mlso.daily.2019 --------------- 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 ----------------------------------------------------------------------- 2019-01-01 2019d001 KCor: No noticeable coronal activity. Coronal cavity with bright prominence in the SW. 2019-01-02 2019d002 KCor: No noticeable coronal activity. 2019-01-03 2019d003 KCor: No noticeable coronal activity. Small active prominence in the E. 2019-01-04 2019d004 KCor: No noticeable coronal activity. 2019-01-05 2019d005 KCor: No noticeable coronal activity. Coronal cavity in the NE. Coronal cavity in the NW with small bright prominence. 2019-01-06 2019d006 KCor: CME in the E at about 1840-0042UT, with amorphous front, moves southward, corresponds to a prominence eruption/CME seen in AIA 304A and 171A, also seen in LASCO C2 and C3 on January 7. Coronal cavity in the NE. Coronal cavity in the NW. 2019-01-07 2019d007 KCor: No noticeable coronal activity. Coronal cavity in the NE. Coronal cavity in the SW. Coronal cavities in the NW. 2019-01-08 2019d008 KCor: No noticeable coronal activity. Coronal cavity in the NW with very small bright prominence. 2019-01-09 2019d009 KCor: Very active prominence in the NE seen at the end of the observing day at about 2320-0224UT, appears as tall material flowing around an arched trajectory. Coronal cavity in the NE. Coronal cavity in the SW. Coronal cavity in the NW. 2019-01-10 2019d010 KCor: No noticeable coronal activity. Tall, round coronal cavity in the NW. 2019-01-11 2019d0101 KCor: No noticeable coronal activity Coronal cavity in the NW 2019-01-12 2019d012 KCor: No noticeable coronal activity Coronal cavity in the NW 2019-01-13 2019d013 No observations at MLSO today. Sky too bright. 2019-01-14 2019d014 KCor: No noticeable coronal activity Coronal cavity in the W-NW 2019-01-15 2019d015 KCor: No noticeable coronal activity Faint coronal cavity in the W-NW 2019-01-16 2019d016 KCor: No noticeable coronal activity Coronal cavity with small bright prominence in the W-NW 2019-01-17 2019d017 KCor: No noticeable coronal activity Small coronal cavity in the SE. Faint coronal cavity in the W-NW 2019-01-18 2019d018 KCor: No noticeable coronal activity Small,faint coronal cavity in the E-NE. Small coronal cavity in the SE. Faint coronal cavity in the W-NW. 2019-01-19 2019d019 KCor: No noticeable coronal activity Faint coronal cavity in the E-NE. Small coronal cavity in the SE. Faint coronal cavity in the W-NW. 2019-01-20 2019d020 KCor: No noticeable coronal activity Coronal cavity in the E-NE. Faint coronal cavity in the W-NW. 2019-01-21 2019d021 KCor: No noticeable coronal activity Coronal cavity in the E-NE. 2019-01-22 2019d022 KCor: No noticeable coronal activity. Faint coronal cavity in the W-NW. 2019-01-23 2019d023 KCor: No noticeable coronal activity. Active prominence within a dark coronal cavity in the NE. The small prominence slowly rises during the observing day. Coronal cavity in the W-NW. 2019-01-24 2019d024 KCor: No noticeable coronal activity. Small coronal cavity in the NE. 2019-01-25 2019d025 KCor: No noticeable coronal activity. Dark coronal cavity in the NE. 2019-01-26 2019d026 KCor: No noticeable coronal activity. Coronal cavity in the NE. 2019-01-27 2019d027 KCor: No noticeable coronal activity. Short observing day. Coronal cavity in the NE. Coronal cavity in the SW. 2019-01-28 2019d028 KCor: No noticeable coronal activity. Coronal cavity in the NE. Large coronal cavity with very small prominence in the SW. Faint coronal cavity on the NW with embedded prominence. 2019-01-29 2019d029 KCor: No noticeable coronal activity. Large faint coronal cavity in the SW. Bright AR at the SW limb. 2019-01-30 2019d030 KCor: No noticeable coronal activity. Coronal cavity in the SW. 2019-01-31 2019d031 KCor: No noticeable coronal activity. Coronal cavity in the SW. 2019-02-01 2019d032 KCor: No noticeable coronal activity. Coronal cavity in the SW. 2019-02-02 2019d033 KCor: No noticeable coronal activity. Coronal cavity in the SW with active prominence, will erupt the next day. Coronal cavity in the NW 2019-02-03 2019d034 KCor: No noticeable coronal activity. Coronal cavity in the NW 2019-02-04 2019d035 KCor: No noticeable coronal activity. 