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Hi. This is meant to be a super quick introduction to the Spitzer Heritage Archive. When you
first load the Spitzer Heritage Archive, or SHA, you get dropped into a position search
because that's the most common kind of search. You can put in a name and have either NED
or SIMBAD resolve it. You can put in coordinates in any of a variety of formats. Let's put
in M101. It echoes below the box what it thinks you've typed. The radius by default is 500
arcseconds. If you want to use a different unit, pick the unit and then change the number.
Because otherwise, if you put in the number first, and then change the unit, it will convert
the number that you've put in. An Astronomical Observation Request is an AOR and is the fundamental
unit of Spitzer observing. Level 2, or post-BCD products, are processed products from our
pipeline, such as mosaics or extracted spectra. Level 1, or BCD products, are the individual
frames that go into the Level 2 products. You can also get enhanced products. The SSC
Enhanced Products from the IRS team include reduced spectra. The Spitzer Enhanced Imaging
Products super mosaics are mosaics of all the available AORs at a given point in the
sky. And, the Spitzer Enhanced Imaging Products Source List is a source list of the sources
derived from the super mosaics. Contributed Enhanced Products are those donated by the
community, primarily the Legacy Teams. If you leave all of those checked, you'll get
all of the available processed data in addition to the observations that went into them. Let's
search!
For each one of the boxes we picked, we have a tab in the result. The AOR tab is the most
compact view of the observations. Each one of the rows corresponds to an individual observation
of the target. Red rows are still proprietary data. When you go from the results pane and
pick a row over on the right hand side, you can get details about the original proposal
that went into it, and the observation that you're looking at. If you click on AOR Footprint,
you will see a footprint of the observations on a background image. The Level 2 tab is
the Post-BCD products, in other words, the mosaics or the extracted spectra. The Level
1 tab are the individual frames that go into the observations. If you want to see the individual
frames from just one observation, click on that one observation, ensure that the checkbox
is checked, and make sure that "restrict data in other tabs" is selected. Then, the only
things that appear in the post-BCD tab are the mosaics that came out of that observation.
And, the Level 1 (BCD) tab have just the individual frames that went into that observation. The
IRS Enhanced tab will show you just the spectra that it finds that are consistent with your
search parameters. In this case, it found one. If that row is selected, and you to data,
you can look at the individual spectrum, as shown. The Super Mosaics tab shows you all
of the super mosaics that it finds in this region. That's the real data there. On top
of that, there is a catalog. That catalog is the Source List here. The Contributed Products
tab includes additional donated products that it found consistent with your search. It found
images from three different Legacy teams - LVL, SINGS, and S4G - and catalogs from S4G. To
find out more about these individual projects, click on "more", to be taken to a web page
that tells you more about the individual project. To load the images, click on the name of the
project, and another tab is spawned with the images that it found. To make it go away,
click the x. To load the catalog, similarly, click on the name, and the catalog will appear.
To download data from the AOR tab, Level 2 tab, or the Level 1 tab, you can either click
the box on the top of the column to select all of the observations that it has found,
or you can select individual observations. Then, click on 'prepare download.' It pulls
up a pop-up that asks you exactly what you want, and you can tell it to prepare download,
sending you email when it's ready if you choose. It will spin off the packaging to the background
monitor, and will let you know when it is ready. To download IRS enhanced products,
Super Mosaics, or Source List, it behaves similarly. You can click on the box on the
top of the column to select all, or you can click individual rows. There are lots of other
ways to search the Spitzer Heritage Archive. You can search by abstract text - for example,
you can look for all projects that set out to observe planetary nebulae. You can search
by AORKEY, which is the large, unique integer that identifies each observation in the archive.
You can search by campaign, you can search just the IRS Enhanced Products. You can search
for moving objects. You can look for moving objects that were serendipitously caught by
using the precovery tool. You can search by observation date. You can search by observer,
and you can search by program.