Bright non-group comet entered the C3 FOV on 2004/12/16 at 04:42 UT from the right hand edge (above the equatorial plane). It shows a fairly nice tail. Still in the C3 FOV (upper left quadrant). - Telemetry Keyhole # 7: 2004/12/13 - 2004/12/29 (intermitent contact). - Spacecraft Maneuvers on 2004/12/21 (Tuesday). Therefore, LASCO will be closing for the S/C maneuvers (Station keeping, Momentum management, and 180 deg roll) between Dec. 20 (~20:30 UT) - Dec 23 (~ 20:45 UT). - EIT pre-bake cals taken on Saturday 2004/12/11 between 15:24-18:30 UT. The CCD bakeout started at 18:47 UT. The end of the bakeout will be on 2004/12/28 at 10:00 UT. Therefore, no EIT images during that period. - During the Keyhole, LASCO will observe with DSN gap recording availability thanks to the FOT and the SOCs hard work. C2 and C3 will observe at a standard synoptic plan of C2 at 10 minute cadence and C3 at the 30 minute cadence with the daily pB and flat field images.
MOSTLY QUIET. 15:36 - 20:12 UT Temporary Data Gap. 20:24 UT N East Slow development of a very faint system of loops.
02:36 - 09:36 UT Temporary Data Gap. 09:48 UT N East Faint loop front already under development after data gap (already close to the outer edge of C2). Also by that time a ragged front starts to be discerned at the northern leg of the loop followed by gusty outflow in the form of small blobs along streamer. 10:24 UT W Limb Bright loop front with twisted inner core. By 11:24 UT, faint and diffuse extensions can be seen above the N Pole. No significant X-ray activity was reported by GOES by the time. 13:48 - 22:00 UT Temporary Data Gap.
00:12 UT W Limb Faint ragged front. 03:00 - 08:36 UT Temporary Data Gap. 08:48 UT S East Faint loop front (fainter to N) already under development after data gap. 09:36 - 20:12 UT Temporary Data Gap. 20:24 UT NN East Ragged fronts along streamer (gusty outflow) already under development after data gap, well into next day.
00:36 UT N West Jet-like front. 01:48 UT ES East Faint and diffuse spray-like front. 09:48 - 14:48 UT Temporary Data Gap. 14:48 UT E Limb Big ragged loop front already under development after data gap. LASCO will be closing doors at 20:30 UT. It will reopen at ~ 20:45 UT on 2004/12/23 (Thursday).