LASCO/EIT Operations Status Daily Reports -- April 2000 ----------------------------- C2-C3-EIT synoptic = EIT 195A 12 minute; C2 20 minute; C3 30 min cadence C2-C3 Daily Polarizer Sequences in Orange Filter Weekly, Dark Cal Images (Sat) C1,C2,C3 at 0 and 60 Sec, EIT at 0 and 3 sec. (Sat) C2,C3 Blue Polarizer Sequence, (Sun) C2,C3 Deep Red Polarizer Sequence (Sat) C2,C3 Color Sequence Images, 2x2 binned (03:00 UT) ------------------------------------------------------------------------------- 30-Apr-2000 (C2-C3-EIT synoptic) Colors; TM Submode 6 Weekly C2,C3 blue filter polarizer sequence taken. 11:00-12:00 UT EIT Sunspot Study (#6441) with TRACE. 171A at 1 minute cadence. 29-Apr-2000 (C2-C3-EIT synoptic) Darks,Cals,Colors; TM Submode 6 00:00-01:00 UT EIT Sunspot Study (#6441) with TRACE. 171A at 1 minute cadence. Weekly C1,C2,C3,EIT dark images taken. Weekly EIT calibration lamps x2 taken. Weekly C2,C3 color sequence taken. Weekly C2,C3 blue filter polarizer sequence taken. 28-Apr-2000 (C2-C3-EIT synoptic) SOHO-111; TM Submode 6 SOHO-111 Kreutz Sungrazing Comet discovered by T. Lovejoy. Bright comet with visible tail seen in C3 data from 04/28 12:18 UT to 4/29 23:42 UT and C2 data from 4/29 18:06 UT to 4/30 02:30 UT. This is considered to be one of the 4 brightest comet discoveries by SOHO. 27-Apr-2000 (C2-C3-EIT synoptic) Jupiter; TM Submode 6 08:18 UT Planet Jupiter enters C3 field in East. 26-Apr-2000 (C2-C3-EIT synoptic) ICAL 001; TM Submode 6 15:00-16:30 UT EIT Intercalibration 001(#6387) with CDS only. 25-Apr-2000 (C2-C3-EIT synoptic) TM Submode 6 24-Apr-2000 (C2-C3-EIT synoptic) TM Submode 6 17:47 UT uplinked l_set_lobt (set Lasco time) 23-Apr-2000 (C2-C3-EIT synoptic) Colors; TM Submode 6 Weekly C2,C3 deep red filter polarizer sequence taken. Happy Easter from the LASCO Ops Team!! 22-Apr-2000 (C2-C3-EIT synoptic) Darks,Cals,Colors; JOP 83; SM6 Weekly C1,C2,C3,EIT dark images taken. Weekly EIT calibration lamps x2 taken. Weekly C2,C3 color sequence taken. Weekly C2,C3 blue filter polarizer sequence taken. 10:00-11:00 UT EIT in JOP83 Coronal Loops(#6365). 195A 5x5 block at a 60 second cadence; LP=25 21-Apr-2000 (C2-C3-EIT synoptic) JOP 83; TM Submode 6 02:00-03:00 UT EIT in JOP83 Coronal Loops(#6365). 195A 5x5 block at a 60 second cadence; LP=25 20-Apr-2000 (C2-C3-EIT synoptic) JOP 83; TM Submode 6 02:00-03:00 UT EIT in JOP83 Coronal Loops(#6365). 195A 5x5 block at a 60 second cadence; LP=25 18:41 UT uplinked l_set_lobt (set Lasco time) 19-Apr-2000 (C2-C3-EIT synoptic) JOP 83; TM Submode 6 14:00-15:00 UT EIT in JOP83 Coronal Loops(#6365). 195A 5x5 block at a 60 second cadence; LP=25 18-Apr-2000 (C2-C3-EIT synoptic) JOP 83; TM Submode 6 20:00-21:00 UT EIT in JOP83 Coronal Loops(#6365). 195A 5x5 block at a 60 second cadence; LP=25 21:40 UT uplinked l_set_lobt (set Lasco time) 17-Apr-2000 (C2-C3-EIT synoptic) JOP 83; TM Submode 6 10:00-11:00 UT EIT in JOP83 Coronal Loops(#6365). 195A 5x5 block at a 60 second cadence; LP=25 11:00 UT EIT FFFres 195A image with shutter shadow. 16:00 UT begins ALL EIT images long pulse set to 2.5 seconds (25 units) 16-Apr-2000 (C2-C3-EIT synoptic) Colors; JOP 83; TM Submode 6 Weekly C2,C3 deep red filter polarizer sequence taken. 20:00-21:00 UT EIT in JOP83 Coronal Loops(#6365). 195A 5x5 block at a 60 second cadence; LP=25 22:10 UT uplinked l_set_lobt (set Lasco time) 15-Apr-2000 (C2-C3-EIT synoptic) Darks,Cals,Colors; JOP 83; SM6 Weekly C1,C2,C3,EIT dark images taken. Weekly EIT calibration lamps x2 taken. Weekly C2,C3 color sequence taken. Weekly C2,C3 blue filter polarizer sequence taken. 15:00-16:00 UT EIT in JOP83 Coronal Loops(#6365). 