mlso.daily.2012 --------------- The following is a list of activity as noted by HAO staff in Boulder, where the MLSO data are processed and analyzed. More information concerning observations at MLSO can be found at http://mlso.hao.ucar.edu. Dates are given by calendar day and by year/day-of-year. The MLSO activity report includes: coronal activity seen in the white light coronagraph MLSO/Mk4 and chromospheric activity off-limb and on-disk as observed in Halpha by the MLSO/Coronado instrument and in HeI 10830 by the MLSO/CHIP instrument. NOTE: The activity report for the MLSO instruments refers to the observing day, NOT to the calendar day. The typical observing day at MLSO is from ~1700-1730UT to ~0200UT. ----------------------------------------------------------------------- Key to abbreviations: AR Active Region CME Coronal Mass Ejection PA Position angle (measured counterclockwise from north pole. e.g., east equator = 90 degrees, west equator = 270 degrees) R Solar radius: e.g., 0.9R is 0.9 solar radii from sun center projected onto the plane of the sky. UT Universal time ----------------------------------------------------------------------- 2012-01-01 2012d001 Mk4 No Data; CHIP No Data. No observations at MLSO today. 2012-01-02 2012d002 Mk4 17:52-00:49; CHIP 17:45-00:51. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Small active prominence in the N-NE and N-NW. Disk: Large AR in the S. Several curved filaments in the N, NW, and SE. Apparent eruption in the N at 1819-1904UT 2012-01-03 2012d003 Mk4 17:58-21:05; CHIP 18:04-21:55. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Active prominence system in the E. Small eruption or surge from behind the limb at 2339-2349UT noticeable in GONG. Smaller prominences in the W and N-NW Disk: Large AR in the S-SW. Several thick, active filaments in the N, NW, and SE. 2012-01-04 2012d004 Mk4 17:53-02:26; CHIP 17:51-02:24. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Very large and tall, very active prominence systems in the E-NE and E-SE. The prominence in the E-NE has multiple large dark bubble at its base. Smaller prominences in the W and NW. Disk: Large ARs in the N-NE, NW, and S-SW Long curved, very active filament in the SE. Thick filaments in the NE and NW. 2012-01-05 2012d005 Mk4 17:53-02:11; CHIP 17:45-02:19. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Very active prominence systems in the E-NE and E-SE. The prominence in the E-NE has one dark bubble at its base. Smaller prominences in the W-NW. Disk: Large ARs in the N-NE, NW, and S-SW Thick, curved filaments in the NE, N, and SE. 2012-01-06 2012d006 Mk4 17:57-00:43; CHIP 17:58-23:52. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Small prominences in the N-NE and NE, correspond to coronal cavities. Very faint, large loop in the SE. Disk: Large, active AR in the NE with spot, another large AR complex in the SW. Several very thick, moderately active, filaments on the Sun today; NE, N, NW, and S. 2012-01-07 2012d007 Mk4 17:53-02:16; CHIP 17:40-01:57. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Large, active prominences in the W and NW. Small prominences in the N-NE, NE, and SE, correspond to coronal cavities. Prominence eruption in the SW at 1740-1812UT. Disk: Large AR complexes in the NE, NW, and SW. Long, curved, thick, active filament in the NE. Moderately active, filaments in the N, W, and S. 2012-01-08 2012d008 Mk4 17:45-00:11; CHIP 17:45-00:56. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Active prominences in the SE and NW. Large active prominence system in the W-NW. Disk: Large AR complexes in the NE, N, NW, and SW. Thick, active filaments in the NE with barbs. 2012-01-09 2012d009 Mk4 18:11-02:17; CHIP 17:46-02:20. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Very large, active hedgerow prominence system in the W, has two large dark bubbles at its base. Tall, thin prominence in the SE. Disk: Filament activity and eruption at about 1942-2000UT within the AR in the NE, near the limb, followed by an Halpha flare at 2003-2027UT. ARs in the N and NW are very large but relatively quiet. Large, very thick active filament with very prominent barbs in the NE, near the limb. Curved active filament in the N-NE. 2012-01-10 2012d010 Mk4 18:01-00:07; CHIP 18:02-00:07. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Large, very active but faint prominences in the SE, show fast motions. Low-lying active prominences in the NE and W. Disk: Large ARs in the NE, N, and NW all show some activity. Large, active, very thick filament with very prominent barbs in the NE. Curved active filament in the N. 2012-01-11 2012d011 Mk4 17:53-02:26; CHIP 17:50-02:26. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Very long, very active, relatively low-lying prominence system in the E-NE, has several dark bubbles at its base. Fainter, very active prominences in the SE. Disk: Large ARs in the NE and NW are very active. Compact Halpha flare within the AR in NE at 0050-0125UT, is accompanied by filament activity. Some brightening and filament activity also within the AR complex in the NW. Very large, very thick, but modestly active filament in the N-NE. with very prominent barbs. Smaller, dark filament in the N, near central meridian. 2012-01-12 2012d012 Mk4 No Data; CHIP No Data. No observations at MLSO today. 2012-01-13 2012d013 Mk4 18:00-00:50; CHIP 17:59-00:48. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Large but faint, arched prominences in the SE and SW. The prominence in the SE is very active. Disk: Large AR complexes in the N. Large, moderately active, very thick filament near the NE limb. Long, very active filaments in the NW. 2012-01-14 2012d014 Mk4 18:16-22:46; CHIP 18:15-20:09. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Prominence noticeable in the SW above the occulter. Limb : Tall, large, but faint active prominence in the SW, shows strong quasi-vertical flows. Faint active prominences in the NE and S-SE. Surging in the E, from AR behind the limb. Disk: Several AR complexes in the N and SE. Large, active, very thick filament in the NE. Long, very active filaments in the NW. Filament eruption from small AR near the SE limb at 2011-2037UT. 2012-01-15 2012d015 Mk4 21:17-23:29; CHIP 17:53-23:06. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Limb surging in the NE from ARs. Disk: AR complexes in the N-NW, and SE. Very large AR complexes in the NE, very near the limb, show continual surging. Long very active filament(s) in the NE-SE. Thick filaments in the N. Large, very thick, active filaments in the NW 2012-01-16 2012d016 Mk4 17:55-01:22; CHIP 17:39-01:22. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Coronal cavity in the NE noticeable in Mk4 and CoMP. Limb: Large, long, very active prominence system in the W-NW. Smaller prominence in the E-NE. Some limb surging in the NE from ARs. Disk: Two large AR complexes with large spots near the NE limb, show surging/brightening. The two ARs form a nice active longitude example (they are almost at the same longitude but about 10deg latitude apart) Long, active filament(s) in the NE-SE. Smaller, thick, very active filaments in the N-NW. 2012-01-17 2012d017 Mk4 No Data; CHIP 19:27-20:32. Corona: Cloudy. No coronal observations today. Limb: Huge, very tall, arched prominence system in the W-NW is extremely active, shows complex motions along its spine, mostly parallel to the limb, has large dark bubbles at its base. Smaller active prominences in the NE and E. Disk: Two large AR complexes with large spots in the NE show surging/brightening. The two ARs form a nice active longitude example (they are almost at the same longitude but about 10deg latitude apart) Curved active filaments in the N and S. Thick, active filaments in the NW. 2012-01-18 2012d018 Mk4: 21:03-23:11 CHIP 18:16-02:13 Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Active prominences in the E and SE. Disk: Two large AR complexes with large spots in the NE show continual activity. Halpha flare at about 1906-1956UT in the southern AR. Small Halpha brightening/flare in the NW at about 2300-2342UT. Large, thick, curved filament in the N, near central meridian. Smaller filaments int the NE ans SE. 2012-01-19 2012d019 Mk4 18:20-00:49 CHIP 17:45-02;16 Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Large active prominence in the SE. Disk: Very large AR complexes in the N-NE, show minor brightening. Thick, curved, active filament in the N. Smaller, thick, filament in the SW. 2012-01-20 2012d020 Mk4 18:00-02:38 CHIP 17:53-02:32 Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Large, active prominence in the SE. Small prominence eruption from behind the limb in the E-SE at about 2124-2200UT noticeable in Halpha and HeI. Disk: Very large AR complexes in the N Large, thick, curved, modestly active filament in the NW. 2012-01-21 2012d021 Mk4 17:55-02:09 CHIP 17:46-02:15 Corona: No noticeable coronal activity in uncalibrated Mk4 data. Possible coronal cavity in the N-NW Limb: Moderately active prominences in the SE (also seen on-disk) and in the SW. Surging from behind the limb in the W-NW. Disk: Very large AR complexes in the NW, are very active, large Halpha flare at 0234-0310UT noticeable in GONG. Large, tall, thick active filament in the NW has a curved shape. 2012-01-22 2012d022 Mk4 18:00-00:59; CHIP 18:00-22:52. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Large, active, hedgerow prominence in the E, has a dark bubble at its base. Disk: Large AR complexes in the NW are very active, shows continual brightening, flaring and surging. GONG Halpha flare in the NW at about 0130-0316UT, peaks around 0300UT. Small filament in the NW, N of large ARs, erupts at about 2225-2245UT Small filaments in the N and SE. 2012-01-23 2012d023 Mk4 17:53-23:36; CHIP 17:45-23:32. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Large, very active hedgerow prominence in the E. There is also prominence material moving along an arched trajectory in the E-NE, may be part of the same prominence system. Disk: Large AR complexes in the NW shows continual surging and brightening. Small filaments in the N, SE and SW. 2012-01-24 2012d024 Mk4 18:01-23:05; CHIP 22:56-23:15. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Large, tall, active arched prominence in the E-NE. Post-eruption loops in the NW. Limb surging in the SW. Disk: Large AR complexes in the NW, near the limb, show brightening. Thick filament in the E, near the limb, was seen as a large prominence yesterday Very active filament in the SW, very near the limb, appears to fade towards the end of the observing day in GONG Halpha. Small filaments in the N and SE. 2012-01-25 2012d025 Mk4 18:02-23:42; CHIP 19:23-00:04. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Tall, active prominence in the NE. Disk: Large AR complexes in the NW, near the limb, show surging and brightening. Smaller ARs in the N are also active. Thick, active filament in the E. Small filament in the S-SE. 2012-01-26 2012d026 Mk4 17:55-23:11; CHIP 17:50-23:12. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Very active prominences in the NE (large and tall) and in the SW (roundish) Strong surging in the NW from ARs and limb/disk eruption at 2040-2130UT. Disk: Large AR complexes in the NW, at (and partly behind) the limb, limb/disk eruption at about 2040-2130UT Active filaments with noticeable barbs in the E and S. 2012-01-27 2012d027 Mk4 19:17-00:05; CHIP 18:35-22:00. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Limb activity in the NW at the location of the large ARs. Halpha flare very near the limb, seen off-limb as large bright loop-system at about 1844-2300UT, also noticeable in HeI. Disk: AR in the E-NE near the limb with spots. Halpha flare very near/at the limb at 1812-1915UT. Large, moderately active filaments in the E-NE and S with barbs. Other faint filaments N ans S. 2012-01-28 2012d028 Mk4 17:56-02:13; CHIP 17:44-02:21. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Low-lying prominence system in the NE. Tall, relatively faint prominence in the N-NE, has a dark bubble at its base. Disk: AR complex in the E-NE with spot. Large, thick, modestly active filaments in the N and SW. Very faint filament in the SE appears to slowly fade during the course of the observing day. 2012-01-29 2012d029 Mk4 17:58-00:22; CHIP 17:59-00:20. