Observations from the GOES-R Solar UltraViolet Imager Extended Coronal Imaging Campaign

Tadikonda, Sivakumar K ; Seaton, Daniel B ; Comeyne, Gustave J ; Krimchansky, Alexander

关键词: CORONAS;    EXTREME ULTRAVIOLET RADIATION;    GEOS SATELLITES (ESA);    IMAGING TECHNIQUES;    RADII;    SOLAR ACTIVITY;    SOLAR CORONA;    SOLAR CYCLES;    SOLAR PROMINENCES;    SOLAR RADIATION;    SUN;   

RP-ID  :  GSFC-E-DAA-TN69300

学科分类：天文学(综合)

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

Solar corona in 17.1nm and 19.5nmwavelengths up to three solar radii from Sun center was observed by the Solar UltraViolet Imager (SUVI) on the Geostationary Operational Environmental Satellite (GOES) –16 and GOES-17. The nominally Sun-pointed SUVI was off-pointed to the left and to the right of the Sun center at a regular cadence and a composite Extended Coronal Imaging (ECI) frame was created. The imaging area in the composite is about three times the nominal image area in the East-West direction (about 5*R(sub Sun) versus 1.6*R(sub Sun) for nominal images). The campaign was conducted in February (4 hours), June (72 hours), and August-September of 2018 (5 weeks). Limited solar CME activity during the 5-week campaign was observed in both the SUVI and LASCO C2 imagers. Some of the observations during this campaign include structures up to a few solar radii off the solar limb, and interesting coronal activity –both on and off the solar disk. They are presented here.