SOHO Telemetry Submode changed to Submode 5 on 2004/04/13 at 16:00 UT (SUMER began observing on 2004/04/14). SUMER campaign runs until 2004/06/17. In other words, LASCO synoptic observation plan cadence remains the same but the EIT CME watch images will be reduced to half-resolution (512x512) during that period.
02:50 UT N West Ragged front that quickly fades. Event signature in EIT Fe XII running difference images starting at 02:12 UT right on the NW limb. Material moving all along a rising loop. 05:50 UT E Limb Ragged loop front that fades throughout C2. Backsided CME seen on E Limb in EIT Fe XII starting at 04:48 UT. 08:26 UT N West Another ragged front preceding another similar one at 11:26 UT slightly to N. 10:50 UT E Limb Ragged loop front developing slightly toward SE. Slow twisted structure develops behind. Backsided CME (fainter than the previous one) seen in EIT Fe XII at ~ 10:14 UT to S of event reported to start at 04:48 UT. 23:26 UT N West Wide though faint and diffuse loop front. It fades throughout C3.
10:50 UT ESE Limb Bright loop front and trailing material. Big signature of a barely backsided CME in EIT Fe XII running difference images above the ESE limb. Intensity disturbance seen traveling toward the S Pole all above the SE limb. Wave on disk by 11:12 UT.