The AN4 cards were swapped on this day. A new card for channel 0 and the card that was currently in channel 0, back to channel 1. The data afterwards look much nicer. Data from 17:39 to 19:09 are calibrated using times 18:54 and 19:01 UT. Data from 20:09 to 20:52 are calibrated using times 20:25 and 20:32 UT. Cathy (1/24/96)