2019-02-05 2019d036 KCor: No noticeable coronal activity. Coronal cavity in the E-NE. Coronal cavity in the NW. 2019-02-06 2019d037 KCor: No noticeable coronal activity. Coronal cavity in the E-NE. Dark coronal cavity in the NW. 2019-02-07 2019d038 KCor: No noticeable coronal activity. Short observing day. Cloudy. Coronal cavity in the E-NE. Dark coronal cavity in the NW. 2019-02-08 2019d039 KCor: CME/outflow in progress in the W at the beginning of the observing day at 1759UT also seen in AIA 171 and LASCO C2, it is followed by a narrow jet in the SW at about 2057-2215UT that moves very non-radially equatorward. AIA shows the e vent starts with a prominence eruption in the SW just before the MLSO observing day. Faint coronal cavity in the E-NE. Large coronal cavity in the NW with active prominence 2019-02-09 2019d040 KCor: Faint coronal cavity in the E-NE. Large coronal cavity in the NW with active prominence. 2019-02-10 2019d041 KCor: No observations at MLSO today. Strong Wind. 2019-02-11 2019d042 KCor: No noticeable coronal activity. Coronal cavity in the NW with onion-like structure. 2019-02-12 2019d043 KCor: No noticeable coronal activity. Large coronal cavity in the W-NW with bright prominence. 2019-02-13 2019d044 KCor: No observations at MLSO today. Bright sky. 2019-02-14 2019d045 KCor: Very large, very active but relatively faint prominence in the W-NW. 2019-02-15 2019d046 KCor: No noticeable coronal activity. Coronal cavity in the E-NE. Coronal cavity in the NW 2019-02-16 2019d047 KCor: No noticeable coronal activity. Coronal cavity in the E-NE. Large, faint coronal cavity in the W-NW 2019-02-17 2019d048 KCor: No noticeable coronal activity. Coronal cavity in the E-NE. Faint coronal cavity in the W-NW 2019-02-18 2019d049 KCor: No observations at MLSO today. Windy. 2019-02-19 2019d050 KCor: No observations at MLSO today. Cloudy. 2019-02-20 2019d051 KCor: Eruption in the SE of a small coronal cavity with prominence at about 2336-0050UT, the prominence/cavity moves outward and equatorward. No visible lasco CME Faint coronal cavity in the NE. Large coronal cavity in the W-NW 2019-02-21 2019d052 KCor: No noticeable coronal activity. Coronal cavity in the W-NW. 2019-02-22 2019d053 KCor: No noticeable coronal activity. Coronal cavity in the SW. 2019-02-23 2019d054 KCor: No observations at MLSO today. Cloudy. 2019-02-24 2019d055 KCor: No noticeable coronal activity. Faint coronal cavity in the SW. Coronal cavity with small active prominence in the NW. 2019-02-25 2019d056 KCor: No noticeable coronal activity. Large faint coronal cavity in the SW. Faint coronal cavity in the NW. 2019-02-26 2019d057 KCor: No noticeable coronal activity. Large faint coronal cavity in the SW. 2019-02-27 2019d058 KCor: Eruptive prominence in the SW at about 1755-1900UT. Large faint coronal cavity in the SW, remains stable as the prominence erupts. Double coronal cavity in the NW, one has a small bright prominence. 2019-02-28 2019d059 KCor: No noticeable coronal activity. Very large coronal cavity in the SW. Coronal cavity on the NW. 2019-03-01 2019d060 KCor: No noticeable coronal activity. Very large coronal cavity in the SW. Coronal cavity in the NW with small bright prominence 2019-03-02 2019d061 No observations at MLSO today. One camera died. 2019-03-03 2019d062 No observations at MLSO today. Camera problem. 2019-03-04 2019d063 No observations at MLSO today. Camera problem. 2019-03-05 2019d064 No observations at MLSO today. Camera problem. 2019-03-06 2019d065 No observations at MLSO today. Camera testing. 2019-03-07 2019d066 KCor: No noticeable coronal activity. Coronal cavity in the E-NE. Coronal cavity in the NW. 2019-03-08 2019d067 KCor: No noticeable coronal activity. 2019-03-09 2019d068 No observations at MLSO today. Cirrus. 2019-03-10 2019d069 No observations at MLSO today. Cirrus. 2019-03-11 2019d070 KCor: No noticeable coronal activity. Two faint coronal cavities in the NE. Faint coronal cavity in the SE. Coronal cavity in the NW. 2019-03-12 2019d071 KCor: No noticeable coronal activity. Very large and dark coronal cavity on the NE. Large coronal cavity in the SE. Small, fuzzy coronal cavity in the NW with tiny prominence. 2019-03-13 2019d072 No observations at MLSO today. Overcast. 2019-03-14 2019d073 KCor: No noticeable coronal activity. Possible pseudo-streamer in the SE. 2019-03-15 2019d074 KCor: No noticeable coronal activity. 2019-03-16 2019d075 KCor: No noticeable coronal activity. Bad fringing. Coronal cavity in the NE. Possible pseudo-streamer in the SE. 2019-03-17 2019d076 KCor: No noticeable coronal activity. Bad fringing. Coronal cavity in the NE. Possible pseudo-streamer in the SE. Coronal cavity in the NW. 2019-03-18 2019d077 KCor: No noticeable coronal activity. Bad fringing. Coronal cavity in the NW. 2019-03-19 2019d078 KCor: No noticeable coronal activity. Bad fringing. Coronal cavity in the W-NW. 2019-03-20 2019d079 KCor: No noticeable coronal activity. Bad fringing. Coronal cavity in the W-NW. Small prominence in the SE rises above the occulter towards the end of the observing day. 2019-03-21 2019d080 KCor: No noticeable coronal activity. Bad fringing. Faint coronal cavity in the NW' 2019-03-22 2019d081 KCor: No noticeable coronal activity. 