VV report for obsid 16247 - Crab Pulsar (in M 1)

Review Status: warning
Comments: The MCP HV levels and the trigger threshold of the instrument were set to non-standard values and as such the instrument is no longer calibrated. Use of the LETG grating with HRC for an extended source results in a degradation of the spectral resolution. There is no longer a unique mapping between position of an event on the focal plane and wavelength. Reprocessed using custom gti limits file. psethrc_lev1std_limits=’/dsops/ap/sdp.10/14687/hrcs_crab_gtilimN0001.fits’. The default gain file was used. The LETG was used primarily as a filter on the zeroth order.