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Moderately active prominences in the N-NE and NE. Very active prominence system in the W, shows strong surging. Disk: AR complex in the NE with spot. Large, thick, modestly active filaments in the N and SW. 2012-01-30 2012d030 Mk4 18:42-02:24; CHIP 18:42-02:24. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Small prominences in the NE and W-NW. Disk: AR complex in the NE with spot. Large, thick, active filaments in the N-NW with barbs. Another thick, active filament near the SW limb. Nice, elongated, trans-equatorial coronal holes just E of central meridian noticeable in CHIP HeI observations 2012-01-31 2012d031 Mk4 18:04-01:34; CHIP 18:08-01:28. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Small prominences in the NE, W-NW, and N No significant limb activity. Disk: AR complex in the NE with spot. Large, sparsely filled, active filaments in the NW. Smaller filaments in the N and S. Nice, elongated, trans-equatorial coronal holes at central meridian noticeable in CHIP HeI observations 2012-02-01 2012d032 Mk4 No Data; CHIP 17:38-02:41. Corona: No coronal observations today. Limb: No significant limb activity. Small prominences in the NE and N. Disk: AR complex in the N, near central meridian. Large, sparsely filled, active filaments in the NW. Smaller filaments in the NE, N, S and SW. Nice, elongated, trans-equatorial coronal holes just W of central meridian noticeable in CHIP HeI observations 2012-02-02 2012d033 Mk4 17:53-02:14; CHIP 17:43-02:13. Corona: No noticeable coronal activity in uncalibrated Mk4 data. One image has an artifact that looks like a CME but does not appear to be a real CME. Limb: Small active prominences in the N-NW. Disk: Large ARs in the N-NW with spots. Several, long filaments in the NE and in the N, near the ARs. 2012-02-03 2012d034 Mk4 17:50-02:04; CHIP 17:43-01:52. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Small prominences in the E. SE, SW, and N-NW. Disk: ARs in the N-NW with spots. Three very long filaments in the N-NE are modestly active. An extremely active filaments in the N, near the ARs. 2012-02-04 2012d035 Mk4 17:52-02:14; CHIP 17:36-02:12. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Small active prominences in the NE, SE, SW, W, and N-NW. Disk: ARs in the NW with spots. Three very long filaments in the N-NE, the one closest to central meridian slowly fades around 19200-0048UT, slow eruption. 2012-02-05 2012d036 Mk4 18:06-01:02; CHIP 18:00-00:54 Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Active prominence/filament in the SW seems to partially erupt at about 1900-1955UT. Small prominences in the NE, SE, W, and NW are modestly active. Disk: Large ARs in the NE and NW, near the limb, show surging/brightening. AR in the SW near the limb. Long, modestly active filament in the NE. Very large, slow filament eruption in the N-NE at about 1920-2148UT possibly followed by a very faint 2-ribbon flare 2012-02-06 2012d037 Mk4 17:58-01:14; CHIP 17:20-01:04. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Active prominence in the E-NE shows bright material moving along an arched trajectory. Very small prominences in the SE and NW. Disk: Large AR near the NW limb is very active, there is a small filament eruption within this AR complex at 1930-1955UT followed by an Halpha flare at about 1940-2050UT. Long, sparsely filled filaments in the N-NE. Filament in the NW also seen as small prominence off-limb. Filament in the SE also seen as small prominence off-limb. 2012-02-07 2012d038 Mk4 no data ; CHIP no data Corona: No observations at MLSO today. Limb: Large, very active, arched prominence system in the E-NE. Active prominences in the NW seen in GONG. No HeI data. Disk: Long, sparsely filled, filaments in the N and NE, modestly active. Smaller filaments in the SE seen in GONG. No HeI data. 2012-02-08 2012d039 Mk4 18:18-01:24 ; CHIP 17:23-02:14 Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: A lot of limb activity today. Very large, arched, very active prominence system in the E-NE Large arched, very active prominence in the W-NW, shows fast motions. A tall, very active prominence in the N-NW, shows swirling and significant draining of prominence material which makes it fade towards the end of the observing day. Smaller prominences in the SW. Disk: AR in the NW near the limb, Halpha brightening/flaring at about 2150-2230UT Two very long, modestly active filaments in the N. Smaller filaments in the SE. 2012-02-09 2012d040 Mk4 17:48-00:59; CHIP 17:39-00:51. Corona: CME in the NE visible in MK4 at about 2036-2132UT, has a very faint round front and a Bright, cusp-shaped core. CME not visible in CoMP intensity. Coronal cavities in the N-NE and SW noticeable in CoMP. Limb: Large prominence/filament eruption in the E-NE, starts very slowly at about 1915UT, accelerate at about 2000UT, visible until about 2040UT. Nice Halpha eruption, followed by post-eruption loops, faint but visible in HeI. Small bright prominence in the SW. Disk: Small AR plages in the SE and NW are quite active, show surging/brightening. Very long, moderately active, sparsely filled, filament in the N, covers most of the solar disk. Very active filament in the SE. Modestly active filament in the NE. 2012-02-10 2012d041 Mk4 17:57-01:17; CHIP 17:49-01:19. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Coronal cavity in the N-NE noticeable in CoMP. Very faint coronal cavity in the SW in CoMP Limb: Small, bright prominence in the SW. Disk: AR in the S-SE is quite active, appears to be growing. Large filament eruption in the NE visible at about 1855-1925UT, followed by a large 2-ribbon flare at 1906-0119UT. The whole filament erupts, very large event visible in both Halpha and HeI. Very long, filament in the N, covers most of the solar disk. Long, faint polar crown filament in the S. 2012-02-11 2012d042 Mk4 20:21-02:17; CHIP 20:16-02:16. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Small prominences in the N-NE, and SW. Some limb surging in the E. Disk: AR in the SE is relatively small but quite active. Very long, filament in the N-NW. Faint, long filament in the S. 2012-02-12 2012d043 Mk4 18:04-01:05; CHIP 18:04-01:02. