daily.2020 --------------- 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. but note that the activity report refers to the MLSO observing day, NOT to the calendar day. The typical observing day at MLSO is from about 1700-1730UT to about 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 ----------------------------------------------------------------------- 2020-01-01 2020d001 KCor: No noticeable coronal activity. 2020-01-02 2020d002 KCor: No noticeable coronal activity. Small coronal cavity in the NW. 2020-01-03 2020d003 No observations at MLSO today. No observer on site. 2020-01-04 2020d004 KCor: Narrow jet on the E limb. Large coronal cavity in the NW with bright prominence. 2020-01-05 2020d005 KCor: No noticeable coronal activity. 2020-01-06 2020d006 KCor: jet over the S pole. 2020-01-07 2020d007 No observations at MLSO today. Fog. 2020-01-08 2020d008 KCor: No noticeable coronal activity. 2020-01-09 2020d009 No observations at MLSO today. Fog. 2020-01-10 2020d010 No observations at MLSO today. Fog. 2020-01-11 2020d011 No observations at MLSO today. Overcast. 2020-01-12 2020d012 No observations at MLSO today. 2020-01-13 2020d013 No observations at MLSO today. Overcast. 2020-01-14 2020d014 No observations at MLSO today. Cirrus. 2020-01-15 2020d015 No observations at MLSO today. Overcast. 2020-01-16 2020d016 No observations at MLSO today. Cloudy. 2020-01-17 2020d017 KCor: No noticeable coronal activity. Very short observing day. Elongated coronal cavity in the W-SW. 2020-01-18 2020d018 KCor: No noticeable coronal activity. 2020-01-19 2020d019 KCor: No noticeable coronal activity. Elongated coronal cavity in the W-SW. 2020-01-20 2020d020 KCor: No noticeable coronal activity. Coronal cavity in the SW. Narrow jet in over the S pole. 2020-01-21 2020d021 KCor: No noticeable coronal activity. Coronal cavity in the SW. Very dark, round coronal cavity in the NW with very bright prominence. 2020-01-22 2020d022 KCor: No noticeable coronal activity. Coronal cavity in the SW. Very active prominence with swirling motions in the SW, is seen to rise along the north edge of the coronal cavity 2020-01-23 2020d023 KCor: No noticeable coronal activity. Dark coronal cavity in the SW. 2020-01-24 2020d024 KCor: No noticeable coronal activity. 2020-01-25 2020d025 KCor: No noticeable coronal activity. Coronal cavity in the NE. 2020-01-26 2020d026 KCor: No noticeable coronal activity. Faint coronal cavities in the NE. 2020-01-27 2020d027 KCor: Jet in the NW. Oval coronal cavity in the NE with bright prominence. 2020-01-28 2020d028 No observations at MLSO today. Cirrus. 2020-01-29 2020d029 KCor: No noticeable coronal activity. Two coronal cavities in the SE with prominences. 2020-01-30 2020d030 KCor: No noticeable coronal activity. 2020-01-31 2020d031 KCor: No noticeable coronal activity. 2020-02-01 2020d032 KCor: No noticeable coronal activity. 2020-02-02 2020d033 KCor: No noticeable coronal activity. 2020-02-03 2020d034 KCor: No noticeable coronal activity. Small coronal cavity in the NW. 2020-02-04 2020d035 KCor: faint motion in the W-SW. Large coronal cavity in the NW. 2020-02-05 2020d036 KCor: No noticeable coronal activity. Coronal cavity in the NW with bright prominence. 2020-02-06 2020d037 No observation at MLSO today. Light rain. 2020-02-07 2020d038 No observation at MLSO today. Overcast. 2020-02-08 2020d039 KCor: No noticeable coronal activity. Coronal cavity in the NW with bright prominence. 2020-02-09 2020d040 KCor: No noticeable coronal activity. Dark coronal cavity in the NW with bright prominence. 2020-02-10 2020d041 No observation at MLSO today. Fog. 2020-02-11 2020d042 KCor: No noticeable coronal activity. Coronal cavity in the NW. 2020-02-12 2020d043 KCor: No noticeable coronal activity. Coronal cavity in the NW. 2020-02-13 2020d044 No observation at MLSO today.Fog. 2020-02-14 2020d045 KCor: No noticeable coronal activity. 2020-02-15 2020d046 KCor: No noticeable coronal activity. 