Carlos GABRIEL
ESA-SAI
Ingolf HEINRICHSEN
MPIK
The PHT-Interactive Analysis, PIA, (see ``The ISOPHOT-Interactive Analysis (PIA), a calibration and scientific analysis tool'' by the same author, in this conference) includes a full graphical interface, context sensitive, to access and process ISOPHOT mapping data. ISOPHOT's mapping modes make use of the ISO satellite pointing capability (for recording data from a two-dimensional regular grid of telescope pointings within one observation) and the ISOPHOT chopping possibility (changing the detector observing position in one axis direction during one fixed pointing). The PIA mapping software uses as input PHT data from one of the mapping modes. It offers the possibility of processing to an image from data, which have been preprocessed to the level of brightness densities (in [MJy/sr]). The combination of data from different detector array pixels, raster and chopper positions to an image is done according to an absolute free preselection on image pixel sizes. Detector array pixels can be individually selected or deselected and automatic flat field algorithms can be used for correcting data. The obtained maps can be saved into different formats (IDL internal, FITS, GIF). Accessing them, and also the products of the ISO Standard Product Generation (those distributed to the ISOPHOT observers) represent the other direct input possibility. Map drawing menues allow for further image processing techniques, like color tables handling, color interpolation, stretching, gamma corrections, cutoff settings. Contours can be obtained as well as 3-D views of the maps. Profiles can be plotted, regions of the maps zoomed. For comparisons between maps taken using different filters, convolutions to the resolutions of all the PHT filters are incorporated. In the poster one example is given, which includes observations of one object using different filters and performing maps and scans on the object, for showing the capabilities of the PIA mapping S/W and its user friendliness.