2019-03-23 2019d082 KCor: Some activity at the location of the AR at the W-NW limb, a dark cavity forms, this appears to be related to small eruption inside the AR. 2019-03-24 2019d083 No observations at MLSO today. Overcast. 2019-03-25 2019d084 KCor: No noticeable coronal activity. 2019-03-26 2019d085 KCor: No noticeable coronal activity. Coronal cavity in the NE with embedded prominence. Large coronal cavity in the SW. Apparent pseudo-streamer in the NW 2019-03-27 2019d086 KCor: Large coronal cavity in the NE with embedded large active prominence. The prominence rises during the observing day, SDO shows that erupts the next morning. Faint coronal cavity in the NW. 2019-03-28 2019d087 KCor: No noticeable coronal activity. 2019-03-29 2019d088 KCor: No noticeable coronal activity. Coronal cavity in the E-NE. 2019-03-30 2019d089 KCor: No noticeable coronal activity. Very faint coronal cavity in the E-NE Very small prominence in the NW 2019-03-31 2019d090 KCor: No noticeable coronal activity. Coronal cavity in the NE. Apparent pseudo-streamer in the SW. Small coronal cavity in the W-NW. 2019-04-01 2019d091 KCor: Very tall loop prominence in the E-NE. Very small prominence in the NW 2019-04-02 2019d092 KCor: No noticeable coronal activity. Prominence/cavity system in the E-NE. 2019-04-03 2019d093 KCor: Elongated coronal cavity in the E-NE appears to move outward and become more narrower. Two coronal cavities in the SE. 2019-04-04 2019d094 KCor: No noticeable coronal activity. Two coronal cavities in the SE. 2019-04-05 2019d095 KCor: Jet/epl in the E at 2021-2053, moves very non-radially southward, SDO shows it is associated to the AR just behind the limb 2019-04-06 2019d096 KCor: Active/eruptive bright prominence in the SE is seen to slowly moving outward. 2019-04-07 2019d097 KCor: Active region at the E limb. 2019-04-08 2019d098 KCor: Active region at the E limb. Dark coronal cavity with small bright prominence in the NW. 2019-04-09 2019d099 KCor: No noticeable coronal activity. Coronal cavity in the NW 2019-04-10 2019d100 KCor: No noticeable coronal activity. Coronal cavity with small bright prominence in the NW, appears to darken towards the end of the observing day. 2019-04-11 2019d101 No observations at MLSO today. Cloudy then rain. 2019-04-12 2019d102 No observations at MLSO today. Clouds and fog. 2019-04-13 2019d103 No observations at MLSO today. Cloudy and rain. 2019-04-14 2019d104 KCor: No noticeable coronal activity. Really bad fringing today Dark coronal cavity in the NW. 2019-04-15 2019d105 KCor: No noticeable coronal activity. Dark coronal cavity in the NW. 2019-04-16 2019d106 KCor: No noticeable coronal activity. Coronal cavity in the E-NE. 2019-04-17 2019d107 KCor: No noticeable coronal activity. Coronal cavity in the E-NE. 2019-04-18 2019d108 KCor: No noticeable coronal activity. Small coronal cavity in the NE. 2019-04-19 2019d109 KCor: Surging in the W at about 1904-1916UT 2054-2130UT and 0006-0038UT CME in the W-NW visible at about 0046-0147UT with no clear front, it seems KCor sees only the bright prominence core. SDO/AIA shows the eruption originates from the AR just behind the limb, corresponds to a LASCO CME. Two coronal cavities in the E-NE and NE. 2019-04-20 2019d110 KCor: Narrow jet at about 2059-2141UT in the W-NW, moves outward along a curved trajectory, no clear CME front. The eruption originates in the AR behind the limb, corresponds to a LASCO CME 2019-04-21 2019d111 KCor: CME with round front in the W-NW visible at about 0254-0422UT, a significant fraction of bright coronal material is seen to fall back along the northern leg of the CME. 2019-04-22 2019d112 No observations at MLSO today. Guider problems. 2019-04-23 2019d113 KCor: No noticeable coronal activity. 2019-04-24 2019d1114 KCor: No noticeable coronal activity. 2019-04-25 2019d115 KCor: Faint cavity eruption in the NW, a balloon-shaped structure is slowly moving outward. The eruption is seen in SDO/AIA 171, but no clear CME in LASCO. 2019-04-26 2019d116 KCor: No noticeable coronal activity. Coronal cavity in the NE. 2019-04-27 2019d117 No observations at MLSO today. Cloudy. 