2020-02-16 2020d047 KCor: No noticeable coronal activity. Active prominence in the NE. 2020-02-17 2020d048 KCor: No noticeable coronal activity. Small coronal cavity in the NE. Faint coronal cavity in the SW. 2020-02-18 2020d049 KCor: Faint outward and equatorward motion in the SE early in the day Coronal cavity in the NE. 2020-02-19 2020d050 KCor: No noticeable coronal activity. Coronal cavity in the NE. Small coronal cavity in the SW. 2020-02-20 2020d051 KCor: No noticeable coronal activity. Active prominence in the NE. Coronal cavity in the SW. Small coronal cavity in the NW. 2020-02-21 2020d052 KCor: No noticeable coronal activity. Apparent prominence motion in the SE. Small coronal cavity in the NW. 2020-02-22 2020d053 KCor: Faint outflow in the SE. Coronal cavity in the NE. Faint coronal cavity in the NW. 2020-02-23 2020d054 KCor: Faint prominence eruption inside coronal cavity in the NE at about 1830-1910UT. Faint coronal cavity in the NW. 2020-02-24 2020d055 KCor: No noticeable coronal activity. Coronal cavity with bright prominence in the NE. 2020-02-25 2020d056 KCor: Narrow jet in the SE. Dark coronal cavity in the NE. 2020-02-26 2020d057 KCor: No noticeable coronal activity. Coronal cavity in the NE. 2020-02-27 2020d058 KCor: No noticeable coronal activity. 2020-02-28 2020d059 KCor: No noticeable coronal activity. 2020-02-29 2020d060 No observations at MLSO today. 2020-03-01 2020d061 No observations at MLSO today. 2020-03-02 2020d062 KCor: Very narrow jet over the N pole. Coronal cavity in the NW. 2020-03-03 2020d063 No observations at MLSO today. Fog. 2020-03-04 2020d064 KCor: No noticeable coronal activity. Coronal cavity in the NW. 2020-03-05 2020d065 KCor: No noticeable coronal activity. Coronal cavity in the NW. 2020-03-06 2020d066 KCor: Very narrow, non-radial jet in the S-SE 2020-03-07 2020d067 No observations at MLSO today. Cirrus. 2020-03-08 2020d068 KCor: No noticeable coronal activity. Coronal cavity in the NE with prominence. Round coronal cavity in the NW. 2020-03-09 2020d069 KCor: No noticeable coronal activity. Round coronal cavity in the NW. 2020-03-10 2020d070 KCor: No noticeable coronal activity. Faint coronal cavity in the NE. Coronal cavity in the NW. 2020-03-11 2020d071 KCor: No noticeable coronal activity. Coronal cavity in the NW. 2020-03-12 2020d072 No observations at MLSO today. Cirrus. 2020-03-13 2020d073 No observations at MLSO today. Overcast. 2020-03-14 2020d074 No observations at MLSO today. Windy. 2020-03-15 2020d075 No observations at MLSO today. Overcast. 2020-03-16 2020d076 No observations at MLSO today. Overcast. 2020-03-17 2020d077 No observations at MLSO today. Cirrus. 2020-03-18 2020d078 No observations at MLSO today. Overcast. 2020-03-19 2020d079 KCor: No noticeable coronal activity. Pseudostreamer in the SW. 2020-03-20 2020d080 No observations at MLSO today. Overcast. 2020-03-21 2020d081 No observations at MLSO today. 2020-03-22 2020d082 KCor: No noticeable coronal activity. Coronal cavity in the NW. 2020-03-23 2020d083 KCor: No noticeable coronal activity. Coronal cavity in the NW. 2020-03-24 2020d084 KCor: No noticeable coronal activity. Coronal cavity in the SW with prominence. Coronal cavity in the NW with prominence. 2020-03-25 2020d085 KCor: Active prominence in the NE at about 1740-1850UT Coronal cavity in the SW with rising prominence. Slow rising cavity in the W noticeable late in the observing day. Coronal cavity in the NW. 2020-03-26 2020d086 No observations at MLSO today. Cirrus. 2020-03-27 2020d087 No observations at MLSO today. No staff onsite. 2020-03-28 2020d088 No observations at MLSO today. Cloudy. 2020-03-29 2020d089 No observations at MLSO today. Cirrus. 2020-03-30 2020D090 No observations at MLSO today. Cirrus 2020-03-31 2020D091 No observations at MLSO today. Clouds and fog. 2020-04-01 2020D092 KCor: No noticeable coronal activity. Only a few images because of bad weather. 2020-04-02 2020D093 KCor: No noticeable coronal activity. Coronal cavity in the SE. 2020-04-03 2020D094 No observations at MLSO today. Cirrus 2020-04-04 2020D095 KCor: No noticeable coronal activity. Prominence in the W-SW. 2020-04-05 2020D096 No observations at MLSO today. Cloudy 2020-04-06 2020D097 KCor: No noticeable coronal activity. Only a few images today. 2020-04-07 2020D098 No observations at MLSO today. Cloudy 2020-04-08 2020D099 KCor: No noticeable coronal activity. 2020-04-09 2020D100 KCor: No noticeable coronal activity. Coronal cavity in the NE. 2020-04-10 2020D101 KCor: Eruption in the NW, originates in the new-cycle active region, but only a few good images. 2020-04-11 2020D102 No observations at MLSO today. Cloudy 2020-04-12 2020D103 No observations at MLSO today. Cirrus 2020-04-13 2020D104 No observations at MLSO today. Cirrus 2020-04-14 2020D105 No observations at MLSO today. Clouds, snow. 2020-04-15 2020D106 KCor: No noticeable coronal activity. 2020-04-16 2020D107 KCor: No noticeable coronal activity. 