This was caused by a large (S3 class) radiation storm which hit us at about 313:2330 Nov 08, 2000 Shift Report ------------------------- Solar radiation levels are currently low although there is a slow upward trend. Kp levels have been varying between 2 and 4 over the last day. A Full halo CME was reported at about 5am UT this morning; we may see its efects later on this week. Nov 09, 2000 Shift Report -------------------------- A RADMON trip and SCS 107 execution was noted by the OC's and confirmed by the FOT last night during the 314:0010 COMM pass. This was caused by a large (S3 class) radiation storm which hit us at about 313:2330 or so. EPHIN rates were highly elevated above the trip levels during the 314:0010 pass and remained high at the 314:0945 pass. ACE low energy proton rates are high (40,000) and slowly drifting up. Radiation telecon: * Radiation and particularly EPHIN levels are too high now for a resumption of operations with NGC4111 tonight. * Will re-plan for intercepting load at first observation after perigee passage, which is B2 2236+35, starting at 315:2359. Load review tonight. Plan to uplink tomorrow during day. * Will have a review telecon to assess radiation situation prior to uplink. Details will be published by Dan Shropshire via E-mail. * Real-time cleanup CAPS need to be run: - Enable SCS 107 - Enable HRC SCS's Nov 10, 2000 Shift Report ------------------------- We are still in SI-SAFE condition due to RADMON trip yesterday. Radiation levels still high as we head towards perigee at 315:16:28. ACE levels went up at about 315:0600 to a flux of over 700,000 - contaminated by electrons. As of 315:1500 they had gone down to about 130,000, with a slow decrease being observed. This is in response to the CME released at 2330 of Nov 8, which accompanied the solar storm. EPHIN rates were still elevated (P4GM > 3000) at 315:0400 pass when we were still well out of the rad belts. P4GM was still about 3000 during last pass at 315:1300 but we were near the belts. Radiation telecon notes: * Radiation and particularly EPHIN levels are still too high now for a resumption of operations tonight * Went over several options for resumption of science observations * Decision was to attempt to restart with obsid 17 (AU MIC) but about 2 hours earlier than currently planned (brings obs time to full 60KS request). * Observation 17 will start about 317:0600 or so (1am Sunday Nov12). * Need to uplink load at 316:0100 pass (Saturday night at 8pm EST) * Another telecon scheduled 316:0545 (7:45pm EST Saturday night) to evaluate radiation * Dan Shropshire will send out details via E-mail