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Previewing Data
Previews are available from the results pages of most of the mission searches.
Preview pages for most MAST missions include the following information:
HST previews for science observations are created by CADC.
HST previews are stored as FITS files and the gifs are created on-the-fly.
Users may retrieve the preview data in a variety of formats including the original FITS file.
Just beneath the gif image are two links. The link "FITS format" will download the original FITS file.
The link "More preview format options" will bring up a page so that you may choose the format you desire.
There are two sets of IUE Previews. The most commonly used previews are those constructed from the IUE Final Archive data "mx" or extracted data files. These previews are displayed by clicking on the data id in the search results page
The preview contains a link to more information about the MX previews.
The IUE browse files were conceived and originally implements by Dr. Derck Massa, Dr. Nancy Oliversen,
and Ms. Patricia Lawton, then members of the GSFC Astrophyics Data Facility (ADF) staff under direction
of Dr. Michael Van Steenberg. Some modifications were made as part of the transition to MAST maintenance.
Near the bottom of the preview page there are a set of links. One link is to the SI browse file, the image file from which the spectra were extracted. More information on the SI browse
files is available from a link on the SI preview page.
The IUE was operated from two different tracking stations: GSFC for NASA and Villafranca Spain for ESA.
The original observing notes for the data acquired from the GSFC station have been scanned and are available
from a link on the IUE preview pages. To keep down costs, the exact mapping between the scanned page
to the image sequence number was not made at the time of scanning. A good guess can be made, and the link to the
program that guesses which scanned page is of the desired observing script is available from the preview page.
Look at the thumbnails from the pages nearby the best guess and click on the appropriate thumbnail to see the entire observing script.
Previews from Search Result Pages
HST Previews
FUSE Previews
FUSE previews are provided by the FUSE project. There are two versions of previews.
For data that was processed prior to September 2002, there is a simple quicklook preview.
For data processed after September 2002, in addition to the "quicklook" preview
there are links to four gif images showing summed plots for each channel (i.e., A and B) for each detector (LiF1, LiF2, SiC1, SiC2). Following the summed detector plots is a table of links to gif images showing data from the individual exposures. There is a web page with more information about FUSE browse files or previews.
IUE Previews
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