2020-04-17 2020D108 KCor: No noticeable coronal activity. Coronal cavity in the NE. 2020-04-18 2020D109 KCor: No noticeable coronal activity. Coronal cavity in the NE. 2020-04-19 2020D110 KCor: No noticeable coronal activity. Dark coronal cavity in the NE. 2020-04-20 2020D111 KCor: No noticeable coronal activity. Dark coronal cavity in the NE. 2020-04-21 2020D112 KCor: No noticeable coronal activity. Dark coronal cavity in the NE. Coronal cavity in the NW. 2020-04-22 2020D113 KCor: No noticeable coronal activity. Large coronal cavity in the NW. 2020-04-23 2020D114 No observations at MLSO today. Cirrus 2020-04-24 2020D115 No observations at MLSO today. Overcast. 2020-04-25 2020D116 No observations at MLSO today. Cirrus 2020-04-26 2020D117 No observations at MLSO today. Cirrus 2020-04-27 2020D118 KCor: No noticeable coronal activity. Small, dark coronal cavity in the NW. 2020-04-28 2020D119 KCor: No noticeable coronal activity. 2020-04-29 2020D120 KCor: No noticeable coronal activity. Faint coronal cavity oil the NW. 2020-04-30 2020D121 KCor: No noticeable coronal activity. Very dark coronal cavity in the SE. 2020-05-01 2020D122 KCor: No noticeable coronal activity. Very dark coronal cavity in the SE. 2020-05-02 2020D123 KCor: No noticeable coronal activity. Large, very dark coronal cavity in the SE. 2020-05-03 2020D124 KCor: Dark coronal cavity in the SE with bright active prominence. Small, dark coronal cavity in the NW. Outflow in the SW at about 1832-2340UT, appears as a dark cavity region moving outward. Fast puff of material moving out in the W at about 0000-0211UT. SDO shows it originates in the old cycle AR near the limb. 2020-05-04 2020D125 KCor: Small, dark coronal cavity with bright eruptive prominence in the NE 2002-2225UT. Dark coronal cavity in the SE with very large, bright active prominence. Small, very dark coronal cavity in the NW. 2020-05-05 2020D126 KCor: No noticeable coronal activity. Small, dark coronal cavity in the NE. Coronal cavity in the NW. 2020-05-06 2020D127 KCor: No noticeable coronal activity. Short observing day. Small, dark coronal cavity in the NE. 2020-05-07 2020D128 KCor: No noticeable coronal activity. 2020-05-08 2020D129 KCor: Small cavity eruption in the NW, starts around 1900UT still in progress at the end of the observing day at 2018UT. 2020-05-09 2020D130 KCor: Cavity/prominence eruption in the SW at about 1730-2020UT. 2020-05-10 2020D131 No observations at MLSO today. Cirrus. 2020-05-11 2020D132 KCor: Short observing day. Small, very faint coronal cavity in the W-NW appears to move outward. This is the beginning of a cavity eruption seen in SDO. 2020-05-12 2020D133 No observations at MLSO today. Cirrus. 2020-05-13 2020D134 KCor: No noticeable coronal activity. Very faint coronal cavity in the NE. 2020-05-14 2020D135 KCor: No noticeable coronal activity. Coronal cavity in the E-SE. 2020-05-15 2020D136 KCor: No noticeable coronal activity. Coronal cavity in the NE. 2020-05-16 2020D137 KCor: Narrow polar jet in the S around d 1817-1837UT. 2020-05-17 2020D138 KCor: No noticeable coronal activity. Small coronal cavity in the NE. Coronal cavity in the E-SE with tall, thin, bright prominence next to new-cycle AR, the cavity/prominence are seen to slowly rise during the course of the observing day. 2020-05-18 2020D139 KCor: No noticeable coronal activity. Coronal cavity in the NE. Faint coronal cavity in the SW. 2020-05-19 2020D140 KCor: No noticeable coronal activity. Two coronal cavities in the NE with small bright prominences. 2020-05-20 2020D141 KCor: Coronal cavity in the NE. Cavity/prominence eruption. Another coronal cavity in the NE, south of the other one, erupts at about 2046-0112UT Surge or small, faint CME in the E-SE at about 0044-0106UT 2020-05-21 2020D142 KCor: No noticeable coronal activity. Two small coronal cavities in the NE with small bright prominences. 2020-05-22 2020D143 KCor: No noticeable coronal activity. Possible faint outflow in the W-SW. 2020-05-23 2020D144 KCor: No noticeable coronal activity. Very active prominence in the NW in cavity/prominence system, prominence material is seen to rise and flow along an arched trajectory. Narrow jet in the SW at about 1755-1821UT. 2020-05-24 2020D145 No observations at MLSO today. Cirrus. 2020-05-25 2020D146 KCor: No noticeable coronal activity. Dark coronal cavity in the NW with very bright prominence. 2020-05-26 2020D147 No observations at MLSO today. 2020-05-27 2020D148 No observations at MLSO today. 2020-05-28 2020D149 KCor: No noticeable coronal activity. Bright new cycle AR in the NE shows some flaring. 