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оригинального документа
: http://xmm.vilspa.esa.es/sas/8.0.0/doc/eexpchipmap_pcms/node4.html
Дата изменения: Wed Jul 2 12:35:53 2008 Дата индексирования: Fri Sep 5 23:13:22 2008 Кодировка: Поисковые слова: юпитер |
| Parameter | Mand | Type | Default | Constraints |
| eventset | yes | dataset | ||
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Name of the event list dataset. This dataset contains information on the instrument, the WCS keywords of the X and Y columns, and exposure information contained in various extensions.
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| templateset | yes | dataset | ||
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The name of a dataset with a template image in its primary extension should be supplied to this parameter. All keywords (except those pertaining to the DSS) in the primary HDU are copied over to the outputs. If outputstyle=`sky', the template image is also necessary to specify the pixel dimensions and World Coordinates of the output.
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| withdss | no | boolean | yes | |
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Whether to make use of information about event selections stored in the Data SubSpace (DSS) of a FITS extension.
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| dssstyle | no | string | templateset | templateset|image|eventlist |
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This parameter is read if withdss=`yes'. If dssstyle=`templateset', the task attempts to read a DSS in the first block of the image template set templateset. If dssstyle=`image', the task looks for the DSS in the first block of dssset. If dssstyle=`eventlist', the task looks for the DSS in the EVENTS extension of eventset.
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| dssset | yes | dataset | ||
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This parameter is read if withdss=`yes' and dssstyle=`image'. In this circumstance the user should supply to dssset the name of a dataset which has the desired DSS attached to its first extension.
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| outputstyle | no | string | sky | sky|raw |
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Whether to write the exposure map in chip (ie CCD, or `raw') or sky coordinates. If the latter, a template image is necessary to supply the correct dimensions and WCS keywords. Note that a `raw' output can always be converted to `sky' after the fact by use of eimchip2sky. The end result should be identical.
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| flatexpimgset | no | dataset | flat_expmap.ds | |
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An exposure map without vignetting, in sky coordinates, is written to this file name if outputstyle=`sky'.
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| vigexpimgset | no | dataset | vig_expmap.ds | |
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An exposure map with vignetting, in sky coordinates, is written to this file name if outputstyle=`sky'.
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| attstyle | no | string | binnedset | binnedset|template |
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This parameter is read only if outputstyle is set to `sky'. To convert from chip to sky coordinates it is necessary to know the spacecraft attitude. However the attitude is never completely stable and may vary significantly during an exposure. In this case the nett sky image must be a mosaic of components from different values of the attitude. A time series of attitude values (such as that made either by attbin
or evproject) can be supplied to parameter binnedattset if attstyle is set to `binnedset'. If it is judged that the attitude wander during the exposure did not exceed some small fraction of the image pixel dimensions, or if the binned attitude set is not available, then the user may choose to set attstyle to `template' instead. In this case a single fixed value of attitude is read from *_PNT keywords in the template image header.
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| binnedattset | yes | dataset | ||
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If attstyle=`binnedset' the user should supply to the present parameter the name of a dataset which contains a time series of the spacecraft attitude variation during the exposure.
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| flatexpcubeset | no | dataset | flat_expmapcube.ds | |
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An exposure cube without vignetting, in chip coordinates, is written to this file name if outputstyle=`raw'.
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| vigexpcubeset | no | dataset | vig_expmapcube.ds | |
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An exposure cube with vignetting, in chip coordinates, is written to this file name if outputstyle=`raw'.
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| Parameter | Mand | Type | Default | Constraints |