Re: no CISCO observations on Nov.14

From: Chris Lidman (clidman@eso.org)
Date: Fri Nov 15 2002 - 12:43:52 PST

  • Next message: Saul Perlmutter: "Follow-up question for tonight's ISAAC observing plan...Re: no CISCO observations on Nov.14"

    Dear Mamuro,
       I need to correct my previous e-mail. For SuF02-017, please read
    SuF02-071.

    Cheers, Chris.

    Chris Lidman wrote:

    > Dear Mamuro,
    > I will ask Paranal to observe
    >
    > SuF02-017 if the conditions are clear - 10 hour integration
    >
    > SuF02-001 if the conditions are not clear (ie thin cirrus) - 3 hour
    > integration
    >
    > SuF02-019 if the conditions are not clear - 3 hour integration.
    >
    > There is a bit of this cirrus at the moment.
    >
    > Cheers, Chris.
    >
    > Mamoru Doi wrote:
    >
    > > Dear Chris,
    > >
    > > We had no useful observations with CISCO on Nov.14.
    > > Again there was a trouble of the telescope (possibly
    > > the IR secondary support) and we saw strong astigmatism.
    > > We spent half night for Mirror analysis. The image quality
    > > was acceptable in the middle of the night. But then we had
    > > cloudy/hazy sky.
    > >
    > > We will change the secondary from IR to optical, which is
    > > more reliable with little disadvantages for CISCO J-band
    > > observations.
    > >
    > > -Mamoru and Kentaro
    > >
    > > Mamoru Doi
    > > Institute of Astronomy
    > > School of Science
    > > University of Tokyo
    > > voice +81-422-34-5084
    > > fax. +81-422-34-5041
    > > doi@ioa.s.u-tokyo.ac.jp

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