Date: Wed, 14 Jan 2004 20:20:58 -0500 (EST)
From: jegunn
Subject: Re: 2.5m obslog 20040113 (MJD 53018)
Thanks, Dan. Makes feel good.
--jim
On Wed, 14 Jan 2004, Dan Long wrote:
> Sorry Connie,
>
>     This was my fault.  When I put the shake plan together, I tried to
> just put in the parts of the original shake procedure relevant for
> this test of the guider.  I obviously trimmed too much.  I realized
> the omission when I ran it last night.
>
>     The good news is that last night, under a wide variety of
> conditions the guider did wonderfully.  It was even making proper
> corrections when the efficiency dropped below 10% in a passing
> thicker cloud.  The old guider would start guiding on hot pixels at
> these levels and walk away from the target at about .5 arcseconds per
> update.
>
>     We will continue to use the guider this run.  If at the end it has
> performed with no problems.  We should indeed make it the default in
> the next version of iop/sop.
>
> 				Cheers,
>
> 				  Dan
>
> >On Wed, 14 Jan 2004, jegunn wrote:
> >
> >Yes, you have to tell SOP you want to use the new guider code
> >(gGuide on) before loadCartridge, as that tells loadCartridge to
> >set up the dark frame.
> >
> >The procedure does say to do it that way, and that is why.
> >I am sorry I missed the other night's confusion, or I would
> >have responded more quickly.
> >
> >If you like the new guider (and your response sounds as enthusiastic
> >as Dan's reaction while we were out there in December) we can change
> >it to be the default for next run.
> >
> >You can also use it this run; just gGuide on at the beginning of
> >every SOP session.
> >
> >--connie
> >
> >
> >
> >
> >>
> >>  It was clear night before last that the dark subtraction was not
> >>  working. I presume that the initialization is done in the loadC
> >>  command (like processing the darks for hot pixels, making the hot
> >>  pixel list, etc)--Connie??? If so, that processing must be done
> >>  with the new code turned on, since the old has no notion of any of
> >>  these things.
> >>
> >>  --jim
> >>
> >>  On Wed, 14 Jan 2004, Jurek Krzesinski wrote:
> >>
> >>  >
> >>  >                        APACHE POINT OBSERVATORY SDSS 2.5M
> >>  >
> >>  >                                  OBSERVING LOG
> >>  >                             Tuesday January 13, 2004
> >>  >
> >>  >                                   (MJD 53018)
> >>  >
> >>  > ---=== OBSERVING TEAM ===---
> >>  >
> >>  > swing:          Steph Snedden
> >>  > night:          Dan Long
> >>  >                 Jurek Krzesinski
> >>  >
> >>  > ---=== OBSERVING PLAN ===---
> >>  >
> >>  >         Science!
> >>  > ---=== OBSERVING SUMMARY ===---
> >>  >
> >>  >  Not a good night - two exposures on one plate were good, the rest didn't
> >>  >  make it. Clouds and moon won this time.
> >>  >
> >>  >  A good news is that gGuider worked wery well tonight even on faint stars!
> >>  > The only difference between yesterday and today was, that today we started
> >>  > gGuide then we issuied loadC command, while yesterady we loadC then
> >>  > started the gGuide.
> >
> >
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