2020-05-29 2020D150 KCor: Bright new cycle AR in the NE. Jet noticeable 1950-2015UT Faint cme in the SE visible at about 0010-0103UT, originates i9n the new-cycle AR in the SE, flare with dimmings noticeable in SDO 2020-05-30 2020D151 KCor: No noticeable coronal activity. Large coronal cavity in the NW. 2020-05-31 2020D152 KCor: No noticeable coronal activity. Large coronal cavity in the NW. 2020-06-01 2020D153 KCor: Narrow, very bright outflow in the SE noticeable at 1650-1740UT, originates within the AR just behind the limb. Tall structure associated with AR. Not clear how much material escapes. This could be a CME or just a large surge. Dark coronal cavity with bright prominence in the NW. 2020-06-02 2020D154 KCor: No noticeable coronal activity. Coronal cavity with bright prominence in the NW. 2020-06-03 2020D155 KCor: Prominence eruption in progress in the NW, 1651-2221UT. Venus transit visible in the N. 2020-06-04 2020D156 KCor: Jet/surge in the SE at about 0001-0019UT from new cycle AR near the limb, outflow at the same location earlier in the day around 1805-1813UT, no LASCO come possible CME in the SW, large, dark region slowly moves outward, small puff towards the end of the day, corresponds to a LASCO outflow 2020-06-05 2020D157 KCor: No noticeable coronal activity. Faint coronal cavity in the NE. 2020-06-06 2020D158 KCor: No noticeable coronal activity. Faint coronal cavity in the NE. 2020-06-07 2020D159 No observations at MLSO today. Cirrus. 2020-06-08 2020D160 Only one image today. Cloudy. 2020-06-09 2020D161 KCor: No noticeable coronal activity. 2020-06-10 2020D162 KCor: No noticeable coronal activity. 2020-06-11 2020D163 No observations at MLSO today. Cirrus. 2020-06-12 2020D164 KCor: Cavity/prominence eruption in progress in the SW at 1706-0221UT. Large dark cavity with bright prominence move outward and equatorward. Some prominence material falls down and prominence disappears from view around 2200UT. 2020-06-13 2020D165 KCor: Non-radial jet in the SW at about 1857-1913UTŧ Coronal cavity in the NW. 2020-06-14 2020D166 KCor: very narrow jet in the NE at 1850-1855UT. Dark coronal cavity in the NW. 2020-06-15 2020D167 KCor: No noticeable coronal activity. 2020-06-16 2020D168 No observations at MLSO today. Cirrus. 2020-06-17 2020D169 KCor: No noticeable coronal activity. Coronal cavity in the SW with small bright prominence. 2020-06-18 2020D170 No observations at MLSO today. Cirrus. 2020-06-19 2020D171 No observations at MLSO today. Cirrus. 2020-06-20 2020D172 No observations at MLSO today. Cirrus. 2020-06-21 2020D173 No observations at MLSO today. Cirrus. 2020-06-22 2020D174 No observations at MLSO today. Cirrus. 2020-06-23 2020D175 KCor: Possible coronal cavity eruption in the NE during data gap. coronal cavity in the NW. 2020-06-24 2020D176 KCor: No noticeable coronal activity. 2020-06-25 2020D177 KCor: Jet over the S pole. 2020-06-26 2020D178 KCor: No noticeable coronal activity. 2020-06-27 2020D179 KCor: Faint jet in the NW. Very dark coronal cavity in the NE. 2020-06-28 2020D180 KCor: No noticeable coronal activity. Very dark, small and round coronal cavity in the NE. 2020-06-29 2020D181 KCor: No noticeable coronal activity. Coronal cavities in the NE, SE,and NW. Active region in the SW. 2020-06-30 2020D182 KCor: No noticeable coronal activity. Dark coronal cavities in the SE and NW. 2020-07-01 2020D183 KCor: No noticeable coronal activity. Dark coronal cavities in the SE and NW. 2020-07-02 2020D184 KCor: Dark coronal cavity in the SE. Active prominence in the NW. 2020-07-03 2020D185 KCor: Jet or narrow CME in the NE at 1803-1902UT. Dark coronal cavity in the SE. 2020-07-04 2020D186 KCor: No noticeable coronal activity. Short observing day. 2020-07-05 2020D187 KCor: No noticeable coronal activity. Short observing day. 2020-07-06 2020D188 KCor: No noticeable coronal activity. Small jet over the S pole at 1840-1850UT. Small coronal cavity in the NW becomes visible in the fov during the second half of the observing day. 2020-07-07 2020D189 KCor: No noticeable coronal activity. 2020-07-08 2020D190 KCor: Slow moving CME in progress in the W-SW, appears as a bright, elongated, drop-shaped structure very slowly moving outward and equatorward 1700-0110UT. 2020-07-09 2020D191 KCor: Small cavity/prominence eruption in the W-NW at about , corresponds to a filament eruption seen in SDO 2020-07-10 2020D192 KCor: No noticeable coronal activity. 2020-07-11 2020D193 KCor: No noticeable coronal activity. 2020-07-12 2020D194 No observations at MLSO today. Cirrus. 2020-07-13 2020D195 No observations at MLSO today. Cloudy. 2020-07-14 2020D196 No observations at MLSO today. Cirrus. 2020-07-15 2020D197 No observations at MLSO today. Overcast. 2020-07-16 2020D198 No observations at MLSO today. Cirrus. 