2019-04-28 2019d118 No observations at MLSO today. Cloudy. 2019-04-29 2019d119 KCor: No noticeable coronal activity. Short observing day Coronal cavity in the NE. 2019-04-30 2019d120 KCor: No noticeable coronal activity. Short observing day Coronal cavity in the NE. Lots of dust on the detector. 2019-05-01 2019d121 KCor: No noticeable coronal activity. Short observing day Lots of dust on the detector. 2019-05-02 2019d122 KCor: No noticeable coronal activity. Short observing day Coronal cavity in the NW. Bad fringing and dust on the detector. 2019-05-03 2019d123 KCor: CME with no clear front in the E, appears as faint outflow. 2019-05-04 2019d124 No observations at MLSO today. Windy. 2019-05-05 2019d125 No observations at MLSO today. Windy. 2019-5-06 2019d126 KCor: No noticeable coronal activity. Coronal cavity in the SE. 2019-05-07 1019d127 KCor: CME in the E at about 1840-1916UT Small coronal cavity in the NW. 2019-05-08 1019d128 KCor: No noticeable coronal activity. Coronal cavity in the E-NE. Coronal cavity in the NW. 2019-05-09 1019d129 KCor: No noticeable coronal activity. Small coronal cavity in the NW. 2019-05-10 1019d130 KCor: No noticeable coronal activity. Dark coronal cavity in the NW with small bright prominence. 2019-05-11 1019d131 KCor: No noticeable coronal activity. Coronal cavity in the NW. 2019-05-12 1019d132 KCor: No noticeable coronal activity. 2019-05-13 1019d133 KCor: No noticeable coronal activity. Dark coronal cavity in the NW. 2019-05-14 1019d134 KCor: No noticeable coronal activity. 2019-05-15 1019d135 KCor: No noticeable coronal activity. 2019-05-16 1019d136 KCor: Active prominence in the W-NW. 2019-05-17 1019d137 KCor: No noticeable coronal activity. 2019-05-18 1019d138 KCor: No noticeable coronal activity. 2019-05-19 1019d139 KCor: No noticeable coronal activity. Small dark coronal cavity in the NE. Coronal cavity with small prominence in the SW 2019-05-20 1019d140 KCor: No noticeable coronal activity. Coronal cavity in the SW. 2019-05-21 1019d141 KCor: No noticeable coronal activity. 2019-05-22 1019d142 KCor: Slow CME in the E-NE at about 1919-2243UT appears as a small loop/cavity moving outward, seen in LASCO as a narrow U-shaped CME the following day 2019-05-23 1019d143 KCor: No noticeable coronal activity. 2019-05-24 1019d144 KCor: No noticeable coronal activity. 2019-05-25 1019d145 KCor: No noticeable coronal activity. 2019-05-26 1019d146 No observations at MLSO today. Cloudy. 2019-05-27 1019d147 KCor: No noticeable coronal activity. Coronal cavity in the NW. 2019-05-28 1019d148 KCor: No noticeable coronal activity. Coronal cavity with small prominence in the NE 2019-05-29 1019d149 No observations at MLSO today. Cloudy. 2019-05-30 1019d150 KCor: Arched active prominence in the E-NE shows continual flows. Large, dark coronal cavity in the NW. 2019-05-31 1019d151 KCor: Faint prominence motion in the E-NE. Faint coronal cavity in the E-SE. Large, dark coronal cavity in the NW with very small bright prominence. 2019-06-01 1019d152 KCor: No noticeable coronal activity. Dark coronal cavity in the E-SE with prominence. Large, dark coronal cavity in the NW with bright prominence. 2019-06-02 1019d153 KCor: No noticeable coronal activity. Coronal cavity in the E-SE. Large, dark coronal cavity in the NW with bright prominence. 2019-06-03 1019d154 KCor: No noticeable coronal activity. very short observing day. Coronal cavity in the E-SE. Coronal cavity in the NW. 2019-06-04 1019d155 No observations at MLSO today. rain. 2019-06-05 1019d156 KCor: No noticeable coronal activity. Coronal cavity in the E-NE. 2019-06-06 1019d157 KCor: No noticeable coronal activity. Large coronal cavity in the E-NE. 2019-06-07 1019d158 KCor: No noticeable coronal activity. Large coronal cavity in the E-NE with very small prominence. 2019-06-08 1019d159 KCor: No noticeable coronal activity. Large coronal cavity in the E-NE with very small prominence. 2019-06-09 2019d160 KCor: No noticeable coronal activity. Dark coronal cavity in the E-NE, still a large cavity but appears smaller today. 2019-06-10 2019d161 KCor: No noticeable coronal activity. Coronal cavity in the E-NE. 2019-06-11 2019d162 KCor: No noticeable coronal activity. 2019-06-12 2019d163 KCor: No noticeable coronal activity. 2019-06-13 2019d164 KCor: No noticeable coronal activity. Coronal cavity in the NE. 2019-06-14 2019d165 KCor: No noticeable coronal activity. Coronal cavity in the NE. Coronal cavities in the W-SW. 2019-06-15 2019d166 KCor: Small, dark, coronal cavity in the NE with small active prominence. 