195A 5x5 block at a 60 second cadence; LP=25 14-Apr-2000 (C2-C3-EIT synoptic) TM Submode 6 13-Apr-2000 (C2-C3-EIT synoptic) TM Submode 6 22:33 UT uplinked l_set_lobt (set Lasco time) C2, C3 binned images in blue,orange filters for upcoming MERCURY observations; twice per day at 10:00 and 21:00 UT for flat fields. Continues till June 1, 2000. 12-Apr-2000 (C2-C3-EIT synoptic) TM Submode 6 15:09 UT uplinked l_set_lobt (set Lasco time) 18:40-19:40 UT EIT shutter shadow test #2 5x5 block 195A sequence at 60 sec cadence. Using long pulse at 25 units. Successful 11-Apr-2000 (C2-C3-EIT synoptic) JOP 83; TM Submode 6 16:30-17:30 UT EIT JOP83 Coronal Loops(#6365) 195A 5x5 block at a 60 second cadence. Long pulse increased to 25 units (2.5 seconds) to eliminate shutter shadow in images. Successful, high cadence programs require increased long pulse settings. 17:39 UT uplinked l_set_lobt (set Lasco time) 10-Apr-2000 (C2-C3-EIT synoptic) Colors; JOP 83; TM Submode 6 10:30-11:30 UT EIT in JOP83 Coronal Loops(#6365). 195A 5x5 block at a 75 second cadence. 09-Apr-2000 (C2-C3-EIT synoptic) Colors; JOP 83; TM Submode 6 Weekly C2,C3 deep red filter polarizer sequence taken. 14:30-15:30 UT EIT in JOP83 Coronal Loops(#6365). 195A 5x5 block at a 70 second cadence. 08-Apr-2000 (C2-C3-EIT synoptic) Darks,Cals,Colors; JOP 83; TM Submode 6 Weekly C1,C2,C3,EIT dark images taken. Weekly EIT calibration lamps x2 taken. Weekly C2,C3 color sequence taken. Weekly C2,C3 blue filter polarizer sequence taken. 12:00-13:00 UT EIT in JOP83 Coronal Loops(#6365). 195A 5x5 block at a 70 second cadence. 07-Apr-2000 (C2-C3-EIT synoptic) TM Submode 6 20:26 UT uplinked l_set_lobt (set Lasco time) 06-Apr-2000 (C2-C3-EIT synoptic) C2 pB Campaign; JOP 83; TM Submode 6 17:00-18:00 UT EIT JOP 83 Coronal Loops (#6365) 195A 5x5 block at 60 second cadence. 20:05 UT uplinked l_set_lobt (set Lasco time) 18:30-21:15 UT C2/UVCS White Light Channel Calibration campaign (#6351) C2 orange filter pB using intersum method, 2 runs at 18:30 and 20:54 UT. One run at 19:30 UT using the summing buffer method. 05-Apr-2000 (C2-C3-EIT synoptic) C2 pB Campaign; JOP 83; TM Submode 6 13:30-14:30 UT EIT JOP 83 Coronal Loops (#6365) 195A 5x5 block at 60 second cadence. 20:00 Ut uplinked l_set_lobt (set Lasco time) 20:04-22:15 UT C2/UVCS White Light Channel Calibration campaign (#6351) C2 orange filter pB using summing buffer, 3 runs. Additional pB using intersum method at 23:36, 00:30 and 01:30 UT. 04-Apr-2000 (C2-C3-EIT synoptic) C2 pB Campaign; JOP 118; TM Submode 6 15:30-16:30 UT EIT JOP 118 test run (#6390) 171A 5x5 block at 45 second cadence. 20:50-22:30 UT C2/UVCS White Light Channel Calibration campaign (#6351) C2 orange filter pB using summing buffer, 2 runs. Additional pB using intersum method at 22:30, 23:30 and 00:10 UT. 21:48 UT uplinked l_set_lobt (set Lasco time) 03-Apr-2000 (C2-C3-EIT synoptic) C2 pB Campaign; TM Submode 6 19:47 UT uplinked l_set_lobt (set Lasco time) 19:50-22:00 UT C2/UVCS White Light Channel Calibration campaign (#6351) C2 orange filter pB using summing buffer, 3 runs. Additional pB using intersum method at 23:30 and 01:30 UT. 02-Apr-2000 (C2-C3-EIT synoptic) Colors; JOP 82; TM Submode 6 Weekly C2,C3 deep red filter polarizer sequence taken. 10:00-11:00 UT EIT in JOP82 Heating of Coronal Loops(#6365). 304A 5x5 block at a 72 second cadence. 01-Apr-2000 (C2-C3-EIT synoptic) Darks,Cals,Colors; JOP 82; TM Submode 6 SOHO-110 Kreutz Sungrazing Comet discovered by J.Shanklin and M.Meyers Fairly bright comet with visible tail seen in C3 data from 03/31 20:18-01:50 UT and C2 data from 03:57-07:31 UT. Weekly C1,C2,C3,EIT dark images taken. Weekly EIT calibration lamps x2 taken. Weekly C2,C3 color sequence taken. Weekly C2,C3 blue filter polarizer sequence taken. 14:00-15:00 UT EIT in JOP82 Heating of Coronal Loops(#6365). 304A 5x5 block at a 72 second cadence.