SOHO Daily Meeting Minutes for Friday, 25 May 2001 ANNOUNCEMENTS ------------- * SPWG today at 2 p.m. in EAF. * See Weekly Meeting Minutes for next week's commanding schedule. * The SOCs would like to thank eveyone at MEDOC for all their hard work to make this campaign a very smooth one. FOT REPORT ---------- Spacecraft Status: Nominal Spacecraft Anomalies: None Accomplished Activities: NOM HGA, VIRGO, SWAN, New Tracking Star, TTMH_TOMM_MMTOMH_01144, CELIAS Planned Activities: RSL, VIRGO, CELIAS, New Tracking Star, TTMH_TOMM_MMTOMH_01145,145A Upcoming Operations: None Ground Anomalies: 1642 8.3 minutes TM dropout. D27. Line Problem. Recoverable. SOLAR STATUS ------------ 05/24 DOY 144 - 05/25 DOY 145 EIT daily On-Line Solar Status and observations: http://umbra.nascom.nasa.gov/eit/plan/log_form20010525.html LASCO daily On-Line Solar Status and observations: http://lasco-www.nrl.navy.mil/observations/2001/obs20010525.html INSTRUMENT STATUS ----------------- CDS: Nominal. See MEDOC report. SUMER: Nominal. See MEDOC report. UVCS: Nominal. UVCS will do JOP139 today and through the weekend. Sunday UVCS will begin a solar wind study. LASCO: Nominal. C2/C3 synoptics and JOP139 support. EIT: Nominal. Half res 195 CME watch and synoptics. MDI: Nominal. Full disk/high res doppler campaign for continuous contact. TRACE: Nominal. TRACE will continue to observe AR9463 and AR interconnecting loops to AR9462. MEDOC Daily minutes - Friday, May 25 2001 ----------------------------------------- Announcement: ------------- Telemetry interruptions at MEDOC around 15 UT on Wednesday and Thursday. Telemetry flow resumed after reconnection. Latest observations (Wednesday 23 and Thursday 24) -------------------------------------------------- GOLF (J. Charra) : they proceeded to a readjustement of their scanning of filter temperature and found out that the filter aging leads to a redshift of the bandpass : this has a less-than-1% impact in flux and a quite negligible effect on velocity. CDS (D. Pike) : as scheduled. No big activity on AR 9463 except for a transition region event, stronger than a blinker, at 18.53 UT on Thursday. The action now takes place in AR 9468 where an M flare was reported at 19.44. SUMER (P. Lemaire) : as scheduled. Fe X and Fe XI lines in the quiet corona : farther in the corona, the signal is faint and exposure times must be increased. State of the Sun : ------------------ The southern coronal hole (as seen in 195 and 10830) is taken as a good target since it crosses the limb at the position of the SUMER slit at the end of the week. Friday 25 May: -------------- SUMER 00:00 - 18:00 UT Off-limb HeI (584 A) profile (P. Lemaire) X= +860", Y = +600 to +1600" 19:00 - 24:00 UT JOP 122 (M. Madjarska) X= +860", Y = +0" CDS 0:00 - 03:17 UT Synoptic Meridian Image (0", 880") 03:24 - 12:32 UT Cambridge AR watch TARGET: from (X=+149", Y=+129") to (X=+206", Y=+129") 12:32 - 13:06 UT NIS MCP engineering 13:24 - 19.18 UT JOP139 Flare Helium Abundance with Sac Peak TARGET: (x=+234, y=+138") and (x=+288, y=+138") 19:32 - 23:48 UT JOP122 TARGET: (x=-0", y=-800") UVCS Minisynoptic and JOP139 (06:00 - 24:00 UT) Saturday 26 May : ----------------- SUMER 00:00 - 17:30 UT Widths of Fe coronal lines in a coronal hole region (J-C Vial) X= +860", Y = -600 to -1000" 18:00 - 24:00 UT Off-limb HeI (584 A) profile (P. Lemaire) (X= +860", Y = -435") to (X= +860", Y = -1200") CDS 0:00 - 03:18 UT Synoptic Meridian Image (0", 880") 03:24 - 12:32 UT Cambridge AR watch TARGET: (X=-233", Y=+128") 12:32 - 12:43 UT QCM logging 13:32 - 19.25 UT JOP139 Flare Helium Abundance with Sac Peak TARGET: (x=-105, y=+111") and (x=-58, y=+111") 20:08 - 23:34 UT Off limb corona - North TARGET: (x=110", y=1050") and (x=-110", y=1050") Sunday 27 May : --------------- SUMER 00:00 - 12:00 UT Off-limb HeI (584 A) profile (P. Lemaire) (X= +860", Y = -435") to (X= +860", Y = -1200") 12:00 - 24:00 UT Widths of Fe coronal lines in a coronal hole region (J-C Vial) X= +860", Y = -600 to -1000" CDS 0:38 - 02:21 UT Off limb corona - North TARGET: (x=0", y=870") 02:47 - 06:02 UT Synoptic Meridian Image (0", 880") 06:38 - 11:46 UT Off limb corona - South TARGET: (x=110", y=-1050"), (x=-110", y=-1050") and (x=0", y=-870") 12:28 - 123:16 UT Cambridge AR watch TARGET: (X=+153", Y=+113") Before leaving, D. Pike showed CDS data from April 10, when an M flare occured around 5.26 UT during a CDS synoptic. Although the event took place more than 20 deg from CDS fov, CDS could trace the propagation of warm and hot material through its raster. Impressive proper and Doppler motions (400 - 600 km/s) are derived in OV. Good bye, Dave. The MEDOC Campaign ends on Monday 28 May although SUMER will continue its observations (with the week-end program) until Wednesday morning. Karine Bocchialini thanked all who participated during the 2 weeks and on both sides of the Atlantic. Next MEDOC Campaign (# 8) is scheduled for 15-28 October.