(Week 14, 1998)
We had another week of smooth operations of the SXT instrument. See the weekly operations report for details. There were many C-class flares. The GOES time series for the week:
In the display above (click to enlarge), the colored lines show the times of SXT images that currently are on-line at ISAS. The purple lines are flare mode. The gaps will be considerably reduced when the NASA telemetry arrives and gets reformatted. For a summary index listing of the weekly science reports, click here.
Most of the C-class flares came from active regions AR 8185 or AR 8190. The growth of these regions was initially large, but somehow got slowe down. A more interesting phenomenon was emission on the southern limb. This was largely due to a region on the back side of the Sun. When most of the region rotated on to the disk on 4-Apr-98, it was not located at a particularly high latitude. Therefore, the features we saw on the southern limb must have been quite high. They occasionally appeared to be dynamic. The movie of the southern limb is shown below (click to enlarge).