Putting the pieces together...
Ivo Busko
busko at stsci.edu
Thu May 13 13:13:17 PDT 2004
Thomas McGlynn wrote:
<snip>
> Issue 8.C. This is a hard step. How does VSPlot know enough to distinguish
> between raw and background subtracted spectra and the myriad details like that?
> Is this a characeristic of the flux column or of the entire spectral file?
> This seems to be where all of the discussion of measurements and quantities
> needs to provide some benefit to the user.
An extra little nastiness to this is the issue of data quality values.
There might be instrument-dependent data quality values associated
with the flux values. How to handle them in an instrument-independent
way? The user may want to build a query that will retrieve data with
"less
serious" anomalies (on a per sample basis), but will discard data with
"serious anomalies".
We already faced a similar problem within the AVO Science Demo context
when
ingesting ISO data. Since it is a prototype, we hard-coded the solution
in
the software, but that approach clearly won't work in a production
environment.
-Ivo
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* Ivo C. Busko, PhD e-mail: busko at stsci.edu *
* Senior Systems Software Engineer *
* Science Software Branch *
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* Space Telescope Science Institute FAX: (410)338-4767 *
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