2020-07-17 2020D199 KCor: No noticeable coronal activity. Faint drop-shaped coronal cavity in the E-SE. 2020-07-18 2020D200 KCor: No noticeable coronal activity. 2020-07-19 2020D201 KCor: No noticeable coronal activity. 2020-07-20 2020D202 KCor: No noticeable coronal activity. 2020-07-21 2020D203 KCor: No noticeable coronal activity. Coronal cavity in the SE. Polar jet in the S at about 1732-1742 2020-07-22 2020D204 KCor: No noticeable coronal activity. Coronal cavity in the SE. Coronal cavity in the W-SW. 2020-07-23 2020D205 KCor: Jet or narrow CMEs in the S-SE at about 1752-1853UT. Coronal cavity in the W-SW. 2020-07-24 2020D206 KCor: No noticeable coronal activity. 2020-07-25 2020D207 KCor: No noticeable coronal activity. 2020-07-26 2020D208 No observations at MLSO today. Light rain. 2020-07-27 2020D209 KCor: No noticeable coronal activity. Large coronal cavity in the NE. 2020-07-28 2020D210 KCor: No noticeable coronal activity. Coronal cavity in the NE. Large coronal cavity in the SW. Small coronal cavity in the NW. 2020-07-29 2020D211 KCor: No noticeable coronal activity. Raising prominence in the NE. Small bright prominence in the SE. Small coronal cavity in the NW. 2020-07-30 2020D212 KCor: Slowly rising cavity/prominence system in the SE, prominence is very bright and tall. Jets/outward motions in the S-SE area. Motion over the W limb. Coronal cavity in the NW. 2020-07-31 2020D213 KCor: CME in progress, moves equatorward, this is end of the slow cavity/prominence eruption seen yesterday. large loop motion in the W-SW around 2243-2343UT. 2020-08-01 2020D214 KCor: Motion of a dark region noticeable in the NE. Faint jets in the W-SW area. 2020-08-02 2020D215 KCor: No noticeable coronal activity. 2020-08-03 2020D216 KCor: Small coronal cavity in the NE. Very large coronal cavity in the E-SE. Cavity/prominence system seen to rise above the NW limb at the end of the observing day at about 0002-0211UT, moves equatorward, the prominence material is seen to flow along an arched trajectory, corresponds to the slow rise of a dark balloon-shaped cavity in SDO that will erupt the next day. 2020-08-04 2020D217 KCor: No noticeable coronal activity. Coronal cavity with small bright prominence in the NE. 2020-08-05 2020D218 KCor: No noticeable coronal activity. Coronal cavity in the E-SE. 2020-08-06 2020D219 KCor: No noticeable coronal activity. Coronal cavity in the W-SW. 2020-08-07 2020D220 KCor: No noticeable coronal activity. Small coronal cavity becomes visible in the SW at the end of the day. 2020-08-08 2020D221 KCor: No noticeable coronal activity. Small coronal cavity in the SW. 2020-08-09 2020D222 KCor: No noticeable coronal activity. Coronal cavity in the NE. Coronal cavity in the NW. 2020-08-10 2020D223 KCor: No noticeable coronal activity. Coronal cavity in the NE. Coronal cavity in the NW. 2020-08-11 2020D224 KCor: Coronal cavity in the NE. Possible prominence motion around 2015UT in the SE. Coronal cavity in the NW. 2020-08-12 2020D225 KCor: No noticeable coronal activity. Coronal cavity in the NE. Coronal cavity in the SE. Small coronal cavity in the SW. Coronal cavity in the NW. 2020-08-13 2020D226 KCor: No noticeable coronal activity. Coronal cavity in the SW, faint outflow in the proximity of the cavity early in the observing day 2020-08-14 2020D227 No observations at MLSO today. Cirrus. 2020-08-15 2020D228 No observations at MLSO today. Cloudy. 2020-08-16 2020D29 KCor: Surge or fast CME in the W-NW at about 0025-0109UT, still in progress at the end of the observing day, moves equatorward,seems to originate from the new cycle AR just behind the limb. Coronal cavity in the NW. 2020-08-17 2020D230 KCor: No noticeable coronal activity. Coronal cavity in the NW. 2020-08-18 2020D231 KCor: Slow upward motion of large cavity with bright thin prominence in the W-SW. Dark coronal cavity in the NW with small prominence. 2020-08-19 2020D232 KCor: No noticeable coronal activity. Coronal cavity in the NW. 2020-08-20 2020D233 KCor: Fast, wide, relatively faint CME with round front and bright core in the SE at about 0203-0244UT, originates from AR near the limb. 2020-08-21 2020D234 KCor: Jet/outflow in the W-SW at about 2225-2245UT. 2020-08-22 2020D235 KCor: No noticeable coronal activity. 2020-08-23 2020D236 KCor: Faint narrow jet in the S-SE. 2020-08-24 2020D237 KCor: Active, possibly eruptive prominence in the W-NW. Coronal cavity in the NW. 2020-08-25 2020D238 KCor: No noticeable coronal activity. Dark, small coronal cavity in the NE. Large, dark coronal cavity in the NW with bright active prominence. 