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Last modified: 20 July 2010

Why do I get the following warnings?

WARNING: OSIP file contains invalid data for the region
512<=CHIPX<=768 608<=CHIPY<=640 at 0.1 keV.
WARNING: OSIP file contains invalid data for the region
512<=CHIPX<=768 608<=CHIPY<=640 at 0.277 keV.

This warning is innocuous. Events at energies < 0.3 keV are pretty much outside the supported range of wavelength by HETG/ACIS-S (the events would fall off the chips). The gARFs should be fine for use in the analysis.



Last modified: 20 July 2010