EPIC Effective area vs. Energy openPar3C58closePar

CAL we will observe the Crablike SNR 3C58 to measure the spectrum to revealdepartures from a simple powerlaw fit that may be caused by groundcalibration inaccuracies. This object is not subject to pileup effects so that we can be sure that spectral residuals will be more likely due to calibrationerrors in the response matrices. In addition, offset pointings are made tomeasure the energy dependent vignetting (in y direction to ensure we miss abright star on the planned dates). Epic overheads of 4 ksec per exposure havebeen assumed. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]