2020-08-26 2020D239 KCor: Dark, large coronal cavity in the NE. Erupting coronal cavity in the NW starts at about 2045UT, still in progress at the end of the observing day at 0220UT, appears as a large balloon-shaped structure moving outward and equatorward. The eruption is seen in SDO and the CME in LASCO. 2020-08-27 2020D240 KCor: No noticeable coronal activity today. Dark, large coronal cavity in the NE. 2020-08-28 2020D241 KCor: Prominence/cavity eruption in the E-SE at about 1740-2320UT. 2020-08-29 2020D242 KCor: No noticeable coronal activity today. Dark, large coronal cavity in the NE. Apparent jets in the N-NE. 2020-08-30 2020D243 KCor: No noticeable coronal activity today. Dark coronal cavity in the NE. 2020-08-31 2020D244 No observations at MLSO today. Cirrus. 2020-09-01 2020D245 KCor: No noticeable coronal activity today. Dark coronal cavity in the NE appears different from two days ago, this is the beginning of a cavity eruption seen by SDO. 2020-09-02 2020D246 No observations at MLSO today. Cirrus. 2020-09-03 2020D247 KCor: No noticeable coronal activity today. 2020-09-04 2020D248 No observations at MLSO today. Cirrus. 2020-09-05 2020D249 KCor: No noticeable coronal activity today. Coronal cavity in the NE with small bright prominence visible just above the occulter. 2020-09-06 2020D250 No observations at MLSO today. Cirrus. 2020-09-09 2020D253 KCor: Faint loop motion in the NE. Dark coronal cavity in the NW. 2020-09-10 2020D254 KCor: Very active prominence in the SE, shows swirling motions. Very dark coronal cavity in the NW. 2020-09-11 2020D255 KCor: No noticeable coronal activity. Coronal cavity in the NW. 2020-09-12 2020D256 KCor: No noticeable coronal activity. Faint coronal cavity in the NW. 2020-09-13 2020D257 No observations at MLSO today. Cirrus. 2020-09-14 2020D258 KCor: No noticeable coronal activity. Coronal cavity in the NW. 2020-09-15 2020D259 KCor: Cavity/prominence eruption in progress in the NW, moves equatorward. 2020-09-16 2020D260 KCor: No noticeable coronal activity. 2020-09-17 2020D261 KCor: No noticeable coronal activity. 2020-09-18 2020D262 KCor: No noticeable coronal activity. 2020-09-19 2020D263 No observations at MLSO today. Cloudy. 2020-09-20 2020D264 KCor: No noticeable coronal activity. Coronal cavity in the SE. 2020-09-21 2020D265 No observations at MLSO today. Cloudy. 2020-09-22 2020D266 KCor: No noticeable coronal activity. Coronal cavity in the N-NE. Dark coronal cavity in the SE. Faint coronal cavity in the NW. 2020-09-23 2020D267 KCor: No noticeable coronal activity. Tall coronal cavity in the N-NE. Faint coronal cavity in the SE. Coronal cavity in the NW. 2020-09-24 2020D268 KCor: No noticeable coronal activity. Dark coronal cavity in the N-NE with small bright prominence becoming visible and rising at the end of the observing day. Dark coronal cavity in the NW. 2020-09-25 2020D269 KCor: Dark coronal cavity in the N-NE. Dark, small coronal cavity in the NW. Small dark cavity rising in the SE at the end of the observing day 0156-0252UT, this corresponds to an eruption best seen in SDO/AIA 171. 2020-09-26 2020D270 KCor: No noticeable coronal activity. Faint coronal cavity in the N-NE. Small coronal cavity in the NW. 2020-09-27 2020D271 KCor: Apparent faint and narrow outflow in the W-NW at about 1750-1925UT. 2020-09-28 2020D272 KCor: No noticeable coronal activity. 2020-09-29 2020D273 KCor: No noticeable coronal activity. 2020-09-30 2020D274 KCor: No noticeable coronal activity. 2020-10-01 2020D275 KCor: No noticeable coronal activity. 2020-10-02 2020D276 KCor: No noticeable coronal activity. 2020-10-03 2020D277 KCor: No noticeable coronal activity. Narrow jet in the N-NE at about 2050-2120UT 2020-10-04 2020D178 No observations at MLSO today. Cirrus. 2020-10-05 2020D279 KCor: Surging within AR at the NW limb around 2312-2328UT 2020-10-06 2020D280 KCor: No noticeable coronal activity. Coronal cavity in the NE. Narrow jet in the SW. 2020-10-07 2020D281 KCor: Coronal cavity in the SW appears to slowly move outward but noisy data 2020-10-08 2020D282 KCor: No noticeable coronal activity. 2020-10-09 2020D283 KCor: No noticeable coronal activity. 2020-10-10 2020D284 KCor: No observations at MLSO today. Cirrus 2020-10-11 2020D285 KCor: No observations at MLSO today. Cirrus 2020-10-12 2020D286 KCor: No observations at MLSO today. Cirrus 2020-10-13 2020D287 KCor: No noticeable coronal activity. 2020-10-14 2020D288 KCor: No noticeable coronal activity. 2020-10-15 2020D289 KCor: Slow, relatively faint eruption in the NW in progress, visible around at 1725-2001UT, also seen in LASCO and SDO 2020-10-16 2020D290 KCor: No observations at MLSO today. Cirrus 2020-10-17 2020D291 KCor: Very short observing day. No noticeable coronal activity. 