2019-06-16 2019d167 KCor: Small, dark, coronal cavity in the NE with small but very active prominence. 2019-06-17 2019d168 KCor: No noticeable coronal activity. 2019-06-18 2019d169 KCor: No noticeable coronal activity. 2019-06-19 2019d170 No observations at MLSO today. Cloudy 2019-06-20 2019d171 KCor: No noticeable coronal activity. 2019-06-21 2019d172 No observations at MLSO today. Cloudy. 2019-06-22 2019d173 No observations at MLSO today. Cloudy. 2019-06-23 2019d174 No observations at MLSO today. Cloudy. 2019-06-24 2019d175 KCor: No noticeable coronal activity. 2019-06-25 2019d176 KCor: No noticeable coronal activity. 2019-06-26 2019d177 No observations at MLSO today. Cirrus. 2019-06-27 2019d178 No observations at MLSO today. Cirrus. 2019-06-28 2019d179 No observations at MLSO today. Cirrus. 2019-06-29 2019d180 KCor: No noticeable coronal activity. Coronal cavity in the NW. 2019-06-30 2019d181 KCor: No noticeable coronal activity. Large, dark coronal cavity in the NW with bright prominence. 2019-07-01 2019d182 KCor: No noticeable coronal activity. Large coronal cavity in the NW. 2019-07-02 2019d183 KCor: No noticeable coronal activity. Total Solar Eclipse. Data in special 5s cadence. Large coronal cavity in the NW. 2019-07-03 2019d184 KCor: Large coronal cavity in the NW may start to lift off. 2019-07-04 2019d185 No observations at MLSO today. Holiday. 2019-07-05 2019d186 No observations at MLSO today. Cirrus. 2019-07-06 2019d187 KCor: No noticeable coronal activity. Coronal cavity in the E-NE. Coronal cavity in the NW. 2019-07-07 2019d188 KCor: No noticeable coronal activity. Coronal cavity in the E-NE. Large coronal cavity in the NW. 2019-07-08 2019d189 No observations at MLSO today. Rain 2019-07-09 2019d190 KCor: No noticeable coronal activity. 2019-07-10 2019d191 KCor: No noticeable coronal activity. Coronal cavity in the NW. 2019-07-11 2019d192 KCor: Faint CME in progress in the E-NE, appears as a dark cavity moving outward very non radially 2019-07-12 2019d193 KCor: No noticeable coronal activity. Apparent coronal cavity in the SW 2019-07-13 2019d194 KCor: No noticeable coronal activity. 2019-07-14 2019d195 KCor: No noticeable coronal activity. Short observing day. Only a few good images. 2019-07-15 2019d196 KCor: No noticeable coronal activity. 2019-07-16 2019d197 KCor: No noticeable coronal activity. 2019-07-17 2019d198 KCor: No noticeable coronal activity. 2019-07-18 2019d199 KCor: No noticeable coronal activity. 2019-07-19 2019d200 KCor: No noticeable coronal activity. Bad fringing. Faint coronal cavity in the NW 2019-07-20 2019d201 KCor: No noticeable coronal activity. Large coronal cavity with active bright prominence in the NW. The prominence appears to rise over and curl during the observing day 2019-07-21 2019d202 KCor: Large coronal cavity with very active, possibly erupting, prominence in the NW. The prominence has fountain-like shape. 2019-07-22 2019d203 No observations at MLSO today. 2019-07-23 2019d204 KCor: No noticeable coronal activity. Coronal cavity in the NE. 2019-07-24 2019d205 No observations at MLSO today. 2019-07-25 2019d206 KCor: No noticeable coronal activity. Coronal cavity in the NE. 2019-07-26 2019d207 KCor: No noticeable coronal activity. 2019-07-27 2019d208 KCor: No noticeable coronal activity. Coronal cavity in the NW 2019-07-28 2019d209 KCor: No noticeable coronal activity. Large coronal cavity in the NE. Large coronal cavity in the NW with bright prominence. 2019-07-29 2019d210 KCor: No noticeable coronal activity. Very large coronal cavity in the NE. Coronal cavity in the NW with bright prominence. 2019-07-30 2019d211 KCor: No noticeable coronal activity. Large coronal cavity in the NE. 2019-07-31 2019d212 No observations at MLSO today. Cloudy. 2019-08-01 2019d213 No observations at MLSO today. Cloudy. 2019-08-02 2019d214 No observations at MLSO today. 2019-08-03 2019d215 No observations at MLSO today. Cloudy. 2019-08-04 2019d216 KCor: Prominence eruption in the NW at about 1801-1910UT. Another piece of the prominence starts to slowly rise at about 19422UT and continues to rise until the end of the observing day at 2339UT. 2019-08-05 2019d217 KCor: No noticeable coronal activity. Possible pseudo-streamer in the SW. 2019-08-06 2019d218 No observations at MLSO today. Cloudy. 