Computer upgrade / network problem/ pipeline version 4
xassist.pha.jhu.edu was down due to a network interface problem. It is now back up on a backup machine. We will be moving the site (and pipeline data) to a new machine over the next week or so. In the meantime access to the pipeline3 data will be limited as it is copied over. However version 4 of the pipeline has been running and will be available. The main difference from version 3 is using more recent versions of ciao (4.x compared to 3.3) and sas (9 vs 6.5). In the case of xmm an additional improvement is that the 10-20 keV "events" are used to initially filter the background flares before source detection is run. The normal background light curve cleaning in the 0.3-10.0 keV band is performed after source detection.