2020-10-18 2020D292 KCor: Very short observing day. No noticeable coronal activity. Bright prominences noticeable just above the occulter in the NE and SE, not particularly active. 2020-10-19 2020D293 KCor: Short observing day. No noticeable coronal activity. Bright prominences noticeable above the occulter in the NE and SE, not particularly active. 2020-10-20 2020D294 KCor: Coronal cavity with small active prominence in the NE. Small bright prominence in the SE. 2020-10-21 2020D295 KCor: No observations at MLSO today. Altocumulus. 2020-10-22 2020D296 KCor: Very short observing day. Very tall dark coronal cavity with tall, bright prominence in the NE. Small prominence in the SE. CME in the SW with narrow bright front, noticeable at about 2250-2315UT. 2020-10-23 2020D297 KCor: The tall coronal cavity in the NE is not visible anymore but there is an obvious motion in the E-NE at the edge of the fov of a thin bright feature moving outward and equatorward. This is the end of the cavity eruption: SDO shows that the cavity erupt earlier in the day, before MLSO observations start. 2020-10-24 2020D298 KCor: No noticeable coronal activity. 2020-10-25 2020D299 KCor: Faint motion, loop moving outward, in the NW at about 2100-2120UT, not clear if connected to an eruption. 2020-10-26 2020D300 KCor: No observations at MLSO today. Cirrus. 2020-10-27 2020D301 KCor: No observations at MLSO today. Cloudy. 2020-10-28 2020D302 KCor: No noticeable coronal activity. Short observing day. 2020-10-29 2020D303 KCor: No observations at MLSO today. Cloudy. 2020-10-30 2020D304 KCor: Large narrow outflow in the NW noticeable at about 1918-1928UT Outward motion in the SE at approximately 2330-2400UT, possibly a surge originating in the AR behind the limb 2020-10-31 2020D305 KCor: Equatorword outflow, possible CME in the E-SE at about 1750-1830UT, originates in the large AR behind the limb Jet in the N-NE at about 2155-2215UT noticeable in the difference movies. Outflow or loop motion in the NE at 0110-0148UT, not clear if it is a CME. 2020-11-01 2020D306 KCor: Large CME with round front in the SW at about 1900-2020UT from large AR at the limb, also visible in LASCO and SDO. 2020-11-02 2020D307 KCor: No noticeable coronal activity. Short observing day. 2020-11-03 2020D308 KCor: No noticeable coronal activity. Very short observing day. 2020-11-04 2020D309 KCor: No noticeable coronal activity. Apparent pseudostreamer or two cavities nearby in the NE. Coronal cavity in the NW. 2020-11-05 2020D310 KCor: No noticeable coronal activity. Very short observing day. Coronal cavity with bright prominence in the NE. Dark coronal cavity in the NW. 2020-11-06 2020D311 No observations at MLSO today. 2020-11-07 2020D312 KCor: No noticeable coronal activity. Very short observing day. Dark, small and round coronal cavity in the NW. 2020-11-08 2020D313 KCor: No noticeable coronal activity. Large coronal cavity in the SE. Dark, round coronal cavity in the NW with active prominence. 2020-11-09 2020D314 KCor: No noticeable coronal activity. Very short observing day. Dark, small coronal cavity in the NW. 2020-11-10 2020D315 KCor: Possible eruption in the W-SW at about 2300-2321UT 2020-11-11 2020D316 KCor: No noticeable coronal activity. 2020-11-12 2020D317 KCor: No noticeable coronal activity. 2020-11-13 2020D318 KCor: No noticeable coronal activity. Bad data today. 2020-11-14 2020D319 No observations at MLSO today. Cloudy. 2020-11-15 2020D320 No observations at MLSO today. Cloudy. 2020-11-16 2020D321 KCor: No noticeable coronal activity. Only two images. 2020-11-17 2020D322 No observations at MLSO today. Overcast. 2020-11-18 2020D323 No observations at MLSO today. Overcast. 2020-11-19 2020D324 KCor: No noticeable coronal activity. Bad data today. 2020-11-20 2020D325 KCor: No noticeable coronal activity. Coronal cavity in the NE. Faint jet in the E-NE at about 1911-1931UT. 2020-11-21 2020D326 KCor: No noticeable coronal activity. Coronal cavity in the NE. 2020-11-22 2020D327 No observations at MLSO today. Rain. 2020-11-23 2020D328 No observations at MLSO today. Cloudy. 2020-11-24 2020D329 No observations at MLSO today. Cirrus. 2020-11-25 2020D330 No observations at MLSO today. Cirrus. 