swap 3 hours of this time for 6 hours of FORS1 times, so that we have 6 hours of FORS1
> time and 11 hours and 50 minutes of FORS2 time.
>
> For ISAAC, I had meant S02-002. I will need to know in a few hours time if we should go ahead with these
> observations.
>
> Cheers, Chris.
>
> Saul Perlmutter wrote:
>
> > Chris, Can you remind us how much FORS2 time is left (from which we are drawing these three
> > hours)? Will it still be possible for you to request more or less time to be swapped, depending
> > on how our searches are doing tonight and tomorrow? (I basically think your idea to make this
> > request sounds good, by the way -- I'm just trying to understand the implications and
> > possiblities.)
> >
> > clidman@eso.org wrote:
> >
> > > Dear Saul,
> > > I will word my request, which will be sent directly to the director, so that we swap three
> > > hours of FORS2 time for six hours of FORS1 time. If this is OK with the SCP exec, I can send
> > > the request tonight.
> > >
> > > FORS1 service starts on the 9th and ends on the 14th.
> > >
> > > Cheers, Chris.
> > >
> > > clidman@eso.org wrote:
> > >
> > > > Dear Saul,
> > > > Given last night's errors, I plan to ask for 3 hours of compensation time with FORS1.
> > > > As this is compensation time, we will not loose any time for the May 15th to 18th FORS2
> > > > run. I could also ask to have 3 hours of FORS2 time transferred to FORS1 from FORS2, so that
> > > > we would end up with six hours of FORS1 time and 12 hours of FORS2 time.
> > > >
> > > > Please let me know if this is OK as we should do it soon.
> > > >
> > > > Cheers, Chris.
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