LASCO/EIT Operations Status Daily Reports -- September 1997 30-Sep-1997 (C1-C2-C3-EIT synoptic; HRTS Rocket Underflight) HRTS Rocket scheduled launch 20:05 UT. C1 support taking 10 step north polar limb FeX line scans ~50 min cad. C2 full field images ~50 min cadence, C3 full field ~1 1/2 hr cad. EIT subfield support in 304, 171, and 195 ~225 sec cadence. Rocket support starting at 18:00-24:00 UT. Comet SOHO-30 discovered by D. Biesecker. Comet in C3 field of view Sep 29, 1997 at 20:45:54- Sep 30 at 03:10:05 UT. 29-Sep-1997 (TM Submode 6; Synoptic Sequence; C1-C2-C3-EIT synoptic) TM Submode 6-to-5 transition ~22:05 UT NRT testing of C1, EIT sequences for 30 Sept. HRTS rocket support 28-Sep-1997 (TM Submode 6; Synoptic Sequence; EIT No Comp testing) NRT testing of the 171 and 304 images in no compression processing. 27-Sep-1997 (TM Submode 6; Synoptic Sequence; EIT No Comp testing) NRT testing of uncompressed EIT image processing; 195, 284 images (an attempt to increase ff image cadences for rocket support) 26-Sep-1997 (C1-C2-C3-EIT synoptic; TM Submode 2 test, TM Submode 6) TM Submode 2 tested 15:00~19:00 UT (EIT AR program) TM Submode 5-to-6 transition 19:07 UT EIT CME Watch/LASCO synoptic Take Sequence loaded for weekend operations through 29 September 1997 25-Sep-1997 (C1-C2-C3-EIT synoptic; TM Submode 3 test) Test of new TM Submode 3: 32 packets instead of 24 TM Submode 5-to-3 transition ~19:08 UT (LEB active and processing image during transition) 24-Sep-1997 (C1-C2-C3-EIT synoptic; Minor Ions) final iteration of Minor Ions support ~09:00 UT 23-Sep-1997 (C1-C2-C3-EIT synoptic; Minor Ions) NRT test of W. Limb FeX scan for S. Plunkett 22-Sep-1997 (C1-C2-C3-EIT synoptic; Minor Ions) 21-Sep-1997 (C1-C2-C3-EIT synoptic; Minor Ions) 20-Sep-1997 (C1-C2-C3-EIT synoptic; Minor Ions) 19-Sep-1997 (C1-C2-C3-EIT synoptic; Minor Ions) 18-Sep-1997 (C1-C2-C3-EIT synoptic; Minor Ions) 17-Sep-1997 (C1-C2-C3-EIT synoptic; Minor Ions) Minor Ions JOP support: FeX North polar plumes Line Profiles (3 periods of ~90 minutes each, 15:20-23:15 UT, nominally one period of support in subsequent days) 16-Sep-1997 (C1-C2-C3-EIT synoptic; Minor Ions; SOHO-28; SOHO-29) D. Biesecker discovers Comet SOHO-28 in 15 September 1997 C2/C3 data S. Stezelberger discovers Comet SOHO-29 in 16 September C3 data Minor Ions JOP support NRT testing of EIT H-Compress options 15-Sep-1997 (C1-C2-C3-EIT synoptic; Minor Ions support; LEB/LADS anomaly) UVCS Minor Ions JOP support (FeX N. polar plumes) 22:20-23:50 UT During NRT commanding, Alerts indicated: "Timeout - sending msgs to TCE" ~120x during a normal C2/EIT exposure (resulting images appeared nominal) 14-Sep-1997 (C1-C2-C3-EIT synoptic; TM submode 5; l_set_lobt; LEB error) TM Submode 6-to-5 transition 16:31 UT realtime FP Check-and-Correct failed (unusual incident) LEB skipped or postponed numerous exposures 19:00-19:54 UT l_set_lobt executed 19:58 UT 13-Sep-1997 (C1-C2-C3-EIT synoptic; TM Submode 6) 12-Sep-1997 (C1-C2-C3-EIT synoptic; TM Submode 6) 11-Sep-1997 (C1-C2-C3-EIT synoptic; TM Submode 6) 10-Sep-1997 (C1-C2-C3-EIT synoptic; TM Submode 6) 09-Sep-1997 (C1-C2-C3-EIT synoptic; TM Submode 6; Memory Dump; SOHO-27) 14:12 UT OBE Memory Dump executed after scenario load (to help diagnose LEB errors) Kreutz Comet SOHO-27 discovered in 08 Sept. 1997 data by D. Biesecker (on or about this date) 08-Sep-1997 (C1-C2-C3-EIT synoptic; TM Submode 6; JOP068; LEB error) TM Submode 5-to-6 transition 13:37 UT JOP068 support (C2, C3) 15:30-21:30 UT LEB "skipped" FeXIV observation at 14:40 UT; executed it at 15:01 (accompanied by single "Time Calc Error" in Alerts) 07-Sep-1997 (C1-C2-C3-EIT synoptic; JOP068) JOP068 support (C1, C2) 18:30 UT to 00:30 08 Sept. 1997 06-Sep-1997 (C1-C2-C3-EIT synoptic; JOP068; New Sum Img OS; LEB ERROR) JOP068 support (EIT, C1) 15:30-21:30 UT New Sum Img Sequence added to Synoptic Plan: 8-summed FeX and FeXIV images, dpt1, 768x640 unbinned, online and offline (total 4 images, once per day) (This replaces earlier dpt3 FeXIV 4 Sum Img sequence) LEB postponed all C1 observations 23:20-00:00 07 Sept. 1997 (accompanied by single "Time Calc Error" in Alerts) 05-Sep-1997 (LASCO doors opened; l_set_lobt; synoptics resumed) l_set_lobt executed ~22:32 UT All 3 LASCO doors re-opened 22:38-22:48 UT 04-Sep-1997 (LASCO doors closed; Momentum management) C1 door-closed calibrations executed ~2 kg. hydrazine consumed in momentum activities 03-Sep-1997 (45 deg. and 90 deg. roll; LASCO doors closed) 45 deg. roll calibrations began ~09:19 UT 90 deg. roll calibrations began ~11:03 UT All 3 coronagraph aperture doors closed 20:07-20:20 UT 02-Sep-1997 (C1-C2-C3-EIT synoptic; LASCO doors opened) All 3 coronagraph aperture doors re-opened 17:55-18:18 UT 01-Sep-1997 Momentum Management LASCO doors closed, C1 performing closed door calibrations on FeX Polar Plumes campaign. C1 performing closed door line scan sequences in all filter positions to calibrate with upcoming 90 degree roll program and Alpha-Leo campaign. EIT normal synoptic, including a 17 min. cadence with CME watch and microjets campaign.