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Coronal cavity in the NW, noticeable in Mk4 Limb: Moderately active prominences in the N-NE, E-NE, and SW. Disk: ARs in the NE (near the limb) and S Very long, filament in the N-NW. Faint, long filament in the S. 2012-02-13 2012d044 Mk4 17:56-02:27; CHIP 17:57-02:24. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Two prominences in the N-NE (has a small dark bubble at its base) and in the E-NE. Low-lying prominence system in the W-NW. Disk: Large AR complex in the NE. Smaller AR in the SW with spot. Long, relatively faint filaments in the N-NW (also seen off-limb) and S. 2012-02-14 2012d045 Mk4 17:57-01:23; CHIP 17:58-01:24. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Large active prominences in the N-NE and W-NW. Smaller prominences in the NE and E. Disk: Large AR complexes in the NE and N. There is a small filament eruption and a small flare in the AR in the N at about 1855-1903UT. Smaller AR in the SW with spot. Long polar crown filament in the S. 2012-02-15 2012d046 Mk4 19:54-00:10; CHIP 17:33-01:44. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Active prominence in the W-NW has a dark bubble at its base. Smaller prominences in the NE and SE. Disk: AR complexes in the NE, N, and SW. Many filaments in the N and S, from modestly active to quiet. Long polar crown filament in the S. 2012-02-16 2012d047 Mk4 No Data; CHIP 17:44-00:29. Corona: No Mk4 observations today. Limb: Very active prominence system in the SW. Disk: Large AR complexes in the N, a smaller complex in the SW, near the limb. Many filaments in the N and S. Partial filament eruption in the curved, thick filament near the NE limb at after 0100UT visible in GONG Halpha. Long polar crown filament in the S. Extremely active filament in the S, N of polar crown. 2012-02-17 2012d048 Mk4 No Data; CHIP No Data. No observations at MLSO today. Thick clouds. 2012-02-18 2012d049 Mk4 18:39-19:04; CHIP 17:47-02:22. Weather: Cloudy Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Several small prominences: N-NE, E, SE, SW, and NW, not very active. Disk: AR complexes in the N and SW. One AR in the N shows some activity and Halpha brightening/surging. Many filaments both N and S, modestly active. 2012-02-19 2012d050 Mk4 No Data; CHIP No Data. No observations at MLSO today. Snow. 2012-02-20 2012d051 Mk4 18:37-22:46; CHIP 18:36-23:10. Weather: Cloudy Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Prominence eruption in the SW at 1836-1912UT. A lot of limb activity today: large active prominence in the E-NE. Very large, very active, arched prominences in the SE, appears to slowly rise. Large, very active W-NW, has a dark bubble at its base. Smaller prominences in the SW. Disk: AR complexes in the NE and NW (with spots). Long active filament in the N. Long, thick curved filament in the SE. 2012-02-21 2012d052 Mk4 No Data; CHIP No Data. No observations at MLSO today. Snow. 2012-02-22 2012d053 Mk4 No Data; CHIP No Data. No observations at MLSO today. Cloudy 2012-02-23 2012d054 Mk4 17:51-20:42; CHIP 17:51-20:53. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Moderately active prominences in the NE and SW. Very large and very long, very active, hedgerow prominence system in the SE. Disk: AR complexes in the NW with spots. Very long, active, curved filaments in the NE, NW, and S. The large filament in the NE is very active and shows fast motions along its spine, it erupts early on the next day (but gap in GONG Halpha data. The northernmost part of the filament eruption corresponds to a coronal cavity eruption in SDO. The event is followed by a very large 2-ribbon flare. 2012-02-24 2012d055 Mk4 No Data; CHIP 17:58-21:41. Weather: Cloudy Corona: No coronal observations today. Limb: Prominences visible in the E-SE and SW. Eruption in progress in the SE at the beginning of the observing day: The large prominence in the SE fully erupts 1758-1840UT, visible in GONG Halpha and in HeI. Disk: Large AR complexes in the NE, N, and NW. Long, curved, active filament in the S. Smaller filaments in the N-NW. 2012-02-25 2012d056 Mk4 19:59-19:59; CHIP 18:24-20:30. Weather: Fog and clouds. Corona: No coronal observations today. Limb: Several prominences visible in the SE and SW. Disk: Large AR complexes in the NE and NW. Long, curved, active filament in the S with barbs. Smaller filaments in the NE and NW. 2012-02-26 2012d057 Mk4 No Data; CHIP 18:05-21:35. Weather: Thick clouds. Corona: No coronal observations today. Limb: Modestly active prominences in the SW and NW. Prominence eruption in the NE from behind the limb at about 1950-2025UT, visible in GONG Halpha, visible but faint in HeI. Disk: Large AR complex in the NE. Large filament in the S-SW appears to slowly fade. 2012-02-27 2012d058 Mk4 17:41-22:29; CHIP 17:35-22:31. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Moderately active prominences in the NE, E and NW. Disk: Very large AR complex in the NE. AR in the NW, near the limb. Large filament in the SW. 2012-02-28 2012d059 Mk4 18:02-20:19; CHIP 18:03-23:55. Weather: Some clouds Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Moderately active prominence in the E-NE. Modestly active prominence in the NW. Disk: AR complex with spot in the N. Thick filament in the SW, near/at the limb. 2012-02-29 2012d060 Mk4 No Data; CHIP 19:25-20:40. Weather: Thick clouds. Corona: No coronal observations today. Limb: No good limb observations today. Disk: Large AR complex in the N. 2012-03-01 2012d061 Mk4 18:20-23:31; CHIP 18:17-00:18. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Large, active, hedgerow prominence in the SW. Smaller prominence in the NW. Disk: Very large AR complex in the N shows minor activity. Filament in the NE, near the limb. 2012-03-02 2012d062 Mk4 18:01-21:16; CHIP 18:02-21:41. Weather: Clouds, fog later in the day Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Large, very active prominence in the SW, has two small dark bubbles at its base, there is a jet of material that appears inside the prominence at about 1928UT. Small, brught feature in the E-NE. rises and then fades, possibly a surge/loop from the AR behind the limb. Smaller prominencesin the NW. Disk: Large AR complex in the N-NW. Faint, long, active filament near central meridian. Thick filament near/at the NW limb. 2012-03-03 2012d063 Mk4 No Data; CHIP No Data. No observation at MLSO today. Overcast, foggy. 