SOT: Synoptic
2008-08-07T18:04:00 to 2008-08-07T22:34:00
Science Goal: Synoptic
Program: Synoptic BFI NFI (revised: small, no mask)
Target: Sun Center
xcen=0 ycen=0
Instrument: SOT
HOP/JOP: 76
Description:
SOT will support for HOP 76 (equatorial coronal hole). HOP 76 has 3 areas labeled S1, S2, S3 and we do a 164x164"" SP fast map in each one and low cadence FG images. Scientific Objectives: High-speed solar wind with velocity of about 700 km/s was detected by ACE from July 12 to 16, 2008. Just before, on July 10-12, an equatorial coronal hole had passed the central meridian. Various models (e.g. the Wang-Sheeley-Arge solar wind speed prediction model with potential field approximation and our MHD model) strongly suggest that the high-speed solar wind originated from this equatorial coronal hole.
