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.. Headerlet Definition TSR master file
TSR 2012-02: Definition of a Headerlet and Its Role in Updating WCS Information
===============================================================================
.. abstract::
:author: Warren Hack, Nadezhda Dencheva
:date: 22 Oct 2012
A headerlet is a self-consistent representation of a single WCS solution for a single
exposure complete with all distortion information. FITS is the data
storage format currently supported. It has no observational data
which makes it relatively small and light to distribute.
It is, essentially, a mechanism for encapsulating WCS information
which can later be used to update the WCS of a science file and allows
improved astrometric solutions to be stored and passed around easily.
The HST archive is expected to start accepting headerlets for HST data soon.
However the implementaiton is not HST specific and FITS WCS standard, as well as
all WCS conventions implemented in pywcs are supported.
This report describes the format and contents of a headerlet
along with the software implementation and methods for creating headerlets and using them
to update the WCS of a science observation.
Contents:
.. toctree::
:maxdepth: 2
hdrlet_tsr
Indices and tables
==================
* :ref:`genindex`
* :ref:`search`
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