2012-03-04 2012d064 Mk4 No Data; CHIP 18:02-20:08. Weather: Cloudy and foggy. Corona: No coronal observations today. Limb: No significant limb activity today. Small prominence in the SE. Disk: AR with very large spot in the NE. Large eruption and small flare within the decayed AR complex in the NW at about 1725-1755UT visible in GONG Halpha. 2012-03-05 2012d065 Mk4 17:34-02:31; CHIP 17:36-02:29. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Small prominence in the SE has a dark bubble at its base. Small prominences in the NE, SW, and NW. Disk: Large AR in the NE is very active, shows contnual surging throughout the day Decayed AR complex on the NW shows minor activity. There are two small, curved filaments within this complex. Smaller ARs in the SE. 2012-03-06 2012d066 Mk4 No Data; CHIP No Data. 2012-03-07 2012d067 Mk4 18:42-20:26; CHIP 18:42-20:26. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Large, moderately active prominences in the NE and SE. Faint active prominence in the W-NW Smaller prominences in the NE, SE, SW and NW. Apparent surge in the NE at 2300-2340UT Disk: Very large AR with complex fields in the N-NE shows continual surging. Active filaments in the NW. 2012-03-08 2012d068 Mk4 No Data; CHIP 17:46-21:58. Corona: No coronal observations today. Cloudy. Limb: Large active hedgerow prominence in the SE (with dark bubbles at its base) Low-lying prominences in the NE and SW. Faint prominence eruption in the NW at 1749-1829UT noticeable in HeI. Surging or small eruption in the NW from behind the limb at 2118-2129UT. Disk: Very large AR complex in the N, near central meridian, show minor activity. Several small filaments in the N and S. 2012-03-09 2012d069 Mk4 No Data; CHIP 22:24-01:52. Corona: No coronal observations today. Cloudy. Limb: Large, tall moderately active hedgerow prominence in the SE has two dark bubbles at its base. Small prominence in the SW. Small surging at the E-NE limb. Disk: Very large AR with complex fields in the NW with a large spot, shows continual surging in Halpha. Very long, curved active filament in the NE, extends to the limb. 2012-03-10 2012d070 Mk4 18:54-19:43; CHIP 17:26-21:42. Weather: Partly cloudy Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Low-lying, long prominence in the NE. Tall moderately active prominence in the SE. Smaller prominence in the SW. Small, faint (post-eruption?) loops in the E at about 1924-2020UT noticeable in Halpha and in HeI Disk: Very large AR with large spot in the NW is very active. There is a large/bright 2-ribbon flare in progress at 1728-1900UT in this AR that has several brights kernels noticeable in HeI, very bight in Halpha. Very long, curved active filament in the NE, extends to the limb. 2012-03-11 2012d071 Mk4 No Data; CHIP No Data. No observations at MLSO today. Thick clouds. 2012-03-12 2012d072 Mk4 21:44-21:44; CHIP 17:17-02:22. Corona: No Mk4 observations today. Limb: Many moderately active prominences visible today: NE, E, SW, and NW Disk: AR in the NE. Large active AR complex in the NW shows surging. Very long, active, curved filament in the N. 2012-03-13 2012d073 Mk4 No Data; CHIP No Data. No observations at MLSO today. 2012-03-14 2012d074 Mk4 17:28-03:06; CHIP 17:29-03:03. Corona: CME in the NW at about 0132-0158UT from the large AR now at the limb. I see only what appears the CME core not the CME front. Transient in CoMP at about 0117-0133UT Limb: Small prominences in the N-NE, E, and SW Disk: AR complexes both N and S. The AR in the N near central meridian is particularly active. Large AR 11329 at the W-NW limb is very active and shows strong surging, apparent eruption at about 2255-0030UT, most material falls back. Long, thick, very active filament in the N. 2012-03-15 2012d075 Mk4 17:22-02:22; CHIP 17:13-02:24. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Small prominence in the N-NE. Strong surging in the W-NW from behind the limb at the location of the large AR 11329, now behind the limb. Disk: Small AR complexes near central meridian in the n are quite active. show brightening and flaring at about 2212-2304UT and at 0223-0228UT Long, thick, very active filament in the NW. 2012-03-16 2012d076 Mk4 17:20-03:33; CHIP 17:18-03:30. Corona: CME with round front noticeable in Mk4 in the W-NW at about 1950-2047UT. Another fainter CME at 0138-0240UT also in the W-NW. Limb: Large, arched prominence/filament eruption seen off-limb at about 1901-2025UT in HeI and Halpha, corresponds to Mk4 CME. There is another (sympathetic) large prominence eruption from very near the limb at about 0000-0312UT, corresponds to second Mk4 CME. Small prominences in the N-NE and SE. Disk: Several ARs both N and S. Large filament/prominence eruption in the NW at the beginning of the observing day at about 1807-2047UT, is followed by a large 2-ribbon flare very visible in HeI at 2001-0330UT (but faint in Halpha) There is another (sympathetic) filament eruption in the NW starting at about 2329UT 2012-03-17 2012d077 Mk4 17:35-02:13; CHIP 17:35-02:24. Corona: Nice 3-part structure CME in the NW noticeable in MK4 at about 2351-0023UT Transient in CoMP at about 2320-2330UT. Limb: Fast prominence eruption from behind the limb at about 0022-0030UT seen by GONG Disk: Several small ARs both N and S. Filaments in the N-NW. 2012-03-18 2012d078 Mk4 17:29-01:14; CHIP 17:30-01:12. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Arched, very active prominence in the SE. Smaller prominence in the SW Disk: Small ARs both NW and SW. Filaments in the N-NW. 2012-03-19 2012d079 Mk4 17:21-22:56; CHIP 17:21-23:23. