The
National Aeronautics and Space Administration (NASA) creates a manifest for each mission. The manifest displays the new components that
will be installed on the telescope, in order of importance.
From information in the manifest, NASA prepares
the “Extra-Vehicular Activity (EVA) schedule” (top, right).
The EVA schedule lists the space walks the astronauts will perform
to service the Hubble Space Telescope, showing when tasks will be
conducted and the time it will take to complete them.
In this mission, Hubble gets vital replacement
parts that take advantage of the newest technology and will help
ensure the health and well-being of the telescope. It also gets
one new instrument that replaces an older, less advanced one.
Notice that scientific instruments and
equipment are listed on the EVA schedule as acronyms.
Scientists use these abbreviations because many projects and instruments
have long names. The shorter acronym saves space on the chart.
