Hi,

There are a few big EIS fits files which are not easy to process by "eis_prep", for example:

20/eis_l0_20070820_170353.fits.gz 122M 21/eis_l0_20070821_000022.fits.gz 118M 21/eis_l0_20070821_133226.fits.gz 117M 22/eis_l0_20070822_023009.fits.gz 116M 23/eis_l0_20070823_191420.fits.gz 94M 24/eis_l0_20070824_001531.fits.gz 92M 24/eis_l0_20070824_105128.fits.gz 120M 25/eis_l0_20070825_015152.fits.gz 99M 25/eis_l0_20070825_050529.fits.gz 95M 25/eis_l0_20070825_093750.fits.gz 89M 26/eis_l0_20070826_005803.fits.gz 97M 26/eis_l0_20070826_055213.fits.gz 92M 27/eis_l0_20070827_045520.fits.gz 97M 27/eis_l0_20070827_170835.fits.gz 81M 27/eis_l0_20070827_210723.fits.gz 79M 28/eis_l0_20070828_005937.fits.gz 72M

These fits files are mostly generated by study "": doing full-ccd scan (often over 80 raster positions).

The typical error message is: "unable to allocate memory to make array"

However, the machine that running "eis_prep" has 4GB memory, which is fairly big.

Is there any way to do 'eis_prep' with these big fits files? Or do we need to suggest that normally do not use full-ccd scan with too many raster postions?

Regards, JianSun