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Arched, tall, very active prominence in the SE. Disk: AR complexes in the NW and SW show minor activity. Active filaments in the W and NW. 2012-03-20 2012d080 Mk4 17:36-22:38; CHIP 17:37-22:39 Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Arched, very tall, very active prominence in the SE. Small prominence in the SW, correspond to coronal cavity. Faint eruption at the W limb 2100-2200UT, Disk: AR complexes in the SE, NW and SW, all near the limb. faint active filament in the W near the limb, appears to erupt at about 2100-2200UT, faint event noticeable in both GONG Halpha and HeI. 2012-03-21 2012d081 Mk4 17:17-21:00; CHIP 17:17-22:31 Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Very tall, very active prominence in the SE. Smaller prominences in the NE and SW corresponds to coronal cavities. Disk: ARs in the SE, SW, NW, all near the limb. Thick, modestly active filaments in the NW, near the limb. 2012-03-22 2012d082 Mk4 No Data; CHIP No Data. No observations at MLSO today. Fog. 2012-03-23 2012d083 Mk4 17:13-20:18; CHIP 17:06-21:59. Corona: CME in the NW visible in Mk4 at about 1910-1927UT Limb: Large, arched prominence eruption in the NW visible in GONG Halpha and HeI at about 1650-1842UT. Disk: Small ARs in the N show modest surging. Small filaments in the NE. 2012-03-24 2012d084 Mk4 No Data; CHIP No Data. No observations at MLSO today. Rain. 2012-03-25 2012d085 Mk4 No Data; CHIP No Data. No observations at MLSO today. Fog. 2012-03-26 2012d086 Mk4 17:15-20:33; CHIP 16:55-20:29. Corona: No Mk4 data available yet. Limb: Hedgerow prominence system in the E-NE. Prominence in the W. Disk: AR in the N and SE. Several filaments in the NE and NW modestly active 2012-03-27 2012d087 Mk4 17:26-01:11; CHIP 17:31-01:11. Corona: Very faint CME in the SW at about 2139-2202UT noticeable in Mk4 and also seen in CoMP. Possible faint CME/outflow in the NE at about 0015-0020UT noticeable in Mk4 and CoMP. Limb: Very large, very active prominence system in the NE, shows fast complex motions mostly parallel to the Sun's surface (possible counter-streaming). Smaller prominences in the W and NW. Disk: ARs in the N, SE, S-SE, and S-SW (very active). Long, curved filament/filament channel in the N. 2012-03-28 2012d088 Mk4 18:35-02:40; CHIP 17:03-02:37. Corona: Very faint CME in the NE at about 2154-2208UT Limb: Large active prominence system in the NE Low-lying prominences in the W and NW. Disk: Several AR complexes in the N-NW, SE, S, and SW show minor activity. Halpha flare just N of the decayed AR in the N-NW, at about 2144-2216UT, also seen in HeI, is preceded by some brightening in the AR in the SW. Long curved filament/filament channel in the N. Modestly active filament in the NE. Two other filaments in the NW and SW. 2012-03-29 2012d089 Mk4 17:19-02:19; CHIP 17:15-02:23. Corona: No noticeable coronal activity. Limb: Modestly active, prominence systems in the NE and SW. Surging in the E-NE from AR at/behind the limb. Disk: Several ARs in the S and one decayed AR in the NW. Fast filament eruption in the decayed AR in the NW at about 2315-2335UT. Filament eruption in the N at about 2353-0135UT with rotation of the erupting filament. Both are seen in Halpha and HeI. Large filaments in the NE and SW, also seen as prominences off-limb. 2012-03-30 2012d090 Mk4 17:19-02:20; CHIP 17:19-02:15. Corona: No noticeable coronal activity. Limb: Very active, fairly tall, prominence in the SW. Modestly active, relatively low-lying prominences in the W, and NW Disk: Several ARs in the S and one decayed AR in the NW. Long, active filaments in the NE and SW 2012-03-31 2012d091 Mk4 17:16-02:20; CHIP 17:18-02:18. Corona: No noticeable coronal activity. Limb: Active prominence in the SW. Surging off the w limb. Disk: AR plages in the SW, NE and W-NW. Small brightening and large surge from the AR near the W-NW limb at about 21102-2130UT, also seen off-limb as a tall, fast surge in both Halpha and HeI. Long filaments in the NE and SW 2012-04-01 2012d092 Mk4 17:25-21:55; CHIP 17:26-21:56. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Several small, moderately active prominences: NE, SE, SW, and N-NW. Limb surging off the SW limb. Disk: Large AR complexes in the NE (quite active), NW, and SW. Thick but faint filament near/at the SW limb. 2012-04-02 2012d093 Mk4 17:11-22:19; CHIP 17:11-22:22. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Nice coronal cavity noticeable in CoMP in the SE. Limb: Active prominence in the SW. Several small, moderately active prominences: NE, SE, NW, and N-NW. Disk: Large AR complexes in the NE (quite active), NW, and SW. Thick filament near/at the SW limb, also seen off-limb. Very active, small filament in the NW within large AR complex, show fast motions. 2012-04-03 2012d094 Mk4 17:19-18:56; CHIP 17:20-22:00. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Large and tall active prominence in the SW has a dark bubble at its base. Several small prominences in the NW Disk: Large AR complex in the NE. Active AR filament in the NE appears longer but less active today. 2012-04-04 2012d095 Mk4 17:06-22:25; CHIP 16:54-22:26. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Active prominences in the SW and NW. Disk: Very large Ar complex in the N host two long, thin active filaments. 2012-04-05 2012d096 Mk4 No Data; CHIP 18:42-21:54. Corona: No coronal observations. Limb: No significant limb activity today. Several small prominences in the W-SW. Disk: Very large AR complex in the N host two active filaments, the smaller of them erupts at about 2016-20057UT, the event is followed by a small Halpha brightening. 2012-04-06 2012d097 Mk4 17:11-20:38; CHIP 17:08-21:21. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Several small prominences in the E, SE, SW, and W. Disk: Large AR complex in the NW. ARs in the NE and SE. Very active, long, curved AR filament in the NW. Small curved filament near the NE limb. Several relatively faint filaments in the SW. 2012-04-07 2012d098 Mk4 No Data; CHIP 17:11-02:22. Corona: No coronal observations. Limb: Active large hedgerow prominence in the SE has some dark bubbles at its base. Several small prominences in the E, SW, and W. Disk: Large AR complex in the NW. ARs in the NE and SE. Very large AR filament eruption in progress the NW at about 1711-1927UT Moderately active, curved filament in the NE. Several relatively faint filaments in the SW. 2012-04-08 2012d099 Mk4 No Data; CHIP No Data. No observations at MLSO today. Thick clouds. 2012-04-09 2012d100 Mk4 17:19-22:15; CHIP 16:43-22:31. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Low-lying, modestly active prominence in the W-SW. Disk: ARs in the SE and NW, near the limb. Moderately active, curved filament in the N-NE. Filament in the NW seems to have reformed. 2012-04-10 2012d101 Mk4 17:21-22:46; CHIP 18:24-23:15. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Tall modestly active prominence in the N-NW. Small active prominence in the N-NE, low-lying active prominence in the W-SW. Surging in the NW. Disk: AR plages at the SE limb and W limb. Relatively small, very active filaments in the N and SE, both show motions along the filament spine 2012-04-11 2012d102 Mk4 17:01-22:11; CHIP 17:00-22:08. Corona: Relatively faint CME with bright round front and bright core in the NW noticeable in Mk4 at about 2045-2120UT. Faint motion noticeable in CoMP intensity at the location of the CME. Limb: Very tall but very faint prominence in the N-NW. Some limb activity in the NW, likely corresponds to white-light CME. Disk: AR plages in the SE. AR at the W limb Very active filaments in the N, NE, S, and SE 2012-04-12 2012d103 Mk4 17:28-22:01; CHIP 17:27-22:37. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Active prominences in the SW (also seen as filament) and NW. Disk: AR in the N is small but growing. Several active filaments on the Sun today: a curved filament in the N, a thin filament in the NE, and two long filaments with barbs in the SE and SW. 2012-04-13 2012d104 Mk4 17:00-21:07; CHIP 16:42-21:50. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Large, tall, very active prominence in the NW. Very active prominence in the SW. Disk: AR in the N near disk center. AR plage in the SW. Several active filaments on the Sun today: a curved filament in the NW, a thin, long filament in the NE, and a long filament with barbs in the S-SE. 2012-04-14 2012d105 Mk4 No Data; CHIP No Data. No observations at MLSO today. 2012-04-15 2012d106 Mk4 17:10-18:44; CHIP 17:10-23:15. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Coronal cavity in the SW noticeable in Mk4 and CoMP. Limb: Very large, very tall, active prominence system in the W-NW. Very large, very tall, complex, active prominence in the SW Active ached prominence in, the NE. Long, active, low-lying prominence in the SE. Strong surging off the E limb, from behind the limb. Disk: Small AR in the NW. AR plages in the SW, near the limb. Long and very active filaments in the N-NW and S-SW. 2012-04-16 2012d107 Mk4 18:18-02:20; CHIP 16:28-02:19. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Round coronal cavity in the SW noticeable in Mk4 and CoMP. Limb: Very large, active prominence in the SW, corresponds to coronal cavity. Very large, active arched prominence in the SE, is seen to slowly rise throughout day, slow eruption towards the end of the day after 2300UT. Huge surge, AR eruption, in the E from AR near/behind the limb at about 1725-1749UT, a lot of material falls back, seen in both GONG Halpha and HeI. Prominence eruption in the NE at about 2100-2300UT (sympathetic eruption?) Disk: AR plages in the NE, SE and NW. Large and thick, active filaments in the SW and NW. Small but very active filament in the SE. Curved filament in the SE, very near the limb. 2012-04-17 2012d108 Mk4 18:22-20:57; CHIP 17:04-01:05. Corona: No Mk4 data available yet. Round coronal cavity in the SW noticeable in CoMP. Limb: Large, active prominences in the SW and NW. Disk: Large and thick, active filaments in the SW and NW. Curved AR filament in the SE. 2012-04-18 2012d109 Mk4 21:11-22:52; CHIP 17:02-22:51. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Coronal cavity in the SW noticeable in Mk4. Limb: Prominence in the SW corresponds to coronal cavity. Small prominences in the NE and NW. Disk: AR plages in the NE, SE, and SW. Large and thick, active filaments in the SW and NW. Curved AR filament in the SE. 2012-04-19 2012d110 Mk4 17:17-00:10; CHIP 16:43-02:18. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Dark coronal cavity in the SW noticeable in CoMP Limb: Large active prominences in the SW and NW also seen as filaments on-disk. Surging in the W from behind the limb. Disk: AR plages in the NE, N, S, and SW. The ARs in the N and SW are particularly active and show brightening/flaring throughout the day. Large and thick, active filaments in the SW and NW, near/at the limb. Curved AR filament in the S-SE. 2012-04-20 2012d111 Mk4 16:48-23:34; CHIP 16:47-00:28. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Coronal cavity in the SW noticeable in CoMP Limb: Very large, thick, active prominence in the SW, partly seen on-disk Disk: AR plages in the N-NW, S, and SW are quite active. 2012-04-21 2012d112 Mk4 16:57-23:19; CHIP 16:43-01:48. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Large, dense, arched prominence in the SW limb. Smaller prominence in the SE. Disk: Many ARs on the Sun today NE, NW, S, and SW, all active, show continuous flaring/surging. Long filament in the N, curved filament in the SE. Large AR filaments N and S. 2012-04-22 2012d113 Mk4 17:09-01:23; CHIP 17:10-01:18. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Tall, active prominence in the N-NW. Smaller active prominences in the E-NE, SE, and SW. Disk: Many ARs on the Sun today NE, N, NW, S, and SW, all active, show continuous flaring/surging. AR in the S-SE is particularly active. Long but faint filament in the N, curved filament in the SE. Large AR filaments N and several filaments within or near AR in the S. 2012-04-23 2012d114 Mk4 16:54-02:23; CHIP 16:42-02:17. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Tall, thin, active prominence in the N-NW. Disk: Many ARs on the Sun today NE, N, NW, S, and SW, all active, The two ARs in the S are particularly active. Long active filament in the N. Curved filament in the SE. Two more filaments in the SW. 2012-04-24 2012d115 Mk4 17:03-00:11; CHIP 17:06-00:08. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Erupting cavity in the SE, very faint event in CoMp intensity Limb: Tall active prominence in the N-NW. Disk: ARs in the N, NW, S, and SW. Thick, very active filament in the NW erupts at the end of the observing day at about 2046-2336UT Long filament in the NE also seen as prominence off-limb. Curved filament in the S. Two more filaments in the SW. 2012-04-25 2012d116 Mk4 16:50-00:25; CHIP 16:44-02:18. