1 July 2015
⇐20150630 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150702⇒

NOAA
4 Active Regions
12373
12375
12376
12374

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E27S26
(-385",-458") 		E49-E08
(41) 		3.6 -2.5 -3.8e33
2 E21S75
(-89",-920") 		E40-E07
(33) 		0.1 -1.3 -9.4e32

Note: Solar Monitor's coronal hole segmentations are performed by CHIMERA, a copy of which is available at: github.com/TCDSolar/CHIMERA.

The operations of the CHIMERA algorithm is described in a peer reviewed paper: arxiv.org/abs/1711.11476.

An extensive copy of coronal hole properties are available at: solarmonitor.org/data.

The latest positions of the coronal holes are given in heliocentric co-ordinates, and the region positions are valid on 1-Jul-2015 23:35 UT .