Date: Wed, 15 Nov 2017 09:16:28 GMT
Subject: cross ?
Full_Name: Yael Naze
Submission from: (NULL) (220.127.116.11)
I've looked at data from Rev 3097, ObsID 0793183001. In the pn data, at the
bottom left, there is an off-axis bright source which is Cyg OB2 8a : strangely,
the pn filtered event file (grade 0-4, flag 0) seen in ds9 has a black cross in
the middle of the source (looks like 5 pixels masked). The spectrum seems
normal, though. Note that the source is also far from pile-up.
Are data ok nevertheless ?