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Coronal cavities in the NE and SW visible in CoMP Limb: Active prominences in the N-NE, SE, and N-NW. Large surge from behind the limb at 2135-2157UT AR Eruption from behind the limb in the SW at about 0118-0146UT Disk: ARs in the N, SE, and SW. Many long, active filaments today: long filament in the NE, long, curved , almost S-shaped filament in he S, and two filaments in the SW near ARs. 2012-04-26 2012d117 Mk4 16:52-02:15; CHIP 16:41-02:19. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Active prominences in the N-NE and N-NW. Disk: ARs in the N, SE, and SW. Many long, active filaments today: long filament in the N-NE, long, curved, active, S-shaped filament in the S-SW, and two filaments near the SW limb. 2012-04-27 2012d118 Mk4 16:49-01:10; CHIP 16:28-19:41. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Small prominences in the N-NE, SW, W, and NW. Large surge from behind the limb in the W-NW at 0135-0200UT, visible in GONG Disk: ARs in the NE, NW, SE, and SW. Very active, curved filament in the S-SW. Long active filaments in the N-NE and SW. 2012-04-28 2012d119 Mk4 16:52-02:20; CHIP 16:46-02:22. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Tall prominences in the N-NE and N-NW, corresponds to coronal cavities Disk: Large ARs in the S-SE, NE, and NW are quite active. Compact Halpha flares in smaller AR in the NE at 2011-2020UT and 2208-2234UT Many long, active filaments in the N (with barbs), S-SW 2012-04-29 2012d120 Mk4 17:08-00:06; CHIP 17:07-00:04. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Tall prominences in the N-NE and N-NW, correspond to coronal cavities Disk: Large ARs in the S and SE. Flare/eruption in AR in the SE at 0254-0301UT seen in GONG Halpha Many long, active filaments in the N (with barbs), S, and SW 2012-04-30 2012d121 Mk4 16:54-02:36; CHIP 16:27-02:36. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Small prominences in the N-NE and N-N. Small active prominence in the SE. Limb surge/eruption in the E at 0213-0234UT. Strong limb surging in the SW at about 2250-2317UT Disk: Large ARs in the SE and S-SW. Many long, active filaments in the N, NE (with barbs), and SE. Two small very active filaments in the S fade during 2000-2350UT, apparent slow eruption 2012-05-01 2012d122 Mk4 No Data; CHIP No Data. 2012-05-02 2012d123 Mk4 16:45-02:22; CHIP 16:22-02:14. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Small prominences in the NE, SE, and NW. Disk: Large AR plages in the SE and SW are very active throughout the day. Very active filaments in the SW within/near the AR. Curved, moderately active filament in the N., 2012-05-03 2012d124 Mk4 17:53-02:14; CHIP 17:52-02:20. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Large, active prominences in the NE, E and SE. The hedgerow prominence in the NE has some dark bubbles at its base. Disk: Large AR plages in the S and SW are very active. AR plage near the NE limb. Long and curved, S-shaped, active filament in the N. Active filaments in the SW. 2012-05-04 2012d125 Mk4 16:59-02:16; CHIP 20:51-02:10. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Several small active prominences in the NE (quite active), SE, and NW (also quite active) Strong surging from AR at the E limb at 2200-2230UT and again at about 0300-0320UT seen in GONG Halpha Some surging also at the SW limb Disk: Large AR plage in the NE. Large ARs in the S and SW (near the limb) Small compact Halpha flare at 2350-2400UT in the SR in the SW. Several AR very active filaments in the NE (curved) and S, SW. 2012-05-05 2012d126 Mk4 16:50-02:21; CHIP 16:50-02:22. Corona: Mk4 CME in the NE with prominence core at about 1835-1938UT does not have a clear front No CoMP data vailable yet. Limb: Large but relatively faint arched prominence eruption in the E-NE in progress at the beginning of the day 1650-1842UT, seen in HeI and Halpha. Surging off the E limb. Disk: Large ARs in the NE and SW (is particularly active). Active filaments in the NE and SW 2012-05-06 2012d127 Mk4 17:12-00:47; CHIP 17:11-00:46. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Small prominence in the SE. Disk: Large ARs in the NE and in the SW are quite active. Many filaments on the Sun today in the: S-shaped filament in the NW, Very active filament in the NE near AR, very active filament in the SW inside AR. Large polar crown in the S-SE. 2012-05-07 2012d128 Mk4 16:46-02:16; CHIP 16:28-02:15. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Low-lying, very active prominence in the W. Disk: Large ARs in the NE and in the SW are quite active. Many filaments on the Sun today: very active filament in the N, another active filament in the S, and also filaments inside ARs. Large, thick polar crown in the S-SE. 2012-05-08 2012d129 Mk4 17:31-19:32; CHIP 17:10-23:36. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Small but nice and bright prominence in the SW Disk: Large ARs in the NE and in the SW with active filaments Many active filaments on the Sun today in the N and S. Large, thick polar crown in the S-SE. 2012-05-09 2012d130 Mk4 17:16-01:18; CHIP 16:18-01:25. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Low-lying active prominence in the SE Disk: Very large AR in the NE is very active, hosts one of the largest spot in the cycle so far. Series of several small compact Halpha flares in this AR, happen in fast sequence starting at about 2047UT until about 2115UT Several filaments in the N and S. Large, thick polar crown in the S. 2012-05-10 2012d131 Mk4 16:42-02:15; CHIP 16:45-02:22. Corona: No noticeable coronal activity in uncalibrated Mk4 data. Limb: Small prominences in the SE and SW (correspond to polar crown). Low-lying prominences in the NW Disk: Very large AR in the NE is very active, has a very large spot, shows continual brightening/flaring. Many small, curved filaments in the S Thick polar crown in the S. 2012-05-11 2012d132 Mk4 16:51-21:57; CHIP 16:18-22:23. 2012-05-12 2012d133 Mk4 16:47-19:45; CHIP 16:47-19:42. 2012-05-13 2012d134 Mk4 No Data; CHIP No Data. 2012-05-14 2012d135 Mk4 16:52-23:08; CHIP 16:11-23:29. 2012-05-15 2012d136 Mk4 16:44-00:35; CHIP 16:43-00:36.