2020-11-26 2020D331 KCor: Large coronal cavity in the NE. Small round coronal cavity in the SE with small bright prominence. Classic 3-part CME in the NE (below the coronal cavity) noticeable at 2018-2105UT, appears as dark roundish bubble with bright front and bright core moving outward and rapidly expanding in size, originates in the AR at the limb. 2020-11-27 2020D332 KCor: Faint, large coronal cavity in the NE. Faint loop motion in the E-SE at about 1845-1940UT, seems to correspond to a surge in the AR at the limb seen in AIA/304A, not clear if any coronal material escapes. 2020-11-28 2020D333 KCor: No noticeable coronal activity. Large, faint coronal cavity in the NE. Small coronal cavity in then SW. 2020-11-29 2020D334 KCor: No noticeable coronal activity. Coronal changes noticeable in the SE following a CME during the MLSO night, current sheet above helmet streamer just south of it. Coronal cavity in the NE. Small coronal cavity in the SW. 2020-11-30 2020D335 KCor: No noticeable coronal activity. Coronal cavity in the SE and SW. 2020-12-01 2020D336 KCor: No noticeable coronal activity. Coronal cavities in the SE and SW. 2020-12-02 2020D337 KCor: No noticeable coronal activity. 2020-12-03 2020D338 KCor: No noticeable coronal activity. 2020-12-04 2020D339 KCor: Coronal cavity in the NE. Small coronal cavity in the SE. Large coronal cavity in the NW. Faint outflow, possible eruption in the E-NE at about 2030-2100UT. 2020-12-05 2020D340 KCor: No noticeable coronal activity. Coronal cavity in the NE. Coronal cavity in the NW. 2020-12-06 2020D341 KCor: Cavity eruption in progress in the NE, moves equatorward, visible ~1755-2108UT Coronal cavity in the NW. 2020-12-07 2020D342 KCor: Relatively faint and wide CME with round front in the SW, in progress at the beginning of the observing day, moves equatorward, visible ~1803-2004UT. 2020-12-08 2020D343 KCor: No noticeable coronal activity. Coronal cavity in the NE. 2020-12-09 2020D344 KCor: Coronal cavity in the NE. Surge or small prominence eruption in the W-NW at about 2045-2145UT. Faint motion early in the day in the SW, not clear if fringing artifact or real coronal outflow. 2020-12-10 2020D345 KCor: No noticeable coronal activity. Narrow jet in the NE. 2020-12-11 2020D346 KCor: AR loop motion noticeable at ~1858-1929UT in the E-SE, followed by an eruption in the same AR at about ~0044-0320UT Faint CME in progress in the W-SW with round front, visible at ~1756-1912UT Small coronal cavity in the N-NW. 2020-12-12 2020D347 KCor: No noticeable coronal activity. Coronal cavity in the N-NW. 2020-12-13 2020D348 KCor: No noticeable coronal activity. Coronal cavity with dark core in the SE. Coronal cavity in the NW. 2020-12-14 2020D349 KCor: CME in progress in the NE, appears as a dark cavity moving equatorward, ~1756-2119UT. A second eruption starts in approximately the same location, just N of other CME, at ~1933UT. Large prominence eruption in the W interrupted by long data gap, visible at about ~2006-2119UT, noticeable sooner in difference movies, originate in the AR at the SW limb. Dark, round coronal cavity in the SE. Small coronal cavity in the NW. 2020-12-15 2020D350 No observations at MLSO today. Heavy overcast. 2020-12-16 2020D351 No observations at MLSO today. Heavy overcast. 2020-12-17 2020D352 KCor: No noticeable coronal activity. 2020-12-18 2020D353 No observations at MLSO today. Cloudy. 2020-12-19 2020D354 KCor: No noticeable coronal activity. Very short observing day 2020-12-20 2020D355 KCor: No noticeable coronal activity. Very short observing day 2020-12-21 2020D356 KCor: No noticeable coronal activity. Coronal cavity in the NW, possible pseudostreamer. 2020-12-22 2020D357 KCor: Outflow in the SW. Active prominence in the NW, material appears to move upward and falls back in, possible CME. 2020-12-23 2020D358 KCor: No noticeable coronal activity. 2020-12-24 2020D359 KCor: No noticeable coronal activity. 2020-12-25 2020D360 KCor: No noticeable coronal activity. 2020-12-26 2020D361 KCor: No noticeable coronal activity. Very short observing day 2020-12-27 2020D362 KCor: No noticeable coronal activity. Small, dark coronal cavity in the NE. Large coronal cavities in the SE and SW. 2020-12-28 2020D363 KCor: No noticeable coronal activity. Short observing day. Small coronal cavity in the NE. Large coronal cavities in the SE and SW with small bright prominence. 2020-12-29 2020D364 KCor: No noticeable coronal activity. Short observing day. Large coronal cavities in the SE and NW. Large coronal cavity with small bright prominence in the SW. Quadrupolar corona. 2020-12-30 2020D365 KCor: No noticeable coronal activity. Coronal cavities in the SE and NW. Coronal cavity with small bright prominence. Quadrupolar corona. 2020-12-31 2020D366 KCor: Elongated coronal cavity with bright prominence in the NW, appears to be in a near-eruption state.