|Space Telescope Science Institute|
|WFC3 Data Handbook v. 3.0|
WFC3 images obtained using any of the three grism elements require special handling during pipeline calibration. calwf3 processing of grism images does not include extraction or calibration of the spectra. This must be done off-line using special tools.
The aXe software and documentation can be downloaded from: http://axe-info.stsci.edu/.
The aXe cookbook is also available for download from: http://www.stsci.edu/hst/wfc3/documents/WFC3_aXe_cookbook.pdfThe aXe software package was developed by the Space Telescope European Coordinating Facility (ST-ECF) and is now maintained by STScI. It may be used with ACS slitless modes, and for the reduction of WFC3 spectroscopic data. This package enables automatic and reliable extraction of large numbers of spectra from individual images. WFC3 grism data calibration and analysis, including an overview of aXe processing, is discussed in Section 9.4