The request dealt with an IPS (Inter-Planetary Scintillation) phenomenon
seen on 12 Jan. 1998. This would correspond to a solar disturbance on 9
Jan. plus or minus. The Yohkoh data are not yet fully reformatted for this
interval of time, but we don't see anything much. The on-line data coverage
is listed here. We have taken two standard SFD
images (the standard movie images, not the best for this purpose but still
good) spanning the time interval shown and made a difference image:
This shows only effects attributable to solar rotation and the normal coming and going of miscellaneous things.