Re: DAL sessions in Victoria

From: Alasdair Allan <aa-at-astro.ex.ac.uk>
Date: Wed, 26 Apr 2006 15:12:06 +0100

Rob Seaman wrote:
> The complications for temporal searching are several. First, you
> need to be able to search in a barycentric (or arbitrary) time
> system. Second, you need to be able to search through some sort of
> evenly gridded comb filter in cadence - something like "return all
> images/spectra whose mid-exposure occurred near an even quarter-
> hour". Third, you have to be able to specify "near" - "within a
> window of plus or minus one minute". Fourth, you may need to be
> sensitive to some very creative observing modes and data structures.

You might want to have a look at the RTML <TimeConstraint> section for this sort of thing...

Al. Received on 2006-04-26Z14:12:53