6 September 2012
⇐20120905 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120907⇒

NOAA
6 Active Regions
11559
11560
11562
11564
11565
11566

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W11N40
(142",518") 		E02-W17
(19) 		0.8 1.7 5.0e32
2 E39N27
(-537",349") 		E46-E29
(17) 		0.7 -7.8 -2.6e33
3 E03N61
(-21",767") 		E16-W17
(33) 		0.4 0.3 1.2e32

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 6-Sep-2012 21:00 UT .