Building Sequence Database Files for the
Hopkins Ultraviolet Telescope
As mentioned above, information on potential guide stars for use with
each observation will be retrieved by HUT personnel and entered into
each SDF automatically. These data will include positional
information relative to the target, the HST GS magnitude, and the
guide star ID number. When the digital image data are available,
a hard copy of the field will be produced and placed into the numbered
manila folder for each object. Our software will also produce a plot of
the field to the same scale as the image, with guide star
identifications cross-referenced to the SDF entries. Clear overlays of
this plot can be placed on the image to assist in identifying which
guide stars to use for a given target.
There are rules for choosing guide stars which are based on operational
or safety issues, but there is also an element of "art" involved.
Below we present these rules, and then discuss some additional
guidelines that should prove helpful.
This document was translated by mm2html v1.3 on 13.07.94.
Jon