2019-08-07 2019d219 KCor: No noticeable coronal activity. Coronal cavity in the SW. Pseudo-streamer in the NW. 2019-08-08 2019d220 KCor: No noticeable coronal activity. Large coronal cavity in the SW. Pseudo-streamer in the NW. 2019-08-09 2019d221 KCor: No noticeable coronal activity. Large coronal cavity with small prominence in the NE. Large coronal cavity in the SW. Pseudo-streamer in the NW. 2019-08-10 2019d222 No observations at MLSO today. Clouds and rain. 2019-08-11 2019d223 No observations at MLSO today. No stuff onsite. 2019-08-12 2019d224 KCor: CME/epl in progress in the E-NE at about PA 70, moves equatorward. Coronal cavity in the NW. 2019-08-13 2019d225 KCor: No noticeable coronal activity. Coronal cavity in the NW. 2019-08-14 2019d226 KCor: No noticeable coronal activity. 2019-08-15 2019d227 KCor: No noticeable coronal activity. Coronal cavity in the NW. 2019-08-16 2019d228 KCor: No noticeable coronal activity. Coronal cavity in the N-NE. 2019-08-17 2019d229 No observations at MLSO today. Cloudy. 2019-08-18 2019d230 KCor: No noticeable coronal activity. Coronal cavity in the N-NE. Possible pseudo-streamer in the SE. 2019-08-19 2019d231 KCor: No noticeable coronal activity. Dark coronal cavity in the N-NE. 2019-08-20 2019d232 KCor: No noticeable coronal activity. Small, dark coronal cavity in the N-NE. Coronal cavity in the SE. Coronal cavity in the NW. 2019-08-21 2019d233 KCor: No noticeable coronal activity. Pseudostreamer in the NE. Large, dark, coronal cavity in the SE. Large coronal cavity in the W-NW. 2019-08-22 2019d234 KCor: No noticeable coronal activity. Large, dark, coronal cavity in the SE. Fainter coronal cavity in the W-NW. 2019-08-23 2019d235 KCor: No noticeable coronal activity. Large, dark coronal cavity in the SE with active prominence. Large, dark coronal cavity in the W-NW. 2019-08-24 2019d236 KCor: No noticeable coronal activity. Coronal cavity in the SE. Large, dark, coronal cavity in the NW with prominence. 2019-08-25 2019d237 KCor: Faint cavity eruption in the W at about 1710-2235UT. Coronal cavity in the NW with prominence. 2019-08-26 2019d238 No observations at MLSO today. Cloudy. 2019-08-27 2019d239 KCor: No noticeable coronal activity. Coronal cavity with prominence in the E-NE. 2019-08-28 2019d240 KCor: No noticeable coronal activity. Coronal cavity in the E-NE. Coronal cavity in the NW. 2019-08-29 2019d241 KCor: No noticeable coronal activity. Coronal cavity in the NW. 2019-08-30 2019d242 No observations at MLSO today. Cirrus. 2019-08-31 2019d243 No observations at MLSO today. Cirrus. 2019-09-01 2019d244 No observations at MLSO today. Clouds and rain. 2019-09-02 2019d245 No observations at MLSO today. Cirrus. 2019-09-03 2019d246 No observations at MLSO today. Cirrus. 2019-09-04 2019d247 No observations at MLSO today. Fog. 2019-09-05 2019d248 No observations at MLSO today. Cloudy. 2019-09-06 2019d249 No observations at MLSO today. Cirrus. 2019-09-07 2019d250 KCor: Faint coronal cavity in the NE. Small prominence in the W-NW appears to slowly rise. Faint jet in the NW at 2008-2036UT 2019-09-08 2019d251 KCor: No noticeable coronal activity. Coronal cavity with faint active prominence in the NE. Coronal cavity in the NW. 2019-09-09 2019d252 KCor: No noticeable coronal activity. 2019-09-10 2019d253 KCor: No noticeable coronal activity. 2019-09-11 2019d254 No observations at MLSO today. Cirrus. 2019-09-12 2019d255 No observations at MLSO today. Cloudy all day. 2019-09-13 2019d256 No observations at MLSO today. Cirrus. 2019-09-14 2019d257 No observations at MLSO today. Cloudy all day. 2019-09-15 2019d258 No observations at MLSO today. Cloudy all day. 2019-09-16 2019d259 No observations at MLSO today. Cirrus. 2019-09-17 2019d260 KCor: No noticeable coronal activity. 2019-09-18 2019d261 No observations at MLSO today. Cirrus. 2019-09-19 2019d262 No observations at MLSO today. Cirrus. 2019-09-20 2019d263 No observations at MLSO today. Cirrus. 2019-09-21 2019d264 KCor: No noticeable coronal activity. Short observing day because of clouds. Coronal cavity with small very prominence in the NW 2019-09-22 2019d265 KCor: No noticeable coronal activity. Very short observing day because of clouds. Coronal cavity in the NW 2019-09-23 2019d266 KCor: No noticeable coronal activity. Very short observing day. 2019-09-24 2019d267 KCor: No noticeable coronal activity. 