This page (revision-57) was last changed on 07-Dec-2016 14:14 by David R Williams

This page was created on 09-Jul-2008 07:16 by David R Williams

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At line 100 changed one line
''Author''\\
__Author__\\
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''Raster Type''\\
__Raster Type__\\
At line 108 added 2 lines
If ''n'' is the number of positions that the slit makes an image at, Σ ''t%%sub exp%%'' is the sum of the exposure times (usually there is only one) at each position (in seconds), and ''x%%sub step%%'' is the size (in arcseconds) of the step, then it takes ''n'' × Σ ''t%%sub exp%%'' × ''x%%sub step%%'' seconds to build up a spatial image of an area that is ''n'' × ''x%%sub step%%'' arcseconds across.
At line 110 changed one line
This tells you whether this is a fixed-position observation.
__Slit/Slot__\\
EIS makes images of different widths every time it takes an exposure (and disperses it). Slit spectra contain direct spectroscopic information, but take time to build up information over areas (see ''Raster Type'' above). For more image-based information, at the expense of line profile information, we can make slot image (scanning or sit'n'stare).
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__Raster Title__\\
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__Compression Type__\\
__Window Height__\\
__Number of Raster Pointings__\\
__Exposure Times__\\
__Delay Times__\\
This page (revision-57) was last changed on 07-Dec-2016 14:14 by David R WilliamsTop