26 Jan 1998 SOHO Daily Meeting Minutes Chaired by: L. Allen (S0C)/J. Newmark (SOL) Notes: E. Zamkoff (MDI) Announcements ------------- * DSS-27 was fixed on Friday night and tests of commanding were good. FOT uplinked commands. High volume, and rate of dummy commands were performed by two instrument teams on Saturday, successfully. Various work was performed on various pieces of antenna equipment to fix it. Thanks to FOT et al, who had JPL fix the problem * Speaking of DSS-27, last week UVCS reported ratty data on Jan 20 and Jan 21. A retransmission of data was requested for 2 APIDs (UVCSSC, ELASCL). UVCS sees that the retransmitted data looks much better so it was probably something in the network lines causing the degraded data. FOT REPORT ---------- Spacecraft Status: Nominal Spacecraft Anomalies: None Accomplished Activities: Day 023: RSL,VIRGO Day 024: RSL,VIRGO Day 025: RSL,VIRGO,CELIAS Planned Activities: RSL,VIRGO,CELIAS(2100),New Guide Star (6.65, slot 3) Upcoming Operations: 2/1/98 TR MAINTENANCE/MEMORY DUMPS Ground Anomalies: 023/1838 1 Min TM Dropout D16 Lost Antenna Hydraulics Nonrecoverable 023/2132 6 Min Lost Commanding D46 CPA Crash 2 Lasco cmds failed. 24 min NRT lost 024/0640 3 Min Commanding Delay D66 Incorrect Sweep time by station 024/1613 1.5 Min TM Dropout D27 Nonrecoverable. Problem between JPL & NASCOM 024/1742 27 Min TM Dropout D27 SCP Failure Nonrecoverable 025/1115 7 Min TM Dropout D66 TGC Failure Nonrecoverable 025/1409 4 Min TM Dropout D27 Recoverable T1 line to GSFC lost 025/1932 24.5 Min Commanding Lost D46 Bad PA. 1932-1952, 2246-2250 025/1948 20 sec TM Dropout D46 SFG Hit Recoverable 025/2142 Antenna Stowed due to PA problem D46 53 Min of VC3 lost. SSR to Record 026/0008 2 Min TM Dropout D46 Station Misconfiguration Recoverable 026/0143 6 Min Command Delay D46 CPA problem Delayed VC2 to VC3 transition 026/0640 4 Min Late AOS D66 Commanding Delayed SOLAR STATUS ------------ Sunday: Small CME on W limb at 05:00, filament on disk erupted at 10:28 and had arcade formation, a Moreton Wave and a halo CME, AR on NE had an M class flare at 21:35. Today: Jet from bright point at N pole at 09:00 today. AR in SE has nice sunspots. INSTRUMENT STATUS ----------------- CDS: Nominal. Yesterday: JOP 74. Today: real time monitoring tests. JOP 74. Tomorrow: JOP 77, real time monitoring tests. SUMER: Not observing. UVCS: Nominal. Yesterday: flat field on the Ly-a redundant portion of the O VI channel. Today: JOP 77 looking at West limb streamer at 1.6 Rs and at a polar angle of 270. Tomorrow: JOP 77. LASCO: Nominal. Synoptic program and C2 high cadence program on West limb. EIT: Nominal. 195/171 ratio observations resume this week thanks to DSS-27 getting fixed. These observations will support JOP074 and JOP 77. MDI: Nominal. Continuing dynamics program of high cadence velocity images.