From: Mamoru Doi (doi@ioa.s.u-tokyo.ac.jp)
Date: Wed Nov 06 2002 - 04:55:24 PST
Rob,
O.K. We somehow thought simlar thing.
We are going to take 8 exposures.
So it should be O.K. We chose SXDS_5, because number
of "holes" seem to be smaller in SXDS_5.
We won't bother SXDS team this time.
-Mamoru
>On Wed, Nov 06, 2002 at 09:45:59PM +0900, Mamoru Doi wrote:
>
>> We are in the middle of SXDS_1 observations
>> (seeing ~ 0.60aecsec), and we
>> will start obs. of SXDS_5 in 15min.
>>
>> Do you really need special dithering patterns
>> for the first two exposures? We are having 8x5min
>> exposures.
>>
>> Since the default dithering pattern is determined
>> by the SXDS team, it is very difficult for us
>> to ask a special pattern.
>>
>> Could you tell me the reason?
>
>We will be OK without special dithering patterns.
>
>The reason was just filling in the "holes" where we had omitted images
>due to bad seeing. If only a few images were to be taken, that would be
>best.
>
>How many exposures are they going to take? If it's more than five or
>so, then the specific dithering pattern doesn't matter at all-- it's
>best if they just repeat what they did previous nights-- in other words,
>thesame size of dithers and roughly same directions, but in whatever
>order they want to do them.
>
>-Rob
>
>--
>--Prof. Robert Knop
> Department of Physics & Astronomy, Vanderbilt University
> robert.a.knop@vanderbilt.edu
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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