2019-09-25 2019d268 KCor: No noticeable coronal activity. Short observing day. 2019-09-26 2019d269 KCor: Possible very small cavity in the NE. 2019-09-27 2019d270 KCor: No noticeable coronal activity. Coronal cavity in the NW. 2019-09-28 2019d271 KCor: No noticeable coronal activity. Faint small coronal cavity in the NW. 2019-09-29 2019d272 KCor: No noticeable coronal activity. Very short observing day. Dark, large coronal cavity in the NE. Very dark, large coronal cavity in the SW. Small coronal cavity in the NW. 2019-09-30 2019d273 KCor: Very dark coronal cavity in the NE. Dark, large coronal cavity in the SW with bright active/pre-eruptive arched prominence. The prominence rises and shoes some swirling motions and downflows. It will partially erupt during the MLSO observing night, as shown by SDO AIA. Narrow ray in the NW above a faint cavity. Possible pseudo-streamer 2019-10-01 2019d274 KCor: Coronal cavity in the NE with very small active prominence. The prominence is seen to rise up and then fall down on. Very large, very dark, coronal cavity in the SW. Pseudo-streamer in the NW with small cavities underneath. 2019-10-02 2019d275 KCor: No noticeable coronal activity. Short observing day. Coronal cavity in the SW. Pseudo-streamer in the NW 2019-10-03 2019d276 No observations at MLSO today. No staff on site. 2019-10-04 2019d277 No observations at MLSO today. Cirrus. 2019-10-05 2019d278 KCor: Possible CME in the NW, faint bright feature is deflected toward the north pole. 2019-10-06 2019d279 No observations at MLSO today. Cloudy. 2019-10-07 2019d280 No observations at MLSO today. Cloudy. 2019-10-08 2019d281 KCor: No noticeable coronal activity. 2019-10-09 2019d282 KCor: No noticeable coronal activity. 2019-10-10 2019d283 No observations at MLSO today. Clouds and rain. 2019-10-11 2019d284 No observations at MLSO today. Cirrus. 2019-10-12 2019d285 No observations at MLSO today. Cirrus. 2019-10-13 2019d286 No observations at MLSO today. Cirrus. 2019-10-14 2019d287 No observations at MLSO today. Cirrus. 2019-10-15 2019d288 No observations at MLSO today. Cirrus. 2019-10-16 2019d289 KCor: No noticeable activity. 2019-10-17 2019d290 KCor: Bright prominence in the NW, appears to slowly rise 2019-10-18 2019d291 KCor: No noticeable activity. Faint coronal cavity in the W-NW. 2019-10-19 2019d292 No observations at MLSO today. Overcast. 2019-10-20 2019d293 KCor: No noticeable coronal activity. 2019-10-21 2019d294 KCor: No noticeable coronal activity. 2019-10-22 2019d295 KCor: No noticeable coronal activity. Coronal cavity in the W-NW. 2019-10-23 2019d296 KCor: No noticeable coronal activity. Coronal cavity in the W-NW. 2019-10-24 2019d297 KCor: No noticeable coronal activity. Coronal cavity in the W-NW. Coronal cavity in the NW with small bright prominence. 2019-10-25 2019d298 KCor: No noticeable coronal activity. Faint coronal cavity in the NW. 2019-10-26 2019d299 No observations at MLSO today. Cirrus. 2019-10-27 2019d300 KCor: Faint CME/jet in the E noticeable at about 1902-1942UT, SDO/AIA shows its originates from the small active region at the limb, no clear CME visible in LASCO Two faint coronal cavities in the SW, apparent large pseudo-streamer Corona cavity with active prominence in the NW. Two small pieces of prominence material are seen to rise inside the cavity. 2019-10-28 2019d301 KCor: Coronal cavity in the NE. Two faint coronal cavities in the SW, apparent large pseudo-streamer Corona cavity with active prominence in the NW. 2019-10-29 2019d302 KCor: No noticeable coronal activity. Dark coronal cavity in the NE. Corona cavity in the SW. 2019-10-30 2019d303 KCor: No noticeable coronal activity. Coronal cavity in the NE. Coronal cavity in the SW. 2019-10-31 2019d304 No observations at MLSO today. Overcast 2019-11-01 2019d305 KCor: No noticeable coronal activity. Coronal cavity in the NE. Faint coronal cavity in the SW. 2019-11-02 2019d306 KCor: No noticeable coronal activity. 2019-11-03 2019d307 KCor: Active prominence in the NW. 2019-11-04 2019d308 KCor: No noticeable coronal activity. 2019-11-05 2019d309 No observations at MLSO today. Cirrus. 2019-11-06 2019d310 No observations at MLSO today. Cloudy. 2019-11-07 2019d311 KCor: No noticeable coronal activity. Coronal cavity in the NE. 2019-11-08 2019d312 KCor: No noticeable coronal activity. Short observing day. Coronal cavity in the NE. 2019-11-09 2019d313 KCor: No noticeable coronal activity. Coronal cavity in the NE. Coronal cavity in the NW. 2019-11-10 2019d314 KCor: No noticeable coronal activity. Small coronal cavity in the NE. Coronal cavity in the SE. Coronal cavity with bright prominence in the NW. 2019-11-11 2019d315 KCor: Mercury Transit visible off the W limb. Apparent pseudo-streamer in the NE. Coronal cavity in the SE. Coronal cavity in the NW. 2019-11-12 2019d316 KCor: No noticeable coronal activity. Short observing day. Coronal cavity in the SE. Erupting cavity W-SW. Larger coronal cavity in the NW. 2019-11-13 2019d317 KCor: Coronal cavity in the NW with small active prominence. 2019-11-14 2019d318 KCor: Coronal cavity in the SE. Coronal cavity in the NW with small prominence. 2019-11-15 2019d319 KCor: Faint coronal cavities in the SE, possible pseudo-streamer Coronal cavity in the NW with small prominence. 2019-11-16 2019d320 KCor: Large coronal cavity in the NE. Faint coronal cavity in the SE with small prominence. Faint coronal cavity in the NW 2019-11-17 2019d321 No observations at MLSO today. Overcast. 2019-11-18 2019d322 KCor: No noticeable coronal activity. 2019-11-19 2019d323 No observations at MLSO today. Cloudy 2019-11-20 2019d324 KCor: No noticeable coronal activity. Short observing day. 2019-11-21 2019d325 No observations at MLSO today. Cirrus. 2019-11-22 2019d326 No observations at MLSO today. Overcast. 2019-11-23 2019d327 No observations at MLSO today. Overcast. Foggy. 2019-11-24 2019d328 KCor: No good data today. Coronal cavity in the NE with prominence. 2019-11-25 2019d329 No observations at MLSO today. 2019-11-26 2019d330 KCor: No noticeable coronal activity. Coronal cavity in the NE. Coronal cavity in the SW 2019-11-27 2019d331 No observations at MLSO today. Sky too bright. 2019-11-28 2019d332 KCor: No noticeable coronal activity. Coronal cavity in the NE. Dark coronal cavity in the SW 2019-11-29 2019d333 No observations at MLSO today. Sky too bright. 2019-11-30 2019d334 No observations at MLSO today. Cloudy. 2019-12-01 2019d335 No observations at MLSO today. Cirrus. 2019-12-02 2019d336 No observations at MLSO today. Overcast. 2019-12-03 2019d337 KCor: Coronal cavity E-NE. Active/erupting prominence in the SE. Bright prominence moves outward in a non-radial trajectory (equatorward) 2019-12-04 2019d338 No observations at MLSO today. Cirrus. 2019-12-05 2019d339 No observations at MLSO today. Cloudy. 2019-12-06 2019d340 No observations at MLSO today. Fog and rain. 2019-12-07 2019d341 No observations at MLSO today? PIXIE chassis problem starting up. 2019-12-08 2019d342 KCor: No noticeable coronal activity. Coronal cavity/possible pseudostreamer in the NE. Coronal cavity in the SW. 2019-12-09 2019d343 KCor: Possible pseudostreamer in the NE. Coronal cavity in the SE. Apparent faint outflow in the W-NW in outer field of view, but really noisy data, may be just an artifact caused by fringing which is very bad today. 2019-12-10 2019d344 KCor: Eruptive prominence in the SE at about 1945-0215UT This is the end of a prominence eruption observed by SDO. 2019-12-11 2019d345 KCor: Coronal cavity in the the NW. Faint motion in the NW of a thin bright structure, does not appear to be a CME. 2019-12-12 2019d346 KCor: Prominence eruption in progress in the W-NW, visible at about 1755-2345UT. Thick, faint prominence moves strongly equatorward. 2019-12-13 2019d347 No observations at MLSO today. Overcast. 2019-12-14 2019d348 No observations at MLSO today. Cirrus. 2019-12-15 2019d349 KCor: No noticeable coronal activity. Short observing day. 2019-12-16 2019d350 KCor: No noticeable coronal activity. 2019-12-17 2019d351 KCor: No noticeable coronal activity. Coronal cavity in the NW. 2019-12-18 2019d352 KCor: No noticeable coronal activity. Coronal cavity in the NW. 2019-12-19 2019d353 KCor: No noticeable coronal activity. Coronal cavity in the NW. 2019-12-20 2019d354 No observations at MLSO today. Cirrus. 2019-12-21 2019d355 No observations at MLSO today. Overcast. 2019-12-22 2019d356 No observations at MLSO today. Cirrus. 2019-12-23 2019d357 No observations at MLSO today. Cloudy. 2019-12-24 2019d358 KCor: No noticeable coronal activity. Large, dark coronal cavity in the NE. Large coronal cavity in the SW. Large, faint coronal cavity in the NW 2019-12-25 2019d359 No observations at MLSO today. Cloudy. 2019-12-26 2019d360 KCor: No noticeable coronal activity. Large, dark coronal cavity in the NE with small bright prominence. 2019-12-27 2019d361 KCor: Coronal cavity in the NE. Cavity/prominence eruption in the W-NW, moves equatorward, at about 1804-2100UT. 2019-12-28 2019d362 KCor: No noticeable coronal activity. Coronal cavity in the NE. 2019-12-29 2019d363 KCor: No noticeable coronal activity. Coronal cavity in the NE. 2019-12-30 2019d364 KCor: No noticeable coronal activity. Round coronal cavity in the NE. 2019-12-31 2019d365 KCor: No noticeable coronal activity. Tall, round coronal cavity in the NE, it appears to be in a pre-eruptive state.